nsion='value'] Default 'value'. can be 'a', 'b', 'c', 'd', 'e'.
         * @return {number}
         */
        getValue: function (dimension) {
            var data = this[hostName][dataName];
            return data.get(data.getDimension(dimension || 'value'), this.dataIndex);
        },

        /**
         * @param {Object|string} key
         * @param {*} [value]
         */
        setVisual: function (key, value) {
            this.dataIndex >= 0
                && this[hostName][dataName].setItemVisual(this.dataIndex, key, value);
        },

        /**
         * @param {string} key
         * @return {boolean}
         */
        getVisual: function (key, ignoreParent) {
            return this[hostName][dataName].getItemVisual(this.dataIndex, key, ignoreParent);
        },

        /**
         * @param {Object} layout
         * @return {boolean} [merge=false]
         */
        setLayout: function (layout, merge$$1) {
            this.dataIndex >= 0
                && this[hostName][dataName].setItemLayout(this.dataIndex, layout, merge$$1);
        },

        /**
         * @return {Object}
         */
        getLayout: function () {
            return this[hostName][dataName].getItemLayout(this.dataIndex);
        },

        /**
         * @return {module:zrender/Element}
         */
        getGraphicEl: function () {
            return this[hostName][dataName].getItemGraphicEl(this.dataIndex);
        },

        /**
         * @return {number}
         */
        getRawIndex: function () {
            return this[hostName][dataName].getRawIndex(this.dataIndex);
        }
    };
};

mixin(Node, createGraphDataProxyMixin('hostGraph', 'data'));
mixin(Edge, createGraphDataProxyMixin('hostGraph', 'edgeData'));

Graph.Node = Node;
Graph.Edge = Edge;

enableClassCheck(Node);
enableClassCheck(Edge);

var createGraphFromNodeEdge = function (nodes, edges, seriesModel, directed, beforeLink) {
    // ??? TODO
    // support dataset?
    var graph = new Graph(directed);
    for (var i = 0; i < nodes.length; i++) {
        graph.addNode(retrieve(
            // Id, name, dataIndex
            nodes[i].id, nodes[i].name, i
        ), i);
    }

    var linkNameList = [];
    var validEdges = [];
    var linkCount = 0;
    for (var i = 0; i < edges.length; i++) {
        var link = edges[i];
        var source = link.source;
        var target = link.target;
        // addEdge may fail when source or target not exists
        if (graph.addEdge(source, target, linkCount)) {
            validEdges.push(link);
            linkNameList.push(retrieve(link.id, source + ' > ' + target));
            linkCount++;
        }
    }

    var coordSys = seriesModel.get('coordinateSystem');
    var nodeData;
    if (coordSys === 'cartesian2d' || coordSys === 'polar') {
        nodeData = createListFromArray(nodes, seriesModel);
    }
    else {
        // FIXME
        var coordSysCtor = CoordinateSystemManager.get(coordSys);
        // FIXME
        var dimensionNames = createDimensions(nodes, {
            coordDimensions: (
                (coordSysCtor && coordSysCtor.type !== 'view')
                    ? (coordSysCtor.dimensions || []) : []
            ).concat(['value'])
        });
        nodeData = new List(dimensionNames, seriesModel);
        nodeData.initData(nodes);
    }

    var edgeData = new List(['value'], seriesModel);
    edgeData.initData(validEdges, linkNameList);

    beforeLink && beforeLink(nodeData, edgeData);

    linkList({
        mainData: nodeData,
        struct: graph,
        structAttr: 'graph',
        datas: {node: nodeData, edge: edgeData},
        datasAttr: {node: 'data', edge: 'edgeData'}
    });

    // Update dataIndex of nodes and edges because invalid edge may be removed
    graph.update();

    return graph;
};

var GraphSeries = extendSeriesModel({

    type: 'series.graph',

    init: function (option) {
        GraphSeries.superApply(this, 'init', arguments);

        // Provide data for legend select
        this.legendDataProvider = function () {
            return this._categoriesData;
        };

        this.fillDataTextStyle(option.edges || option.links);

        this._updateCategoriesData();
    },

    mergeOption: function (option) {
        GraphSeries.superApply(this, 'mergeOption', arguments);

        this.fillDataTextStyle(option.edges || option.links);

        this._updateCategoriesData();
    },

    mergeDefaultAndTheme: function (option) {
        GraphSeries.superApply(this, 'mergeDefaultAndTheme', arguments);
        defaultEmphasis(option, ['edgeLabel'], ['show']);
    },

    getInitialData: function (option, ecModel) {
        var edges = option.edges || option.links || [];
        var nodes = option.data || option.nodes || [];
        var self = this;

        if (nodes && edges) {
            return createGraphFromNodeEdge(nodes, edges, this, true, beforeLink).data;
        }

        function beforeLink(nodeData, edgeData) {
            // Overwrite nodeData.getItemModel to
            nodeData.wrapMethod('getItemModel', function (model) {
                var categoriesModels = self._categoriesModels;
                var categoryIdx = model.getShallow('category');
                var categoryModel = categoriesModels[categoryIdx];
                if (categoryModel) {
                    categoryModel.parentModel = model.parentModel;
                    model.parentModel = categoryModel;
                }
                return model;
            });

            var edgeLabelModel = self.getModel('edgeLabel');
            // For option `edgeLabel` can be found by label.xxx.xxx on item mode.
            var fakeSeriesModel = new Model(
                {label: edgeLabelModel.option},
                edgeLabelModel.parentModel,
                ecModel
            );

            edgeData.wrapMethod('getItemModel', function (model) {
                model.customizeGetParent(edgeGetParent);
                return model;
            });

            function edgeGetParent(path) {
                path = this.parsePath(path);
                return (path && path[0] === 'label')
                    ? fakeSeriesModel
                    : this.parentModel;
            }
        }
    },

    /**
     * @return {module:echarts/data/Graph}
     */
    getGraph: function () {
        return this.getData().graph;
    },

    /**
     * @return {module:echarts/data/List}
     */
    getEdgeData: function () {
        return this.getGraph().edgeData;
    },

    /**
     * @return {module:echarts/data/List}
     */
    getCategoriesData: function () {
        return this._categoriesData;
    },

    /**
     * @override
     */
    formatTooltip: function (dataIndex, multipleSeries, dataType) {
        if (dataType === 'edge') {
            var nodeData = this.getData();
            var params = this.getDataParams(dataIndex, dataType);
            var edge = nodeData.graph.getEdgeByIndex(dataIndex);
            var sourceName = nodeData.getName(edge.node1.dataIndex);
            var targetName = nodeData.getName(edge.node2.dataIndex);

            var html = [];
            sourceName != null && html.push(sourceName);
            targetName != null && html.push(targetName);
            html = encodeHTML(html.join(' > '));

            if (params.value) {
                html += ' : ' + encodeHTML(params.value);
            }
            return html;
        }
        else { // dataType === 'node' or empty
            return GraphSeries.superApply(this, 'formatTooltip', arguments);
        }
    },

    _updateCategoriesData: function () {
        var categories = map(this.option.categories || [], function (category) {
            // Data must has value
            return category.value != null ? category : extend({
                value: 0
            }, category);
        });
        var categoriesData = new List(['value'], this);
        categoriesData.initData(categories);

        this._categoriesData = categoriesData;

        this._categoriesModels = categoriesData.mapArray(function (idx) {
            return categoriesData.getItemModel(idx, true);
        });
    },

    setZoom: function (zoom) {
        this.option.zoom = zoom;
    },

    setCenter: function (center) {
        this.option.center = center;
    },

    isAnimationEnabled: function () {
        return GraphSeries.superCall(this, 'isAnimationEnabled')
            // Not enable animation when do force layout
            && !(this.get('layout') === 'force' && this.get('force.layoutAnimation'));
    },

    defaultOption: {
        zlevel: 0,
        z: 2,

        coordinateSystem: 'view',

        // Default option for all coordinate systems
        // xAxisIndex: 0,
        // yAxisIndex: 0,
        // polarIndex: 0,
        // geoIndex: 0,

        legendHoverLink: true,

        hoverAnimation: true,

        layout: null,

        focusNodeAdjacency: false,

        // Configuration of circular layout
        circular: {
            rotateLabel: false
        },
        // Configuration of force directed layout
        force: {
            initLayout: null,
            // Node repulsion. Can be an array to represent range.
            repulsion: [0, 50],
            gravity: 0.1,

            // Edge length. Can be an array to represent range.
            edgeLength: 30,

            layoutAnimation: true
        },

        left: 'center',
        top: 'center',
        // right: null,
        // bottom: null,
        // width: '80%',
        // height: '80%',

        symbol: 'circle',
        symbolSize: 10,

        edgeSymbol: ['none', 'none'],
        edgeSymbolSize: 10,
        edgeLabel: {
            position: 'middle'
        },

        draggable: false,

        roam: false,

        // Default on center of graph
        center: null,

        zoom: 1,
        // Symbol size scale ratio in roam
        nodeScaleRatio: 0.6,
        // cursor: null,

        // categories: [],

        // data: []
        // Or
        // nodes: []
        //
        // links: []
        // Or
        // edges: []

        label: {
            show: false,
            formatter: '{b}'
        },

        itemStyle: {},

        lineStyle: {
            color: '#aaa',
            width: 1,
            curveness: 0,
            opacity: 0.5
        },
        emphasis: {
            label: {
                show: true
            }
        }
    }
});

/**
 * Line path for bezier and straight line draw
 */

var straightLineProto = Line.prototype;
var bezierCurveProto = BezierCurve.prototype;

function isLine(shape) {
    return isNaN(+shape.cpx1) || isNaN(+shape.cpy1);
}

var LinePath = extendShape({

    type: 'ec-line',

    style: {
        stroke: '#000',
        fill: null
    },

    shape: {
        x1: 0,
        y1: 0,
        x2: 0,
        y2: 0,
        percent: 1,
        cpx1: null,
        cpy1: null
    },

    buildPath: function (ctx, shape) {
        (isLine(shape) ? straightLineProto : bezierCurveProto).buildPath(ctx, shape);
    },

    pointAt: function (t) {
        return isLine(this.shape)
            ? straightLineProto.pointAt.call(this, t)
            : bezierCurveProto.pointAt.call(this, t);
    },

    tangentAt: function (t) {
        var shape = this.shape;
        var p = isLine(shape)
            ? [shape.x2 - shape.x1, shape.y2 - shape.y1]
            : bezierCurveProto.tangentAt.call(this, t);
        return normalize(p, p);
    }
});

/**
 * @module echarts/chart/helper/Line
 */

var SYMBOL_CATEGORIES = ['fromSymbol', 'toSymbol'];

function makeSymbolTypeKey(symbolCategory) {
    return '_' + symbolCategory + 'Type';
}
/**
 * @inner
 */
function createSymbol$1(name, lineData, idx) {
    var color = lineData.getItemVisual(idx, 'color');
    var symbolType = lineData.getItemVisual(idx, name);
    var symbolSize = lineData.getItemVisual(idx, name + 'Size');

    if (!symbolType || symbolType === 'none') {
        return;
    }

    if (!isArray(symbolSize)) {
        symbolSize = [symbolSize, symbolSize];
    }
    var symbolPath = createSymbol(
        symbolType, -symbolSize[0] / 2, -symbolSize[1] / 2,
        symbolSize[0], symbolSize[1], color
    );

    symbolPath.name = name;

    return symbolPath;
}

function createLine(points) {
    var line = new LinePath({
        name: 'line'
    });
    setLinePoints(line.shape, points);
    return line;
}

function setLinePoints(targetShape, points) {
    var p1 = points[0];
    var p2 = points[1];
    var cp1 = points[2];
    targetShape.x1 = p1[0];
    targetShape.y1 = p1[1];
    targetShape.x2 = p2[0];
    targetShape.y2 = p2[1];
    targetShape.percent = 1;

    if (cp1) {
        targetShape.cpx1 = cp1[0];
        targetShape.cpy1 = cp1[1];
    }
    else {
        targetShape.cpx1 = NaN;
        targetShape.cpy1 = NaN;
    }
}

function updateSymbolAndLabelBeforeLineUpdate () {
    var lineGroup = this;
    var symbolFrom = lineGroup.childOfName('fromSymbol');
    var symbolTo = lineGroup.childOfName('toSymbol');
    var label = lineGroup.childOfName('label');
    // Quick reject
    if (!symbolFrom && !symbolTo && label.ignore) {
        return;
    }

    var invScale = 1;
    var parentNode = this.parent;
    while (parentNode) {
        if (parentNode.scale) {
            invScale /= parentNode.scale[0];
        }
        parentNode = parentNode.parent;
    }

    var line = lineGroup.childOfName('line');
    // If line not changed
    // FIXME Parent scale changed
    if (!this.__dirty && !line.__dirty) {
        return;
    }

    var percent = line.shape.percent;
    var fromPos = line.pointAt(0);
    var toPos = line.pointAt(percent);

    var d = sub([], toPos, fromPos);
    normalize(d, d);

    if (symbolFrom) {
        symbolFrom.attr('position', fromPos);
        var tangent = line.tangentAt(0);
        symbolFrom.attr('rotation', Math.PI / 2 - Math.atan2(
            tangent[1], tangent[0]
        ));
        symbolFrom.attr('scale', [invScale * percent, invScale * percent]);
    }
    if (symbolTo) {
        symbolTo.attr('position', toPos);
        var tangent = line.tangentAt(1);
        symbolTo.attr('rotation', -Math.PI / 2 - Math.atan2(
            tangent[1], tangent[0]
        ));
        symbolTo.attr('scale', [invScale * percent, invScale * percent]);
    }

    if (!label.ignore) {
        label.attr('position', toPos);

        var textPosition;
        var textAlign;
        var textVerticalAlign;

        var distance$$1 = 5 * invScale;
        // End
        if (label.__position === 'end') {
            textPosition = [d[0] * distance$$1 + toPos[0], d[1] * distance$$1 + toPos[1]];
            textAlign = d[0] > 0.8 ? 'left' : (d[0] < -0.8 ? 'right' : 'center');
            textVerticalAlign = d[1] > 0.8 ? 'top' : (d[1] < -0.8 ? 'bottom' : 'middle');
        }
        // Middle
        else if (label.__position === 'middle') {
            var halfPercent = percent / 2;
            var tangent = line.tangentAt(halfPercent);
            var n = [tangent[1], -tangent[0]];
            var cp = line.pointAt(halfPercent);
            if (n[1] > 0) {
                n[0] = -n[0];
                n[1] = -n[1];
            }
            textPosition = [cp[0] + n[0] * distance$$1, cp[1] + n[1] * distance$$1];
            textAlign = 'center';
            textVerticalAlign = 'bottom';
            var rotation = -Math.atan2(tangent[1], tangent[0]);
            if (toPos[0] < fromPos[0]) {
                rotation = Math.PI + rotation;
            }
            label.attr('rotation', rotation);
        }
        // Start
        else {
            textPosition = [-d[0] * distance$$1 + fromPos[0], -d[1] * distance$$1 + fromPos[1]];
            textAlign = d[0] > 0.8 ? 'right' : (d[0] < -0.8 ? 'left' : 'center');
            textVerticalAlign = d[1] > 0.8 ? 'bottom' : (d[1] < -0.8 ? 'top' : 'middle');
        }
        label.attr({
            style: {
                // Use the user specified text align and baseline first
                textVerticalAlign: label.__verticalAlign || textVerticalAlign,
                textAlign: label.__textAlign || textAlign
            },
            position: textPosition,
            scale: [invScale, invScale]
        });
    }
}

/**
 * @constructor
 * @extends {module:zrender/graphic/Group}
 * @alias {module:echarts/chart/helper/Line}
 */
function Line$1(lineData, idx, seriesScope) {
    Group.call(this);

    this._createLine(lineData, idx, seriesScope);
}

var lineProto = Line$1.prototype;

// Update symbol position and rotation
lineProto.beforeUpdate = updateSymbolAndLabelBeforeLineUpdate;

lineProto._createLine = function (lineData, idx, seriesScope) {
    var seriesModel = lineData.hostModel;
    var linePoints = lineData.getItemLayout(idx);

    var line = createLine(linePoints);
    line.shape.percent = 0;
    initProps(line, {
        shape: {
            percent: 1
        }
    }, seriesModel, idx);

    this.add(line);

    var label = new Text({
        name: 'label'
    });
    this.add(label);

    each$1(SYMBOL_CATEGORIES, function (symbolCategory) {
        var symbol = createSymbol$1(symbolCategory, lineData, idx);
        // symbols must added after line to make sure
        // it will be updated after line#update.
        // Or symbol position and rotation update in line#beforeUpdate will be one frame slow
        this.add(symbol);
        this[makeSymbolTypeKey(symbolCategory)] = lineData.getItemVisual(idx, symbolCategory);
    }, this);

    this._updateCommonStl(lineData, idx, seriesScope);
};

lineProto.updateData = function (lineData, idx, seriesScope) {
    var seriesModel = lineData.hostModel;

    var line = this.childOfName('line');
    var linePoints = lineData.getItemLayout(idx);
    var target = {
        shape: {}
    };
    setLinePoints(target.shape, linePoints);
    updateProps(line, target, seriesModel, idx);

    each$1(SYMBOL_CATEGORIES, function (symbolCategory) {
        var symbolType = lineData.getItemVisual(idx, symbolCategory);
        var key = makeSymbolTypeKey(symbolCategory);
        // Symbol changed
        if (this[key] !== symbolType) {
            this.remove(this.childOfName(symbolCategory));
            var symbol = createSymbol$1(symbolCategory, lineData, idx);
            this.add(symbol);
        }
        this[key] = symbolType;
    }, this);

    this._updateCommonStl(lineData, idx, seriesScope);
};

lineProto._updateCommonStl = function (lineData, idx, seriesScope) {
    var seriesModel = lineData.hostModel;

    var line = this.childOfName('line');

    var lineStyle = seriesScope && seriesScope.lineStyle;
    var hoverLineStyle = seriesScope && seriesScope.hoverLineStyle;
    var labelModel = seriesScope && seriesScope.labelModel;
    var hoverLabelModel = seriesScope && seriesScope.hoverLabelModel;

    // Optimization for large dataset
    if (!seriesScope || lineData.hasItemOption) {
        var itemModel = lineData.getItemModel(idx);

        lineStyle = itemModel.getModel('lineStyle').getLineStyle();
        hoverLineStyle = itemModel.getModel('emphasis.lineStyle').getLineStyle();

        labelModel = itemModel.getModel('label');
        hoverLabelModel = itemModel.getModel('emphasis.label');
    }

    var visualColor = lineData.getItemVisual(idx, 'color');
    var visualOpacity = retrieve3(
        lineData.getItemVisual(idx, 'opacity'),
        lineStyle.opacity,
        1
    );

    line.useStyle(defaults(
        {
            strokeNoScale: true,
            fill: 'none',
            stroke: visualColor,
            opacity: visualOpacity
        },
        lineStyle
    ));
    line.hoverStyle = hoverLineStyle;

    // Update symbol
    each$1(SYMBOL_CATEGORIES, function (symbolCategory) {
        var symbol = this.childOfName(symbolCategory);
        if (symbol) {
            symbol.setColor(visualColor);
            symbol.setStyle({
                opacity: visualOpacity
            });
        }
    }, this);

    var showLabel = labelModel.getShallow('show');
    var hoverShowLabel = hoverLabelModel.getShallow('show');

    var label = this.childOfName('label');
    var defaultLabelColor;
    var normalText;
    var emphasisText;

    if (showLabel || hoverShowLabel) {
        defaultLabelColor = visualColor || '#000';

        normalText = seriesModel.getFormattedLabel(idx, 'normal', lineData.dataType);
        if (normalText == null) {
            var rawVal = seriesModel.getRawValue(idx);
            normalText = rawVal == null
                ? lineData.getName(idx)
                : isFinite(rawVal)
                ? round$1(rawVal)
                : rawVal;
        }
        emphasisText = retrieve2(
            seriesModel.getFormattedLabel(idx, 'emphasis', lineData.dataType),
            normalText
        );
    }

    // label.afterUpdate = lineAfterUpdate;
    if (showLabel) {
        var labelStyle = setTextStyle(label.style, labelModel, {
            text: normalText
        }, {
            autoColor: defaultLabelColor
        });

        label.__textAlign = labelStyle.textAlign;
        label.__verticalAlign = labelStyle.textVerticalAlign;
        // 'start', 'middle', 'end'
        label.__position = labelModel.get('position') || 'middle';
    }
    else {
        label.setStyle('text', null);
    }

    if (hoverShowLabel) {
        // Only these properties supported in this emphasis style here.
        label.hoverStyle = {
            text: emphasisText,
            textFill: hoverLabelModel.getTextColor(true),
            // For merging hover style to normal style, do not use
            // `hoverLabelModel.getFont()` here.
            fontStyle: hoverLabelModel.getShallow('fontStyle'),
            fontWeight: hoverLabelModel.getShallow('fontWeight'),
            fontSize: hoverLabelModel.getShallow('fontSize'),
            fontFamily: hoverLabelModel.getShallow('fontFamily')
        };
    }
    else {
        label.hoverStyle = {
            text: null
        };
    }

    label.ignore = !showLabel && !hoverShowLabel;

    setHoverStyle(this);
};

lineProto.highlight = function () {
    this.trigger('emphasis');
};

lineProto.downplay = function () {
    this.trigger('normal');
};

lineProto.updateLayout = function (lineData, idx) {
    this.setLinePoints(lineData.getItemLayout(idx));
};

lineProto.setLinePoints = function (points) {
    var linePath = this.childOfName('line');
    setLinePoints(linePath.shape, points);
    linePath.dirty();
};

inherits(Line$1, Group);

/**
 * @module echarts/chart/helper/LineDraw
 */

// import IncrementalDisplayable from 'zrender/src/graphic/IncrementalDisplayable';

/**
 * @alias module:echarts/component/marker/LineDraw
 * @constructor
 */
function LineDraw(ctor) {
    this._ctor = ctor || Line$1;

    this.group = new Group();
}

var lineDrawProto = LineDraw.prototype;

lineDrawProto.isPersistent = function () {
    return true;
};

/**
 * @param {module:echarts/data/List} lineData
 */
lineDrawProto.updateData = function (lineData) {
    var lineDraw = this;
    var group = lineDraw.group;

    var oldLineData = lineDraw._lineData;
    lineDraw._lineData = lineData;

    // There is no oldLineData only when first rendering or switching from
    // stream mode to normal mode, where previous elements should be removed.
    if (!oldLineData) {
        group.removeAll();
    }

    var seriesScope = makeSeriesScope$1(lineData);

    lineData.diff(oldLineData)
        .add(function (idx) {
            doAdd(lineDraw, lineData, idx, seriesScope);
        })
        .update(function (newIdx, oldIdx) {
            doUpdate(lineDraw, oldLineData, lineData, oldIdx, newIdx, seriesScope);
        })
        .remove(function (idx) {
            group.remove(oldLineData.getItemGraphicEl(idx));
        })
        .execute();
};

function doAdd(lineDraw, lineData, idx, seriesScope) {
    var itemLayout = lineData.getItemLayout(idx);

    if (!lineNeedsDraw(itemLayout)) {
        return;
    }

    var el = new lineDraw._ctor(lineData, idx, seriesScope);
    lineData.setItemGraphicEl(idx, el);
    lineDraw.group.add(el);
}

function doUpdate(lineDraw, oldLineData, newLineData, oldIdx, newIdx, seriesScope) {
    var itemEl = oldLineData.getItemGraphicEl(oldIdx);

    if (!lineNeedsDraw(newLineData.getItemLayout(newIdx))) {
        lineDraw.group.remove(itemEl);
        return;
    }

    if (!itemEl) {
        itemEl = new lineDraw._ctor(newLineData, newIdx, seriesScope);
    }
    else {
        itemEl.updateData(newLineData, newIdx, seriesScope);
    }

    newLineData.setItemGraphicEl(newIdx, itemEl);

    lineDraw.group.add(itemEl);
}

lineDrawProto.updateLayout = function () {
    var lineData = this._lineData;
    lineData.eachItemGraphicEl(function (el, idx) {
        el.updateLayout(lineData, idx);
    }, this);
};

lineDrawProto.incrementalPrepareUpdate = function (lineData) {
    this._seriesScope = makeSeriesScope$1(lineData);
    this._lineData = null;
    this.group.removeAll();
};

lineDrawProto.incrementalUpdate = function (taskParams, lineData) {
    function updateIncrementalAndHover(el) {
        if (!el.isGroup) {
            el.incremental = el.useHoverLayer = true;
        }
    }

    for (var idx = taskParams.start; idx < taskParams.end; idx++) {
        var itemLayout = lineData.getItemLayout(idx);

        if (lineNeedsDraw(itemLayout)) {
            var el = new this._ctor(lineData, idx, this._seriesScope);
            el.traverse(updateIncrementalAndHover);
            this.group.add(el);
        }
    }
};

function makeSeriesScope$1(lineData) {
    var hostModel = lineData.hostModel;
    return {
        lineStyle: hostModel.getModel('lineStyle').getLineStyle(),
        hoverLineStyle: hostModel.getModel('emphasis.lineStyle').getLineStyle(),
        labelModel: hostModel.getModel('label'),
        hoverLabelModel: hostModel.getModel('emphasis.label')
    };
}

lineDrawProto.remove = function () {
    this._clearIncremental();
    this._incremental = null;
    this.group.removeAll();
};

lineDrawProto._clearIncremental = function () {
    var incremental = this._incremental;
    if (incremental) {
        incremental.clearDisplaybles();
    }
};

function isPointNaN(pt) {
    return isNaN(pt[0]) || isNaN(pt[1]);
}

function lineNeedsDraw(pts) {
    return !isPointNaN(pts[0]) && !isPointNaN(pts[1]);
}

var v1 = [];
var v2 = [];
var v3 = [];
var quadraticAt$1 = quadraticAt;
var v2DistSquare = distSquare;
var mathAbs$1 = Math.abs;
function intersectCurveCircle(curvePoints, center, radius) {
    var p0 = curvePoints[0];
    var p1 = curvePoints[1];
    var p2 = curvePoints[2];

    var d = Infinity;
    var t;
    var radiusSquare = radius * radius;
    var interval = 0.1;

    for (var _t = 0.1; _t <= 0.9; _t += 0.1) {
        v1[0] = quadraticAt$1(p0[0], p1[0], p2[0], _t);
        v1[1] = quadraticAt$1(p0[1], p1[1], p2[1], _t);
        var diff = mathAbs$1(v2DistSquare(v1, center) - radiusSquare);
        if (diff < d) {
            d = diff;
            t = _t;
        }
    }

    // Assume the segment is monotone，Find root through Bisection method
    // At most 32 iteration
    for (var i = 0; i < 32; i++) {
        // var prev = t - interval;
        var next = t + interval;
        // v1[0] = quadraticAt(p0[0], p1[0], p2[0], prev);
        // v1[1] = quadraticAt(p0[1], p1[1], p2[1], prev);
        v2[0] = quadraticAt$1(p0[0], p1[0], p2[0], t);
        v2[1] = quadraticAt$1(p0[1], p1[1], p2[1], t);
        v3[0] = quadraticAt$1(p0[0], p1[0], p2[0], next);
        v3[1] = quadraticAt$1(p0[1], p1[1], p2[1], next);

        var diff = v2DistSquare(v2, center) - radiusSquare;
        if (mathAbs$1(diff) < 1e-2) {
            break;
        }

        // var prevDiff = v2DistSquare(v1, center) - radiusSquare;
        var nextDiff = v2DistSquare(v3, center) - radiusSquare;

        interval /= 2;
        if (diff < 0) {
            if (nextDiff >= 0) {
                t = t + interval;
            }
            else {
                t = t - interval;
            }
        }
        else {
            if (nextDiff >= 0) {
                t = t - interval;
            }
            else {
                t = t + interval;
            }
        }
    }

    return t;
}

// Adjust edge to avoid
var adjustEdge = function (graph, scale$$1) {
    var tmp0 = [];
    var quadraticSubdivide$$1 = quadraticSubdivide;
    var pts = [[], [], []];
    var pts2 = [[], []];
    var v = [];
    scale$$1 /= 2;

    function getSymbolSize(node) {
        var symbolSize = node.getVisual('symbolSize');
        if (symbolSize instanceof Array) {
            symbolSize = (symbolSize[0] + symbolSize[1]) / 2;
        }
        return symbolSize;
    }
    graph.eachEdge(function (edge, idx) {
        var linePoints = edge.getLayout();
        var fromSymbol = edge.getVisual('fromSymbol');
        var toSymbol = edge.getVisual('toSymbol');

        if (!linePoints.__original) {
            linePoints.__original = [
                clone$1(linePoints[0]),
                clone$1(linePoints[1])
            ];
            if (linePoints[2]) {
                linePoints.__original.push(clone$1(linePoints[2]));
            }
        }
        var originalPoints = linePoints.__original;
        // Quadratic curve
        if (linePoints[2] != null) {
            copy(pts[0], originalPoints[0]);
            copy(pts[1], originalPoints[2]);
            copy(pts[2], originalPoints[1]);
            if (fromSymbol && fromSymbol != 'none') {
                var symbolSize = getSymbolSize(edge.node1);

                var t = intersectCurveCircle(pts, originalPoints[0], symbolSize * scale$$1);
                // Subdivide and get the second
                quadraticSubdivide$$1(pts[0][0], pts[1][0], pts[2][0], t, tmp0);
                pts[0][0] = tmp0[3];
                pts[1][0] = tmp0[4];
                quadraticSubdivide$$1(pts[0][1], pts[1][1], pts[2][1], t, tmp0);
                pts[0][1] = tmp0[3];
                pts[1][1] = tmp0[4];
            }
            if (toSymbol && toSymbol != 'none') {
                var symbolSize = getSymbolSize(edge.node2);

                var t = intersectCurveCircle(pts, originalPoints[1], symbolSize * scale$$1);
                // Subdivide and get the first
                quadraticSubdivide$$1(pts[0][0], pts[1][0], pts[2][0], t, tmp0);
                pts[1][0] = tmp0[1];
                pts[2][0] = tmp0[2];
                quadraticSubdivide$$1(pts[0][1], pts[1][1], pts[2][1], t, tmp0);
                pts[1][1] = tmp0[1];
                pts[2][1] = tmp0[2];
            }
            // Copy back to layout
            copy(linePoints[0], pts[0]);
            copy(linePoints[1], pts[2]);
            copy(linePoints[2], pts[1]);
        }
        // Line
        else {
            copy(pts2[0], originalPoints[0]);
            copy(pts2[1], originalPoints[1]);

            sub(v, pts2[1], pts2[0]);
            normalize(v, v);
            if (fromSymbol && fromSymbol != 'none') {

                var symbolSize = getSymbolSize(edge.node1);

                scaleAndAdd(pts2[0], pts2[0], v, symbolSize * scale$$1);
            }
            if (toSymbol && toSymbol != 'none') {
                var symbolSize = getSymbolSize(edge.node2);

                scaleAndAdd(pts2[1], pts2[1], v, -symbolSize * scale$$1);
            }
            copy(linePoints[0], pts2[0]);
            copy(linePoints[1], pts2[1]);
        }
    });
};

var nodeOpacityPath = ['itemStyle', 'opacity'];
var lineOpacityPath = ['lineStyle', 'opacity'];

function getItemOpacity(item, opacityPath) {
    return item.getVisual('opacity') || item.getModel().get(opacityPath);
}

function fadeOutItem(item, opacityPath, opacityRatio) {
    var el = item.getGraphicEl();

    var opacity = getItemOpacity(item, opacityPath);
    if (opacityRatio != null) {
        opacity == null && (opacity = 1);
        opacity *= opacityRatio;
    }

    el.downplay && el.downplay();
    el.traverse(function (child) {
        if (child.type !== 'group') {
            child.setStyle('opacity', opacity);
        }
    });
}

function fadeInItem(item, opacityPath) {
    var opacity = getItemOpacity(item, opacityPath);
    var el = item.getGraphicEl();

    el.highlight && el.highlight();
    el.traverse(function (child) {
        if (child.type !== 'group') {
            child.setStyle('opacity', opacity);
        }
    });
}

extendChartView({

    type: 'graph',

    init: function (ecModel, api) {
        var symbolDraw = new SymbolDraw();
        var lineDraw = new LineDraw();
        var group = this.group;

        this._controller = new RoamController(api.getZr());
        this._controllerHost = {target: group};

        group.add(symbolDraw.group);
        group.add(lineDraw.group);

        this._symbolDraw = symbolDraw;
        this._lineDraw = lineDraw;

        this._firstRender = true;
    },

    render: function (seriesModel, ecModel, api) {
        var coordSys = seriesModel.coordinateSystem;

        this._model = seriesModel;
        this._nodeScaleRatio = seriesModel.get('nodeScaleRatio');

        var symbolDraw = this._symbolDraw;
        var lineDraw = this._lineDraw;

        var group = this.group;

        if (coordSys.type === 'view') {
            var groupNewProp = {
                position: coordSys.position,
                scale: coordSys.scale
            };
            if (this._firstRender) {
                group.attr(groupNewProp);
            }
            else {
                updateProps(group, groupNewProp, seriesModel);
            }
        }
        // Fix edge contact point with node
        adjustEdge(seriesModel.getGraph(), this._getNodeGlobalScale(seriesModel));

        var data = seriesModel.getData();
        symbolDraw.updateData(data);

        var edgeData = seriesModel.getEdgeData();
        lineDraw.updateData(edgeData);

        this._updateNodeAndLinkScale();

        this._updateController(seriesModel, ecModel, api);

        clearTimeout(this._layoutTimeout);
        var forceLayout = seriesModel.forceLayout;
        var layoutAnimation = seriesModel.get('force.layoutAnimation');
        if (forceLayout) {
            this._startForceLayoutIteration(forceLayout, layoutAnimation);
        }

        data.eachItemGraphicEl(function (el, idx) {
            var itemModel = data.getItemModel(idx);
            // Update draggable
            el.off('drag').off('dragend');
            var draggable = data.getItemModel(idx).get('draggable');
            if (draggable) {
                el.on('drag', function () {
                    if (forceLayout) {
                        forceLayout.warmUp();
                        !this._layouting
                            && this._startForceLayoutIteration(forceLayout, layoutAnimation);
                        forceLayout.setFixed(idx);
                        // Write position back to layout
                        data.setItemLayout(idx, el.position);
                    }
                }, this).on('dragend', function () {
                    if (forceLayout) {
                        forceLayout.setUnfixed(idx);
                    }
                }, this);
            }
            el.setDraggable(draggable && forceLayout);

            el.off('mouseover', el.__focusNodeAdjacency);
            el.off('mouseout', el.__unfocusNodeAdjacency);

            if (itemModel.get('focusNodeAdjacency')) {
                el.on('mouseover', el.__focusNodeAdjacency = function () {
                    api.dispatchAction({
                        type: 'focusNodeAdjacency',
                        seriesId: seriesModel.id,
                        dataIndex: el.dataIndex
                    });
                });
                el.on('mouseout', el.__unfocusNodeAdjacency = function () {
                    api.dispatchAction({
                        type: 'unfocusNodeAdjacency',
                        seriesId: seriesModel.id
                    });
                });

            }

        }, this);

        data.graph.eachEdge(function (edge) {
            var el = edge.getGraphicEl();

            el.off('mouseover', el.__focusNodeAdjacency);
            el.off('mouseout', el.__unfocusNodeAdjacency);

            if (edge.getModel().get('focusNodeAdjacency')) {
                el.on('mouseover', el.__focusNodeAdjacency = function () {
                    api.dispatchAction({
                        type: 'focusNodeAdjacency',
                        seriesId: seriesModel.id,
                        edgeDataIndex: edge.dataIndex
                    });
                });
                el.on('mouseout', el.__unfocusNodeAdjacency = function () {
                    api.dispatchAction({
                        type: 'unfocusNodeAdjacency',
                        seriesId: seriesModel.id
                    });
                });
            }
        });

        var circularRotateLabel = seriesModel.get('layout') === 'circular'
            && seriesModel.get('circular.rotateLabel');
        var cx = data.getLayout('cx');
        var cy = data.getLayout('cy');
        data.eachItemGraphicEl(function (el, idx) {
            var symbolPath = el.getSymbolPath();
            if (circularRotateLabel) {
                var pos = data.getItemLayout(idx);
                var rad = Math.atan2(pos[1] - cy, pos[0] - cx);
                if (rad < 0) {
                    rad = Math.PI * 2 + rad;
                }
                var isLeft = pos[0] < cx;
                if (isLeft) {
                    rad = rad - Math.PI;
                }
                var textPosition = isLeft ? 'left' : 'right';
                symbolPath.setStyle({
                    textRotation: -rad,
                    textPosition: textPosition,
                    textOrigin: 'center'
                });
                symbolPath.hoverStyle && (symbolPath.hoverStyle.textPosition = textPosition);
            }
            else {
                symbolPath.setStyle({
                    textRotation: 0
                });
            }
        });

        this._firstRender = false;
    },

    dispose: function () {
        this._controller && this._controller.dispose();
        this._controllerHost = {};
    },

    focusNodeAdjacency: function (seriesModel, ecModel, api, payload) {
        var data = this._model.getData();
        var graph = data.graph;
        var dataIndex = payload.dataIndex;
        var edgeDataIndex = payload.edgeDataIndex;

        var node = graph.getNodeByIndex(dataIndex);
        var edge = graph.getEdgeByIndex(edgeDataIndex);

        if (!node && !edge) {
            return;
        }

        graph.eachNode(function (node) {
            fadeOutItem(node, nodeOpacityPath, 0.1);
        });
        graph.eachEdge(function (edge) {
            fadeOutItem(edge, lineOpacityPath, 0.1);
        });

        if (node) {
            fadeInItem(node, nodeOpacityPath);
            each$1(node.edges, function (adjacentEdge) {
                if (adjacentEdge.dataIndex < 0) {
                    return;
                }
                fadeInItem(adjacentEdge, lineOpacityPath);
                fadeInItem(adjacentEdge.node1, nodeOpacityPath);
                fadeInItem(adjacentEdge.node2, nodeOpacityPath);
            });
        }
        if (edge) {
            fadeInItem(edge, lineOpacityPath);
            fadeInItem(edge.node1, nodeOpacityPath);
            fadeInItem(edge.node2, nodeOpacityPath);
        }
    },

    unfocusNodeAdjacency: function (seriesModel, ecModel, api, payload) {
        var graph = this._model.getData().graph;

        graph.eachNode(function (node) {
            fadeOutItem(node, nodeOpacityPath);
        });
        graph.eachEdge(function (edge) {
            fadeOutItem(edge, lineOpacityPath);
        });
    },

    _startForceLayoutIteration: function (forceLayout, layoutAnimation) {
        var self = this;
        (function step() {
            forceLayout.step(function (stopped) {
                self.updateLayout(self._model);
                (self._layouting = !stopped) && (
                    layoutAnimation
                        ? (self._layoutTimeout = setTimeout(step, 16))
                        : step()
                );
            });
        })();
    },

    _updateController: function (seriesModel, ecModel, api) {
        var controller = this._controller;
        var controllerHost = this._controllerHost;
        var group = this.group;

        controller.setPointerChecker(function (e, x, y) {
            var rect = group.getBoundingRect();
            rect.applyTransform(group.transform);
            return rect.contain(x, y)
                && !onIrrelevantElement(e, api, seriesModel);
        });

        if (seriesModel.coordinateSystem.type !== 'view') {
            controller.disable();
            return;
        }
        controller.enable(seriesModel.get('roam'));
        controllerHost.zoomLimit = seriesModel.get('scaleLimit');
        controllerHost.zoom = seriesModel.coordinateSystem.getZoom();

        controller
            .off('pan')
            .off('zoom')
            .on('pan', function (dx, dy) {
                updateViewOnPan(controllerHost, dx, dy);
                api.dispatchAction({
                    seriesId: seriesModel.id,
                    type: 'graphRoam',
                    dx: dx,
                    dy: dy
                });
            })
            .on('zoom', function (zoom, mouseX, mouseY) {
                updateViewOnZoom(controllerHost, zoom, mouseX, mouseY);
                api.dispatchAction({
                    seriesId: seriesModel.id,
                    type: 'graphRoam',
                    zoom:  zoom,
                    originX: mouseX,
                    originY: mouseY
                });
                this._updateNodeAndLinkScale();
                adjustEdge(seriesModel.getGraph(), this._getNodeGlobalScale(seriesModel));
                this._lineDraw.updateLayout();
            }, this);
    },

    _updateNodeAndLinkScale: function () {
        var seriesModel = this._model;
        var data = seriesModel.getData();

        var nodeScale = this._getNodeGlobalScale(seriesModel);
        var invScale = [nodeScale, nodeScale];

        data.eachItemGraphicEl(function (el, idx) {
            el.attr('scale', invScale);
        });
    },

    _getNodeGlobalScale: function (seriesModel) {
        var coordSys = seriesModel.coordinateSystem;
        if (coordSys.type !== 'view') {
            return 1;
        }

        var nodeScaleRatio = this._nodeScaleRatio;

        var groupScale = coordSys.scale;
        var groupZoom = (groupScale && groupScale[0]) || 1;
        // Scale node when zoom changes
        var roamZoom = coordSys.getZoom();
        var nodeScale = (roamZoom - 1) * nodeScaleRatio + 1;

        return nodeScale / groupZoom;
    },

    updateLayout: function (seriesModel) {
        adjustEdge(seriesModel.getGraph(), this._getNodeGlobalScale(seriesModel));

        this._symbolDraw.updateLayout();
        this._lineDraw.updateLayout();
    },

    remove: function (ecModel, api) {
        this._symbolDraw && this._symbolDraw.remove();
        this._lineDraw && this._lineDraw.remove();
    }
});

var actionInfo = {
    type: 'graphRoam',
    event: 'graphRoam',
    update: 'none'
};

/**
 * @payload
 * @property {string} name Series name
 * @property {number} [dx]
 * @property {number} [dy]
 * @property {number} [zoom]
 * @property {number} [originX]
 * @property {number} [originY]
 */
registerAction(actionInfo, function (payload, ecModel) {
    ecModel.eachComponent({mainType: 'series', query: payload}, function (seriesModel) {
        var coordSys = seriesModel.coordinateSystem;

        var res = updateCenterAndZoom(coordSys, payload);

        seriesModel.setCenter
            && seriesModel.setCenter(res.center);

        seriesModel.setZoom
            && seriesModel.setZoom(res.zoom);
    });
});


/**
 * @payload
 * @property {number} [seriesIndex]
 * @property {string} [seriesId]
 * @property {string} [seriesName]
 * @property {number} [dataIndex]
 */
registerAction({
    type: 'focusNodeAdjacency',
    event: 'focusNodeAdjacency',
    update: 'series.graph:focusNodeAdjacency'
}, function () {});

/**
 * @payload
 * @property {number} [seriesIndex]
 * @property {string} [seriesId]
 * @property {string} [seriesName]
 */
registerAction({
    type: 'unfocusNodeAdjacency',
    event: 'unfocusNodeAdjacency',
    update: 'series.graph:unfocusNodeAdjacency'
}, function () {});

var categoryFilter = function (ecModel) {
    var legendModels = ecModel.findComponents({
        mainType: 'legend'
    });
    if (!legendModels || !legendModels.length) {
        return;
    }
    ecModel.eachSeriesByType('graph', function (graphSeries) {
        var categoriesData = graphSeries.getCategoriesData();
        var graph = graphSeries.getGraph();
        var data = graph.data;

        var categoryNames = categoriesData.mapArray(categoriesData.getName);

        data.filterSelf(function (idx) {
            var model = data.getItemModel(idx);
            var category = model.getShallow('category');
            if (category != null) {
                if (typeof category === 'number') {
                    category = categoryNames[category];
                }
                // If in any legend component the status is not selected.
                for (var i = 0; i < legendModels.length; i++) {
                    if (!legendModels[i].isSelected(category)) {
                        return false;
                    }
                }
            }
            return true;
        });
    }, this);
};

var categoryVisual = function (ecModel) {

    var paletteScope = {};
    ecModel.eachSeriesByType('graph', function (seriesModel) {
        var categoriesData = seriesModel.getCategoriesData();
        var data = seriesModel.getData();

        var categoryNameIdxMap = {};

        categoriesData.each(function (idx) {
            var name = categoriesData.getName(idx);
            // Add prefix to avoid conflict with Object.prototype.
            categoryNameIdxMap['ec-' + name] = idx;

            var itemModel = categoriesData.getItemModel(idx);
            var color = itemModel.get('itemStyle.color')
                || seriesModel.getColorFromPalette(name, paletteScope);
            categoriesData.setItemVisual(idx, 'color', color);
        });

        // Assign category color to visual
        if (categoriesData.count()) {
            data.each(function (idx) {
                var model = data.getItemModel(idx);
                var category = model.getShallow('category');
                if (category != null) {
                    if (typeof category === 'string') {
                        category = categoryNameIdxMap['ec-' + category];
                    }
                    if (!data.getItemVisual(idx, 'color', true)) {
                        data.setItemVisual(
                            idx, 'color',
                            categoriesData.getItemVisual(category, 'color')
                        );
                    }
                }
            });
        }
    });
};

function normalize$1(a) {
    if (!(a instanceof Array)) {
        a = [a, a];
    }
    return a;
}

var edgeVisual = function (ecModel) {
    ecModel.eachSeriesByType('graph', function (seriesModel) {
        var graph = seriesModel.getGraph();
        var edgeData = seriesModel.getEdgeData();
        var symbolType = normalize$1(seriesModel.get('edgeSymbol'));
        var symbolSize = normalize$1(seriesModel.get('edgeSymbolSize'));

        var colorQuery = 'lineStyle.color'.split('.');
        var opacityQuery = 'lineStyle.opacity'.split('.');

        edgeData.setVisual('fromSymbol', symbolType && symbolType[0]);
        edgeData.setVisual('toSymbol', symbolType && symbolType[1]);
        edgeData.setVisual('fromSymbolSize', symbolSize && symbolSize[0]);
        edgeData.setVisual('toSymbolSize', symbolSize && symbolSize[1]);
        edgeData.setVisual('color', seriesModel.get(colorQuery));
        edgeData.setVisual('opacity', seriesModel.get(opacityQuery));

        edgeData.each(function (idx) {
            var itemModel = edgeData.getItemModel(idx);
            var edge = graph.getEdgeByIndex(idx);
            var symbolType = normalize$1(itemModel.getShallow('symbol', true));
            var symbolSize = normalize$1(itemModel.getShallow('symbolSize', true));
            // Edge visual must after node visual
            var color = itemModel.get(colorQuery);
            var opacity = itemModel.get(opacityQuery);
            switch (color) {
                case 'source':
                    color = edge.node1.getVisual('color');
                    break;
                case 'target':
                    color = edge.node2.getVisual('color');
                    break;
            }

            symbolType[0] && edge.setVisual('fromSymbol', symbolType[0]);
            symbolType[1] && edge.setVisual('toSymbol', symbolType[1]);
            symbolSize[0] && edge.setVisual('fromSymbolSize', symbolSize[0]);
            symbolSize[1] && edge.setVisual('toSymbolSize', symbolSize[1]);

            edge.setVisual('color', color);
            edge.setVisual('opacity', opacity);
        });
    });
};

function simpleLayout$1(seriesModel) {
    var coordSys = seriesModel.coordinateSystem;
    if (coordSys && coordSys.type !== 'view') {
        return;
    }
    var graph = seriesModel.getGraph();

    graph.eachNode(function (node) {
        var model = node.getModel();
        node.setLayout([+model.get('x'), +model.get('y')]);
    });

    simpleLayoutEdge(graph);
}

function simpleLayoutEdge(graph) {
    graph.eachEdge(function (edge) {
        var curveness = edge.getModel().get('lineStyle.curveness') || 0;
        var p1 = clone$1(edge.node1.getLayout());
        var p2 = clone$1(edge.node2.getLayout());
        var points = [p1, p2];
        if (+curveness) {
            points.push([
                (p1[0] + p2[0]) / 2 - (p1[1] - p2[1]) * curveness,
                (p1[1] + p2[1]) / 2 - (p2[0] - p1[0]) * curveness
            ]);
        }
        edge.setLayout(points);
    });
}

var simpleLayout = function (ecModel, api) {
    ecModel.eachSeriesByType('graph', function (seriesModel) {
        var layout = seriesModel.get('layout');
        var coordSys = seriesModel.coordinateSystem;
        if (coordSys && coordSys.type !== 'view') {
            var data = seriesModel.getData();

            var dimensions = [];
            each$1(coordSys.dimensions, function (coordDim) {
                dimensions = dimensions.concat(data.mapDimension(coordDim, true));
            });

            for (var dataIndex = 0; dataIndex < data.count(); dataIndex++) {
                var value = [];
                var hasValue = false;
                for (var i = 0; i < dimensions.length; i++) {
                    var val = data.get(dimensions[i], dataIndex);
                    if (!isNaN(val)) {
                        hasValue = true;
                    }
                    value.push(val);
                }
                if (hasValue) {
                    data.setItemLayout(dataIndex, coordSys.dataToPoint(value));
                }
                else {
                    // Also {Array.<number>}, not undefined to avoid if...else... statement
                    data.setItemLayout(dataIndex, [NaN, NaN]);
                }
            }

            simpleLayoutEdge(data.graph);
        }
        else if (!layout || layout === 'none') {
            simpleLayout$1(seriesModel);
        }
    });
};

function circularLayout$1(seriesModel) {
    var coordSys = seriesModel.coordinateSystem;
    if (coordSys && coordSys.type !== 'view') {
        return;
    }

    var rect = coordSys.getBoundingRect();

    var nodeData = seriesModel.getData();
    var graph = nodeData.graph;

    var angle = 0;
    var sum = nodeData.getSum('value');
    var unitAngle = Math.PI * 2 / (sum || nodeData.count());

    var cx = rect.width / 2 + rect.x;
    var cy = rect.height / 2 + rect.y;

    var r = Math.min(rect.width, rect.height) / 2;

    graph.eachNode(function (node) {
        var value = node.getValue('value');

        angle += unitAngle * (sum ? value : 1) / 2;

        node.setLayout([
            r * Math.cos(angle) + cx,
            r * Math.sin(angle) + cy
        ]);

        angle += unitAngle * (sum ? value : 1) / 2;
    });

    nodeData.setLayout({
        cx: cx,
        cy: cy
    });

    graph.eachEdge(function (edge) {
        var curveness = edge.getModel().get('lineStyle.curveness') || 0;
        var p1 = clone$1(edge.node1.getLayout());
        var p2 = clone$1(edge.node2.getLayout());
        var cp1;
        var x12 = (p1[0] + p2[0]) / 2;
        var y12 = (p1[1] + p2[1]) / 2;
        if (+curveness) {
            curveness *= 3;
            cp1 = [
                cx * curveness + x12 * (1 - curveness),
                cy * curveness + y12 * (1 - curveness)
            ];
        }
        edge.setLayout([p1, p2, cp1]);
    });
}

var circularLayout = function (ecModel) {
    ecModel.eachSeriesByType('graph', function (seriesModel) {
        if (seriesModel.get('layout') === 'circular') {
            circularLayout$1(seriesModel);
        }
    });
};

var scaleAndAdd$2 = scaleAndAdd;

// function adjacentNode(n, e) {
//     return e.n1 === n ? e.n2 : e.n1;
// }

function forceLayout$1(nodes, edges, opts) {
    var rect = opts.rect;
    var width = rect.width;
    var height = rect.height;
    var center = [rect.x + width / 2, rect.y + height / 2];
    // var scale = opts.scale || 1;
    var gravity = opts.gravity == null ? 0.1 : opts.gravity;

    // for (var i = 0; i < edges.length; i++) {
    //     var e = edges[i];
    //     var n1 = e.n1;
    //     var n2 = e.n2;
    //     n1.edges = n1.edges || [];
    //     n2.edges = n2.edges || [];
    //     n1.edges.push(e);
    //     n2.edges.push(e);
    // }
    // Init position
    for (var i = 0; i < nodes.length; i++) {
        var n = nodes[i];
        if (!n.p) {
            // Use the position from first adjecent node with defined position
            // Or use a random position
            // From d3
            // if (n.edges) {
            //     var j = -1;
            //     while (++j < n.edges.length) {
            //         var e = n.edges[j];
            //         var other = adjacentNode(n, e);
            //         if (other.p) {
            //             n.p = vec2.clone(other.p);
            //             break;
            //         }
            //     }
            // }
            // if (!n.p) {
                n.p = create(
                    width * (Math.random() - 0.5) + center[0],
                    height * (Math.random() - 0.5) + center[1]
                );
            // }
        }
        n.pp = clone$1(n.p);
        n.edges = null;
    }

    // Formula in 'Graph Drawing by Force-directed Placement'
    // var k = scale * Math.sqrt(width * height / nodes.length);
    // var k2 = k * k;

    var friction = 0.6;

    return {
        warmUp: function () {
            friction = 0.5;
        },

        setFixed: function (idx) {
            nodes[idx].fixed = true;
        },

        setUnfixed: function (idx) {
            nodes[idx].fixed = false;
        },

        step: function (cb) {
            var v12 = [];
            var nLen = nodes.length;
            for (var i = 0; i < edges.length; i++) {
                var e = edges[i];
                var n1 = e.n1;
                var n2 = e.n2;

                sub(v12, n2.p, n1.p);
                var d = len(v12) - e.d;
                var w = n2.w / (n1.w + n2.w);

                if (isNaN(w)) {
                    w = 0;
                }

                normalize(v12, v12);

                !n1.fixed && scaleAndAdd$2(n1.p, n1.p, v12, w * d * friction);
                !n2.fixed && scaleAndAdd$2(n2.p, n2.p, v12, -(1 - w) * d * friction);
            }
            // Gravity
            for (var i = 0; i < nLen; i++) {
                var n = nodes[i];
                if (!n.fixed) {
                    sub(v12, center, n.p);
                    // var d = vec2.len(v12);
                    // vec2.scale(v12, v12, 1 / d);
                    // var gravityFactor = gravity;
                    scaleAndAdd$2(n.p, n.p, v12, gravity * friction);
                }
            }

            // Repulsive
            // PENDING
            for (var i = 0; i < nLen; i++) {
                var n1 = nodes[i];
                for (var j = i + 1; j < nLen; j++) {
                    var n2 = nodes[j];
                    sub(v12, n2.p, n1.p);
                    var d = len(v12);
                    if (d === 0) {
                        // Random repulse
                        set(v12, Math.random() - 0.5, Math.random() - 0.5);
                        d = 1;
                    }
                    var repFact = (n1.rep + n2.rep) / d / d;
                    !n1.fixed && scaleAndAdd$2(n1.pp, n1.pp, v12, repFact);
                    !n2.fixed && scaleAndAdd$2(n2.pp, n2.pp, v12, -repFact);
                }
            }
            var v = [];
            for (var i = 0; i < nLen; i++) {
                var n = nodes[i];
                if (!n.fixed) {
                    sub(v, n.p, n.pp);
                    scaleAndAdd$2(n.p, n.p, v, friction);
                    copy(n.pp, n.p);
                }
            }

            friction = friction * 0.992;

            cb && cb(nodes, edges, friction < 0.01);
        }
    };
}

var forceLayout = function (ecModel) {
    ecModel.eachSeriesByType('graph', function (graphSeries) {
        var coordSys = graphSeries.coordinateSystem;
        if (coordSys && coordSys.type !== 'view') {
            return;
        }
        if (graphSeries.get('layout') === 'force') {
            var preservedPoints = graphSeries.preservedPoints || {};
            var graph = graphSeries.getGraph();
            var nodeData = graph.data;
            var edgeData = graph.edgeData;
            var forceModel = graphSeries.getModel('force');
            var initLayout = forceModel.get('initLayout');
            if (graphSeries.preservedPoints) {
                nodeData.each(function (idx) {
                    var id = nodeData.getId(idx);
                    nodeData.setItemLayout(idx, preservedPoints[id] || [NaN, NaN]);
                });
            }
            else if (!initLayout || initLayout === 'none') {
                simpleLayout$1(graphSeries);
            }
            else if (initLayout === 'circular') {
                circularLayout$1(graphSeries);
            }

            var nodeDataExtent = nodeData.getDataExtent('value');
            var edgeDataExtent = edgeData.getDataExtent('value');
            // var edgeDataExtent = edgeData.getDataExtent('value');
            var repulsion = forceModel.get('repulsion');
            var edgeLength = forceModel.get('edgeLength');
            if (!isArray(repulsion)) {
                repulsion = [repulsion, repulsion];
            }
            if (!isArray(edgeLength)) {
                edgeLength = [edgeLength, edgeLength];
            }
            // Larger value has smaller length
            edgeLength = [edgeLength[1], edgeLength[0]];

            var nodes = nodeData.mapArray('value', function (value, idx) {
                var point = nodeData.getItemLayout(idx);
                var rep = linearMap(value, nodeDataExtent, repulsion);
                if (isNaN(rep)) {
                    rep = (repulsion[0] + repulsion[1]) / 2;
                }
                return {
                    w: rep,
                    rep: rep,
                    fixed: nodeData.getItemModel(idx).get('fixed'),
                    p: (!point || isNaN(point[0]) || isNaN(point[1])) ? null : point
                };
            });
            var edges = edgeData.mapArray('value', function (value, idx) {
                var edge = graph.getEdgeByIndex(idx);
                var d = linearMap(value, edgeDataExtent, edgeLength);
                if (isNaN(d)) {
                    d = (edgeLength[0] + edgeLength[1]) / 2;
                }
                return {
                    n1: nodes[edge.node1.dataIndex],
                    n2: nodes[edge.node2.dataIndex],
                    d: d,
                    curveness: edge.getModel().get('lineStyle.curveness') || 0
                };
            });

            var coordSys = graphSeries.coordinateSystem;
            var rect = coordSys.getBoundingRect();
            var forceInstance = forceLayout$1(nodes, edges, {
                rect: rect,
                gravity: forceModel.get('gravity')
            });
            var oldStep = forceInstance.step;
            forceInstance.step = function (cb) {
                for (var i = 0, l = nodes.length; i < l; i++) {
                    if (nodes[i].fixed) {
                        // Write back to layout instance
                        copy(nodes[i].p, graph.getNodeByIndex(i).getLayout());
                    }
                }
                oldStep(function (nodes, edges, stopped) {
                    for (var i = 0, l = nodes.length; i < l; i++) {
                        if (!nodes[i].fixed) {
                            graph.getNodeByIndex(i).setLayout(nodes[i].p);
                        }
                        preservedPoints[nodeData.getId(i)] = nodes[i].p;
                    }
                    for (var i = 0, l = edges.length; i < l; i++) {
                        var e = edges[i];
                        var edge = graph.getEdgeByIndex(i);
                        var p1 = e.n1.p;
                        var p2 = e.n2.p;
                        var points = edge.getLayout();
                        points = points ? points.slice() : [];
                        points[0] = points[0] || [];
                        points[1] = points[1] || [];
                        copy(points[0], p1);
                        copy(points[1], p2);
                        if (+e.curveness) {
                            points[2] = [
                                (p1[0] + p2[0]) / 2 - (p1[1] - p2[1]) * e.curveness,
                                (p1[1] + p2[1]) / 2 - (p2[0] - p1[0]) * e.curveness
                            ];
                        }
                        edge.setLayout(points);
                    }
                    // Update layout

                    cb && cb(stopped);
                });
            };
            graphSeries.forceLayout = forceInstance;
            graphSeries.preservedPoints = preservedPoints;

            // Step to get the layout
            forceInstance.step();
        }
        else {
            // Remove prev injected forceLayout instance
            graphSeries.forceLayout = null;
        }
    });
};

// FIXME Where to create the simple view coordinate system
function getViewRect$1(seriesModel, api, aspect) {
    var option = seriesModel.getBoxLayoutParams();
    option.aspect = aspect;
    return getLayoutRect(option, {
        width: api.getWidth(),
        height: api.getHeight()
    });
}

var createView = function (ecModel, api) {
    var viewList = [];
    ecModel.eachSeriesByType('graph', function (seriesModel) {
        var coordSysType = seriesModel.get('coordinateSystem');
        if (!coordSysType || coordSysType === 'view') {

            var data = seriesModel.getData();
            var positions = data.mapArray(function (idx) {
                var itemModel = data.getItemModel(idx);
                return [+itemModel.get('x'), +itemModel.get('y')];
            });

            var min = [];
            var max = [];

            fromPoints(positions, min, max);

            // If width or height is 0
            if (max[0] - min[0] === 0) {
                max[0] += 1;
                min[0] -= 1;
            }
            if (max[1] - min[1] === 0) {
                max[1] += 1;
                min[1] -= 1;
            }
            var aspect = (max[0] - min[0]) / (max[1] - min[1]);
            // FIXME If get view rect after data processed?
            var viewRect = getViewRect$1(seriesModel, api, aspect);
            // Position may be NaN, use view rect instead
            if (isNaN(aspect)) {
                min = [viewRect.x, viewRect.y];
                max = [viewRect.x + viewRect.width, viewRect.y + viewRect.height];
            }

            var bbWidth = max[0] - min[0];
            var bbHeight = max[1] - min[1];

            var viewWidth = viewRect.width;
            var viewHeight = viewRect.height;

            var viewCoordSys = seriesModel.coordinateSystem = new View();
            viewCoordSys.zoomLimit = seriesModel.get('scaleLimit');

            viewCoordSys.setBoundingRect(
                min[0], min[1], bbWidth, bbHeight
            );
            viewCoordSys.setViewRect(
                viewRect.x, viewRect.y, viewWidth, viewHeight
            );

            // Update roam info
            viewCoordSys.setCenter(seriesModel.get('center'));
            viewCoordSys.setZoom(seriesModel.get('zoom'));

            viewList.push(viewCoordSys);
        }
    });

    return viewList;
};

registerProcessor(categoryFilter);

registerVisual(visualSymbol('graph', 'circle', null));
registerVisual(categoryVisual);
registerVisual(edgeVisual);

registerLayout(simpleLayout);
registerLayout(circularLayout);
registerLayout(forceLayout);

// Graph view coordinate system
registerCoordinateSystem('graphView', {
    create: createView
});

var GaugeSeries = SeriesModel.extend({

    type: 'series.gauge',

    getInitialData: function (option, ecModel) {
        var dataOpt = option.data || [];
        if (!isArray(dataOpt)) {
            dataOpt = [dataOpt];
        }
        option.data = dataOpt;
        return createListSimply(this, ['value']);
    },

    defaultOption: {
        zlevel: 0,
        z: 2,
        // 默认全局居中
        center: ['50%', '50%'],
        legendHoverLink: true,
        radius: '75%',
        startAngle: 225,
        endAngle: -45,
        clockwise: true,
        // 最小值
        min: 0,
        // 最大值
        max: 100,
        // 分割段数，默认为10
        splitNumber: 10,
        // 坐标轴线
        axisLine: {
            // 默认显示，属性show控制显示与否
            show: true,
            lineStyle: {       // 属性lineStyle控制线条样式
                color: [[0.2, '#91c7ae'], [0.8, '#63869e'], [1, '#c23531']],
                width: 30
            }
        },
        // 分隔线
        splitLine: {
            // 默认显示，属性show控制显示与否
            show: true,
            // 属性length控制线长
            length: 30,
            // 属性lineStyle（详见lineStyle）控制线条样式
            lineStyle: {
                color: '#eee',
                width: 2,
                type: 'solid'
            }
        },
        // 坐标轴小标记
        axisTick: {
            // 属性show控制显示与否，默认不显示
            show: true,
            // 每份split细分多少段
            splitNumber: 5,
            // 属性length控制线长
            length: 8,
            // 属性lineStyle控制线条样式
            lineStyle: {
                color: '#eee',
                width: 1,
                type: 'solid'
            }
        },
        axisLabel: {
            show: true,
            distance: 5,
            // formatter: null,
            color: 'auto'
        },
        pointer: {
            show: true,
            length: '80%',
            width: 8
        },
        itemStyle: {
            color: 'auto'
        },
        title: {
            show: true,
            // x, y，单位px
            offsetCenter: [0, '-40%'],
            // 其余属性默认使用全局文本样式，详见TEXTSTYLE
            color: '#333',
            fontSize: 15
        },
        detail: {
            show: true,
            backgroundColor: 'rgba(0,0,0,0)',
            borderWidth: 0,
            borderColor: '#ccc',
            width: 100,
            height: null, // self-adaption
            padding: [5, 10],
            // x, y，单位px
            offsetCenter: [0, '40%'],
            // formatter: null,
            // 其余属性默认使用全局文本样式，详见TEXTSTYLE
            color: 'auto',
            fontSize: 30
        }
    }
});

var PointerPath = Path.extend({

    type: 'echartsGaugePointer',

    shape: {
        angle: 0,

        width: 10,

        r: 10,

        x: 0,

        y: 0
    },

    buildPath: function (ctx, shape) {
        var mathCos = Math.cos;
        var mathSin = Math.sin;

        var r = shape.r;
        var width = shape.width;
        var angle = shape.angle;
        var x = shape.x - mathCos(angle) * width * (width >= r / 3 ? 1 : 2);
        var y = shape.y - mathSin(angle) * width * (width >= r / 3 ? 1 : 2);

        angle = shape.angle - Math.PI / 2;
        ctx.moveTo(x, y);
        ctx.lineTo(
            shape.x + mathCos(angle) * width,
            shape.y + mathSin(angle) * width
        );
        ctx.lineTo(
            shape.x + mathCos(shape.angle) * r,
            shape.y + mathSin(shape.angle) * r
        );
        ctx.lineTo(
            shape.x - mathCos(angle) * width,
            shape.y - mathSin(angle) * width
        );
        ctx.lineTo(x, y);
        return;
    }
});

function parsePosition(seriesModel, api) {
    var center = seriesModel.get('center');
    var width = api.getWidth();
    var height = api.getHeight();
    var size = Math.min(width, height);
    var cx = parsePercent$1(center[0], api.getWidth());
    var cy = parsePercent$1(center[1], api.getHeight());
    var r = parsePercent$1(seriesModel.get('radius'), size / 2);

    return {
        cx: cx,
        cy: cy,
        r: r
    };
}

function formatLabel(label, labelFormatter) {
    if (labelFormatter) {
        if (typeof labelFormatter === 'string') {
            label = labelFormatter.replace('{value}', label != null ? label : '');
        }
        else if (typeof labelFormatter === 'function') {
            label = labelFormatter(label);
        }
    }

    return label;
}

var PI2$5 = Math.PI * 2;

var GaugeView = Chart.extend({

    type: 'gauge',

    render: function (seriesModel, ecModel, api) {

        this.group.removeAll();

        var colorList = seriesModel.get('axisLine.lineStyle.color');
        var posInfo = parsePosition(seriesModel, api);

        this._renderMain(
            seriesModel, ecModel, api, colorList, posInfo
        );
    },

    dispose: function () {},

    _renderMain: function (seriesModel, ecModel, api, colorList, posInfo) {
        var group = this.group;

        var axisLineModel = seriesModel.getModel('axisLine');
        var lineStyleModel = axisLineModel.getModel('lineStyle');

        var clockwise = seriesModel.get('clockwise');
        var startAngle = -seriesModel.get('startAngle') / 180 * Math.PI;
        var endAngle = -seriesModel.get('endAngle') / 180 * Math.PI;

        var angleRangeSpan = (endAngle - startAngle) % PI2$5;

        var prevEndAngle = startAngle;
        var axisLineWidth = lineStyleModel.get('width');

        for (var i = 0; i < colorList.length; i++) {
            // Clamp
            var percent = Math.min(Math.max(colorList[i][0], 0), 1);
            var endAngle = startAngle + angleRangeSpan * percent;
            var sector = new Sector({
                shape: {
                    startAngle: prevEndAngle,
                    endAngle: endAngle,
                    cx: posInfo.cx,
                    cy: posInfo.cy,
                    clockwise: clockwise,
                    r0: posInfo.r - axisLineWidth,
                    r: posInfo.r
                },
                silent: true
            });

            sector.setStyle({
                fill: colorList[i][1]
            });

            sector.setStyle(lineStyleModel.getLineStyle(
                // Because we use sector to simulate arc
                // so the properties for stroking are useless
                ['color', 'borderWidth', 'borderColor']
            ));

            group.add(sector);

            prevEndAngle = endAngle;
        }

        var getColor = function (percent) {
            // Less than 0
            if (percent <= 0) {
                return colorList[0][1];
            }
            for (var i = 0; i < colorList.length; i++) {
                if (colorList[i][0] >= percent
                    && (i === 0 ? 0 : colorList[i - 1][0]) < percent
                ) {
                    return colorList[i][1];
                }
            }
            // More than 1
            return colorList[i - 1][1];
        };

        if (!clockwise) {
            var tmp = startAngle;
            startAngle = endAngle;
            endAngle = tmp;
        }

        this._renderTicks(
            seriesModel, ecModel, api, getColor, posInfo,
            startAngle, endAngle, clockwise
        );

        this._renderPointer(
            seriesModel, ecModel, api, getColor, posInfo,
            startAngle, endAngle, clockwise
        );

        this._renderTitle(
            seriesModel, ecModel, api, getColor, posInfo
        );
        this._renderDetail(
            seriesModel, ecModel, api, getColor, posInfo
        );
    },

    _renderTicks: function (
        seriesModel, ecModel, api, getColor, posInfo,
        startAngle, endAngle, clockwise
    ) {
        var group = this.group;
        var cx = posInfo.cx;
        var cy = posInfo.cy;
        var r = posInfo.r;

        var minVal = +seriesModel.get('min');
        var maxVal = +seriesModel.get('max');

        var splitLineModel = seriesModel.getModel('splitLine');
        var tickModel = seriesModel.getModel('axisTick');
        var labelModel = seriesModel.getModel('axisLabel');

        var splitNumber = seriesModel.get('splitNumber');
        var subSplitNumber = tickModel.get('splitNumber');

        var splitLineLen = parsePercent$1(
            splitLineModel.get('length'), r
        );
        var tickLen = parsePercent$1(
            tickModel.get('length'), r
        );

        var angle = startAngle;
        var step = (endAngle - startAngle) / splitNumber;
        var subStep = step / subSplitNumber;

        var splitLineStyle = splitLineModel.getModel('lineStyle').getLineStyle();
        var tickLineStyle = tickModel.getModel('lineStyle').getLineStyle();

        for (var i = 0; i <= splitNumber; i++) {
            var unitX = Math.cos(angle);
            var unitY = Math.sin(angle);
            // Split line
            if (splitLineModel.get('show')) {
                var splitLine = new Line({
                    shape: {
                        x1: unitX * r + cx,
                        y1: unitY * r + cy,
                        x2: unitX * (r - splitLineLen) + cx,
                        y2: unitY * (r - splitLineLen) + cy
                    },
                    style: splitLineStyle,
                    silent: true
                });
                if (splitLineStyle.stroke === 'auto') {
                    splitLine.setStyle({
                        stroke: getColor(i / splitNumber)
                    });
                }

                group.add(splitLine);
            }

            // Label
            if (labelModel.get('show')) {
                var label = formatLabel(
                    round$1(i / splitNumber * (maxVal - minVal) + minVal),
                    labelModel.get('formatter')
                );
                var distance = labelModel.get('distance');
                var autoColor = getColor(i / splitNumber);

                group.add(new Text({
                    style: setTextStyle({}, labelModel, {
                        text: label,
                        x: unitX * (r - splitLineLen - distance) + cx,
                        y: unitY * (r - splitLineLen - distance) + cy,
                        textVerticalAlign: unitY < -0.4 ? 'top' : (unitY > 0.4 ? 'bottom' : 'middle'),
                        textAlign: unitX < -0.4 ? 'left' : (unitX > 0.4 ? 'right' : 'center')
                    }, {autoColor: autoColor}),
                    silent: true
                }));
            }

            // Axis tick
            if (tickModel.get('show') && i !== splitNumber) {
                for (var j = 0; j <= subSplitNumber; j++) {
                    var unitX = Math.cos(angle);
                    var unitY = Math.sin(angle);
                    var tickLine = new Line({
                        shape: {
                            x1: unitX * r + cx,
                            y1: unitY * r + cy,
                            x2: unitX * (r - tickLen) + cx,
                            y2: unitY * (r - tickLen) + cy
                        },
                        silent: true,
                        style: tickLineStyle
                    });

                    if (tickLineStyle.stroke === 'auto') {
                        tickLine.setStyle({
                            stroke: getColor((i + j / subSplitNumber) / splitNumber)
                        });
                    }

                    group.add(tickLine);
                    angle += subStep;
                }
                angle -= subStep;
            }
            else {
                angle += step;
            }
        }
    },

    _renderPointer: function (
        seriesModel, ecModel, api, getColor, posInfo,
        startAngle, endAngle, clockwise
    ) {

        var group = this.group;
        var oldData = this._data;

        if (!seriesModel.get('pointer.show')) {
            // Remove old element
            oldData && oldData.eachItemGraphicEl(function (el) {
                group.remove(el);
            });
            return;
        }

        var valueExtent = [+seriesModel.get('min'), +seriesModel.get('max')];
        var angleExtent = [startAngle, endAngle];

        var data = seriesModel.getData();
        var valueDim = data.mapDimension('value');

        data.diff(oldData)
            .add(function (idx) {
                var pointer = new PointerPath({
                    shape: {
                        angle: startAngle
                    }
                });

                initProps(pointer, {
                    shape: {
                        angle: linearMap(data.get(valueDim, idx), valueExtent, angleExtent, true)
                    }
                }, seriesModel);

                group.add(pointer);
                data.setItemGraphicEl(idx, pointer);
            })
            .update(function (newIdx, oldIdx) {
                var pointer = oldData.getItemGraphicEl(oldIdx);

                updateProps(pointer, {
                    shape: {
                        angle: linearMap(data.get(valueDim, newIdx), valueExtent, angleExtent, true)
                    }
                }, seriesModel);

                group.add(pointer);
                data.setItemGraphicEl(newIdx, pointer);
            })
            .remove(function (idx) {
                var pointer = oldData.getItemGraphicEl(idx);
                group.remove(pointer);
            })
            .execute();

        data.eachItemGraphicEl(function (pointer, idx) {
            var itemModel = data.getItemModel(idx);
            var pointerModel = itemModel.getModel('pointer');

            pointer.setShape({
                x: posInfo.cx,
                y: posInfo.cy,
                width: parsePercent$1(
                    pointerModel.get('width'), posInfo.r
                ),
                r: parsePercent$1(pointerModel.get('length'), posInfo.r)
            });

            pointer.useStyle(itemModel.getModel('itemStyle').getItemStyle());

            if (pointer.style.fill === 'auto') {
                pointer.setStyle('fill', getColor(
                    linearMap(data.get(valueDim, idx), valueExtent, [0, 1], true)
                ));
            }

            setHoverStyle(
                pointer, itemModel.getModel('emphasis.itemStyle').getItemStyle()
            );
        });

        this._data = data;
    },

    _renderTitle: function (
        seriesModel, ecModel, api, getColor, posInfo
    ) {
        var data = seriesModel.getData();
        var valueDim = data.mapDimension('value');
        var titleModel = seriesModel.getModel('title');
        if (titleModel.get('show')) {
            var offsetCenter = titleModel.get('offsetCenter');
            var x = posInfo.cx + parsePercent$1(offsetCenter[0], posInfo.r);
            var y = posInfo.cy + parsePercent$1(offsetCenter[1], posInfo.r);

            var minVal = +seriesModel.get('min');
            var maxVal = +seriesModel.get('max');
            var value = seriesModel.getData().get(valueDim, 0);
            var autoColor = getColor(
                linearMap(value, [minVal, maxVal], [0, 1], true)
            );

            this.group.add(new Text({
                silent: true,
                style: setTextStyle({}, titleModel, {
                    x: x,
                    y: y,
                    // FIXME First data name ?
                    text: data.getName(0),
                    textAlign: 'center',
                    textVerticalAlign: 'middle'
                }, {autoColor: autoColor, forceRich: true})
            }));
        }
    },

    _renderDetail: function (
        seriesModel, ecModel, api, getColor, posInfo
    ) {
        var detailModel = seriesModel.getModel('detail');
        var minVal = +seriesModel.get('min');
        var maxVal = +seriesModel.get('max');
        if (detailModel.get('show')) {
            var offsetCenter = detailModel.get('offsetCenter');
            var x = posInfo.cx + parsePercent$1(offsetCenter[0], posInfo.r);
            var y = posInfo.cy + parsePercent$1(offsetCenter[1], posInfo.r);
            var width = parsePercent$1(detailModel.get('width'), posInfo.r);
            var height = parsePercent$1(detailModel.get('height'), posInfo.r);
            var data = seriesModel.getData();
            var value = data.get(data.mapDimension('value'), 0);
            var autoColor = getColor(
                linearMap(value, [minVal, maxVal], [0, 1], true)
            );

            this.group.add(new Text({
                silent: true,
                style: setTextStyle({}, detailModel, {
                    x: x,
                    y: y,
                    text: formatLabel(
                        // FIXME First data name ?
                        value, detailModel.get('formatter')
                    ),
                    textWidth: isNaN(width) ? null : width,
                    textHeight: isNaN(height) ? null : height,
                    textAlign: 'center',
                    textVerticalAlign: 'middle'
                }, {autoColor: autoColor, forceRich: true})
            }));
        }
    }
});

var FunnelSeries = extendSeriesModel({

    type: 'series.funnel',

    init: function (option) {
        FunnelSeries.superApply(this, 'init', arguments);

        // Enable legend selection for each data item
        // Use a function instead of direct access because data reference may changed
        this.legendDataProvider = function () {
            return this.getRawData();
        };
        // Extend labelLine emphasis
        this._defaultLabelLine(option);
    },

    getInitialData: function (option, ecModel) {
        return createListSimply(this, ['value']);
    },

    _defaultLabelLine: function (option) {
        // Extend labelLine emphasis
        defaultEmphasis(option, 'labelLine', ['show']);

        var labelLineNormalOpt = option.labelLine;
        var labelLineEmphasisOpt = option.emphasis.labelLine;
        // Not show label line if `label.normal.show = false`
        labelLineNormalOpt.show = labelLineNormalOpt.show
            && option.label.show;
        labelLineEmphasisOpt.show = labelLineEmphasisOpt.show
            && option.emphasis.label.show;
    },

    // Overwrite
    getDataParams: function (dataIndex) {
        var data = this.getData();
        var params = FunnelSeries.superCall(this, 'getDataParams', dataIndex);
        var valueDim = data.mapDimension('value');
        var sum = data.getSum(valueDim);
        // Percent is 0 if sum is 0
        params.percent = !sum ? 0 : +(data.get(valueDim, dataIndex) / sum * 100).toFixed(2);

        params.$vars.push('percent');
        return params;
    },

    defaultOption: {
        zlevel: 0,                  // 一级层叠
        z: 2,                       // 二级层叠
        legendHoverLink: true,
        left: 80,
        top: 60,
        right: 80,
        bottom: 60,
        // width: {totalWidth} - left - right,
        // height: {totalHeight} - top - bottom,

        // 默认取数据最小最大值
        // min: 0,
        // max: 100,
        minSize: '0%',
        maxSize: '100%',
        sort: 'descending', // 'ascending', 'descending'
        gap: 0,
        funnelAlign: 'center',
        label: {
            show: true,
            position: 'outer'
            // formatter: 标签文本格式器，同Tooltip.formatter，不支持异步回调
        },
        labelLine: {
            show: true,
            length: 20,
            lineStyle: {
                // color: 各异,
                width: 1,
                type: 'solid'
            }
        },
        itemStyle: {
            // color: 各异,
            borderColor: '#fff',
            borderWidth: 1
        },
        emphasis: {
            label: {
                show: true
            }
        }
    }
});

/**
 * Piece of pie including Sector, Label, LabelLine
 * @constructor
 * @extends {module:zrender/graphic/Group}
 */
function FunnelPiece(data, idx) {

    Group.call(this);

    var polygon = new Polygon();
    var labelLine = new Polyline();
    var text = new Text();
    this.add(polygon);
    this.add(labelLine);
    this.add(text);

    this.updateData(data, idx, true);

    // Hover to change label and labelLine
    function onEmphasis() {
        labelLine.ignore = labelLine.hoverIgnore;
        text.ignore = text.hoverIgnore;
    }
    function onNormal() {
        labelLine.ignore = labelLine.normalIgnore;
        text.ignore = text.normalIgnore;
    }
    this.on('emphasis', onEmphasis)
        .on('normal', onNormal)
        .on('mouseover', onEmphasis)
        .on('mouseout', onNormal);
}

var funnelPieceProto = FunnelPiece.prototype;

var opacityAccessPath = ['itemStyle', 'opacity'];
funnelPieceProto.updateData = function (data, idx, firstCreate) {

    var polygon = this.childAt(0);

    var seriesModel = data.hostModel;
    var itemModel = data.getItemModel(idx);
    var layout = data.getItemLayout(idx);
    var opacity = data.getItemModel(idx).get(opacityAccessPath);
    opacity = opacity == null ? 1 : opacity;

    // Reset style
    polygon.useStyle({});

    if (firstCreate) {
        polygon.setShape({
            points: layout.points
        });
        polygon.setStyle({ opacity : 0 });
        initProps(polygon, {
            style: {
                opacity: opacity
            }
        }, seriesModel, idx);
    }
    else {
        updateProps(polygon, {
            style: {
                opacity: opacity
            },
            shape: {
                points: layout.points
            }
        }, seriesModel, idx);
    }

    // Update common style
    var itemStyleModel = itemModel.getModel('itemStyle');
    var visualColor = data.getItemVisual(idx, 'color');

    polygon.setStyle(
        defaults(
            {
                lineJoin: 'round',
                fill: visualColor
            },
            itemStyleModel.getItemStyle(['opacity'])
        )
    );
    polygon.hoverStyle = itemStyleModel.getModel('emphasis').getItemStyle();

    this._updateLabel(data, idx);

    setHoverStyle(this);
};

funnelPieceProto._updateLabel = function (data, idx) {

    var labelLine = this.childAt(1);
    var labelText = this.childAt(2);

    var seriesModel = data.hostModel;
    var itemModel = data.getItemModel(idx);
    var layout = data.getItemLayout(idx);
    var labelLayout = layout.label;
    var visualColor = data.getItemVisual(idx, 'color');

    updateProps(labelLine, {
        shape: {
            points: labelLayout.linePoints || labelLayout.linePoints
        }
    }, seriesModel, idx);

    updateProps(labelText, {
        style: {
            x: labelLayout.x,
            y: labelLayout.y
        }
    }, seriesModel, idx);
    labelText.attr({
        rotation: labelLayout.rotation,
        origin: [labelLayout.x, labelLayout.y],
        z2: 10
    });

    var labelModel = itemModel.getModel('label');
    var labelHoverModel = itemModel.getModel('emphasis.label');
    var labelLineModel = itemModel.getModel('labelLine');
    var labelLineHoverModel = itemModel.getModel('emphasis.labelLine');
    var visualColor = data.getItemVisual(idx, 'color');

    setLabelStyle(
        labelText.style, labelText.hoverStyle = {}, labelModel, labelHoverModel,
        {
            labelFetcher: data.hostModel,
            labelDataIndex: idx,
            defaultText: data.getName(idx),
            autoColor: visualColor,
            useInsideStyle: !!labelLayout.inside
        },
        {
            textAlign: labelLayout.textAlign,
            textVerticalAlign: labelLayout.verticalAlign
        }
    );

    labelText.ignore = labelText.normalIgnore = !labelModel.get('show');
    labelText.hoverIgnore = !labelHoverModel.get('show');

    labelLine.ignore = labelLine.normalIgnore = !labelLineModel.get('show');
    labelLine.hoverIgnore = !labelLineHoverModel.get('show');

    // Default use item visual color
    labelLine.setStyle({
        stroke: visualColor
    });
    labelLine.setStyle(labelLineModel.getModel('lineStyle').getLineStyle());

    labelLine.hoverStyle = labelLineHoverModel.getModel('lineStyle').getLineStyle();
};

inherits(FunnelPiece, Group);


var FunnelView = Chart.extend({

    type: 'funnel',

    render: function (seriesModel, ecModel, api) {
        var data = seriesModel.getData();
        var oldData = this._data;

        var group = this.group;

        data.diff(oldData)
            .add(function (idx) {
                var funnelPiece = new FunnelPiece(data, idx);

                data.setItemGraphicEl(idx, funnelPiece);

                group.add(funnelPiece);
            })
            .update(function (newIdx, oldIdx) {
                var piePiece = oldData.getItemGraphicEl(oldIdx);

                piePiece.updateData(data, newIdx);

                group.add(piePiece);
                data.setItemGraphicEl(newIdx, piePiece);
            })
            .remove(function (idx) {
                var piePiece = oldData.getItemGraphicEl(idx);
                group.remove(piePiece);
            })
            .execute();

        this._data = data;
    },

    remove: function () {
        this.group.removeAll();
        this._data = null;
    },

    dispose: function () {}
});

function getViewRect$2(seriesModel, api) {
    return getLayoutRect(
        seriesModel.getBoxLayoutParams(), {
            width: api.getWidth(),
            height: api.getHeight()
        }
    );
}

function getSortedIndices(data, sort) {
    var valueDim = data.mapDimension('value');
    var valueArr = data.mapArray(valueDim, function (val) {
        return val;
    });
    var indices = [];
    var isAscending = sort === 'ascending';
    for (var i = 0, len = data.count(); i < len; i++) {
        indices[i] = i;
    }

    // Add custom sortable function & none sortable opetion by "options.sort"
    if (typeof sort === 'function') {
        indices.sort(sort);
    } else if (sort !== 'none') {
        indices.sort(function (a, b) {
            return isAscending ? valueArr[a] - valueArr[b] : valueArr[b] - valueArr[a];
        });
    }
    return indices;
}

function labelLayout$1(data) {
    data.each(function (idx) {
        var itemModel = data.getItemModel(idx);
        var labelModel = itemModel.getModel('label');
        var labelPosition = labelModel.get('position');

        var labelLineModel = itemModel.getModel('labelLine');

        var layout = data.getItemLayout(idx);
        var points = layout.points;

        var isLabelInside = labelPosition === 'inner'
            || labelPosition === 'inside' || labelPosition === 'center';

        var textAlign;
        var textX;
        var textY;
        var linePoints;

        if (isLabelInside) {
            textX = (points[0][0] + points[1][0] + points[2][0] + points[3][0]) / 4;
            textY = (points[0][1] + points[1][1] + points[2][1] + points[3][1]) / 4;
            textAlign = 'center';
            linePoints = [
                [textX, textY], [textX, textY]
            ];
        }
        else {
            var x1;
            var y1;
            var x2;
            var labelLineLen = labelLineModel.get('length');
            if (labelPosition === 'left') {
                // Left side
                x1 = (points[3][0] + points[0][0]) / 2;
                y1 = (points[3][1] + points[0][1]) / 2;
                x2 = x1 - labelLineLen;
                textX = x2 - 5;
                textAlign = 'right';
            }
            else {
                // Right side
                x1 = (points[1][0] + points[2][0]) / 2;
                y1 = (points[1][1] + points[2][1]) / 2;
                x2 = x1 + labelLineLen;
                textX = x2 + 5;
                textAlign = 'left';
            }
            var y2 = y1;

            linePoints = [[x1, y1], [x2, y2]];
            textY = y2;
        }

        layout.label = {
            linePoints: linePoints,
            x: textX,
            y: textY,
            verticalAlign: 'middle',
            textAlign: textAlign,
            inside: isLabelInside
        };
    });
}

var funnelLayout = function (ecModel, api, payload) {
    ecModel.eachSeriesByType('funnel', function (seriesModel) {
        var data = seriesModel.getData();
        var valueDim = data.mapDimension('value');
        var sort = seriesModel.get('sort');
        var viewRect = getViewRect$2(seriesModel, api);
        var indices = getSortedIndices(data, sort);

        var sizeExtent = [
            parsePercent$1(seriesModel.get('minSize'), viewRect.width),
            parsePercent$1(seriesModel.get('maxSize'), viewRect.width)
        ];
        var dataExtent = data.getDataExtent(valueDim);
        var min = seriesModel.get('min');
        var max = seriesModel.get('max');
        if (min == null) {
            min = Math.min(dataExtent[0], 0);
        }
        if (max == null) {
            max = dataExtent[1];
        }

        var funnelAlign = seriesModel.get('funnelAlign');
        var gap = seriesModel.get('gap');
        var itemHeight = (viewRect.height - gap * (data.count() - 1)) / data.count();

        var y = viewRect.y;

        var getLinePoints = function (idx, offY) {
            // End point index is data.count() and we assign it 0
            var val = data.get(valueDim, idx) || 0;
            var itemWidth = linearMap(val, [min, max], sizeExtent, true);
            var x0;
            switch (funnelAlign) {
                case 'left':
                    x0 = viewRect.x;
                    break;
                case 'center':
                    x0 = viewRect.x + (viewRect.width - itemWidth) / 2;
                    break;
                case 'right':
                    x0 = viewRect.x + viewRect.width - itemWidth;
                    break;
            }
            return [
                [x0, offY],
                [x0 + itemWidth, offY]
            ];
        };

        if (sort === 'ascending') {
            // From bottom to top
            itemHeight = -itemHeight;
            gap = -gap;
            y += viewRect.height;
            indices = indices.reverse();
        }

        for (var i = 0; i < indices.length; i++) {
            var idx = indices[i];
            var nextIdx = indices[i + 1];

            var itemModel = data.getItemModel(idx);
            var height = itemModel.get('itemStyle.height');
            if (height == null) {
                height = itemHeight;
            }
            else {
                height = parsePercent$1(height, viewRect.height);
                if (sort === 'ascending') {
                    height = -height;
                }
            }

            var start = getLinePoints(idx, y);
            var end = getLinePoints(nextIdx, y + height);

            y += height + gap;

            data.setItemLayout(idx, {
                points: start.concat(end.slice().reverse())
            });
        }

        labelLayout$1(data);
    });
};

registerVisual(dataColor('funnel'));
registerLayout(funnelLayout);
registerProcessor(dataFilter('funnel'));

var parallelPreprocessor = function (option) {
    createParallelIfNeeded(option);
    mergeAxisOptionFromParallel(option);
};

/**
 * Create a parallel coordinate if not exists.
 * @inner
 */
function createParallelIfNeeded(option) {
    if (option.parallel) {
        return;
    }

    var hasParallelSeries = false;

    each$1(option.series, function (seriesOpt) {
        if (seriesOpt && seriesOpt.type === 'parallel') {
            hasParallelSeries = true;
        }
    });

    if (hasParallelSeries) {
        option.parallel = [{}];
    }
}

/**
 * Merge aixs definition from parallel option (if exists) to axis option.
 * @inner
 */
function mergeAxisOptionFromParallel(option) {
    var axes = normalizeToArray(option.parallelAxis);

    each$1(axes, function (axisOption) {
        if (!isObject$1(axisOption)) {
            return;
        }

        var parallelIndex = axisOption.parallelIndex || 0;
        var parallelOption = normalizeToArray(option.parallel)[parallelIndex];

        if (parallelOption && parallelOption.parallelAxisDefault) {
            merge(axisOption, parallelOption.parallelAxisDefault, false);
        }
    });
}

/**
 * @constructor module:echarts/coord/parallel/ParallelAxis
 * @extends {module:echarts/coord/Axis}
 * @param {string} dim
 * @param {*} scale
 * @param {Array.<number>} coordExtent
 * @param {string} axisType
 */
var ParallelAxis = function (dim, scale, coordExtent, axisType, axisIndex) {

    Axis.call(this, dim, scale, coordExtent);

    /**
     * Axis type
     *  - 'category'
     *  - 'value'
     *  - 'time'
     *  - 'log'
     * @type {string}
     */
    this.type = axisType || 'value';

    /**
     * @type {number}
     * @readOnly
     */
    this.axisIndex = axisIndex;
};

ParallelAxis.prototype = {

    constructor: ParallelAxis,

    /**
     * Axis model
     * @param {module:echarts/coord/parallel/AxisModel}
     */
    model: null,

    /**
     * @override
     */
    isHorizontal: function () {
        return this.coordinateSystem.getModel().get('layout') !== 'horizontal';
    }

};

inherits(ParallelAxis, Axis);

/**
 * Calculate slider move result.
 * Usage:
 * (1) If both handle0 and handle1 are needed to be moved, set minSpan the same as
 * maxSpan and the same as `Math.abs(handleEnd[1] - handleEnds[0])`.
 * (2) If handle0 is forbidden to cross handle1, set minSpan as `0`.
 *
 * @param {number} delta Move length.
 * @param {Array.<number>} handleEnds handleEnds[0] can be bigger then handleEnds[1].
 *              handleEnds will be modified in this method.
 * @param {Array.<number>} extent handleEnds is restricted by extent.
 *              extent[0] should less or equals than extent[1].
 * @param {number|string} handleIndex Can be 'all', means that both move the two handleEnds,
 *              where the input minSpan and maxSpan will not work.
 * @param {number} [minSpan] The range of dataZoom can not be smaller than that.
 *              If not set, handle0 and cross handle1. If set as a non-negative
 *              number (including `0`), handles will push each other when reaching
 *              the minSpan.
 * @param {number} [maxSpan] The range of dataZoom can not be larger than that.
 * @return {Array.<number>} The input handleEnds.
 */
var sliderMove = function (delta, handleEnds, extent, handleIndex, minSpan, maxSpan) {
    // Normalize firstly.
    handleEnds[0] = restrict$1(handleEnds[0], extent);
    handleEnds[1] = restrict$1(handleEnds[1], extent);

    delta = delta || 0;

    var extentSpan = extent[1] - extent[0];

    // Notice maxSpan and minSpan can be null/undefined.
    if (minSpan != null) {
        minSpan = restrict$1(minSpan, [0, extentSpan]);
    }
    if (maxSpan != null) {
        maxSpan = Math.max(maxSpan, minSpan != null ? minSpan : 0);
    }
    if (handleIndex === 'all') {
        minSpan = maxSpan = Math.abs(handleEnds[1] - handleEnds[0]);
        handleIndex = 0;
    }

    var originalDistSign = getSpanSign(handleEnds, handleIndex);

    handleEnds[handleIndex] += delta;

    // Restrict in extent.
    var extentMinSpan = minSpan || 0;
    var realExtent = extent.slice();
    originalDistSign.sign < 0 ? (realExtent[0] += extentMinSpan) : (realExtent[1] -= extentMinSpan);
    handleEnds[handleIndex] = restrict$1(handleEnds[handleIndex], realExtent);

    // Expand span.
    var currDistSign = getSpanSign(handleEnds, handleIndex);
    if (minSpan != null && (
        currDistSign.sign !== originalDistSign.sign || currDistSign.span < minSpan
    )) {
        // If minSpan exists, 'cross' is forbinden.
        handleEnds[1 - handleIndex] = handleEnds[handleIndex] + originalDistSign.sign * minSpan;
    }

    // Shrink span.
    var currDistSign = getSpanSign(handleEnds, handleIndex);
    if (maxSpan != null && currDistSign.span > maxSpan) {
        handleEnds[1 - handleIndex] = handleEnds[handleIndex] + currDistSign.sign * maxSpan;
    }

    return handleEnds;
};

function getSpanSign(handleEnds, handleIndex) {
    var dist = handleEnds[handleIndex] - handleEnds[1 - handleIndex];
    // If `handleEnds[0] === handleEnds[1]`, always believe that handleEnd[0]
    // is at left of handleEnds[1] for non-cross case.
    return {span: Math.abs(dist), sign: dist > 0 ? -1 : dist < 0 ? 1 : handleIndex ? -1 : 1};
}

function restrict$1(value, extend) {
    return Math.min(extend[1], Math.max(extend[0], value));
}

/**
 * Parallel Coordinates
 * <https://en.wikipedia.org/wiki/Parallel_coordinates>
 */

var each$12 = each$1;
var mathMin$5 = Math.min;
var mathMax$5 = Math.max;
var mathFloor$2 = Math.floor;
var mathCeil$2 = Math.ceil;
var round$2 = round$1;

var PI$3 = Math.PI;

function Parallel(parallelModel, ecModel, api) {

    /**
     * key: dimension
     * @type {Object.<string, module:echarts/coord/parallel/Axis>}
     * @private
     */
    this._axesMap = createHashMap();

    /**
     * key: dimension
     * value: {position: [], rotation, }
     * @type {Object.<string, Object>}
     * @private
     */
    this._axesLayout = {};

    /**
     * Always follow axis order.
     * @type {Array.<string>}
     * @readOnly
     */
    this.dimensions = parallelModel.dimensions;

    /**
     * @type {module:zrender/core/BoundingRect}
     */
    this._rect;

    /**
     * @type {module:echarts/coord/parallel/ParallelModel}
     */
    this._model = parallelModel;

    this._init(parallelModel, ecModel, api);
}

Parallel.prototype = {

    type: 'parallel',

    constructor: Parallel,

    /**
     * Initialize cartesian coordinate systems
     * @private
     */
    _init: function (parallelModel, ecModel, api) {

        var dimensions = parallelModel.dimensions;
        var parallelAxisIndex = parallelModel.parallelAxisIndex;

        each$12(dimensions, function (dim, idx) {

            var axisIndex = parallelAxisIndex[idx];
            var axisModel = ecModel.getComponent('parallelAxis', axisIndex);

            var axis = this._axesMap.set(dim, new ParallelAxis(
                dim,
                createScaleByModel(axisModel),
                [0, 0],
                axisModel.get('type'),
                axisIndex
            ));

            var isCategory = axis.type === 'category';
            axis.onBand = isCategory && axisModel.get('boundaryGap');
            axis.inverse = axisModel.get('inverse');

            // Injection
            axisModel.axis = axis;
            axis.model = axisModel;
            axis.coordinateSystem = axisModel.coordinateSystem = this;

        }, this);
    },

    /**
     * Update axis scale after data processed
     * @param  {module:echarts/model/Global} ecModel
     * @param  {module:echarts/ExtensionAPI} api
     */
    update: function (ecModel, api) {
        this._updateAxesFromSeries(this._model, ecModel);
    },

    /**
     * @override
     */
    containPoint: function (point) {
        var layoutInfo = this._makeLayoutInfo();
        var axisBase = layoutInfo.axisBase;
        var layoutBase = layoutInfo.layoutBase;
        var pixelDimIndex = layoutInfo.pixelDimIndex;
        var pAxis = point[1 - pixelDimIndex];
        var pLayout = point[pixelDimIndex];

        return pAxis >= axisBase
            && pAxis <= axisBase + layoutInfo.axisLength
            && pLayout >= layoutBase
            && pLayout <= layoutBase + layoutInfo.layoutLength;
    },

    getModel: function () {
        return this._model;
    },

    /**
     * Update properties from series
     * @private
     */
    _updateAxesFromSeries: function (parallelModel, ecModel) {
        ecModel.eachSeries(function (seriesModel) {

            if (!parallelModel.contains(seriesModel, ecModel)) {
                return;
            }

            var data = seriesModel.getData();

            each$12(this.dimensions, function (dim) {
                var axis = this._axesMap.get(dim);
                axis.scale.unionExtentFromData(data, data.mapDimension(dim));
                niceScaleExtent(axis.scale, axis.model);
            }, this);
        }, this);
    },

    /**
     * Resize the parallel coordinate system.
     * @param {module:echarts/coord/parallel/ParallelModel} parallelModel
     * @param {module:echarts/ExtensionAPI} api
     */
    resize: function (parallelModel, api) {
        this._rect = getLayoutRect(
            parallelModel.getBoxLayoutParams(),
            {
                width: api.getWidth(),
                height: api.getHeight()
            }
        );

        this._layoutAxes();
    },

    /**
     * @return {module:zrender/core/BoundingRect}
     */
    getRect: function () {
        return this._rect;
    },

    /**
     * @private
     */
    _makeLayoutInfo: function () {
        var parallelModel = this._model;
        var rect = this._rect;
        var xy = ['x', 'y'];
        var wh = ['width', 'height'];
        var layout = parallelModel.get('layout');
        var pixelDimIndex = layout === 'horizontal' ? 0 : 1;
        var layoutLength = rect[wh[pixelDimIndex]];
        var layoutExtent = [0, layoutLength];
        var axisCount = this.dimensions.length;

        var axisExpandWidth = restrict(parallelModel.get('axisExpandWidth'), layoutExtent);
        var axisExpandCount = restrict(parallelModel.get('axisExpandCount') || 0, [0, axisCount]);
        var axisExpandable = parallelModel.get('axisExpandable')
            && axisCount > 3
            && axisCount > axisExpandCount
            && axisExpandCount > 1
            && axisExpandWidth > 0
            && layoutLength > 0;

        // `axisExpandWindow` is According to the coordinates of [0, axisExpandLength],
        // for sake of consider the case that axisCollapseWidth is 0 (when screen is narrow),
        // where collapsed axes should be overlapped.
        var axisExpandWindow = parallelModel.get('axisExpandWindow');
        var winSize;
        if (!axisExpandWindow) {
            winSize = restrict(axisExpandWidth * (axisExpandCount - 1), layoutExtent);
            var axisExpandCenter = parallelModel.get('axisExpandCenter') || mathFloor$2(axisCount / 2);
            axisExpandWindow = [axisExpandWidth * axisExpandCenter - winSize / 2];
            axisExpandWindow[1] = axisExpandWindow[0] + winSize;
        }
        else {
                winSize = restrict(axisExpandWindow[1] - axisExpandWindow[0], layoutExtent);
                axisExpandWindow[1] = axisExpandWindow[0] + winSize;
        }

        var axisCollapseWidth = (layoutLength - winSize) / (axisCount - axisExpandCount);
        // Avoid axisCollapseWidth is too small.
        axisCollapseWidth < 3 && (axisCollapseWidth = 0);

        // Find the first and last indices > ewin[0] and < ewin[1].
        var winInnerIndices = [
            mathFloor$2(round$2(axisExpandWindow[0] / axisExpandWidth, 1)) + 1,
            mathCeil$2(round$2(axisExpandWindow[1] / axisExpandWidth, 1)) - 1
        ];

        // Pos in ec coordinates.
        var axisExpandWindow0Pos = axisCollapseWidth / axisExpandWidth * axisExpandWindow[0];

        return {
            layout: layout,
            pixelDimIndex: pixelDimIndex,
            layoutBase: rect[xy[pixelDimIndex]],
            layoutLength: layoutLength,
            axisBase: rect[xy[1 - pixelDimIndex]],
            axisLength: rect[wh[1 - pixelDimIndex]],
            axisExpandable: axisExpandable,
            axisExpandWidth: axisExpandWidth,
            axisCollapseWidth: axisCollapseWidth,
            axisExpandWindow: axisExpandWindow,
            axisCount: axisCount,
            winInnerIndices: winInnerIndices,
            axisExpandWindow0Pos: axisExpandWindow0Pos
        };
    },

    /**
     * @private
     */
    _layoutAxes: function () {
        var rect = this._rect;
        var axes = this._axesMap;
        var dimensions = this.dimensions;
        var layoutInfo = this._makeLayoutInfo();
        var layout = layoutInfo.layout;

        axes.each(function (axis) {
            var axisExtent = [0, layoutInfo.axisLength];
            var idx = axis.inverse ? 1 : 0;
            axis.setExtent(axisExtent[idx], axisExtent[1 - idx]);
        });

        each$12(dimensions, function (dim, idx) {
            var posInfo = (layoutInfo.axisExpandable
                ? layoutAxisWithExpand : layoutAxisWithoutExpand
            )(idx, layoutInfo);

            var positionTable = {
                horizontal: {
                    x: posInfo.position,
                    y: layoutInfo.axisLength
                },
                vertical: {
                    x: 0,
                    y: posInfo.position
                }
            };
            var rotationTable = {
                horizontal: PI$3 / 2,
                vertical: 0
            };

            var position = [
                positionTable[layout].x + rect.x,
                positionTable[layout].y + rect.y
            ];

            var rotation = rotationTable[layout];
            var transform = create$1();
            rotate(transform, transform, rotation);
            translate(transform, transform, position);

            // TODO
            // tick等排布信息。

            // TODO
            // 根据axis order 更新 dimensions顺序。

            this._axesLayout[dim] = {
                position: position,
                rotation: rotation,
                transform: transform,
                axisNameAvailableWidth: posInfo.axisNameAvailableWidth,
                axisLabelShow: posInfo.axisLabelShow,
                nameTruncateMaxWidth: posInfo.nameTruncateMaxWidth,
                tickDirection: 1,
                labelDirection: 1,
                labelInterval: axes.get(dim).getLabelInterval()
            };
        }, this);
    },

    /**
     * Get axis by dim.
     * @param {string} dim
     * @return {module:echarts/coord/parallel/ParallelAxis} [description]
     */
    getAxis: function (dim) {
        return this._axesMap.get(dim);
    },

    /**
     * Convert a dim value of a single item of series data to Point.
     * @param {*} value
     * @param {string} dim
     * @return {Array}
     */
    dataToPoint: function (value, dim) {
        return this.axisCoordToPoint(
            this._axesMap.get(dim).dataToCoord(value),
            dim
        );
    },

    /**
     * Travel data for one time, get activeState of each data item.
     * @param {module:echarts/data/List} data
     * @param {Functio} cb param: {string} activeState 'active' or 'inactive' or 'normal'
     *                            {number} dataIndex
     * @param {Object} context
     */
    eachActiveState: function (data, callback, context) {
        var dimensions = this.dimensions;
        var dataDimensions = map(dimensions, function (axisDim) {
            return data.mapDimension(axisDim);
        });
        var axesMap = this._axesMap;
        var hasActiveSet = this.hasAxisBrushed();

        for (var i = 0, len = data.count(); i < len; i++) {
            var values = data.getValues(dataDimensions, i);
            var activeState;

            if (!hasActiveSet) {
                activeState = 'normal';
            }
            else {
                activeState = 'active';
                for (var j = 0, lenj = dimensions.length; j < lenj; j++) {
                    var dimName = dimensions[j];
                    var state = axesMap.get(dimName).model.getActiveState(values[j], j);

                    if (state === 'inactive') {
                        activeState = 'inactive';
                        break;
                    }
                }
            }

            callback.call(context, activeState, i);
        }
    },

    /**
     * Whether has any activeSet.
     * @return {boolean}
     */
    hasAxisBrushed: function () {
        var dimensions = this.dimensions;
        var axesMap = this._axesMap;
        var hasActiveSet = false;

        for (var j = 0, lenj = dimensions.length; j < lenj; j++) {
            if (axesMap.get(dimensions[j]).model.getActiveState() !== 'normal') {
                hasActiveSet = true;
            }
        }

        return hasActiveSet;
    },

    /**
     * Convert coords of each axis to Point.
     *  Return point. For example: [10, 20]
     * @param {Array.<number>} coords
     * @param {string} dim
     * @return {Array.<number>}
     */
    axisCoordToPoint: function (coord, dim) {
        var axisLayout = this._axesLayout[dim];
        return applyTransform$1([coord, 0], axisLayout.transform);
    },

    /**
     * Get axis layout.
     */
    getAxisLayout: function (dim) {
        return clone(this._axesLayout[dim]);
    },

    /**
     * @param {Array.<number>} point
     * @return {Object} {axisExpandWindow, delta, behavior: 'jump' | 'slide' | 'none'}.
     */
    getSlidedAxisExpandWindow: function (point) {
        var layoutInfo = this._makeLayoutInfo();
        var pixelDimIndex = layoutInfo.pixelDimIndex;
        var axisExpandWindow = layoutInfo.axisExpandWindow.slice();
        var winSize = axisExpandWindow[1] - axisExpandWindow[0];
        var extent = [0, layoutInfo.axisExpandWidth * (layoutInfo.axisCount - 1)];

        // Out of the area of coordinate system.
        if (!this.containPoint(point)) {
            return {behavior: 'none', axisExpandWindow: axisExpandWindow};
        }

        // Conver the point from global to expand coordinates.
        var pointCoord = point[pixelDimIndex] - layoutInfo.layoutBase - layoutInfo.axisExpandWindow0Pos;

        // For dragging operation convenience, the window should not be
        // slided when mouse is the center area of the window.
        var delta;
        var behavior = 'slide';
        var axisCollapseWidth = layoutInfo.axisCollapseWidth;
        var triggerArea = this._model.get('axisExpandSlideTriggerArea');
        // But consider touch device, jump is necessary.
        var useJump = triggerArea[0] != null;

        if (axisCollapseWidth) {
            if (useJump && axisCollapseWidth && pointCoord < winSize * triggerArea[0]) {
                behavior = 'jump';
                delta = pointCoord - winSize * triggerArea[2];
            }
            else if (useJump && axisCollapseWidth && pointCoord > winSize * (1 - triggerArea[0])) {
                behavior = 'jump';
                delta = pointCoord - winSize * (1 - triggerArea[2]);
            }
            else {
                (delta = pointCoord - winSize * triggerArea[1]) >= 0
                    && (delta = pointCoord - winSize * (1 - triggerArea[1])) <= 0
                    && (delta = 0);
            }
            delta *= layoutInfo.axisExpandWidth / axisCollapseWidth;
            delta
                ? sliderMove(delta, axisExpandWindow, extent, 'all')
                // Avoid nonsense triger on mousemove.
                : (behavior = 'none');
        }
        // When screen is too narrow, make it visible and slidable, although it is hard to interact.
        else {
            var winSize = axisExpandWindow[1] - axisExpandWindow[0];
            var pos = extent[1] * pointCoord / winSize;
            axisExpandWindow = [mathMax$5(0, pos - winSize / 2)];
            axisExpandWindow[1] = mathMin$5(extent[1], axisExpandWindow[0] + winSize);
            axisExpandWindow[0] = axisExpandWindow[1] - winSize;
        }

        return {
            axisExpandWindow: axisExpandWindow,
            behavior: behavior
        };
    }
};

function restrict(len, extent) {
    return mathMin$5(mathMax$5(len, extent[0]), extent[1]);
}

function layoutAxisWithoutExpand(axisIndex, layoutInfo) {
    var step = layoutInfo.layoutLength / (layoutInfo.axisCount - 1);
    return {
        position: step * axisIndex,
        axisNameAvailableWidth: step,
        axisLabelShow: true
    };
}

function layoutAxisWithExpand(axisIndex, layoutInfo) {
    var layoutLength = layoutInfo.layoutLength;
    var axisExpandWidth = layoutInfo.axisExpandWidth;
    var axisCount = layoutInfo.axisCount;
    var axisCollapseWidth = layoutInfo.axisCollapseWidth;
    var winInnerIndices = layoutInfo.winInnerIndices;

    var position;
    var axisNameAvailableWidth = axisCollapseWidth;
    var axisLabelShow = false;
    var nameTruncateMaxWidth;

    if (axisIndex < winInnerIndices[0]) {
        position = axisIndex * axisCollapseWidth;
        nameTruncateMaxWidth = axisCollapseWidth;
    }
    else if (axisIndex <= winInnerIndices[1]) {
        position = layoutInfo.axisExpandWindow0Pos
            + axisIndex * axisExpandWidth - layoutInfo.axisExpandWindow[0];
        axisNameAvailableWidth = axisExpandWidth;
        axisLabelShow = true;
    }
    else {
        position = layoutLength - (axisCount - 1 - axisIndex) * axisCollapseWidth;
        nameTruncateMaxWidth = axisCollapseWidth;
    }

    return {
        position: position,
        axisNameAvailableWidth: axisNameAvailableWidth,
        axisLabelShow: axisLabelShow,
        nameTruncateMaxWidth: nameTruncateMaxWidth
    };
}

/**
 * Parallel coordinate system creater.
 */

function create$2(ecModel, api) {
    var coordSysList = [];

    ecModel.eachComponent('parallel', function (parallelModel, idx) {
        var coordSys = new Parallel(parallelModel, ecModel, api);

        coordSys.name = 'parallel_' + idx;
        coordSys.resize(parallelModel, api);

        parallelModel.coordinateSystem = coordSys;
        coordSys.model = parallelModel;

        coordSysList.push(coordSys);
    });

    // Inject the coordinateSystems into seriesModel
    ecModel.eachSeries(function (seriesModel) {
        if (seriesModel.get('coordinateSystem') === 'parallel') {
            var parallelModel = ecModel.queryComponents({
                mainType: 'parallel',
                index: seriesModel.get('parallelIndex'),
                id: seriesModel.get('parallelId')
            })[0];
            seriesModel.coordinateSystem = parallelModel.coordinateSystem;
        }
    });

    return coordSysList;
}

CoordinateSystemManager.register('parallel', {create: create$2});

var AxisModel$2 = ComponentModel.extend({

    type: 'baseParallelAxis',

    /**
     * @type {module:echarts/coord/parallel/Axis}
     */
    axis: null,

    /**
     * @type {Array.<Array.<number>}
     * @readOnly
     */
    activeIntervals: [],

    /**
     * @return {Object}
     */
    getAreaSelectStyle: function () {
        return makeStyleMapper(
            [
                ['fill', 'color'],
                ['lineWidth', 'borderWidth'],
                ['stroke', 'borderColor'],
                ['width', 'width'],
                ['opacity', 'opacity']
            ]
        )(this.getModel('areaSelectStyle'));
    },

    /**
     * The code of this feature is put on AxisModel but not ParallelAxis,
     * because axisModel can be alive after echarts updating but instance of
     * ParallelAxis having been disposed. this._activeInterval should be kept
     * when action dispatched (i.e. legend click).
     *
     * @param {Array.<Array<number>>} intervals interval.length === 0
     *                                          means set all active.
     * @public
     */
    setActiveIntervals: function (intervals) {
        var activeIntervals = this.activeIntervals = clone(intervals);

        // Normalize
        if (activeIntervals) {
            for (var i = activeIntervals.length - 1; i >= 0; i--) {
                asc(activeIntervals[i]);
            }
        }
    },

    /**
     * @param {number|string} [value] When attempting to detect 'no activeIntervals set',
     *                         value can not be input.
     * @return {string} 'normal': no activeIntervals set,
     *                  'active',
     *                  'inactive'.
     * @public
     */
    getActiveState: function (value) {
        var activeIntervals = this.activeIntervals;

        if (!activeIntervals.length) {
            return 'normal';
        }

        if (value == null) {
            return 'inactive';
        }

        for (var i = 0, len = activeIntervals.length; i < len; i++) {
            if (activeIntervals[i][0] <= value && value <= activeIntervals[i][1]) {
                return 'active';
            }
        }
        return 'inactive';
    }

});

var defaultOption$1 = {

    type: 'value',

    /**
     * @type {Array.<number>}
     */
    dim: null, // 0, 1, 2, ...

    // parallelIndex: null,

    areaSelectStyle: {
        width: 20,
        borderWidth: 1,
        borderColor: 'rgba(160,197,232)',
        color: 'rgba(160,197,232)',
        opacity: 0.3
    },

    realtime: true, // Whether realtime update view when select.

    z: 10
};

merge(AxisModel$2.prototype, axisModelCommonMixin);

function getAxisType$1(axisName, option) {
    return option.type || (option.data ? 'category' : 'value');
}

axisModelCreator('parallel', AxisModel$2, getAxisType$1, defaultOption$1);

ComponentModel.extend({

    type: 'parallel',

    dependencies: ['parallelAxis'],

    /**
     * @type {module:echarts/coord/parallel/Parallel}
     */
    coordinateSystem: null,

    /**
     * Each item like: 'dim0', 'dim1', 'dim2', ...
     * @type {Array.<string>}
     * @readOnly
     */
    dimensions: null,

    /**
     * Coresponding to dimensions.
     * @type {Array.<number>}
     * @readOnly
     */
    parallelAxisIndex: null,

    layoutMode: 'box',

    defaultOption: {
        zlevel: 0,
        z: 0,
        left: 80,
        top: 60,
        right: 80,
        bottom: 60,
        // width: {totalWidth} - left - right,
        // height: {totalHeight} - top - bottom,

        layout: 'horizontal',      // 'horizontal' or 'vertical'

        // FIXME
        // naming?
        axisExpandable: false,
        axisExpandCenter: null,
        axisExpandCount: 0,
        axisExpandWidth: 50,      // FIXME '10%' ?
        axisExpandRate: 17,
        axisExpandDebounce: 50,
        // [out, in, jumpTarget]. In percentage. If use [null, 0.05], null means full.
        // Do not doc to user until necessary.
        axisExpandSlideTriggerArea: [-0.15, 0.05, 0.4],
        axisExpandTriggerOn: 'click', // 'mousemove' or 'click'

        parallelAxisDefault: null
    },

    /**
     * @override
     */
    init: function () {
        ComponentModel.prototype.init.apply(this, arguments);

        this.mergeOption({});
    },

    /**
     * @override
     */
    mergeOption: function (newOption) {
        var thisOption = this.option;

        newOption && merge(thisOption, newOption, true);

        this._initDimensions();
    },

    /**
     * Whether series or axis is in this coordinate system.
     * @param {module:echarts/model/Series|module:echarts/coord/parallel/AxisModel} model
     * @param {module:echarts/model/Global} ecModel
     */
    contains: function (model, ecModel) {
        var parallelIndex = model.get('parallelIndex');
        return parallelIndex != null
            && ecModel.getComponent('parallel', parallelIndex) === this;
    },

    setAxisExpand: function (opt) {
        each$1(
            ['axisExpandable', 'axisExpandCenter', 'axisExpandCount', 'axisExpandWidth', 'axisExpandWindow'],
            function (name) {
                if (opt.hasOwnProperty(name)) {
                    this.option[name] = opt[name];
                }
            },
            this
        );
    },

    /**
     * @private
     */
    _initDimensions: function () {
        var dimensions = this.dimensions = [];
        var parallelAxisIndex = this.parallelAxisIndex = [];

        var axisModels = filter(this.dependentModels.parallelAxis, function (axisModel) {
            // Can not use this.contains here, because
            // initialization has not been completed yet.
            return (axisModel.get('parallelIndex') || 0) === this.componentIndex;
        }, this);

        each$1(axisModels, function (axisModel) {
            dimensions.push('dim' + axisModel.get('dim'));
            parallelAxisIndex.push(axisModel.componentIndex);
        });
    }

});

/**
 * @payload
 * @property {string} parallelAxisId
 * @property {Array.<Array.<number>>} intervals
 */
var actionInfo$1 = {
    type: 'axisAreaSelect',
    event: 'axisAreaSelected'
    // update: 'updateVisual'
};

registerAction(actionInfo$1, function (payload, ecModel) {
    ecModel.eachComponent(
        {mainType: 'parallelAxis', query: payload},
        function (parallelAxisModel) {
            parallelAxisModel.axis.model.setActiveIntervals(payload.intervals);
        }
    );
});

/**
 * @payload
 */
registerAction('parallelAxisExpand', function (payload, ecModel) {
    ecModel.eachComponent(
        {mainType: 'parallel', query: payload},
        function (parallelModel) {
            parallelModel.setAxisExpand(payload);
        }
    );

});

var curry$2 = curry;
var each$13 = each$1;
var map$2 = map;
var mathMin$6 = Math.min;
var mathMax$6 = Math.max;
var mathPow$2 = Math.pow;

var COVER_Z = 10000;
var UNSELECT_THRESHOLD = 6;
var MIN_RESIZE_LINE_WIDTH = 6;
var MUTEX_RESOURCE_KEY = 'globalPan';

var DIRECTION_MAP = {
    w: [0, 0],
    e: [0, 1],
    n: [1, 0],
    s: [1, 1]
};
var CURSOR_MAP = {
    w: 'ew',
    e: 'ew',
    n: 'ns',
    s: 'ns',
    ne: 'nesw',
    sw: 'nesw',
    nw: 'nwse',
    se: 'nwse'
};
var DEFAULT_BRUSH_OPT = {
    brushStyle: {
        lineWidth: 2,
        stroke: 'rgba(0,0,0,0.3)',
        fill: 'rgba(0,0,0,0.1)'
    },
    transformable: true,
    brushMode: 'single',
    removeOnClick: false
};

var baseUID = 0;

/**
 * @alias module:echarts/component/helper/BrushController
 * @constructor
 * @mixin {module:zrender/mixin/Eventful}
 * @event module:echarts/component/helper/BrushController#brush
 *        params:
 *            areas: Array.<Array>, coord relates to container group,
 *                                    If no container specified, to global.
 *            opt {
 *                isEnd: boolean,
 *                removeOnClick: boolean
 *            }
 *
 * @param {module:zrender/zrender~ZRender} zr
 */
function BrushController(zr) {

    if (__DEV__) {
        assert$1(zr);
    }

    Eventful.call(this);

    /**
     * @type {module:zrender/zrender~ZRender}
     * @private
     */
    this._zr = zr;

    /**
     * @type {module:zrender/container/Group}
     * @readOnly
     */
    this.group = new Group();

    /**
     * Only for drawing (after enabledBrush).
     *     'line', 'rect', 'polygon' or false
     *     If passing false/null/undefined, disable brush.
     *     If passing 'auto', determined by panel.defaultBrushType
     * @private
     * @type {string}
     */
    this._brushType;

    /**
     * Only for drawing (after enabledBrush).
     *
     * @private
     * @type {Object}
     */
    this._brushOption;

    /**
     * @private
     * @type {Object}
     */
    this._panels;

    /**
     * @private
     * @type {Array.<nubmer>}
     */
    this._track = [];

    /**
     * @private
     * @type {boolean}
     */
    this._dragging;

    /**
     * @private
     * @type {Array}
     */
    this._covers = [];

    /**
     * @private
     * @type {moudule:zrender/container/Group}
     */
    this._creatingCover;

    /**
     * `true` means global panel
     * @private
     * @type {module:zrender/container/Group|boolean}
     */
    this._creatingPanel;

    /**
     * @private
     * @type {boolean}
     */
    this._enableGlobalPan;

    /**
     * @private
     * @type {boolean}
     */
    if (__DEV__) {
        this._mounted;
    }

    /**
     * @private
     * @type {string}
     */
    this._uid = 'brushController_' + baseUID++;

    /**
     * @private
     * @type {Object}
     */
    this._handlers = {};
    each$13(mouseHandlers, function (handler, eventName) {
        this._handlers[eventName] = bind(handler, this);
    }, this);
}

BrushController.prototype = {

    constructor: BrushController,

    /**
     * If set to null/undefined/false, select disabled.
     * @param {Object} brushOption
     * @param {string|boolean} brushOption.brushType 'line', 'rect', 'polygon' or false
     *                          If passing false/null/undefined, disable brush.
     *                          If passing 'auto', determined by panel.defaultBrushType.
     *                              ('auto' can not be used in global panel)
     * @param {number} [brushOption.brushMode='single'] 'single' or 'multiple'
     * @param {boolean} [brushOption.transformable=true]
     * @param {boolean} [brushOption.removeOnClick=false]
     * @param {Object} [brushOption.brushStyle]
     * @param {number} [brushOption.brushStyle.width]
     * @param {number} [brushOption.brushStyle.lineWidth]
     * @param {string} [brushOption.brushStyle.stroke]
     * @param {string} [brushOption.brushStyle.fill]
     * @param {number} [brushOption.z]
     */
    enableBrush: function (brushOption) {
        if (__DEV__) {
            assert$1(this._mounted);
        }

        this._brushType && doDisableBrush(this);
        brushOption.brushType && doEnableBrush(this, brushOption);

        return this;
    },

    /**
     * @param {Array.<Object>} panelOpts If not pass, it is global brush.
     *        Each items: {
     *            panelId, // mandatory.
     *            clipPath, // mandatory. function.
     *            isTargetByCursor, // mandatory. function.
     *            defaultBrushType, // optional, only used when brushType is 'auto'.
     *            getLinearBrushOtherExtent, // optional. function.
     *        }
     */
    setPanels: function (panelOpts) {
        if (panelOpts && panelOpts.length) {
            var panels = this._panels = {};
            each$1(panelOpts, function (panelOpts) {
                panels[panelOpts.panelId] = clone(panelOpts);
            });
        }
        else {
            this._panels = null;
        }
        return this;
    },

    /**
     * @param {Object} [opt]
     * @return {boolean} [opt.enableGlobalPan=false]
     */
    mount: function (opt) {
        opt = opt || {};

        if (__DEV__) {
            this._mounted = true; // should be at first.
        }

        this._enableGlobalPan = opt.enableGlobalPan;

        var thisGroup = this.group;
        this._zr.add(thisGroup);

        thisGroup.attr({
            position: opt.position || [0, 0],
            rotation: opt.rotation || 0,
            scale: opt.scale || [1, 1]
        });
        this._transform = thisGroup.getLocalTransform();

        return this;
    },

    eachCover: function (cb, context) {
        each$13(this._covers, cb, context);
    },

    /**
     * Update covers.
     * @param {Array.<Object>} brushOptionList Like:
     *        [
     *            {id: 'xx', brushType: 'line', range: [23, 44], brushStyle, transformable},
     *            {id: 'yy', brushType: 'rect', range: [[23, 44], [23, 54]]},
     *            ...
     *        ]
     *        `brushType` is required in each cover info. (can not be 'auto')
     *        `id` is not mandatory.
     *        `brushStyle`, `transformable` is not mandatory, use DEFAULT_BRUSH_OPT by default.
     *        If brushOptionList is null/undefined, all covers removed.
     */
    updateCovers: function (brushOptionList) {
        if (__DEV__) {
            assert$1(this._mounted);
        }

        brushOptionList = map(brushOptionList, function (brushOption) {
            return merge(clone(DEFAULT_BRUSH_OPT), brushOption, true);
        });

        var tmpIdPrefix = '\0-brush-index-';
        var oldCovers = this._covers;
        var newCovers = this._covers = [];
        var controller = this;
        var creatingCover = this._creatingCover;

        (new DataDiffer(oldCovers, brushOptionList, oldGetKey, getKey))
            .add(addOrUpdate)
            .update(addOrUpdate)
            .remove(remove)
            .execute();

        return this;

        function getKey(brushOption, index) {
            return (brushOption.id != null ? brushOption.id : tmpIdPrefix + index)
                + '-' + brushOption.brushType;
        }

        function oldGetKey(cover, index) {
            return getKey(cover.__brushOption, index);
        }

        function addOrUpdate(newIndex, oldIndex) {
            var newBrushOption = brushOptionList[newIndex];
            // Consider setOption in event listener of brushSelect,
            // where updating cover when creating should be forbiden.
            if (oldIndex != null && oldCovers[oldIndex] === creatingCover) {
                newCovers[newIndex] = oldCovers[oldIndex];
            }
            else {
                var cover = newCovers[newIndex] = oldIndex != null
                    ? (
                        oldCovers[oldIndex].__brushOption = newBrushOption,
                        oldCovers[oldIndex]
                    )
                    : endCreating(controller, createCover(controller, newBrushOption));
                updateCoverAfterCreation(controller, cover);
            }
        }

        function remove(oldIndex) {
            if (oldCovers[oldIndex] !== creatingCover) {
                controller.group.remove(oldCovers[oldIndex]);
            }
        }
    },

    unmount: function () {
        if (__DEV__) {
            if (!this._mounted) {
                return;
            }
        }

        this.enableBrush(false);

        // container may 'removeAll' outside.
        clearCovers(this);
        this._zr.remove(this.group);

        if (__DEV__) {
            this._mounted = false; // should be at last.
        }

        return this;
    },

    dispose: function () {
        this.unmount();
        this.off();
    }
};

mixin(BrushController, Eventful);

function doEnableBrush(controller, brushOption) {
    var zr = controller._zr;

    // Consider roam, which takes globalPan too.
    if (!controller._enableGlobalPan) {
        take(zr, MUTEX_RESOURCE_KEY, controller._uid);
    }

    each$13(controller._handlers, function (handler, eventName) {
        zr.on(eventName, handler);
    });

    controller._brushType = brushOption.brushType;
    controller._brushOption = merge(clone(DEFAULT_BRUSH_OPT), brushOption, true);
}

function doDisableBrush(controller) {
    var zr = controller._zr;

    release(zr, MUTEX_RESOURCE_KEY, controller._uid);

    each$13(controller._handlers, function (handler, eventName) {
        zr.off(eventName, handler);
    });

    controller._brushType = controller._brushOption = null;
}

function createCover(controller, brushOption) {
    var cover = coverRenderers[brushOption.brushType].createCover(controller, brushOption);
    cover.__brushOption = brushOption;
    updateZ$1(cover, brushOption);
    controller.group.add(cover);
    return cover;
}

function endCreating(controller, creatingCover) {
    var coverRenderer = getCoverRenderer(creatingCover);
    if (coverRenderer.endCreating) {
        coverRenderer.endCreating(controller, creatingCover);
        updateZ$1(creatingCover, creatingCover.__brushOption);
    }
    return creatingCover;
}

function updateCoverShape(controller, cover) {
    var brushOption = cover.__brushOption;
    getCoverRenderer(cover).updateCoverShape(
        controller, cover, brushOption.range, brushOption
    );
}

function updateZ$1(cover, brushOption) {
    var z = brushOption.z;
    z == null && (z = COVER_Z);
    cover.traverse(function (el) {
        el.z = z;
        el.z2 = z; // Consider in given container.
    });
}

function updateCoverAfterCreation(controller, cover) {
    getCoverRenderer(cover).updateCommon(controller, cover);
    updateCoverShape(controller, cover);
}

function getCoverRenderer(cover) {
    return coverRenderers[cover.__brushOption.brushType];
}

// return target panel or `true` (means global panel)
function getPanelByPoint(controller, e, localCursorPoint) {
    var panels = controller._panels;
    if (!panels) {
        return true; // Global panel
    }
    var panel;
    var transform = controller._transform;
    each$13(panels, function (pn) {
        pn.isTargetByCursor(e, localCursorPoint, transform) && (panel = pn);
    });
    return panel;
}

// Return a panel or true
function getPanelByCover(controller, cover) {
    var panels = controller._panels;
    if (!panels) {
        return true; // Global panel
    }
    var panelId = cover.__brushOption.panelId;
    // User may give cover without coord sys info,
    // which is then treated as global panel.
    return panelId != null ? panels[panelId] : true;
}

function clearCovers(controller) {
    var covers = controller._covers;
    var originalLength = covers.length;
    each$13(covers, function (cover) {
        controller.group.remove(cover);
    }, controller);
    covers.length = 0;

    return !!originalLength;
}

function trigger(controller, opt) {
    var areas = map$2(controller._covers, function (cover) {
        var brushOption = cover.__brushOption;
        var range = clone(brushOption.range);
        return {
            brushType: brushOption.brushType,
            panelId: brushOption.panelId,
            range: range
        };
    });

    controller.trigger('brush', areas, {
        isEnd: !!opt.isEnd,
        removeOnClick: !!opt.removeOnClick
    });
}

function shouldShowCover(controller) {
    var track = controller._track;

    if (!track.length) {
        return false;
    }

    var p2 = track[track.length - 1];
    var p1 = track[0];
    var dx = p2[0] - p1[0];
    var dy = p2[1] - p1[1];
    var dist = mathPow$2(dx * dx + dy * dy, 0.5);

    return dist > UNSELECT_THRESHOLD;
}

function getTrackEnds(track) {
    var tail = track.length - 1;
    tail < 0 && (tail = 0);
    return [track[0], track[tail]];
}

function createBaseRectCover(doDrift, controller, brushOption, edgeNames) {
    var cover = new Group();

    cover.add(new Rect({
        name: 'main',
        style: makeStyle(brushOption),
        silent: true,
        draggable: true,
        cursor: 'move',
        drift: curry$2(doDrift, controller, cover, 'nswe'),
        ondragend: curry$2(trigger, controller, {isEnd: true})
    }));

    each$13(
        edgeNames,
        function (name) {
            cover.add(new Rect({
                name: name,
                style: {opacity: 0},
                draggable: true,
                silent: true,
                invisible: true,
                drift: curry$2(doDrift, controller, cover, name),
                ondragend: curry$2(trigger, controller, {isEnd: true})
            }));
        }
    );

    return cover;
}

function updateBaseRect(controller, cover, localRange, brushOption) {
    var lineWidth = brushOption.brushStyle.lineWidth || 0;
    var handleSize = mathMax$6(lineWidth, MIN_RESIZE_LINE_WIDTH);
    var x = localRange[0][0];
    var y = localRange[1][0];
    var xa = x - lineWidth / 2;
    var ya = y - lineWidth / 2;
    var x2 = localRange[0][1];
    var y2 = localRange[1][1];
    var x2a = x2 - handleSize + lineWidth / 2;
    var y2a = y2 - handleSize + lineWidth / 2;
    var width = x2 - x;
    var height = y2 - y;
    var widtha = width + lineWidth;
    var heighta = height + lineWidth;

    updateRectShape(controller, cover, 'main', x, y, width, height);

    if (brushOption.transformable) {
        updateRectShape(controller, cover, 'w', xa, ya, handleSize, heighta);
        updateRectShape(controller, cover, 'e', x2a, ya, handleSize, heighta);
        updateRectShape(controller, cover, 'n', xa, ya, widtha, handleSize);
        updateRectShape(controller, cover, 's', xa, y2a, widtha, handleSize);

        updateRectShape(controller, cover, 'nw', xa, ya, handleSize, handleSize);
        updateRectShape(controller, cover, 'ne', x2a, ya, handleSize, handleSize);
        updateRectShape(controller, cover, 'sw', xa, y2a, handleSize, handleSize);
        updateRectShape(controller, cover, 'se', x2a, y2a, handleSize, handleSize);
    }
}

function updateCommon(controller, cover) {
    var brushOption = cover.__brushOption;
    var transformable = brushOption.transformable;

    var mainEl = cover.childAt(0);
    mainEl.useStyle(makeStyle(brushOption));
    mainEl.attr({
        silent: !transformable,
        cursor: transformable ? 'move' : 'default'
    });

    each$13(
        ['w', 'e', 'n', 's', 'se', 'sw', 'ne', 'nw'],
        function (name) {
            var el = cover.childOfName(name);
            var globalDir = getGlobalDirection(controller, name);

            el && el.attr({
                silent: !transformable,
                invisible: !transformable,
                cursor: transformable ? CURSOR_MAP[globalDir] + '-resize' : null
            });
        }
    );
}

function updateRectShape(controller, cover, name, x, y, w, h) {
    var el = cover.childOfName(name);
    el && el.setShape(pointsToRect(
        clipByPanel(controller, cover, [[x, y], [x + w, y + h]])
    ));
}

function makeStyle(brushOption) {
    return defaults({strokeNoScale: true}, brushOption.brushStyle);
}

function formatRectRange(x, y, x2, y2) {
    var min = [mathMin$6(x, x2), mathMin$6(y, y2)];
    var max = [mathMax$6(x, x2), mathMax$6(y, y2)];

    return [
        [min[0], max[0]], // x range
        [min[1], max[1]] // y range
    ];
}

function getTransform$1(controller) {
    return getTransform(controller.group);
}

function getGlobalDirection(controller, localDirection) {
    if (localDirection.length > 1) {
        localDirection = localDirection.split('');
        var globalDir = [
            getGlobalDirection(controller, localDirection[0]),
            getGlobalDirection(controller, localDirection[1])
        ];
        (globalDir[0] === 'e' || globalDir[0] === 'w') && globalDir.reverse();
        return globalDir.join('');
    }
    else {
        var map$$1 = {w: 'left', e: 'right', n: 'top', s: 'bottom'};
        var inverseMap = {left: 'w', right: 'e', top: 'n', bottom: 's'};
        var globalDir = transformDirection(
            map$$1[localDirection], getTransform$1(controller)
        );
        return inverseMap[globalDir];
    }
}

function driftRect(toRectRange, fromRectRange, controller, cover, name, dx, dy, e) {
    var brushOption = cover.__brushOption;
    var rectRange = toRectRange(brushOption.range);
    var localDelta = toLocalDelta(controller, dx, dy);

    each$13(name.split(''), function (namePart) {
        var ind = DIRECTION_MAP[namePart];
        rectRange[ind[0]][ind[1]] += localDelta[ind[0]];
    });

    brushOption.range = fromRectRange(formatRectRange(
        rectRange[0][0], rectRange[1][0], rectRange[0][1], rectRange[1][1]
    ));

    updateCoverAfterCreation(controller, cover);
    trigger(controller, {isEnd: false});
}

function driftPolygon(controller, cover, dx, dy, e) {
    var range = cover.__brushOption.range;
    var localDelta = toLocalDelta(controller, dx, dy);

    each$13(range, function (point) {
        point[0] += localDelta[0];
        point[1] += localDelta[1];
    });

    updateCoverAfterCreation(controller, cover);
    trigger(controller, {isEnd: false});
}

function toLocalDelta(controller, dx, dy) {
    var thisGroup = controller.group;
    var localD = thisGroup.transformCoordToLocal(dx, dy);
    var localZero = thisGroup.transformCoordToLocal(0, 0);

    return [localD[0] - localZero[0], localD[1] - localZero[1]];
}

function clipByPanel(controller, cover, data) {
    var panel = getPanelByCover(controller, cover);

    return (panel && panel !== true)
        ? panel.clipPath(data, controller._transform)
        : clone(data);
}

function pointsToRect(points) {
    var xmin = mathMin$6(points[0][0], points[1][0]);
    var ymin = mathMin$6(points[0][1], points[1][1]);
    var xmax = mathMax$6(points[0][0], points[1][0]);
    var ymax = mathMax$6(points[0][1], points[1][1]);

    return {
        x: xmin,
        y: ymin,
        width: xmax - xmin,
        height: ymax - ymin
    };
}

function resetCursor(controller, e, localCursorPoint) {
    // Check active
    if (!controller._brushType) {
        return;
    }

    var zr = controller._zr;
    var covers = controller._covers;
    var currPanel = getPanelByPoint(controller, e, localCursorPoint);

    // Check whether in covers.
    if (!controller._dragging) {
        for (var i = 0; i < covers.length; i++) {
            var brushOption = covers[i].__brushOption;
            if (currPanel
                && (currPanel === true || brushOption.panelId === currPanel.panelId)
                && coverRenderers[brushOption.brushType].contain(
                    covers[i], localCursorPoint[0], localCursorPoint[1]
                )
            ) {
                // Use cursor style set on cover.
                return;
            }
        }
    }

    currPanel && zr.setCursorStyle('crosshair');
}

function preventDefault(e) {
    var rawE = e.event;
    rawE.preventDefault && rawE.preventDefault();
}

function mainShapeContain(cover, x, y) {
    return cover.childOfName('main').contain(x, y);
}

function updateCoverByMouse(controller, e, localCursorPoint, isEnd) {
    var creatingCover = controller._creatingCover;
    var panel = controller._creatingPanel;
    var thisBrushOption = controller._brushOption;
    var eventParams;

    controller._track.push(localCursorPoint.slice());

    if (shouldShowCover(controller) || creatingCover) {

        if (panel && !creatingCover) {
            thisBrushOption.brushMode === 'single' && clearCovers(controller);
            var brushOption = clone(thisBrushOption);
            brushOption.brushType = determineBrushType(brushOption.brushType, panel);
            brushOption.panelId = panel === true ? null : panel.panelId;
            creatingCover = controller._creatingCover = createCover(controller, brushOption);
            controller._covers.push(creatingCover);
        }

        if (creatingCover) {
            var coverRenderer = coverRenderers[determineBrushType(controller._brushType, panel)];
            var coverBrushOption = creatingCover.__brushOption;

            coverBrushOption.range = coverRenderer.getCreatingRange(
                clipByPanel(controller, creatingCover, controller._track)
            );

            if (isEnd) {
                endCreating(controller, creatingCover);
                coverRenderer.updateCommon(controller, creatingCover);
            }

            updateCoverShape(controller, creatingCover);

            eventParams = {isEnd: isEnd};
        }
    }
    else if (
        isEnd
        && thisBrushOption.brushMode === 'single'
        && thisBrushOption.removeOnClick
    ) {
        // Help user to remove covers easily, only by a tiny drag, in 'single' mode.
        // But a single click do not clear covers, because user may have casual
        // clicks (for example, click on other component and do not expect covers
        // disappear).
        // Only some cover removed, trigger action, but not every click trigger action.
        if (getPanelByPoint(controller, e, localCursorPoint) && clearCovers(controller)) {
            eventParams = {isEnd: isEnd, removeOnClick: true};
        }
    }

    return eventParams;
}

function determineBrushType(brushType, panel) {
    if (brushType === 'auto') {
        if (__DEV__) {
            assert$1(
                panel && panel.defaultBrushType,
                'MUST have defaultBrushType when brushType is "atuo"'
            );
        }
        return panel.defaultBrushType;
    }
    return brushType;
}

var mouseHandlers = {

    mousedown: function (e) {
        if (this._dragging) {
            // In case some browser do not support globalOut,
            // and release mose out side the browser.
            handleDragEnd.call(this, e);
        }
        else if (!e.target || !e.target.draggable) {

            preventDefault(e);

            var localCursorPoint = this.group.transformCoordToLocal(e.offsetX, e.offsetY);

            this._creatingCover = null;
            var panel = this._creatingPanel = getPanelByPoint(this, e, localCursorPoint);

            if (panel) {
                this._dragging = true;
                this._track = [localCursorPoint.slice()];
            }
        }
    },

    mousemove: function (e) {
        var localCursorPoint = this.group.transformCoordToLocal(e.offsetX, e.offsetY);

        resetCursor(this, e, localCursorPoint);

        if (this._dragging) {

            preventDefault(e);

            var eventParams = updateCoverByMouse(this, e, localCursorPoint, false);

            eventParams && trigger(this, eventParams);
        }
    },

    mouseup: handleDragEnd //,

    // FIXME
    // in tooltip, globalout should not be triggered.
    // globalout: handleDragEnd
};

function handleDragEnd(e) {
    if (this._dragging) {

        preventDefault(e);

        var localCursorPoint = this.group.transformCoordToLocal(e.offsetX, e.offsetY);
        var eventParams = updateCoverByMouse(this, e, localCursorPoint, true);

        this._dragging = false;
        this._track = [];
        this._creatingCover = null;

        // trigger event shoule be at final, after procedure will be nested.
        eventParams && trigger(this, eventParams);
    }
}

/**
 * key: brushType
 * @type {Object}
 */
var coverRenderers = {

    lineX: getLineRenderer(0),

    lineY: getLineRenderer(1),

    rect: {
        createCover: function (controller, brushOption) {
            return createBaseRectCover(
                curry$2(
                    driftRect,
                    function (range) {
                        return range;
                    },
                    function (range) {
                        return range;
                    }
                ),
                controller,
                brushOption,
                ['w', 'e', 'n', 's', 'se', 'sw', 'ne', 'nw']
            );
        },
        getCreatingRange: function (localTrack) {
            var ends = getTrackEnds(localTrack);
            return formatRectRange(ends[1][0], ends[1][1], ends[0][0], ends[0][1]);
        },
        updateCoverShape: function (controller, cover, localRange, brushOption) {
            updateBaseRect(controller, cover, localRange, brushOption);
        },
        updateCommon: updateCommon,
        contain: mainShapeContain
    },

    polygon: {
        createCover: function (controller, brushOption) {
            var cover = new Group();

            // Do not use graphic.Polygon because graphic.Polyline do not close the
            // border of the shape when drawing, which is a better experience for user.
            cover.add(new Polyline({
                name: 'main',
                style: makeStyle(brushOption),
                silent: true
            }));

            return cover;
        },
        getCreatingRange: function (localTrack) {
            return localTrack;
        },
        endCreating: function (controller, cover) {
            cover.remove(cover.childAt(0));
            // Use graphic.Polygon close the shape.
            cover.add(new Polygon({
                name: 'main',
                draggable: true,
                drift: curry$2(driftPolygon, controller, cover),
                ondragend: curry$2(trigger, controller, {isEnd: true})
            }));
        },
        updateCoverShape: function (controller, cover, localRange, brushOption) {
            cover.childAt(0).setShape({
                points: clipByPanel(controller, cover, localRange)
            });
        },
        updateCommon: updateCommon,
        contain: mainShapeContain
    }
};

function getLineRenderer(xyIndex) {
    return {
        createCover: function (controller, brushOption) {
            return createBaseRectCover(
                curry$2(
                    driftRect,
                    function (range) {
                        var rectRange = [range, [0, 100]];
                        xyIndex && rectRange.reverse();
                        return rectRange;
                    },
                    function (rectRange) {
                        return rectRange[xyIndex];
                    }
                ),
                controller,
                brushOption,
                [['w', 'e'], ['n', 's']][xyIndex]
            );
        },
        getCreatingRange: function (localTrack) {
            var ends = getTrackEnds(localTrack);
            var min = mathMin$6(ends[0][xyIndex], ends[1][xyIndex]);
            var max = mathMax$6(ends[0][xyIndex], ends[1][xyIndex]);

            return [min, max];
        },
        updateCoverShape: function (controller, cover, localRange, brushOption) {
            var otherExtent;
            // If brushWidth not specified, fit the panel.
            var panel = getPanelByCover(controller, cover);
            if (panel !== true && panel.getLinearBrushOtherExtent) {
                otherExtent = panel.getLinearBrushOtherExtent(
                    xyIndex, controller._transform
                );
            }
            else {
                var zr = controller._zr;
                otherExtent = [0, [zr.getWidth(), zr.getHeight()][1 - xyIndex]];
            }
            var rectRange = [localRange, otherExtent];
            xyIndex && rectRange.reverse();

            updateBaseRect(controller, cover, rectRange, brushOption);
        },
        updateCommon: updateCommon,
        contain: mainShapeContain
    };
}

function makeRectPanelClipPath(rect) {
    rect = normalizeRect(rect);
    return function (localPoints, transform) {
        return clipPointsByRect(localPoints, rect);
    };
}

function makeLinearBrushOtherExtent(rect, specifiedXYIndex) {
    rect = normalizeRect(rect);
    return function (xyIndex) {
        var idx = specifiedXYIndex != null ? specifiedXYIndex : xyIndex;
        var brushWidth = idx ? rect.width : rect.height;
        var base = idx ? rect.x : rect.y;
        return [base, base + (brushWidth || 0)];
    };
}

function makeRectIsTargetByCursor(rect, api, targetModel) {
    rect = normalizeRect(rect);
    return function (e, localCursorPoint, transform) {
        return rect.contain(localCursorPoint[0], localCursorPoint[1])
            && !onIrrelevantElement(e, api, targetModel);
    };
}

// Consider width/height is negative.
function normalizeRect(rect) {
    return BoundingRect.create(rect);
}

var elementList = ['axisLine', 'axisTickLabel', 'axisName'];

var AxisView$2 = extendComponentView({

    type: 'parallelAxis',

    /**
     * @override
     */
    init: function (ecModel, api) {
        AxisView$2.superApply(this, 'init', arguments);

        /**
         * @type {module:echarts/component/helper/BrushController}
         */
        (this._brushController = new BrushController(api.getZr()))
            .on('brush', bind(this._onBrush, this));
    },

    /**
     * @override
     */
    render: function (axisModel, ecModel, api, payload) {
        if (fromAxisAreaSelect(axisModel, ecModel, payload)) {
            return;
        }

        this.axisModel = axisModel;
        this.api = api;

        this.group.removeAll();

        var oldAxisGroup = this._axisGroup;
        this._axisGroup = new Group();
        this.group.add(this._axisGroup);

        if (!axisModel.get('show')) {
            return;
        }

        var coordSysModel = getCoordSysModel(axisModel, ecModel);
        var coordSys = coordSysModel.coordinateSystem;

        var areaSelectStyle = axisModel.getAreaSelectStyle();
        var areaWidth = areaSelectStyle.width;

        var dim = axisModel.axis.dim;
        var axisLayout = coordSys.getAxisLayout(dim);

        var builderOpt = extend(
            {strokeContainThreshold: areaWidth},
            axisLayout
        );

        var axisBuilder = new AxisBuilder(axisModel, builderOpt);

        each$1(elementList, axisBuilder.add, axisBuilder);

        this._axisGroup.add(axisBuilder.getGroup());

        this._refreshBrushController(
            builderOpt, areaSelectStyle, axisModel, coordSysModel, areaWidth, api
        );

        var animationModel = (payload && payload.animation === false) ? null : axisModel;
        groupTransition(oldAxisGroup, this._axisGroup, animationModel);
    },

    // /**
    //  * @override
    //  */
    // updateVisual: function (axisModel, ecModel, api, payload) {
    //     this._brushController && this._brushController
    //         .updateCovers(getCoverInfoList(axisModel));
    // },

    _refreshBrushController: function (
        builderOpt, areaSelectStyle, axisModel, coordSysModel, areaWidth, api
    ) {
        // After filtering, axis may change, select area needs to be update.
        var extent = axisModel.axis.getExtent();
        var extentLen = extent[1] - extent[0];
        var extra = Math.min(30, Math.abs(extentLen) * 0.1); // Arbitrary value.

        // width/height might be negative, which will be
        // normalized in BoundingRect.
        var rect = BoundingRect.create({
            x: extent[0],
            y: -areaWidth / 2,
            width: extentLen,
            height: areaWidth
        });
        rect.x -= extra;
        rect.width += 2 * extra;

        this._brushController
            .mount({
                enableGlobalPan: true,
                rotation: builderOpt.rotation,
                position: builderOpt.position
            })
            .setPanels([{
                panelId: 'pl',
                clipPath: makeRectPanelClipPath(rect),
                isTargetByCursor: makeRectIsTargetByCursor(rect, api, coordSysModel),
                getLinearBrushOtherExtent: makeLinearBrushOtherExtent(rect, 0)
            }])
            .enableBrush({
                brushType: 'lineX',
                brushStyle: areaSelectStyle,
                removeOnClick: true
            })
            .updateCovers(getCoverInfoList(axisModel));
    },

    _onBrush: function (coverInfoList, opt) {
        // Do not cache these object, because the mey be changed.
        var axisModel = this.axisModel;
        var axis = axisModel.axis;
        var intervals = map(coverInfoList, function (coverInfo) {
            return [
                axis.coordToData(coverInfo.range[0], true),
                axis.coordToData(coverInfo.range[1], true)
            ];
        });

        // If realtime is true, action is not dispatched on drag end, because
        // the drag end emits the same params with the last drag move event,
        // and may have some delay when using touch pad.
        if (!axisModel.option.realtime === opt.isEnd || opt.removeOnClick) { // jshint ignore:line
            this.api.dispatchAction({
                type: 'axisAreaSelect',
                parallelAxisId: axisModel.id,
                intervals: intervals
            });
        }
    },

    /**
     * @override
     */
    dispose: function () {
        this._brushController.dispose();
    }
});

function fromAxisAreaSelect(axisModel, ecModel, payload) {
    return payload
        && payload.type === 'axisAreaSelect'
        && ecModel.findComponents(
            {mainType: 'parallelAxis', query: payload}
        )[0] === axisModel;
}

function getCoverInfoList(axisModel) {
    var axis = axisModel.axis;
    return map(axisModel.activeIntervals, function (interval) {
        return {
            brushType: 'lineX',
            panelId: 'pl',
            range: [
                axis.dataToCoord(interval[0], true),
                axis.dataToCoord(interval[1], true)
            ]
        };
    });
}

function getCoordSysModel(axisModel, ecModel) {
    return ecModel.getComponent(
        'parallel', axisModel.get('parallelIndex')
    );
}

var CLICK_THRESHOLD = 5; // > 4

// Parallel view
extendComponentView({
    type: 'parallel',

    render: function (parallelModel, ecModel, api) {
        this._model = parallelModel;
        this._api = api;

        if (!this._handlers) {
            this._handlers = {};
            each$1(handlers, function (handler, eventName) {
                api.getZr().on(eventName, this._handlers[eventName] = bind(handler, this));
            }, this);
        }

        createOrUpdate(
            this,
            '_throttledDispatchExpand',
            parallelModel.get('axisExpandRate'),
            'fixRate'
        );
    },

    dispose: function (ecModel, api) {
        each$1(this._handlers, function (handler, eventName) {
            api.getZr().off(eventName, handler);
        });
        this._handlers = null;
    },

    /**
     * @param {Object} [opt] If null, cancle the last action triggering for debounce.
     */
    _throttledDispatchExpand: function (opt) {
        this._dispatchExpand(opt);
    },

    _dispatchExpand: function (opt) {
        opt && this._api.dispatchAction(
            extend({type: 'parallelAxisExpand'}, opt)
        );
    }

});

var handlers = {

    mousedown: function (e) {
        if (checkTrigger(this, 'click')) {
            this._mouseDownPoint = [e.offsetX, e.offsetY];
        }
    },

    mouseup: function (e) {
        var mouseDownPoint = this._mouseDownPoint;

        if (checkTrigger(this, 'click') && mouseDownPoint) {
            var point = [e.offsetX, e.offsetY];
            var dist = Math.pow(mouseDownPoint[0] - point[0], 2)
                + Math.pow(mouseDownPoint[1] - point[1], 2);

            if (dist > CLICK_THRESHOLD) {
                return;
            }

            var result = this._model.coordinateSystem.getSlidedAxisExpandWindow(
                [e.offsetX, e.offsetY]
            );

            result.behavior !== 'none' && this._dispatchExpand({
                axisExpandWindow: result.axisExpandWindow
            });
        }

        this._mouseDownPoint = null;
    },

    mousemove: function (e) {
        // Should do nothing when brushing.
        if (this._mouseDownPoint || !checkTrigger(this, 'mousemove')) {
            return;
        }
        var model = this._model;
        var result = model.coordinateSystem.getSlidedAxisExpandWindow(
            [e.offsetX, e.offsetY]
        );

        var behavior = result.behavior;
        behavior === 'jump' && this._throttledDispatchExpand.debounceNextCall(model.get('axisExpandDebounce'));
        this._throttledDispatchExpand(
            behavior === 'none'
                ? null // Cancle the last trigger, in case that mouse slide out of the area quickly.
                : {
                    axisExpandWindow: result.axisExpandWindow,
                    // Jumping uses animation, and sliding suppresses animation.
                    animation: behavior === 'jump'  ? null : false
                }
        );
    }
};

function checkTrigger(view, triggerOn) {
    var model = view._model;
    return model.get('axisExpandable') && model.get('axisExpandTriggerOn') === triggerOn;
}

registerPreprocessor(parallelPreprocessor);

SeriesModel.extend({

    type: 'series.parallel',

    dependencies: ['parallel'],

    visualColorAccessPath: 'lineStyle.color',

    getInitialData: function (option, ecModel) {
        // Anication is forbiden in progressive data mode.
        if (this.option.progressive) {
            this.option.animation = false;
        }

        var source = this.getSource();

        setEncodeAndDimensions(source, this);

        return createListFromArray(source, this);
    },

    /**
     * User can get data raw indices on 'axisAreaSelected' event received.
     *
     * @public
     * @param {string} activeState 'active' or 'inactive' or 'normal'
     * @return {Array.<number>} Raw indices
     */
    getRawIndicesByActiveState: function (activeState) {
        var coordSys = this.coordinateSystem;
        var data = this.getData();
        var indices = [];

        coordSys.eachActiveState(data, function (theActiveState, dataIndex) {
            if (activeState === theActiveState) {
                indices.push(data.getRawIndex(dataIndex));
            }
        });

        return indices;
    },

    defaultOption: {
        zlevel: 0,                  // 一级层叠
        z: 2,                       // 二级层叠

        coordinateSystem: 'parallel',
        parallelIndex: 0,

        label: {
            show: false
        },

        inactiveOpacity: 0.05,
        activeOpacity: 1,

        lineStyle: {
            width: 1,
            opacity: 0.45,
            type: 'solid'
        },
        emphasis: {
            label: {
                show: false
            }
        },

        progressive: false, // 100
        smooth: false,

        animationEasing: 'linear'
    }
});

function setEncodeAndDimensions(source, seriesModel) {
    // The mapping of parallelAxis dimension to data dimension can
    // be specified in parallelAxis.option.dim. For example, if
    // parallelAxis.option.dim is 'dim3', it mapping to the third
    // dimension of data. But `data.encode` has higher priority.
    // Moreover, parallelModel.dimension should not be regarded as data
    // dimensions. Consider dimensions = ['dim4', 'dim2', 'dim6'];

    if (source.encodeDefine) {
        return;
    }

    var parallelModel = seriesModel.ecModel.getComponent(
        'parallel', seriesModel.get('parallelIndex')
    );
    if (!parallelModel) {
        return;
    }

    var encodeDefine = source.encodeDefine = createHashMap();
    each$1(parallelModel.dimensions, function (axisDim) {
        var dataDimIndex = convertDimNameToNumber(axisDim);
        encodeDefine.set(axisDim, dataDimIndex);
    });
}

function convertDimNameToNumber(dimName) {
    return +dimName.replace('dim', '');
}

var SMOOTH = 0.3;

var ParallelView = Chart.extend({

    type: 'parallel',

    init: function () {

        /**
         * @type {module:zrender/container/Group}
         * @private
         */
        this._dataGroup = new Group();

        this.group.add(this._dataGroup);

        /**
         * @type {module:echarts/data/List}
         */
        this._data;
    },

    /**
     * @override
     */
    render: function (seriesModel, ecModel, api, payload) {
        this._renderForNormal(seriesModel, payload);
        // this[
        //     seriesModel.option.progressive
        //         ? '_renderForProgressive'
        //         : '_renderForNormal'
        // ](seriesModel);
    },

    dispose: function () {},

    /**
     * @private
     */
    _renderForNormal: function (seriesModel, payload) {
        var dataGroup = this._dataGroup;
        var data = seriesModel.getData();
        var oldData = this._data;
        var coordSys = seriesModel.coordinateSystem;
        var dimensions = coordSys.dimensions;
        var option = seriesModel.option;
        var smooth = option.smooth ? SMOOTH : null;

        // Consider switch between progressive and not.
        // oldData && oldData.__plProgressive && dataGroup.removeAll();

        data.diff(oldData)
            .add(add)
            .update(update)
            .remove(remove)
            .execute();

        // Update style
        updateElCommon(data, smooth);

        // First create
        if (!this._data) {
            var clipPath = createGridClipShape$1(
                coordSys, seriesModel, function () {
                    // Callback will be invoked immediately if there is no animation
                    setTimeout(function () {
                        dataGroup.removeClipPath();
                    });
                }
            );
            dataGroup.setClipPath(clipPath);
        }

        this._data = data;

        function add(newDataIndex) {
            addEl(data, dataGroup, newDataIndex, dimensions, coordSys, null, smooth);
        }

        function update(newDataIndex, oldDataIndex) {
            var line = oldData.getItemGraphicEl(oldDataIndex);
            var points = createLinePoints(data, newDataIndex, dimensions, coordSys);
            data.setItemGraphicEl(newDataIndex, line);
            var animationModel = (payload && payload.animation === false) ? null : seriesModel;
            updateProps(line, {shape: {points: points}}, animationModel, newDataIndex);
        }

        function remove(oldDataIndex) {
            var line = oldData.getItemGraphicEl(oldDataIndex);
            dataGroup.remove(line);
        }

    },

    /**
     * @private
     */
    // _renderForProgressive: function (seriesModel) {
    //     var dataGroup = this._dataGroup;
    //     var data = seriesModel.getData();
    //     var oldData = this._data;
    //     var coordSys = seriesModel.coordinateSystem;
    //     var dimensions = coordSys.dimensions;
    //     var option = seriesModel.option;
    //     var progressive = option.progressive;
    //     var smooth = option.smooth ? SMOOTH : null;

    //     // In progressive animation is disabled, so use simple data diff,
    //     // which effects performance less.
    //     // (Typically performance for data with length 7000+ like:
    //     // simpleDiff: 60ms, addEl: 184ms,
    //     // in RMBP 2.4GHz intel i7, OSX 10.9 chrome 50.0.2661.102 (64-bit))
    //     if (simpleDiff(oldData, data, dimensions)) {
    //         dataGroup.removeAll();
    //         data.each(function (dataIndex) {
    //             addEl(data, dataGroup, dataIndex, dimensions, coordSys);
    //         });
    //     }

    //     updateElCommon(data, progressive, smooth);

    //     // Consider switch between progressive and not.
    //     data.__plProgressive = true;
    //     this._data = data;
    // },

    /**
     * @override
     */
    remove: function () {
        this._dataGroup && this._dataGroup.removeAll();
        this._data = null;
    }
});

function createGridClipShape$1(coordSys, seriesModel, cb) {
    var parallelModel = coordSys.model;
    var rect = coordSys.getRect();
    var rectEl = new Rect({
        shape: {
            x: rect.x,
            y: rect.y,
            width: rect.width,
            height: rect.height
        }
    });

    var dim = parallelModel.get('layout') === 'horizontal' ? 'width' : 'height';
    rectEl.setShape(dim, 0);
    initProps(rectEl, {
        shape: {
            width: rect.width,
            height: rect.height
        }
    }, seriesModel, cb);
    return rectEl;
}

function createLinePoints(data, dataIndex, dimensions, coordSys) {
    var points = [];
    for (var i = 0; i < dimensions.length; i++) {
        var dimName = dimensions[i];
        var value = data.get(data.mapDimension(dimName), dataIndex);
        if (!isEmptyValue(value, coordSys.getAxis(dimName).type)) {
            points.push(coordSys.dataToPoint(value, dimName));
        }
    }
    return points;
}

function addEl(data, dataGroup, dataIndex, dimensions, coordSys) {
    var points = createLinePoints(data, dataIndex, dimensions, coordSys);
    var line = new Polyline({
        shape: {points: points},
        silent: true,
        z2: 10
    });
    dataGroup.add(line);
    data.setItemGraphicEl(dataIndex, line);
}

function updateElCommon(data, smooth) {
    var seriesStyleModel = data.hostModel.getModel('lineStyle');
    var lineStyle = seriesStyleModel.getLineStyle();
    data.eachItemGraphicEl(function (line, dataIndex) {
        if (data.hasItemOption) {
            var itemModel = data.getItemModel(dataIndex);
            var lineStyleModel = itemModel.getModel('lineStyle', seriesStyleModel);
            lineStyle = lineStyleModel.getLineStyle(['color', 'stroke']);
        }

        line.useStyle(extend(lineStyle, {
            fill: null,
            // lineStyle.color have been set to itemVisual in module:echarts/visual/seriesColor.
            stroke: data.getItemVisual(dataIndex, 'color'),
            // lineStyle.opacity have been set to itemVisual in parallelVisual.
            opacity: data.getItemVisual(dataIndex, 'opacity')
        }));

        line.shape.smooth = smooth;
    });
}

// function simpleDiff(oldData, newData, dimensions) {
//     var oldLen;
//     if (!oldData
//         || !oldData.__plProgressive
//         || (oldLen = oldData.count()) !== newData.count()
//     ) {
//         return true;
//     }

//     var dimLen = dimensions.length;
//     for (var i = 0; i < oldLen; i++) {
//         for (var j = 0; j < dimLen; j++) {
//             if (oldData.get(dimensions[j], i) !== newData.get(dimensions[j], i)) {
//                 return true;
//             }
//         }
//     }

//     return false;
// }

// FIXME
// 公用方法?
function isEmptyValue(val, axisType) {
    return axisType === 'category'
        ? val == null
        : (val == null || isNaN(val)); // axisType === 'value'
}

var opacityAccessPath$1 = ['lineStyle', 'normal', 'opacity'];

var parallelVisual = function (ecModel) {

    ecModel.eachSeriesByType('parallel', function (seriesModel) {

        var itemStyleModel = seriesModel.getModel('itemStyle');
        var lineStyleModel = seriesModel.getModel('lineStyle');
        var globalColors = ecModel.get('color');

        var color = lineStyleModel.get('color')
            || itemStyleModel.get('color')
            || globalColors[seriesModel.seriesIndex % globalColors.length];
        var inactiveOpacity = seriesModel.get('inactiveOpacity');
        var activeOpacity = seriesModel.get('activeOpacity');
        var lineStyle = seriesModel.getModel('lineStyle').getLineStyle();

        var coordSys = seriesModel.coordinateSystem;
        var data = seriesModel.getData();

        var opacityMap = {
            normal: lineStyle.opacity,
            active: activeOpacity,
            inactive: inactiveOpacity
        };

        coordSys.eachActiveState(data, function (activeState, dataIndex) {
            var itemModel = data.getItemModel(dataIndex);
            var opacity = opacityMap[activeState];
            if (activeState === 'normal') {
                var itemOpacity = itemModel.get(opacityAccessPath$1, true);
                itemOpacity != null && (opacity = itemOpacity);
            }
            data.setItemVisual(dataIndex, 'opacity', opacity);
        });

        data.setVisual('color', color);
    });
};

registerVisual(parallelVisual);

/**
 * @file Get initial data and define sankey view's series model
 * @author Deqing Li(annong035@gmail.com)
 */

var SankeySeries = SeriesModel.extend({

    type: 'series.sankey',

    layoutInfo: null,

    /**
     * Init a graph data structure from data in option series
     *
     * @param  {Object} option  the object used to config echarts view
     * @return {module:echarts/data/List} storage initial data
     */
    getInitialData: function (option) {
        var links = option.edges || option.links;
        var nodes = option.data || option.nodes;
        if (nodes && links) {
            var graph = createGraphFromNodeEdge(nodes, links, this, true);
            return graph.data;
        }
    },

    /**
     * Return the graphic data structure
     *
     * @return {module:echarts/data/Graph} graphic data structure
     */
    getGraph: function () {
        return this.getData().graph;
    },

    /**
     * Get edge data of graphic data structure
     *
     * @return {module:echarts/data/List} data structure of list
     */
    getEdgeData: function () {
        return this.getGraph().edgeData;
    },

    /**
     * @override
     */
    formatTooltip: function (dataIndex, multipleSeries, dataType) {
        // dataType === 'node' or empty do not show tooltip by default
        if (dataType === 'edge') {
            var params = this.getDataParams(dataIndex, dataType);
            var rawDataOpt = params.data;
            var html = rawDataOpt.source + ' -- ' + rawDataOpt.target;
            if (params.value) {
                html += ' : ' + params.value;
            }
            return encodeHTML(html);
        }

        return SankeySeries.superCall(this, 'formatTooltip', dataIndex, multipleSeries);
    },

    defaultOption: {
        zlevel: 0,
        z: 2,

        coordinateSystem: 'view',

        layout: null,

        // the position of the whole view
        left: '5%',
        top: '5%',
        right: '20%',
        bottom: '5%',

        // the dx of the node
        nodeWidth: 20,

        // the vertical distance between two nodes
        nodeGap: 8,

        // the number of iterations to change the position of the node
        layoutIterations: 32,

        label: {
            show: true,
            position: 'right',
            color: '#000',
            fontSize: 12
        },

        itemStyle: {
            borderWidth: 1,
            borderColor: '#333'
        },

        lineStyle: {
            color: '#314656',
            opacity: 0.2,
            curveness: 0.5
        },

        emphasis: {
            label: {
                show: true
            },
            lineStyle: {
                opacity: 0.6
            }
        },

        animationEasing: 'linear',

        animationDuration: 1000
    }

});

/**
 * @file  The file used to draw sankey view
 * @author  Deqing Li(annong035@gmail.com)
 */

var SankeyShape = extendShape({
    shape: {
        x1: 0, y1: 0,
        x2: 0, y2: 0,
        cpx1: 0, cpy1: 0,
        cpx2: 0, cpy2: 0,

        extent: 0
    },

    buildPath: function (ctx, shape) {
        var halfExtent = shape.extent / 2;
        ctx.moveTo(shape.x1, shape.y1 - halfExtent);
        ctx.bezierCurveTo(
            shape.cpx1, shape.cpy1 - halfExtent,
            shape.cpx2, shape.cpy2 - halfExtent,
            shape.x2, shape.y2 - halfExtent
        );
        ctx.lineTo(shape.x2, shape.y2 + halfExtent);
        ctx.bezierCurveTo(
            shape.cpx2, shape.cpy2 + halfExtent,
            shape.cpx1, shape.cpy1 + halfExtent,
            shape.x1, shape.y1 + halfExtent
        );
        ctx.closePath();
    }
});

extendChartView({

    type: 'sankey',

    /**
     * @private
     * @type {module:echarts/chart/sankey/SankeySeries}
     */
    _model: null,

    render: function (seriesModel, ecModel, api) {
        var graph = seriesModel.getGraph();
        var group = this.group;
        var layoutInfo = seriesModel.layoutInfo;
        var nodeData = seriesModel.getData();
        var edgeData = seriesModel.getData('edge');

        this._model = seriesModel;

        group.removeAll();

        group.attr('position', [layoutInfo.x, layoutInfo.y]);

        // generate a bezire Curve for each edge
        graph.eachEdge(function (edge) {
            var curve = new SankeyShape();

            curve.dataIndex = edge.dataIndex;
            curve.seriesIndex = seriesModel.seriesIndex;
            curve.dataType = 'edge';

            var lineStyleModel = edge.getModel('lineStyle');
            var curvature = lineStyleModel.get('curveness');
            var n1Layout = edge.node1.getLayout();
            var n2Layout = edge.node2.getLayout();
            var edgeLayout = edge.getLayout();

            curve.shape.extent = Math.max(1, edgeLayout.dy);

            var x1 = n1Layout.x + n1Layout.dx;
            var y1 = n1Layout.y + edgeLayout.sy + edgeLayout.dy / 2;
            var x2 = n2Layout.x;
            var y2 = n2Layout.y + edgeLayout.ty + edgeLayout.dy / 2;
            var cpx1 = x1 * (1 - curvature) + x2 * curvature;
            var cpy1 = y1;
            var cpx2 = x1 * curvature + x2 * (1 - curvature);
            var cpy2 = y2;

            curve.setShape({
                x1: x1,
                y1: y1,
                x2: x2,
                y2: y2,
                cpx1: cpx1,
                cpy1: cpy1,
                cpx2: cpx2,
                cpy2: cpy2
            });

            curve.setStyle(lineStyleModel.getItemStyle());
            // Special color, use source node color or target node color
            switch (curve.style.fill) {
                case 'source':
                    curve.style.fill = edge.node1.getVisual('color');
                    break;
                case 'target':
                    curve.style.fill = edge.node2.getVisual('color');
                    break;
            }

            setHoverStyle(curve, edge.getModel('emphasis.lineStyle').getItemStyle());

            group.add(curve);

            edgeData.setItemGraphicEl(edge.dataIndex, curve);
        });

        // generate a rect  for each node
        graph.eachNode(function (node) {
            var layout = node.getLayout();
            var itemModel = node.getModel();
            var labelModel = itemModel.getModel('label');
            var labelHoverModel = itemModel.getModel('emphasis.label');

            var rect = new Rect({
                shape: {
                    x: layout.x,
                    y: layout.y,
                    width: node.getLayout().dx,
                    height: node.getLayout().dy
                },
                style: itemModel.getModel('itemStyle').getItemStyle()
            });

            var hoverStyle = node.getModel('emphasis.itemStyle').getItemStyle();

            setLabelStyle(
                rect.style, hoverStyle, labelModel, labelHoverModel,
                {
                    labelFetcher: seriesModel,
                    labelDataIndex: node.dataIndex,
                    defaultText: node.id,
                    isRectText: true
                }
            );

            rect.setStyle('fill', node.getVisual('color'));

            setHoverStyle(rect, hoverStyle);

            group.add(rect);

            nodeData.setItemGraphicEl(node.dataIndex, rect);

            rect.dataType = 'node';
        });

        if (!this._data && seriesModel.get('animation')) {
            group.setClipPath(createGridClipShape$2(group.getBoundingRect(), seriesModel, function () {
                group.removeClipPath();
            }));
        }

        this._data = seriesModel.getData();
    },

    dispose: function () {}
});

// add animation to the view
function createGridClipShape$2(rect, seriesModel, cb) {
    var rectEl = new Rect({
        shape: {
            x: rect.x - 10,
            y: rect.y - 10,
            width: 0,
            height: rect.height + 20
        }
    });
    initProps(rectEl, {
        shape: {
            width: rect.width + 20,
            height: rect.height + 20
        }
    }, seriesModel, cb);

    return rectEl;
}

/**
 * nest helper used to group by the array.
 * can specified the keys and sort the keys.
 */
function nest() {

    var keysFunction = [];
    var sortKeysFunction = [];

    /**
     * map an Array into the mapObject.
     * @param {Array} array
     * @param {number} depth
     */
    function map$$1(array, depth) {
        if (depth >= keysFunction.length) {
            return array;
        }
        var i = -1;
        var n = array.length;
        var keyFunction = keysFunction[depth++];
        var mapObject = {};
        var valuesByKey = {};

        while (++i < n) {
            var keyValue = keyFunction(array[i]);
            var values = valuesByKey[keyValue];

            if (values) {
                values.push(array[i]);
            }
            else {
                valuesByKey[keyValue] = [array[i]];
            }
        }

        each$1(valuesByKey, function (value, key) {
            mapObject[key] = map$$1(value, depth);
        });

        return mapObject;
    }

    /**
     * transform the Map Object to multidimensional Array
     * @param {Object} map
     * @param {number} depth
     */
    function entriesMap(mapObject, depth) {
        if (depth >= keysFunction.length) {
            return mapObject;
        }
        var array = [];
        var sortKeyFunction = sortKeysFunction[depth++];

        each$1(mapObject, function (value, key) {
            array.push({
                key: key, values: entriesMap(value, depth)
            });
        });

        if (sortKeyFunction) {
            return array.sort(function (a, b) {
                return sortKeyFunction(a.key, b.key);
            });
        }
        else {
            return array;
        }
    }

    return {
        /**
         * specified the key to groupby the arrays.
         * users can specified one more keys.
         * @param {Function} d
         */
        key: function (d) {
            keysFunction.push(d);
            return this;
        },

        /**
         * specified the comparator to sort the keys
         * @param {Function} order
         */
        sortKeys: function (order) {
            sortKeysFunction[keysFunction.length - 1] = order;
            return this;
        },

        /**
         * the array to be grouped by.
         * @param {Array} array
         */
        entries: function (array) {
            return entriesMap(map$$1(array, 0), 0);
        }
    };
}

/**
 * @file The layout algorithm of sankey view
 * @author  Deqing Li(annong035@gmail.com)
 */

var sankeyLayout = function (ecModel, api, payload) {

    ecModel.eachSeriesByType('sankey', function (seriesModel) {

        var nodeWidth = seriesModel.get('nodeWidth');
        var nodeGap = seriesModel.get('nodeGap');

        var layoutInfo = getViewRect$3(seriesModel, api);

        seriesModel.layoutInfo = layoutInfo;

        var width = layoutInfo.width;
        var height = layoutInfo.height;

        var graph = seriesModel.getGraph();

        var nodes = graph.nodes;
        var edges = graph.edges;

        computeNodeValues(nodes);

        var filteredNodes = filter(nodes, function (node) {
            return node.getLayout().value === 0;
        });

        var iterations = filteredNodes.length !== 0
            ? 0 : seriesModel.get('layoutIterations');

        layoutSankey(nodes, edges, nodeWidth, nodeGap, width, height, iterations);
    });
};

/**
 * Get the layout position of the whole view
 *
 * @param {module:echarts/model/Series} seriesModel  the model object of sankey series
 * @param {module:echarts/ExtensionAPI} api  provide the API list that the developer can call
 * @return {module:zrender/core/BoundingRect}  size of rect to draw the sankey view
 */
function getViewRect$3(seriesModel, api) {
    return getLayoutRect(
        seriesModel.getBoxLayoutParams(), {
            width: api.getWidth(),
            height: api.getHeight()
        }
    );
}

function layoutSankey(nodes, edges, nodeWidth, nodeGap, width, height, iterations) {
    computeNodeBreadths(nodes, nodeWidth, width);
    computeNodeDepths(nodes, edges, height, nodeGap, iterations);
    computeEdgeDepths(nodes);
}

/**
 * Compute the value of each node by summing the associated edge's value
 *
 * @param {module:echarts/data/Graph~Node} nodes  node of sankey view
 */
function computeNodeValues(nodes) {
    each$1(nodes, function (node) {
        var value1 = sum(node.outEdges, getEdgeValue);
        var value2 = sum(node.inEdges, getEdgeValue);
        var value = Math.max(value1, value2);
        node.setLayout({value: value}, true);
    });
}

/**
 * Compute the x-position for each node
 *
 * @param {module:echarts/data/Graph~Node} nodes  node of sankey view
 * @param  {number} nodeWidth  the dx of the node
 * @param  {number} width  the whole width of the area to draw the view
 */
function computeNodeBreadths(nodes, nodeWidth, width) {
    var remainNodes = nodes;
    var nextNode = null;
    var x = 0;
    var kx = 0;

    while (remainNodes.length) {
        nextNode = [];
        for (var i = 0, len = remainNodes.length; i < len; i++) {
            var node = remainNodes[i];
            node.setLayout({x: x}, true);
            node.setLayout({dx: nodeWidth}, true);
            for (var j = 0, lenj = node.outEdges.length; j < lenj; j++) {
                nextNode.push(node.outEdges[j].node2);
            }
        }
        remainNodes = nextNode;
        ++x;
    }

    moveSinksRight(nodes, x);
    kx = (width - nodeWidth) / (x - 1);

    scaleNodeBreadths(nodes, kx);
}

/**
 * All the node without outEgdes are assigned maximum x-position and
 *     be aligned in the last column.
 *
 * @param {module:echarts/data/Graph~Node} nodes  node of sankey view
 * @param {number} x  value (x-1) use to assign to node without outEdges
 *     as x-position
 */
function moveSinksRight(nodes, x) {
    each$1(nodes, function (node) {
        if (!node.outEdges.length) {
            node.setLayout({x: x - 1}, true);
        }
    });
}

/**
 * Scale node x-position to the width
 *
 * @param {module:echarts/data/Graph~Node} nodes  node of sankey view
 * @param {number} kx   multiple used to scale nodes
 */
function scaleNodeBreadths(nodes, kx) {
    each$1(nodes, function (node) {
        var nodeX = node.getLayout().x * kx;
        node.setLayout({x: nodeX}, true);
    });
}

/**
 * Using Gauss-Seidel iterations method to compute the node depth(y-position)
 *
 * @param {module:echarts/data/Graph~Node} nodes  node of sankey view
 * @param {module:echarts/data/Graph~Edge} edges  edge of sankey view
 * @param {number} height  the whole height of the area to draw the view
 * @param {number} nodeGap  the vertical distance between two nodes
 *     in the same column.
 * @param {number} iterations  the number of iterations for the algorithm
 */
function computeNodeDepths(nodes, edges, height, nodeGap, iterations) {
    var nodesByBreadth = nest()
        .key(function (d) {
            return d.getLayout().x;
        })
        .sortKeys(ascending)
        .entries(nodes)
        .map(function (d) {
            return d.values;
        });

    initializeNodeDepth(nodes, nodesByBreadth, edges, height, nodeGap);
    resolveCollisions(nodesByBreadth, nodeGap, height);

    for (var alpha = 1; iterations > 0; iterations--) {
        // 0.99 is a experience parameter, ensure that each iterations of
        // changes as small as possible.
        alpha *= 0.99;
        relaxRightToLeft(nodesByBreadth, alpha);
        resolveCollisions(nodesByBreadth, nodeGap, height);
        relaxLeftToRight(nodesByBreadth, alpha);
        resolveCollisions(nodesByBreadth, nodeGap, height);
    }
}

/**
 * Compute the original y-position for each node
 *
 * @param {module:echarts/data/Graph~Node} nodes  node of sankey view
 * @param {Array.<Array.<module:echarts/data/Graph~Node>>} nodesByBreadth
 *     group by the array of all sankey nodes based on the nodes x-position.
 * @param {module:echarts/data/Graph~Edge} edges  edge of sankey view
 * @param {number} height  the whole height of the area to draw the view
 * @param {number} nodeGap  the vertical distance between two nodes
 */
function initializeNodeDepth(nodes, nodesByBreadth, edges, height, nodeGap) {
    var kyArray = [];
    each$1(nodesByBreadth, function (nodes) {
        var n = nodes.length;
        var sum = 0;
        each$1(nodes, function (node) {
            sum += node.getLayout().value;
        });
        var ky = (height - (n - 1) * nodeGap) / sum;
        kyArray.push(ky);
    });

    kyArray.sort(function (a, b) {
        return a - b;
    });
    var ky0 = kyArray[0];

    each$1(nodesByBreadth, function (nodes) {
        each$1(nodes, function (node, i) {
            node.setLayout({y: i}, true);
            var nodeDy = node.getLayout().value * ky0;
            node.setLayout({dy: nodeDy}, true);
        });
    });

    each$1(edges, function (edge) {
        var edgeDy = +edge.getValue() * ky0;
        edge.setLayout({dy: edgeDy}, true);
    });
}

/**
 * Resolve the collision of initialized depth (y-position)
 *
 * @param {Array.<Array.<module:echarts/data/Graph~Node>>} nodesByBreadth
 *     group by the array of all sankey nodes based on the nodes x-position.
 * @param {number} nodeGap  the vertical distance between two nodes
 * @param {number} height  the whole height of the area to draw the view
 */
function resolveCollisions(nodesByBreadth, nodeGap, height) {
    each$1(nodesByBreadth, function (nodes) {
        var node;
        var dy;
        var y0 = 0;
        var n = nodes.length;
        var i;

        nodes.sort(ascendingDepth);

        for (i = 0; i < n; i++) {
            node = nodes[i];
            dy = y0 - node.getLayout().y;
            if (dy > 0) {
                var nodeY = node.getLayout().y + dy;
                node.setLayout({y: nodeY}, true);
            }
            y0 = node.getLayout().y + node.getLayout().dy + nodeGap;
        }

        // if the bottommost node goes outside the bounds, push it back up
        dy = y0 - nodeGap - height;
        if (dy > 0) {
            var nodeY = node.getLayout().y - dy;
            node.setLayout({y: nodeY}, true);
            y0 = node.getLayout().y;
            for (i = n - 2; i >= 0; --i) {
                node = nodes[i];
                dy = node.getLayout().y + node.getLayout().dy + nodeGap - y0;
                if (dy > 0) {
                    nodeY = node.getLayout().y - dy;
                    node.setLayout({y: nodeY}, true);
                }
                y0 = node.getLayout().y;
            }
        }
    });
}

/**
 * Change the y-position of the nodes, except most the right side nodes
 *
 * @param {Array.<Array.<module:echarts/data/Graph~Node>>} nodesByBreadth
 *     group by the array of all sankey nodes based on the node x-position.
 * @param {number} alpha  parameter used to adjust the nodes y-position
 */
function relaxRightToLeft(nodesByBreadth, alpha) {
    each$1(nodesByBreadth.slice().reverse(), function (nodes) {
        each$1(nodes, function (node) {
            if (node.outEdges.length) {
                var y = sum(node.outEdges, weightedTarget) / sum(node.outEdges, getEdgeValue);
                var nodeY = node.getLayout().y + (y - center$1(node)) * alpha;
                node.setLayout({y: nodeY}, true);
            }
        });
    });
}

function weightedTarget(edge) {
    return center$1(edge.node2) * edge.getValue();
}

/**
 * Change the y-position of the nodes, except most the left side nodes
 *
 * @param {Array.<Array.<module:echarts/data/Graph~Node>>} nodesByBreadth
 *     group by the array of all sankey nodes based on the node x-position.
 * @param {number} alpha  parameter used to adjust the nodes y-position
 */
function relaxLeftToRight(nodesByBreadth, alpha) {
    each$1(nodesByBreadth, function (nodes) {
        each$1(nodes, function (node) {
            if (node.inEdges.length) {
                var y = sum(node.inEdges, weightedSource) / sum(node.inEdges, getEdgeValue);
                var nodeY = node.getLayout().y + (y - center$1(node)) * alpha;
                node.setLayout({y: nodeY}, true);
            }
        });
    });
}

function weightedSource(edge) {
    return center$1(edge.node1) * edge.getValue();
}

/**
 * Compute the depth(y-position) of each edge
 *
 * @param {module:echarts/data/Graph~Node} nodes  node of sankey view
 */
function computeEdgeDepths(nodes) {
    each$1(nodes, function (node) {
        node.outEdges.sort(ascendingTargetDepth);
        node.inEdges.sort(ascendingSourceDepth);
    });
    each$1(nodes, function (node) {
        var sy = 0;
        var ty = 0;
        each$1(node.outEdges, function (edge) {
            edge.setLayout({sy: sy}, true);
            sy += edge.getLayout().dy;
        });
        each$1(node.inEdges, function (edge) {
            edge.setLayout({ty: ty}, true);
            ty += edge.getLayout().dy;
        });
    });
}

function ascendingTargetDepth(a, b) {
    return a.node2.getLayout().y - b.node2.getLayout().y;
}

function ascendingSourceDepth(a, b) {
    return a.node1.getLayout().y - b.node1.getLayout().y;
}

function sum(array, f) {
    var sum = 0;
    var len = array.length;
    var i = -1;
    while (++i < len) {
        var value = +f.call(array, array[i], i);
        if (!isNaN(value)) {
            sum += value;
        }
    }
    return sum;
}

function center$1(node) {
    return node.getLayout().y + node.getLayout().dy / 2;
}

function ascendingDepth(a, b) {
    return a.getLayout().y - b.getLayout().y;
}

function ascending(a, b) {
    return a < b ? -1 : a > b ? 1 : a === b ? 0 : NaN;
}

function getEdgeValue(edge) {
    return edge.getValue();
}

/**
 * @file Visual encoding for sankey view
 * @author  Deqing Li(annong035@gmail.com)
 */

var sankeyVisual = function (ecModel, payload) {
    ecModel.eachSeriesByType('sankey', function (seriesModel) {
        var graph = seriesModel.getGraph();
        var nodes = graph.nodes;

        nodes.sort(function (a, b) {
            return a.getLayout().value - b.getLayout().value;
        });

        var minValue = nodes[0].getLayout().value;
        var maxValue = nodes[nodes.length - 1].getLayout().value;

        each$1(nodes, function (node) {
            var mapping = new VisualMapping({
                type: 'color',
                mappingMethod: 'linear',
                dataExtent: [minValue, maxValue],
                visual: seriesModel.get('color')
            });

            var mapValueToColor = mapping.mapValueToVisual(node.getLayout().value);
            node.setVisual('color', mapValueToColor);
            // If set itemStyle.normal.color
            var itemModel = node.getModel();
            var customColor = itemModel.get('itemStyle.color');
            if (customColor != null) {
                node.setVisual('color', customColor);
            }
        });

    });
};

registerLayout(sankeyLayout);
registerVisual(sankeyVisual);

/**
 * @module echarts/chart/helper/Symbol
 */

var WhiskerPath = Path.extend({

    type: 'whiskerInBox',

    shape: {},

    buildPath: function (ctx, shape) {
        for (var i in shape) {
            if (shape.hasOwnProperty(i) && i.indexOf('ends') === 0) {
                var pts = shape[i];
                ctx.moveTo(pts[0][0], pts[0][1]);
                ctx.lineTo(pts[1][0], pts[1][1]);
            }
        }
    }
});

/**
 * @constructor
 * @alias {module:echarts/chart/helper/WhiskerBox}
 * @param {module:echarts/data/List} data
 * @param {number} idx
 * @param {Function} styleUpdater
 * @param {boolean} isInit
 * @extends {module:zrender/graphic/Group}
 */
function WhiskerBox(data, idx, styleUpdater, isInit) {
    Group.call(this);

    /**
     * @type {number}
     * @readOnly
     */
    this.bodyIndex;

    /**
     * @type {number}
     * @readOnly
     */
    this.whiskerIndex;

    /**
     * @type {Function}
     */
    this.styleUpdater = styleUpdater;

    this._createContent(data, idx, isInit);

    this.updateData(data, idx, isInit);

    /**
     * Last series model.
     * @type {module:echarts/model/Series}
     */
    this._seriesModel;
}

var whiskerBoxProto = WhiskerBox.prototype;

whiskerBoxProto._createContent = function (data, idx, isInit) {
    var itemLayout = data.getItemLayout(idx);
    var constDim = itemLayout.chartLayout === 'horizontal' ? 1 : 0;
    var count = 0;

    // Whisker element.
    this.add(new Polygon({
        shape: {
            points: isInit
                ? transInit(itemLayout.bodyEnds, constDim, itemLayout)
                : itemLayout.bodyEnds
        },
        style: {strokeNoScale: true},
        z2: 100
    }));
    this.bodyIndex = count++;

    // Box element.
    var whiskerEnds = map(itemLayout.whiskerEnds, function (ends) {
        return isInit ? transInit(ends, constDim, itemLayout) : ends;
    });
    this.add(new WhiskerPath({
        shape: makeWhiskerEndsShape(whiskerEnds),
        style: {strokeNoScale: true},
        z2: 100
    }));
    this.whiskerIndex = count++;
};

function transInit(points, dim, itemLayout) {
    return map(points, function (point) {
        point = point.slice();
        point[dim] = itemLayout.initBaseline;
        return point;
    });
}

function makeWhiskerEndsShape(whiskerEnds) {
    // zr animation only support 2-dim array.
    var shape = {};
    each$1(whiskerEnds, function (ends, i) {
        shape['ends' + i] = ends;
    });
    return shape;
}

/**
 * Update symbol properties
 * @param  {module:echarts/data/List} data
 * @param  {number} idx
 */
whiskerBoxProto.updateData = function (data, idx, isInit) {
    var seriesModel = this._seriesModel = data.hostModel;
    var itemLayout = data.getItemLayout(idx);
    var updateMethod = graphic[isInit ? 'initProps' : 'updateProps'];
    // this.childAt(this.bodyIndex).stopAnimation(true);
    // this.childAt(this.whiskerIndex).stopAnimation(true);
    updateMethod(
        this.childAt(this.bodyIndex),
        {shape: {points: itemLayout.bodyEnds}},
        seriesModel, idx
    );
    updateMethod(
        this.childAt(this.whiskerIndex),
        {shape: makeWhiskerEndsShape(itemLayout.whiskerEnds)},
        seriesModel, idx
    );

    this.styleUpdater.call(null, this, data, idx);
};

inherits(WhiskerBox, Group);


/**
 * @constructor
 * @alias module:echarts/chart/helper/WhiskerBoxDraw
 */
function WhiskerBoxDraw(styleUpdater) {
    this.group = new Group();
    this.styleUpdater = styleUpdater;
}

var whiskerBoxDrawProto = WhiskerBoxDraw.prototype;

/**
 * Update symbols draw by new data
 * @param {module:echarts/data/List} data
 */
whiskerBoxDrawProto.updateData = function (data) {
    var group = this.group;
    var oldData = this._data;
    var styleUpdater = this.styleUpdater;

    // There is no old data only when first rendering or switching from
    // stream mode to normal mode, where previous elements should be removed.
    if (!this._data) {
        group.removeAll();
    }

    data.diff(oldData)
        .add(function (newIdx) {
            if (data.hasValue(newIdx)) {
                var symbolEl = new WhiskerBox(data, newIdx, styleUpdater, true);
                data.setItemGraphicEl(newIdx, symbolEl);
                group.add(symbolEl);
            }
        })
        .update(function (newIdx, oldIdx) {
            var symbolEl = oldData.getItemGraphicEl(oldIdx);

            // Empty data
            if (!data.hasValue(newIdx)) {
                group.remove(symbolEl);
                return;
            }

            if (!symbolEl) {
                symbolEl = new WhiskerBox(data, newIdx, styleUpdater);
            }
            else {
                symbolEl.updateData(data, newIdx);
            }

            // Add back
            group.add(symbolEl);

            data.setItemGraphicEl(newIdx, symbolEl);
        })
        .remove(function (oldIdx) {
            var el = oldData.getItemGraphicEl(oldIdx);
            el && group.remove(el);
        })
        .execute();

    this._data = data;
};

whiskerBoxDrawProto.incrementalPrepareUpdate = function (seriesModel, ecModel, api) {
    this.group.removeAll();
    this._data = null;
};

whiskerBoxDrawProto.incrementalUpdate = function (params, seriesModel, ecModel, api) {
    var data = seriesModel.getData();
    for (var idx = params.start; idx < params.end; idx++) {
        var symbolEl = new WhiskerBox(data, idx, this.styleUpdater, true);
        symbolEl.incremental = true;
        this.group.add(symbolEl);
    }
};

/**
 * Remove symbols.
 * @param {module:echarts/data/List} data
 */
whiskerBoxDrawProto.remove = function () {
    var group = this.group;
    var data = this._data;
    this._data = null;
    data && data.eachItemGraphicEl(function (el) {
        el && group.remove(el);
    });
};

var seriesModelMixin = {

    /**
     * @private
     * @type {string}
     */
    _baseAxisDim: null,

    /**
     * @override
     */
    getInitialData: function (option, ecModel) {
        // When both types of xAxis and yAxis are 'value', layout is
        // needed to be specified by user. Otherwise, layout can be
        // judged by which axis is category.

        var ordinalMeta;

        var xAxisModel = ecModel.getComponent('xAxis', this.get('xAxisIndex'));
        var yAxisModel = ecModel.getComponent('yAxis', this.get('yAxisIndex'));
        var xAxisType = xAxisModel.get('type');
        var yAxisType = yAxisModel.get('type');
        var addOrdinal;

        // FIXME
        // 考虑时间轴

        if (xAxisType === 'category') {
            option.layout = 'horizontal';
            ordinalMeta = xAxisModel.getOrdinalMeta();
            addOrdinal = true;
        }
        else if (yAxisType  === 'category') {
            option.layout = 'vertical';
            ordinalMeta = yAxisModel.getOrdinalMeta();
            addOrdinal = true;
        }
        else {
            option.layout = option.layout || 'horizontal';
        }

        var coordDims = ['x', 'y'];
        var baseAxisDimIndex = option.layout === 'horizontal' ? 0 : 1;
        var baseAxisDim = this._baseAxisDim = coordDims[baseAxisDimIndex];
        var otherAxisDim = coordDims[1 - baseAxisDimIndex];
        var axisModels = [xAxisModel, yAxisModel];
        var baseAxisType = axisModels[baseAxisDimIndex].get('type');
        var otherAxisType = axisModels[1 - baseAxisDimIndex].get('type');
        var data = option.data;

        // ??? FIXME make a stage to perform data transfrom.
        // MUST create a new data, consider setOption({}) again.
        if (data && addOrdinal) {
            var newOptionData = [];
            each$1(data, function (item, index) {
                var newItem;
                if (item.value && isArray(item.value)) {
                    newItem = item.value.slice();
                    item.value.unshift(index);
                }
                else if (isArray(item)) {
                    newItem = item.slice();
                    item.unshift(index);
                }
                else {
                    newItem = item;
                }
                newOptionData.push(newItem);
            });
            option.data = newOptionData;
        }

        var defaultValueDimensions = this.defaultValueDimensions;

        return createListSimply(
            this,
            {
                coordDimensions: [{
                    name: baseAxisDim,
                    type: getDimensionTypeByAxis(baseAxisType),
                    ordinalMeta: ordinalMeta,
                    otherDims: {
                        tooltip: false,
                        itemName: 0
                    },
                    dimsDef: ['base']
                }, {
                    name: otherAxisDim,
                    type: getDimensionTypeByAxis(otherAxisType),
                    dimsDef: defaultValueDimensions.slice()
                }],
                dimensionsCount: defaultValueDimensions.length + 1
            }
        );
    },

    /**
     * If horizontal, base axis is x, otherwise y.
     * @override
     */
    getBaseAxis: function () {
        var dim = this._baseAxisDim;
        return this.ecModel.getComponent(dim + 'Axis', this.get(dim + 'AxisIndex')).axis;
    }

};

var viewMixin = {

    init: function () {
        /**
         * Old data.
         * @private
         * @type {module:echarts/chart/helper/WhiskerBoxDraw}
         */
        var whiskerBoxDraw = this._whiskerBoxDraw = new WhiskerBoxDraw(
            this.getStyleUpdater()
        );
        this.group.add(whiskerBoxDraw.group);
    },

    render: function (seriesModel, ecModel, api) {
        this._whiskerBoxDraw.updateData(seriesModel.getData());
    },

    incrementalPrepareRender: function (seriesModel, ecModel, api) {
        this._whiskerBoxDraw.incrementalPrepareUpdate(seriesModel, ecModel, api);
    },

    incrementalRender: function (params, seriesModel, ecModel, api) {
        this._whiskerBoxDraw.incrementalUpdate(params, seriesModel, ecModel, api);
    },

    remove: function (ecModel) {
        this._whiskerBoxDraw.remove();
    }
};

var BoxplotSeries = SeriesModel.extend({

    type: 'series.boxplot',

    dependencies: ['xAxis', 'yAxis', 'grid'],

    // TODO
    // box width represents group size, so dimension should have 'size'.

    /**
     * @see <https://en.wikipedia.org/wiki/Box_plot>
     * The meanings of 'min' and 'max' depend on user,
     * and echarts do not need to know it.
     * @readOnly
     */
    defaultValueDimensions: ['min', 'Q1', 'median', 'Q3', 'max'],

    /**
     * @type {Array.<string>}
     * @readOnly
     */
    dimensions: null,

    /**
     * @override
     */
    defaultOption: {
        zlevel: 0,                  // 一级层叠
        z: 2,                       // 二级层叠
        coordinateSystem: 'cartesian2d',
        legendHoverLink: true,

        hoverAnimation: true,

        // xAxisIndex: 0,
        // yAxisIndex: 0,

        layout: null,               // 'horizontal' or 'vertical'
        boxWidth: [7, 50],       // [min, max] can be percent of band width.

        itemStyle: {
            color: '#fff',
            borderWidth: 1
        },

        emphasis: {
            itemStyle: {
                borderWidth: 2,
                shadowBlur: 5,
                shadowOffsetX: 2,
                shadowOffsetY: 2,
                shadowColor: 'rgba(0,0,0,0.4)'
            }
        },

        animationEasing: 'elasticOut',
        animationDuration: 800
    }
});

mixin(BoxplotSeries, seriesModelMixin, true);

var BoxplotView = Chart.extend({

    type: 'boxplot',

    getStyleUpdater: function () {
        return updateStyle$1;
    },

    dispose: noop
});

mixin(BoxplotView, viewMixin, true);

// Update common properties
var normalStyleAccessPath$1 = ['itemStyle'];
var emphasisStyleAccessPath$1 = ['emphasis', 'itemStyle'];

function updateStyle$1(itemGroup, data, idx) {
    var itemModel = data.getItemModel(idx);
    var normalItemStyleModel = itemModel.getModel(normalStyleAccessPath$1);
    var borderColor = data.getItemVisual(idx, 'color');

    // Exclude borderColor.
    var itemStyle = normalItemStyleModel.getItemStyle(['borderColor']);

    var whiskerEl = itemGroup.childAt(itemGroup.whiskerIndex);
    whiskerEl.style.set(itemStyle);
    whiskerEl.style.stroke = borderColor;
    whiskerEl.dirty();

    var bodyEl = itemGroup.childAt(itemGroup.bodyIndex);
    bodyEl.style.set(itemStyle);
    bodyEl.style.stroke = borderColor;
    bodyEl.dirty();

    var hoverStyle = itemModel.getModel(emphasisStyleAccessPath$1).getItemStyle();
    setHoverStyle(itemGroup, hoverStyle);
}

var borderColorQuery = ['itemStyle', 'borderColor'];

var boxplotVisual = function (ecModel, api) {

    var globalColors = ecModel.get('color');

    ecModel.eachRawSeriesByType('boxplot', function (seriesModel) {

        var defaulColor = globalColors[seriesModel.seriesIndex % globalColors.length];
        var data = seriesModel.getData();

        data.setVisual({
            legendSymbol: 'roundRect',
            // Use name 'color' but not 'borderColor' for legend usage and
            // visual coding from other component like dataRange.
            color: seriesModel.get(borderColorQuery) || defaulColor
        });

        // Only visible series has each data be visual encoded
        if (!ecModel.isSeriesFiltered(seriesModel)) {
            data.each(function (idx) {
                var itemModel = data.getItemModel(idx);
                data.setItemVisual(
                    idx,
                    {color: itemModel.get(borderColorQuery, true)}
                );
            });
        }
    });

};

var each$14 = each$1;

var boxplotLayout = function (ecModel) {

    var groupResult = groupSeriesByAxis(ecModel);

    each$14(groupResult, function (groupItem) {
        var seriesModels = groupItem.seriesModels;

        if (!seriesModels.length) {
            return;
        }

        calculateBase(groupItem);

        each$14(seriesModels, function (seriesModel, idx) {
            layoutSingleSeries(
                seriesModel,
                groupItem.boxOffsetList[idx],
                groupItem.boxWidthList[idx]
            );
        });
    });
};

/**
 * Group series by axis.
 */
function groupSeriesByAxis(ecModel) {
    var result = [];
    var axisList = [];

    ecModel.eachSeriesByType('boxplot', function (seriesModel) {
        var baseAxis = seriesModel.getBaseAxis();
        var idx = indexOf(axisList, baseAxis);

        if (idx < 0) {
            idx = axisList.length;
            axisList[idx] = baseAxis;
            result[idx] = {axis: baseAxis, seriesModels: []};
        }

        result[idx].seriesModels.push(seriesModel);
    });

    return result;
}

/**
 * Calculate offset and box width for each series.
 */
function calculateBase(groupItem) {
    var extent;
    var baseAxis = groupItem.axis;
    var seriesModels = groupItem.seriesModels;
    var seriesCount = seriesModels.length;

    var boxWidthList = groupItem.boxWidthList = [];
    var boxOffsetList = groupItem.boxOffsetList = [];
    var boundList = [];

    var bandWidth;
    if (baseAxis.type === 'category') {
        bandWidth = baseAxis.getBandWidth();
    }
    else {
        var maxDataCount = 0;
        each$14(seriesModels, function (seriesModel) {
            maxDataCount = Math.max(maxDataCount, seriesModel.getData().count());
        });
        extent = baseAxis.getExtent(),
        Math.abs(extent[1] - extent[0]) / maxDataCount;
    }

    each$14(seriesModels, function (seriesModel) {
        var boxWidthBound = seriesModel.get('boxWidth');
        if (!isArray(boxWidthBound)) {
            boxWidthBound = [boxWidthBound, boxWidthBound];
        }
        boundList.push([
            parsePercent$1(boxWidthBound[0], bandWidth) || 0,
            parsePercent$1(boxWidthBound[1], bandWidth) || 0
        ]);
    });

    var availableWidth = bandWidth * 0.8 - 2;
    var boxGap = availableWidth / seriesCount * 0.3;
    var boxWidth = (availableWidth - boxGap * (seriesCount - 1)) / seriesCount;
    var base = boxWidth / 2 - availableWidth / 2;

    each$14(seriesModels, function (seriesModel, idx) {
        boxOffsetList.push(base);
        base += boxGap + boxWidth;

        boxWidthList.push(
            Math.min(Math.max(boxWidth, boundList[idx][0]), boundList[idx][1])
        );
    });
}

/**
 * Calculate points location for each series.
 */
function layoutSingleSeries(seriesModel, offset, boxWidth) {
    var coordSys = seriesModel.coordinateSystem;
    var data = seriesModel.getData();
    var halfWidth = boxWidth / 2;
    var chartLayout = seriesModel.get('layout');
    var variableDim = chartLayout === 'horizontal' ? 0 : 1;
    var constDim = 1 - variableDim;
    var coordDims = ['x', 'y'];
    var vDims = [];
    var cDim;

    each$1(data.dimensions, function (dimName) {
        var dimInfo = data.getDimensionInfo(dimName);
        var coordDim = dimInfo.coordDim;
        if (coordDim === coordDims[constDim]) {
            vDims.push(dimName);
        }
        else if (coordDim === coordDims[variableDim]) {
            cDim = dimName;
        }
    });

    if (cDim == null || vDims.length < 5) {
        return;
    }

    data.each([cDim].concat(vDims), function () {
        var args = arguments;
        var axisDimVal = args[0];
        var idx = args[vDims.length + 1];

        var median = getPoint(args[3]);
        var end1 = getPoint(args[1]);
        var end5 = getPoint(args[5]);
        var whiskerEnds = [
            [end1, getPoint(args[2])],
            [end5, getPoint(args[4])]
        ];
        layEndLine(end1);
        layEndLine(end5);
        layEndLine(median);

        var bodyEnds = [];
        addBodyEnd(whiskerEnds[0][1], 0);
        addBodyEnd(whiskerEnds[1][1], 1);

        data.setItemLayout(idx, {
            chartLayout: chartLayout,
            initBaseline: median[constDim],
            median: median,
            bodyEnds: bodyEnds,
            whiskerEnds: whiskerEnds
        });

        function getPoint(val) {
            var p = [];
            p[variableDim] = axisDimVal;
            p[constDim] = val;
            var point;
            if (isNaN(axisDimVal) || isNaN(val)) {
                point = [NaN, NaN];
            }
            else {
                point = coordSys.dataToPoint(p);
                point[variableDim] += offset;
            }
            return point;
        }

        function addBodyEnd(point, start) {
            var point1 = point.slice();
            var point2 = point.slice();
            point1[variableDim] += halfWidth;
            point2[variableDim] -= halfWidth;
            start
                ? bodyEnds.push(point1, point2)
                : bodyEnds.push(point2, point1);
        }

        function layEndLine(endCenter) {
            var line = [endCenter.slice(), endCenter.slice()];
            line[0][variableDim] -= halfWidth;
            line[1][variableDim] += halfWidth;
            whiskerEnds.push(line);
        }
    });
}

registerVisual(boxplotVisual);
registerLayout(boxplotLayout);

var CandlestickSeries = SeriesModel.extend({

    type: 'series.candlestick',

    dependencies: ['xAxis', 'yAxis', 'grid'],

    /**
     * @readOnly
     */
    defaultValueDimensions: ['open', 'close', 'lowest', 'highest'],

    /**
     * @type {Array.<string>}
     * @readOnly
     */
    dimensions: null,

    /**
     * @override
     */
    defaultOption: {
        zlevel: 0,                  // 一级层叠
        z: 2,                       // 二级层叠
        coordinateSystem: 'cartesian2d',
        legendHoverLink: true,

        hoverAnimation: true,

        // xAxisIndex: 0,
        // yAxisIndex: 0,

        layout: null, // 'horizontal' or 'vertical'

        itemStyle: {
            color: '#c23531', // 阳线 positive
            color0: '#314656', // 阴线 negative     '#c23531', '#314656'
            borderWidth: 1,
            // FIXME
            // ec2中使用的是lineStyle.color 和 lineStyle.color0
            borderColor: '#c23531',
            borderColor0: '#314656'
        },

        emphasis: {
            itemStyle: {
                borderWidth: 2
            }
        },

        barMaxWidth: null,
        barMinWidth: null,
        barWidth: null,

        animationUpdate: false,
        animationEasing: 'linear',
        animationDuration: 300
    },

    /**
     * Get dimension for shadow in dataZoom
     * @return {string} dimension name
     */
    getShadowDim: function () {
        return 'open';
    },

    brushSelector: function (dataIndex, data, selectors) {
        var itemLayout = data.getItemLayout(dataIndex);
        return selectors.rect(itemLayout.brushRect);
    }

});

mixin(CandlestickSeries, seriesModelMixin, true);

var CandlestickView = Chart.extend({

    type: 'candlestick',

    getStyleUpdater: function () {
        return updateStyle$2;
    },

    dispose: noop
});

mixin(CandlestickView, viewMixin, true);

// Update common properties
var normalStyleAccessPath$2 = ['itemStyle'];
var emphasisStyleAccessPath$2 = ['emphasis', 'itemStyle'];

function updateStyle$2(itemGroup, data, idx) {
    var itemModel = data.getItemModel(idx);
    var normalItemStyleModel = itemModel.getModel(normalStyleAccessPath$2);
    var color = data.getItemVisual(idx, 'color');
    var borderColor = data.getItemVisual(idx, 'borderColor') || color;

    // Color must be excluded.
    // Because symbol provide setColor individually to set fill and stroke
    var itemStyle = normalItemStyleModel.getItemStyle(
        ['color', 'color0', 'borderColor', 'borderColor0']
    );

    var whiskerEl = itemGroup.childAt(itemGroup.whiskerIndex);
    whiskerEl.useStyle(itemStyle);
    whiskerEl.style.stroke = borderColor;

    var bodyEl = itemGroup.childAt(itemGroup.bodyIndex);
    bodyEl.useStyle(itemStyle);
    bodyEl.style.fill = color;
    bodyEl.style.stroke = borderColor;

    var hoverStyle = itemModel.getModel(emphasisStyleAccessPath$2).getItemStyle();
    setHoverStyle(itemGroup, hoverStyle);
}

var preprocessor = function (option) {
    if (!option || !isArray(option.series)) {
        return;
    }

    // Translate 'k' to 'candlestick'.
    each$1(option.series, function (seriesItem) {
        if (isObject$1(seriesItem) && seriesItem.type === 'k') {
            seriesItem.type = 'candlestick';
        }
    });
};

var positiveBorderColorQuery = ['itemStyle', 'borderColor'];
var negativeBorderColorQuery = ['itemStyle', 'borderColor0'];
var positiveColorQuery = ['itemStyle', 'color'];
var negativeColorQuery = ['itemStyle', 'color0'];

var candlestickVisual = function (ecModel, api) {

    ecModel.eachRawSeriesByType('candlestick', function (seriesModel) {

        var data = seriesModel.getData();

        data.setVisual({
            legendSymbol: 'roundRect'
        });

        // Only visible series has each data be visual encoded
        if (!ecModel.isSeriesFiltered(seriesModel)) {
            data.each(function (idx) {
                var itemModel = data.getItemModel(idx);
                var sign = data.getItemLayout(idx).sign;

                data.setItemVisual(
                    idx,
                    {
                        color: itemModel.get(
                            sign > 0 ? positiveColorQuery : negativeColorQuery
                        ),
                        borderColor: itemModel.get(
                            sign > 0 ? positiveBorderColorQuery : negativeBorderColorQuery
                        )
                    }
                );
            });
        }
    });

};

var retrieve2$1 = retrieve2;

var candlestickLayout = function (ecModel) {

    ecModel.eachSeriesByType('candlestick', function (seriesModel) {

        var coordSys = seriesModel.coordinateSystem;
        var data = seriesModel.getData();
        var candleWidth = calculateCandleWidth(seriesModel, data);
        var chartLayout = seriesModel.get('layout');
        var variableDim = chartLayout === 'horizontal' ? 0 : 1;
        var constDim = 1 - variableDim;
        var coordDims = ['x', 'y'];
        var vDims = [];
        var cDim;

        each$1(data.dimensions, function (dimName) {
            var dimInfo = data.getDimensionInfo(dimName);
            var coordDim = dimInfo.coordDim;
            if (coordDim === coordDims[constDim]) {
                vDims.push(dimName);
            }
            else if (coordDim === coordDims[variableDim]) {
                cDim = dimName;
            }
        });

        if (cDim == null || vDims.length < 4) {
            return;
        }

        var dataIndex = 0;

        data.each([cDim].concat(vDims), function () {
            var args = arguments;
            var axisDimVal = args[0];
            var idx = args[vDims.length + 1];

            var openVal = args[1];
            var closeVal = args[2];
            var lowestVal = args[3];
            var highestVal = args[4];

            var ocLow = Math.min(openVal, closeVal);
            var ocHigh = Math.max(openVal, closeVal);

            var ocLowPoint = getPoint(ocLow);
            var ocHighPoint = getPoint(ocHigh);
            var lowestPoint = getPoint(lowestVal);
            var highestPoint = getPoint(highestVal);

            var whiskerEnds = [
                [
                    subPixelOptimizePoint(highestPoint),
                    subPixelOptimizePoint(ocHighPoint)
                ],
                [
                    subPixelOptimizePoint(lowestPoint),
                    subPixelOptimizePoint(ocLowPoint)
                ]
            ];

            var bodyEnds = [];
            addBodyEnd(ocHighPoint, 0);
            addBodyEnd(ocLowPoint, 1);

            var sign;
            if (openVal > closeVal) {
                sign = -1;
            }
            else if (openVal < closeVal) {
                sign = 1;
            }
            else {
                // If close === open, compare with close of last record
                if (dataIndex > 0) {
                    sign = data.getItemModel(dataIndex - 1).get()[2]
                        <= closeVal
                            ? 1
                            : -1;
                }
                else {
                    // No record of previous, set to be positive
                    sign = 1;
                }
            }

            data.setItemLayout(idx, {
                chartLayout: chartLayout,
                sign: sign,
                initBaseline: openVal > closeVal
                    ? ocHighPoint[constDim] : ocLowPoint[constDim], // open point.
                bodyEnds: bodyEnds,
                whiskerEnds: whiskerEnds,
                brushRect: makeBrushRect()
            });

            ++dataIndex;

            function getPoint(val) {
                var p = [];
                p[variableDim] = axisDimVal;
                p[constDim] = val;
                return (isNaN(axisDimVal) || isNaN(val))
                    ? [NaN, NaN]
                    : coordSys.dataToPoint(p);
            }

            function addBodyEnd(point, start) {
                var point1 = point.slice();
                var point2 = point.slice();

                point1[variableDim] = subPixelOptimize(
                    point1[variableDim] + candleWidth / 2, 1, false
                );
                point2[variableDim] = subPixelOptimize(
                    point2[variableDim] - candleWidth / 2, 1, true
                );

                start
                    ? bodyEnds.push(point1, point2)
                    : bodyEnds.push(point2, point1);
            }

            function makeBrushRect() {
                var pmin = getPoint(Math.min(openVal, closeVal, lowestVal, highestVal));
                var pmax = getPoint(Math.max(openVal, closeVal, lowestVal, highestVal));

                pmin[variableDim] -= candleWidth / 2;
                pmax[variableDim] -= candleWidth / 2;

                return {
                    x: pmin[0],
                    y: pmin[1],
                    width: constDim ? candleWidth : pmax[0] - pmin[0],
                    height: constDim ? pmax[1] - pmin[1] : candleWidth
                };
            }

            function subPixelOptimizePoint(point) {
                point[variableDim] = subPixelOptimize(point[variableDim], 1);
                return point;
            }

        });
    });
};

function calculateCandleWidth(seriesModel, data) {
    var baseAxis = seriesModel.getBaseAxis();
    var extent;

    var bandWidth = baseAxis.type === 'category'
        ? baseAxis.getBandWidth()
        : (
            extent = baseAxis.getExtent(),
            Math.abs(extent[1] - extent[0]) / data.count()
        );

    var barMaxWidth = parsePercent$1(
        retrieve2$1(seriesModel.get('barMaxWidth'), bandWidth),
        bandWidth
    );
    var barMinWidth = parsePercent$1(
        retrieve2$1(seriesModel.get('barMinWidth'), 1),
        bandWidth
    );
    var barWidth = seriesModel.get('barWidth');
    return barWidth != null
        ? parsePercent$1(barWidth, bandWidth)
        // Put max outer to ensure bar visible in spite of overlap.
        : Math.max(Math.min(bandWidth / 2, barMaxWidth), barMinWidth);
}

registerPreprocessor(preprocessor);
registerVisual(candlestickVisual);
registerLayout(candlestickLayout);

SeriesModel.extend({

    type: 'series.effectScatter',

    dependencies: ['grid', 'polar'],

    getInitialData: function (option, ecModel) {
        return createListFromArray(this.getSource(), this);
    },

    brushSelector: 'point',

    defaultOption: {
        coordinateSystem: 'cartesian2d',
        zlevel: 0,
        z: 2,
        legendHoverLink: true,

        effectType: 'ripple',

        progressive: 0,

        // When to show the effect, option: 'render'|'emphasis'
        showEffectOn: 'render',

        // Ripple effect config
        rippleEffect: {
            period: 4,
            // Scale of ripple
            scale: 2.5,
            // Brush type can be fill or stroke
            brushType: 'fill'
        },

        // Cartesian coordinate system
        // xAxisIndex: 0,
        // yAxisIndex: 0,

        // Polar coordinate system
        // polarIndex: 0,

        // Geo coordinate system
        // geoIndex: 0,

        // symbol: null,        // 图形类型
        symbolSize: 10          // 图形大小，半宽（半径）参数，当图形为方向或菱形则总宽度为symbolSize * 2
        // symbolRotate: null,  // 图形旋转控制

        // large: false,
        // Available when large is true
        // largeThreshold: 2000,

        // itemStyle: {
        //     opacity: 1
        // }
    }

});

/**
 * Symbol with ripple effect
 * @module echarts/chart/helper/EffectSymbol
 */

var EFFECT_RIPPLE_NUMBER = 3;

function normalizeSymbolSize$1(symbolSize) {
    if (!isArray(symbolSize)) {
        symbolSize = [+symbolSize, +symbolSize];
    }
    return symbolSize;
}

function updateRipplePath(rippleGroup, effectCfg) {
    rippleGroup.eachChild(function (ripplePath) {
        ripplePath.attr({
            z: effectCfg.z,
            zlevel: effectCfg.zlevel,
            style: {
                stroke: effectCfg.brushType === 'stroke' ? effectCfg.color : null,
                fill: effectCfg.brushType === 'fill' ? effectCfg.color : null
            }
        });
    });
}
/**
 * @constructor
 * @param {module:echarts/data/List} data
 * @param {number} idx
 * @extends {module:zrender/graphic/Group}
 */
function EffectSymbol(data, idx) {
    Group.call(this);

    var symbol = new SymbolClz$1(data, idx);
    var rippleGroup = new Group();
    this.add(symbol);
    this.add(rippleGroup);

    rippleGroup.beforeUpdate = function () {
        this.attr(symbol.getScale());
    };
    this.updateData(data, idx);
}

var effectSymbolProto = EffectSymbol.prototype;

effectSymbolProto.stopEffectAnimation = function () {
    this.childAt(1).removeAll();
};

effectSymbolProto.startEffectAnimation = function (effectCfg) {
    var symbolType = effectCfg.symbolType;
    var color = effectCfg.color;
    var rippleGroup = this.childAt(1);

    for (var i = 0; i < EFFECT_RIPPLE_NUMBER; i++) {
        // var ripplePath = createSymbol(
        //     symbolType, -0.5, -0.5, 1, 1, color
        // );
        // If width/height are set too small (e.g., set to 1) on ios10
        // and macOS Sierra, a circle stroke become a rect, no matter what
        // the scale is set. So we set width/height as 2. See #4136.
        var ripplePath = createSymbol(
            symbolType, -1, -1, 2, 2, color
        );
        ripplePath.attr({
            style: {
                strokeNoScale: true
            },
            z2: 99,
            silent: true,
            scale: [0.5, 0.5]
        });

        var delay = -i / EFFECT_RIPPLE_NUMBER * effectCfg.period + effectCfg.effectOffset;
        // TODO Configurable effectCfg.period
        ripplePath.animate('', true)
            .when(effectCfg.period, {
                scale: [effectCfg.rippleScale / 2, effectCfg.rippleScale / 2]
            })
            .delay(delay)
            .start();
        ripplePath.animateStyle(true)
            .when(effectCfg.period, {
                opacity: 0
            })
            .delay(delay)
            .start();

        rippleGroup.add(ripplePath);
    }

    updateRipplePath(rippleGroup, effectCfg);
};

/**
 * Update effect symbol
 */
effectSymbolProto.updateEffectAnimation = function (effectCfg) {
    var oldEffectCfg = this._effectCfg;
    var rippleGroup = this.childAt(1);

    // Must reinitialize effect if following configuration changed
    var DIFFICULT_PROPS = ['symbolType', 'period', 'rippleScale'];
    for (var i = 0; i < DIFFICULT_PROPS.length; i++) {
        var propName = DIFFICULT_PROPS[i];
        if (oldEffectCfg[propName] !== effectCfg[propName]) {
            this.stopEffectAnimation();
            this.startEffectAnimation(effectCfg);
            return;
        }
    }

    updateRipplePath(rippleGroup, effectCfg);
};

/**
 * Highlight symbol
 */
effectSymbolProto.highlight = function () {
    this.trigger('emphasis');
};

/**
 * Downplay symbol
 */
effectSymbolProto.downplay = function () {
    this.trigger('normal');
};

/**
 * Update symbol properties
 * @param  {module:echarts/data/List} data
 * @param  {number} idx
 */
effectSymbolProto.updateData = function (data, idx) {
    var seriesModel = data.hostModel;

    this.childAt(0).updateData(data, idx);

    var rippleGroup = this.childAt(1);
    var itemModel = data.getItemModel(idx);
    var symbolType = data.getItemVisual(idx, 'symbol');
    var symbolSize = normalizeSymbolSize$1(data.getItemVisual(idx, 'symbolSize'));
    var color = data.getItemVisual(idx, 'color');

    rippleGroup.attr('scale', symbolSize);

    rippleGroup.traverse(function (ripplePath) {
        ripplePath.attr({
            fill: color
        });
    });

    var symbolOffset = itemModel.getShallow('symbolOffset');
    if (symbolOffset) {
        var pos = rippleGroup.position;
        pos[0] = parsePercent$1(symbolOffset[0], symbolSize[0]);
        pos[1] = parsePercent$1(symbolOffset[1], symbolSize[1]);
    }
    rippleGroup.rotation = (itemModel.getShallow('symbolRotate') || 0) * Math.PI / 180 || 0;

    var effectCfg = {};

    effectCfg.showEffectOn = seriesModel.get('showEffectOn');
    effectCfg.rippleScale = itemModel.get('rippleEffect.scale');
    effectCfg.brushType = itemModel.get('rippleEffect.brushType');
    effectCfg.period = itemModel.get('rippleEffect.period') * 1000;
    effectCfg.effectOffset = idx / data.count();
    effectCfg.z = itemModel.getShallow('z') || 0;
    effectCfg.zlevel = itemModel.getShallow('zlevel') || 0;
    effectCfg.symbolType = symbolType;
    effectCfg.color = color;

    this.off('mouseover').off('mouseout').off('emphasis').off('normal');

    if (effectCfg.showEffectOn === 'render') {
        this._effectCfg
            ? this.updateEffectAnimation(effectCfg)
            : this.startEffectAnimation(effectCfg);

        this._effectCfg = effectCfg;
    }
    else {
        // Not keep old effect config
        this._effectCfg = null;

        this.stopEffectAnimation();
        var symbol = this.childAt(0);
        var onEmphasis = function () {
            symbol.highlight();
            if (effectCfg.showEffectOn !== 'render') {
                this.startEffectAnimation(effectCfg);
            }
        };
        var onNormal = function () {
            symbol.downplay();
            if (effectCfg.showEffectOn !== 'render') {
                this.stopEffectAnimation();
            }
        };
        this.on('mouseover', onEmphasis, this)
            .on('mouseout', onNormal, this)
            .on('emphasis', onEmphasis, this)
            .on('normal', onNormal, this);
    }

    this._effectCfg = effectCfg;
};

effectSymbolProto.fadeOut = function (cb) {
    this.off('mouseover').off('mouseout').off('emphasis').off('normal');
    cb && cb();
};

inherits(EffectSymbol, Group);

extendChartView({

    type: 'effectScatter',

    init: function () {
        this._symbolDraw = new SymbolDraw(EffectSymbol);
    },

    render: function (seriesModel, ecModel, api) {
        var data = seriesModel.getData();
        var effectSymbolDraw = this._symbolDraw;
        effectSymbolDraw.updateData(data);
        this.group.add(effectSymbolDraw.group);
    },

    updateTransform: function (seriesModel, ecModel, api) {
        var data = seriesModel.getData();

        this.group.dirty();

        var res = pointsLayout().reset(seriesModel);
        if (res.progress) {
            res.progress({ start: 0, end: data.count() }, data);
        }

        this._symbolDraw.updateLayout(data);
    },

    _updateGroupTransform: function (seriesModel) {
        var coordSys = seriesModel.coordinateSystem;
        if (coordSys && coordSys.getRoamTransform) {
            this.group.transform = clone$2(coordSys.getRoamTransform());
            this.group.decomposeTransform();
        }
    },

    remove: function (ecModel, api) {
        this._symbolDraw && this._symbolDraw.remove(api);
    },

    dispose: function () {}
});

registerVisual(visualSymbol('effectScatter', 'circle'));
registerLayout(pointsLayout('effectScatter'));

var globalObj$1 = typeof window === 'undefined' ? global : window;

var Uint32Arr = globalObj$1.Uint32Array || Array;
var Float64Arr = globalObj$1.Float64Array || Array;

function compatEc2(seriesOpt) {
    var data = seriesOpt.data;
    if (data && data[0] && data[0][0] && data[0][0].coord) {
        if (__DEV__) {
            console.warn('Lines data configuration has been changed to'
                + ' { coords:[[1,2],[2,3]] }');
        }
        seriesOpt.data = map(data, function (itemOpt) {
            var coords = [
                itemOpt[0].coord, itemOpt[1].coord
            ];
            var target = {
                coords: coords
            };
            if (itemOpt[0].name) {
                target.fromName = itemOpt[0].name;
            }
            if (itemOpt[1].name) {
                target.toName = itemOpt[1].name;
            }
            return mergeAll([target, itemOpt[0], itemOpt[1]]);
        });
    }
}

var LinesSeries = SeriesModel.extend({

    type: 'series.lines',

    dependencies: ['grid', 'polar'],

    visualColorAccessPath: 'lineStyle.color',

    init: function (option) {
        // Not using preprocessor because mergeOption may not have series.type
        compatEc2(option);

        var result = this._processFlatCoordsArray(option.data);
        this._flatCoords = result.flatCoords;
        this._flatCoordsOffset = result.flatCoordsOffset;
        if (result.flatCoords) {
            option.data = new Float32Array(result.count);
        }

        LinesSeries.superApply(this, 'init', arguments);
    },

    mergeOption: function (option) {
        compatEc2(option);

        if (option.data) {
            // Only update when have option data to merge.
            var result = this._processFlatCoordsArray(option.data);
            this._flatCoords = result.flatCoords;
            this._flatCoordsOffset = result.flatCoordsOffset;
            if (result.flatCoords) {
                option.data = new Float32Array(result.count);
            }
        }

        LinesSeries.superApply(this, 'mergeOption', arguments);
    },

    appendData: function (params) {
        var result = this._processFlatCoordsArray(params.data);
        if (result.flatCoords) {
            if (!this._flatCoords) {
                this._flatCoords = result.flatCoords;
                this._flatCoordsOffset = result.flatCoordsOffset;
            }
            else {
                this._flatCoords = concatArray(this._flatCoords, result.flatCoords);
                this._flatCoordsOffset = concatArray(this._flatCoordsOffset, result.flatCoordsOffset);
            }
            params.data = new Float32Array(result.count);
        }

        this.getRawData().appendData(params.data);
    },

    _getCoordsFromItemModel: function (idx) {
        var itemModel = this.getData().getItemModel(idx);
        var coords = (itemModel.option instanceof Array)
            ? itemModel.option : itemModel.getShallow('coords');

        if (__DEV__) {
            if (!(coords instanceof Array && coords.length > 0 && coords[0] instanceof Array)) {
                throw new Error('Invalid coords ' + JSON.stringify(coords) + '. Lines must have 2d coords array in data item.');
            }
        }
        return coords;
    },

    getLineCoordsCount: function (idx) {
        if (this._flatCoordsOffset) {
            return this._flatCoordsOffset[idx * 2 + 1];
        }
        else {
            return this._getCoordsFromItemModel(idx).length;
        }
    },

    getLineCoords: function (idx, out) {
        if (this._flatCoordsOffset) {
            var offset = this._flatCoordsOffset[idx * 2];
            var len = this._flatCoordsOffset[idx * 2 + 1];
            for (var i = 0; i < len; i++) {
                out[i] = out[i] || [];
                out[i][0] = this._flatCoords[offset + i * 2];
                out[i][1] = this._flatCoords[offset + i * 2 + 1];
            }
            return len;
        }
        else {
            var coords = this._getCoordsFromItemModel(idx);
            for (var i = 0; i < coords.length; i++) {
                out[i] = out[i] || [];
                out[i][0] = coords[i][0];
                out[i][1] = coords[i][1];
            }
            return coords.length;
        }
    },

    _processFlatCoordsArray: function (data) {
        var startOffset = 0;
        if (this._flatCoords) {
            startOffset = this._flatCoords.length;
        }
        // Stored as a typed array. In format
        // Points Count(2) | x | y | x | y | Points Count(3) | x |  y | x | y | x | y |
        if (typeof data[0] === 'number') {
            var len = data.length;
            // Store offset and len of each segment
            var coordsOffsetAndLenStorage = new Uint32Arr(len);
            var coordsStorage = new Float64Arr(len);
            var coordsCursor = 0;
            var offsetCursor = 0;
            var dataCount = 0;
            for (var i = 0; i < len;) {
                dataCount++;
                var count = data[i++];
                // Offset
                coordsOffsetAndLenStorage[offsetCursor++] = coordsCursor + startOffset;
                // Len
                coordsOffsetAndLenStorage[offsetCursor++] = count;
                for (var k = 0; k < count; k++) {
                    var x = data[i++];
                    var y = data[i++];
                    coordsStorage[coordsCursor++] = x;
                    coordsStorage[coordsCursor++] = y;

                    if (i > len) {
                        if (__DEV__) {
                            throw new Error('Invalid data format.');
                        }
                    }
                }
            }

            return {
                flatCoordsOffset: new Uint32Array(coordsOffsetAndLenStorage.buffer, 0, offsetCursor),
                flatCoords: coordsStorage,
                count: dataCount
            };
        }

        return {
            flatCoordsOffset: null,
            flatCoords: null,
            count: data.length
        };
    },

    getInitialData: function (option, ecModel) {
        if (__DEV__) {
            var CoordSys = CoordinateSystemManager.get(option.coordinateSystem);
            if (!CoordSys) {
                throw new Error('Unkown coordinate system ' + option.coordinateSystem);
            }
        }

        var lineData = new List(['value'], this);
        lineData.hasItemOption = false;

        lineData.initData(option.data, [], function (dataItem, dimName, dataIndex, dimIndex) {
            // dataItem is simply coords
            if (dataItem instanceof Array) {
                return NaN;
            }
            else {
                lineData.hasItemOption = true;
                var value = dataItem.value;
                if (value != null) {
                    return value instanceof Array ? value[dimIndex] : value;
                }
            }
        });

        return lineData;
    },

    formatTooltip: function (dataIndex) {
        var data = this.getData();
        var itemModel = data.getItemModel(dataIndex);
        var name = itemModel.get('name');
        if (name) {
            return name;
        }
        var fromName = itemModel.get('fromName');
        var toName = itemModel.get('toName');
        var html = [];
        fromName != null && html.push(fromName);
        toName != null && html.push(toName);

        return encodeHTML(html.join(' > '));
    },

    preventIncremental: function () {
        return !!this.get('effect.show');
    },

    getProgressive: function () {
        var progressive = this.option.progressive;
        if (progressive == null) {
            return this.option.large ? 1e4 : this.get('progressive');
        }
        return progressive;
    },

    getProgressiveThreshold: function () {
        var progressiveThreshold = this.option.progressiveThreshold;
        if (progressiveThreshold == null) {
            return this.option.large ? 2e4 : this.get('progressiveThreshold');
        }
        return progressiveThreshold;
    },

    defaultOption: {
        coordinateSystem: 'geo',
        zlevel: 0,
        z: 2,
        legendHoverLink: true,

        hoverAnimation: true,
        // Cartesian coordinate system
        xAxisIndex: 0,
        yAxisIndex: 0,

        symbol: ['none', 'none'],
        symbolSize: [10, 10],
        // Geo coordinate system
        geoIndex: 0,

        effect: {
            show: false,
            period: 4,
            // Animation delay. support callback
            // delay: 0,
            // If move with constant speed px/sec
            // period will be ignored if this property is > 0,
            constantSpeed: 0,
            symbol: 'circle',
            symbolSize: 3,
            loop: true,
            // Length of trail, 0 - 1
            trailLength: 0.2
            // Same with lineStyle.color
            // color
        },

        large: false,
        // Available when large is true
        largeThreshold: 2000,

        // If lines are polyline
        // polyline not support curveness, label, animation
        polyline: false,

        label: {
            show: false,
            position: 'end'
            // distance: 5,
            // formatter: 标签文本格式器，同Tooltip.formatter，不支持异步回调
        },

        lineStyle: {
            opacity: 0.5
        }
    }
});

/**
 * Provide effect for line
 * @module echarts/chart/helper/EffectLine
 */

/**
 * @constructor
 * @extends {module:zrender/graphic/Group}
 * @alias {module:echarts/chart/helper/Line}
 */
function EffectLine(lineData, idx, seriesScope) {
    Group.call(this);

    this.add(this.createLine(lineData, idx, seriesScope));

    this._updateEffectSymbol(lineData, idx);
}

var effectLineProto = EffectLine.prototype;

effectLineProto.createLine = function (lineData, idx, seriesScope) {
    return new Line$1(lineData, idx, seriesScope);
};

effectLineProto._updateEffectSymbol = function (lineData, idx) {
    var itemModel = lineData.getItemModel(idx);
    var effectModel = itemModel.getModel('effect');
    var size = effectModel.get('symbolSize');
    var symbolType = effectModel.get('symbol');
    if (!isArray(size)) {
        size = [size, size];
    }
    var color = effectModel.get('color') || lineData.getItemVisual(idx, 'color');
    var symbol = this.childAt(1);

    if (this._symbolType !== symbolType) {
        // Remove previous
        this.remove(symbol);

        symbol = createSymbol(
            symbolType, -0.5, -0.5, 1, 1, color
        );
        symbol.z2 = 100;
        symbol.culling = true;

        this.add(symbol);
    }

    // Symbol may be removed if loop is false
    if (!symbol) {
        return;
    }

    // Shadow color is same with color in default
    symbol.setStyle('shadowColor', color);
    symbol.setStyle(effectModel.getItemStyle(['color']));

    symbol.attr('scale', size);

    symbol.setColor(color);
    symbol.attr('scale', size);

    this._symbolType = symbolType;

    this._updateEffectAnimation(lineData, effectModel, idx);
};

effectLineProto._updateEffectAnimation = function (lineData, effectModel, idx) {

    var symbol = this.childAt(1);
    if (!symbol) {
        return;
    }

    var self = this;

    var points = lineData.getItemLayout(idx);

    var period = effectModel.get('period') * 1000;
    var loop = effectModel.get('loop');
    var constantSpeed = effectModel.get('constantSpeed');
    var delayExpr = retrieve(effectModel.get('delay'), function (idx) {
        return idx / lineData.count() * period / 3;
    });
    var isDelayFunc = typeof delayExpr === 'function';

    // Ignore when updating
    symbol.ignore = true;

    this.updateAnimationPoints(symbol, points);

    if (constantSpeed > 0) {
        period = this.getLineLength(symbol) / constantSpeed * 1000;
    }

    if (period !== this._period || loop !== this._loop) {

        symbol.stopAnimation();

        var delay = delayExpr;
        if (isDelayFunc) {
            delay = delayExpr(idx);
        }
        if (symbol.__t > 0) {
            delay = -period * symbol.__t;
        }
        symbol.__t = 0;
        var animator = symbol.animate('', loop)
            .when(period, {
                __t: 1
            })
            .delay(delay)
            .during(function () {
                self.updateSymbolPosition(symbol);
            });
        if (!loop) {
            animator.done(function () {
                self.remove(symbol);
            });
        }
        animator.start();
    }

    this._period = period;
    this._loop = loop;
};

effectLineProto.getLineLength = function (symbol) {
    // Not so accurate
    return (dist(symbol.__p1, symbol.__cp1)
        + dist(symbol.__cp1, symbol.__p2));
};

effectLineProto.updateAnimationPoints = function (symbol, points) {
    symbol.__p1 = points[0];
    symbol.__p2 = points[1];
    symbol.__cp1 = points[2] || [
        (points[0][0] + points[1][0]) / 2,
        (points[0][1] + points[1][1]) / 2
    ];
};

effectLineProto.updateData = function (lineData, idx, seriesScope) {
    this.childAt(0).updateData(lineData, idx, seriesScope);
    this._updateEffectSymbol(lineData, idx);
};

effectLineProto.updateSymbolPosition = function (symbol) {
    var p1 = symbol.__p1;
    var p2 = symbol.__p2;
    var cp1 = symbol.__cp1;
    var t = symbol.__t;
    var pos = symbol.position;
    var quadraticAt$$1 = quadraticAt;
    var quadraticDerivativeAt$$1 = quadraticDerivativeAt;
    pos[0] = quadraticAt$$1(p1[0], cp1[0], p2[0], t);
    pos[1] = quadraticAt$$1(p1[1], cp1[1], p2[1], t);

    // Tangent
    var tx = quadraticDerivativeAt$$1(p1[0], cp1[0], p2[0], t);
    var ty = quadraticDerivativeAt$$1(p1[1], cp1[1], p2[1], t);

    symbol.rotation = -Math.atan2(ty, tx) - Math.PI / 2;

    symbol.ignore = false;
};


effectLineProto.updateLayout = function (lineData, idx) {
    this.childAt(0).updateLayout(lineData, idx);

    var effectModel = lineData.getItemModel(idx).getModel('effect');
    this._updateEffectAnimation(lineData, effectModel, idx);
};

inherits(EffectLine, Group);

/**
 * @module echarts/chart/helper/Line
 */

/**
 * @constructor
 * @extends {module:zrender/graphic/Group}
 * @alias {module:echarts/chart/helper/Polyline}
 */
function Polyline$2(lineData, idx, seriesScope) {
    Group.call(this);

    this._createPolyline(lineData, idx, seriesScope);
}

var polylineProto = Polyline$2.prototype;

polylineProto._createPolyline = function (lineData, idx, seriesScope) {
    // var seriesModel = lineData.hostModel;
    var points = lineData.getItemLayout(idx);

    var line = new Polyline({
        shape: {
            points: points
        }
    });

    this.add(line);

    this._updateCommonStl(lineData, idx, seriesScope);
};

polylineProto.updateData = function (lineData, idx, seriesScope) {
    var seriesModel = lineData.hostModel;

    var line = this.childAt(0);
    var target = {
        shape: {
            points: lineData.getItemLayout(idx)
        }
    };
    updateProps(line, target, seriesModel, idx);

    this._updateCommonStl(lineData, idx, seriesScope);
};

polylineProto._updateCommonStl = function (lineData, idx, seriesScope) {
    var line = this.childAt(0);
    var itemModel = lineData.getItemModel(idx);

    var visualColor = lineData.getItemVisual(idx, 'color');

    var lineStyle = seriesScope && seriesScope.lineStyle;
    var hoverLineStyle = seriesScope && seriesScope.hoverLineStyle;

    if (!seriesScope || lineData.hasItemOption) {
        lineStyle = itemModel.getModel('lineStyle').getLineStyle();
        hoverLineStyle = itemModel.getModel('emphasis.lineStyle').getLineStyle();
    }
    line.useStyle(defaults(
        {
            strokeNoScale: true,
            fill: 'none',
            stroke: visualColor
        },
        lineStyle
    ));
    line.hoverStyle = hoverLineStyle;

    setHoverStyle(this);
};

polylineProto.updateLayout = function (lineData, idx) {
    var polyline = this.childAt(0);
    polyline.setShape('points', lineData.getItemLayout(idx));
};

inherits(Polyline$2, Group);

/**
 * Provide effect for line
 * @module echarts/chart/helper/EffectLine
 */

/**
 * @constructor
 * @extends {module:echarts/chart/helper/EffectLine}
 * @alias {module:echarts/chart/helper/Polyline}
 */
function EffectPolyline(lineData, idx, seriesScope) {
    EffectLine.call(this, lineData, idx, seriesScope);
    this._lastFrame = 0;
    this._lastFramePercent = 0;
}

var effectPolylineProto = EffectPolyline.prototype;

// Overwrite
effectPolylineProto.createLine = function (lineData, idx, seriesScope) {
    return new Polyline$2(lineData, idx, seriesScope);
};

// Overwrite
effectPolylineProto.updateAnimationPoints = function (symbol, points) {
    this._points = points;
    var accLenArr = [0];
    var len$$1 = 0;
    for (var i = 1; i < points.length; i++) {
        var p1 = points[i - 1];
        var p2 = points[i];
        len$$1 += dist(p1, p2);
        accLenArr.push(len$$1);
    }
    if (len$$1 === 0) {
        return;
    }

    for (var i = 0; i < accLenArr.length; i++) {
        accLenArr[i] /= len$$1;
    }
    this._offsets = accLenArr;
    this._length = len$$1;
};

// Overwrite
effectPolylineProto.getLineLength = function (symbol) {
    return this._length;
};

// Overwrite
effectPolylineProto.updateSymbolPosition = function (symbol) {
    var t = symbol.__t;
    var points = this._points;
    var offsets = this._offsets;
    var len$$1 = points.length;

    if (!offsets) {
        // Has length 0
        return;
    }

    var lastFrame = this._lastFrame;
    var frame;

    if (t < this._lastFramePercent) {
        // Start from the next frame
        // PENDING start from lastFrame ?
        var start = Math.min(lastFrame + 1, len$$1 - 1);
        for (frame = start; frame >= 0; frame--) {
            if (offsets[frame] <= t) {
                break;
            }
        }
        // PENDING really need to do this ?
        frame = Math.min(frame, len$$1 - 2);
    }
    else {
        for (var frame = lastFrame; frame < len$$1; frame++) {
            if (offsets[frame] > t) {
                break;
            }
        }
        frame = Math.min(frame - 1, len$$1 - 2);
    }

    lerp(
        symbol.position, points[frame], points[frame + 1],
        (t - offsets[frame]) / (offsets[frame + 1] - offsets[frame])
    );

    var tx = points[frame + 1][0] - points[frame][0];
    var ty = points[frame + 1][1] - points[frame][1];
    symbol.rotation = -Math.atan2(ty, tx) - Math.PI / 2;

    this._lastFrame = frame;
    this._lastFramePercent = t;

    symbol.ignore = false;
};

inherits(EffectPolyline, EffectLine);

// TODO Batch by color

var LargeLineShape = extendShape({

    shape: {
        polyline: false,
        curveness: 0,
        segs: []
    },

    buildPath: function (path, shape) {
        var segs = shape.segs;
        var curveness = shape.curveness;

        if (shape.polyline) {
            for (var i = 0; i < segs.length;) {
                var count = segs[i++];
                if (count > 0) {
                    path.moveTo(segs[i++], segs[i++]);
                    for (var k = 1; k < count; k++) {
                        path.lineTo(segs[i++], segs[i++]);
                    }
                }
            }
        }
        else {
            for (var i = 0; i < segs.length;) {
                var x0 = segs[i++];
                var y0 = segs[i++];
                var x1 = segs[i++];
                var y1 = segs[i++];
                path.moveTo(x0, y0);
                if (curveness > 0) {
                    var x2 = (x0 + x1) / 2 - (y0 - y1) * curveness;
                    var y2 = (y0 + y1) / 2 - (x1 - x0) * curveness;
                    path.quadraticCurveTo(x2, y2, x1, y1);
                }
                else {
                    path.lineTo(x1, y1);
                }
            }
        }
    },

    findDataIndex: function (x, y) {

        var shape = this.shape;
        var segs = shape.segs;
        var curveness = shape.curveness;

        if (shape.polyline) {
            var dataIndex = 0;
            for (var i = 0; i < segs.length;) {
                var count = segs[i++];
                if (count > 0) {
                    var x0 = segs[i++];
                    var y0 = segs[i++];
                    for (var k = 1; k < count; k++) {
                        var x1 = segs[i++];
                        var y1 = segs[i++];
                        if (containStroke$1(x0, y0, x1, y1)) {
                            return dataIndex;
                        }
                    }
                }

                dataIndex++;
            }
        }
        else {
            var dataIndex = 0;
            for (var i = 0; i < segs.length;) {
                var x0 = segs[i++];
                var y0 = segs[i++];
                var x1 = segs[i++];
                var y1 = segs[i++];
                if (curveness > 0) {
                    var x2 = (x0 + x1) / 2 - (y0 - y1) * curveness;
                    var y2 = (y0 + y1) / 2 - (x1 - x0) * curveness;

                    if (containStroke$3(x0, y0, x2, y2, x1, y1)) {
                        return dataIndex;
                    }
                }
                else {
                    if (containStroke$1(x0, y0, x1, y1)) {
                        return dataIndex;
                    }
                }

                dataIndex++;
            }
        }

        return -1;
    }
});

function LargeLineDraw() {
    this.group = new Group();
}

var largeLineProto = LargeLineDraw.prototype;

largeLineProto.isPersistent = function () {
    return !this._incremental;
};

/**
 * Update symbols draw by new data
 * @param {module:echarts/data/List} data
 */
largeLineProto.updateData = function (data) {
    this.group.removeAll();

    var lineEl = new LargeLineShape({
        rectHover: true,
        cursor: 'default'
    });
    lineEl.setShape({
        segs: data.getLayout('linesPoints')
    });

    this._setCommon(lineEl, data);

    // Add back
    this.group.add(lineEl);

    this._incremental = null;
};

/**
 * @override
 */
largeLineProto.incrementalPrepareUpdate = function (data) {
    this.group.removeAll();

    this._clearIncremental();

    if (data.count() > 5e5) {
        if (!this._incremental) {
            this._incremental = new IncrementalDisplayble({
                silent: true
            });
        }
        this.group.add(this._incremental);
    }
    else {
        this._incremental = null;
    }
};

/**
 * @override
 */
largeLineProto.incrementalUpdate = function (taskParams, data) {
    var lineEl = new LargeLineShape();
    lineEl.setShape({
        segs: data.getLayout('linesPoints')
    });
    this._setCommon(lineEl, data, !!this._incremental);

    if (!this._incremental) {
        lineEl.rectHover = true;
        lineEl.cursor = 'default';
        lineEl.__startIndex = taskParams.start;
        this.group.add(lineEl);
    }
    else {
        this._incremental.addDisplayable(lineEl, true);
    }
};

/**
 * @override
 */
largeLineProto.remove = function () {
    this._clearIncremental();
    this._incremental = null;
    this.group.removeAll();
};

largeLineProto._setCommon = function (lineEl, data, isIncremental) {
    var hostModel = data.hostModel;

    lineEl.setShape({
        polyline: hostModel.get('polyline'),
        curveness: hostModel.get('lineStyle.curveness')
    });

    lineEl.useStyle(
        hostModel.getModel('lineStyle').getLineStyle()
    );
    lineEl.style.strokeNoScale = true;

    var visualColor = data.getVisual('color');
    if (visualColor) {
        lineEl.setStyle('stroke', visualColor);
    }
    lineEl.setStyle('fill');

    if (!isIncremental) {
        // Enable tooltip
        // PENDING May have performance issue when path is extremely large
        lineEl.seriesIndex = hostModel.seriesIndex;
        lineEl.on('mousemove', function (e) {
            lineEl.dataIndex = null;
            var dataIndex = lineEl.findDataIndex(e.offsetX, e.offsetY);
            if (dataIndex > 0) {
                // Provide dataIndex for tooltip
                lineEl.dataIndex = dataIndex + lineEl.__startIndex;
            }
        });
    }
};

largeLineProto._clearIncremental = function () {
    var incremental = this._incremental;
    if (incremental) {
        incremental.clearDisplaybles();
    }
};

var linesLayout = {
    seriesType: 'lines',

    plan: createRenderPlanner(),

    reset: function (seriesModel) {
        var coordSys = seriesModel.coordinateSystem;
        var isPolyline = seriesModel.get('polyline');
        var isLarge = seriesModel.pipelineContext.large;

        function progress(params, lineData) {
            var lineCoords = [];
            if (isLarge) {
                var points;
                var segCount = params.end - params.start;
                if (isPolyline) {
                    var totalCoordsCount = 0;
                    for (var i = params.start; i < params.end; i++) {
                        totalCoordsCount += seriesModel.getLineCoordsCount(i);
                    }
                    points = new Float32Array(segCount + totalCoordsCount * 2);
                }
                else {
                    points = new Float32Array(segCount * 2);
                }

                var offset = 0;
                var pt = [];
                for (var i = params.start; i < params.end; i++) {
                    var len = seriesModel.getLineCoords(i, lineCoords);
                    if (isPolyline) {
                        points[offset++] = len;
                    }
                    for (var k = 0; k < len; k++) {
                        pt = coordSys.dataToPoint(lineCoords[k], false, pt);
                        points[offset++] = pt[0];
                        points[offset++] = pt[1];
                    }
                }

                lineData.setLayout('linesPoints', points);
            }
            else {
                for (var i = params.start; i < params.end; i++) {
                    var itemModel = lineData.getItemModel(i);
                    var len = seriesModel.getLineCoords(i, lineCoords);

                    var pts = [];
                    if (isPolyline) {
                        for (var j = 0; j < len; j++) {
                            pts.push(coordSys.dataToPoint(lineCoords[j]));
                        }
                    }
                    else {
                        pts[0] = coordSys.dataToPoint(lineCoords[0]);
                        pts[1] = coordSys.dataToPoint(lineCoords[1]);

                        var curveness = itemModel.get('lineStyle.curveness');
                        if (+curveness) {
                            pts[2] = [
                                (pts[0][0] + pts[1][0]) / 2 - (pts[0][1] - pts[1][1]) * curveness,
                                (pts[0][1] + pts[1][1]) / 2 - (pts[1][0] - pts[0][0]) * curveness
                            ];
                        }
                    }
                    lineData.setItemLayout(i, pts);
                }
            }
        }

        return { progress: progress };
    }
};

extendChartView({

    type: 'lines',

    init: function () {},

    render: function (seriesModel, ecModel, api) {
        var data = seriesModel.getData();

        var lineDraw = this._updateLineDraw(data, seriesModel);

        var zlevel = seriesModel.get('zlevel');
        var trailLength = seriesModel.get('effect.trailLength');

        var zr = api.getZr();
        // Avoid the drag cause ghost shadow
        // FIXME Better way ?
        // SVG doesn't support
        var isSvg = zr.painter.getType() === 'svg';
        if (!isSvg) {
            zr.painter.getLayer(zlevel).clear(true);
        }
        // Config layer with motion blur
        if (this._lastZlevel != null && !isSvg) {
            zr.configLayer(this._lastZlevel, {
                motionBlur: false
            });
        }
        if (this._showEffect(seriesModel) && trailLength) {
            if (__DEV__) {
                var notInIndividual = false;
                ecModel.eachSeries(function (otherSeriesModel) {
                    if (otherSeriesModel !== seriesModel && otherSeriesModel.get('zlevel') === zlevel) {
                        notInIndividual = true;
                    }
                });
                notInIndividual && console.warn('Lines with trail effect should have an individual zlevel');
            }

            if (!isSvg) {
                zr.configLayer(zlevel, {
                    motionBlur: true,
                    lastFrameAlpha: Math.max(Math.min(trailLength / 10 + 0.9, 1), 0)
                });
            }
        }

        lineDraw.updateData(data);

        this._lastZlevel = zlevel;

        this._finished = true;
    },

    incrementalPrepareRender: function (seriesModel, ecModel, api) {
        var data = seriesModel.getData();

        var lineDraw = this._updateLineDraw(data, seriesModel);

        lineDraw.incrementalPrepareUpdate(data);

        this._clearLayer(api);

        this._finished = false;
    },

    incrementalRender: function (taskParams, seriesModel, ecModel) {
        this._lineDraw.incrementalUpdate(taskParams, seriesModel.getData());

        this._finished = taskParams.end === seriesModel.getData().count();
    },

    updateTransform: function (seriesModel, ecModel, api) {
        var data = seriesModel.getData();

        if (!this._finished || seriesModel.pipelineContext.large) {
            // TODO Don't have to do update in large mode. Only do it when there are millions of data.
            return {
                update: true
            };
        }
        else {
            // TODO Use same logic with ScatterView.
            // Manually update layout
            var res = linesLayout.reset(seriesModel);
            if (res.progress) {
                res.progress({ start: 0, end: data.count() }, data);
            }
            this._lineDraw.updateLayout();
            this._clearLayer(api);
        }
    },

    _updateLineDraw: function (data, seriesModel) {
        var lineDraw = this._lineDraw;
        var hasEffect = this._showEffect(seriesModel);
        var isPolyline = !!seriesModel.get('polyline');
        var pipelineContext = seriesModel.pipelineContext;
        var isLargeDraw = pipelineContext.large;

        if (__DEV__) {
            if (hasEffect && isLargeDraw) {
                console.warn('Large lines not support effect');
            }
        }
        if (!lineDraw
            || hasEffect !== this._hasEffet
            || isPolyline !== this._isPolyline
            || isLargeDraw !== this._isLargeDraw
        ) {
            if (lineDraw) {
                lineDraw.remove();
            }
            lineDraw = this._lineDraw = isLargeDraw
                ? new LargeLineDraw()
                : new LineDraw(
                    isPolyline
                        ? (hasEffect ? EffectPolyline : Polyline$2)
                        : (hasEffect ? EffectLine : Line$1)
                );
            this._hasEffet = hasEffect;
            this._isPolyline = isPolyline;
            this._isLargeDraw = isLargeDraw;
            this.group.removeAll();
        }

        this.group.add(lineDraw.group);

        return lineDraw;
    },

    _showEffect: function (seriesModel) {
        return !!seriesModel.get('effect.show');
    },

    _clearLayer: function (api) {
        // Not use motion when dragging or zooming
        var zr = api.getZr();
        var isSvg = zr.painter.getType() === 'svg';
        if (!isSvg && this._lastZlevel != null) {
            zr.painter.getLayer(this._lastZlevel).clear(true);
        }
    },

    remove: function (ecModel, api) {
        this._lineDraw && this._lineDraw.remove();
        this._lineDraw = null;
        // Clear motion when lineDraw is removed
        this._clearLayer(api);
    },

    dispose: function () {}
});

function normalize$2(a) {
    if (!(a instanceof Array)) {
        a = [a, a];
    }
    return a;
}

var opacityQuery = 'lineStyle.opacity'.split('.');

var linesVisual = {
    seriesType: 'lines',
    reset: function (seriesModel, ecModel, api) {
        var symbolType = normalize$2(seriesModel.get('symbol'));
        var symbolSize = normalize$2(seriesModel.get('symbolSize'));
        var data = seriesModel.getData();

        data.setVisual('fromSymbol', symbolType && symbolType[0]);
        data.setVisual('toSymbol', symbolType && symbolType[1]);
        data.setVisual('fromSymbolSize', symbolSize && symbolSize[0]);
        data.setVisual('toSymbolSize', symbolSize && symbolSize[1]);
        data.setVisual('opacity', seriesModel.get(opacityQuery));

        function dataEach(data, idx) {
            var itemModel = data.getItemModel(idx);
            var symbolType = normalize$2(itemModel.getShallow('symbol', true));
            var symbolSize = normalize$2(itemModel.getShallow('symbolSize', true));
            var opacity = itemModel.get(opacityQuery);

            symbolType[0] && data.setItemVisual(idx, 'fromSymbol', symbolType[0]);
            symbolType[1] && data.setItemVisual(idx, 'toSymbol', symbolType[1]);
            symbolSize[0] && data.setItemVisual(idx, 'fromSymbolSize', symbolSize[0]);
            symbolSize[1] && data.setItemVisual(idx, 'toSymbolSize', symbolSize[1]);

            data.setItemVisual(idx, 'opacity', opacity);
        }

        return {dataEach: data.hasItemOption ? dataEach : null};
    }
};

registerLayout(linesLayout);
registerVisual(linesVisual);

SeriesModel.extend({
    type: 'series.heatmap',

    getInitialData: function (option, ecModel) {
        return createListFromArray(this.getSource(), this, {
            generateCoord: 'value'
        });
    },

    preventIncremental: function () {
        var coordSysCreator = CoordinateSystemManager.get(this.get('coordinateSystem'));
        if (coordSysCreator && coordSysCreator.dimensions) {
            return coordSysCreator.dimensions[0] === 'lng' && coordSysCreator.dimensions[1] === 'lat';
        }
    },

    defaultOption: {

        // Cartesian2D or geo
        coordinateSystem: 'cartesian2d',

        zlevel: 0,

        z: 2,

        // Cartesian coordinate system
        // xAxisIndex: 0,
        // yAxisIndex: 0,

        // Geo coordinate system
        geoIndex: 0,

        blurSize: 30,

        pointSize: 20,

        maxOpacity: 1,

        minOpacity: 0
    }
});

/**
 * @file defines echarts Heatmap Chart
 * @author Ovilia (me@zhangwenli.com)
 * Inspired by https://github.com/mourner/simpleheat
 *
 * @module
 */

var GRADIENT_LEVELS = 256;

/**
 * Heatmap Chart
 *
 * @class
 */
function Heatmap() {
    var canvas = createCanvas();
    this.canvas = canvas;

    this.blurSize = 30;
    this.pointSize = 20;

    this.maxOpacity = 1;
    this.minOpacity = 0;

    this._gradientPixels = {};
}

Heatmap.prototype = {
    /**
     * Renders Heatmap and returns the rendered canvas
     * @param {Array} data array of data, each has x, y, value
     * @param {number} width canvas width
     * @param {number} height canvas height
     */
    update: function(data, width, height, normalize, colorFunc, isInRange) {
        var brush = this._getBrush();
        var gradientInRange = this._getGradient(data, colorFunc, 'inRange');
        var gradientOutOfRange = this._getGradient(data, colorFunc, 'outOfRange');
        var r = this.pointSize + this.blurSize;

        var canvas = this.canvas;
        var ctx = canvas.getContext('2d');
        var len = data.length;
        canvas.width = width;
        canvas.height = height;
        for (var i = 0; i < len; ++i) {
            var p = data[i];
            var x = p[0];
            var y = p[1];
            var value = p[2];

            // calculate alpha using value
            var alpha = normalize(value);

            // draw with the circle brush with alpha
            ctx.globalAlpha = alpha;
            ctx.drawImage(brush, x - r, y - r);
        }

        if (!canvas.width || !canvas.height) {
            // Avoid "Uncaught DOMException: Failed to execute 'getImageData' on
            // 'CanvasRenderingContext2D': The source height is 0."
            return canvas;
        }

        // colorize the canvas using alpha value and set with gradient
        var imageData = ctx.getImageData(0, 0, canvas.width, canvas.height);

        var pixels = imageData.data;
        var offset = 0;
        var pixelLen = pixels.length;
        var minOpacity = this.minOpacity;
        var maxOpacity = this.maxOpacity;
        var diffOpacity = maxOpacity - minOpacity;

        while(offset < pixelLen) {
            var alpha = pixels[offset + 3] / 256;
            var gradientOffset = Math.floor(alpha * (GRADIENT_LEVELS - 1)) * 4;
            // Simple optimize to ignore the empty data
            if (alpha > 0) {
                var gradient = isInRange(alpha) ? gradientInRange : gradientOutOfRange;
                // Any alpha > 0 will be mapped to [minOpacity, maxOpacity]
                alpha > 0 && (alpha = alpha * diffOpacity + minOpacity);
                pixels[offset++] = gradient[gradientOffset];
                pixels[offset++] = gradient[gradientOffset + 1];
                pixels[offset++] = gradient[gradientOffset + 2];
                pixels[offset++] = gradient[gradientOffset + 3] * alpha * 256;
            }
            else {
                offset += 4;
            }
        }
        ctx.putImageData(imageData, 0, 0);

        return canvas;
    },

    /**
     * get canvas of a black circle brush used for canvas to draw later
     * @private
     * @returns {Object} circle brush canvas
     */
    _getBrush: function() {
        var brushCanvas = this._brushCanvas || (this._brushCanvas = createCanvas());
        // set brush size
        var r = this.pointSize + this.blurSize;
        var d = r * 2;
        brushCanvas.width = d;
        brushCanvas.height = d;

        var ctx = brushCanvas.getContext('2d');
        ctx.clearRect(0, 0, d, d);

        // in order to render shadow without the distinct circle,
        // draw the distinct circle in an invisible place,
        // and use shadowOffset to draw shadow in the center of the canvas
        ctx.shadowOffsetX = d;
        ctx.shadowBlur = this.blurSize;
        // draw the shadow in black, and use alpha and shadow blur to generate
        // color in color map
        ctx.shadowColor = '#000';

        // draw circle in the left to the canvas
        ctx.beginPath();
        ctx.arc(-r, r, this.pointSize, 0, Math.PI * 2, true);
        ctx.closePath();
        ctx.fill();
        return brushCanvas;
    },

    /**
     * get gradient color map
     * @private
     */
    _getGradient: function (data, colorFunc, state) {
        var gradientPixels = this._gradientPixels;
        var pixelsSingleState = gradientPixels[state] || (gradientPixels[state] = new Uint8ClampedArray(256 * 4));
        var color = [0, 0, 0, 0];
        var off = 0;
        for (var i = 0; i < 256; i++) {
            colorFunc[state](i / 255, true, color);
            pixelsSingleState[off++] = color[0];
            pixelsSingleState[off++] = color[1];
            pixelsSingleState[off++] = color[2];
            pixelsSingleState[off++] = color[3];
        }
        return pixelsSingleState;
    }
};

function getIsInPiecewiseRange(dataExtent, pieceList, selected) {
    var dataSpan = dataExtent[1] - dataExtent[0];
    pieceList = map(pieceList, function (piece) {
        return {
            interval: [
                (piece.interval[0] - dataExtent[0]) / dataSpan,
                (piece.interval[1] - dataExtent[0]) / dataSpan
            ]
        };
    });
    var len = pieceList.length;
    var lastIndex = 0;

    return function (val) {
        // Try to find in the location of the last found
        for (var i = lastIndex; i < len; i++) {
            var interval = pieceList[i].interval;
            if (interval[0] <= val && val <= interval[1]) {
                lastIndex = i;
                break;
            }
        }
        if (i === len) { // Not found, back interation
            for (var i = lastIndex - 1; i >= 0; i--) {
                var interval = pieceList[i].interval;
                if (interval[0] <= val && val <= interval[1]) {
                    lastIndex = i;
                    break;
                }
            }
        }
        return i >= 0 && i < len && selected[i];
    };
}

function getIsInContinuousRange(dataExtent, range) {
    var dataSpan = dataExtent[1] - dataExtent[0];
    range = [
        (range[0] - dataExtent[0]) / dataSpan,
        (range[1] - dataExtent[0]) / dataSpan
    ];
    return function (val) {
        return val >= range[0] && val <= range[1];
    };
}

function isGeoCoordSys(coordSys) {
    var dimensions = coordSys.dimensions;
    // Not use coorSys.type === 'geo' because coordSys maybe extended
    return dimensions[0] === 'lng' && dimensions[1] === 'lat';
}

extendChartView({

    type: 'heatmap',

    render: function (seriesModel, ecModel, api) {
        var visualMapOfThisSeries;
        ecModel.eachComponent('visualMap', function (visualMap) {
            visualMap.eachTargetSeries(function (targetSeries) {
                if (targetSeries === seriesModel) {
                    visualMapOfThisSeries = visualMap;
                }
            });
        });

        if (__DEV__) {
            if (!visualMapOfThisSeries) {
                throw new Error('Heatmap must use with visualMap');
            }
        }

        this.group.removeAll();

        this._incrementalDisplayable = null;

        var coordSys = seriesModel.coordinateSystem;
        if (coordSys.type === 'cartesian2d' || coordSys.type === 'calendar') {
            this._renderOnCartesianAndCalendar(seriesModel, api, 0, seriesModel.getData().count());
        }
        else if (isGeoCoordSys(coordSys)) {
            this._renderOnGeo(
                coordSys, seriesModel, visualMapOfThisSeries, api
            );
        }
    },

    incrementalPrepareRender: function (seriesModel, ecModel, api) {
        this.group.removeAll();
    },

    incrementalRender: function (params, seriesModel, ecModel, api) {
        var coordSys = seriesModel.coordinateSystem;
        if (coordSys) {
            this._renderOnCartesianAndCalendar(seriesModel, api, params.start, params.end, true);
        }
    },

    _renderOnCartesianAndCalendar: function (seriesModel, api, start, end, incremental) {

        var coordSys = seriesModel.coordinateSystem;
        var width;
        var height;

        if (coordSys.type === 'cartesian2d') {
            var xAxis = coordSys.getAxis('x');
            var yAxis = coordSys.getAxis('y');

            if (__DEV__) {
                if (!(xAxis.type === 'category' && yAxis.type === 'category')) {
                    throw new Error('Heatmap on cartesian must have two category axes');
                }
                if (!(xAxis.onBand && yAxis.onBand)) {
                    throw new Error('Heatmap on cartesian must have two axes with boundaryGap true');
                }
            }

            width = xAxis.getBandWidth();
            height = yAxis.getBandWidth();
        }

        var group = this.group;
        var data = seriesModel.getData();

        var itemStyleQuery = 'itemStyle';
        var hoverItemStyleQuery = 'emphasis.itemStyle';
        var labelQuery = 'label';
        var hoverLabelQuery = 'emphasis.label';
        var style = seriesModel.getModel(itemStyleQuery).getItemStyle(['color']);
        var hoverStl = seriesModel.getModel(hoverItemStyleQuery).getItemStyle();
        var labelModel = seriesModel.getModel(labelQuery);
        var hoverLabelModel = seriesModel.getModel(hoverLabelQuery);
        var coordSysType = coordSys.type;


        var dataDims = coordSysType === 'cartesian2d'
            ? [
                data.mapDimension('x'),
                data.mapDimension('y'),
                data.mapDimension('value')
            ]
            : [
                data.mapDimension('time'),
                data.mapDimension('value')
            ];

        for (var idx = start; idx < end; idx++) {
            var rect;

            if (coordSysType === 'cartesian2d') {
                // Ignore empty data
                if (isNaN(data.get(dataDims[2], idx))) {
                    continue;
                }

                var point = coordSys.dataToPoint([
                    data.get(dataDims[0], idx),
                    data.get(dataDims[1], idx)
                ]);

                rect = new Rect({
                    shape: {
                        x: point[0] - width / 2,
                        y: point[1] - height / 2,
                        width: width,
                        height: height
                    },
                    style: {
                        fill: data.getItemVisual(idx, 'color'),
                        opacity: data.getItemVisual(idx, 'opacity')
                    }
                });
            }
            else {
                // Ignore empty data
                if (isNaN(data.get(dataDims[1], idx))) {
                    continue;
                }

                rect = new Rect({
                    z2: 1,
                    shape: coordSys.dataToRect([data.get(dataDims[0], idx)]).contentShape,
                    style: {
                        fill: data.getItemVisual(idx, 'color'),
                        opacity: data.getItemVisual(idx, 'opacity')
                    }
                });
            }

            var itemModel = data.getItemModel(idx);

            // Optimization for large datset
            if (data.hasItemOption) {
                style = itemModel.getModel(itemStyleQuery).getItemStyle(['color']);
                hoverStl = itemModel.getModel(hoverItemStyleQuery).getItemStyle();
                labelModel = itemModel.getModel(labelQuery);
                hoverLabelModel = itemModel.getModel(hoverLabelQuery);
            }

            var rawValue = seriesModel.getRawValue(idx);
            var defaultText = '-';
            if (rawValue && rawValue[2] != null) {
                defaultText = rawValue[2];
            }

            setLabelStyle(
                style, hoverStl, labelModel, hoverLabelModel,
                {
                    labelFetcher: seriesModel,
                    labelDataIndex: idx,
                    defaultText: defaultText,
                    isRectText: true
                }
            );

            rect.setStyle(style);
            setHoverStyle(rect, data.hasItemOption ? hoverStl : extend({}, hoverStl));

            rect.incremental = incremental;
            // PENDING
            if (incremental) {
                // Rect must use hover layer if it's incremental.
                rect.useHoverLayer = true;
            }

            group.add(rect);
            data.setItemGraphicEl(idx, rect);
        }
    },

    _renderOnGeo: function (geo, seriesModel, visualMapModel, api) {
        var inRangeVisuals = visualMapModel.targetVisuals.inRange;
        var outOfRangeVisuals = visualMapModel.targetVisuals.outOfRange;
        // if (!visualMapping) {
        //     throw new Error('Data range must have color visuals');
        // }

        var data = seriesModel.getData();
        var hmLayer = this._hmLayer || (this._hmLayer || new Heatmap());
        hmLayer.blurSize = seriesModel.get('blurSize');
        hmLayer.pointSize = seriesModel.get('pointSize');
        hmLayer.minOpacity = seriesModel.get('minOpacity');
        hmLayer.maxOpacity = seriesModel.get('maxOpacity');

        var rect = geo.getViewRect().clone();
        var roamTransform = geo.getRoamTransform();
        rect.applyTransform(roamTransform);

        // Clamp on viewport
        var x = Math.max(rect.x, 0);
        var y = Math.max(rect.y, 0);
        var x2 = Math.min(rect.width + rect.x, api.getWidth());
        var y2 = Math.min(rect.height + rect.y, api.getHeight());
        var width = x2 - x;
        var height = y2 - y;

        var dims = [
            data.mapDimension('lng'),
            data.mapDimension('lat'),
            data.mapDimension('value')
        ];

        var points = data.mapArray(dims, function (lng, lat, value) {
            var pt = geo.dataToPoint([lng, lat]);
            pt[0] -= x;
            pt[1] -= y;
            pt.push(value);
            return pt;
        });

        var dataExtent = visualMapModel.getExtent();
        var isInRange = visualMapModel.type === 'visualMap.continuous'
            ? getIsInContinuousRange(dataExtent, visualMapModel.option.range)
            : getIsInPiecewiseRange(
                dataExtent, visualMapModel.getPieceList(), visualMapModel.option.selected
            );

        hmLayer.update(
            points, width, height,
            inRangeVisuals.color.getNormalizer(),
            {
                inRange: inRangeVisuals.color.getColorMapper(),
                outOfRange: outOfRangeVisuals.color.getColorMapper()
            },
            isInRange
        );
        var img = new ZImage({
            style: {
                width: width,
                height: height,
                x: x,
                y: y,
                image: hmLayer.canvas
            },
            silent: true
        });
        this.group.add(img);
    },

    dispose: function () {}
});

var PictorialBarSeries = BaseBarSeries.extend({

    type: 'series.pictorialBar',

    dependencies: ['grid'],

    defaultOption: {
        symbol: 'circle',     // Customized bar shape
        symbolSize: null,     // Can be ['100%', '100%'], null means auto.
        symbolRotate: null,

        symbolPosition: null, // 'start' or 'end' or 'center', null means auto.
        symbolOffset: null,
        symbolMargin: null,   // start margin and end margin. Can be a number or a percent string.
                                // Auto margin by defualt.
        symbolRepeat: false,  // false/null/undefined, means no repeat.
                                // Can be true, means auto calculate repeat times and cut by data.
                                // Can be a number, specifies repeat times, and do not cut by data.
                                // Can be 'fixed', means auto calculate repeat times but do not cut by data.
        symbolRepeatDirection: 'end', // 'end' means from 'start' to 'end'.

        symbolClip: false,
        symbolBoundingData: null, // Can be 60 or -40 or [-40, 60]
        symbolPatternSize: 400, // 400 * 400 px

        barGap: '-100%',      // In most case, overlap is needed.

        // z can be set in data item, which is z2 actually.

        // Disable progressive
        progressive: 0,
        hoverAnimation: false // Open only when needed.
    },

    getInitialData: function (option) {
        // Disable stack.
        option.stack = null;
        return PictorialBarSeries.superApply(this, 'getInitialData', arguments);
    }
});

var BAR_BORDER_WIDTH_QUERY$1 = ['itemStyle', 'borderWidth'];

// index: +isHorizontal
var LAYOUT_ATTRS = [
    {xy: 'x', wh: 'width', index: 0, posDesc: ['left', 'right']},
    {xy: 'y', wh: 'height', index: 1, posDesc: ['top', 'bottom']}
];

var pathForLineWidth = new Circle();

var BarView$1 = extendChartView({

    type: 'pictorialBar',

    render: function (seriesModel, ecModel, api) {
        var group = this.group;
        var data = seriesModel.getData();
        var oldData = this._data;

        var cartesian = seriesModel.coordinateSystem;
        var baseAxis = cartesian.getBaseAxis();
        var isHorizontal = !!baseAxis.isHorizontal();
        var coordSysRect = cartesian.grid.getRect();

        var opt = {
            ecSize: {width: api.getWidth(), height: api.getHeight()},
            seriesModel: seriesModel,
            coordSys: cartesian,
            coordSysExtent: [
                [coordSysRect.x, coordSysRect.x + coordSysRect.width],
                [coordSysRect.y, coordSysRect.y + coordSysRect.height]
            ],
            isHorizontal: isHorizontal,
            valueDim: LAYOUT_ATTRS[+isHorizontal],
            categoryDim: LAYOUT_ATTRS[1 - isHorizontal]
        };

        data.diff(oldData)
            .add(function (dataIndex) {
                if (!data.hasValue(dataIndex)) {
                    return;
                }

                var itemModel = getItemModel(data, dataIndex);
                var symbolMeta = getSymbolMeta(data, dataIndex, itemModel, opt);

                var bar = createBar(data, opt, symbolMeta);

                data.setItemGraphicEl(dataIndex, bar);
                group.add(bar);

                updateCommon$1(bar, opt, symbolMeta);
            })
            .update(function (newIndex, oldIndex) {
                var bar = oldData.getItemGraphicEl(oldIndex);

                if (!data.hasValue(newIndex)) {
                    group.remove(bar);
                    return;
                }

                var itemModel = getItemModel(data, newIndex);
                var symbolMeta = getSymbolMeta(data, newIndex, itemModel, opt);

                var pictorialShapeStr = getShapeStr(data, symbolMeta);
                if (bar && pictorialShapeStr !== bar.__pictorialShapeStr) {
                    group.remove(bar);
                    data.setItemGraphicEl(newIndex, null);
                    bar = null;
                }

                if (bar) {
                    updateBar(bar, opt, symbolMeta);
                }
                else {
                    bar = createBar(data, opt, symbolMeta, true);
                }

                data.setItemGraphicEl(newIndex, bar);
                bar.__pictorialSymbolMeta = symbolMeta;
                // Add back
                group.add(bar);

                updateCommon$1(bar, opt, symbolMeta);
            })
            .remove(function (dataIndex) {
                var bar = oldData.getItemGraphicEl(dataIndex);
                bar && removeBar(oldData, dataIndex, bar.__pictorialSymbolMeta.animationModel, bar);
            })
            .execute();

        this._data = data;

        return this.group;
    },

    dispose: noop,

    remove: function (ecModel, api) {
        var group = this.group;
        var data = this._data;
        if (ecModel.get('animation')) {
            if (data) {
                data.eachItemGraphicEl(function (bar) {
                    removeBar(data, bar.dataIndex, ecModel, bar);
                });
            }
        }
        else {
            group.removeAll();
        }
    }
});


// Set or calculate default value about symbol, and calculate layout info.
function getSymbolMeta(data, dataIndex, itemModel, opt) {
    var layout = data.getItemLayout(dataIndex);
    var symbolRepeat = itemModel.get('symbolRepeat');
    var symbolClip = itemModel.get('symbolClip');
    var symbolPosition = itemModel.get('symbolPosition') || 'start';
    var symbolRotate = itemModel.get('symbolRotate');
    var rotation = (symbolRotate || 0) * Math.PI / 180 || 0;
    var symbolPatternSize = itemModel.get('symbolPatternSize') || 2;
    var isAnimationEnabled = itemModel.isAnimationEnabled();

    var symbolMeta = {
        dataIndex: dataIndex,
        layout: layout,
        itemModel: itemModel,
        symbolType: data.getItemVisual(dataIndex, 'symbol') || 'circle',
        color: data.getItemVisual(dataIndex, 'color'),
        symbolClip: symbolClip,
        symbolRepeat: symbolRepeat,
        symbolRepeatDirection: itemModel.get('symbolRepeatDirection'),
        symbolPatternSize: symbolPatternSize,
        rotation: rotation,
        animationModel: isAnimationEnabled ? itemModel : null,
        hoverAnimation: isAnimationEnabled && itemModel.get('hoverAnimation'),
        z2: itemModel.getShallow('z', true) || 0
    };

    prepareBarLength(itemModel, symbolRepeat, layout, opt, symbolMeta);

    prepareSymbolSize(
        data, dataIndex, layout, symbolRepeat, symbolClip, symbolMeta.boundingLength,
        symbolMeta.pxSign, symbolPatternSize, opt, symbolMeta
    );

    prepareLineWidth(itemModel, symbolMeta.symbolScale, rotation, opt, symbolMeta);

    var symbolSize = symbolMeta.symbolSize;
    var symbolOffset = itemModel.get('symbolOffset');
    if (isArray(symbolOffset)) {
        symbolOffset = [
            parsePercent$1(symbolOffset[0], symbolSize[0]),
            parsePercent$1(symbolOffset[1], symbolSize[1])
        ];
    }

    prepareLayoutInfo(
        itemModel, symbolSize, layout, symbolRepeat, symbolClip, symbolOffset,
        symbolPosition, symbolMeta.valueLineWidth, symbolMeta.boundingLength, symbolMeta.repeatCutLength,
        opt, symbolMeta
    );

    return symbolMeta;
}

// bar length can be negative.
function prepareBarLength(itemModel, symbolRepeat, layout, opt, output) {
    var valueDim = opt.valueDim;
    var symbolBoundingData = itemModel.get('symbolBoundingData');
    var valueAxis = opt.coordSys.getOtherAxis(opt.coordSys.getBaseAxis());
    var zeroPx = valueAxis.toGlobalCoord(valueAxis.dataToCoord(0));
    var pxSignIdx = 1 - +(layout[valueDim.wh] <= 0);
    var boundingLength;

    if (isArray(symbolBoundingData)) {
        var symbolBoundingExtent = [
            convertToCoordOnAxis(valueAxis, symbolBoundingData[0]) - zeroPx,
            convertToCoordOnAxis(valueAxis, symbolBoundingData[1]) - zeroPx
        ];
        symbolBoundingExtent[1] < symbolBoundingExtent[0] && (symbolBoundingExtent.reverse());
        boundingLength = symbolBoundingExtent[pxSignIdx];
    }
    else if (symbolBoundingData != null) {
        boundingLength = convertToCoordOnAxis(valueAxis, symbolBoundingData) - zeroPx;
    }
    else if (symbolRepeat) {
        boundingLength = opt.coordSysExtent[valueDim.index][pxSignIdx] - zeroPx;
    }
    else {
        boundingLength = layout[valueDim.wh];
    }

    output.boundingLength = boundingLength;

    if (symbolRepeat) {
        output.repeatCutLength = layout[valueDim.wh];
    }

    output.pxSign = boundingLength > 0 ? 1 : boundingLength < 0 ? -1 : 0;
}

function convertToCoordOnAxis(axis, value) {
    return axis.toGlobalCoord(axis.dataToCoord(axis.scale.parse(value)));
}

// Support ['100%', '100%']
function prepareSymbolSize(
    data, dataIndex, layout, symbolRepeat, symbolClip, boundingLength,
    pxSign, symbolPatternSize, opt, output
) {
    var valueDim = opt.valueDim;
    var categoryDim = opt.categoryDim;
    var categorySize = Math.abs(layout[categoryDim.wh]);

    var symbolSize = data.getItemVisual(dataIndex, 'symbolSize');
    if (isArray(symbolSize)) {
        symbolSize = symbolSize.slice();
    }
    else {
        if (symbolSize == null) {
            symbolSize = '100%';
        }
        symbolSize = [symbolSize, symbolSize];
    }

    // Note: percentage symbolSize (like '100%') do not consider lineWidth, because it is
    // to complicated to calculate real percent value if considering scaled lineWidth.
    // So the actual size will bigger than layout size if lineWidth is bigger than zero,
    // which can be tolerated in pictorial chart.

    symbolSize[categoryDim.index] = parsePercent$1(
        symbolSize[categoryDim.index],
        categorySize
    );
    symbolSize[valueDim.index] = parsePercent$1(
        symbolSize[valueDim.index],
        symbolRepeat ? categorySize : Math.abs(boundingLength)
    );

    output.symbolSize = symbolSize;

    // If x or y is less than zero, show reversed shape.
    var symbolScale = output.symbolScale = [
        symbolSize[0] / symbolPatternSize,
        symbolSize[1] / symbolPatternSize
    ];
    // Follow convention, 'right' and 'top' is the normal scale.
    symbolScale[valueDim.index] *= (opt.isHorizontal ? -1 : 1) * pxSign;
}

function prepareLineWidth(itemModel, symbolScale, rotation, opt, output) {
    // In symbols are drawn with scale, so do not need to care about the case that width
    // or height are too small. But symbol use strokeNoScale, where acture lineWidth should
    // be calculated.
    var valueLineWidth = itemModel.get(BAR_BORDER_WIDTH_QUERY$1) || 0;

    if (valueLineWidth) {
        pathForLineWidth.attr({
            scale: symbolScale.slice(),
            rotation: rotation
        });
        pathForLineWidth.updateTransform();
        valueLineWidth /= pathForLineWidth.getLineScale();
        valueLineWidth *= symbolScale[opt.valueDim.index];
    }

    output.valueLineWidth = valueLineWidth;
}

function prepareLayoutInfo(
    itemModel, symbolSize, layout, symbolRepeat, symbolClip, symbolOffset,
    symbolPosition, valueLineWidth, boundingLength, repeatCutLength, opt, output
) {
    var categoryDim = opt.categoryDim;
    var valueDim = opt.valueDim;
    var pxSign = output.pxSign;

    var unitLength = Math.max(symbolSize[valueDim.index] + valueLineWidth, 0);
    var pathLen = unitLength;

    // Note: rotation will not effect the layout of symbols, because user may
    // want symbols to rotate on its center, which should not be translated
    // when rotating.

    if (symbolRepeat) {
        var absBoundingLength = Math.abs(boundingLength);

        var symbolMargin = retrieve(itemModel.get('symbolMargin'), '15%') + '';
        var hasEndGap = false;
        if (symbolMargin.lastIndexOf('!') === symbolMargin.length - 1) {
            hasEndGap = true;
            symbolMargin = symbolMargin.slice(0, symbolMargin.length - 1);
        }
        symbolMargin = parsePercent$1(symbolMargin, symbolSize[valueDim.index]);

        var uLenWithMargin = Math.max(unitLength + symbolMargin * 2, 0);

        // When symbol margin is less than 0, margin at both ends will be subtracted
        // to ensure that all of the symbols will not be overflow the given area.
        var endFix = hasEndGap ? 0 : symbolMargin * 2;

        // Both final repeatTimes and final symbolMargin area calculated based on
        // boundingLength.
        var repeatSpecified = isNumeric(symbolRepeat);
        var repeatTimes = repeatSpecified
            ? symbolRepeat
            : toIntTimes((absBoundingLength + endFix) / uLenWithMargin);

        // Adjust calculate margin, to ensure each symbol is displayed
        // entirely in the given layout area.
        var mDiff = absBoundingLength - repeatTimes * unitLength;
        symbolMargin = mDiff / 2 / (hasEndGap ? repeatTimes : repeatTimes - 1);
        uLenWithMargin = unitLength + symbolMargin * 2;
        endFix = hasEndGap ? 0 : symbolMargin * 2;

        // Update repeatTimes when not all symbol will be shown.
        if (!repeatSpecified && symbolRepeat !== 'fixed') {
            repeatTimes = repeatCutLength
                ? toIntTimes((Math.abs(repeatCutLength) + endFix) / uLenWithMargin)
                : 0;
        }

        pathLen = repeatTimes * uLenWithMargin - endFix;
        output.repeatTimes = repeatTimes;
        output.symbolMargin = symbolMargin;
    }

    var sizeFix = pxSign * (pathLen / 2);
    var pathPosition = output.pathPosition = [];
    pathPosition[categoryDim.index] = layout[categoryDim.wh] / 2;
    pathPosition[valueDim.index] = symbolPosition === 'start'
        ? sizeFix
        : symbolPosition === 'end'
        ? boundingLength - sizeFix
        : boundingLength / 2; // 'center'
    if (symbolOffset) {
        pathPosition[0] += symbolOffset[0];
        pathPosition[1] += symbolOffset[1];
    }

    var bundlePosition = output.bundlePosition = [];
    bundlePosition[categoryDim.index] = layout[categoryDim.xy];
    bundlePosition[valueDim.index] = layout[valueDim.xy];

    var barRectShape = output.barRectShape = extend({}, layout);
    barRectShape[valueDim.wh] = pxSign * Math.max(
        Math.abs(layout[valueDim.wh]), Math.abs(pathPosition[valueDim.index] + sizeFix)
    );
    barRectShape[categoryDim.wh] = layout[categoryDim.wh];

    var clipShape = output.clipShape = {};
    // Consider that symbol may be overflow layout rect.
    clipShape[categoryDim.xy] = -layout[categoryDim.xy];
    clipShape[categoryDim.wh] = opt.ecSize[categoryDim.wh];
    clipShape[valueDim.xy] = 0;
    clipShape[valueDim.wh] = layout[valueDim.wh];
}

function createPath(symbolMeta) {
    var symbolPatternSize = symbolMeta.symbolPatternSize;
    var path = createSymbol(
        // Consider texture img, make a big size.
        symbolMeta.symbolType,
        -symbolPatternSize / 2,
        -symbolPatternSize / 2,
        symbolPatternSize,
        symbolPatternSize,
        symbolMeta.color
    );
    path.attr({
        culling: true
    });
    path.type !== 'image' && path.setStyle({
        strokeNoScale: true
    });

    return path;
}

function createOrUpdateRepeatSymbols(bar, opt, symbolMeta, isUpdate) {
    var bundle = bar.__pictorialBundle;
    var symbolSize = symbolMeta.symbolSize;
    var valueLineWidth = symbolMeta.valueLineWidth;
    var pathPosition = symbolMeta.pathPosition;
    var valueDim = opt.valueDim;
    var repeatTimes = symbolMeta.repeatTimes || 0;

    var index = 0;
    var unit = symbolSize[opt.valueDim.index] + valueLineWidth + symbolMeta.symbolMargin * 2;

    eachPath(bar, function (path) {
        path.__pictorialAnimationIndex = index;
        path.__pictorialRepeatTimes = repeatTimes;
        if (index < repeatTimes) {
            updateAttr(path, null, makeTarget(index), symbolMeta, isUpdate);
        }
        else {
            updateAttr(path, null, {scale: [0, 0]}, symbolMeta, isUpdate, function () {
                bundle.remove(path);
            });
        }

        updateHoverAnimation(path, symbolMeta);

        index++;
    });

    for (; index < repeatTimes; index++) {
        var path = createPath(symbolMeta);
        path.__pictorialAnimationIndex = index;
        path.__pictorialRepeatTimes = repeatTimes;
        bundle.add(path);

        var target = makeTarget(index);

        updateAttr(
            path,
            {
                position: target.position,
                scale: [0, 0]
            },
            {
                scale: target.scale,
                rotation: target.rotation
            },
            symbolMeta,
            isUpdate
        );

        // FIXME
        // If all emphasis/normal through action.
        path
            .on('mouseover', onMouseOver)
            .on('mouseout', onMouseOut);

        updateHoverAnimation(path, symbolMeta);
    }

    function makeTarget(index) {
        var position = pathPosition.slice();
        // (start && pxSign > 0) || (end && pxSign < 0): i = repeatTimes - index
        // Otherwise: i = index;
        var pxSign = symbolMeta.pxSign;
        var i = index;
        if (symbolMeta.symbolRepeatDirection === 'start' ? pxSign > 0 : pxSign < 0) {
            i = repeatTimes - 1 - index;
        }
        position[valueDim.index] = unit * (i - repeatTimes / 2 + 0.5) + pathPosition[valueDim.index];

        return {
            position: position,
            scale: symbolMeta.symbolScale.slice(),
            rotation: symbolMeta.rotation
        };
    }

    function onMouseOver() {
        eachPath(bar, function (path) {
            path.trigger('emphasis');
        });
    }

    function onMouseOut() {
        eachPath(bar, function (path) {
            path.trigger('normal');
        });
    }
}

function createOrUpdateSingleSymbol(bar, opt, symbolMeta, isUpdate) {
    var bundle = bar.__pictorialBundle;
    var mainPath = bar.__pictorialMainPath;

    if (!mainPath) {
        mainPath = bar.__pictorialMainPath = createPath(symbolMeta);
        bundle.add(mainPath);

        updateAttr(
            mainPath,
            {
                position: symbolMeta.pathPosition.slice(),
                scale: [0, 0],
                rotation: symbolMeta.rotation
            },
            {
                scale: symbolMeta.symbolScale.slice()
            },
            symbolMeta,
            isUpdate
        );

        mainPath
            .on('mouseover', onMouseOver)
            .on('mouseout', onMouseOut);
    }
    else {
        updateAttr(
            mainPath,
            null,
            {
                position: symbolMeta.pathPosition.slice(),
                scale: symbolMeta.symbolScale.slice(),
                rotation: symbolMeta.rotation
            },
            symbolMeta,
            isUpdate
        );
    }

    updateHoverAnimation(mainPath, symbolMeta);

    function onMouseOver() {
        this.trigger('emphasis');
    }

    function onMouseOut() {
        this.trigger('normal');
    }
}

// bar rect is used for label.
function createOrUpdateBarRect(bar, symbolMeta, isUpdate) {
    var rectShape = extend({}, symbolMeta.barRectShape);

    var barRect = bar.__pictorialBarRect;
    if (!barRect) {
        barRect = bar.__pictorialBarRect = new Rect({
            z2: 2,
            shape: rectShape,
            silent: true,
            style: {
                stroke: 'transparent',
                fill: 'transparent',
                lineWidth: 0
            }
        });

        bar.add(barRect);
    }
    else {
        updateAttr(barRect, null, {shape: rectShape}, symbolMeta, isUpdate);
    }
}

function createOrUpdateClip(bar, opt, symbolMeta, isUpdate) {
    // If not clip, symbol will be remove and rebuilt.
    if (symbolMeta.symbolClip) {
        var clipPath = bar.__pictorialClipPath;
        var clipShape = extend({}, symbolMeta.clipShape);
        var valueDim = opt.valueDim;
        var animationModel = symbolMeta.animationModel;
        var dataIndex = symbolMeta.dataIndex;

        if (clipPath) {
            updateProps(
                clipPath, {shape: clipShape}, animationModel, dataIndex
            );
        }
        else {
            clipShape[valueDim.wh] = 0;
            clipPath = new Rect({shape: clipShape});
            bar.__pictorialBundle.setClipPath(clipPath);
            bar.__pictorialClipPath = clipPath;

            var target = {};
            target[valueDim.wh] = symbolMeta.clipShape[valueDim.wh];

            graphic[isUpdate ? 'updateProps' : 'initProps'](
                clipPath, {shape: target}, animationModel, dataIndex
            );
        }
    }
}

function getItemModel(data, dataIndex) {
    var itemModel = data.getItemModel(dataIndex);
    itemModel.getAnimationDelayParams = getAnimationDelayParams;
    itemModel.isAnimationEnabled = isAnimationEnabled;
    return itemModel;
}

function getAnimationDelayParams(path) {
    // The order is the same as the z-order, see `symbolRepeatDiretion`.
    return {
        index: path.__pictorialAnimationIndex,
        count: path.__pictorialRepeatTimes
    };
}

function isAnimationEnabled() {
    // `animation` prop can be set on itemModel in pictorial bar chart.
    return this.parentModel.isAnimationEnabled() && !!this.getShallow('animation');
}

function updateHoverAnimation(path, symbolMeta) {
    path.off('emphasis').off('normal');

    var scale = symbolMeta.symbolScale.slice();

    symbolMeta.hoverAnimation && path
        .on('emphasis', function() {
            this.animateTo({
                scale: [scale[0] * 1.1, scale[1] * 1.1]
            }, 400, 'elasticOut');
        })
        .on('normal', function() {
            this.animateTo({
                scale: scale.slice()
            }, 400, 'elasticOut');
        });
}

function createBar(data, opt, symbolMeta, isUpdate) {
    // bar is the main element for each data.
    var bar = new Group();
    // bundle is used for location and clip.
    var bundle = new Group();
    bar.add(bundle);
    bar.__pictorialBundle = bundle;
    bundle.attr('position', symbolMeta.bundlePosition.slice());

    if (symbolMeta.symbolRepeat) {
        createOrUpdateRepeatSymbols(bar, opt, symbolMeta);
    }
    else {
        createOrUpdateSingleSymbol(bar, opt, symbolMeta);
    }

    createOrUpdateBarRect(bar, symbolMeta, isUpdate);

    createOrUpdateClip(bar, opt, symbolMeta, isUpdate);

    bar.__pictorialShapeStr = getShapeStr(data, symbolMeta);
    bar.__pictorialSymbolMeta = symbolMeta;

    return bar;
}

function updateBar(bar, opt, symbolMeta) {
    var animationModel = symbolMeta.animationModel;
    var dataIndex = symbolMeta.dataIndex;
    var bundle = bar.__pictorialBundle;

    updateProps(
        bundle, {position: symbolMeta.bundlePosition.slice()}, animationModel, dataIndex
    );

    if (symbolMeta.symbolRepeat) {
        createOrUpdateRepeatSymbols(bar, opt, symbolMeta, true);
    }
    else {
        createOrUpdateSingleSymbol(bar, opt, symbolMeta, true);
    }

    createOrUpdateBarRect(bar, symbolMeta, true);

    createOrUpdateClip(bar, opt, symbolMeta, true);
}

function removeBar(data, dataIndex, animationModel, bar) {
    // Not show text when animating
    var labelRect = bar.__pictorialBarRect;
    labelRect && (labelRect.style.text = null);

    var pathes = [];
    eachPath(bar, function (path) {
        pathes.push(path);
    });
    bar.__pictorialMainPath && pathes.push(bar.__pictorialMainPath);

    // I do not find proper remove animation for clip yet.
    bar.__pictorialClipPath && (animationModel = null);

    each$1(pathes, function (path) {
        updateProps(
            path, {scale: [0, 0]}, animationModel, dataIndex,
            function () {
                bar.parent && bar.parent.remove(bar);
            }
        );
    });

    data.setItemGraphicEl(dataIndex, null);
}

function getShapeStr(data, symbolMeta) {
    return [
        data.getItemVisual(symbolMeta.dataIndex, 'symbol') || 'none',
        !!symbolMeta.symbolRepeat,
        !!symbolMeta.symbolClip
    ].join(':');
}

function eachPath(bar, cb, context) {
    // Do not use Group#eachChild, because it do not support remove.
    each$1(bar.__pictorialBundle.children(), function (el) {
        el !== bar.__pictorialBarRect && cb.call(context, el);
    });
}

function updateAttr(el, immediateAttrs, animationAttrs, symbolMeta, isUpdate, cb) {
    immediateAttrs && el.attr(immediateAttrs);
    // when symbolCip used, only clip path has init animation, otherwise it would be weird effect.
    if (symbolMeta.symbolClip && !isUpdate) {
        animationAttrs && el.attr(animationAttrs);
    }
    else {
        animationAttrs && graphic[isUpdate ? 'updateProps' : 'initProps'](
            el, animationAttrs, symbolMeta.animationModel, symbolMeta.dataIndex, cb
        );
    }
}

function updateCommon$1(bar, opt, symbolMeta) {
    var color = symbolMeta.color;
    var dataIndex = symbolMeta.dataIndex;
    var itemModel = symbolMeta.itemModel;
    // Color must be excluded.
    // Because symbol provide setColor individually to set fill and stroke
    var normalStyle = itemModel.getModel('itemStyle').getItemStyle(['color']);
    var hoverStyle = itemModel.getModel('emphasis.itemStyle').getItemStyle();
    var cursorStyle = itemModel.getShallow('cursor');

    eachPath(bar, function (path) {
        // PENDING setColor should be before setStyle!!!
        path.setColor(color);
        path.setStyle(defaults(
            {
                fill: color,
                opacity: symbolMeta.opacity
            },
            normalStyle
        ));
        setHoverStyle(path, hoverStyle);

        cursorStyle && (path.cursor = cursorStyle);
        path.z2 = symbolMeta.z2;
    });

    var barRectHoverStyle = {};
    var barPositionOutside = opt.valueDim.posDesc[+(symbolMeta.boundingLength > 0)];
    var barRect = bar.__pictorialBarRect;

    setLabel(
        barRect.style, barRectHoverStyle, itemModel,
        color, opt.seriesModel, dataIndex, barPositionOutside
    );

    setHoverStyle(barRect, barRectHoverStyle);
}

function toIntTimes(times) {
    var roundedTimes = Math.round(times);
    // Escapse accurate error
    return Math.abs(times - roundedTimes) < 1e-4
        ? roundedTimes
        : Math.ceil(times);
}

// In case developer forget to include grid component
registerLayout(curry(
    layout, 'pictorialBar'
));
registerVisual(visualSymbol('pictorialBar', 'roundRect'));

/**
 * @constructor  module:echarts/coord/single/SingleAxis
 * @extends {module:echarts/coord/Axis}
 * @param {string} dim
 * @param {*} scale
 * @param {Array.<number>} coordExtent
 * @param {string} axisType
 * @param {string} position
 */
var SingleAxis = function (dim, scale, coordExtent, axisType, position) {

    Axis.call(this, dim, scale, coordExtent);

    /**
     * Axis type
     * - 'category'
     * - 'value'
     * - 'time'
     * - 'log'
     * @type {string}
     */
    this.type = axisType || 'value';

    /**
     * Axis position
     *  - 'top'
     *  - 'bottom'
     *  - 'left'
     *  - 'right'
     *  @type {string}
     */
    this.position = position || 'bottom';

    /**
     * Axis orient
     *  - 'horizontal'
     *  - 'vertical'
     * @type {[type]}
     */
    this.orient = null;

    /**
     * @type {number}
     */
    this._labelInterval = null;

};

SingleAxis.prototype = {

    constructor: SingleAxis,

    /**
     * Axis model
     * @type {module:echarts/coord/single/AxisModel}
     */
    model: null,

    /**
     * Judge the orient of the axis.
     * @return {boolean}
     */
    isHorizontal: function () {
        var position = this.position;
        return position === 'top' || position === 'bottom';

    },

    /**
     * @override
     */
    pointToData: function (point, clamp) {
        return this.coordinateSystem.pointToData(point, clamp)[0];
    },

    /**
     * Convert the local coord(processed by dataToCoord())
     * to global coord(concrete pixel coord).
     * designated by module:echarts/coord/single/Single.
     * @type {Function}
     */
    toGlobalCoord: null,

    /**
     * Convert the global coord to local coord.
     * designated by module:echarts/coord/single/Single.
     * @type {Function}
     */
    toLocalCoord: null

};

inherits(SingleAxis, Axis);

/**
 * Single coordinates system.
 */

/**
 * Create a single coordinates system.
 *
 * @param {module:echarts/coord/single/AxisModel} axisModel
 * @param {module:echarts/model/Global} ecModel
 * @param {module:echarts/ExtensionAPI} api
 */
function Single(axisModel, ecModel, api) {

    /**
     * @type {string}
     * @readOnly
     */
    this.dimension = 'single';

    /**
     * Add it just for draw tooltip.
     *
     * @type {Array.<string>}
     * @readOnly
     */
    this.dimensions = ['single'];

    /**
     * @private
     * @type {module:echarts/coord/single/SingleAxis}.
     */
    this._axis = null;

    /**
     * @private
     * @type {module:zrender/core/BoundingRect}
     */
    this._rect;

    this._init(axisModel, ecModel, api);

    /**
     * @type {module:echarts/coord/single/AxisModel}
     */
    this.model = axisModel;
}

Single.prototype = {

    type: 'singleAxis',

    axisPointerEnabled: true,

    constructor: Single,

    /**
     * Initialize single coordinate system.
     *
     * @param  {module:echarts/coord/single/AxisModel} axisModel
     * @param  {module:echarts/model/Global} ecModel
     * @param  {module:echarts/ExtensionAPI} api
     * @private
     */
    _init: function (axisModel, ecModel, api) {

        var dim = this.dimension;

        var axis = new SingleAxis(
            dim,
            createScaleByModel(axisModel),
            [0, 0],
            axisModel.get('type'),
            axisModel.get('position')
        );

        var isCategory = axis.type === 'category';
        axis.onBand = isCategory && axisModel.get('boundaryGap');
        axis.inverse = axisModel.get('inverse');
        axis.orient = axisModel.get('orient');

        axisModel.axis = axis;
        axis.model = axisModel;
        axis.coordinateSystem = this;
        this._axis = axis;
    },

    /**
     * Update axis scale after data processed
     * @param  {module:echarts/model/Global} ecModel
     * @param  {module:echarts/ExtensionAPI} api
     */
    update: function (ecModel, api) {
        ecModel.eachSeries(function (seriesModel) {
            if (seriesModel.coordinateSystem === this) {
                var data = seriesModel.getData();
                each$1(data.mapDimension(this.dimension, true), function (dim) {
                    this._axis.scale.unionExtentFromData(data, dim);
                }, this);
                niceScaleExtent(this._axis.scale, this._axis.model);
            }
        }, this);
    },

    /**
     * Resize the single coordinate system.
     *
     * @param  {module:echarts/coord/single/AxisModel} axisModel
     * @param  {module:echarts/ExtensionAPI} api
     */
    resize: function (axisModel, api) {
        this._rect = getLayoutRect(
            {
                left: axisModel.get('left'),
                top: axisModel.get('top'),
                right: axisModel.get('right'),
                bottom: axisModel.get('bottom'),
                width: axisModel.get('width'),
                height: axisModel.get('height')
            },
            {
                width: api.getWidth(),
                height: api.getHeight()
            }
        );

        this._adjustAxis();
    },

    /**
     * @return {module:zrender/core/BoundingRect}
     */
    getRect: function () {
        return this._rect;
    },

    /**
     * @private
     */
    _adjustAxis: function () {

        var rect = this._rect;
        var axis = this._axis;

        var isHorizontal = axis.isHorizontal();
        var extent = isHorizontal ? [0, rect.width] : [0, rect.height];
        var idx =  axis.reverse ? 1 : 0;

        axis.setExtent(extent[idx], extent[1 - idx]);

        this._updateAxisTransform(axis, isHorizontal ? rect.x : rect.y);

    },

    /**
     * @param  {module:echarts/coord/single/SingleAxis} axis
     * @param  {number} coordBase
     */
    _updateAxisTransform: function (axis, coordBase) {

        var axisExtent = axis.getExtent();
        var extentSum = axisExtent[0] + axisExtent[1];
        var isHorizontal = axis.isHorizontal();

        axis.toGlobalCoord = isHorizontal
            ? function (coord) {
                return coord + coordBase;
            }
            : function (coord) {
                return extentSum - coord + coordBase;
            };

        axis.toLocalCoord = isHorizontal
            ? function (coord) {
                return coord - coordBase;
            }
            : function (coord) {
                return extentSum - coord + coordBase;
            };
    },

    /**
     * Get axis.
     *
     * @return {module:echarts/coord/single/SingleAxis}
     */
    getAxis: function () {
        return this._axis;
    },

    /**
     * Get axis, add it just for draw tooltip.
     *
     * @return {[type]} [description]
     */
    getBaseAxis: function () {
        return this._axis;
    },

    /**
     * @return {Array.<module:echarts/coord/Axis>}
     */
    getAxes: function () {
        return [this._axis];
    },

    /**
     * @return {Object} {baseAxes: [], otherAxes: []}
     */
    getTooltipAxes: function () {
        return {baseAxes: [this.getAxis()]};
    },

    /**
     * If contain point.
     *
     * @param  {Array.<number>} point
     * @return {boolean}
     */
    containPoint: function (point) {
        var rect = this.getRect();
        var axis = this.getAxis();
        var orient = axis.orient;
        if (orient === 'horizontal') {
            return axis.contain(axis.toLocalCoord(point[0]))
            && (point[1] >= rect.y && point[1] <= (rect.y + rect.height));
        }
        else {
            return axis.contain(axis.toLocalCoord(point[1]))
            && (point[0] >= rect.y && point[0] <= (rect.y + rect.height));
        }
    },

    /**
     * @param {Array.<number>} point
     * @return {Array.<number>}
     */
    pointToData: function (point) {
        var axis = this.getAxis();
        return [axis.coordToData(axis.toLocalCoord(
            point[axis.orient === 'horizontal' ? 0 : 1]
        ))];
    },

    /**
     * Convert the series data to concrete point.
     *
     * @param  {number|Array.<number>} val
     * @return {Array.<number>}
     */
    dataToPoint: function (val) {
        var axis = this.getAxis();
        var rect = this.getRect();
        var pt = [];
        var idx = axis.orient === 'horizontal' ? 0 : 1;

        if (val instanceof Array) {
            val = val[0];
        }

        pt[idx] = axis.toGlobalCoord(axis.dataToCoord(+val));
        pt[1 - idx] = idx === 0 ? (rect.y + rect.height / 2) : (rect.x + rect.width / 2);
        return pt;
    }

};

/**
 * Single coordinate system creator.
 */

/**
 * Create single coordinate system and inject it into seriesModel.
 *
 * @param {module:echarts/model/Global} ecModel
 * @param {module:echarts/ExtensionAPI} api
 * @return {Array.<module:echarts/coord/single/Single>}
 */
function create$3(ecModel, api) {
    var singles = [];

    ecModel.eachComponent('singleAxis', function(axisModel, idx) {

        var single = new Single(axisModel, ecModel, api);
        single.name = 'single_' + idx;
        single.resize(axisModel, api);
        axisModel.coordinateSystem = single;
        singles.push(single);

    });

    ecModel.eachSeries(function (seriesModel) {
        if (seriesModel.get('coordinateSystem') === 'singleAxis') {
            var singleAxisModel = ecModel.queryComponents({
                mainType: 'singleAxis',
                index: seriesModel.get('singleAxisIndex'),
                id: seriesModel.get('singleAxisId')
            })[0];
            seriesModel.coordinateSystem = singleAxisModel && singleAxisModel.coordinateSystem;
        }
    });

    return singles;
}

CoordinateSystemManager.register('single', {
    create: create$3,
    dimensions: Single.prototype.dimensions
});

/**
 * @param {Object} opt {labelInside}
 * @return {Object} {
 *  position, rotation, labelDirection, labelOffset,
 *  tickDirection, labelRotate, labelInterval, z2
 * }
 */
function layout$2 (axisModel, opt) {
    opt = opt || {};
    var single = axisModel.coordinateSystem;
    var axis = axisModel.axis;
    var layout = {};

    var axisPosition = axis.position;
    var orient = axis.orient;

    var rect = single.getRect();
    var rectBound = [rect.x, rect.x + rect.width, rect.y, rect.y + rect.height];

    var positionMap = {
        horizontal: {top: rectBound[2], bottom: rectBound[3]},
        vertical: {left: rectBound[0], right: rectBound[1]}
    };

    layout.position = [
        orient === 'vertical'
            ? positionMap.vertical[axisPosition]
            : rectBound[0],
        orient === 'horizontal'
            ? positionMap.horizontal[axisPosition]
            : rectBound[3]
    ];

    var r = {horizontal: 0, vertical: 1};
    layout.rotation = Math.PI / 2 * r[orient];

    var directionMap = {top: -1, bottom: 1, right: 1, left: -1};

    layout.labelDirection = layout.tickDirection
        = layout.nameDirection
        = directionMap[axisPosition];

    if (axisModel.get('axisTick.inside')) {
        layout.tickDirection = -layout.tickDirection;
    }

    if (retrieve(opt.labelInside, axisModel.get('axisLabel.inside'))) {
        layout.labelDirection = -layout.labelDirection;
    }

    var labelRotation = opt.rotate;
    labelRotation == null && (labelRotation = axisModel.get('axisLabel.rotate'));
    layout.labelRotation = axisPosition === 'top' ? -labelRotation : labelRotation;

    layout.labelInterval = axis.getLabelInterval();

    layout.z2 = 1;

    return layout;
}

var getInterval$2 = AxisBuilder.getInterval;
var ifIgnoreOnTick$2 = AxisBuilder.ifIgnoreOnTick;

var axisBuilderAttrs$2 = [
    'axisLine', 'axisTickLabel', 'axisName'
];

var selfBuilderAttr = 'splitLine';

var SingleAxisView = AxisView.extend({

    type: 'singleAxis',

    axisPointerClass: 'SingleAxisPointer',

    render: function (axisModel, ecModel, api, payload) {

        var group = this.group;

        group.removeAll();

        var layout =  layout$2(axisModel);

        var axisBuilder = new AxisBuilder(axisModel, layout);

        each$1(axisBuilderAttrs$2, axisBuilder.add, axisBuilder);

        group.add(axisBuilder.getGroup());

        if (axisModel.get(selfBuilderAttr + '.show')) {
            this['_' + selfBuilderAttr](axisModel, layout.labelInterval);
        }

        SingleAxisView.superCall(this, 'render', axisModel, ecModel, api, payload);
    },

    _splitLine: function(axisModel, labelInterval) {
        var axis = axisModel.axis;

        if (axis.scale.isBlank()) {
            return;
        }

        var splitLineModel = axisModel.getModel('splitLine');
        var lineStyleModel = splitLineModel.getModel('lineStyle');
        var lineWidth = lineStyleModel.get('width');
        var lineColors = lineStyleModel.get('color');
        var lineInterval = getInterval$2(splitLineModel, labelInterval);

        lineColors = lineColors instanceof Array ? lineColors : [lineColors];

        var gridRect = axisModel.coordinateSystem.getRect();
        var isHorizontal = axis.isHorizontal();

        var splitLines = [];
        var lineCount = 0;

        var ticksCoords = axis.getTicksCoords();

        var p1 = [];
        var p2 = [];

        var showMinLabel = axisModel.get('axisLabel.showMinLabel');
        var showMaxLabel = axisModel.get('axisLabel.showMaxLabel');

        for (var i = 0; i < ticksCoords.length; ++i) {
            if (ifIgnoreOnTick$2(
                axis, i, lineInterval, ticksCoords.length,
                showMinLabel, showMaxLabel
            )) {
                continue;
            }
            var tickCoord = axis.toGlobalCoord(ticksCoords[i]);
            if (isHorizontal) {
                p1[0] = tickCoord;
                p1[1] = gridRect.y;
                p2[0] = tickCoord;
                p2[1] = gridRect.y + gridRect.height;
            }
            else {
                p1[0] = gridRect.x;
                p1[1] = tickCoord;
                p2[0] = gridRect.x + gridRect.width;
                p2[1] = tickCoord;
            }
            var colorIndex = (lineCount++) % lineColors.length;
            splitLines[colorIndex] = splitLines[colorIndex] || [];
            splitLines[colorIndex].push(new Line(
                subPixelOptimizeLine({
                    shape: {
                        x1: p1[0],
                        y1: p1[1],
                        x2: p2[0],
                        y2: p2[1]
                    },
                    style: {
                        lineWidth: lineWidth
                    },
                    silent: true
                })));
        }

        for (var i = 0; i < splitLines.length; ++i) {
            this.group.add(mergePath(splitLines[i], {
                style: {
                    stroke: lineColors[i % lineColors.length],
                    lineDash: lineStyleModel.getLineDash(lineWidth),
                    lineWidth: lineWidth
                },
                silent: true
            }));
        }
    }
});

var AxisModel$4 = ComponentModel.extend({

    type: 'singleAxis',

    layoutMode: 'box',

    /**
     * @type {module:echarts/coord/single/SingleAxis}
     */
    axis: null,

    /**
     * @type {module:echarts/coord/single/Single}
     */
    coordinateSystem: null,

    /**
     * @override
     */
    getCoordSysModel: function () {
        return this;
    }

});

var defaultOption$2 = {

    left: '5%',
    top: '5%',
    right: '5%',
    bottom: '5%',

    type: 'value',

    position: 'bottom',

    orient: 'horizontal',

    axisLine: {
        show: true,
        lineStyle: {
            width: 2,
            type: 'solid'
        }
    },

    // Single coordinate system and single axis is the,
    // which is used as the parent tooltip model.
    // same model, so we set default tooltip show as true.
    tooltip: {
        show: true
    },

    axisTick: {
        show: true,
        length: 6,
        lineStyle: {
            width: 2
        }
    },

    axisLabel: {
        show: true,
        interval: 'auto'
    },

    splitLine: {
        show: true,
        lineStyle: {
            type: 'dashed',
            opacity: 0.2
        }
    }
};

function getAxisType$2(axisName, option) {
    return option.type || (option.data ? 'category' : 'value');
}

merge(AxisModel$4.prototype, axisModelCommonMixin);

axisModelCreator('single', AxisModel$4, getAxisType$2, defaultOption$2);

/**
 * @param {Object} finder contains {seriesIndex, dataIndex, dataIndexInside}
 * @param {module:echarts/model/Global} ecModel
 * @return {Object} {point: [x, y], el: ...} point Will not be null.
 */
var findPointFromSeries = function (finder, ecModel) {
    var point = [];
    var seriesIndex = finder.seriesIndex;
    var seriesModel;
    if (seriesIndex == null || !(
        seriesModel = ecModel.getSeriesByIndex(seriesIndex)
    )) {
        return {point: []};
    }

    var data = seriesModel.getData();
    var dataIndex = queryDataIndex(data, finder);
    if (dataIndex == null || dataIndex < 0 || isArray(dataIndex)) {
        return {point: []};
    }

    var el = data.getItemGraphicEl(dataIndex);
    var coordSys = seriesModel.coordinateSystem;

    if (seriesModel.getTooltipPosition) {
        point = seriesModel.getTooltipPosition(dataIndex) || [];
    }
    else if (coordSys && coordSys.dataToPoint) {
        point = coordSys.dataToPoint(
            data.getValues(
                map(coordSys.dimensions, function (dim) {
                    return data.mapDimension(dim);
                }), dataIndex, true
            )
        ) || [];
    }
    else if (el) {
        // Use graphic bounding rect
        var rect = el.getBoundingRect().clone();
        rect.applyTransform(el.transform);
        point = [
            rect.x + rect.width / 2,
            rect.y + rect.height / 2
        ];
    }

    return {point: point, el: el};
};

var each$15 = each$1;
var curry$3 = curry;
var inner$6 = makeInner();

/**
 * Basic logic: check all axis, if they do not demand show/highlight,
 * then hide/downplay them.
 *
 * @param {Object} coordSysAxesInfo
 * @param {Object} payload
 * @param {string} [payload.currTrigger] 'click' | 'mousemove' | 'leave'
 * @param {Array.<number>} [payload.x] x and y, which are mandatory, specify a point to
 *              trigger axisPointer and tooltip.
 * @param {Array.<number>} [payload.y] x and y, which are mandatory, specify a point to
 *              trigger axisPointer and tooltip.
 * @param {Object} [payload.seriesIndex] finder, optional, restrict target axes.
 * @param {Object} [payload.dataIndex] finder, restrict target axes.
 * @param {Object} [payload.axesInfo] finder, restrict target axes.
 *        [{
 *          axisDim: 'x'|'y'|'angle'|...,
 *          axisIndex: ...,
 *          value: ...
 *        }, ...]
 * @param {Function} [payload.dispatchAction]
 * @param {Object} [payload.tooltipOption]
 * @param {Object|Array.<number>|Function} [payload.position] Tooltip position,
 *        which can be specified in dispatchAction
 * @param {module:echarts/model/Global} ecModel
 * @param {module:echarts/ExtensionAPI} api
 * @return {Object} content of event obj for echarts.connect.
 */
var axisTrigger = function (payload, ecModel, api) {
    var currTrigger = payload.currTrigger;
    var point = [payload.x, payload.y];
    var finder = payload;
    var dispatchAction = payload.dispatchAction || bind(api.dispatchAction, api);
    var coordSysAxesInfo = ecModel.getComponent('axisPointer').coordSysAxesInfo;

    // Pending
    // See #6121. But we are not able to reproduce it yet.
    if (!coordSysAxesInfo) {
        return;
    }

    if (illegalPoint(point)) {
        // Used in the default behavior of `connection`: use the sample seriesIndex
        // and dataIndex. And also used in the tooltipView trigger.
        point = findPointFromSeries({
            seriesIndex: finder.seriesIndex,
            // Do not use dataIndexInside from other ec instance.
            // FIXME: auto detect it?
            dataIndex: finder.dataIndex
        }, ecModel).point;
    }
    var isIllegalPoint = illegalPoint(point);

    // Axis and value can be specified when calling dispatchAction({type: 'updateAxisPointer'}).
    // Notice: In this case, it is difficult to get the `point` (which is necessary to show
    // tooltip, so if point is not given, we just use the point found by sample seriesIndex
    // and dataIndex.
    var inputAxesInfo = finder.axesInfo;

    var axesInfo = coordSysAxesInfo.axesInfo;
    var shouldHide = currTrigger === 'leave' || illegalPoint(point);
    var outputFinder = {};

    var showValueMap = {};
    var dataByCoordSys = {list: [], map: {}};
    var updaters = {
        showPointer: curry$3(showPointer, showValueMap),
        showTooltip: curry$3(showTooltip, dataByCoordSys)
    };

    // Process for triggered axes.
    each$15(coordSysAxesInfo.coordSysMap, function (coordSys, coordSysKey) {
        // If a point given, it must be contained by the coordinate system.
        var coordSysContainsPoint = isIllegalPoint || coordSys.containPoint(point);

        each$15(coordSysAxesInfo.coordSysAxesInfo[coordSysKey], function (axisInfo, key) {
            var axis = axisInfo.axis;
            var inputAxisInfo = findInputAxisInfo(inputAxesInfo, axisInfo);
            // If no inputAxesInfo, no axis is restricted.
            if (!shouldHide && coordSysContainsPoint && (!inputAxesInfo || inputAxisInfo)) {
                var val = inputAxisInfo && inputAxisInfo.value;
                if (val == null && !isIllegalPoint) {
                    val = axis.pointToData(point);
                }
                val != null && processOnAxis(axisInfo, val, updaters, false, outputFinder);
            }
        });
    });

    // Process for linked axes.
    var linkTriggers = {};
    each$15(axesInfo, function (tarAxisInfo, tarKey) {
        var linkGroup = tarAxisInfo.linkGroup;

        // If axis has been triggered in the previous stage, it should not be triggered by link.
        if (linkGroup && !showValueMap[tarKey]) {
            each$15(linkGroup.axesInfo, function (srcAxisInfo, srcKey) {
                var srcValItem = showValueMap[srcKey];
                // If srcValItem exist, source axis is triggered, so link to target axis.
                if (srcAxisInfo !== tarAxisInfo && srcValItem) {
                    var val = srcValItem.value;
                    linkGroup.mapper && (val = tarAxisInfo.axis.scale.parse(linkGroup.mapper(
                        val, makeMapperParam(srcAxisInfo), makeMapperParam(tarAxisInfo)
                    )));
                    linkTriggers[tarAxisInfo.key] = val;
                }
            });
        }
    });
    each$15(linkTriggers, function (val, tarKey) {
        processOnAxis(axesInfo[tarKey], val, updaters, true, outputFinder);
    });

    updateModelActually(showValueMap, axesInfo, outputFinder);
    dispatchTooltipActually(dataByCoordSys, point, payload, dispatchAction);
    dispatchHighDownActually(axesInfo, dispatchAction, api);

    return outputFinder;
};

function processOnAxis(axisInfo, newValue, updaters, dontSnap, outputFinder) {
    var axis = axisInfo.axis;

    if (axis.scale.isBlank() || !axis.containData(newValue)) {
        return;
    }

    if (!axisInfo.involveSeries) {
        updaters.showPointer(axisInfo, newValue);
        return;
    }

    // Heavy calculation. So put it after axis.containData checking.
    var payloadInfo = buildPayloadsBySeries(newValue, axisInfo);
    var payloadBatch = payloadInfo.payloadBatch;
    var snapToValue = payloadInfo.snapToValue;

    // Fill content of event obj for echarts.connect.
    // By defualt use the first involved series data as a sample to connect.
    if (payloadBatch[0] && outputFinder.seriesIndex == null) {
        extend(outputFinder, payloadBatch[0]);
    }

    // If no linkSource input, this process is for collecting link
    // target, where snap should not be accepted.
    if (!dontSnap && axisInfo.snap) {
        if (axis.containData(snapToValue) && snapToValue != null) {
            newValue = snapToValue;
        }
    }

    updaters.showPointer(axisInfo, newValue, payloadBatch, outputFinder);
    // Tooltip should always be snapToValue, otherwise there will be
    // incorrect "axis value ~ series value" mapping displayed in tooltip.
    updaters.showTooltip(axisInfo, payloadInfo, snapToValue);
}

function buildPayloadsBySeries(value, axisInfo) {
    var axis = axisInfo.axis;
    var dim = axis.dim;
    var snapToValue = value;
    var payloadBatch = [];
    var minDist = Number.MAX_VALUE;
    var minDiff = -1;

    each$15(axisInfo.seriesModels, function (series, idx) {
        var dataDim = series.getData().mapDimension(dim, true);
        var seriesNestestValue;
        var dataIndices;

        if (series.getAxisTooltipData) {
            var result = series.getAxisTooltipData(dataDim, value, axis);
            dataIndices = result.dataIndices;
            seriesNestestValue = result.nestestValue;
        }
        else {
            dataIndices = series.getData().indicesOfNearest(
                dataDim[0],
                value,
                // Add a threshold to avoid find the wrong dataIndex
                // when data length is not same.
                // false,
                axis.type === 'category' ? 0.5 : null
            );
            if (!dataIndices.length) {
                return;
            }
            seriesNestestValue = series.getData().get(dataDim[0], dataIndices[0]);
        }

        if (seriesNestestValue == null || !isFinite(seriesNestestValue)) {
            return;
        }

        var diff = value - seriesNestestValue;
        var dist = Math.abs(diff);
        // Consider category case
        if (dist <= minDist) {
            if (dist < minDist || (diff >= 0 && minDiff < 0)) {
                minDist = dist;
                minDiff = diff;
                snapToValue = seriesNestestValue;
                payloadBatch.length = 0;
            }
            each$15(dataIndices, function (dataIndex) {
                payloadBatch.push({
                    seriesIndex: series.seriesIndex,
                    dataIndexInside: dataIndex,
                    dataIndex: series.getData().getRawIndex(dataIndex)
                });
            });
        }
    });

    return {
        payloadBatch: payloadBatch,
        snapToValue: snapToValue
    };
}

function showPointer(showValueMap, axisInfo, value, payloadBatch) {
    showValueMap[axisInfo.key] = {value: value, payloadBatch: payloadBatch};
}

function showTooltip(dataByCoordSys, axisInfo, payloadInfo, value) {
    var payloadBatch = payloadInfo.payloadBatch;
    var axis = axisInfo.axis;
    var axisModel = axis.model;
    var axisPointerModel = axisInfo.axisPointerModel;

    // If no data, do not create anything in dataByCoordSys,
    // whose length will be used to judge whether dispatch action.
    if (!axisInfo.triggerTooltip || !payloadBatch.length) {
        return;
    }

    var coordSysModel = axisInfo.coordSys.model;
    var coordSysKey = makeKey(coordSysModel);
    var coordSysItem = dataByCoordSys.map[coordSysKey];
    if (!coordSysItem) {
        coordSysItem = dataByCoordSys.map[coordSysKey] = {
            coordSysId: coordSysModel.id,
            coordSysIndex: coordSysModel.componentIndex,
            coordSysType: coordSysModel.type,
            coordSysMainType: coordSysModel.mainType,
            dataByAxis: []
        };
        dataByCoordSys.list.push(coordSysItem);
    }

    coordSysItem.dataByAxis.push({
        axisDim: axis.dim,
        axisIndex: axisModel.componentIndex,
        axisType: axisModel.type,
        axisId: axisModel.id,
        value: value,
        // Caustion: viewHelper.getValueLabel is actually on "view stage", which
        // depends that all models have been updated. So it should not be performed
        // here. Considering axisPointerModel used here is volatile, which is hard
        // to be retrieve in TooltipView, we prepare parameters here.
        valueLabelOpt: {
            precision: axisPointerModel.get('label.precision'),
            formatter: axisPointerModel.get('label.formatter')
        },
        seriesDataIndices: payloadBatch.slice()
    });
}

function updateModelActually(showValueMap, axesInfo, outputFinder) {
    var outputAxesInfo = outputFinder.axesInfo = [];
    // Basic logic: If no 'show' required, 'hide' this axisPointer.
    each$15(axesInfo, function (axisInfo, key) {
        var option = axisInfo.axisPointerModel.option;
        var valItem = showValueMap[key];

        if (valItem) {
            !axisInfo.useHandle && (option.status = 'show');
            option.value = valItem.value;
            // For label formatter param and highlight.
            option.seriesDataIndices = (valItem.payloadBatch || []).slice();
        }
        // When always show (e.g., handle used), remain
        // original value and status.
        else {
            // If hide, value still need to be set, consider
            // click legend to toggle axis blank.
            !axisInfo.useHandle && (option.status = 'hide');
        }

        // If status is 'hide', should be no info in payload.
        option.status === 'show' && outputAxesInfo.push({
            axisDim: axisInfo.axis.dim,
            axisIndex: axisInfo.axis.model.componentIndex,
            value: option.value
        });
    });
}

function dispatchTooltipActually(dataByCoordSys, point, payload, dispatchAction) {
    // Basic logic: If no showTip required, hideTip will be dispatched.
    if (illegalPoint(point) || !dataByCoordSys.list.length) {
        dispatchAction({type: 'hideTip'});
        return;
    }

    // In most case only one axis (or event one series is used). It is
    // convinient to fetch payload.seriesIndex and payload.dataIndex
    // dirtectly. So put the first seriesIndex and dataIndex of the first
    // axis on the payload.
    var sampleItem = ((dataByCoordSys.list[0].dataByAxis[0] || {}).seriesDataIndices || [])[0] || {};

    dispatchAction({
        type: 'showTip',
        escapeConnect: true,
        x: point[0],
        y: point[1],
        tooltipOption: payload.tooltipOption,
        position: payload.position,
        dataIndexInside: sampleItem.dataIndexInside,
        dataIndex: sampleItem.dataIndex,
        seriesIndex: sampleItem.seriesIndex,
        dataByCoordSys: dataByCoordSys.list
    });
}

function dispatchHighDownActually(axesInfo, dispatchAction, api) {
    // FIXME
    // highlight status modification shoule be a stage of main process?
    // (Consider confilct (e.g., legend and axisPointer) and setOption)

    var zr = api.getZr();
    var highDownKey = 'axisPointerLastHighlights';
    var lastHighlights = inner$6(zr)[highDownKey] || {};
    var newHighlights = inner$6(zr)[highDownKey] = {};

    // Update highlight/downplay status according to axisPointer model.
    // Build hash map and remove duplicate incidentally.
    each$15(axesInfo, function (axisInfo, key) {
        var option = axisInfo.axisPointerModel.option;
        option.status === 'show' && each$15(option.seriesDataIndices, function (batchItem) {
            var key = batchItem.seriesIndex + ' | ' + batchItem.dataIndex;
            newHighlights[key] = batchItem;
        });
    });

    // Diff.
    var toHighlight = [];
    var toDownplay = [];
    each$1(lastHighlights, function (batchItem, key) {
        !newHighlights[key] && toDownplay.push(batchItem);
    });
    each$1(newHighlights, function (batchItem, key) {
        !lastHighlights[key] && toHighlight.push(batchItem);
    });

    toDownplay.length && api.dispatchAction({
        type: 'downplay', escapeConnect: true, batch: toDownplay
    });
    toHighlight.length && api.dispatchAction({
        type: 'highlight', escapeConnect: true, batch: toHighlight
    });
}

function findInputAxisInfo(inputAxesInfo, axisInfo) {
    for (var i = 0; i < (inputAxesInfo || []).length; i++) {
        var inputAxisInfo = inputAxesInfo[i];
        if (axisInfo.axis.dim === inputAxisInfo.axisDim
            && axisInfo.axis.model.componentIndex === inputAxisInfo.axisIndex
        ) {
            return inputAxisInfo;
        }
    }
}

function makeMapperParam(axisInfo) {
    var axisModel = axisInfo.axis.model;
    var item = {};
    var dim = item.axisDim = axisInfo.axis.dim;
    item.axisIndex = item[dim + 'AxisIndex'] = axisModel.componentIndex;
    item.axisName = item[dim + 'AxisName'] = axisModel.name;
    item.axisId = item[dim + 'AxisId'] = axisModel.id;
    return item;
}

function illegalPoint(point) {
    return !point || point[0] == null || isNaN(point[0]) || point[1] == null || isNaN(point[1]);
}

var AxisPointerModel = extendComponentModel({

    type: 'axisPointer',

    coordSysAxesInfo: null,

    defaultOption: {
        // 'auto' means that show when triggered by tooltip or handle.
        show: 'auto',
        // 'click' | 'mousemove' | 'none'
        triggerOn: null, // set default in AxisPonterView.js

        zlevel: 0,
        z: 50,

        type: 'line',
        // axispointer triggered by tootip determine snap automatically,
        // see `modelHelper`.
        snap: false,
        triggerTooltip: true,

        value: null,
        status: null, // Init value depends on whether handle is used.

        // [group0, group1, ...]
        // Each group can be: {
        //      mapper: function () {},
        //      singleTooltip: 'multiple',  // 'multiple' or 'single'
        //      xAxisId: ...,
        //      yAxisName: ...,
        //      angleAxisIndex: ...
        // }
        // mapper: can be ignored.
        //      input: {axisInfo, value}
        //      output: {axisInfo, value}
        link: [],

        // Do not set 'auto' here, otherwise global animation: false
        // will not effect at this axispointer.
        animation: null,
        animationDurationUpdate: 200,

        lineStyle: {
            color: '#aaa',
            width: 1,
            type: 'solid'
        },

        shadowStyle: {
            color: 'rgba(150,150,150,0.3)'
        },

        label: {
            show: true,
            formatter: null, // string | Function
            precision: 'auto', // Or a number like 0, 1, 2 ...
            margin: 3,
            color: '#fff',
            padding: [5, 7, 5, 7],
            backgroundColor: 'auto', // default: axis line color
            borderColor: null,
            borderWidth: 0,
            shadowBlur: 3,
            shadowColor: '#aaa'
            // Considering applicability, common style should
            // better not have shadowOffset.
            // shadowOffsetX: 0,
            // shadowOffsetY: 2
        },

        handle: {
            show: false,
            icon: 'M10.7,11.9v-1.3H9.3v1.3c-4.9,0.3-8.8,4.4-8.8,9.4c0,5,3.9,9.1,8.8,9.4h1.3c4.9-0.3,8.8-4.4,8.8-9.4C19.5,16.3,15.6,12.2,10.7,11.9z M13.3,24.4H6.7v-1.2h6.6z M13.3,22H6.7v-1.2h6.6z M13.3,19.6H6.7v-1.2h6.6z', // jshint ignore:line
            size: 45,
            // handle margin is from symbol center to axis, which is stable when circular move.
            margin: 50,
            // color: '#1b8bbd'
            // color: '#2f4554'
            color: '#333',
            shadowBlur: 3,
            shadowColor: '#aaa',
            shadowOffsetX: 0,
            shadowOffsetY: 2,

            // For mobile performance
            throttle: 40
        }
    }

});

var inner$7 = makeInner();
var each$16 = each$1;

/**
 * @param {string} key
 * @param {module:echarts/ExtensionAPI} api
 * @param {Function} handler
 *      param: {string} currTrigger
 *      param: {Array.<number>} point
 */
function register(key, api, handler) {
    if (env$1.node) {
        return;
    }

    var zr = api.getZr();
    inner$7(zr).records || (inner$7(zr).records = {});

    initGlobalListeners(zr, api);

    var record = inner$7(zr).records[key] || (inner$7(zr).records[key] = {});
    record.handler = handler;
}

function initGlobalListeners(zr, api) {
    if (inner$7(zr).initialized) {
        return;
    }

    inner$7(zr).initialized = true;

    useHandler('click', curry(doEnter, 'click'));
    useHandler('mousemove', curry(doEnter, 'mousemove'));
    // useHandler('mouseout', onLeave);
    useHandler('globalout', onLeave);

    function useHandler(eventType, cb) {
        zr.on(eventType, function (e) {
            var dis = makeDispatchAction(api);

            each$16(inner$7(zr).records, function (record) {
                record && cb(record, e, dis.dispatchAction);
            });

            dispatchTooltipFinally(dis.pendings, api);
        });
    }
}

function dispatchTooltipFinally(pendings, api) {
    var showLen = pendings.showTip.length;
    var hideLen = pendings.hideTip.length;

    var actuallyPayload;
    if (showLen) {
        actuallyPayload = pendings.showTip[showLen - 1];
    }
    else if (hideLen) {
        actuallyPayload = pendings.hideTip[hideLen - 1];
    }
    if (actuallyPayload) {
        actuallyPayload.dispatchAction = null;
        api.dispatchAction(actuallyPayload);
    }
}

function onLeave(record, e, dispatchAction) {
    record.handler('leave', null, dispatchAction);
}

function doEnter(currTrigger, record, e, dispatchAction) {
    record.handler(currTrigger, e, dispatchAction);
}

function makeDispatchAction(api) {
    var pendings = {
        showTip: [],
        hideTip: []
    };
    // FIXME
    // better approach?
    // 'showTip' and 'hideTip' can be triggered by axisPointer and tooltip,
    // which may be conflict, (axisPointer call showTip but tooltip call hideTip);
    // So we have to add "final stage" to merge those dispatched actions.
    var dispatchAction = function (payload) {
        var pendingList = pendings[payload.type];
        if (pendingList) {
            pendingList.push(payload);
        }
        else {
            payload.dispatchAction = dispatchAction;
            api.dispatchAction(payload);
        }
    };

    return {
        dispatchAction: dispatchAction,
        pendings: pendings
    };
}

/**
 * @param {string} key
 * @param {module:echarts/ExtensionAPI} api
 */
function unregister(key, api) {
    if (env$1.node) {
        return;
    }
    var zr = api.getZr();
    var record = (inner$7(zr).records || {})[key];
    if (record) {
        inner$7(zr).records[key] = null;
    }
}

var AxisPointerView = extendComponentView({

    type: 'axisPointer',

    render: function (globalAxisPointerModel, ecModel, api) {
        var globalTooltipModel = ecModel.getComponent('tooltip');
        var triggerOn = globalAxisPointerModel.get('triggerOn')
            || (globalTooltipModel && globalTooltipModel.get('triggerOn') || 'mousemove|click');

        // Register global listener in AxisPointerView to enable
        // AxisPointerView to be independent to Tooltip.
        register(
            'axisPointer',
            api,
            function (currTrigger, e, dispatchAction) {
                // If 'none', it is not controlled by mouse totally.
                if (triggerOn !== 'none'
                    && (currTrigger === 'leave' || triggerOn.indexOf(currTrigger) >= 0)
                ) {
                    dispatchAction({
                        type: 'updateAxisPointer',
                        currTrigger: currTrigger,
                        x: e && e.offsetX,
                        y: e && e.offsetY
                    });
                }
            }
        );
    },

    /**
     * @override
     */
    remove: function (ecModel, api) {
        unregister(api.getZr(), 'axisPointer');
        AxisPointerView.superApply(this._model, 'remove', arguments);
    },

    /**
     * @override
     */
    dispose: function (ecModel, api) {
        unregister('axisPointer', api);
        AxisPointerView.superApply(this._model, 'dispose', arguments);
    }

});

var inner$8 = makeInner();
var clone$4 = clone;
var bind$2 = bind;

/**
 * Base axis pointer class in 2D.
 * Implemenents {module:echarts/component/axis/IAxisPointer}.
 */
function BaseAxisPointer () {
}

BaseAxisPointer.prototype = {

    /**
     * @private
     */
    _group: null,

    /**
     * @private
     */
    _lastGraphicKey: null,

    /**
     * @private
     */
    _handle: null,

    /**
     * @private
     */
    _dragging: false,

    /**
     * @private
     */
    _lastValue: null,

    /**
     * @private
     */
    _lastStatus: null,

    /**
     * @private
     */
    _payloadInfo: null,

    /**
     * In px, arbitrary value. Do not set too small,
     * no animation is ok for most cases.
     * @protected
     */
    animationThreshold: 15,

    /**
     * @implement
     */
    render: function (axisModel, axisPointerModel, api, forceRender) {
        var value = axisPointerModel.get('value');
        var status = axisPointerModel.get('status');

        // Bind them to `this`, not in closure, otherwise they will not
        // be replaced when user calling setOption in not merge mode.
        this._axisModel = axisModel;
        this._axisPointerModel = axisPointerModel;
        this._api = api;

        // Optimize: `render` will be called repeatly during mouse move.
        // So it is power consuming if performing `render` each time,
        // especially on mobile device.
        if (!forceRender
            && this._lastValue === value
            && this._lastStatus === status
        ) {
            return;
        }
        this._lastValue = value;
        this._lastStatus = status;

        var group = this._group;
        var handle = this._handle;

        if (!status || status === 'hide') {
            // Do not clear here, for animation better.
            group && group.hide();
            handle && handle.hide();
            return;
        }
        group && group.show();
        handle && handle.show();

        // Otherwise status is 'show'
        var elOption = {};
        this.makeElOption(elOption, value, axisModel, axisPointerModel, api);

        // Enable change axis pointer type.
        var graphicKey = elOption.graphicKey;
        if (graphicKey !== this._lastGraphicKey) {
            this.clear(api);
        }
        this._lastGraphicKey = graphicKey;

        var moveAnimation = this._moveAnimation =
            this.determineAnimation(axisModel, axisPointerModel);

        if (!group) {
            group = this._group = new Group();
            this.createPointerEl(group, elOption, axisModel, axisPointerModel);
            this.createLabelEl(group, elOption, axisModel, axisPointerModel);
            api.getZr().add(group);
        }
        else {
            var doUpdateProps = curry(updateProps$1, axisPointerModel, moveAnimation);
            this.updatePointerEl(group, elOption, doUpdateProps, axisPointerModel);
            this.updateLabelEl(group, elOption, doUpdateProps, axisPointerModel);
        }

        updateMandatoryProps(group, axisPointerModel, true);

        this._renderHandle(value);
    },

    /**
     * @implement
     */
    remove: function (api) {
        this.clear(api);
    },

    /**
     * @implement
     */
    dispose: function (api) {
        this.clear(api);
    },

    /**
     * @protected
     */
    determineAnimation: function (axisModel, axisPointerModel) {
        var animation = axisPointerModel.get('animation');
        var axis = axisModel.axis;
        var isCategoryAxis = axis.type === 'category';
        var useSnap = axisPointerModel.get('snap');

        // Value axis without snap always do not snap.
        if (!useSnap && !isCategoryAxis) {
            return false;
        }

        if (animation === 'auto' || animation == null) {
            var animationThreshold = this.animationThreshold;
            if (isCategoryAxis && axis.getBandWidth() > animationThreshold) {
                return true;
            }

            // It is important to auto animation when snap used. Consider if there is
            // a dataZoom, animation will be disabled when too many points exist, while
            // it will be enabled for better visual effect when little points exist.
            if (useSnap) {
                var seriesDataCount = getAxisInfo(axisModel).seriesDataCount;
                var axisExtent = axis.getExtent();
                // Approximate band width
                return Math.abs(axisExtent[0] - axisExtent[1]) / seriesDataCount > animationThreshold;
            }

            return false;
        }

        return animation === true;
    },

    /**
     * add {pointer, label, graphicKey} to elOption
     * @protected
     */
    makeElOption: function (elOption, value, axisModel, axisPointerModel, api) {
        // Shoule be implemenented by sub-class.
    },

    /**
     * @protected
     */
    createPointerEl: function (group, elOption, axisModel, axisPointerModel) {
        var pointerOption = elOption.pointer;
        if (pointerOption) {
            var pointerEl = inner$8(group).pointerEl = new graphic[pointerOption.type](
                clone$4(elOption.pointer)
            );
            group.add(pointerEl);
        }
    },

    /**
     * @protected
     */
    createLabelEl: function (group, elOption, axisModel, axisPointerModel) {
        if (elOption.label) {
            var labelEl = inner$8(group).labelEl = new Rect(
                clone$4(elOption.label)
            );

            group.add(labelEl);
            updateLabelShowHide(labelEl, axisPointerModel);
        }
    },

    /**
     * @protected
     */
    updatePointerEl: function (group, elOption, updateProps$$1) {
        var pointerEl = inner$8(group).pointerEl;
        if (pointerEl) {
            pointerEl.setStyle(elOption.pointer.style);
            updateProps$$1(pointerEl, {shape: elOption.pointer.shape});
        }
    },

    /**
     * @protected
     */
    updateLabelEl: function (group, elOption, updateProps$$1, axisPointerModel) {
        var labelEl = inner$8(group).labelEl;
        if (labelEl) {
            labelEl.setStyle(elOption.label.style);
            updateProps$$1(labelEl, {
                // Consider text length change in vertical axis, animation should
                // be used on shape, otherwise the effect will be weird.
                shape: elOption.label.shape,
                position: elOption.label.position
            });

            updateLabelShowHide(labelEl, axisPointerModel);
        }
    },

    /**
     * @private
     */
    _renderHandle: function (value) {
        if (this._dragging || !this.updateHandleTransform) {
            return;
        }

        var axisPointerModel = this._axisPointerModel;
        var zr = this._api.getZr();
        var handle = this._handle;
        var handleModel = axisPointerModel.getModel('handle');

        var status = axisPointerModel.get('status');
        if (!handleModel.get('show') || !status || status === 'hide') {
            handle && zr.remove(handle);
            this._handle = null;
            return;
        }

        var isInit;
        if (!this._handle) {
            isInit = true;
            handle = this._handle = createIcon(
                handleModel.get('icon'),
                {
                    cursor: 'move',
                    draggable: true,
                    onmousemove: function (e) {
                        // Fot mobile devicem, prevent screen slider on the button.
                        stop(e.event);
                    },
                    onmousedown: bind$2(this._onHandleDragMove, this, 0, 0),
                    drift: bind$2(this._onHandleDragMove, this),
                    ondragend: bind$2(this._onHandleDragEnd, this)
                }
            );
            zr.add(handle);
        }

        updateMandatoryProps(handle, axisPointerModel, false);

        // update style
        var includeStyles = [
            'color', 'borderColor', 'borderWidth', 'opacity',
            'shadowColor', 'shadowBlur', 'shadowOffsetX', 'shadowOffsetY'
        ];
        handle.setStyle(handleModel.getItemStyle(null, includeStyles));

        // update position
        var handleSize = handleModel.get('size');
        if (!isArray(handleSize)) {
            handleSize = [handleSize, handleSize];
        }
        handle.attr('scale', [handleSize[0] / 2, handleSize[1] / 2]);

        createOrUpdate(
            this,
            '_doDispatchAxisPointer',
            handleModel.get('throttle') || 0,
            'fixRate'
        );

        this._moveHandleToValue(value, isInit);
    },

    /**
     * @private
     */
    _moveHandleToValue: function (value, isInit) {
        updateProps$1(
            this._axisPointerModel,
            !isInit && this._moveAnimation,
            this._handle,
            getHandleTransProps(this.getHandleTransform(
                value, this._axisModel, this._axisPointerModel
            ))
        );
    },

    /**
     * @private
     */
    _onHandleDragMove: function (dx, dy) {
        var handle = this._handle;
        if (!handle) {
            return;
        }

        this._dragging = true;

        // Persistent for throttle.
        var trans = this.updateHandleTransform(
            getHandleTransProps(handle),
            [dx, dy],
            this._axisModel,
            this._axisPointerModel
        );
        this._payloadInfo = trans;

        handle.stopAnimation();
        handle.attr(getHandleTransProps(trans));
        inner$8(handle).lastProp = null;

        this._doDispatchAxisPointer();
    },

    /**
     * Throttled method.
     * @private
     */
    _doDispatchAxisPointer: function () {
        var handle = this._handle;
        if (!handle) {
            return;
        }

        var payloadInfo = this._payloadInfo;
        var axisModel = this._axisModel;
        this._api.dispatchAction({
            type: 'updateAxisPointer',
            x: payloadInfo.cursorPoint[0],
            y: payloadInfo.cursorPoint[1],
            tooltipOption: payloadInfo.tooltipOption,
            axesInfo: [{
                axisDim: axisModel.axis.dim,
                axisIndex: axisModel.componentIndex
            }]
        });
    },

    /**
     * @private
     */
    _onHandleDragEnd: function (moveAnimation) {
        this._dragging = false;
        var handle = this._handle;
        if (!handle) {
            return;
        }

        var value = this._axisPointerModel.get('value');
        // Consider snap or categroy axis, handle may be not consistent with
        // axisPointer. So move handle to align the exact value position when
        // drag ended.
        this._moveHandleToValue(value);

        // For the effect: tooltip will be shown when finger holding on handle
        // button, and will be hidden after finger left handle button.
        this._api.dispatchAction({
            type: 'hideTip'
        });
    },

    /**
     * Should be implemenented by sub-class if support `handle`.
     * @protected
     * @param {number} value
     * @param {module:echarts/model/Model} axisModel
     * @param {module:echarts/model/Model} axisPointerModel
     * @return {Object} {position: [x, y], rotation: 0}
     */
    getHandleTransform: null,

    /**
     * * Should be implemenented by sub-class if support `handle`.
     * @protected
     * @param {Object} transform {position, rotation}
     * @param {Array.<number>} delta [dx, dy]
     * @param {module:echarts/model/Model} axisModel
     * @param {module:echarts/model/Model} axisPointerModel
     * @return {Object} {position: [x, y], rotation: 0, cursorPoint: [x, y]}
     */
    updateHandleTransform: null,

    /**
     * @private
     */
    clear: function (api) {
        this._lastValue = null;
        this._lastStatus = null;

        var zr = api.getZr();
        var group = this._group;
        var handle = this._handle;
        if (zr && group) {
            this._lastGraphicKey = null;
            group && zr.remove(group);
            handle && zr.remove(handle);
            this._group = null;
            this._handle = null;
            this._payloadInfo = null;
        }
    },

    /**
     * @protected
     */
    doClear: function () {
        // Implemented by sub-class if necessary.
    },

    /**
     * @protected
     * @param {Array.<number>} xy
     * @param {Array.<number>} wh
     * @param {number} [xDimIndex=0] or 1
     */
    buildLabel: function (xy, wh, xDimIndex) {
        xDimIndex = xDimIndex || 0;
        return {
            x: xy[xDimIndex],
            y: xy[1 - xDimIndex],
            width: wh[xDimIndex],
            height: wh[1 - xDimIndex]
        };
    }
};

BaseAxisPointer.prototype.constructor = BaseAxisPointer;


function updateProps$1(animationModel, moveAnimation, el, props) {
    // Animation optimize.
    if (!propsEqual(inner$8(el).lastProp, props)) {
        inner$8(el).lastProp = props;
        moveAnimation
            ? updateProps(el, props, animationModel)
            : (el.stopAnimation(), el.attr(props));
    }
}

function propsEqual(lastProps, newProps) {
    if (isObject$1(lastProps) && isObject$1(newProps)) {
        var equals = true;
        each$1(newProps, function (item, key) {
            equals = equals && propsEqual(lastProps[key], item);
        });
        return !!equals;
    }
    else {
        return lastProps === newProps;
    }
}

function updateLabelShowHide(labelEl, axisPointerModel) {
    labelEl[axisPointerModel.get('label.show') ? 'show' : 'hide']();
}

function getHandleTransProps(trans) {
    return {
        position: trans.position.slice(),
        rotation: trans.rotation || 0
    };
}

function updateMandatoryProps(group, axisPointerModel, silent) {
    var z = axisPointerModel.get('z');
    var zlevel = axisPointerModel.get('zlevel');

    group && group.traverse(function (el) {
        if (el.type !== 'group') {
            z != null && (el.z = z);
            zlevel != null && (el.zlevel = zlevel);
            el.silent = silent;
        }
    });
}

enableClassExtend(BaseAxisPointer);

/**
 * @param {module:echarts/model/Model} axisPointerModel
 */
function buildElStyle(axisPointerModel) {
    var axisPointerType = axisPointerModel.get('type');
    var styleModel = axisPointerModel.getModel(axisPointerType + 'Style');
    var style;
    if (axisPointerType === 'line') {
        style = styleModel.getLineStyle();
        style.fill = null;
    }
    else if (axisPointerType === 'shadow') {
        style = styleModel.getAreaStyle();
        style.stroke = null;
    }
    return style;
}

/**
 * @param {Function} labelPos {align, verticalAlign, position}
 */
function buildLabelElOption(
    elOption, axisModel, axisPointerModel, api, labelPos
) {
    var value = axisPointerModel.get('value');
    var text = getValueLabel(
        value, axisModel.axis, axisModel.ecModel,
        axisPointerModel.get('seriesDataIndices'),
        {
            precision: axisPointerModel.get('label.precision'),
            formatter: axisPointerModel.get('label.formatter')
        }
    );
    var labelModel = axisPointerModel.getModel('label');
    var paddings = normalizeCssArray$1(labelModel.get('padding') || 0);

    var font = labelModel.getFont();
    var textRect = getBoundingRect(text, font);

    var position = labelPos.position;
    var width = textRect.width + paddings[1] + paddings[3];
    var height = textRect.height + paddings[0] + paddings[2];

    // Adjust by align.
    var align = labelPos.align;
    align === 'right' && (position[0] -= width);
    align === 'center' && (position[0] -= width / 2);
    var verticalAlign = labelPos.verticalAlign;
    verticalAlign === 'bottom' && (position[1] -= height);
    verticalAlign === 'middle' && (position[1] -= height / 2);

    // Not overflow ec container
    confineInContainer(position, width, height, api);

    var bgColor = labelModel.get('backgroundColor');
    if (!bgColor || bgColor === 'auto') {
        bgColor = axisModel.get('axisLine.lineStyle.color');
    }

    elOption.label = {
        shape: {x: 0, y: 0, width: width, height: height, r: labelModel.get('borderRadius')},
        position: position.slice(),
        // TODO: rich
        style: {
            text: text,
            textFont: font,
            textFill: labelModel.getTextColor(),
            textPosition: 'inside',
            fill: bgColor,
            stroke: labelModel.get('borderColor') || 'transparent',
            lineWidth: labelModel.get('borderWidth') || 0,
            shadowBlur: labelModel.get('shadowBlur'),
            shadowColor: labelModel.get('shadowColor'),
            shadowOffsetX: labelModel.get('shadowOffsetX'),
            shadowOffsetY: labelModel.get('shadowOffsetY')
        },
        // Lable should be over axisPointer.
        z2: 10
    };
}

// Do not overflow ec container
function confineInContainer(position, width, height, api) {
    var viewWidth = api.getWidth();
    var viewHeight = api.getHeight();
    position[0] = Math.min(position[0] + width, viewWidth) - width;
    position[1] = Math.min(position[1] + height, viewHeight) - height;
    position[0] = Math.max(position[0], 0);
    position[1] = Math.max(position[1], 0);
}

/**
 * @param {number} value
 * @param {module:echarts/coord/Axis} axis
 * @param {module:echarts/model/Global} ecModel
 * @param {Object} opt
 * @param {Array.<Object>} seriesDataIndices
 * @param {number|string} opt.precision 'auto' or a number
 * @param {string|Function} opt.formatter label formatter
 */
function getValueLabel(value, axis, ecModel, seriesDataIndices, opt) {
    var text = axis.scale.getLabel(
        // If `precision` is set, width can be fixed (like '12.00500'), which
        // helps to debounce when when moving label.
        value, {precision: opt.precision}
    );
    var formatter = opt.formatter;

    if (formatter) {
        var params = {
            value: getAxisRawValue(axis, value),
            seriesData: []
        };
        each$1(seriesDataIndices, function (idxItem) {
            var series = ecModel.getSeriesByIndex(idxItem.seriesIndex);
            var dataIndex = idxItem.dataIndexInside;
            var dataParams = series && series.getDataParams(dataIndex);
            dataParams && params.seriesData.push(dataParams);
        });

        if (isString(formatter)) {
            text = formatter.replace('{value}', text);
        }
        else if (isFunction$1(formatter)) {
            text = formatter(params);
        }
    }

    return text;
}

/**
 * @param {module:echarts/coord/Axis} axis
 * @param {number} value
 * @param {Object} layoutInfo {
 *  rotation, position, labelOffset, labelDirection, labelMargin
 * }
 */
function getTransformedPosition (axis, value, layoutInfo) {
    var transform = create$1();
    rotate(transform, transform, layoutInfo.rotation);
    translate(transform, transform, layoutInfo.position);

    return applyTransform$1([
        axis.dataToCoord(value),
        (layoutInfo.labelOffset || 0)
            + (layoutInfo.labelDirection || 1) * (layoutInfo.labelMargin || 0)
    ], transform);
}

function buildCartesianSingleLabelElOption(
    value, elOption, layoutInfo, axisModel, axisPointerModel, api
) {
    var textLayout = AxisBuilder.innerTextLayout(
        layoutInfo.rotation, 0, layoutInfo.labelDirection
    );
    layoutInfo.labelMargin = axisPointerModel.get('label.margin');
    buildLabelElOption(elOption, axisModel, axisPointerModel, api, {
        position: getTransformedPosition(axisModel.axis, value, layoutInfo),
        align: textLayout.textAlign,
        verticalAlign: textLayout.textVerticalAlign
    });
}

/**
 * @param {Array.<number>} p1
 * @param {Array.<number>} p2
 * @param {number} [xDimIndex=0] or 1
 */
function makeLineShape(p1, p2, xDimIndex) {
    xDimIndex = xDimIndex || 0;
    return {
        x1: p1[xDimIndex],
        y1: p1[1 - xDimIndex],
        x2: p2[xDimIndex],
        y2: p2[1 - xDimIndex]
    };
}

/**
 * @param {Array.<number>} xy
 * @param {Array.<number>} wh
 * @param {number} [xDimIndex=0] or 1
 */
function makeRectShape(xy, wh, xDimIndex) {
    xDimIndex = xDimIndex || 0;
    return {
        x: xy[xDimIndex],
        y: xy[1 - xDimIndex],
        width: wh[xDimIndex],
        height: wh[1 - xDimIndex]
    };
}

function makeSectorShape(cx, cy, r0, r, startAngle, endAngle) {
    return {
        cx: cx,
        cy: cy,
        r0: r0,
        r: r,
        startAngle: startAngle,
        endAngle: endAngle,
        clockwise: true
    };
}

var CartesianAxisPointer = BaseAxisPointer.extend({

    /**
     * @override
     */
    makeElOption: function (elOption, value, axisModel, axisPointerModel, api) {
        var axis = axisModel.axis;
        var grid = axis.grid;
        var axisPointerType = axisPointerModel.get('type');
        var otherExtent = getCartesian(grid, axis).getOtherAxis(axis).getGlobalExtent();
        var pixelValue = axis.toGlobalCoord(axis.dataToCoord(value, true));

        if (axisPointerType && axisPointerType !== 'none') {
            var elStyle = buildElStyle(axisPointerModel);
            var pointerOption = pointerShapeBuilder[axisPointerType](
                axis, pixelValue, otherExtent, elStyle
            );
            pointerOption.style = elStyle;
            elOption.graphicKey = pointerOption.type;
            elOption.pointer = pointerOption;
        }

        var layoutInfo = layout$1(grid.model, axisModel);
        buildCartesianSingleLabelElOption(
            value, elOption, layoutInfo, axisModel, axisPointerModel, api
        );
    },

    /**
     * @override
     */
    getHandleTransform: function (value, axisModel, axisPointerModel) {
        var layoutInfo = layout$1(axisModel.axis.grid.model, axisModel, {
            labelInside: false
        });
        layoutInfo.labelMargin = axisPointerModel.get('handle.margin');
        return {
            position: getTransformedPosition(axisModel.axis, value, layoutInfo),
            rotation: layoutInfo.rotation + (layoutInfo.labelDirection < 0 ? Math.PI : 0)
        };
    },

    /**
     * @override
     */
    updateHandleTransform: function (transform, delta, axisModel, axisPointerModel) {
        var axis = axisModel.axis;
        var grid = axis.grid;
        var axisExtent = axis.getGlobalExtent(true);
        var otherExtent = getCartesian(grid, axis).getOtherAxis(axis).getGlobalExtent();
        var dimIndex = axis.dim === 'x' ? 0 : 1;

        var currPosition = transform.position;
        currPosition[dimIndex] += delta[dimIndex];
        currPosition[dimIndex] = Math.min(axisExtent[1], currPosition[dimIndex]);
        currPosition[dimIndex] = Math.max(axisExtent[0], currPosition[dimIndex]);

        var cursorOtherValue = (otherExtent[1] + otherExtent[0]) / 2;
        var cursorPoint = [cursorOtherValue, cursorOtherValue];
        cursorPoint[dimIndex] = currPosition[dimIndex];

        // Make tooltip do not overlap axisPointer and in the middle of the grid.
        var tooltipOptions = [{verticalAlign: 'middle'}, {align: 'center'}];

        return {
            position: currPosition,
            rotation: transform.rotation,
            cursorPoint: cursorPoint,
            tooltipOption: tooltipOptions[dimIndex]
        };
    }

});

function getCartesian(grid, axis) {
    var opt = {};
    opt[axis.dim + 'AxisIndex'] = axis.index;
    return grid.getCartesian(opt);
}

var pointerShapeBuilder = {

    line: function (axis, pixelValue, otherExtent, elStyle) {
        var targetShape = makeLineShape(
            [pixelValue, otherExtent[0]],
            [pixelValue, otherExtent[1]],
            getAxisDimIndex(axis)
        );
        subPixelOptimizeLine({
            shape: targetShape,
            style: elStyle
        });
        return {
            type: 'Line',
            shape: targetShape
        };
    },

    shadow: function (axis, pixelValue, otherExtent, elStyle) {
        var bandWidth = axis.getBandWidth();
        var span = otherExtent[1] - otherExtent[0];
        return {
            type: 'Rect',
            shape: makeRectShape(
                [pixelValue - bandWidth / 2, otherExtent[0]],
                [bandWidth, span],
                getAxisDimIndex(axis)
            )
        };
    }
};

function getAxisDimIndex(axis) {
    return axis.dim === 'x' ? 0 : 1;
}

AxisView.registerAxisPointerClass('CartesianAxisPointer', CartesianAxisPointer);

// CartesianAxisPointer is not supposed to be required here. But consider
// echarts.simple.js and online build tooltip, which only require gridSimple,
// CartesianAxisPointer should be able to required somewhere.
registerPreprocessor(function (option) {
    // Always has a global axisPointerModel for default setting.
    if (option) {
        (!option.axisPointer || option.axisPointer.length === 0)
            && (option.axisPointer = {});

        var link = option.axisPointer.link;
        // Normalize to array to avoid object mergin. But if link
        // is not set, remain null/undefined, otherwise it will
        // override existent link setting.
        if (link && !isArray(link)) {
            option.axisPointer.link = [link];
        }
    }
});

// This process should proformed after coordinate systems created
// and series data processed. So put it on statistic processing stage.
registerProcessor(PRIORITY.PROCESSOR.STATISTIC, function (ecModel, api) {
    // Build axisPointerModel, mergin tooltip.axisPointer model for each axis.
    // allAxesInfo should be updated when setOption performed.
    ecModel.getComponent('axisPointer').coordSysAxesInfo
        = collect(ecModel, api);
});

// Broadcast to all views.
registerAction({
    type: 'updateAxisPointer',
    event: 'updateAxisPointer',
    update: ':updateAxisPointer'
}, axisTrigger);

var XY = ['x', 'y'];
var WH = ['width', 'height'];

var SingleAxisPointer = BaseAxisPointer.extend({

    /**
     * @override
     */
    makeElOption: function (elOption, value, axisModel, axisPointerModel, api) {
        var axis = axisModel.axis;
        var coordSys = axis.coordinateSystem;
        var otherExtent = getGlobalExtent(coordSys, 1 - getPointDimIndex(axis));
        var pixelValue = coordSys.dataToPoint(value)[0];

        var axisPointerType = axisPointerModel.get('type');
        if (axisPointerType && axisPointerType !== 'none') {
            var elStyle = buildElStyle(axisPointerModel);
            var pointerOption = pointerShapeBuilder$1[axisPointerType](
                axis, pixelValue, otherExtent, elStyle
            );
            pointerOption.style = elStyle;

            elOption.graphicKey = pointerOption.type;
            elOption.pointer = pointerOption;
        }

        var layoutInfo = layout$2(axisModel);
        buildCartesianSingleLabelElOption(
            value, elOption, layoutInfo, axisModel, axisPointerModel, api
        );
    },

    /**
     * @override
     */
    getHandleTransform: function (value, axisModel, axisPointerModel) {
        var layoutInfo = layout$2(axisModel, {labelInside: false});
        layoutInfo.labelMargin = axisPointerModel.get('handle.margin');
        return {
            position: getTransformedPosition(axisModel.axis, value, layoutInfo),
            rotation: layoutInfo.rotation + (layoutInfo.labelDirection < 0 ? Math.PI : 0)
        };
    },

    /**
     * @override
     */
    updateHandleTransform: function (transform, delta, axisModel, axisPointerModel) {
        var axis = axisModel.axis;
        var coordSys = axis.coordinateSystem;
        var dimIndex = getPointDimIndex(axis);
        var axisExtent = getGlobalExtent(coordSys, dimIndex);
        var currPosition = transform.position;
        currPosition[dimIndex] += delta[dimIndex];
        currPosition[dimIndex] = Math.min(axisExtent[1], currPosition[dimIndex]);
        currPosition[dimIndex] = Math.max(axisExtent[0], currPosition[dimIndex]);
        var otherExtent = getGlobalExtent(coordSys, 1 - dimIndex);
        var cursorOtherValue = (otherExtent[1] + otherExtent[0]) / 2;
        var cursorPoint = [cursorOtherValue, cursorOtherValue];
        cursorPoint[dimIndex] = currPosition[dimIndex];

        return {
            position: currPosition,
            rotation: transform.rotation,
            cursorPoint: cursorPoint,
            tooltipOption: {
                verticalAlign: 'middle'
            }
        };
    }
});

var pointerShapeBuilder$1 = {

    line: function (axis, pixelValue, otherExtent, elStyle) {
        var targetShape = makeLineShape(
            [pixelValue, otherExtent[0]],
            [pixelValue, otherExtent[1]],
            getPointDimIndex(axis)
        );
        subPixelOptimizeLine({
            shape: targetShape,
            style: elStyle
        });
        return {
            type: 'Line',
            shape: targetShape
        };
    },

    shadow: function (axis, pixelValue, otherExtent, elStyle) {
        var bandWidth = axis.getBandWidth();
        var span = otherExtent[1] - otherExtent[0];
        return {
            type: 'Rect',
            shape: makeRectShape(
                [pixelValue - bandWidth / 2, otherExtent[0]],
                [bandWidth, span],
                getPointDimIndex(axis)
            )
        };
    }
};

function getPointDimIndex(axis) {
    return axis.isHorizontal() ? 0 : 1;
}

function getGlobalExtent(coordSys, dimIndex) {
    var rect = coordSys.getRect();
    return [rect[XY[dimIndex]], rect[XY[dimIndex]] + rect[WH[dimIndex]]];
}

AxisView.registerAxisPointerClass('SingleAxisPointer', SingleAxisPointer);

extendComponentView({
    type: 'single'
});

/**
 * @file  Define the themeRiver view's series model
 * @author Deqing Li(annong035@gmail.com)
 */

var DATA_NAME_INDEX = 2;

var ThemeRiverSeries = SeriesModel.extend({

    type: 'series.themeRiver',

    dependencies: ['singleAxis'],

    /**
     * @readOnly
     * @type {module:zrender/core/util#HashMap}
     */
    nameMap: null,

    /**
     * @override
     */
    init: function (option) {
        ThemeRiverSeries.superApply(this, 'init', arguments);

        // Put this function here is for the sake of consistency of code style.
        // Enable legend selection for each data item
        // Use a function instead of direct access because data reference may changed
        this.legendDataProvider = function () {
            return this.getRawData();
        };
    },

    /**
     * If there is no value of a certain point in the time for some event,set it value to 0.
     *
     * @param {Array} data  initial data in the option
     * @return {Array}
     */
    fixData: function (data) {
        var rawDataLength = data.length;

        // grouped data by name
        var dataByName = nest()
            .key(function (dataItem) {
                return dataItem[2];
            })
            .entries(data);

        // data group in each layer
        var layData = map(dataByName, function (d) {
            return {
                name: d.key,
                dataList: d.values
            };
        });

        var layerNum = layData.length;
        var largestLayer = -1;
        var index = -1;
        for (var i = 0; i < layerNum; ++i) {
            var len = layData[i].dataList.length;
            if (len > largestLayer) {
                largestLayer = len;
                index = i;
            }
        }

        for (var k = 0; k < layerNum; ++k) {
            if (k === index) {
                continue;
            }
            var name = layData[k].name;
            for (var j = 0; j < largestLayer; ++j) {
                var timeValue = layData[index].dataList[j][0];
                var length = layData[k].dataList.length;
                var keyIndex = -1;
                for (var l = 0; l < length; ++l) {
                    var value = layData[k].dataList[l][0];
                    if (value === timeValue) {
                        keyIndex = l;
                        break;
                    }
                }
                if (keyIndex === -1) {
                    data[rawDataLength] = [];
                    data[rawDataLength][0] = timeValue;
                    data[rawDataLength][1] = 0;
                    data[rawDataLength][2] = name;
                    rawDataLength++;

                }
            }
        }
        return data;
    },

    /**
     * @override
     * @param  {Object} option  the initial option that user gived
     * @param  {module:echarts/model/Model} ecModel  the model object for themeRiver option
     * @return {module:echarts/data/List}
     */
    getInitialData: function (option, ecModel) {

        var singleAxisModel = ecModel.queryComponents({
            mainType: 'singleAxis',
            index: this.get('singleAxisIndex'),
            id: this.get('singleAxisId')
        })[0];

        var axisType = singleAxisModel.get('type');

        // filter the data item with the value of label is undefined
        var filterData = filter(option.data, function (dataItem) {
            return dataItem[2] !== undefined;
        });

        // ??? TODO design a stage to transfer data for themeRiver and lines?
        var data = this.fixData(filterData || []);
        var nameList = [];
        var nameMap = this.nameMap = createHashMap();
        var count = 0;

        for (var i = 0; i < data.length; ++i) {
            nameList.push(data[i][DATA_NAME_INDEX]);
            if (!nameMap.get(data[i][DATA_NAME_INDEX])) {
                nameMap.set(data[i][DATA_NAME_INDEX], count);
                count++;
            }
        }

        var dimensionsInfo = createDimensions(data, {
            coordDimensions: ['single'],
            dimensionsDefine: [
                {
                    name: 'time',
                    type: getDimensionTypeByAxis(axisType)
                },
                {
                    name: 'value',
                    type: 'float'
                },
                {
                    name: 'name',
                    type: 'ordinal'
                }
            ],
            encodeDefine: {
                single: 0,
                value: 1,
                itemName: 2
            }
        });

        var list = new List(dimensionsInfo, this);
        list.initData(data);

        return list;
    },

    /**
     * The raw data is divided into multiple layers and each layer
     *     has same name.
     *
     * @return {Array.<Array.<number>>}
     */
    getLayerSeries: function () {
        var data = this.getData();
        var lenCount = data.count();
        var indexArr = [];

        for (var i = 0; i < lenCount; ++i) {
            indexArr[i] = i;
        }
        // data group by name
        var dataByName = nest()
            .key(function (index) {
                return data.get('name', index);
            })
            .entries(indexArr);

        var layerSeries = map(dataByName, function (d) {
            return {
                name: d.key,
                indices: d.values
            };
        });

        var timeDim = data.mapDimension('single');

        for (var j = 0; j < layerSeries.length; ++j) {
            layerSeries[j].indices.sort(comparer);
        }

        function comparer(index1, index2) {
            return data.get(timeDim, index1) - data.get(timeDim, index2);
        }

        return layerSeries;
    },

    /**
     * Get data indices for show tooltip content
     *
     * @param {Array.<string>|string} dim  single coordinate dimension
     * @param {number} value axis value
     * @param {module:echarts/coord/single/SingleAxis} baseAxis  single Axis used
     *     the themeRiver.
     * @return {Object} {dataIndices, nestestValue}
     */
    getAxisTooltipData: function (dim, value, baseAxis) {
        if (!isArray(dim)) {
            dim = dim ? [dim] : [];
        }

        var data = this.getData();
        var layerSeries = this.getLayerSeries();
        var indices = [];
        var layerNum = layerSeries.length;
        var nestestValue;

        for (var i = 0; i < layerNum; ++i) {
            var minDist = Number.MAX_VALUE;
            var nearestIdx = -1;
            var pointNum = layerSeries[i].indices.length;
            for (var j = 0; j < pointNum; ++j) {
                var theValue = data.get(dim[0], layerSeries[i].indices[j]);
                var dist = Math.abs(theValue - value);
                if (dist <= minDist) {
                    nestestValue = theValue;
                    minDist = dist;
                    nearestIdx = layerSeries[i].indices[j];
                }
            }
            indices.push(nearestIdx);
        }

        return {dataIndices: indices, nestestValue: nestestValue};
    },

    /**
     * @override
     * @param {number} dataIndex  index of data
     */
    formatTooltip: function (dataIndex) {
        var data = this.getData();
        var htmlName = data.getName(dataIndex);
        var htmlValue = data.get(data.mapDimension('value'), dataIndex);
        if (isNaN(htmlValue) || htmlValue == null) {
            htmlValue = '-';
        }
        return encodeHTML(htmlName + ' : ' + htmlValue);
    },

    defaultOption: {
        zlevel: 0,
        z: 2,

        coordinateSystem: 'singleAxis',

        // gap in axis's orthogonal orientation
        boundaryGap: ['10%', '10%'],

        // legendHoverLink: true,

        singleAxisIndex: 0,

        animationEasing: 'linear',

        label: {
            margin: 4,
            textAlign: 'right',
            show: true,
            position: 'left',
            color: '#000',
            fontSize: 11
        },

        emphasis: {
            label: {
                show: true
            }
        }
    }
});

/**
 * @file  The file used to draw themeRiver view
 * @author  Deqing Li(annong035@gmail.com)
 */

extendChartView({

    type: 'themeRiver',

    init: function () {
        this._layers = [];
    },

    render: function (seriesModel, ecModel, api) {
        var data = seriesModel.getData();

        var group = this.group;

        var layerSeries = seriesModel.getLayerSeries();

        var layoutInfo = data.getLayout('layoutInfo');
        var rect = layoutInfo.rect;
        var boundaryGap = layoutInfo.boundaryGap;

        group.attr('position', [0, rect.y + boundaryGap[0]]);

        function keyGetter(item) {
            return item.name;
        }
        var dataDiffer = new DataDiffer(
            this._layersSeries || [], layerSeries,
            keyGetter, keyGetter
        );

        var newLayersGroups = {};

        dataDiffer
            .add(bind(process, this, 'add'))
            .update(bind(process, this, 'update'))
            .remove(bind(process, this, 'remove'))
            .execute();

        function process(status, idx, oldIdx) {
            var oldLayersGroups = this._layers;
            if (status === 'remove') {
                group.remove(oldLayersGroups[idx]);
                return;
            }
            var points0 = [];
            var points1 = [];
            var color;
            var indices = layerSeries[idx].indices;
            for (var j = 0; j < indices.length; j++) {
                var layout = data.getItemLayout(indices[j]);
                var x = layout.x;
                var y0 = layout.y0;
                var y = layout.y;

                points0.push([x, y0]);
                points1.push([x, y0 + y]);

                color = data.getItemVisual(indices[j], 'color');
            }

            var polygon;
            var text;
            var textLayout = data.getItemLayout(indices[0]);
            var itemModel = data.getItemModel(indices[j - 1]);
            var labelModel = itemModel.getModel('label');
            var margin = labelModel.get('margin');
            if (status === 'add') {
                var layerGroup = newLayersGroups[idx] = new Group();
                polygon = new Polygon$1({
                    shape: {
                        points: points0,
                        stackedOnPoints: points1,
                        smooth: 0.4,
                        stackedOnSmooth: 0.4,
                        smoothConstraint: false
                    },
                    z2: 0
                });
                text = new Text({
                    style: {
                        x: textLayout.x - margin,
                        y: textLayout.y0 + textLayout.y / 2
                    }
                });
                layerGroup.add(polygon);
                layerGroup.add(text);
                group.add(layerGroup);

                polygon.setClipPath(createGridClipShape$3(polygon.getBoundingRect(), seriesModel, function () {
                    polygon.removeClipPath();
                }));
            }
            else {
                var layerGroup = oldLayersGroups[oldIdx];
                polygon = layerGroup.childAt(0);
                text = layerGroup.childAt(1);
                group.add(layerGroup);

                newLayersGroups[idx] = layerGroup;

                updateProps(polygon, {
                    shape: {
                        points: points0,
                        stackedOnPoints: points1
                    }
                }, seriesModel);

                updateProps(text, {
                    style: {
                        x: textLayout.x - margin,
                        y: textLayout.y0 + textLayout.y / 2
                    }
                }, seriesModel);
            }

            var hoverItemStyleModel = itemModel.getModel('emphasis.itemStyle');
            var itemStyleModel = itemModel.getModel('itemStyle');

            setTextStyle(text.style, labelModel, {
                text: labelModel.get('show')
                    ? seriesModel.getFormattedLabel(indices[j - 1], 'normal')
                        || data.getName(indices[j - 1])
                    : null,
                textVerticalAlign: 'middle'
            });

            polygon.setStyle(extend({
                fill: color
            }, itemStyleModel.getItemStyle(['color'])));

            setHoverStyle(polygon, hoverItemStyleModel.getItemStyle());
        }

        this._layersSeries = layerSeries;
        this._layers = newLayersGroups;
    },

    dispose: function () {}
});

// add animation to the view
function createGridClipShape$3(rect, seriesModel, cb) {
    var rectEl = new Rect({
        shape: {
            x: rect.x - 10,
            y: rect.y - 10,
            width: 0,
            height: rect.height + 20
        }
    });
    initProps(rectEl, {
        shape: {
            width: rect.width + 20,
            height: rect.height + 20
        }
    }, seriesModel, cb);

    return rectEl;
}

/**
 * @file  Using layout algorithm transform the raw data to layout information.
 * @author Deqing Li(annong035@gmail.com)
 */

var themeRiverLayout = function (ecModel, api) {

    ecModel.eachSeriesByType('themeRiver', function (seriesModel) {

        var data = seriesModel.getData();

        var single = seriesModel.coordinateSystem;

        var layoutInfo = {};

        // use the axis boundingRect for view
        var rect = single.getRect();

        layoutInfo.rect = rect;

        var boundaryGap = seriesModel.get('boundaryGap');

        var axis = single.getAxis();

        layoutInfo.boundaryGap = boundaryGap;

        if (axis.orient === 'horizontal') {
            boundaryGap[0] = parsePercent$1(boundaryGap[0], rect.height);
            boundaryGap[1] = parsePercent$1(boundaryGap[1], rect.height);
            var height = rect.height - boundaryGap[0] - boundaryGap[1];
            themeRiverLayout$1(data, seriesModel, height);
        }
        else {
            boundaryGap[0] = parsePercent$1(boundaryGap[0], rect.width);
            boundaryGap[1] = parsePercent$1(boundaryGap[1], rect.width);
            var width = rect.width - boundaryGap[0] - boundaryGap[1];
            themeRiverLayout$1(data, seriesModel, width);
        }

        data.setLayout('layoutInfo', layoutInfo);
    });
};

/**
 * The layout information about themeriver
 *
 * @param {module:echarts/data/List} data  data in the series
 * @param {module:echarts/model/Series} seriesModel  the model object of themeRiver series
 * @param {number} height  value used to compute every series height
 */
function themeRiverLayout$1(data, seriesModel, height) {
    if (!data.count()) {
        return;
    }
    var coordSys = seriesModel.coordinateSystem;
    // the data in each layer are organized into a series.
    var layerSeries = seriesModel.getLayerSeries();

    // the points in each layer.
    var timeDim = data.mapDimension('single');
    var valueDim = data.mapDimension('value');
    var layerPoints = map(layerSeries, function (singleLayer) {
        return map(singleLayer.indices, function (idx) {
            var pt = coordSys.dataToPoint(data.get(timeDim, idx));
            pt[1] = data.get(valueDim, idx);
            return pt;
        });
    });

    var base = computeBaseline(layerPoints);
    var baseLine = base.y0;
    var ky = height / base.max;

    // set layout information for each item.
    var n = layerSeries.length;
    var m = layerSeries[0].indices.length;
    var baseY0;
    for (var j = 0; j < m; ++j) {
        baseY0 = baseLine[j] * ky;
        data.setItemLayout(layerSeries[0].indices[j], {
            layerIndex: 0,
            x: layerPoints[0][j][0],
            y0: baseY0,
            y: layerPoints[0][j][1] * ky
        });
        for (var i = 1; i < n; ++i) {
            baseY0 += layerPoints[i - 1][j][1] * ky;
            data.setItemLayout(layerSeries[i].indices[j], {
                layerIndex: i,
                x: layerPoints[i][j][0],
                y0: baseY0,
                y: layerPoints[i][j][1] * ky
            });
        }
    }
}

/**
 * Compute the baseLine of the rawdata
 * Inspired by Lee Byron's paper Stacked Graphs - Geometry & Aesthetics
 *
 * @param  {Array.<Array>} data  the points in each layer
 * @return {Object}
 */
function computeBaseline(data) {
    var layerNum = data.length;
    var pointNum = data[0].length;
    var sums = [];
    var y0 = [];
    var max = 0;
    var temp;
    var base = {};

    for (var i = 0; i < pointNum; ++i) {
        for (var j = 0, temp = 0; j < layerNum; ++j) {
            temp += data[j][i][1];
        }
        if (temp > max) {
            max = temp;
        }
        sums.push(temp);
    }

    for (var k = 0; k < pointNum; ++k) {
        y0[k] = (max - sums[k]) / 2;
    }
    max = 0;

    for (var l = 0; l < pointNum; ++l) {
        var sum = sums[l] + y0[l];
        if (sum > max) {
            max = sum;
        }
    }
    base.y0 = y0;
    base.max = max;

    return base;
}

/**
 * @file Visual encoding for themeRiver view
 * @author  Deqing Li(annong035@gmail.com)
 */

var themeRiverVisual = function (ecModel) {
    ecModel.eachSeriesByType('themeRiver', function (seriesModel) {
        var data = seriesModel.getData();
        var rawData = seriesModel.getRawData();
        var colorList = seriesModel.get('color');
        var idxMap = createHashMap();

        data.each(function (idx) {
            idxMap.set(data.getRawIndex(idx), idx);
        });

        rawData.each(function (rawIndex) {
            var name = rawData.getName(rawIndex);
            var color = colorList[(seriesModel.nameMap.get(name) - 1) % colorList.length];

            rawData.setItemVisual(rawIndex, 'color', color);

            var idx = idxMap.get(rawIndex);

            if (idx != null) {
                data.setItemVisual(idx, 'color', color);
            }
        });
    });
};

registerLayout(themeRiverLayout);
registerVisual(themeRiverVisual);
registerProcessor(dataFilter('themeRiver'));

SeriesModel.extend({

    type: 'series.sunburst',

    /**
     * @type {module:echarts/data/Tree~Node}
     */
    _viewRoot: null,

    getInitialData: function (option, ecModel) {
        // Create a virtual root.
        var root = { name: option.name, children: option.data };

        completeTreeValue$1(root);

        var levels = option.levels || [];

        // levels = option.levels = setDefault(levels, ecModel);

        var treeOption = {};

        treeOption.levels = levels;

        // Make sure always a new tree is created when setOption,
        // in TreemapView, we check whether oldTree === newTree
        // to choose mappings approach among old shapes and new shapes.
        return Tree.createTree(root, this, treeOption).data;
    },

    optionUpdated: function () {
        this.resetViewRoot();
    },

    /*
     * @override
     */
    getDataParams: function (dataIndex) {
        var params = SeriesModel.prototype.getDataParams.apply(this, arguments);

        var node = this.getData().tree.getNodeByDataIndex(dataIndex);
        params.treePathInfo = wrapTreePathInfo(node, this);

        return params;
    },

    defaultOption: {
        zlevel: 0,
        z: 2,

        // 默认全局居中
        center: ['50%', '50%'],
        radius: [0, '75%'],
        // 默认顺时针
        clockwise: true,
        startAngle: 90,
        // 最小角度改为0
        minAngle: 0,

        percentPrecision: 2,

        // If still show when all data zero.
        stillShowZeroSum: true,

        // Policy of highlighting pieces when hover on one
        // Valid values: 'none' (for not downplay others), 'descendant',
        // 'ancestor', 'self'
        highlightPolicy: 'descendant',

        // 'rootToNode', 'link', or false
        nodeClick: 'rootToNode',

        renderLabelForZeroData: false,

        label: {
            // could be: 'radial', 'tangential', or 'none'
            rotate: 'radial',
            show: true,
            opacity: 1,
            // 'left' is for inner side of inside, and 'right' is for outter
            // side for inside
            align: 'center',
            position: 'inside',
            distance: 5,
            silent: true,
            emphasis: {}
        },
        itemStyle: {
            borderWidth: 1,
            borderColor: 'white',
            opacity: 1,
            emphasis: {},
            highlight: {
                opacity: 1
            },
            downplay: {
                opacity: 0.9
            }
        },

        // Animation type canbe expansion, scale
        animationType: 'expansion',
        animationDuration: 1000,
        animationDurationUpdate: 500,
        animationEasing: 'cubicOut',

        data: [],

        levels: [],

        /**
         * Sort order.
         *
         * Valid values: 'desc', 'asc', null, or callback function.
         * 'desc' and 'asc' for descend and ascendant order;
         * null for not sorting;
         * example of callback function:
         * function(nodeA, nodeB) {
         *     return nodeA.getValue() - nodeB.getValue();
         * }
         */
        sort: 'desc'
    },

    getViewRoot: function () {
        return this._viewRoot;
    },

    /**
     * @param {module:echarts/data/Tree~Node} [viewRoot]
     */
    resetViewRoot: function (viewRoot) {
        viewRoot
            ? (this._viewRoot = viewRoot)
            : (viewRoot = this._viewRoot);

        var root = this.getRawData().tree.root;

        if (!viewRoot
            || (viewRoot !== root && !root.contains(viewRoot))
        ) {
            this._viewRoot = root;
        }
    }
});



/**
 * @param {Object} dataNode
 */
function completeTreeValue$1(dataNode) {
    // Postorder travel tree.
    // If value of none-leaf node is not set,
    // calculate it by suming up the value of all children.
    var sum = 0;

    each$1(dataNode.children, function (child) {

        completeTreeValue$1(child);

        var childValue = child.value;
        isArray(childValue) && (childValue = childValue[0]);

        sum += childValue;
    });

    var thisValue = dataNode.value;
    if (isArray(thisValue)) {
        thisValue = thisValue[0];
    }

    if (thisValue == null || isNaN(thisValue)) {
        thisValue = sum;
    }
    // Value should not less than 0.
    if (thisValue < 0) {
        thisValue = 0;
    }

    isArray(dataNode.value)
        ? (dataNode.value[0] = thisValue)
        : (dataNode.value = thisValue);
}

var NodeHighlightPolicy = {
    NONE: 'none', // not downplay others
    DESCENDANT: 'descendant',
    ANCESTOR: 'ancestor',
    SELF: 'self'
};

var DEFAULT_SECTOR_Z = 2;
var DEFAULT_TEXT_Z = 4;

/**
 * Sunburstce of Sunburst including Sector, Label, LabelLine
 * @constructor
 * @extends {module:zrender/graphic/Group}
 */
function SunburstPiece(node, seriesModel, ecModel) {

    Group.call(this);

    var sector = new Sector({
        z2: DEFAULT_SECTOR_Z
    });
    var text = new Text({
        z2: DEFAULT_TEXT_Z,
        silent: node.getModel('label').get('silent')
    });
    this.add(sector);
    this.add(text);

    this.updateData(true, node, 'normal', seriesModel, ecModel);

    // Hover to change label and labelLine
    function onEmphasis() {
        text.ignore = text.hoverIgnore;
    }
    function onNormal() {
        text.ignore = text.normalIgnore;
    }
    this.on('emphasis', onEmphasis)
        .on('normal', onNormal)
        .on('mouseover', onEmphasis)
        .on('mouseout', onNormal);
}

var SunburstPieceProto = SunburstPiece.prototype;

SunburstPieceProto.updateData = function (
    firstCreate,
    node,
    state,
    seriesModel,
    ecModel
) {
    this.node = node;
    node.piece = this;

    seriesModel = seriesModel || this._seriesModel;
    ecModel = ecModel || this._ecModel;

    var sector = this.childAt(0);
    sector.dataIndex = node.dataIndex;

    var itemModel = node.getModel();
    var layout = node.getLayout();
    var sectorShape = extend({}, layout);
    sectorShape.label = null;

    var visualColor = getNodeColor(node, seriesModel, ecModel);

    var normalStyle = itemModel.getModel('itemStyle').getItemStyle();
    var style;
    if (state === 'normal') {
        style = normalStyle;
    }
    else {
        var stateStyle = itemModel.getModel(state + '.itemStyle')
            .getItemStyle();
        style = merge(stateStyle, normalStyle);
    }
    style = defaults(
        {
            lineJoin: 'bevel',
            fill: style.fill || visualColor
        },
        style
    );

    if (firstCreate) {
        sector.setShape(sectorShape);
        sector.shape.r = layout.r0;
        updateProps(
            sector,
            {
                shape: {
                    r: layout.r
                }
            },
            seriesModel,
            node.dataIndex
        );
        sector.useStyle(style);
    }
    else if (typeof style.fill === 'object' && style.fill.type
        || typeof sector.style.fill === 'object' && sector.style.fill.type
    ) {
        // Disable animation for gradient since no interpolation method
        // is supported for gradient
        updateProps(sector, {
            shape: sectorShape
        }, seriesModel);
        sector.useStyle(style);
    }
    else {
        updateProps(sector, {
            shape: sectorShape,
            style: style
        }, seriesModel);
    }

    this._updateLabel(seriesModel, visualColor, state);

    var cursorStyle = itemModel.getShallow('cursor');
    cursorStyle && sector.attr('cursor', cursorStyle);

    if (firstCreate) {
        var highlightPolicy = seriesModel.getShallow('highlightPolicy');
        this._initEvents(sector, node, seriesModel, highlightPolicy);
    }

    this._seriesModel = seriesModel || this._seriesModel;
    this._ecModel = ecModel || this._ecModel;
};

SunburstPieceProto.onEmphasis = function (highlightPolicy) {
    var that = this;
    this.node.hostTree.root.eachNode(function (n) {
        if (n.piece) {
            if (that.node === n) {
                n.piece.updateData(false, n, 'emphasis');
            }
            else if (isNodeHighlighted(n, that.node, highlightPolicy)) {
                n.piece.childAt(0).trigger('highlight');
            }
            else if (highlightPolicy !== NodeHighlightPolicy.NONE) {
                n.piece.childAt(0).trigger('downplay');
            }
        }
    });
};

SunburstPieceProto.onNormal = function () {
    this.node.hostTree.root.eachNode(function (n) {
        if (n.piece) {
            n.piece.updateData(false, n, 'normal');
        }
    });
};

SunburstPieceProto.onHighlight = function () {
    this.updateData(false, this.node, 'highlight');
};

SunburstPieceProto.onDownplay = function () {
    this.updateData(false, this.node, 'downplay');
};

SunburstPieceProto._updateLabel = function (seriesModel, visualColor, state) {
    var itemModel = this.node.getModel();
    var normalModel = itemModel.getModel('label');
    var labelModel = state === 'normal' || state === 'emphasis'
        ? normalModel
        : itemModel.getModel(state + '.label');
    var labelHoverModel = itemModel.getModel('emphasis.label');

    var text = retrieve(
        seriesModel.getFormattedLabel(
            this.node.dataIndex, 'normal', null, null, 'label'
        ),
        this.node.name
    );
    if (getLabelAttr('show') === false) {
        text = '';
    }

    var layout = this.node.getLayout();
    var labelMinAngle = labelModel.get('minAngle');
    if (labelMinAngle == null) {
        labelMinAngle = normalModel.get('minAngle');
    }
    labelMinAngle = labelMinAngle / 180 * Math.PI;
    var angle = layout.endAngle - layout.startAngle;
    if (labelMinAngle != null && Math.abs(angle) < labelMinAngle) {
        // Not displaying text when angle is too small
        text = '';
    }

    var label = this.childAt(1);

    setLabelStyle(
        label.style, label.hoverStyle || {}, normalModel, labelHoverModel,
        {
            defaultText: labelModel.getShallow('show') ? text : null,
            autoColor: visualColor,
            useInsideStyle: true
        }
    );

    var midAngle = (layout.startAngle + layout.endAngle) / 2;
    var dx = Math.cos(midAngle);
    var dy = Math.sin(midAngle);

    var r;
    var labelPosition = getLabelAttr('position');
    var labelPadding = getLabelAttr('distance') || 0;
    var textAlign = getLabelAttr('align');
    if (labelPosition === 'outside') {
        r = layout.r + labelPadding;
        textAlign = midAngle > Math.PI / 2 ? 'right' : 'left';
    }
    else {
        if (!textAlign || textAlign === 'center') {
            r = (layout.r + layout.r0) / 2;
            textAlign = 'center';
        }
        else if (textAlign === 'left') {
            r = layout.r0 + labelPadding;
            if (midAngle > Math.PI / 2) {
                textAlign = 'right';
            }
        }
        else if (textAlign === 'right') {
            r = layout.r - labelPadding;
            if (midAngle > Math.PI / 2) {
                textAlign = 'left';
            }
        }
    }

    label.attr('style', {
        text: text,
        textAlign: textAlign,
        textVerticalAlign: getLabelAttr('verticalAlign') || 'middle',
        opacity: getLabelAttr('opacity')
    });

    var textX = r * dx + layout.cx;
    var textY = r * dy + layout.cy;
    label.attr('position', [textX, textY]);

    var rotateType = getLabelAttr('rotate');
    var rotate = 0;
    if (rotateType === 'radial') {
        rotate = -midAngle;
        if (rotate < -Math.PI / 2) {
            rotate += Math.PI;
        }
    }
    else if (rotateType === 'tangential') {
        rotate = Math.PI / 2 - midAngle;
        if (rotate > Math.PI / 2) {
            rotate -= Math.PI;
        }
        else if (rotate < -Math.PI / 2) {
            rotate += Math.PI;
        }
    } else if (typeof rotateType === 'number') {
        rotate = rotateType * Math.PI / 180;
    }
    label.attr('rotation', rotate);

    function getLabelAttr(name) {
        var stateAttr = labelModel.get(name);
        if (stateAttr == null) {
            return normalModel.get(name);
        }
        else {
            return stateAttr;
        }
    }
};

SunburstPieceProto._initEvents = function (
    sector,
    node,
    seriesModel,
    highlightPolicy
) {
    sector.off('mouseover').off('mouseout').off('emphasis').off('normal');

    var that = this;
    var onEmphasis = function () {
        that.onEmphasis(highlightPolicy);
    };
    var onNormal = function () {
        that.onNormal();
    };
    var onDownplay = function () {
        that.onDownplay();
    };
    var onHighlight = function () {
        that.onHighlight();
    };

    if (seriesModel.isAnimationEnabled()) {
        sector
            .on('mouseover', onEmphasis)
            .on('mouseout', onNormal)
            .on('emphasis', onEmphasis)
            .on('normal', onNormal)
            .on('downplay', onDownplay)
            .on('highlight', onHighlight);
    }
};

inherits(SunburstPiece, Group);

/**
 * Get node color
 *
 * @param {TreeNode} node the node to get color
 * @param {module:echarts/model/Series} seriesModel series
 * @param {module:echarts/model/Global} ecModel echarts defaults
 */
function getNodeColor(node, seriesModel, ecModel) {
    // Color from visualMap
    var visualColor = node.getVisual('color');
    var visualMetaList = node.getVisual('visualMeta');
    if (!visualMetaList || visualMetaList.length === 0) {
        // Use first-generation color if has no visualMap
        visualColor = null;
    }

    // Self color or level color
    var color = node.getModel('itemStyle').get('color');
    if (color) {
        return color;
    }
    else if (visualColor) {
        // Color mapping
        return visualColor;
    }
    else if (node.depth === 0) {
        // Virtual root node
        return ecModel.option.color[0];
    }
    else {
        // First-generation color
        var length = ecModel.option.color.length;
        color = ecModel.option.color[getRootId(node) % length];
    }
    return color;
}

/**
 * Get index of root in sorted order
 *
 * @param {TreeNode} node current node
 * @return {number} index in root
 */
function getRootId(node) {
    var ancestor = node;
    while (ancestor.depth > 1) {
        ancestor = ancestor.parentNode;
    }

    var virtualRoot = node.getAncestors()[0];
    return indexOf(virtualRoot.children, ancestor);
}

function isNodeHighlighted(node, activeNode, policy) {
    if (policy === NodeHighlightPolicy.NONE) {
        return false;
    }
    else if (policy === NodeHighlightPolicy.SELF) {
        return node === activeNode;
    }
    else if (policy === NodeHighlightPolicy.ANCESTOR) {
        return node === activeNode || node.isAncestorOf(activeNode);
    }
    else {
        return node === activeNode || node.isDescendantOf(activeNode);
    }
}

var ROOT_TO_NODE_ACTION = 'sunburstRootToNode';

var SunburstView = Chart.extend({

    type: 'sunburst',

    init: function () {
    },

    render: function (seriesModel, ecModel, api, payload) {
        var that = this;

        this.seriesModel = seriesModel;
        this.api = api;
        this.ecModel = ecModel;

        var data = seriesModel.getData();
        var virtualRoot = data.tree.root;

        var newRoot = seriesModel.getViewRoot();

        var group = this.group;

        var renderLabelForZeroData = seriesModel.get('renderLabelForZeroData');

        var newChildren = [];
        newRoot.eachNode(function (node) {
            newChildren.push(node);
        });
        var oldChildren = this._oldChildren || [];

        dualTravel(newChildren, oldChildren);

        renderRollUp(virtualRoot, newRoot);

        if (payload && payload.highlight && payload.highlight.piece) {
            var highlightPolicy = seriesModel.getShallow('highlightPolicy');
            payload.highlight.piece.onEmphasis(highlightPolicy);
        }
        else if (payload && payload.unhighlight) {
            var piece = virtualRoot.piece;
            if (!piece && virtualRoot.children.length) {
                piece = virtualRoot.children[0].piece;
            }
            if (piece) {
                piece.onNormal();
            }
        }

        this._initEvents();

        this._oldChildren = newChildren;

        function dualTravel(newChildren, oldChildren) {
            if (newChildren.length === 0 && oldChildren.length === 0) {
                return;
            }

            new DataDiffer(oldChildren, newChildren, getKey, getKey)
                .add(processNode)
                .update(processNode)
                .remove(curry(processNode, null))
                .execute();

            function getKey(node) {
                return node.getId();
            }

            function processNode(newId, oldId) {
                var newNode = newId == null ? null : newChildren[newId];
                var oldNode = oldId == null ? null : oldChildren[oldId];

                doRenderNode(newNode, oldNode);
            }
        }

        function doRenderNode(newNode, oldNode) {
            if (!renderLabelForZeroData && newNode && !newNode.getValue()) {
                // Not render data with value 0
                newNode = null;
            }

            if (newNode !== virtualRoot && oldNode !== virtualRoot) {
                if (oldNode && oldNode.piece) {
                    if (newNode) {
                        // Update
                        oldNode.piece.updateData(
                            false, newNode, 'normal', seriesModel, ecModel);

                        // For tooltip
                        data.setItemGraphicEl(newNode.dataIndex, oldNode.piece);
                    }
                    else {
                        // Remove
                        removeNode(oldNode);
                    }
                }
                else if (newNode) {
                    // Add
                    var piece = new SunburstPiece(
                        newNode,
                        seriesModel,
                        ecModel
                    );
                    group.add(piece);

                    // For tooltip
                    data.setItemGraphicEl(newNode.dataIndex, piece);
                }
            }
        }

        function removeNode(node) {
            if (!node) {
                return;
            }

            if (node.piece) {
                group.remove(node.piece);
                node.piece = null;
            }
        }

        function renderRollUp(virtualRoot, viewRoot) {
            if (viewRoot.depth > 0) {
                // Render
                if (virtualRoot.piece) {
                    // Update
                    virtualRoot.piece.updateData(
                        false, virtualRoot, 'normal', seriesModel, ecModel);
                }
                else {
                    // Add
                    virtualRoot.piece = new SunburstPiece(
                        virtualRoot,
                        seriesModel,
                        ecModel
                    );
                    group.add(virtualRoot.piece);
                }

                if (viewRoot.piece._onclickEvent) {
                    viewRoot.piece.off('click', viewRoot.piece._onclickEvent);
                }
                var event = function (e) {
                    that._rootToNode(viewRoot.parentNode);
                };
                viewRoot.piece._onclickEvent = event;
                virtualRoot.piece.on('click', event);
            }
            else if (virtualRoot.piece) {
                // Remove
                group.remove(virtualRoot.piece);
                virtualRoot.piece = null;
            }
        }
    },

    dispose: function () {
    },

    /**
     * @private
     */
    _initEvents: function () {
        var that = this;

        var event = function (e) {
            var targetFound = false;
            var viewRoot = that.seriesModel.getViewRoot();
            viewRoot.eachNode(function (node) {
                if (!targetFound
                    && node.piece && node.piece.childAt(0) === e.target
                ) {
                    var nodeClick = node.getModel().get('nodeClick');
                    if (nodeClick === 'rootToNode') {
                        that._rootToNode(node);
                    }
                    else if (nodeClick === 'link') {
                        var itemModel = node.getModel();
                        var link = itemModel.get('link');
                        if (link) {
                            var linkTarget = itemModel.get('target', true)
                                || '_blank';
                            window.open(link, linkTarget);
                        }
                    }
                    targetFound = true;
                }
            });
        };

        if (this.group._onclickEvent) {
            this.group.off('click', this.group._onclickEvent);
        }
        this.group.on('click', event);
        this.group._onclickEvent = event;
    },

    /**
     * @private
     */
    _rootToNode: function (node) {
        if (node !== this.seriesModel.getViewRoot()) {
            this.api.dispatchAction({
                type: ROOT_TO_NODE_ACTION,
                from: this.uid,
                seriesId: this.seriesModel.id,
                targetNode: node
            });
        }
    },

    /**
     * @implement
     */
    containPoint: function (point, seriesModel) {
        var treeRoot = seriesModel.getData();
        var itemLayout = treeRoot.getItemLayout(0);
        if (itemLayout) {
            var dx = point[0] - itemLayout.cx;
            var dy = point[1] - itemLayout.cy;
            var radius = Math.sqrt(dx * dx + dy * dy);
            return radius <= itemLayout.r && radius >= itemLayout.r0;
        }
    }

});

/**
 * @file Sunburst action
 */

var ROOT_TO_NODE_ACTION$1 = 'sunburstRootToNode';

registerAction(
    {type: ROOT_TO_NODE_ACTION$1, update: 'updateView'},
    function (payload, ecModel) {

        ecModel.eachComponent(
            {mainType: 'series', subType: 'sunburst', query: payload},
            handleRootToNode
        );

        function handleRootToNode(model, index) {
            var targetInfo = retrieveTargetInfo(payload, [ROOT_TO_NODE_ACTION$1], model);

            if (targetInfo) {
                var originViewRoot = model.getViewRoot();
                if (originViewRoot) {
                    payload.direction = aboveViewRoot(originViewRoot, targetInfo.node)
                        ? 'rollUp' : 'drillDown';
                }
                model.resetViewRoot(targetInfo.node);
            }
        }
    }
);


var HIGHLIGHT_ACTION = 'sunburstHighlight';

registerAction(
    {type: HIGHLIGHT_ACTION, update: 'updateView'},
    function (payload, ecModel) {

        ecModel.eachComponent(
            {mainType: 'series', subType: 'sunburst', query: payload},
            handleHighlight
        );

        function handleHighlight(model, index) {
            var targetInfo = retrieveTargetInfo(payload, [HIGHLIGHT_ACTION], model);

            if (targetInfo) {
                payload.highlight = targetInfo.node;
            }
        }
    }
);


var UNHIGHLIGHT_ACTION = 'sunburstUnhighlight';

registerAction(
    {type: UNHIGHLIGHT_ACTION, update: 'updateView'},
    function (payload, ecModel) {

        ecModel.eachComponent(
            {mainType: 'series', subType: 'sunburst', query: payload},
            handleUnhighlight
        );

        function handleUnhighlight(model, index) {
            payload.unhighlight = true;
        }
    }
);

var RADIAN$1 = Math.PI / 180;

var sunburstLayout = function (seriesType, ecModel, api, payload) {
    ecModel.eachSeriesByType(seriesType, function (seriesModel) {
        var center = seriesModel.get('center');
        var radius = seriesModel.get('radius');

        if (!isArray(radius)) {
            radius = [0, radius];
        }
        if (!isArray(center)) {
            center = [center, center];
        }

        var width = api.getWidth();
        var height = api.getHeight();
        var size = Math.min(width, height);
        var cx = parsePercent$1(center[0], width);
        var cy = parsePercent$1(center[1], height);
        var r0 = parsePercent$1(radius[0], size / 2);
        var r = parsePercent$1(radius[1], size / 2);

        var startAngle = -seriesModel.get('startAngle') * RADIAN$1;
        var minAngle = seriesModel.get('minAngle') * RADIAN$1;

        var virtualRoot = seriesModel.getData().tree.root;
        var treeRoot = seriesModel.getViewRoot();
        var rootDepth = treeRoot.depth;

        var sort = seriesModel.get('sort');
        if (sort != null) {
            initChildren$1(treeRoot, sort);
        }

        var validDataCount = 0;
        each$1(treeRoot.children, function (child) {
            !isNaN(child.getValue()) && validDataCount++;
        });

        var sum = treeRoot.getValue();
        // Sum may be 0
        var unitRadian = Math.PI / (sum || validDataCount) * 2;

        var renderRollupNode = treeRoot.depth > 0;
        var levels = treeRoot.height - (renderRollupNode ? -1 : 1);
        var rPerLevel = (r - r0) / (levels || 1);

        var clockwise = seriesModel.get('clockwise');

        var stillShowZeroSum = seriesModel.get('stillShowZeroSum');

        // In the case some sector angle is smaller than minAngle
        var dir = clockwise ? 1 : -1;

        /**
         * Render a tree
         * @return increased angle
         */
        var renderNode = function (node, startAngle) {
            if (!node) {
                return;
            }

            var endAngle = startAngle;

            // Render self
            if (node !== virtualRoot) {
                // Tree node is virtual, so it doesn't need to be drawn
                var value = node.getValue();

                var angle = (sum === 0 && stillShowZeroSum)
                    ? unitRadian : (value * unitRadian);
                if (angle < minAngle) {
                    angle = minAngle;
                    
                }
                else {
                    
                }

                endAngle = startAngle + dir * angle;

                var depth = node.depth - rootDepth
                    - (renderRollupNode ? -1 : 1);
                var rStart = r0 + rPerLevel * depth;
                var rEnd = r0 + rPerLevel * (depth + 1);

                var itemModel = node.getModel();
                if (itemModel.get('r0') != null) {
                    rStart = parsePercent$1(itemModel.get('r0'), size / 2);
                }
                if (itemModel.get('r') != null) {
                    rEnd = parsePercent$1(itemModel.get('r'), size / 2);
                }

                node.setLayout({
                    angle: angle,
                    startAngle: startAngle,
                    endAngle: endAngle,
                    clockwise: clockwise,
                    cx: cx,
                    cy: cy,
                    r0: rStart,
                    r: rEnd
                });
            }

            // Render children
            if (node.children && node.children.length) {
                // currentAngle = startAngle;
                var siblingAngle = 0;
                each$1(node.children, function (node) {
                    siblingAngle += renderNode(node, startAngle + siblingAngle);
                });
            }

            return endAngle - startAngle;
        };

        // Virtual root node for roll up
        if (renderRollupNode) {
            var rStart = r0;
            var rEnd = r0 + rPerLevel;

            var angle = Math.PI * 2;
            virtualRoot.setLayout({
                angle: angle,
                startAngle: startAngle,
                endAngle: startAngle + angle,
                clockwise: clockwise,
                cx: cx,
                cy: cy,
                r0: rStart,
                r: rEnd
            });
        }

        renderNode(treeRoot, startAngle);
    });
};

/**
 * Init node children by order and update visual
 *
 * @param {TreeNode} node  root node
 * @param {boolean}  isAsc if is in ascendant order
 */
function initChildren$1(node, isAsc) {
    var children = node.children || [];

    node.children = sort$2(children, isAsc);

    // Init children recursively
    if (children.length) {
        each$1(node.children, function (child) {
            initChildren$1(child, isAsc);
        });
    }
}

/**
 * Sort children nodes
 *
 * @param {TreeNode[]}               children children of node to be sorted
 * @param {string | function | null} sort sort method
 *                                   See SunburstSeries.js for details.
 */
function sort$2(children, sortOrder) {
    if (typeof sortOrder === 'function') {
        return children.sort(sortOrder);
    }
    else {
        var isAsc = sortOrder === 'asc';
        return children.sort(function (a, b) {
            var diff = (a.getValue() - b.getValue()) * (isAsc ? 1 : -1);
            return diff === 0
                ? (a.dataIndex - b.dataIndex) * (isAsc ? -1 : 1)
                : diff;
        });
    }
}

registerVisual(curry(dataColor, 'sunburst'));
registerLayout(curry(sunburstLayout, 'sunburst'));
registerProcessor(curry(dataFilter, 'sunburst'));

function dataToCoordSize(dataSize, dataItem) {
    // dataItem is necessary in log axis.
    dataItem = dataItem || [0, 0];
    return map(['x', 'y'], function (dim, dimIdx) {
        var axis = this.getAxis(dim);
        var val = dataItem[dimIdx];
        var halfSize = dataSize[dimIdx] / 2;
        return axis.type === 'category'
            ? axis.getBandWidth()
            : Math.abs(axis.dataToCoord(val - halfSize) - axis.dataToCoord(val + halfSize));
    }, this);
}

var prepareCartesian2d = function (coordSys) {
    var rect = coordSys.grid.getRect();
    return {
        coordSys: {
            // The name exposed to user is always 'cartesian2d' but not 'grid'.
            type: 'cartesian2d',
            x: rect.x,
            y: rect.y,
            width: rect.width,
            height: rect.height
        },
        api: {
            coord: function (data) {
                // do not provide "out" param
                return coordSys.dataToPoint(data);
            },
            size: bind(dataToCoordSize, coordSys)
        }
    };
};

function dataToCoordSize$1(dataSize, dataItem) {
    dataItem = dataItem || [0, 0];
    return map([0, 1], function (dimIdx) {
        var val = dataItem[dimIdx];
        var halfSize = dataSize[dimIdx] / 2;
        var p1 = [];
        var p2 = [];
        p1[dimIdx] = val - halfSize;
        p2[dimIdx] = val + halfSize;
        p1[1 - dimIdx] = p2[1 - dimIdx] = dataItem[1 - dimIdx];
        return Math.abs(this.dataToPoint(p1)[dimIdx] - this.dataToPoint(p2)[dimIdx]);
    }, this);
}

var prepareGeo = function (coordSys) {
    var rect = coordSys.getBoundingRect();
    return {
        coordSys: {
            type: 'geo',
            x: rect.x,
            y: rect.y,
            width: rect.width,
            height: rect.height
        },
        api: {
            coord: function (data) {
                // do not provide "out" and noRoam param,
                // Compatible with this usage:
                // echarts.util.map(item.points, api.coord)
                return coordSys.dataToPoint(data);
            },
            size: bind(dataToCoordSize$1, coordSys)
        }
    };
};

function dataToCoordSize$2(dataSize, dataItem) {
    // dataItem is necessary in log axis.
    var axis = this.getAxis();
    var val = dataItem instanceof Array ? dataItem[0] : dataItem;
    var halfSize = (dataSize instanceof Array ? dataSize[0] : dataSize) / 2;
    return axis.type === 'category'
        ? axis.getBandWidth()
        : Math.abs(axis.dataToCoord(val - halfSize) - axis.dataToCoord(val + halfSize));
}

var prepareSingleAxis = function (coordSys) {
    var rect = coordSys.getRect();

    return {
        coordSys: {
            type: 'singleAxis',
            x: rect.x,
            y: rect.y,
            width: rect.width,
            height: rect.height
        },
        api: {
            coord: function (val) {
                // do not provide "out" param
                return coordSys.dataToPoint(val);
            },
            size: bind(dataToCoordSize$2, coordSys)
        }
    };
};

function dataToCoordSize$3(dataSize, dataItem) {
    // dataItem is necessary in log axis.
    return map(['Radius', 'Angle'], function (dim, dimIdx) {
        var axis = this['get' + dim + 'Axis']();
        var val = dataItem[dimIdx];
        var halfSize = dataSize[dimIdx] / 2;
        var method = 'dataTo' + dim;

        var result = axis.type === 'category'
            ? axis.getBandWidth()
            : Math.abs(axis[method](val - halfSize) - axis[method](val + halfSize));

        if (dim === 'Angle') {
            result = result * Math.PI / 180;
        }

        return result;

    }, this);
}

var preparePolar = function (coordSys) {
    var radiusAxis = coordSys.getRadiusAxis();
    var angleAxis = coordSys.getAngleAxis();
    var radius = radiusAxis.getExtent();
    radius[0] > radius[1] && radius.reverse();

    return {
        coordSys: {
            type: 'polar',
            cx: coordSys.cx,
            cy: coordSys.cy,
            r: radius[1],
            r0: radius[0]
        },
        api: {
            coord: bind(function (data) {
                var radius = radiusAxis.dataToRadius(data[0]);
                var angle = angleAxis.dataToAngle(data[1]);
                var coord = coordSys.coordToPoint([radius, angle]);
                coord.push(radius, angle * Math.PI / 180);
                return coord;
            }),
            size: bind(dataToCoordSize$3, coordSys)
        }
    };
};

var prepareCalendar = function (coordSys) {
    var rect = coordSys.getRect();
    var rangeInfo = coordSys.getRangeInfo();

    return {
        coordSys: {
            type: 'calendar',
            x: rect.x,
            y: rect.y,
            width: rect.width,
            height: rect.height,
            cellWidth: coordSys.getCellWidth(),
            cellHeight: coordSys.getCellHeight(),
            rangeInfo: {
                start: rangeInfo.start,
                end: rangeInfo.end,
                weeks: rangeInfo.weeks,
                dayCount: rangeInfo.allDay
            }
        },
        api: {
            coord: function (data, clamp) {
                return coordSys.dataToPoint(data, clamp);
            }
        }
    };
};

var ITEM_STYLE_NORMAL_PATH = ['itemStyle'];
var ITEM_STYLE_EMPHASIS_PATH = ['emphasis', 'itemStyle'];
var LABEL_NORMAL = ['label'];
var LABEL_EMPHASIS = ['emphasis', 'label'];
// Use prefix to avoid index to be the same as el.name,
// which will cause weird udpate animation.
var GROUP_DIFF_PREFIX = 'e\0\0';

/**
 * To reduce total package size of each coordinate systems, the modules `prepareCustom`
 * of each coordinate systems are not required by each coordinate systems directly, but
 * required by the module `custom`.
 *
 * prepareInfoForCustomSeries {Function}: optional
 *     @return {Object} {coordSys: {...}, api: {
 *         coord: function (data, clamp) {}, // return point in global.
 *         size: function (dataSize, dataItem) {} // return size of each axis in coordSys.
 *     }}
 */
var prepareCustoms = {
    cartesian2d: prepareCartesian2d,
    geo: prepareGeo,
    singleAxis: prepareSingleAxis,
    polar: preparePolar,
    calendar: prepareCalendar
};

// ------
// Model
// ------

extendSeriesModel({

    type: 'series.custom',

    dependencies: ['grid', 'polar', 'geo', 'singleAxis', 'calendar'],

    defaultOption: {
        coordinateSystem: 'cartesian2d', // Can be set as 'none'
        zlevel: 0,
        z: 2,
        legendHoverLink: true

        // Cartesian coordinate system
        // xAxisIndex: 0,
        // yAxisIndex: 0,

        // Polar coordinate system
        // polarIndex: 0,

        // Geo coordinate system
        // geoIndex: 0,

        // label: {}
        // itemStyle: {}
    },

    getInitialData: function (option, ecModel) {
        return createListFromArray(this.getSource(), this);
    }
});

// -----
// View
// -----

extendChartView({

    type: 'custom',

    /**
     * @private
     * @type {module:echarts/data/List}
     */
    _data: null,

    /**
     * @override
     */
    render: function (customSeries, ecModel, api) {
        var oldData = this._data;
        var data = customSeries.getData();
        var group = this.group;
        var renderItem = makeRenderItem(customSeries, data, ecModel, api);

        this.group.removeAll();

        data.diff(oldData)
            .add(function (newIdx) {
                createOrUpdate$1(
                    null, newIdx, renderItem(newIdx), customSeries, group, data
                );
            })
            .update(function (newIdx, oldIdx) {
                var el = oldData.getItemGraphicEl(oldIdx);
                createOrUpdate$1(
                    el, newIdx, renderItem(newIdx), customSeries, group, data
                );
            })
            .remove(function (oldIdx) {
                var el = oldData.getItemGraphicEl(oldIdx);
                el && group.remove(el);
            })
            .execute();

        this._data = data;
    },

    incrementalPrepareRender: function (customSeries, ecModel, api) {
        this.group.removeAll();
        this._data = null;
    },

    incrementalRender: function (params, customSeries, ecModel, api) {
        var data = customSeries.getData();
        var renderItem = makeRenderItem(customSeries, data, ecModel, api);
        function setIncrementalAndHoverLayer(el) {
            if (!el.isGroup) {
                el.incremental = true;
                el.useHoverLayer = true;
            }
        }
        for (var idx = params.start; idx < params.end; idx++) {
            var el = createOrUpdate$1(null, idx, renderItem(idx), customSeries, this.group, data);
            el.traverse(setIncrementalAndHoverLayer);
        }
    },

    /**
     * @override
     */
    dispose: noop
});


function createEl(elOption) {
    var graphicType = elOption.type;
    var el;

    if (graphicType === 'path') {
        var shape = elOption.shape;
        el = makePath(
            shape.pathData,
            null,
            {
                x: shape.x || 0,
                y: shape.y || 0,
                width: shape.width || 0,
                height: shape.height || 0
            },
            'center'
        );
        el.__customPathData = elOption.pathData;
    }
    else if (graphicType === 'image') {
        el = new ZImage({
        });
        el.__customImagePath = elOption.style.image;
    }
    else if (graphicType === 'text') {
        el = new Text({
        });
        el.__customText = elOption.style.text;
    }
    else {
        var Clz = graphic[graphicType.charAt(0).toUpperCase() + graphicType.slice(1)];

        if (__DEV__) {
            assert$1(Clz, 'graphic type "' + graphicType + '" can not be found.');
        }

        el = new Clz();
    }

    el.__customGraphicType = graphicType;
    el.name = elOption.name;

    return el;
}

function updateEl(el, dataIndex, elOption, animatableModel, data, isInit) {
    var targetProps = {};
    var elOptionStyle = elOption.style || {};

    elOption.shape && (targetProps.shape = clone(elOption.shape));
    elOption.position && (targetProps.position = elOption.position.slice());
    elOption.scale && (targetProps.scale = elOption.scale.slice());
    elOption.origin && (targetProps.origin = elOption.origin.slice());
    elOption.rotation && (targetProps.rotation = elOption.rotation);

    if (el.type === 'image' && elOption.style) {
        var targetStyle = targetProps.style = {};
        each$1(['x', 'y', 'width', 'height'], function (prop) {
            prepareStyleTransition(prop, targetStyle, elOptionStyle, el.style, isInit);
        });
    }

    if (el.type === 'text' && elOption.style) {
        var targetStyle = targetProps.style = {};
        each$1(['x', 'y'], function (prop) {
            prepareStyleTransition(prop, targetStyle, elOptionStyle, el.style, isInit);
        });
        // Compatible with previous: both support
        // textFill and fill, textStroke and stroke in 'text' element.
        !elOptionStyle.hasOwnProperty('textFill') && elOptionStyle.fill && (
            elOptionStyle.textFill = elOptionStyle.fill
        );
        !elOptionStyle.hasOwnProperty('textStroke') && elOptionStyle.stroke && (
            elOptionStyle.textStroke = elOptionStyle.stroke
        );
    }

    if (el.type !== 'group') {
        el.useStyle(elOptionStyle);

        // Init animation.
        if (isInit) {
            el.style.opacity = 0;
            var targetOpacity = elOptionStyle.opacity;
            targetOpacity == null && (targetOpacity = 1);
            initProps(el, {style: {opacity: targetOpacity}}, animatableModel, dataIndex);
        }
    }

    if (isInit) {
        el.attr(targetProps);
    }
    else {
        updateProps(el, targetProps, animatableModel, dataIndex);
    }

    // z2 must not be null/undefined, otherwise sort error may occur.
    el.attr({z2: elOption.z2 || 0, silent: elOption.silent});

    elOption.styleEmphasis !== false && setHoverStyle(el, elOption.styleEmphasis);
}

function prepareStyleTransition(prop, targetStyle, elOptionStyle, oldElStyle, isInit) {
    if (elOptionStyle[prop] != null && !isInit) {
        targetStyle[prop] = elOptionStyle[prop];
        elOptionStyle[prop] = oldElStyle[prop];
    }
}

function makeRenderItem(customSeries, data, ecModel, api) {
    var renderItem = customSeries.get('renderItem');
    var coordSys = customSeries.coordinateSystem;
    var prepareResult = {};

    if (coordSys) {
        if (__DEV__) {
            assert$1(renderItem, 'series.render is required.');
            assert$1(
                coordSys.prepareCustoms || prepareCustoms[coordSys.type],
                'This coordSys does not support custom series.'
            );
        }

        prepareResult = coordSys.prepareCustoms
            ? coordSys.prepareCustoms()
            : prepareCustoms[coordSys.type](coordSys);
    }

    var userAPI = defaults({
        getWidth: api.getWidth,
        getHeight: api.getHeight,
        getZr: api.getZr,
        getDevicePixelRatio: api.getDevicePixelRatio,
        value: value,
        style: style,
        styleEmphasis: styleEmphasis,
        visual: visual,
        barLayout: barLayout,
        currentSeriesIndices: currentSeriesIndices,
        font: font
    }, prepareResult.api || {});

    var userParams = {
        context: {},
        seriesId: customSeries.id,
        seriesName: customSeries.name,
        seriesIndex: customSeries.seriesIndex,
        coordSys: prepareResult.coordSys,
        dataInsideLength: data.count(),
        encode: wrapEncodeDef(customSeries.getData())
    };

    // Do not support call `api` asynchronously without dataIndexInside input.
    var currDataIndexInside;
    var currDirty = true;
    var currItemModel;
    var currLabelNormalModel;
    var currLabelEmphasisModel;
    var currVisualColor;

    return function (dataIndexInside) {
        currDataIndexInside = dataIndexInside;
        currDirty = true;
        return renderItem && renderItem(
            defaults({
                dataIndexInside: dataIndexInside,
                dataIndex: data.getRawIndex(dataIndexInside)
            }, userParams),
            userAPI
        ) || {};
    };

    // Do not update cache until api called.
    function updateCache(dataIndexInside) {
        dataIndexInside == null && (dataIndexInside = currDataIndexInside);
        if (currDirty) {
            currItemModel = data.getItemModel(dataIndexInside);
            currLabelNormalModel = currItemModel.getModel(LABEL_NORMAL);
            currLabelEmphasisModel = currItemModel.getModel(LABEL_EMPHASIS);
            currVisualColor = data.getItemVisual(dataIndexInside, 'color');

            currDirty = false;
        }
    }

    /**
     * @public
     * @param {number|string} dim
     * @param {number} [dataIndexInside=currDataIndexInside]
     * @return {number|string} value
     */
    function value(dim, dataIndexInside) {
        dataIndexInside == null && (dataIndexInside = currDataIndexInside);
        return data.get(data.getDimension(dim || 0), dataIndexInside);
    }

    /**
     * By default, `visual` is applied to style (to support visualMap).
     * `visual.color` is applied at `fill`. If user want apply visual.color on `stroke`,
     * it can be implemented as:
     * `api.style({stroke: api.visual('color'), fill: null})`;
     * @public
     * @param {Object} [extra]
     * @param {number} [dataIndexInside=currDataIndexInside]
     */
    function style(extra, dataIndexInside) {
        dataIndexInside == null && (dataIndexInside = currDataIndexInside);
        updateCache(dataIndexInside);

        var itemStyle = currItemModel.getModel(ITEM_STYLE_NORMAL_PATH).getItemStyle();

        currVisualColor != null && (itemStyle.fill = currVisualColor);
        var opacity = data.getItemVisual(dataIndexInside, 'opacity');
        opacity != null && (itemStyle.opacity = opacity);

        setTextStyle(itemStyle, currLabelNormalModel, null, {
            autoColor: currVisualColor,
            isRectText: true
        });

        itemStyle.text = currLabelNormalModel.getShallow('show')
            ? retrieve2(
                customSeries.getFormattedLabel(dataIndexInside, 'normal'),
                getDefaultLabel(data, dataIndexInside)
            )
            : null;

        extra && extend(itemStyle, extra);
        return itemStyle;
    }

    /**
     * @public
     * @param {Object} [extra]
     * @param {number} [dataIndexInside=currDataIndexInside]
     */
    function styleEmphasis(extra, dataIndexInside) {
        dataIndexInside == null && (dataIndexInside = currDataIndexInside);
        updateCache(dataIndexInside);

        var itemStyle = currItemModel.getModel(ITEM_STYLE_EMPHASIS_PATH).getItemStyle();

        setTextStyle(itemStyle, currLabelEmphasisModel, null, {
            isRectText: true
        }, true);

        itemStyle.text = currLabelEmphasisModel.getShallow('show')
            ? retrieve3(
                customSeries.getFormattedLabel(dataIndexInside, 'emphasis'),
                customSeries.getFormattedLabel(dataIndexInside, 'normal'),
                getDefaultLabel(data, dataIndexInside)
            )
            : null;

        extra && extend(itemStyle, extra);
        return itemStyle;
    }

    /**
     * @public
     * @param {string} visualType
     * @param {number} [dataIndexInside=currDataIndexInside]
     */
    function visual(visualType, dataIndexInside) {
        dataIndexInside == null && (dataIndexInside = currDataIndexInside);
        return data.getItemVisual(dataIndexInside, visualType);
    }

    /**
     * @public
     * @param {number} opt.count Positive interger.
     * @param {number} [opt.barWidth]
     * @param {number} [opt.barMaxWidth]
     * @param {number} [opt.barGap]
     * @param {number} [opt.barCategoryGap]
     * @return {Object} {width, offset, offsetCenter} is not support, return undefined.
     */
    function barLayout(opt) {
        if (coordSys.getBaseAxis) {
            var baseAxis = coordSys.getBaseAxis();
            return getLayoutOnAxis(defaults({axis: baseAxis}, opt), api);
        }
    }

    /**
     * @public
     * @return {Array.<number>}
     */
    function currentSeriesIndices() {
        return ecModel.getCurrentSeriesIndices();
    }

    /**
     * @public
     * @param {Object} opt
     * @param {string} [opt.fontStyle]
     * @param {number} [opt.fontWeight]
     * @param {number} [opt.fontSize]
     * @param {string} [opt.fontFamily]
     * @return {string} font string
     */
    function font(opt) {
        return getFont(opt, ecModel);
    }
}

function wrapEncodeDef(data) {
    var encodeDef = {};
    each$1(data.dimensions, function (dimName, dataDimIndex) {
        var dimInfo = data.getDimensionInfo(dimName);
        if (!dimInfo.isExtraCoord) {
            var coordDim = dimInfo.coordDim;
            var dataDims = encodeDef[coordDim] = encodeDef[coordDim] || [];
            dataDims[dimInfo.coordDimIndex] = dataDimIndex;
        }
    });
    return encodeDef;
}

function createOrUpdate$1(el, dataIndex, elOption, animatableModel, group, data) {
    el = doCreateOrUpdate(el, dataIndex, elOption, animatableModel, group, data);
    el && data.setItemGraphicEl(dataIndex, el);

    return el;
}

function doCreateOrUpdate(el, dataIndex, elOption, animatableModel, group, data) {
    var elOptionType = elOption.type;
    if (el
        && elOptionType !== el.__customGraphicType
        && (elOptionType !== 'path' || elOption.pathData !== el.__customPathData)
        && (elOptionType !== 'image' || elOption.style.image !== el.__customImagePath)
        && (elOptionType !== 'text' || elOption.style.text !== el.__customText)
    ) {
        group.remove(el);
        el = null;
    }

    // `elOption.type` is undefined when `renderItem` returns nothing.
    if (elOptionType == null) {
        return;
    }

    var isInit = !el;
    !el && (el = createEl(elOption));
    updateEl(el, dataIndex, elOption, animatableModel, data, isInit);

    if (elOptionType === 'group') {
        var oldChildren = el.children() || [];
        var newChildren = elOption.children || [];

        if (elOption.diffChildrenByName) {
            // lower performance.
            diffGroupChildren({
                oldChildren: oldChildren,
                newChildren: newChildren,
                dataIndex: dataIndex,
                animatableModel: animatableModel,
                group: el,
                data: data
            });
        }
        else {
            // better performance.
            var index = 0;
            for (; index < newChildren.length; index++) {
                doCreateOrUpdate(
                    el.childAt(index),
                    dataIndex,
                    newChildren[index],
                    animatableModel,
                    el,
                    data
                );
            }
            for (; index < oldChildren.length; index++) {
                oldChildren[index] && el.remove(oldChildren[index]);
            }
        }
    }

    group.add(el);

    return el;
}

function diffGroupChildren(context) {
    (new DataDiffer(
        context.oldChildren,
        context.newChildren,
        getKey,
        getKey,
        context
    ))
        .add(processAddUpdate)
        .update(processAddUpdate)
        .remove(processRemove)
        .execute();
}

function getKey(item, idx) {
    var name = item && item.name;
    return name != null ? name : GROUP_DIFF_PREFIX + idx;
}

function processAddUpdate(newIndex, oldIndex) {
    var context = this.context;
    var childOption = newIndex != null ? context.newChildren[newIndex] : null;
    var child = oldIndex != null ? context.oldChildren[oldIndex] : null;

    doCreateOrUpdate(
        child,
        context.dataIndex,
        childOption,
        context.animatableModel,
        context.group,
        context.data
    );
}

function processRemove(oldIndex) {
    var context = this.context;
    var child = context.oldChildren[oldIndex];
    child && context.group.remove(child);
}

// -------------
// Preprocessor
// -------------

registerPreprocessor(function (option) {
    var graphicOption = option.graphic;

    // Convert
    // {graphic: [{left: 10, type: 'circle'}, ...]}
    // or
    // {graphic: {left: 10, type: 'circle'}}
    // to
    // {graphic: [{elements: [{left: 10, type: 'circle'}, ...]}]}
    if (isArray(graphicOption)) {
        if (!graphicOption[0] || !graphicOption[0].elements) {
            option.graphic = [{elements: graphicOption}];
        }
        else {
            // Only one graphic instance can be instantiated. (We dont
            // want that too many views are created in echarts._viewMap)
            option.graphic = [option.graphic[0]];
        }
    }
    else if (graphicOption && !graphicOption.elements) {
        option.graphic = [{elements: [graphicOption]}];
    }
});

// ------
// Model
// ------

var GraphicModel = extendComponentModel({

    type: 'graphic',

    defaultOption: {

        // Extra properties for each elements:
        //
        // left/right/top/bottom: (like 12, '22%', 'center', default undefined)
        //      If left/rigth is set, shape.x/shape.cx/position will not be used.
        //      If top/bottom is set, shape.y/shape.cy/position will not be used.
        //      This mechanism is useful when you want to position a group/element
        //      against the right side or the center of this container.
        //
        // width/height: (can only be pixel value, default 0)
        //      Only be used to specify contianer(group) size, if needed. And
        //      can not be percentage value (like '33%'). See the reason in the
        //      layout algorithm below.
        //
        // bounding: (enum: 'all' (default) | 'raw')
        //      Specify how to calculate boundingRect when locating.
        //      'all': Get uioned and transformed boundingRect
        //          from both itself and its descendants.
        //          This mode simplies confining a group of elements in the bounding
        //          of their ancester container (e.g., using 'right: 0').
        //      'raw': Only use the boundingRect of itself and before transformed.
        //          This mode is similar to css behavior, which is useful when you
        //          want an element to be able to overflow its container. (Consider
        //          a rotated circle needs to be located in a corner.)

        // Note: elements is always behind its ancestors in this elements array.
        elements: [],
        parentId: null
    },

    /**
     * Save el options for the sake of the performance (only update modified graphics).
     * The order is the same as those in option. (ancesters -> descendants)
     *
     * @private
     * @type {Array.<Object>}
     */
    _elOptionsToUpdate: null,

    /**
     * @override
     */
    mergeOption: function (option) {
        // Prevent default merge to elements
        var elements = this.option.elements;
        this.option.elements = null;

        GraphicModel.superApply(this, 'mergeOption', arguments);

        this.option.elements = elements;
    },

    /**
     * @override
     */
    optionUpdated: function (newOption, isInit) {
        var thisOption = this.option;
        var newList = (isInit ? thisOption : newOption).elements;
        var existList = thisOption.elements = isInit ? [] : thisOption.elements;

        var flattenedList = [];
        this._flatten(newList, flattenedList);

        var mappingResult = mappingToExists(existList, flattenedList);
        makeIdAndName(mappingResult);

        // Clear elOptionsToUpdate
        var elOptionsToUpdate = this._elOptionsToUpdate = [];

        each$1(mappingResult, function (resultItem, index) {
            var newElOption = resultItem.option;

            if (__DEV__) {
                assert$1(
                    isObject$1(newElOption) || resultItem.exist,
                    'Empty graphic option definition'
                );
            }

            if (!newElOption) {
                return;
            }

            elOptionsToUpdate.push(newElOption);

            setKeyInfoToNewElOption(resultItem, newElOption);

            mergeNewElOptionToExist(existList, index, newElOption);

            setLayoutInfoToExist(existList[index], newElOption);

        }, this);

        // Clean
        for (var i = existList.length - 1; i >= 0; i--) {
            if (existList[i] == null) {
                existList.splice(i, 1);
            }
            else {
                // $action should be volatile, otherwise option gotten from
                // `getOption` will contain unexpected $action.
                delete existList[i].$action;
            }
        }
    },

    /**
     * Convert
     * [{
     *  type: 'group',
     *  id: 'xx',
     *  children: [{type: 'circle'}, {type: 'polygon'}]
     * }]
     * to
     * [
     *  {type: 'group', id: 'xx'},
     *  {type: 'circle', parentId: 'xx'},
     *  {type: 'polygon', parentId: 'xx'}
     * ]
     *
     * @private
     * @param {Array.<Object>} optionList option list
     * @param {Array.<Object>} result result of flatten
     * @param {Object} parentOption parent option
     */
    _flatten: function (optionList, result, parentOption) {
        each$1(optionList, function (option) {
            if (!option) {
                return;
            }

            if (parentOption) {
                option.parentOption = parentOption;
            }

            result.push(option);

            var children = option.children;
            if (option.type === 'group' && children) {
                this._flatten(children, result, option);
            }
            // Deleting for JSON output, and for not affecting group creation.
            delete option.children;
        }, this);
    },

    // FIXME
    // Pass to view using payload? setOption has a payload?
    useElOptionsToUpdate: function () {
        var els = this._elOptionsToUpdate;
        // Clear to avoid render duplicately when zooming.
        this._elOptionsToUpdate = null;
        return els;
    }
});

// -----
// View
// -----

extendComponentView({

    type: 'graphic',

    /**
     * @override
     */
    init: function (ecModel, api) {

        /**
         * @private
         * @type {module:zrender/core/util.HashMap}
         */
        this._elMap = createHashMap();

        /**
         * @private
         * @type {module:echarts/graphic/GraphicModel}
         */
        this._lastGraphicModel;
    },

    /**
     * @override
     */
    render: function (graphicModel, ecModel, api) {

        // Having leveraged between use cases and algorithm complexity, a very
        // simple layout mechanism is used:
        // The size(width/height) can be determined by itself or its parent (not
        // implemented yet), but can not by its children. (Top-down travel)
        // The location(x/y) can be determined by the bounding rect of itself
        // (can including its descendants or not) and the size of its parent.
        // (Bottom-up travel)

        // When `chart.clear()` or `chart.setOption({...}, true)` with the same id,
        // view will be reused.
        if (graphicModel !== this._lastGraphicModel) {
            this._clear();
        }
        this._lastGraphicModel = graphicModel;

        this._updateElements(graphicModel, api);
        this._relocate(graphicModel, api);
    },

    /**
     * Update graphic elements.
     *
     * @private
     * @param {Object} graphicModel graphic model
     * @param {module:echarts/ExtensionAPI} api extension API
     */
    _updateElements: function (graphicModel, api) {
        var elOptionsToUpdate = graphicModel.useElOptionsToUpdate();

        if (!elOptionsToUpdate) {
            return;
        }

        var elMap = this._elMap;
        var rootGroup = this.group;

        // Top-down tranverse to assign graphic settings to each elements.
        each$1(elOptionsToUpdate, function (elOption) {
            var $action = elOption.$action;
            var id = elOption.id;
            var existEl = elMap.get(id);
            var parentId = elOption.parentId;
            var targetElParent = parentId != null ? elMap.get(parentId) : rootGroup;

            if (elOption.type === 'text') {
                var elOptionStyle = elOption.style;

                // In top/bottom mode, textVerticalAlign should not be used, which cause
                // inaccurately locating.
                if (elOption.hv && elOption.hv[1]) {
                    elOptionStyle.textVerticalAlign = elOptionStyle.textBaseline = null;
                }

                // Compatible with previous setting: both support fill and textFill,
                // stroke and textStroke.
                !elOptionStyle.hasOwnProperty('textFill') && elOptionStyle.fill && (
                    elOptionStyle.textFill = elOptionStyle.fill
                );
                !elOptionStyle.hasOwnProperty('textStroke') && elOptionStyle.stroke && (
                    elOptionStyle.textStroke = elOptionStyle.stroke
                );
            }

            // Remove unnecessary props to avoid potential problems.
            var elOptionCleaned = getCleanedElOption(elOption);

            // For simple, do not support parent change, otherwise reorder is needed.
            if (__DEV__) {
                existEl && assert$1(
                    targetElParent === existEl.parent,
                    'Changing parent is not supported.'
                );
            }

            if (!$action || $action === 'merge') {
                existEl
                    ? existEl.attr(elOptionCleaned)
                    : createEl$1(id, targetElParent, elOptionCleaned, elMap);
            }
            else if ($action === 'replace') {
                removeEl(existEl, elMap);
                createEl$1(id, targetElParent, elOptionCleaned, elMap);
            }
            else if ($action === 'remove') {
                removeEl(existEl, elMap);
            }

            var el = elMap.get(id);
            if (el) {
                el.__ecGraphicWidth = elOption.width;
                el.__ecGraphicHeight = elOption.height;
            }
        });
    },

    /**
     * Locate graphic elements.
     *
     * @private
     * @param {Object} graphicModel graphic model
     * @param {module:echarts/ExtensionAPI} api extension API
     */
    _relocate: function (graphicModel, api) {
        var elOptions = graphicModel.option.elements;
        var rootGroup = this.group;
        var elMap = this._elMap;

        // Bottom-up tranvese all elements (consider ec resize) to locate elements.
        for (var i = elOptions.length - 1; i >= 0; i--) {
            var elOption = elOptions[i];
            var el = elMap.get(elOption.id);

            if (!el) {
                continue;
            }

            var parentEl = el.parent;
            var containerInfo = parentEl === rootGroup
                ? {
                    width: api.getWidth(),
                    height: api.getHeight()
                }
                : { // Like 'position:absolut' in css, default 0.
                    width: parentEl.__ecGraphicWidth || 0,
                    height: parentEl.__ecGraphicHeight || 0
                };

            positionElement(
                el, elOption, containerInfo, null,
                {hv: elOption.hv, boundingMode: elOption.bounding}
            );
        }
    },

    /**
     * Clear all elements.
     *
     * @private
     */
    _clear: function () {
        var elMap = this._elMap;
        elMap.each(function (el) {
            removeEl(el, elMap);
        });
        this._elMap = createHashMap();
    },

    /**
     * @override
     */
    dispose: function () {
        this._clear();
    }
});

function createEl$1(id, targetElParent, elOption, elMap) {
    var graphicType = elOption.type;

    if (__DEV__) {
        assert$1(graphicType, 'graphic type MUST be set');
    }

    var Clz = graphic[graphicType.charAt(0).toUpperCase() + graphicType.slice(1)];

    if (__DEV__) {
        assert$1(Clz, 'graphic type can not be found');
    }

    var el = new Clz(elOption);
    targetElParent.add(el);
    elMap.set(id, el);
    el.__ecGraphicId = id;
}

function removeEl(existEl, elMap) {
    var existElParent = existEl && existEl.parent;
    if (existElParent) {
        existEl.type === 'group' && existEl.traverse(function (el) {
            removeEl(el, elMap);
        });
        elMap.removeKey(existEl.__ecGraphicId);
        existElParent.remove(existEl);
    }
}

// Remove unnecessary props to avoid potential problems.
function getCleanedElOption(elOption) {
    elOption = extend({}, elOption);
    each$1(
        ['id', 'parentId', '$action', 'hv', 'bounding'].concat(LOCATION_PARAMS),
        function (name) {
            delete elOption[name];
        }
    );
    return elOption;
}

function isSetLoc(obj, props) {
    var isSet;
    each$1(props, function (prop) {
        obj[prop] != null && obj[prop] !== 'auto' && (isSet = true);
    });
    return isSet;
}

function setKeyInfoToNewElOption(resultItem, newElOption) {
    var existElOption = resultItem.exist;

    // Set id and type after id assigned.
    newElOption.id = resultItem.keyInfo.id;
    !newElOption.type && existElOption && (newElOption.type = existElOption.type);

    // Set parent id if not specified
    if (newElOption.parentId == null) {
        var newElParentOption = newElOption.parentOption;
        if (newElParentOption) {
            newElOption.parentId = newElParentOption.id;
        }
        else if (existElOption) {
            newElOption.parentId = existElOption.parentId;
        }
    }

    // Clear
    newElOption.parentOption = null;
}

function mergeNewElOptionToExist(existList, index, newElOption) {
    // Update existing options, for `getOption` feature.
    var newElOptCopy = extend({}, newElOption);
    var existElOption = existList[index];

    var $action = newElOption.$action || 'merge';
    if ($action === 'merge') {
        if (existElOption) {

            if (__DEV__) {
                var newType = newElOption.type;
                assert$1(
                    !newType || existElOption.type === newType,
                    'Please set $action: "replace" to change `type`'
                );
            }

            // We can ensure that newElOptCopy and existElOption are not
            // the same object, so `merge` will not change newElOptCopy.
            merge(existElOption, newElOptCopy, true);
            // Rigid body, use ignoreSize.
            mergeLayoutParam(existElOption, newElOptCopy, {ignoreSize: true});
            // Will be used in render.
            copyLayoutParams(newElOption, existElOption);
        }
        else {
            existList[index] = newElOptCopy;
        }
    }
    else if ($action === 'replace') {
        existList[index] = newElOptCopy;
    }
    else if ($action === 'remove') {
        // null will be cleaned later.
        existElOption && (existList[index] = null);
    }
}

function setLayoutInfoToExist(existItem, newElOption) {
    if (!existItem) {
        return;
    }
    existItem.hv = newElOption.hv = [
        // Rigid body, dont care `width`.
        isSetLoc(newElOption, ['left', 'right']),
        // Rigid body, dont care `height`.
        isSetLoc(newElOption, ['top', 'bottom'])
    ];
    // Give default group size. Otherwise layout error may occur.
    if (existItem.type === 'group') {
        existItem.width == null && (existItem.width = newElOption.width = 0);
        existItem.height == null && (existItem.height = newElOption.height = 0);
    }
}

var LegendModel = extendComponentModel({

    type: 'legend.plain',

    dependencies: ['series'],

    layoutMode: {
        type: 'box',
        // legend.width/height are maxWidth/maxHeight actually,
        // whereas realy width/height is calculated by its content.
        // (Setting {left: 10, right: 10} does not make sense).
        // So consider the case:
        // `setOption({legend: {left: 10});`
        // then `setOption({legend: {right: 10});`
        // The previous `left` should be cleared by setting `ignoreSize`.
        ignoreSize: true
    },

    init: function (option, parentModel, ecModel) {
        this.mergeDefaultAndTheme(option, ecModel);

        option.selected = option.selected || {};
    },

    mergeOption: function (option) {
        LegendModel.superCall(this, 'mergeOption', option);
    },

    optionUpdated: function () {
        this._updateData(this.ecModel);

        var legendData = this._data;

        // If selectedMode is single, try to select one
        if (legendData[0] && this.get('selectedMode') === 'single') {
            var hasSelected = false;
            // If has any selected in option.selected
            for (var i = 0; i < legendData.length; i++) {
                var name = legendData[i].get('name');
                if (this.isSelected(name)) {
                    // Force to unselect others
                    this.select(name);
                    hasSelected = true;
                    break;
                }
            }
            // Try select the first if selectedMode is single
            !hasSelected && this.select(legendData[0].get('name'));
        }
    },

    _updateData: function (ecModel) {
        var potentialData = [];
        var availableNames = [];

        ecModel.eachRawSeries(function (seriesModel) {
            var seriesName = seriesModel.name;
            availableNames.push(seriesName);
            var isPotential;

            if (seriesModel.legendDataProvider) {
                var data = seriesModel.legendDataProvider();
                var names = data.mapArray(data.getName);

                if (!ecModel.isSeriesFiltered(seriesModel)) {
                    availableNames = availableNames.concat(names);
                }

                if (names.length) {
                    potentialData = potentialData.concat(names);
                }
                else {
                    isPotential = true;
                }
            }
            else {
                isPotential = true;
            }

            if (isPotential && isNameSpecified(seriesModel)) {
                potentialData.push(seriesModel.name);
            }
        });

        /**
         * @type {Array.<string>}
         * @private
         */
        this._availableNames = availableNames;

        // If legend.data not specified in option, use availableNames as data,
        // which is convinient for user preparing option.
        var rawData = this.get('data') || potentialData;

        var legendData = map(rawData, function (dataItem) {
            // Can be string or number
            if (typeof dataItem === 'string' || typeof dataItem === 'number') {
                dataItem = {
                    name: dataItem
                };
            }
            return new Model(dataItem, this, this.ecModel);
        }, this);

        /**
         * @type {Array.<module:echarts/model/Model>}
         * @private
         */
        this._data = legendData;
    },

    /**
     * @return {Array.<module:echarts/model/Model>}
     */
    getData: function () {
        return this._data;
    },

    /**
     * @param {string} name
     */
    select: function (name) {
        var selected = this.option.selected;
        var selectedMode = this.get('selectedMode');
        if (selectedMode === 'single') {
            var data = this._data;
            each$1(data, function (dataItem) {
                selected[dataItem.get('name')] = false;
            });
        }
        selected[name] = true;
    },

    /**
     * @param {string} name
     */
    unSelect: function (name) {
        if (this.get('selectedMode') !== 'single') {
            this.option.selected[name] = false;
        }
    },

    /**
     * @param {string} name
     */
    toggleSelected: function (name) {
        var selected = this.option.selected;
        // Default is true
        if (!selected.hasOwnProperty(name)) {
            selected[name] = true;
        }
        this[selected[name] ? 'unSelect' : 'select'](name);
    },

    /**
     * @param {string} name
     */
    isSelected: function (name) {
        var selected = this.option.selected;
        return !(selected.hasOwnProperty(name) && !selected[name])
            && indexOf(this._availableNames, name) >= 0;
    },

    defaultOption: {
        // 一级层叠
        zlevel: 0,
        // 二级层叠
        z: 4,
        show: true,

        // 布局方式，默认为水平布局，可选为：
        // 'horizontal' | 'vertical'
        orient: 'horizontal',

        left: 'center',
        // right: 'center',

        top: 0,
        // bottom: null,

        // 水平对齐
        // 'auto' | 'left' | 'right'
        // 默认为 'auto', 根据 x 的位置判断是左对齐还是右对齐
        align: 'auto',

        backgroundColor: 'rgba(0,0,0,0)',
        // 图例边框颜色
        borderColor: '#ccc',
        borderRadius: 0,
        // 图例边框线宽，单位px，默认为0（无边框）
        borderWidth: 0,
        // 图例内边距，单位px，默认各方向内边距为5，
        // 接受数组分别设定上右下左边距，同css
        padding: 5,
        // 各个item之间的间隔，单位px，默认为10，
        // 横向布局时为水平间隔，纵向布局时为纵向间隔
        itemGap: 10,
        // 图例图形宽度
        itemWidth: 25,
        // 图例图形高度
        itemHeight: 14,

        // 图例关闭时候的颜色
        inactiveColor: '#ccc',

        textStyle: {
            // 图例文字颜色
            color: '#333'
        },
        // formatter: '',
        // 选择模式，默认开启图例开关
        selectedMode: true,
        // 配置默认选中状态，可配合LEGEND.SELECTED事件做动态数据载入
        // selected: null,
        // 图例内容（详见legend.data，数组中每一项代表一个item
        // data: [],

        // Tooltip 相关配置
        tooltip: {
            show: false
        }
    }
});

function legendSelectActionHandler(methodName, payload, ecModel) {
    var selectedMap = {};
    var isToggleSelect = methodName === 'toggleSelected';
    var isSelected;
    // Update all legend components
    ecModel.eachComponent('legend', function (legendModel) {
        if (isToggleSelect && isSelected != null) {
            // Force other legend has same selected status
            // Or the first is toggled to true and other are toggled to false
            // In the case one legend has some item unSelected in option. And if other legend
            // doesn't has the item, they will assume it is selected.
            legendModel[isSelected ? 'select' : 'unSelect'](payload.name);
        }
        else {
            legendModel[methodName](payload.name);
            isSelected = legendModel.isSelected(payload.name);
        }
        var legendData = legendModel.getData();
        each$1(legendData, function (model) {
            var name = model.get('name');
            // Wrap element
            if (name === '\n' || name === '') {
                return;
            }
            var isItemSelected = legendModel.isSelected(name);
            if (selectedMap.hasOwnProperty(name)) {
                // Unselected if any legend is unselected
                selectedMap[name] = selectedMap[name] && isItemSelected;
            }
            else {
                selectedMap[name] = isItemSelected;
            }
        });
    });
    // Return the event explicitly
    return {
        name: payload.name,
        selected: selectedMap
    };
}
/**
 * @event legendToggleSelect
 * @type {Object}
 * @property {string} type 'legendToggleSelect'
 * @property {string} [from]
 * @property {string} name Series name or data item name
 */
registerAction(
    'legendToggleSelect', 'legendselectchanged',
    curry(legendSelectActionHandler, 'toggleSelected')
);

/**
 * @event legendSelect
 * @type {Object}
 * @property {string} type 'legendSelect'
 * @property {string} name Series name or data item name
 */
registerAction(
    'legendSelect', 'legendselected',
    curry(legendSelectActionHandler, 'select')
);

/**
 * @event legendUnSelect
 * @type {Object}
 * @property {string} type 'legendUnSelect'
 * @property {string} name Series name or data item name
 */
registerAction(
    'legendUnSelect', 'legendunselected',
    curry(legendSelectActionHandler, 'unSelect')
);

/**
 * Layout list like component.
 * It will box layout each items in group of component and then position the whole group in the viewport
 * @param {module:zrender/group/Group} group
 * @param {module:echarts/model/Component} componentModel
 * @param {module:echarts/ExtensionAPI}
 */
function layout$3(group, componentModel, api) {
    var boxLayoutParams = componentModel.getBoxLayoutParams();
    var padding = componentModel.get('padding');
    var viewportSize = {width: api.getWidth(), height: api.getHeight()};

    var rect = getLayoutRect(
        boxLayoutParams,
        viewportSize,
        padding
    );

    box(
        componentModel.get('orient'),
        group,
        componentModel.get('itemGap'),
        rect.width,
        rect.height
    );

    positionElement(
        group,
        boxLayoutParams,
        viewportSize,
        padding
    );
}

function makeBackground(rect, componentModel) {
    var padding = normalizeCssArray$1(
        componentModel.get('padding')
    );
    var style = componentModel.getItemStyle(['color', 'opacity']);
    style.fill = componentModel.get('backgroundColor');
    var rect = new Rect({
        shape: {
            x: rect.x - padding[3],
            y: rect.y - padding[0],
            width: rect.width + padding[1] + padding[3],
            height: rect.height + padding[0] + padding[2],
            r: componentModel.get('borderRadius')
        },
        style: style,
        silent: true,
        z2: -1
    });
    // FIXME
    // `subPixelOptimizeRect` may bring some gap between edge of viewpart
    // and background rect when setting like `left: 0`, `top: 0`.
    // graphic.subPixelOptimizeRect(rect);

    return rect;
}

var curry$4 = curry;
var each$17 = each$1;
var Group$3 = Group;

var LegendView = extendComponentView({

    type: 'legend.plain',

    newlineDisabled: false,

    /**
     * @override
     */
    init: function () {

        /**
         * @private
         * @type {module:zrender/container/Group}
         */
        this.group.add(this._contentGroup = new Group$3());

        /**
         * @private
         * @type {module:zrender/Element}
         */
        this._backgroundEl;
    },

    /**
     * @protected
     */
    getContentGroup: function () {
        return this._contentGroup;
    },

    /**
     * @override
     */
    render: function (legendModel, ecModel, api) {

        this.resetInner();

        if (!legendModel.get('show', true)) {
            return;
        }

        var itemAlign = legendModel.get('align');
        if (!itemAlign || itemAlign === 'auto') {
            itemAlign = (
                legendModel.get('left') === 'right'
                && legendModel.get('orient') === 'vertical'
            ) ? 'right' : 'left';
        }

        this.renderInner(itemAlign, legendModel, ecModel, api);

        // Perform layout.
        var positionInfo = legendModel.getBoxLayoutParams();
        var viewportSize = {width: api.getWidth(), height: api.getHeight()};
        var padding = legendModel.get('padding');

        var maxSize = getLayoutRect(positionInfo, viewportSize, padding);
        var mainRect = this.layoutInner(legendModel, itemAlign, maxSize);

        // Place mainGroup, based on the calculated `mainRect`.
        var layoutRect = getLayoutRect(
            defaults({width: mainRect.width, height: mainRect.height}, positionInfo),
            viewportSize,
            padding
        );
        this.group.attr('position', [layoutRect.x - mainRect.x, layoutRect.y - mainRect.y]);

        // Render background after group is layout.
        this.group.add(
            this._backgroundEl = makeBackground(mainRect, legendModel)
        );
    },

    /**
     * @protected
     */
    resetInner: function () {
        this.getContentGroup().removeAll();
        this._backgroundEl && this.group.remove(this._backgroundEl);
    },

    /**
     * @protected
     */
    renderInner: function (itemAlign, legendModel, ecModel, api) {
        var contentGroup = this.getContentGroup();
        var legendDrawnMap = createHashMap();
        var selectMode = legendModel.get('selectedMode');

        each$17(legendModel.getData(), function (itemModel, dataIndex) {
            var name = itemModel.get('name');

            // Use empty string or \n as a newline string
            if (!this.newlineDisabled && (name === '' || name === '\n')) {
                contentGroup.add(new Group$3({
                    newline: true
                }));
                return;
            }

            var seriesModel = ecModel.getSeriesByName(name)[0];

            if (legendDrawnMap.get(name)) {
                // Have been drawed
                return;
            }

            // Series legend
            if (seriesModel) {
                var data = seriesModel.getData();
                var color = data.getVisual('color');

                // If color is a callback function
                if (typeof color === 'function') {
                    // Use the first data
                    color = color(seriesModel.getDataParams(0));
                }

                // Using rect symbol defaultly
                var legendSymbolType = data.getVisual('legendSymbol') || 'roundRect';
                var symbolType = data.getVisual('symbol');

                var itemGroup = this._createItem(
                    name, dataIndex, itemModel, legendModel,
                    legendSymbolType, symbolType,
                    itemAlign, color,
                    selectMode
                );

                itemGroup.on('click', curry$4(dispatchSelectAction, name, api))
                    .on('mouseover', curry$4(dispatchHighlightAction, seriesModel, null, api))
                    .on('mouseout', curry$4(dispatchDownplayAction, seriesModel, null, api));

                legendDrawnMap.set(name, true);
            }
            else {
                // Data legend of pie, funnel
                ecModel.eachRawSeries(function (seriesModel) {
                    // In case multiple series has same data name
                    if (legendDrawnMap.get(name)) {
                        return;
                    }
                    if (seriesModel.legendDataProvider) {
                        var data = seriesModel.legendDataProvider();
                        var idx = data.indexOfName(name);
                        if (idx < 0) {
                            return;
                        }

                        var color = data.getItemVisual(idx, 'color');

                        var legendSymbolType = 'roundRect';

                        var itemGroup = this._createItem(
                            name, dataIndex, itemModel, legendModel,
                            legendSymbolType, null,
                            itemAlign, color,
                            selectMode
                        );

                        itemGroup.on('click', curry$4(dispatchSelectAction, name, api))
                            // FIXME Should not specify the series name
                            .on('mouseover', curry$4(dispatchHighlightAction, seriesModel, name, api))
                            .on('mouseout', curry$4(dispatchDownplayAction, seriesModel, name, api));

                        legendDrawnMap.set(name, true);
                    }
                }, this);
            }

            if (__DEV__) {
                if (!legendDrawnMap.get(name)) {
                    console.warn(name + ' series not exists. Legend data should be same with series name or data name.');
                }
            }
        }, this);
    },

    _createItem: function (
        name, dataIndex, itemModel, legendModel,
        legendSymbolType, symbolType,
        itemAlign, color, selectMode
    ) {
        var itemWidth = legendModel.get('itemWidth');
        var itemHeight = legendModel.get('itemHeight');
        var inactiveColor = legendModel.get('inactiveColor');

        var isSelected = legendModel.isSelected(name);
        var itemGroup = new Group$3();

        var textStyleModel = itemModel.getModel('textStyle');

        var itemIcon = itemModel.get('icon');

        var tooltipModel = itemModel.getModel('tooltip');
        var legendGlobalTooltipModel = tooltipModel.parentModel;

        // Use user given icon first
        legendSymbolType = itemIcon || legendSymbolType;
        itemGroup.add(createSymbol(
            legendSymbolType,
            0,
            0,
            itemWidth,
            itemHeight,
            isSelected ? color : inactiveColor,
            true
        ));

        // Compose symbols
        // PENDING
        if (!itemIcon && symbolType
            // At least show one symbol, can't be all none
            && ((symbolType !== legendSymbolType) || symbolType == 'none')
        ) {
            var size = itemHeight * 0.8;
            if (symbolType === 'none') {
                symbolType = 'circle';
            }
            // Put symbol in the center
            itemGroup.add(createSymbol(
                symbolType, (itemWidth - size) / 2, (itemHeight - size) / 2, size, size,
                isSelected ? color : inactiveColor
            ));
        }

        var textX = itemAlign === 'left' ? itemWidth + 5 : -5;
        var textAlign = itemAlign;

        var formatter = legendModel.get('formatter');
        var content = name;
        if (typeof formatter === 'string' && formatter) {
            content = formatter.replace('{name}', name != null ? name : '');
        }
        else if (typeof formatter === 'function') {
            content = formatter(name);
        }

        itemGroup.add(new Text({
            style: setTextStyle({}, textStyleModel, {
                text: content,
                x: textX,
                y: itemHeight / 2,
                textFill: isSelected ? textStyleModel.getTextColor() : inactiveColor,
                textAlign: textAlign,
                textVerticalAlign: 'middle'
            })
        }));

        // Add a invisible rect to increase the area of mouse hover
        var hitRect = new Rect({
            shape: itemGroup.getBoundingRect(),
            invisible: true,
            tooltip: tooltipModel.get('show') ? extend({
                content: name,
                // Defaul formatter
                formatter: legendGlobalTooltipModel.get('formatter', true) || function () {
                    return name;
                },
                formatterParams: {
                    componentType: 'legend',
                    legendIndex: legendModel.componentIndex,
                    name: name,
                    $vars: ['name']
                }
            }, tooltipModel.option) : null
        });
        itemGroup.add(hitRect);

        itemGroup.eachChild(function (child) {
            child.silent = true;
        });

        hitRect.silent = !selectMode;

        this.getContentGroup().add(itemGroup);

        setHoverStyle(itemGroup);

        itemGroup.__legendDataIndex = dataIndex;

        return itemGroup;
    },

    /**
     * @protected
     */
    layoutInner: function (legendModel, itemAlign, maxSize) {
        var contentGroup = this.getContentGroup();

        // Place items in contentGroup.
        box(
            legendModel.get('orient'),
            contentGroup,
            legendModel.get('itemGap'),
            maxSize.width,
            maxSize.height
        );

        var contentRect = contentGroup.getBoundingRect();
        contentGroup.attr('position', [-contentRect.x, -contentRect.y]);

        return this.group.getBoundingRect();
    }

});

function dispatchSelectAction(name, api) {
    api.dispatchAction({
        type: 'legendToggleSelect',
        name: name
    });
}

function dispatchHighlightAction(seriesModel, dataName, api) {
    // If element hover will move to a hoverLayer.
    var el = api.getZr().storage.getDisplayList()[0];
    if (!(el && el.useHoverLayer)) {
        seriesModel.get('legendHoverLink') && api.dispatchAction({
            type: 'highlight',
            seriesName: seriesModel.name,
            name: dataName
        });
    }
}

function dispatchDownplayAction(seriesModel, dataName, api) {
    // If element hover will move to a hoverLayer.
    var el = api.getZr().storage.getDisplayList()[0];
    if (!(el && el.useHoverLayer)) {
        seriesModel.get('legendHoverLink') && api.dispatchAction({
            type: 'downplay',
            seriesName: seriesModel.name,
            name: dataName
        });
    }
}

var legendFilter = function (ecModel) {

    var legendModels = ecModel.findComponents({
        mainType: 'legend'
    });
    if (legendModels && legendModels.length) {
        ecModel.filterSeries(function (series) {
            // If in any legend component the status is not selected.
            // Because in legend series is assumed selected when it is not in the legend data.
            for (var i = 0; i < legendModels.length; i++) {
                if (!legendModels[i].isSelected(series.name)) {
                    return false;
                }
            }
            return true;
        });
    }

};

// Do not contain scrollable legend, for sake of file size.

// Series Filter
registerProcessor(legendFilter);

ComponentModel.registerSubTypeDefaulter('legend', function () {
    // Default 'plain' when no type specified.
    return 'plain';
});

var ScrollableLegendModel = LegendModel.extend({

    type: 'legend.scroll',

    /**
     * @param {number} scrollDataIndex
     */
    setScrollDataIndex: function (scrollDataIndex) {
        this.option.scrollDataIndex = scrollDataIndex;
    },

    defaultOption: {
        scrollDataIndex: 0,
        pageButtonItemGap: 5,
        pageButtonGap: null,
        pageButtonPosition: 'end', // 'start' or 'end'
        pageFormatter: '{current}/{total}', // If null/undefined, do not show page.
        pageIcons: {
            horizontal: ['M0,0L12,-10L12,10z', 'M0,0L-12,-10L-12,10z'],
            vertical: ['M0,0L20,0L10,-20z', 'M0,0L20,0L10,20z']
        },
        pageIconColor: '#2f4554',
        pageIconInactiveColor: '#aaa',
        pageIconSize: 15, // Can be [10, 3], which represents [width, height]
        pageTextStyle: {
            color: '#333'
        },

        animationDurationUpdate: 800
    },

    /**
     * @override
     */
    init: function (option, parentModel, ecModel, extraOpt) {
        var inputPositionParams = getLayoutParams(option);

        ScrollableLegendModel.superCall(this, 'init', option, parentModel, ecModel, extraOpt);

        mergeAndNormalizeLayoutParams(this, option, inputPositionParams);
    },

    /**
     * @override
     */
    mergeOption: function (option, extraOpt) {
        ScrollableLegendModel.superCall(this, 'mergeOption', option, extraOpt);

        mergeAndNormalizeLayoutParams(this, this.option, option);
    },

    getOrient: function () {
        return this.get('orient') === 'vertical'
            ? {index: 1, name: 'vertical'}
            : {index: 0, name: 'horizontal'};
    }

});

// Do not `ignoreSize` to enable setting {left: 10, right: 10}.
function mergeAndNormalizeLayoutParams(legendModel, target, raw) {
    var orient = legendModel.getOrient();
    var ignoreSize = [1, 1];
    ignoreSize[orient.index] = 0;
    mergeLayoutParam(target, raw, {
        type: 'box', ignoreSize: ignoreSize
    });
}

/**
 * Separate legend and scrollable legend to reduce package size.
 */

var Group$4 = Group;

var WH$1 = ['width', 'height'];
var XY$1 = ['x', 'y'];

var ScrollableLegendView = LegendView.extend({

    type: 'legend.scroll',

    newlineDisabled: true,

    init: function () {

        ScrollableLegendView.superCall(this, 'init');

        /**
         * @private
         * @type {number} For `scroll`.
         */
        this._currentIndex = 0;

        /**
         * @private
         * @type {module:zrender/container/Group}
         */
        this.group.add(this._containerGroup = new Group$4());
        this._containerGroup.add(this.getContentGroup());

        /**
         * @private
         * @type {module:zrender/container/Group}
         */
        this.group.add(this._controllerGroup = new Group$4());

        /**
         *
         * @private
         */
        this._showController;
    },

    /**
     * @override
     */
    resetInner: function () {
        ScrollableLegendView.superCall(this, 'resetInner');

        this._controllerGroup.removeAll();
        this._containerGroup.removeClipPath();
        this._containerGroup.__rectSize = null;
    },

    /**
     * @override
     */
    renderInner: function (itemAlign, legendModel, ecModel, api) {
        var me = this;

        // Render content items.
        ScrollableLegendView.superCall(this, 'renderInner', itemAlign, legendModel, ecModel, api);

        var controllerGroup = this._controllerGroup;

        var pageIconSize = legendModel.get('pageIconSize', true);
        if (!isArray(pageIconSize)) {
            pageIconSize = [pageIconSize, pageIconSize];
        }

        createPageButton('pagePrev', 0);

        var pageTextStyleModel = legendModel.getModel('pageTextStyle');
        controllerGroup.add(new Text({
            name: 'pageText',
            style: {
                textFill: pageTextStyleModel.getTextColor(),
                font: pageTextStyleModel.getFont(),
                textVerticalAlign: 'middle',
                textAlign: 'center'
            },
            silent: true
        }));

        createPageButton('pageNext', 1);

        function createPageButton(name, iconIdx) {
            var pageDataIndexName = name + 'DataIndex';
            var icon = createIcon(
                legendModel.get('pageIcons', true)[legendModel.getOrient().name][iconIdx],
                {
                    // Buttons will be created in each render, so we do not need
                    // to worry about avoiding using legendModel kept in scope.
                    onclick: bind(
                        me._pageGo, me, pageDataIndexName, legendModel, api
                    )
                },
                {
                    x: -pageIconSize[0] / 2,
                    y: -pageIconSize[1] / 2,
                    width: pageIconSize[0],
                    height: pageIconSize[1]
                }
            );
            icon.name = name;
            controllerGroup.add(icon);
        }
    },

    /**
     * @override
     */
    layoutInner: function (legendModel, itemAlign, maxSize) {
        var contentGroup = this.getContentGroup();
        var containerGroup = this._containerGroup;
        var controllerGroup = this._controllerGroup;

        var orientIdx = legendModel.getOrient().index;
        var wh = WH$1[orientIdx];
        var hw = WH$1[1 - orientIdx];
        var yx = XY$1[1 - orientIdx];

        // Place items in contentGroup.
        box(
            legendModel.get('orient'),
            contentGroup,
            legendModel.get('itemGap'),
            !orientIdx ? null : maxSize.width,
            orientIdx ? null : maxSize.height
        );

        box(
            // Buttons in controller are layout always horizontally.
            'horizontal',
            controllerGroup,
            legendModel.get('pageButtonItemGap', true)
        );

        var contentRect = contentGroup.getBoundingRect();
        var controllerRect = controllerGroup.getBoundingRect();
        var showController = this._showController = contentRect[wh] > maxSize[wh];

        var contentPos = [-contentRect.x, -contentRect.y];
        // Remain contentPos when scroll animation perfroming.
        contentPos[orientIdx] = contentGroup.position[orientIdx];

        // Layout container group based on 0.
        var containerPos = [0, 0];
        var controllerPos = [-controllerRect.x, -controllerRect.y];
        var pageButtonGap = retrieve2(
            legendModel.get('pageButtonGap', true), legendModel.get('itemGap', true)
        );

        // Place containerGroup and controllerGroup and contentGroup.
        if (showController) {
            var pageButtonPosition = legendModel.get('pageButtonPosition', true);
            // controller is on the right / bottom.
            if (pageButtonPosition === 'end') {
                controllerPos[orientIdx] += maxSize[wh] - controllerRect[wh];
            }
            // controller is on the left / top.
            else {
                containerPos[orientIdx] += controllerRect[wh] + pageButtonGap;
            }
        }

        // Always align controller to content as 'middle'.
        controllerPos[1 - orientIdx] += contentRect[hw] / 2 - controllerRect[hw] / 2;

        contentGroup.attr('position', contentPos);
        containerGroup.attr('position', containerPos);
        controllerGroup.attr('position', controllerPos);

        // Calculate `mainRect` and set `clipPath`.
        // mainRect should not be calculated by `this.group.getBoundingRect()`
        // for sake of the overflow.
        var mainRect = this.group.getBoundingRect();
        var mainRect = {x: 0, y: 0};
        // Consider content may be overflow (should be clipped).
        mainRect[wh] = showController ? maxSize[wh] : contentRect[wh];
        mainRect[hw] = Math.max(contentRect[hw], controllerRect[hw]);
        // `containerRect[yx] + containerPos[1 - orientIdx]` is 0.
        mainRect[yx] = Math.min(0, controllerRect[yx] + controllerPos[1 - orientIdx]);

        containerGroup.__rectSize = maxSize[wh];
        if (showController) {
            var clipShape = {x: 0, y: 0};
            clipShape[wh] = Math.max(maxSize[wh] - controllerRect[wh] - pageButtonGap, 0);
            clipShape[hw] = mainRect[hw];
            containerGroup.setClipPath(new Rect({shape: clipShape}));
            // Consider content may be larger than container, container rect
            // can not be obtained from `containerGroup.getBoundingRect()`.
            containerGroup.__rectSize = clipShape[wh];
        }
        else {
            // Do not remove or ignore controller. Keep them set as place holders.
            controllerGroup.eachChild(function (child) {
                child.attr({invisible: true, silent: true});
            });
        }

        // Content translate animation.
        var pageInfo = this._getPageInfo(legendModel);
        pageInfo.pageIndex != null && updateProps(
            contentGroup,
            {position: pageInfo.contentPosition},
            // When switch from "show controller" to "not show controller", view should be
            // updated immediately without animation, otherwise causes weird efffect.
            showController ? legendModel : false
        );

        this._updatePageInfoView(legendModel, pageInfo);

        return mainRect;
    },

    _pageGo: function (to, legendModel, api) {
        var scrollDataIndex = this._getPageInfo(legendModel)[to];

        scrollDataIndex != null && api.dispatchAction({
            type: 'legendScroll',
            scrollDataIndex: scrollDataIndex,
            legendId: legendModel.id
        });
    },

    _updatePageInfoView: function (legendModel, pageInfo) {
        var controllerGroup = this._controllerGroup;

        each$1(['pagePrev', 'pageNext'], function (name) {
            var canJump = pageInfo[name + 'DataIndex'] != null;
            var icon = controllerGroup.childOfName(name);
            if (icon) {
                icon.setStyle(
                    'fill',
                    canJump
                        ? legendModel.get('pageIconColor', true)
                        : legendModel.get('pageIconInactiveColor', true)
                );
                icon.cursor = canJump ? 'pointer' : 'default';
            }
        });

        var pageText = controllerGroup.childOfName('pageText');
        var pageFormatter = legendModel.get('pageFormatter');
        var pageIndex = pageInfo.pageIndex;
        var current = pageIndex != null ? pageIndex + 1 : 0;
        var total = pageInfo.pageCount;

        pageText && pageFormatter && pageText.setStyle(
            'text',
            isString(pageFormatter)
                ? pageFormatter.replace('{current}', current).replace('{total}', total)
                : pageFormatter({current: current, total: total})
        );
    },

    /**
     * @param {module:echarts/model/Model} legendModel
     * @return {Object} {
     *  contentPosition: Array.<number>, null when data item not found.
     *  pageIndex: number, null when data item not found.
     *  pageCount: number, always be a number, can be 0.
     *  pagePrevDataIndex: number, null when no next page.
     *  pageNextDataIndex: number, null when no previous page.
     * }
     */
    _getPageInfo: function (legendModel) {
        // Align left or top by the current dataIndex.
        var currDataIndex = legendModel.get('scrollDataIndex', true);
        var contentGroup = this.getContentGroup();
        var contentRect = contentGroup.getBoundingRect();
        var containerRectSize = this._containerGroup.__rectSize;

        var orientIdx = legendModel.getOrient().index;
        var wh = WH$1[orientIdx];
        var hw = WH$1[1 - orientIdx];
        var xy = XY$1[orientIdx];
        var contentPos = contentGroup.position.slice();

        var pageIndex;
        var pagePrevDataIndex;
        var pageNextDataIndex;

        var targetItemGroup;
        if (this._showController) {
            contentGroup.eachChild(function (child) {
                if (child.__legendDataIndex === currDataIndex) {
                    targetItemGroup = child;
                }
            });
        }
        else {
            targetItemGroup = contentGroup.childAt(0);
        }

        var pageCount = containerRectSize ? Math.ceil(contentRect[wh] / containerRectSize) : 0;

        if (targetItemGroup) {
            var itemRect = targetItemGroup.getBoundingRect();
            var itemLoc = targetItemGroup.position[orientIdx] + itemRect[xy];
            contentPos[orientIdx] = -itemLoc - contentRect[xy];
            pageIndex = Math.floor(
                pageCount * (itemLoc + itemRect[xy] + containerRectSize / 2) / contentRect[wh]
            );
            pageIndex = (contentRect[wh] && pageCount)
                ? Math.max(0, Math.min(pageCount - 1, pageIndex))
                : -1;

            var winRect = {x: 0, y: 0};
            winRect[wh] = containerRectSize;
            winRect[hw] = contentRect[hw];
            winRect[xy] = -contentPos[orientIdx] - contentRect[xy];

            var startIdx;
            var children = contentGroup.children();

            contentGroup.eachChild(function (child, index) {
                var itemRect = getItemRect(child);

                if (itemRect.intersect(winRect)) {
                    startIdx == null && (startIdx = index);
                    // It is user-friendly that the last item shown in the
                    // current window is shown at the begining of next window.
                    pageNextDataIndex = child.__legendDataIndex;
                }

                // If the last item is shown entirely, no next page.
                if (index === children.length - 1
                    && itemRect[xy] + itemRect[wh] <= winRect[xy] + winRect[wh]
                ) {
                    pageNextDataIndex = null;
                }
            });

            // Always align based on the left/top most item, so the left/top most
            // item in the previous window is needed to be found here.
            if (startIdx != null) {
                var startItem = children[startIdx];
                var startRect = getItemRect(startItem);
                winRect[xy] = startRect[xy] + startRect[wh] - winRect[wh];

                // If the first item is shown entirely, no previous page.
                if (startIdx <= 0 && startRect[xy] >= winRect[xy]) {
                    pagePrevDataIndex = null;
                }
                else {
                    while (startIdx > 0 && getItemRect(children[startIdx - 1]).intersect(winRect)) {
                        startIdx--;
                    }
                    pagePrevDataIndex = children[startIdx].__legendDataIndex;
                }
            }
        }

        return {
            contentPosition: contentPos,
            pageIndex: pageIndex,
            pageCount: pageCount,
            pagePrevDataIndex: pagePrevDataIndex,
            pageNextDataIndex: pageNextDataIndex
        };

        function getItemRect(el) {
            var itemRect = el.getBoundingRect().clone();
            itemRect[xy] += el.position[orientIdx];
            return itemRect;
        }
    }

});

/**
 * @event legendScroll
 * @type {Object}
 * @property {string} type 'legendScroll'
 * @property {string} scrollDataIndex
 */
registerAction(
    'legendScroll', 'legendscroll',
    function (payload, ecModel) {
        var scrollDataIndex = payload.scrollDataIndex;

        scrollDataIndex != null && ecModel.eachComponent(
            {mainType: 'legend', subType: 'scroll', query: payload},
            function (legendModel) {
                legendModel.setScrollDataIndex(scrollDataIndex);
            }
        );
    }
);

/**
 * Legend component entry file8
 */

extendComponentModel({

    type: 'tooltip',

    dependencies: ['axisPointer'],

    defaultOption: {
        zlevel: 0,

        z: 8,

        show: true,

        // tooltip主体内容
        showContent: true,

        // 'trigger' only works on coordinate system.
        // 'item' | 'axis' | 'none'
        trigger: 'item',

        // 'click' | 'mousemove' | 'none'
        triggerOn: 'mousemove|click',

        alwaysShowContent: false,

        displayMode: 'single', // 'single' | 'multipleByCoordSys'

        // 位置 {Array} | {Function}
        // position: null
        // Consider triggered from axisPointer handle, verticalAlign should be 'middle'
        // align: null,
        // verticalAlign: null,

        // 是否约束 content 在 viewRect 中。默认 false 是为了兼容以前版本。
        confine: false,

        // 内容格式器：{string}（Template） ¦ {Function}
        // formatter: null

        showDelay: 0,

        // 隐藏延迟，单位ms
        hideDelay: 100,

        // 动画变换时间，单位s
        transitionDuration: 0.4,

        enterable: false,

        // 提示背景颜色，默认为透明度为0.7的黑色
        backgroundColor: 'rgba(50,50,50,0.7)',

        // 提示边框颜色
        borderColor: '#333',

        // 提示边框圆角，单位px，默认为4
        borderRadius: 4,

        // 提示边框线宽，单位px，默认为0（无边框）
        borderWidth: 0,

        // 提示内边距，单位px，默认各方向内边距为5，
        // 接受数组分别设定上右下左边距，同css
        padding: 5,

        // Extra css text
        extraCssText: '',

        // 坐标轴指示器，坐标轴触发有效
        axisPointer: {
            // 默认为直线
            // 可选为：'line' | 'shadow' | 'cross'
            type: 'line',

            // type 为 line 的时候有效，指定 tooltip line 所在的轴，可选
            // 可选 'x' | 'y' | 'angle' | 'radius' | 'auto'
            // 默认 'auto'，会选择类型为 category 的轴，对于双数值轴，笛卡尔坐标系会默认选择 x 轴
            // 极坐标系会默认选择 angle 轴
            axis: 'auto',

            animation: 'auto',
            animationDurationUpdate: 200,
            animationEasingUpdate: 'exponentialOut',

            crossStyle: {
                color: '#999',
                width: 1,
                type: 'dashed',

                // TODO formatter
                textStyle: {}
            }

            // lineStyle and shadowStyle should not be specified here,
            // otherwise it will always override those styles on option.axisPointer.
        },
        textStyle: {
            color: '#fff',
            fontSize: 14
        }
    }
});

var each$19 = each$1;
var toCamelCase$1 = toCamelCase;

var vendors = ['', '-webkit-', '-moz-', '-o-'];

var gCssText = 'position:absolute;display:block;border-style:solid;white-space:nowrap;z-index:9999999;';

/**
 * @param {number} duration
 * @return {string}
 * @inner
 */
function assembleTransition(duration) {
    var transitionCurve = 'cubic-bezier(0.23, 1, 0.32, 1)';
    var transitionText = 'left ' + duration + 's ' + transitionCurve + ','
                        + 'top ' + duration + 's ' + transitionCurve;
    return map(vendors, function (vendorPrefix) {
        return vendorPrefix + 'transition:' + transitionText;
    }).join(';');
}

/**
 * @param {Object} textStyle
 * @return {string}
 * @inner
 */
function assembleFont(textStyleModel) {
    var cssText = [];

    var fontSize = textStyleModel.get('fontSize');
    var color = textStyleModel.getTextColor();

    color && cssText.push('color:' + color);

    cssText.push('font:' + textStyleModel.getFont());

    fontSize &&
        cssText.push('line-height:' + Math.round(fontSize * 3 / 2) + 'px');

    each$19(['decoration', 'align'], function (name) {
        var val = textStyleModel.get(name);
        val && cssText.push('text-' + name + ':' + val);
    });

    return cssText.join(';');
}

/**
 * @param {Object} tooltipModel
 * @return {string}
 * @inner
 */
function assembleCssText(tooltipModel) {

    var cssText = [];

    var transitionDuration = tooltipModel.get('transitionDuration');
    var backgroundColor = tooltipModel.get('backgroundColor');
    var textStyleModel = tooltipModel.getModel('textStyle');
    var padding = tooltipModel.get('padding');

    // Animation transition. Do not animate when transitionDuration is 0.
    transitionDuration &&
        cssText.push(assembleTransition(transitionDuration));

    if (backgroundColor) {
        if (env$1.canvasSupported) {
            cssText.push('background-Color:' + backgroundColor);
        }
        else {
            // for ie
            cssText.push(
                'background-Color:#' + toHex(backgroundColor)
            );
            cssText.push('filter:alpha(opacity=70)');
        }
    }

    // Border style
    each$19(['width', 'color', 'radius'], function (name) {
        var borderName = 'border-' + name;
        var camelCase = toCamelCase$1(borderName);
        var val = tooltipModel.get(camelCase);
        val != null &&
            cssText.push(borderName + ':' + val + (name === 'color' ? '' : 'px'));
    });

    // Text style
    cssText.push(assembleFont(textStyleModel));

    // Padding
    if (padding != null) {
        cssText.push('padding:' + normalizeCssArray$1(padding).join('px ') + 'px');
    }

    return cssText.join(';') + ';';
}

/**
 * @alias module:echarts/component/tooltip/TooltipContent
 * @constructor
 */
function TooltipContent(container, api) {
    if (env$1.wxa) {
        return null;
    }

    var el = document.createElement('div');
    var zr = this._zr = api.getZr();

    this.el = el;

    this._x = api.getWidth() / 2;
    this._y = api.getHeight() / 2;

    container.appendChild(el);

    this._container = container;

    this._show = false;

    /**
     * @private
     */
    this._hideTimeout;

    var self = this;
    el.onmouseenter = function () {
        // clear the timeout in hideLater and keep showing tooltip
        if (self._enterable) {
            clearTimeout(self._hideTimeout);
            self._show = true;
        }
        self._inContent = true;
    };
    el.onmousemove = function (e) {
        e = e || window.event;
        if (!self._enterable) {
            // Try trigger zrender event to avoid mouse
            // in and out shape too frequently
            var handler = zr.handler;
            normalizeEvent(container, e, true);
            handler.dispatch('mousemove', e);
        }
    };
    el.onmouseleave = function () {
        if (self._enterable) {
            if (self._show) {
                self.hideLater(self._hideDelay);
            }
        }
        self._inContent = false;
    };
}

TooltipContent.prototype = {

    constructor: TooltipContent,

    /**
     * @private
     * @type {boolean}
     */
    _enterable: true,

    /**
     * Update when tooltip is rendered
     */
    update: function () {
        // FIXME
        // Move this logic to ec main?
        var container = this._container;
        var stl = container.currentStyle
            || document.defaultView.getComputedStyle(container);
        var domStyle = container.style;
        if (domStyle.position !== 'absolute' && stl.position !== 'absolute') {
            domStyle.position = 'relative';
        }
        // Hide the tooltip
        // PENDING
        // this.hide();
    },

    show: function (tooltipModel) {
        clearTimeout(this._hideTimeout);
        var el = this.el;

        el.style.cssText = gCssText + assembleCssText(tooltipModel)
            // http://stackoverflow.com/questions/21125587/css3-transition-not-working-in-chrome-anymore
            + ';left:' + this._x + 'px;top:' + this._y + 'px;'
            + (tooltipModel.get('extraCssText') || '');

        el.style.display = el.innerHTML ?  'block' : 'none';

        this._show = true;
    },

    setContent: function (content) {
        this.el.innerHTML = content == null ? '' : content;
    },

    setEnterable: function (enterable) {
        this._enterable = enterable;
    },

    getSize: function () {
        var el = this.el;
        return [el.clientWidth, el.clientHeight];
    },

    moveTo: function (x, y) {
        // xy should be based on canvas root. But tooltipContent is
        // the sibling of canvas root. So padding of ec container
        // should be considered here.
        var zr = this._zr;
        var viewportRootOffset;
        if (zr && zr.painter && (viewportRootOffset = zr.painter.getViewportRootOffset())) {
            x += viewportRootOffset.offsetLeft;
            y += viewportRootOffset.offsetTop;
        }

        var style = this.el.style;
        style.left = x + 'px';
        style.top = y + 'px';

        this._x = x;
        this._y = y;
    },

    hide: function () {
        this.el.style.display = 'none';
        this._show = false;
    },

    hideLater: function (time) {
        if (this._show && !(this._inContent && this._enterable)) {
            if (time) {
                this._hideDelay = time;
                // Set show false to avoid invoke hideLater mutiple times
                this._show = false;
                this._hideTimeout = setTimeout(bind(this.hide, this), time);
            }
            else {
                this.hide();
            }
        }
    },

    isShow: function () {
        return this._show;
    }
};

var bind$3 = bind;
var each$18 = each$1;
var parsePercent$2 = parsePercent$1;

var proxyRect = new Rect({
    shape: {x: -1, y: -1, width: 2, height: 2}
});

extendComponentView({

    type: 'tooltip',

    init: function (ecModel, api) {
        if (env$1.node) {
            return;
        }
        var tooltipContent = new TooltipContent(api.getDom(), api);
        this._tooltipContent = tooltipContent;
    },

    render: function (tooltipModel, ecModel, api) {
        if (env$1.node || env$1.wxa) {
            return;
        }

        // Reset
        this.group.removeAll();

        /**
         * @private
         * @type {module:echarts/component/tooltip/TooltipModel}
         */
        this._tooltipModel = tooltipModel;

        /**
         * @private
         * @type {module:echarts/model/Global}
         */
        this._ecModel = ecModel;

        /**
         * @private
         * @type {module:echarts/ExtensionAPI}
         */
        this._api = api;

        /**
         * Should be cleaned when render.
         * @private
         * @type {Array.<Array.<Object>>}
         */
        this._lastDataByCoordSys = null;

        /**
         * @private
         * @type {boolean}
         */
        this._alwaysShowContent = tooltipModel.get('alwaysShowContent');

        var tooltipContent = this._tooltipContent;
        tooltipContent.update();
        tooltipContent.setEnterable(tooltipModel.get('enterable'));

        this._initGlobalListener();

        this._keepShow();
    },

    _initGlobalListener: function () {
        var tooltipModel = this._tooltipModel;
        var triggerOn = tooltipModel.get('triggerOn');

        register(
            'itemTooltip',
            this._api,
            bind$3(function (currTrigger, e, dispatchAction) {
                // If 'none', it is not controlled by mouse totally.
                if (triggerOn !== 'none') {
                    if (triggerOn.indexOf(currTrigger) >= 0) {
                        this._tryShow(e, dispatchAction);
                    }
                    else if (currTrigger === 'leave') {
                        this._hide(dispatchAction);
                    }
                }
            }, this)
        );
    },

    _keepShow: function () {
        var tooltipModel = this._tooltipModel;
        var ecModel = this._ecModel;
        var api = this._api;

        // Try to keep the tooltip show when refreshing
        if (this._lastX != null
            && this._lastY != null
            // When user is willing to control tooltip totally using API,
            // self.manuallyShowTip({x, y}) might cause tooltip hide,
            // which is not expected.
            && tooltipModel.get('triggerOn') !== 'none'
        ) {
            var self = this;
            clearTimeout(this._refreshUpdateTimeout);
            this._refreshUpdateTimeout = setTimeout(function () {
                // Show tip next tick after other charts are rendered
                // In case highlight action has wrong result
                // FIXME
                self.manuallyShowTip(tooltipModel, ecModel, api, {
                    x: self._lastX,
                    y: self._lastY
                });
            });
        }
    },

    /**
     * Show tip manually by
     * dispatchAction({
     *     type: 'showTip',
     *     x: 10,
     *     y: 10
     * });
     * Or
     * dispatchAction({
     *      type: 'showTip',
     *      seriesIndex: 0,
     *      dataIndex or dataIndexInside or name
     * });
     *
     *  TODO Batch
     */
    manuallyShowTip: function (tooltipModel, ecModel, api, payload) {
        if (payload.from === this.uid || env$1.node) {
            return;
        }

        var dispatchAction = makeDispatchAction$1(payload, api);

        // Reset ticket
        this._ticket = '';

        // When triggered from axisPointer.
        var dataByCoordSys = payload.dataByCoordSys;

        if (payload.tooltip && payload.x != null && payload.y != null) {
            var el = proxyRect;
            el.position = [payload.x, payload.y];
            el.update();
            el.tooltip = payload.tooltip;
            // Manually show tooltip while view is not using zrender elements.
            this._tryShow({
                offsetX: payload.x,
                offsetY: payload.y,
                target: el
            }, dispatchAction);
        }
        else if (dataByCoordSys) {
            this._tryShow({
                offsetX: payload.x,
                offsetY: payload.y,
                position: payload.position,
                event: {},
                dataByCoordSys: payload.dataByCoordSys,
                tooltipOption: payload.tooltipOption
            }, dispatchAction);
        }
        else if (payload.seriesIndex != null) {

            if (this._manuallyAxisShowTip(tooltipModel, ecModel, api, payload)) {
                return;
            }

            var pointInfo = findPointFromSeries(payload, ecModel);
            var cx = pointInfo.point[0];
            var cy = pointInfo.point[1];
            if (cx != null && cy != null) {
                this._tryShow({
                    offsetX: cx,
                    offsetY: cy,
                    position: payload.position,
                    target: pointInfo.el,
                    event: {}
                }, dispatchAction);
            }
        }
        else if (payload.x != null && payload.y != null) {
            // FIXME
            // should wrap dispatchAction like `axisPointer/globalListener` ?
            api.dispatchAction({
                type: 'updateAxisPointer',
                x: payload.x,
                y: payload.y
            });

            this._tryShow({
                offsetX: payload.x,
                offsetY: payload.y,
                position: payload.position,
                target: api.getZr().findHover(payload.x, payload.y).target,
                event: {}
            }, dispatchAction);
        }
    },

    manuallyHideTip: function (tooltipModel, ecModel, api, payload) {
        var tooltipContent = this._tooltipContent;

        if (!this._alwaysShowContent && this._tooltipModel) {
            tooltipContent.hideLater(this._tooltipModel.get('hideDelay'));
        }

        this._lastX = this._lastY = null;

        if (payload.from !== this.uid) {
            this._hide(makeDispatchAction$1(payload, api));
        }
    },

    // Be compatible with previous design, that is, when tooltip.type is 'axis' and
    // dispatchAction 'showTip' with seriesIndex and dataIndex will trigger axis pointer
    // and tooltip.
    _manuallyAxisShowTip: function (tooltipModel, ecModel, api, payload) {
        var seriesIndex = payload.seriesIndex;
        var dataIndex = payload.dataIndex;
        var coordSysAxesInfo = ecModel.getComponent('axisPointer').coordSysAxesInfo;

        if (seriesIndex == null || dataIndex == null || coordSysAxesInfo == null) {
            return;
        }

        var seriesModel = ecModel.getSeriesByIndex(seriesIndex);
        if (!seriesModel) {
            return;
        }

        var data = seriesModel.getData();
        var tooltipModel = buildTooltipModel([
            data.getItemModel(dataIndex),
            seriesModel,
            (seriesModel.coordinateSystem || {}).model,
            tooltipModel
        ]);

        if (tooltipModel.get('trigger') !== 'axis') {
            return;
        }

        api.dispatchAction({
            type: 'updateAxisPointer',
            seriesIndex: seriesIndex,
            dataIndex: dataIndex,
            position: payload.position
        });

        return true;
    },

    _tryShow: function (e, dispatchAction) {
        var el = e.target;
        var tooltipModel = this._tooltipModel;

        if (!tooltipModel) {
            return;
        }

        // Save mouse x, mouse y. So we can try to keep showing the tip if chart is refreshed
        this._lastX = e.offsetX;
        this._lastY = e.offsetY;

        var dataByCoordSys = e.dataByCoordSys;
        if (dataByCoordSys && dataByCoordSys.length) {
            this._showAxisTooltip(dataByCoordSys, e);
        }
        // Always show item tooltip if mouse is on the element with dataIndex
        else if (el && el.dataIndex != null) {
            this._lastDataByCoordSys = null;
            this._showSeriesItemTooltip(e, el, dispatchAction);
        }
        // Tooltip provided directly. Like legend.
        else if (el && el.tooltip) {
            this._lastDataByCoordSys = null;
            this._showComponentItemTooltip(e, el, dispatchAction);
        }
        else {
            this._lastDataByCoordSys = null;
            this._hide(dispatchAction);
        }
    },

    _showOrMove: function (tooltipModel, cb) {
        // showDelay is used in this case: tooltip.enterable is set
        // as true. User intent to move mouse into tooltip and click
        // something. `showDelay` makes it easyer to enter the content
        // but tooltip do not move immediately.
        var delay = tooltipModel.get('showDelay');
        cb = bind(cb, this);
        clearTimeout(this._showTimout);
        delay > 0
            ? (this._showTimout = setTimeout(cb, delay))
            : cb();
    },

    _showAxisTooltip: function (dataByCoordSys, e) {
        var ecModel = this._ecModel;
        var globalTooltipModel = this._tooltipModel;
        var point = [e.offsetX, e.offsetY];
        var singleDefaultHTML = [];
        var singleParamsList = [];
        var singleTooltipModel = buildTooltipModel([
            e.tooltipOption,
            globalTooltipModel
        ]);

        each$18(dataByCoordSys, function (itemCoordSys) {
            // var coordParamList = [];
            // var coordDefaultHTML = [];
            // var coordTooltipModel = buildTooltipModel([
            //     e.tooltipOption,
            //     itemCoordSys.tooltipOption,
            //     ecModel.getComponent(itemCoordSys.coordSysMainType, itemCoordSys.coordSysIndex),
            //     globalTooltipModel
            // ]);
            // var displayMode = coordTooltipModel.get('displayMode');
            // var paramsList = displayMode === 'single' ? singleParamsList : [];

            each$18(itemCoordSys.dataByAxis, function (item) {
                var axisModel = ecModel.getComponent(item.axisDim + 'Axis', item.axisIndex);
                var axisValue = item.value;
                var seriesDefaultHTML = [];

                if (!axisModel || axisValue == null) {
                    return;
                }

                var valueLabel = getValueLabel(
                    axisValue, axisModel.axis, ecModel,
                    item.seriesDataIndices,
                    item.valueLabelOpt
                );

                each$1(item.seriesDataIndices, function (idxItem) {
                    var series = ecModel.getSeriesByIndex(idxItem.seriesIndex);
                    var dataIndex = idxItem.dataIndexInside;
                    var dataParams = series && series.getDataParams(dataIndex);
                    dataParams.axisDim = item.axisDim;
                    dataParams.axisIndex = item.axisIndex;
                    dataParams.axisType = item.axisType;
                    dataParams.axisId = item.axisId;
                    dataParams.axisValue = getAxisRawValue(axisModel.axis, axisValue);
                    dataParams.axisValueLabel = valueLabel;

                    if (dataParams) {
                        singleParamsList.push(dataParams);
                        seriesDefaultHTML.push(series.formatTooltip(dataIndex, true));
                    }
                });

                // Default tooltip content
                // FIXME
                // (1) shold be the first data which has name?
                // (2) themeRiver, firstDataIndex is array, and first line is unnecessary.
                var firstLine = valueLabel;
                singleDefaultHTML.push(
                    (firstLine ? encodeHTML(firstLine) + '<br />' : '')
                    + seriesDefaultHTML.join('<br />')
                );
            });
        }, this);

        // In most case, the second axis is shown upper than the first one.
        singleDefaultHTML.reverse();
        singleDefaultHTML = singleDefaultHTML.join('<br /><br />');

        var positionExpr = e.position;
        this._showOrMove(singleTooltipModel, function () {
            if (this._updateContentNotChangedOnAxis(dataByCoordSys)) {
                this._updatePosition(
                    singleTooltipModel,
                    positionExpr,
                    point[0], point[1],
                    this._tooltipContent,
                    singleParamsList
                );
            }
            else {
                this._showTooltipContent(
                    singleTooltipModel, singleDefaultHTML, singleParamsList, Math.random(),
                    point[0], point[1], positionExpr
                );
            }
        });

        // Do not trigger events here, because this branch only be entered
        // from dispatchAction.
    },

    _showSeriesItemTooltip: function (e, el, dispatchAction) {
        var ecModel = this._ecModel;
        // Use dataModel in element if possible
        // Used when mouseover on a element like markPoint or edge
        // In which case, the data is not main data in series.
        var seriesIndex = el.seriesIndex;
        var seriesModel = ecModel.getSeriesByIndex(seriesIndex);

        // For example, graph link.
        var dataModel = el.dataModel || seriesModel;
        var dataIndex = el.dataIndex;
        var dataType = el.dataType;
        var data = dataModel.getData();

        var tooltipModel = buildTooltipModel([
            data.getItemModel(dataIndex),
            dataModel,
            seriesModel && (seriesModel.coordinateSystem || {}).model,
            this._tooltipModel
        ]);

        var tooltipTrigger = tooltipModel.get('trigger');
        if (tooltipTrigger != null && tooltipTrigger !== 'item') {
            return;
        }

        var params = dataModel.getDataParams(dataIndex, dataType);
        var defaultHtml = dataModel.formatTooltip(dataIndex, false, dataType);
        var asyncTicket = 'item_' + dataModel.name + '_' + dataIndex;

        this._showOrMove(tooltipModel, function () {
            this._showTooltipContent(
                tooltipModel, defaultHtml, params, asyncTicket,
                e.offsetX, e.offsetY, e.position, e.target
            );
        });

        // FIXME
        // duplicated showtip if manuallyShowTip is called from dispatchAction.
        dispatchAction({
            type: 'showTip',
            dataIndexInside: dataIndex,
            dataIndex: data.getRawIndex(dataIndex),
            seriesIndex: seriesIndex,
            from: this.uid
        });
    },

    _showComponentItemTooltip: function (e, el, dispatchAction) {
        var tooltipOpt = el.tooltip;
        if (typeof tooltipOpt === 'string') {
            var content = tooltipOpt;
            tooltipOpt = {
                content: content,
                // Fixed formatter
                formatter: content
            };
        }
        var subTooltipModel = new Model(tooltipOpt, this._tooltipModel, this._ecModel);
        var defaultHtml = subTooltipModel.get('content');
        var asyncTicket = Math.random();

        // Do not check whether `trigger` is 'none' here, because `trigger`
        // only works on cooridinate system. In fact, we have not found case
        // that requires setting `trigger` nothing on component yet.

        this._showOrMove(subTooltipModel, function () {
            this._showTooltipContent(
                subTooltipModel, defaultHtml, subTooltipModel.get('formatterParams') || {},
                asyncTicket, e.offsetX, e.offsetY, e.position, el
            );
        });

        // If not dispatch showTip, tip may be hide triggered by axis.
        dispatchAction({
            type: 'showTip',
            from: this.uid
        });
    },

    _showTooltipContent: function (
        tooltipModel, defaultHtml, params, asyncTicket, x, y, positionExpr, el
    ) {
        // Reset ticket
        this._ticket = '';

        if (!tooltipModel.get('showContent') || !tooltipModel.get('show')) {
            return;
        }

        var tooltipContent = this._tooltipContent;

        var formatter = tooltipModel.get('formatter');
        positionExpr = positionExpr || tooltipModel.get('position');
        var html = defaultHtml;

        if (formatter && typeof formatter === 'string') {
            html = formatTpl(formatter, params, true);
        }
        else if (typeof formatter === 'function') {
            var callback = bind$3(function (cbTicket, html) {
                if (cbTicket === this._ticket) {
                    tooltipContent.setContent(html);
                    this._updatePosition(
                        tooltipModel, positionExpr, x, y, tooltipContent, params, el
                    );
                }
            }, this);
            this._ticket = asyncTicket;
            html = formatter(params, asyncTicket, callback);
        }

        tooltipContent.setContent(html);
        tooltipContent.show(tooltipModel);

        this._updatePosition(
            tooltipModel, positionExpr, x, y, tooltipContent, params, el
        );
    },

    /**
     * @param  {string|Function|Array.<number>|Object} positionExpr
     * @param  {number} x Mouse x
     * @param  {number} y Mouse y
     * @param  {boolean} confine Whether confine tooltip content in view rect.
     * @param  {Object|<Array.<Object>} params
     * @param  {module:zrender/Element} el target element
     * @param  {module:echarts/ExtensionAPI} api
     * @return {Array.<number>}
     */
    _updatePosition: function (tooltipModel, positionExpr, x, y, content, params, el) {
        var viewWidth = this._api.getWidth();
        var viewHeight = this._api.getHeight();
        positionExpr = positionExpr || tooltipModel.get('position');

        var contentSize = content.getSize();
        var align = tooltipModel.get('align');
        var vAlign = tooltipModel.get('verticalAlign');
        var rect = el && el.getBoundingRect().clone();
        el && rect.applyTransform(el.transform);

        if (typeof positionExpr === 'function') {
            // Callback of position can be an array or a string specify the position
            positionExpr = positionExpr([x, y], params, content.el, rect, {
                viewSize: [viewWidth, viewHeight],
                contentSize: contentSize.slice()
            });
        }

        if (isArray(positionExpr)) {
            x = parsePercent$2(positionExpr[0], viewWidth);
            y = parsePercent$2(positionExpr[1], viewHeight);
        }
        else if (isObject$1(positionExpr)) {
            positionExpr.width = contentSize[0];
            positionExpr.height = contentSize[1];
            var layoutRect = getLayoutRect(
                positionExpr, {width: viewWidth, height: viewHeight}
            );
            x = layoutRect.x;
            y = layoutRect.y;
            align = null;
            // When positionExpr is left/top/right/bottom,
            // align and verticalAlign will not work.
            vAlign = null;
        }
        // Specify tooltip position by string 'top' 'bottom' 'left' 'right' around graphic element
        else if (typeof positionExpr === 'string' && el) {
            var pos = calcTooltipPosition(
                positionExpr, rect, contentSize
            );
            x = pos[0];
            y = pos[1];
        }
        else {
            var pos = refixTooltipPosition(
                x, y, content.el, viewWidth, viewHeight, align ? null : 20, vAlign ? null : 20
            );
            x = pos[0];
            y = pos[1];
        }

        align && (x -= isCenterAlign(align) ? contentSize[0] / 2 : align === 'right' ? contentSize[0] : 0);
        vAlign && (y -= isCenterAlign(vAlign) ? contentSize[1] / 2 : vAlign === 'bottom' ? contentSize[1] : 0);

        if (tooltipModel.get('confine')) {
            var pos = confineTooltipPosition(
                x, y, content.el, viewWidth, viewHeight
            );
            x = pos[0];
            y = pos[1];
        }

        content.moveTo(x, y);
    },

    // FIXME
    // Should we remove this but leave this to user?
    _updateContentNotChangedOnAxis: function (dataByCoordSys) {
        var lastCoordSys = this._lastDataByCoordSys;
        var contentNotChanged = !!lastCoordSys
            && lastCoordSys.length === dataByCoordSys.length;

        contentNotChanged && each$18(lastCoordSys, function (lastItemCoordSys, indexCoordSys) {
            var lastDataByAxis = lastItemCoordSys.dataByAxis || {};
            var thisItemCoordSys = dataByCoordSys[indexCoordSys] || {};
            var thisDataByAxis = thisItemCoordSys.dataByAxis || [];
            contentNotChanged &= lastDataByAxis.length === thisDataByAxis.length;

            contentNotChanged && each$18(lastDataByAxis, function (lastItem, indexAxis) {
                var thisItem = thisDataByAxis[indexAxis] || {};
                var lastIndices = lastItem.seriesDataIndices || [];
                var newIndices = thisItem.seriesDataIndices || [];

                contentNotChanged &=
                    lastItem.value === thisItem.value
                    && lastItem.axisType === thisItem.axisType
                    && lastItem.axisId === thisItem.axisId
                    && lastIndices.length === newIndices.length;

                contentNotChanged && each$18(lastIndices, function (lastIdxItem, j) {
                    var newIdxItem = newIndices[j];
                    contentNotChanged &=
                        lastIdxItem.seriesIndex === newIdxItem.seriesIndex
                        && lastIdxItem.dataIndex === newIdxItem.dataIndex;
                });
            });
        });

        this._lastDataByCoordSys = dataByCoordSys;

        return !!contentNotChanged;
    },

    _hide: function (dispatchAction) {
        // Do not directly hideLater here, because this behavior may be prevented
        // in dispatchAction when showTip is dispatched.

        // FIXME
        // duplicated hideTip if manuallyHideTip is called from dispatchAction.
        this._lastDataByCoordSys = null;
        dispatchAction({
            type: 'hideTip',
            from: this.uid
        });
    },

    dispose: function (ecModel, api) {
        if (env$1.node) {
            return;
        }
        this._tooltipContent.hide();
        unregister('itemTooltip', api);
    }
});


/**
 * @param {Array.<Object|module:echarts/model/Model>} modelCascade
 * From top to bottom. (the last one should be globalTooltipModel);
 */
function buildTooltipModel(modelCascade) {
    var resultModel = modelCascade.pop();
    while (modelCascade.length) {
        var tooltipOpt = modelCascade.pop();
        if (tooltipOpt) {
            if (Model.isInstance(tooltipOpt)) {
                tooltipOpt = tooltipOpt.get('tooltip', true);
            }
            // In each data item tooltip can be simply write:
            // {
            //  value: 10,
            //  tooltip: 'Something you need to know'
            // }
            if (typeof tooltipOpt === 'string') {
                tooltipOpt = {formatter: tooltipOpt};
            }
            resultModel = new Model(tooltipOpt, resultModel, resultModel.ecModel);
        }
    }
    return resultModel;
}

function makeDispatchAction$1(payload, api) {
    return payload.dispatchAction || bind(api.dispatchAction, api);
}

function refixTooltipPosition(x, y, el, viewWidth, viewHeight, gapH, gapV) {
    var size = getOuterSize(el);
    var width = size.width;
    var height = size.height;

    if (gapH != null) {
        if (x + width + gapH > viewWidth) {
            x -= width + gapH;
        }
        else {
            x += gapH;
        }
    }
    if (gapV != null) {
        if (y + height + gapV > viewHeight) {
            y -= height + gapV;
        }
        else {
            y += gapV;
        }
    }
    return [x, y];
}

function confineTooltipPosition(x, y, el, viewWidth, viewHeight) {
    var size = getOuterSize(el);
    var width = size.width;
    var height = size.height;

    x = Math.min(x + width, viewWidth) - width;
    y = Math.min(y + height, viewHeight) - height;
    x = Math.max(x, 0);
    y = Math.max(y, 0);

    return [x, y];
}

function getOuterSize(el) {
    var width = el.clientWidth;
    var height = el.clientHeight;

    // Consider browser compatibility.
    // IE8 does not support getComputedStyle.
    if (document.defaultView && document.defaultView.getComputedStyle) {
        var stl = document.defaultView.getComputedStyle(el);
        if (stl) {
            width += parseInt(stl.paddingLeft, 10) + parseInt(stl.paddingRight, 10)
                + parseInt(stl.borderLeftWidth, 10) + parseInt(stl.borderRightWidth, 10);
            height += parseInt(stl.paddingTop, 10) + parseInt(stl.paddingBottom, 10)
                + parseInt(stl.borderTopWidth, 10) + parseInt(stl.borderBottomWidth, 10);
        }
    }

    return {width: width, height: height};
}

function calcTooltipPosition(position, rect, contentSize) {
    var domWidth = contentSize[0];
    var domHeight = contentSize[1];
    var gap = 5;
    var x = 0;
    var y = 0;
    var rectWidth = rect.width;
    var rectHeight = rect.height;
    switch (position) {
        case 'inside':
            x = rect.x + rectWidth / 2 - domWidth / 2;
            y = rect.y + rectHeight / 2 - domHeight / 2;
            break;
        case 'top':
            x = rect.x + rectWidth / 2 - domWidth / 2;
            y = rect.y - domHeight - gap;
            break;
        case 'bottom':
            x = rect.x + rectWidth / 2 - domWidth / 2;
            y = rect.y + rectHeight + gap;
            break;
        case 'left':
            x = rect.x - domWidth - gap;
            y = rect.y + rectHeight / 2 - domHeight / 2;
            break;
        case 'right':
            x = rect.x + rectWidth + gap;
            y = rect.y + rectHeight / 2 - domHeight / 2;
    }
    return [x, y];
}

function isCenterAlign(align) {
    return align === 'center' || align === 'middle';
}

// FIXME Better way to pack data in graphic element

/**
 * @action
 * @property {string} type
 * @property {number} seriesIndex
 * @property {number} dataIndex
 * @property {number} [x]
 * @property {number} [y]
 */
registerAction(
    {
        type: 'showTip',
        event: 'showTip',
        update: 'tooltip:manuallyShowTip'
    },
    // noop
    function () {}
);

registerAction(
    {
        type: 'hideTip',
        event: 'hideTip',
        update: 'tooltip:manuallyHideTip'
    },
    // noop
    function () {}
);

function getSeriesStackId$1(seriesModel) {
    return seriesModel.get('stack')
        || '__ec_stack_' + seriesModel.seriesIndex;
}

function getAxisKey$1(axis) {
    return axis.dim;
}

/**
 * @param {string} seriesType
 * @param {module:echarts/model/Global} ecModel
 * @param {module:echarts/ExtensionAPI} api
 */
function barLayoutPolar(seriesType, ecModel, api) {

    var width = api.getWidth();
    var height = api.getHeight();

    var lastStackCoords = {};

    var barWidthAndOffset = calRadialBar(
        filter(
            ecModel.getSeriesByType(seriesType),
            function (seriesModel) {
                return !ecModel.isSeriesFiltered(seriesModel)
                    && seriesModel.coordinateSystem
                    && seriesModel.coordinateSystem.type === 'polar';
            }
        )
    );

    ecModel.eachSeriesByType(seriesType, function (seriesModel) {
        // Check series coordinate, do layout for polar only
        if (seriesModel.coordinateSystem.type !== 'polar') {
            return;
        }

        var data = seriesModel.getData();
        var polar = seriesModel.coordinateSystem;
        var baseAxis = polar.getBaseAxis();

        var stackId = getSeriesStackId$1(seriesModel);
        var columnLayoutInfo
            = barWidthAndOffset[getAxisKey$1(baseAxis)][stackId];
        var columnOffset = columnLayoutInfo.offset;
        var columnWidth = columnLayoutInfo.width;
        var valueAxis = polar.getOtherAxis(baseAxis);

        var center = seriesModel.get('center') || ['50%', '50%'];
        var cx = parsePercent$1(center[0], width);
        var cy = parsePercent$1(center[1], height);

        var barMinHeight = seriesModel.get('barMinHeight') || 0;
        var barMinAngle = seriesModel.get('barMinAngle') || 0;

        lastStackCoords[stackId] = lastStackCoords[stackId] || [];

        var valueDim = data.mapDimension(valueAxis.dim);
        var baseDim = data.mapDimension(baseAxis.dim);
        var stacked = isDimensionStacked(data, valueDim, baseDim);

        var valueAxisStart = valueAxis.getExtent()[0];

        for (var idx = 0, len = data.count(); idx < len; idx++) {
            var value = data.get(valueDim, idx);
            var baseValue = data.get(baseDim, idx);

            if (isNaN(value)) {
                continue;
            }

            var sign = value >= 0 ? 'p' : 'n';
            var baseCoord = valueAxisStart;

            // Because of the barMinHeight, we can not use the value in
            // stackResultDimension directly.
            // Only ordinal axis can be stacked.
            if (stacked) {
                if (!lastStackCoords[stackId][baseValue]) {
                    lastStackCoords[stackId][baseValue] = {
                        p: valueAxisStart, // Positive stack
                        n: valueAxisStart  // Negative stack
                    };
                }
                // Should also consider #4243
                baseCoord = lastStackCoords[stackId][baseValue][sign];
            }

            var r0;
            var r;
            var startAngle;
            var endAngle;

            // radial sector
            if (valueAxis.dim === 'radius') {
                var radiusSpan = valueAxis.dataToRadius(value) - valueAxisStart;
                var angle = baseAxis.dataToAngle(baseValue);

                if (Math.abs(radiusSpan) < barMinHeight) {
                    radiusSpan = (radiusSpan < 0 ? -1 : 1) * barMinHeight;
                }

                r0 = baseCoord;
                r = baseCoord + radiusSpan;
                startAngle = angle - columnOffset;
                endAngle = startAngle - columnWidth;

                stacked && (lastStackCoords[stackId][baseValue][sign] = r);
            }
            // tangential sector
            else {
                // angleAxis must be clamped.
                var angleSpan = valueAxis.dataToAngle(value, true) - valueAxisStart;
                var radius = baseAxis.dataToRadius(baseValue);

                if (Math.abs(angleSpan) < barMinAngle) {
                    angleSpan = (angleSpan < 0 ? -1 : 1) * barMinAngle;
                }

                r0 = radius + columnOffset;
                r = r0 + columnWidth;
                startAngle = baseCoord;
                endAngle = baseCoord + angleSpan;

                // if the previous stack is at the end of the ring,
                // add a round to differentiate it from origin
                // var extent = angleAxis.getExtent();
                // var stackCoord = angle;
                // if (stackCoord === extent[0] && value > 0) {
                //     stackCoord = extent[1];
                // }
                // else if (stackCoord === extent[1] && value < 0) {
                //     stackCoord = extent[0];
                // }
                stacked && (lastStackCoords[stackId][baseValue][sign] = endAngle);
            }

            data.setItemLayout(idx, {
                cx: cx,
                cy: cy,
                r0: r0,
                r: r,
                // Consider that positive angle is anti-clockwise,
                // while positive radian of sector is clockwise
                startAngle: -startAngle * Math.PI / 180,
                endAngle: -endAngle * Math.PI / 180
            });

        }

    }, this);

}

/**
 * Calculate bar width and offset for radial bar charts
 */
function calRadialBar(barSeries, api) {
    // Columns info on each category axis. Key is polar name
    var columnsMap = {};

    each$1(barSeries, function (seriesModel, idx) {
        var data = seriesModel.getData();
        var polar = seriesModel.coordinateSystem;

        var baseAxis = polar.getBaseAxis();

        var axisExtent = baseAxis.getExtent();
        var bandWidth = baseAxis.type === 'category'
            ? baseAxis.getBandWidth()
            : (Math.abs(axisExtent[1] - axisExtent[0]) / data.count());

        var columnsOnAxis = columnsMap[getAxisKey$1(baseAxis)] || {
            bandWidth: bandWidth,
            remainedWidth: bandWidth,
            autoWidthCount: 0,
            categoryGap: '20%',
            gap: '30%',
            stacks: {}
        };
        var stacks = columnsOnAxis.stacks;
        columnsMap[getAxisKey$1(baseAxis)] = columnsOnAxis;

        var stackId = getSeriesStackId$1(seriesModel);

        if (!stacks[stackId]) {
            columnsOnAxis.autoWidthCount++;
        }
        stacks[stackId] = stacks[stackId] || {
            width: 0,
            maxWidth: 0
        };

        var barWidth = parsePercent$1(
            seriesModel.get('barWidth'),
            bandWidth
        );
        var barMaxWidth = parsePercent$1(
            seriesModel.get('barMaxWidth'),
            bandWidth
        );
        var barGap = seriesModel.get('barGap');
        var barCategoryGap = seriesModel.get('barCategoryGap');

        if (barWidth && !stacks[stackId].width) {
            barWidth = Math.min(columnsOnAxis.remainedWidth, barWidth);
            stacks[stackId].width = barWidth;
            columnsOnAxis.remainedWidth -= barWidth;
        }

        barMaxWidth && (stacks[stackId].maxWidth = barMaxWidth);
        (barGap != null) && (columnsOnAxis.gap = barGap);
        (barCategoryGap != null) && (columnsOnAxis.categoryGap = barCategoryGap);
    });


    var result = {};

    each$1(columnsMap, function (columnsOnAxis, coordSysName) {

        result[coordSysName] = {};

        var stacks = columnsOnAxis.stacks;
        var bandWidth = columnsOnAxis.bandWidth;
        var categoryGap = parsePercent$1(columnsOnAxis.categoryGap, bandWidth);
        var barGapPercent = parsePercent$1(columnsOnAxis.gap, 1);

        var remainedWidth = columnsOnAxis.remainedWidth;
        var autoWidthCount = columnsOnAxis.autoWidthCount;
        var autoWidth = (remainedWidth - categoryGap)
            / (autoWidthCount + (autoWidthCount - 1) * barGapPercent);
        autoWidth = Math.max(autoWidth, 0);

        // Find if any auto calculated bar exceeded maxBarWidth
        each$1(stacks, function (column, stack) {
            var maxWidth = column.maxWidth;
            if (maxWidth && maxWidth < autoWidth) {
                maxWidth = Math.min(maxWidth, remainedWidth);
                if (column.width) {
                    maxWidth = Math.min(maxWidth, column.width);
                }
                remainedWidth -= maxWidth;
                column.width = maxWidth;
                autoWidthCount--;
            }
        });

        // Recalculate width again
        autoWidth = (remainedWidth - categoryGap)
            / (autoWidthCount + (autoWidthCount - 1) * barGapPercent);
        autoWidth = Math.max(autoWidth, 0);

        var widthSum = 0;
        var lastColumn;
        each$1(stacks, function (column, idx) {
            if (!column.width) {
                column.width = autoWidth;
            }
            lastColumn = column;
            widthSum += column.width * (1 + barGapPercent);
        });
        if (lastColumn) {
            widthSum -= lastColumn.width * barGapPercent;
        }

        var offset = -widthSum / 2;
        each$1(stacks, function (column, stackId) {
            result[coordSysName][stackId] = result[coordSysName][stackId] || {
                offset: offset,
                width: column.width
            };

            offset += column.width * (1 + barGapPercent);
        });
    });

    return result;
}

function RadiusAxis(scale, radiusExtent) {

    Axis.call(this, 'radius', scale, radiusExtent);

    /**
     * Axis type
     *  - 'category'
     *  - 'value'
     *  - 'time'
     *  - 'log'
     * @type {string}
     */
    this.type = 'category';
}

RadiusAxis.prototype = {

    constructor: RadiusAxis,

    /**
     * @override
     */
    pointToData: function (point, clamp) {
        return this.polar.pointToData(point, clamp)[this.dim === 'radius' ? 0 : 1];
    },

    dataToRadius: Axis.prototype.dataToCoord,

    radiusToData: Axis.prototype.coordToData
};

inherits(RadiusAxis, Axis);

function AngleAxis(scale, angleExtent) {

    angleExtent = angleExtent || [0, 360];

    Axis.call(this, 'angle', scale, angleExtent);

    /**
     * Axis type
     *  - 'category'
     *  - 'value'
     *  - 'time'
     *  - 'log'
     * @type {string}
     */
    this.type = 'category';
}

AngleAxis.prototype = {

    constructor: AngleAxis,

    /**
     * @override
     */
    pointToData: function (point, clamp) {
        return this.polar.pointToData(point, clamp)[this.dim === 'radius' ? 0 : 1];
    },

    dataToAngle: Axis.prototype.dataToCoord,

    angleToData: Axis.prototype.coordToData
};

inherits(AngleAxis, Axis);

/**
 * @module echarts/coord/polar/Polar
 */

/**
 * @alias {module:echarts/coord/polar/Polar}
 * @constructor
 * @param {string} name
 */
var Polar = function (name) {

    /**
     * @type {string}
     */
    this.name = name || '';

    /**
     * x of polar center
     * @type {number}
     */
    this.cx = 0;

    /**
     * y of polar center
     * @type {number}
     */
    this.cy = 0;

    /**
     * @type {module:echarts/coord/polar/RadiusAxis}
     * @private
     */
    this._radiusAxis = new RadiusAxis();

    /**
     * @type {module:echarts/coord/polar/AngleAxis}
     * @private
     */
    this._angleAxis = new AngleAxis();

    this._radiusAxis.polar = this._angleAxis.polar = this;
};

Polar.prototype = {

    type: 'polar',

    axisPointerEnabled: true,

    constructor: Polar,

    /**
     * @param {Array.<string>}
     * @readOnly
     */
    dimensions: ['radius', 'angle'],

    /**
     * @type {module:echarts/coord/PolarModel}
     */
    model: null,

    /**
     * If contain coord
     * @param {Array.<number>} point
     * @return {boolean}
     */
    containPoint: function (point) {
        var coord = this.pointToCoord(point);
        return this._radiusAxis.contain(coord[0])
            && this._angleAxis.contain(coord[1]);
    },

    /**
     * If contain data
     * @param {Array.<number>} data
     * @return {boolean}
     */
    containData: function (data) {
        return this._radiusAxis.containData(data[0])
            && this._angleAxis.containData(data[1]);
    },

    /**
     * @param {string} dim
     * @return {module:echarts/coord/polar/AngleAxis|module:echarts/coord/polar/RadiusAxis}
     */
    getAxis: function (dim) {
        return this['_' + dim + 'Axis'];
    },

    /**
     * @return {Array.<module:echarts/coord/Axis>}
     */
    getAxes: function () {
        return [this._radiusAxis, this._angleAxis];
    },

    /**
     * Get axes by type of scale
     * @param {string} scaleType
     * @return {module:echarts/coord/polar/AngleAxis|module:echarts/coord/polar/RadiusAxis}
     */
    getAxesByScale: function (scaleType) {
        var axes = [];
        var angleAxis = this._angleAxis;
        var radiusAxis = this._radiusAxis;
        angleAxis.scale.type === scaleType && axes.push(angleAxis);
        radiusAxis.scale.type === scaleType && axes.push(radiusAxis);

        return axes;
    },

    /**
     * @return {module:echarts/coord/polar/AngleAxis}
     */
    getAngleAxis: function () {
        return this._angleAxis;
    },

    /**
     * @return {module:echarts/coord/polar/RadiusAxis}
     */
    getRadiusAxis: function () {
        return this._radiusAxis;
    },

    /**
     * @param {module:echarts/coord/polar/Axis}
     * @return {module:echarts/coord/polar/Axis}
     */
    getOtherAxis: function (axis) {
        var angleAxis = this._angleAxis;
        return axis === angleAxis ? this._radiusAxis : angleAxis;
    },

    /**
     * Base axis will be used on stacking.
     *
     * @return {module:echarts/coord/polar/Axis}
     */
    getBaseAxis: function () {
        return this.getAxesByScale('ordinal')[0]
            || this.getAxesByScale('time')[0]
            || this.getAngleAxis();
    },

    /**
     * @param {string} [dim] 'radius' or 'angle' or 'auto' or null/undefined
     * @return {Object} {baseAxes: [], otherAxes: []}
     */
    getTooltipAxes: function (dim) {
        var baseAxis = (dim != null && dim !== 'auto')
            ? this.getAxis(dim) : this.getBaseAxis();
        return {
            baseAxes: [baseAxis],
            otherAxes: [this.getOtherAxis(baseAxis)]
        };
    },

    /**
     * Convert a single data item to (x, y) point.
     * Parameter data is an array which the first element is radius and the second is angle
     * @param {Array.<number>} data
     * @param {boolean} [clamp=false]
     * @return {Array.<number>}
     */
    dataToPoint: function (data, clamp) {
        return this.coordToPoint([
            this._radiusAxis.dataToRadius(data[0], clamp),
            this._angleAxis.dataToAngle(data[1], clamp)
        ]);
    },

    /**
     * Convert a (x, y) point to data
     * @param {Array.<number>} point
     * @param {boolean} [clamp=false]
     * @return {Array.<number>}
     */
    pointToData: function (point, clamp) {
        var coord = this.pointToCoord(point);
        return [
            this._radiusAxis.radiusToData(coord[0], clamp),
            this._angleAxis.angleToData(coord[1], clamp)
        ];
    },

    /**
     * Convert a (x, y) point to (radius, angle) coord
     * @param {Array.<number>} point
     * @return {Array.<number>}
     */
    pointToCoord: function (point) {
        var dx = point[0] - this.cx;
        var dy = point[1] - this.cy;
        var angleAxis = this.getAngleAxis();
        var extent = angleAxis.getExtent();
        var minAngle = Math.min(extent[0], extent[1]);
        var maxAngle = Math.max(extent[0], extent[1]);
        // Fix fixed extent in polarCreator
        // FIXME
        angleAxis.inverse
            ? (minAngle = maxAngle - 360)
            : (maxAngle = minAngle + 360);

        var radius = Math.sqrt(dx * dx + dy * dy);
        dx /= radius;
        dy /= radius;

        var radian = Math.atan2(-dy, dx) / Math.PI * 180;

        // move to angleExtent
        var dir = radian < minAngle ? 1 : -1;
        while (radian < minAngle || radian > maxAngle) {
            radian += dir * 360;
        }

        return [radius, radian];
    },

    /**
     * Convert a (radius, angle) coord to (x, y) point
     * @param {Array.<number>} coord
     * @return {Array.<number>}
     */
    coordToPoint: function (coord) {
        var radius = coord[0];
        var radian = coord[1] / 180 * Math.PI;
        var x = Math.cos(radian) * radius + this.cx;
        // Inverse the y
        var y = -Math.sin(radian) * radius + this.cy;

        return [x, y];
    }

};

var PolarAxisModel = ComponentModel.extend({

    type: 'polarAxis',

    /**
     * @type {module:echarts/coord/polar/AngleAxis|module:echarts/coord/polar/RadiusAxis}
     */
    axis: null,

    /**
     * @override
     */
    getCoordSysModel: function () {
        return this.ecModel.queryComponents({
            mainType: 'polar',
            index: this.option.polarIndex,
            id: this.option.polarId
        })[0];
    }

});

merge(PolarAxisModel.prototype, axisModelCommonMixin);

var polarAxisDefaultExtendedOption = {
    angle: {
        // polarIndex: 0,
        // polarId: '',

        startAngle: 90,

        clockwise: true,

        splitNumber: 12,

        axisLabel: {
            rotate: false
        }
    },
    radius: {
        // polarIndex: 0,
        // polarId: '',

        splitNumber: 5
    }
};

function getAxisType$3(axisDim, option) {
    // Default axis with data is category axis
    return option.type || (option.data ? 'category' : 'value');
}

axisModelCreator('angle', PolarAxisModel, getAxisType$3, polarAxisDefaultExtendedOption.angle);
axisModelCreator('radius', PolarAxisModel, getAxisType$3, polarAxisDefaultExtendedOption.radius);

extendComponentModel({

    type: 'polar',

    dependencies: ['polarAxis', 'angleAxis'],

    /**
     * @type {module:echarts/coord/polar/Polar}
     */
    coordinateSystem: null,

    /**
     * @param {string} axisType
     * @return {module:echarts/coord/polar/AxisModel}
     */
    findAxisModel: function (axisType) {
        var foundAxisModel;
        var ecModel = this.ecModel;

        ecModel.eachComponent(axisType, function (axisModel) {
            if (axisModel.getCoordSysModel() === this) {
                foundAxisModel = axisModel;
            }
        }, this);
        return foundAxisModel;
    },

    defaultOption: {

        zlevel: 0,

        z: 0,

        center: ['50%', '50%'],

        radius: '80%'
    }
});

// TODO Axis scale

// 依赖 PolarModel 做预处理
/**
 * Resize method bound to the polar
 * @param {module:echarts/coord/polar/PolarModel} polarModel
 * @param {module:echarts/ExtensionAPI} api
 */
function resizePolar(polar, polarModel, api) {
    var center = polarModel.get('center');
    var width = api.getWidth();
    var height = api.getHeight();

    polar.cx = parsePercent$1(center[0], width);
    polar.cy = parsePercent$1(center[1], height);

    var radiusAxis = polar.getRadiusAxis();
    var size = Math.min(width, height) / 2;
    var radius = parsePercent$1(polarModel.get('radius'), size);
    radiusAxis.inverse
        ? radiusAxis.setExtent(radius, 0)
        : radiusAxis.setExtent(0, radius);
}

/**
 * Update polar
 */
function updatePolarScale(ecModel, api) {
    var polar = this;
    var angleAxis = polar.getAngleAxis();
    var radiusAxis = polar.getRadiusAxis();
    // Reset scale
    angleAxis.scale.setExtent(Infinity, -Infinity);
    radiusAxis.scale.setExtent(Infinity, -Infinity);

    ecModel.eachSeries(function (seriesModel) {
        if (seriesModel.coordinateSystem === polar) {
            var data = seriesModel.getData();
            each$1(data.mapDimension('radius', true), function (dim) {
                radiusAxis.scale.unionExtentFromData(data, dim);
            });
            each$1(data.mapDimension('angle', true), function (dim) {
                angleAxis.scale.unionExtentFromData(data, dim);
            });
        }
    });

    niceScaleExtent(angleAxis.scale, angleAxis.model);
    niceScaleExtent(radiusAxis.scale, radiusAxis.model);

    // Fix extent of category angle axis
    if (angleAxis.type === 'category' && !angleAxis.onBand) {
        var extent = angleAxis.getExtent();
        var diff = 360 / angleAxis.scale.count();
        angleAxis.inverse ? (extent[1] += diff) : (extent[1] -= diff);
        angleAxis.setExtent(extent[0], extent[1]);
    }
}

/**
 * Set common axis properties
 * @param {module:echarts/coord/polar/AngleAxis|module:echarts/coord/polar/RadiusAxis}
 * @param {module:echarts/coord/polar/AxisModel}
 * @inner
 */
function setAxis(axis, axisModel) {
    axis.type = axisModel.get('type');
    axis.scale = createScaleByModel(axisModel);
    axis.onBand = axisModel.get('boundaryGap') && axis.type === 'category';
    axis.inverse = axisModel.get('inverse');

    if (axisModel.mainType === 'angleAxis') {
        axis.inverse ^= axisModel.get('clockwise');
        var startAngle = axisModel.get('startAngle');
        axis.setExtent(startAngle, startAngle + (axis.inverse ? -360 : 360));
    }

    // Inject axis instance
    axisModel.axis = axis;
    axis.model = axisModel;
}


var polarCreator = {

    dimensions: Polar.prototype.dimensions,

    create: function (ecModel, api) {
        var polarList = [];
        ecModel.eachComponent('polar', function (polarModel, idx) {
            var polar = new Polar(idx);
            // Inject resize and update method
            polar.update = updatePolarScale;

            var radiusAxis = polar.getRadiusAxis();
            var angleAxis = polar.getAngleAxis();

            var radiusAxisModel = polarModel.findAxisModel('radiusAxis');
            var angleAxisModel = polarModel.findAxisModel('angleAxis');

            setAxis(radiusAxis, radiusAxisModel);
            setAxis(angleAxis, angleAxisModel);

            resizePolar(polar, polarModel, api);

            polarList.push(polar);

            polarModel.coordinateSystem = polar;
            polar.model = polarModel;
        });
        // Inject coordinateSystem to series
        ecModel.eachSeries(function (seriesModel) {
            if (seriesModel.get('coordinateSystem') === 'polar') {
                var polarModel = ecModel.queryComponents({
                    mainType: 'polar',
                    index: seriesModel.get('polarIndex'),
                    id: seriesModel.get('polarId')
                })[0];

                if (__DEV__) {
                    if (!polarModel) {
                        throw new Error(
                            'Polar "' + retrieve(
                                seriesModel.get('polarIndex'),
                                seriesModel.get('polarId'),
                                0
                            ) + '" not found'
                        );
                    }
                }
                seriesModel.coordinateSystem = polarModel.coordinateSystem;
            }
        });

        return polarList;
    }
};

CoordinateSystemManager.register('polar', polarCreator);

var elementList$1 = ['axisLine', 'axisLabel', 'axisTick', 'splitLine', 'splitArea'];

function getAxisLineShape(polar, rExtent, angle) {
    rExtent[1] > rExtent[0] && (rExtent = rExtent.slice().reverse());
    var start = polar.coordToPoint([rExtent[0], angle]);
    var end = polar.coordToPoint([rExtent[1], angle]);

    return {
        x1: start[0],
        y1: start[1],
        x2: end[0],
        y2: end[1]
    };
}

function getRadiusIdx(polar) {
    var radiusAxis = polar.getRadiusAxis();
    return radiusAxis.inverse ? 0 : 1;
}

AxisView.extend({

    type: 'angleAxis',

    axisPointerClass: 'PolarAxisPointer',

    render: function (angleAxisModel, ecModel) {
        this.group.removeAll();
        if (!angleAxisModel.get('show')) {
            return;
        }

        var angleAxis = angleAxisModel.axis;
        var polar = angleAxis.polar;
        var radiusExtent = polar.getRadiusAxis().getExtent();
        var ticksAngles = angleAxis.getTicksCoords();

        if (angleAxis.type !== 'category') {
            // Remove the last tick which will overlap the first tick
            ticksAngles.pop();
        }

        each$1(elementList$1, function (name) {
            if (angleAxisModel.get(name +'.show')
                && (!angleAxis.scale.isBlank() || name === 'axisLine')
            ) {
                this['_' + name](angleAxisModel, polar, ticksAngles, radiusExtent);
            }
        }, this);
    },

    /**
     * @private
     */
    _axisLine: function (angleAxisModel, polar, ticksAngles, radiusExtent) {
        var lineStyleModel = angleAxisModel.getModel('axisLine.lineStyle');

        var circle = new Circle({
            shape: {
                cx: polar.cx,
                cy: polar.cy,
                r: radiusExtent[getRadiusIdx(polar)]
            },
            style: lineStyleModel.getLineStyle(),
            z2: 1,
            silent: true
        });
        circle.style.fill = null;

        this.group.add(circle);
    },

    /**
     * @private
     */
    _axisTick: function (angleAxisModel, polar, ticksAngles, radiusExtent) {
        var tickModel = angleAxisModel.getModel('axisTick');

        var tickLen = (tickModel.get('inside') ? -1 : 1) * tickModel.get('length');
        var radius = radiusExtent[getRadiusIdx(polar)];

        var lines = map(ticksAngles, function (tickAngle) {
            return new Line({
                shape: getAxisLineShape(polar, [radius, radius + tickLen], tickAngle)
            });
        });
        this.group.add(mergePath(
            lines, {
                style: defaults(
                    tickModel.getModel('lineStyle').getLineStyle(),
                    {
                        stroke: angleAxisModel.get('axisLine.lineStyle.color')
                    }
                )
            }
        ));
    },

    /**
     * @private
     */
    _axisLabel: function (angleAxisModel, polar, ticksAngles, radiusExtent) {
        var axis = angleAxisModel.axis;

        var categoryData = angleAxisModel.getCategories();

        var labelModel = angleAxisModel.getModel('axisLabel');
        var labels = angleAxisModel.getFormattedLabels();

        var labelMargin = labelModel.get('margin');
        var labelsAngles = axis.getLabelsCoords();

        // Use length of ticksAngles because it may remove the last tick to avoid overlapping
        for (var i = 0; i < ticksAngles.length; i++) {
            var r = radiusExtent[getRadiusIdx(polar)];
            var p = polar.coordToPoint([r + labelMargin, labelsAngles[i]]);
            var cx = polar.cx;
            var cy = polar.cy;

            var labelTextAlign = Math.abs(p[0] - cx) / r < 0.3
                ? 'center' : (p[0] > cx ? 'left' : 'right');
            var labelTextVerticalAlign = Math.abs(p[1] - cy) / r < 0.3
                ? 'middle' : (p[1] > cy ? 'top' : 'bottom');

            if (categoryData && categoryData[i] && categoryData[i].textStyle) {
                labelModel = new Model(categoryData[i].textStyle, labelModel, labelModel.ecModel);
            }

            var textEl = new Text({silent: true});
            this.group.add(textEl);
            setTextStyle(textEl.style, labelModel, {
                x: p[0],
                y: p[1],
                textFill: labelModel.getTextColor() || angleAxisModel.get('axisLine.lineStyle.color'),
                text: labels[i],
                textAlign: labelTextAlign,
                textVerticalAlign: labelTextVerticalAlign
            });
        }
    },

    /**
     * @private
     */
    _splitLine: function (angleAxisModel, polar, ticksAngles, radiusExtent) {
        var splitLineModel = angleAxisModel.getModel('splitLine');
        var lineStyleModel = splitLineModel.getModel('lineStyle');
        var lineColors = lineStyleModel.get('color');
        var lineCount = 0;

        lineColors = lineColors instanceof Array ? lineColors : [lineColors];

        var splitLines = [];

        for (var i = 0; i < ticksAngles.length; i++) {
            var colorIndex = (lineCount++) % lineColors.length;
            splitLines[colorIndex] = splitLines[colorIndex] || [];
            splitLines[colorIndex].push(new Line({
                shape: getAxisLineShape(polar, radiusExtent, ticksAngles[i])
            }));
        }

        // Simple optimization
        // Batching the lines if color are the same
        for (var i = 0; i < splitLines.length; i++) {
            this.group.add(mergePath(splitLines[i], {
                style: defaults({
                    stroke: lineColors[i % lineColors.length]
                }, lineStyleModel.getLineStyle()),
                silent: true,
                z: angleAxisModel.get('z')
            }));
        }
    },

    /**
     * @private
     */
    _splitArea: function (angleAxisModel, polar, ticksAngles, radiusExtent) {

        var splitAreaModel = angleAxisModel.getModel('splitArea');
        var areaStyleModel = splitAreaModel.getModel('areaStyle');
        var areaColors = areaStyleModel.get('color');
        var lineCount = 0;

        areaColors = areaColors instanceof Array ? areaColors : [areaColors];

        var splitAreas = [];

        var RADIAN = Math.PI / 180;
        var prevAngle = -ticksAngles[0] * RADIAN;
        var r0 = Math.min(radiusExtent[0], radiusExtent[1]);
        var r1 = Math.max(radiusExtent[0], radiusExtent[1]);

        var clockwise = angleAxisModel.get('clockwise');

        for (var i = 1; i < ticksAngles.length; i++) {
            var colorIndex = (lineCount++) % areaColors.length;
            splitAreas[colorIndex] = splitAreas[colorIndex] || [];
            splitAreas[colorIndex].push(new Sector({
                shape: {
                    cx: polar.cx,
                    cy: polar.cy,
                    r0: r0,
                    r: r1,
                    startAngle: prevAngle,
                    endAngle: -ticksAngles[i] * RADIAN,
                    clockwise: clockwise
                },
                silent: true
            }));
            prevAngle = -ticksAngles[i] * RADIAN;
        }

        // Simple optimization
        // Batching the lines if color are the same
        for (var i = 0; i < splitAreas.length; i++) {
            this.group.add(mergePath(splitAreas[i], {
                style: defaults({
                    fill: areaColors[i % areaColors.length]
                }, areaStyleModel.getAreaStyle()),
                silent: true
            }));
        }
    }
});

var axisBuilderAttrs$3 = [
    'axisLine', 'axisTickLabel', 'axisName'
];
var selfBuilderAttrs$1 = [
    'splitLine', 'splitArea'
];

AxisView.extend({

    type: 'radiusAxis',

    axisPointerClass: 'PolarAxisPointer',

    render: function (radiusAxisModel, ecModel) {
        this.group.removeAll();
        if (!radiusAxisModel.get('show')) {
            return;
        }
        var radiusAxis = radiusAxisModel.axis;
        var polar = radiusAxis.polar;
        var angleAxis = polar.getAngleAxis();
        var ticksCoords = radiusAxis.getTicksCoords();
        var axisAngle = angleAxis.getExtent()[0];
        var radiusExtent = radiusAxis.getExtent();

        var layout = layoutAxis(polar, radiusAxisModel, axisAngle);
        var axisBuilder = new AxisBuilder(radiusAxisModel, layout);
        each$1(axisBuilderAttrs$3, axisBuilder.add, axisBuilder);
        this.group.add(axisBuilder.getGroup());

        each$1(selfBuilderAttrs$1, function (name) {
            if (radiusAxisModel.get(name +'.show') && !radiusAxis.scale.isBlank()) {
                this['_' + name](radiusAxisModel, polar, axisAngle, radiusExtent, ticksCoords);
            }
        }, this);
    },

    /**
     * @private
     */
    _splitLine: function (radiusAxisModel, polar, axisAngle, radiusExtent, ticksCoords) {
        var splitLineModel = radiusAxisModel.getModel('splitLine');
        var lineStyleModel = splitLineModel.getModel('lineStyle');
        var lineColors = lineStyleModel.get('color');
        var lineCount = 0;

        lineColors = lineColors instanceof Array ? lineColors : [lineColors];

        var splitLines = [];

        for (var i = 0; i < ticksCoords.length; i++) {
            var colorIndex = (lineCount++) % lineColors.length;
            splitLines[colorIndex] = splitLines[colorIndex] || [];
            splitLines[colorIndex].push(new Circle({
                shape: {
                    cx: polar.cx,
                    cy: polar.cy,
                    r: ticksCoords[i]
                },
                silent: true
            }));
        }

        // Simple optimization
        // Batching the lines if color are the same
        for (var i = 0; i < splitLines.length; i++) {
            this.group.add(mergePath(splitLines[i], {
                style: defaults({
                    stroke: lineColors[i % lineColors.length],
                    fill: null
                }, lineStyleModel.getLineStyle()),
                silent: true
            }));
        }
    },

    /**
     * @private
     */
    _splitArea: function (radiusAxisModel, polar, axisAngle, radiusExtent, ticksCoords) {

        var splitAreaModel = radiusAxisModel.getModel('splitArea');
        var areaStyleModel = splitAreaModel.getModel('areaStyle');
        var areaColors = areaStyleModel.get('color');
        var lineCount = 0;

        areaColors = areaColors instanceof Array ? areaColors : [areaColors];

        var splitAreas = [];

        var prevRadius = ticksCoords[0];
        for (var i = 1; i < ticksCoords.length; i++) {
            var colorIndex = (lineCount++) % areaColors.length;
            splitAreas[colorIndex] = splitAreas[colorIndex] || [];
            splitAreas[colorIndex].push(new Sector({
                shape: {
                    cx: polar.cx,
                    cy: polar.cy,
                    r0: prevRadius,
                    r: ticksCoords[i],
                    startAngle: 0,
                    endAngle: Math.PI * 2
                },
                silent: true
            }));
            prevRadius = ticksCoords[i];
        }

        // Simple optimization
        // Batching the lines if color are the same
        for (var i = 0; i < splitAreas.length; i++) {
            this.group.add(mergePath(splitAreas[i], {
                style: defaults({
                    fill: areaColors[i % areaColors.length]
                }, areaStyleModel.getAreaStyle()),
                silent: true
            }));
        }
    }
});

/**
 * @inner
 */
function layoutAxis(polar, radiusAxisModel, axisAngle) {
    return {
        position: [polar.cx, polar.cy],
        rotation: axisAngle / 180 * Math.PI,
        labelDirection: -1,
        tickDirection: -1,
        nameDirection: 1,
        labelRotate: radiusAxisModel.getModel('axisLabel').get('rotate'),
        // Over splitLine and splitArea
        z2: 1
    };
}

var PolarAxisPointer = BaseAxisPointer.extend({

    /**
     * @override
     */
    makeElOption: function (elOption, value, axisModel, axisPointerModel, api) {
        var axis = axisModel.axis;

        if (axis.dim === 'angle') {
            this.animationThreshold = Math.PI / 18;
        }

        var polar = axis.polar;
        var otherAxis = polar.getOtherAxis(axis);
        var otherExtent = otherAxis.getExtent();

        var coordValue;
        coordValue = axis['dataTo' + capitalFirst(axis.dim)](value);

        var axisPointerType = axisPointerModel.get('type');
        if (axisPointerType && axisPointerType !== 'none') {
            var elStyle = buildElStyle(axisPointerModel);
            var pointerOption = pointerShapeBuilder$2[axisPointerType](
                axis, polar, coordValue, otherExtent, elStyle
            );
            pointerOption.style = elStyle;
            elOption.graphicKey = pointerOption.type;
            elOption.pointer = pointerOption;
        }

        var labelMargin = axisPointerModel.get('label.margin');
        var labelPos = getLabelPosition(value, axisModel, axisPointerModel, polar, labelMargin);
        buildLabelElOption(elOption, axisModel, axisPointerModel, api, labelPos);
    }

    // Do not support handle, utill any user requires it.

});

function getLabelPosition(value, axisModel, axisPointerModel, polar, labelMargin) {
    var axis = axisModel.axis;
    var coord = axis.dataToCoord(value);
    var axisAngle = polar.getAngleAxis().getExtent()[0];
    axisAngle = axisAngle / 180 * Math.PI;
    var radiusExtent = polar.getRadiusAxis().getExtent();
    var position;
    var align;
    var verticalAlign;

    if (axis.dim === 'radius') {
        var transform = create$1();
        rotate(transform, transform, axisAngle);
        translate(transform, transform, [polar.cx, polar.cy]);
        position = applyTransform$1([coord, -labelMargin], transform);

        var labelRotation = axisModel.getModel('axisLabel').get('rotate') || 0;
        var labelLayout = AxisBuilder.innerTextLayout(
            axisAngle, labelRotation * Math.PI / 180, -1
        );
        align = labelLayout.textAlign;
        verticalAlign = labelLayout.textVerticalAlign;
    }
    else { // angle axis
        var r = radiusExtent[1];
        position = polar.coordToPoint([r + labelMargin, coord]);
        var cx = polar.cx;
        var cy = polar.cy;
        align = Math.abs(position[0] - cx) / r < 0.3
            ? 'center' : (position[0] > cx ? 'left' : 'right');
        verticalAlign = Math.abs(position[1] - cy) / r < 0.3
            ? 'middle' : (position[1] > cy ? 'top' : 'bottom');
    }

    return {
        position: position,
        align: align,
        verticalAlign: verticalAlign
    };
}


var pointerShapeBuilder$2 = {

    line: function (axis, polar, coordValue, otherExtent, elStyle) {
        return axis.dim === 'angle'
            ? {
                type: 'Line',
                shape: makeLineShape(
                    polar.coordToPoint([otherExtent[0], coordValue]),
                    polar.coordToPoint([otherExtent[1], coordValue])
                )
            }
            : {
                type: 'Circle',
                shape: {
                    cx: polar.cx,
                    cy: polar.cy,
                    r: coordValue
                }
            };
    },

    shadow: function (axis, polar, coordValue, otherExtent, elStyle) {
        var bandWidth = axis.getBandWidth();
        var radian = Math.PI / 180;

        return axis.dim === 'angle'
            ? {
                type: 'Sector',
                shape: makeSectorShape(
                    polar.cx, polar.cy,
                    otherExtent[0], otherExtent[1],
                    // In ECharts y is negative if angle is positive
                    (-coordValue - bandWidth / 2) * radian,
                    (-coordValue + bandWidth / 2) * radian
                )
            }
            : {
                type: 'Sector',
                shape: makeSectorShape(
                    polar.cx, polar.cy,
                    coordValue - bandWidth / 2,
                    coordValue + bandWidth / 2,
                    0, Math.PI * 2
                )
            };
    }
};

AxisView.registerAxisPointerClass('PolarAxisPointer', PolarAxisPointer);

// For reducing size of echarts.min, barLayoutPolar is required by polar.
registerLayout(curry(barLayoutPolar, 'bar'));

// Polar view
extendComponentView({
    type: 'polar'
});

var GeoModel = ComponentModel.extend({

    type: 'geo',

    /**
     * @type {module:echarts/coord/geo/Geo}
     */
    coordinateSystem: null,

    layoutMode: 'box',

    init: function (option) {
        ComponentModel.prototype.init.apply(this, arguments);

        // Default label emphasis `show`
        defaultEmphasis(option, 'label', ['show']);
    },

    optionUpdated: function () {
        var option = this.option;
        var self = this;

        option.regions = geoCreator.getFilledRegions(option.regions, option.map, option.nameMap);

        this._optionModelMap = reduce(option.regions || [], function (optionModelMap, regionOpt) {
            if (regionOpt.name) {
                optionModelMap.set(regionOpt.name, new Model(regionOpt, self));
            }
            return optionModelMap;
        }, createHashMap());

        this.updateSelectedMap(option.regions);
    },

    defaultOption: {

        zlevel: 0,

        z: 0,

        show: true,

        left: 'center',

        top: 'center',


        // width:,
        // height:,
        // right
        // bottom

        // Aspect is width / height. Inited to be geoJson bbox aspect
        // This parameter is used for scale this aspect
        aspectScale: 0.75,

        ///// Layout with center and size
        // If you wan't to put map in a fixed size box with right aspect ratio
        // This two properties may more conveninet
        // layoutCenter: [50%, 50%]
        // layoutSize: 100


        silent: false,

        // Map type
        map: '',

        // Define left-top, right-bottom coords to control view
        // For example, [ [180, 90], [-180, -90] ]
        boundingCoords: null,

        // Default on center of map
        center: null,

        zoom: 1,

        scaleLimit: null,

        // selectedMode: false

        label: {
            show: false,
            color: '#000'
        },

        itemStyle: {
            // color: 各异,
            borderWidth: 0.5,
            borderColor: '#444',
            color: '#eee'
        },

        emphasis: {
            label: {
                show: true,
                color: 'rgb(100,0,0)'
            },
            itemStyle: {
                color: 'rgba(255,215,0,0.8)'
            }
        },

        regions: []
    },

    /**
     * Get model of region
     * @param  {string} name
     * @return {module:echarts/model/Model}
     */
    getRegionModel: function (name) {
        return this._optionModelMap.get(name) || new Model(null, this, this.ecModel);
    },

    /**
     * Format label
     * @param {string} name Region name
     * @param {string} [status='normal'] 'normal' or 'emphasis'
     * @return {string}
     */
    getFormattedLabel: function (name, status) {
        var regionModel = this.getRegionModel(name);
        var formatter = regionModel.get('label.' + status + '.formatter');
        var params = {
            name: name
        };
        if (typeof formatter === 'function') {
            params.status = status;
            return formatter(params);
        }
        else if (typeof formatter === 'string') {
            return formatter.replace('{a}', name != null ? name : '');
        }
    },

    setZoom: function (zoom) {
        this.option.zoom = zoom;
    },

    setCenter: function (center) {
        this.option.center = center;
    }
});

mixin(GeoModel, selectableMixin);

extendComponentView({

    type: 'geo',

    init: function (ecModel, api) {
        var mapDraw = new MapDraw(api, true);
        this._mapDraw = mapDraw;

        this.group.add(mapDraw.group);
    },

    render: function (geoModel, ecModel, api, payload) {
        // Not render if it is an toggleSelect action from self
        if (payload && payload.type === 'geoToggleSelect'
            && payload.from === this.uid
        ) {
            return;
        }

        var mapDraw = this._mapDraw;
        if (geoModel.get('show')) {
            mapDraw.draw(geoModel, ecModel, api, this, payload);
        }
        else {
            this._mapDraw.group.removeAll();
        }

        this.group.silent = geoModel.get('silent');
    },

    dispose: function () {
        this._mapDraw && this._mapDraw.remove();
    }

});

function makeAction(method, actionInfo) {
    actionInfo.update = 'updateView';
    registerAction(actionInfo, function (payload, ecModel) {
        var selected = {};

        ecModel.eachComponent(
            { mainType: 'geo', query: payload},
            function (geoModel) {
                geoModel[method](payload.name);
                var geo = geoModel.coordinateSystem;
                each$1(geo.regions, function (region) {
                    selected[region.name] = geoModel.isSelected(region.name) || false;
                });
            }
        );

        return {
            selected: selected,
            name: payload.name
        };
    });
}

makeAction('toggleSelected', {
    type: 'geoToggleSelect',
    event: 'geoselectchanged'
});
makeAction('select', {
    type: 'geoSelect',
    event: 'geoselected'
});
makeAction('unSelect', {
    type: 'geoUnSelect',
    event: 'geounselected'
});

var DEFAULT_TOOLBOX_BTNS = ['rect', 'polygon', 'keep', 'clear'];

var preprocessor$1 = function (option, isNew) {
    var brushComponents = option && option.brush;
    if (!isArray(brushComponents)) {
        brushComponents = brushComponents ? [brushComponents] : [];
    }

    if (!brushComponents.length) {
        return;
    }

    var brushComponentSpecifiedBtns = [];

    each$1(brushComponents, function (brushOpt) {
        var tbs = brushOpt.hasOwnProperty('toolbox')
            ? brushOpt.toolbox : [];

        if (tbs instanceof Array) {
            brushComponentSpecifiedBtns = brushComponentSpecifiedBtns.concat(tbs);
        }
    });

    var toolbox = option && option.toolbox;

    if (isArray(toolbox)) {
        toolbox = toolbox[0];
    }
    if (!toolbox) {
        toolbox = {feature: {}};
        option.toolbox = [toolbox];
    }

    var toolboxFeature = (toolbox.feature || (toolbox.feature = {}));
    var toolboxBrush = toolboxFeature.brush || (toolboxFeature.brush = {});
    var brushTypes = toolboxBrush.type || (toolboxBrush.type = []);

    brushTypes.push.apply(brushTypes, brushComponentSpecifiedBtns);

    removeDuplicate(brushTypes);

    if (isNew && !brushTypes.length) {
        brushTypes.push.apply(brushTypes, DEFAULT_TOOLBOX_BTNS);
    }
};

function removeDuplicate(arr) {
    var map$$1 = {};
    each$1(arr, function (val) {
        map$$1[val] = 1;
    });
    arr.length = 0;
    each$1(map$$1, function (flag, val) {
        arr.push(val);
    });
}

/**
 * @file Visual solution, for consistent option specification.
 */

var each$20 = each$1;

function hasKeys(obj) {
    if (obj) {
        for (var name in obj){
            if (obj.hasOwnProperty(name)) {
                return true;
            }
        }
    }
}

/**
 * @param {Object} option
 * @param {Array.<string>} stateList
 * @param {Function} [supplementVisualOption]
 * @return {Object} visualMappings <state, <visualType, module:echarts/visual/VisualMapping>>
 */
function createVisualMappings(option, stateList, supplementVisualOption) {
    var visualMappings = {};

    each$20(stateList, function (state) {
        var mappings = visualMappings[state] = createMappings();

        each$20(option[state], function (visualData, visualType) {
            if (!VisualMapping.isValidType(visualType)) {
                return;
            }
            var mappingOption = {
                type: visualType,
                visual: visualData
            };
            supplementVisualOption && supplementVisualOption(mappingOption, state);
            mappings[visualType] = new VisualMapping(mappingOption);

            // Prepare a alpha for opacity, for some case that opacity
            // is not supported, such as rendering using gradient color.
            if (visualType === 'opacity') {
                mappingOption = clone(mappingOption);
                mappingOption.type = 'colorAlpha';
                mappings.__hidden.__alphaForOpacity = new VisualMapping(mappingOption);
            }
        });
    });

    return visualMappings;

    function createMappings() {
        var Creater = function () {};
        // Make sure hidden fields will not be visited by
        // object iteration (with hasOwnProperty checking).
        Creater.prototype.__hidden = Creater.prototype;
        var obj = new Creater();
        return obj;
    }
}

/**
 * @param {Object} thisOption
 * @param {Object} newOption
 * @param {Array.<string>} keys
 */
function replaceVisualOption(thisOption, newOption, keys) {
    // Visual attributes merge is not supported, otherwise it
    // brings overcomplicated merge logic. See #2853. So if
    // newOption has anyone of these keys, all of these keys
    // will be reset. Otherwise, all keys remain.
    var has;
    each$1(keys, function (key) {
        if (newOption.hasOwnProperty(key) && hasKeys(newOption[key])) {
            has = true;
        }
    });
    has && each$1(keys, function (key) {
        if (newOption.hasOwnProperty(key) && hasKeys(newOption[key])) {
            thisOption[key] = clone(newOption[key]);
        }
        else {
            delete thisOption[key];
        }
    });
}

/**
 * @param {Array.<string>} stateList
 * @param {Object} visualMappings <state, Object.<visualType, module:echarts/visual/VisualMapping>>
 * @param {module:echarts/data/List} list
 * @param {Function} getValueState param: valueOrIndex, return: state.
 * @param {object} [scope] Scope for getValueState
 * @param {string} [dimension] Concrete dimension, if used.
 */
// ???! handle brush?
function applyVisual(stateList, visualMappings, data, getValueState, scope, dimension) {
    var visualTypesMap = {};
    each$1(stateList, function (state) {
        var visualTypes = VisualMapping.prepareVisualTypes(visualMappings[state]);
        visualTypesMap[state] = visualTypes;
    });

    var dataIndex;

    function getVisual(key) {
        return data.getItemVisual(dataIndex, key);
    }

    function setVisual(key, value) {
        data.setItemVisual(dataIndex, key, value);
    }

    if (dimension == null) {
        data.each(eachItem);
    }
    else {
        data.each([dimension], eachItem);
    }

    function eachItem(valueOrIndex, index) {
        dataIndex = dimension == null ? valueOrIndex : index;

        var rawDataItem = data.getRawDataItem(dataIndex);
        // Consider performance
        if (rawDataItem && rawDataItem.visualMap === false) {
            return;
        }

        var valueState = getValueState.call(scope, valueOrIndex);
        var mappings = visualMappings[valueState];
        var visualTypes = visualTypesMap[valueState];

        for (var i = 0, len = visualTypes.length; i < len; i++) {
            var type = visualTypes[i];
            mappings[type] && mappings[type].applyVisual(
                valueOrIndex, getVisual, setVisual
            );
        }
    }
}

/**
 * @param {module:echarts/data/List} data
 * @param {Array.<string>} stateList
 * @param {Object} visualMappings <state, Object.<visualType, module:echarts/visual/VisualMapping>>
 * @param {Function} getValueState param: valueOrIndex, return: state.
 * @param {number} [dim] dimension or dimension index.
 */
function incrementalApplyVisual(stateList, visualMappings, getValueState, dim) {
    var visualTypesMap = {};
    each$1(stateList, function (state) {
        var visualTypes = VisualMapping.prepareVisualTypes(visualMappings[state]);
        visualTypesMap[state] = visualTypes;
    });

    function progress(params, data) {
        if (dim != null) {
            dim = data.getDimension(dim);
        }

        function getVisual(key) {
            return data.getItemVisual(dataIndex, key);
        }

        function setVisual(key, value) {
            data.setItemVisual(dataIndex, key, value);
        }

        for (var dataIndex = params.start; dataIndex < params.end; dataIndex++) {
            var rawDataItem = data.getRawDataItem(dataIndex);

            // Consider performance
            if (rawDataItem && rawDataItem.visualMap === false) {
                return;
            }

            var value = dim != null
                ? data.get(dim, dataIndex, true)
                : dataIndex;

            var valueState = getValueState(value);
            var mappings = visualMappings[valueState];
            var visualTypes = visualTypesMap[valueState];

            for (var i = 0, len = visualTypes.length; i < len; i++) {
                var type = visualTypes[i];
                mappings[type] && mappings[type].applyVisual(value, getVisual, setVisual);
            }
        }
    }

    return {progress: progress};
}

// Key of the first level is brushType: `line`, `rect`, `polygon`.
// Key of the second level is chart element type: `point`, `rect`.
// See moudule:echarts/component/helper/BrushController
// function param:
//      {Object} itemLayout fetch from data.getItemLayout(dataIndex)
//      {Object} selectors {point: selector, rect: selector, ...}
//      {Object} area {range: [[], [], ..], boudingRect}
// function return:
//      {boolean} Whether in the given brush.
var selector = {
    lineX: getLineSelectors(0),
    lineY: getLineSelectors(1),
    rect: {
        point: function (itemLayout, selectors, area) {
            return itemLayout && area.boundingRect.contain(itemLayout[0], itemLayout[1]);
        },
        rect: function (itemLayout, selectors, area) {
            return itemLayout && area.boundingRect.intersect(itemLayout);
        }
    },
    polygon: {
        point: function (itemLayout, selectors, area) {
            return itemLayout
                && area.boundingRect.contain(itemLayout[0], itemLayout[1])
                && contain$1(area.range, itemLayout[0], itemLayout[1]);
        },
        rect: function (itemLayout, selectors, area) {
            var points = area.range;

            if (!itemLayout || points.length <= 1) {
                return false;
            }

            var x = itemLayout.x;
            var y = itemLayout.y;
            var width = itemLayout.width;
            var height = itemLayout.height;
            var p = points[0];

            if (contain$1(points, x, y)
                || contain$1(points, x + width, y)
                || contain$1(points, x, y + height)
                || contain$1(points, x + width, y + height)
                || BoundingRect.create(itemLayout).contain(p[0], p[1])
                || lineIntersectPolygon(x, y, x + width, y, points)
                || lineIntersectPolygon(x, y, x, y + height, points)
                || lineIntersectPolygon(x + width, y, x + width, y + height, points)
                || lineIntersectPolygon(x, y + height, x + width, y + height, points)
            ) {
                return true;
            }
        }
    }
};

function getLineSelectors(xyIndex) {
    var xy = ['x', 'y'];
    var wh = ['width', 'height'];

    return {
        point: function (itemLayout, selectors, area) {
            if (itemLayout) {
                var range = area.range;
                var p = itemLayout[xyIndex];
                return inLineRange(p, range);
            }
        },
        rect: function (itemLayout, selectors, area) {
            if (itemLayout) {
                var range = area.range;
                var layoutRange = [
                    itemLayout[xy[xyIndex]],
                    itemLayout[xy[xyIndex]] + itemLayout[wh[xyIndex]]
                ];
                layoutRange[1] < layoutRange[0] && layoutRange.reverse();
                return inLineRange(layoutRange[0], range)
                    || inLineRange(layoutRange[1], range)
                    || inLineRange(range[0], layoutRange)
                    || inLineRange(range[1], layoutRange);
            }
        }
    };
}

function inLineRange(p, range) {
    return range[0] <= p && p <= range[1];
}

function lineIntersectPolygon(lx, ly, l2x, l2y, points) {
    for (var i = 0, p2 = points[points.length - 1]; i < points.length; i++) {
        var p = points[i];
        if (lineIntersect(lx, ly, l2x, l2y, p[0], p[1], p2[0], p2[1])) {
            return true;
        }
        p2 = p;
    }
}

// Code from <http://blog.csdn.net/rickliuxiao/article/details/6259322> with some fix.
// See <https://en.wikipedia.org/wiki/Line%E2%80%93line_intersection>
function lineIntersect(a1x, a1y, a2x, a2y, b1x, b1y, b2x, b2y) {
    var delta = determinant(a2x - a1x, b1x - b2x, a2y - a1y, b1y - b2y);
    if (nearZero(delta)) { // parallel
        return false;
    }
    var namenda = determinant(b1x - a1x, b1x - b2x, b1y - a1y, b1y - b2y) / delta;
    if (namenda < 0 || namenda > 1) {
        return false;
    }
    var miu = determinant(a2x - a1x, b1x - a1x, a2y - a1y, b1y - a1y) / delta;
    if (miu < 0 || miu > 1) {
        return false;
    }
    return true;
}

function nearZero(val) {
    return val <= (1e-6) && val >= -(1e-6);
}

function determinant(v1, v2, v3, v4) {
    return v1 * v4 - v2 * v3;
}

var each$21 = each$1;
var indexOf$1 = indexOf;
var curry$5 = curry;

var COORD_CONVERTS = ['dataToPoint', 'pointToData'];

// FIXME
// how to genarialize to more coordinate systems.
var INCLUDE_FINDER_MAIN_TYPES = [
    'grid', 'xAxis', 'yAxis', 'geo', 'graph',
    'polar', 'radiusAxis', 'angleAxis', 'bmap'
];

/**
 * [option in constructor]:
 * {
 *     Index/Id/Name of geo, xAxis, yAxis, grid: See util/model#parseFinder.
 * }
 *
 *
 * [targetInfo]:
 *
 * There can be multiple axes in a single targetInfo. Consider the case
 * of `grid` component, a targetInfo represents a grid which contains one or more
 * cartesian and one or more axes. And consider the case of parallel system,
 * which has multiple axes in a coordinate system.
 * Can be {
 *     panelId: ...,
 *     coordSys: <a representitive cartesian in grid (first cartesian by default)>,
 *     coordSyses: all cartesians.
 *     gridModel: <grid component>
 *     xAxes: correspond to coordSyses on index
 *     yAxes: correspond to coordSyses on index
 * }
 * or {
 *     panelId: ...,
 *     coordSys: <geo coord sys>
 *     coordSyses: [<geo coord sys>]
 *     geoModel: <geo component>
 * }
 *
 *
 * [panelOpt]:
 *
 * Make from targetInfo. Input to BrushController.
 * {
 *     panelId: ...,
 *     rect: ...
 * }
 *
 *
 * [area]:
 *
 * Generated by BrushController or user input.
 * {
 *     panelId: Used to locate coordInfo directly. If user inpput, no panelId.
 *     brushType: determine how to convert to/from coord('rect' or 'polygon' or 'lineX/Y').
 *     Index/Id/Name of geo, xAxis, yAxis, grid: See util/model#parseFinder.
 *     range: pixel range.
 *     coordRange: representitive coord range (the first one of coordRanges).
 *     coordRanges: <Array> coord ranges, used in multiple cartesian in one grid.
 * }
 */

/**
 * @param {Object} option contains Index/Id/Name of xAxis/yAxis/geo/grid
 *        Each can be {number|Array.<number>}. like: {xAxisIndex: [3, 4]}
 * @param {module:echarts/model/Global} ecModel
 * @param {Object} [opt]
 * @param {Array.<string>} [opt.include] include coordinate system types.
 */
function BrushTargetManager(option, ecModel, opt) {
    /**
     * @private
     * @type {Array.<Object>}
     */
    var targetInfoList = this._targetInfoList = [];
    var info = {};
    var foundCpts = parseFinder$1(ecModel, option);

    each$21(targetInfoBuilders, function (builder, type) {
        if (!opt || !opt.include || indexOf$1(opt.include, type) >= 0) {
            builder(foundCpts, targetInfoList, info);
        }
    });
}

var proto$2 = BrushTargetManager.prototype;

proto$2.setOutputRanges = function (areas, ecModel) {
    this.matchOutputRanges(areas, ecModel, function (area, coordRange, coordSys) {
        (area.coordRanges || (area.coordRanges = [])).push(coordRange);
        // area.coordRange is the first of area.coordRanges
        if (!area.coordRange) {
            area.coordRange = coordRange;
            // In 'category' axis, coord to pixel is not reversible, so we can not
            // rebuild range by coordRange accrately, which may bring trouble when
            // brushing only one item. So we use __rangeOffset to rebuilding range
            // by coordRange. And this it only used in brush component so it is no
            // need to be adapted to coordRanges.
            var result = coordConvert[area.brushType](0, coordSys, coordRange);
            area.__rangeOffset = {
                offset: diffProcessor[area.brushType](result.values, area.range, [1, 1]),
                xyMinMax: result.xyMinMax
            };
        }
    });
};

proto$2.matchOutputRanges = function (areas, ecModel, cb) {
    each$21(areas, function (area) {
        var targetInfo = this.findTargetInfo(area, ecModel);

        if (targetInfo && targetInfo !== true) {
            each$1(
                targetInfo.coordSyses,
                function (coordSys) {
                    var result = coordConvert[area.brushType](1, coordSys, area.range);
                    cb(area, result.values, coordSys, ecModel);
                }
            );
        }
    }, this);
};

proto$2.setInputRanges = function (areas, ecModel) {
    each$21(areas, function (area) {
        var targetInfo = this.findTargetInfo(area, ecModel);

        if (__DEV__) {
            assert$1(
                !targetInfo || targetInfo === true || area.coordRange,
                'coordRange must be specified when coord index specified.'
            );
            assert$1(
                !targetInfo || targetInfo !== true || area.range,
                'range must be specified in global brush.'
            );
        }

        area.range = area.range || [];

        // convert coordRange to global range and set panelId.
        if (targetInfo && targetInfo !== true) {
            area.panelId = targetInfo.panelId;
            // (1) area.range shoule always be calculate from coordRange but does
            // not keep its original value, for the sake of the dataZoom scenario,
            // where area.coordRange remains unchanged but area.range may be changed.
            // (2) Only support converting one coordRange to pixel range in brush
            // component. So do not consider `coordRanges`.
            // (3) About __rangeOffset, see comment above.
            var result = coordConvert[area.brushType](0, targetInfo.coordSys, area.coordRange);
            var rangeOffset = area.__rangeOffset;
            area.range = rangeOffset
                ? diffProcessor[area.brushType](
                    result.values,
                    rangeOffset.offset,
                    getScales(result.xyMinMax, rangeOffset.xyMinMax)
                )
                : result.values;
        }
    }, this);
};

proto$2.makePanelOpts = function (api, getDefaultBrushType) {
    return map(this._targetInfoList, function (targetInfo) {
        var rect = targetInfo.getPanelRect();
        return {
            panelId: targetInfo.panelId,
            defaultBrushType: getDefaultBrushType && getDefaultBrushType(targetInfo),
            clipPath: makeRectPanelClipPath(rect),
            isTargetByCursor: makeRectIsTargetByCursor(
                rect, api, targetInfo.coordSysModel
            ),
            getLinearBrushOtherExtent: makeLinearBrushOtherExtent(rect)
        };
    });
};

proto$2.controlSeries = function (area, seriesModel, ecModel) {
    // Check whether area is bound in coord, and series do not belong to that coord.
    // If do not do this check, some brush (like lineX) will controll all axes.
    var targetInfo = this.findTargetInfo(area, ecModel);
    return targetInfo === true || (
        targetInfo && indexOf$1(targetInfo.coordSyses, seriesModel.coordinateSystem) >= 0
    );
};

/**
 * If return Object, a coord found.
 * If reutrn true, global found.
 * Otherwise nothing found.
 *
 * @param {Object} area
 * @param {Array} targetInfoList
 * @return {Object|boolean}
 */
proto$2.findTargetInfo = function (area, ecModel) {
    var targetInfoList = this._targetInfoList;
    var foundCpts = parseFinder$1(ecModel, area);

    for (var i = 0; i < targetInfoList.length; i++) {
        var targetInfo = targetInfoList[i];
        var areaPanelId = area.panelId;
        if (areaPanelId) {
            if (targetInfo.panelId === areaPanelId) {
                return targetInfo;
            }
        }
        else {
            for (var i = 0; i < targetInfoMatchers.length; i++) {
                if (targetInfoMatchers[i](foundCpts, targetInfo)) {
                    return targetInfo;
                }
            }
        }
    }

    return true;
};

function formatMinMax(minMax) {
    minMax[0] > minMax[1] && minMax.reverse();
    return minMax;
}

function parseFinder$1(ecModel, option) {
    return parseFinder(
        ecModel, option, {includeMainTypes: INCLUDE_FINDER_MAIN_TYPES}
    );
}

var targetInfoBuilders = {

    grid: function (foundCpts, targetInfoList) {
        var xAxisModels = foundCpts.xAxisModels;
        var yAxisModels = foundCpts.yAxisModels;
        var gridModels = foundCpts.gridModels;
        // Remove duplicated.
        var gridModelMap = createHashMap();
        var xAxesHas = {};
        var yAxesHas = {};

        if (!xAxisModels && !yAxisModels && !gridModels) {
            return;
        }

        each$21(xAxisModels, function (axisModel) {
            var gridModel = axisModel.axis.grid.model;
            gridModelMap.set(gridModel.id, gridModel);
            xAxesHas[gridModel.id] = true;
        });
        each$21(yAxisModels, function (axisModel) {
            var gridModel = axisModel.axis.grid.model;
            gridModelMap.set(gridModel.id, gridModel);
            yAxesHas[gridModel.id] = true;
        });
        each$21(gridModels, function (gridModel) {
            gridModelMap.set(gridModel.id, gridModel);
            xAxesHas[gridModel.id] = true;
            yAxesHas[gridModel.id] = true;
        });

        gridModelMap.each(function (gridModel) {
            var grid = gridModel.coordinateSystem;
            var cartesians = [];

            each$21(grid.getCartesians(), function (cartesian, index) {
                if (indexOf$1(xAxisModels, cartesian.getAxis('x').model) >= 0
                    || indexOf$1(yAxisModels, cartesian.getAxis('y').model) >= 0
                ) {
                    cartesians.push(cartesian);
                }
            });
            targetInfoList.push({
                panelId: 'grid--' + gridModel.id,
                gridModel: gridModel,
                coordSysModel: gridModel,
                // Use the first one as the representitive coordSys.
                coordSys: cartesians[0],
                coordSyses: cartesians,
                getPanelRect: panelRectBuilder.grid,
                xAxisDeclared: xAxesHas[gridModel.id],
                yAxisDeclared: yAxesHas[gridModel.id]
            });
        });
    },

    geo: function (foundCpts, targetInfoList) {
        each$21(foundCpts.geoModels, function (geoModel) {
            var coordSys = geoModel.coordinateSystem;
            targetInfoList.push({
                panelId: 'geo--' + geoModel.id,
                geoModel: geoModel,
                coordSysModel: geoModel,
                coordSys: coordSys,
                coordSyses: [coordSys],
                getPanelRect: panelRectBuilder.geo
            });
        });
    }
};

var targetInfoMatchers = [

    // grid
    function (foundCpts, targetInfo) {
        var xAxisModel = foundCpts.xAxisModel;
        var yAxisModel = foundCpts.yAxisModel;
        var gridModel = foundCpts.gridModel;

        !gridModel && xAxisModel && (gridModel = xAxisModel.axis.grid.model);
        !gridModel && yAxisModel && (gridModel = yAxisModel.axis.grid.model);

        return gridModel && gridModel === targetInfo.gridModel;
    },

    // geo
    function (foundCpts, targetInfo) {
        var geoModel = foundCpts.geoModel;
        return geoModel && geoModel === targetInfo.geoModel;
    }
];

var panelRectBuilder = {

    grid: function () {
        // grid is not Transformable.
        return this.coordSys.grid.getRect().clone();
    },

    geo: function () {
        var coordSys = this.coordSys;
        var rect = coordSys.getBoundingRect().clone();
        // geo roam and zoom transform
        rect.applyTransform(getTransform(coordSys));
        return rect;
    }
};

var coordConvert = {

    lineX: curry$5(axisConvert, 0),

    lineY: curry$5(axisConvert, 1),

    rect: function (to, coordSys, rangeOrCoordRange) {
        var xminymin = coordSys[COORD_CONVERTS[to]]([rangeOrCoordRange[0][0], rangeOrCoordRange[1][0]]);
        var xmaxymax = coordSys[COORD_CONVERTS[to]]([rangeOrCoordRange[0][1], rangeOrCoordRange[1][1]]);
        var values = [
            formatMinMax([xminymin[0], xmaxymax[0]]),
            formatMinMax([xminymin[1], xmaxymax[1]])
        ];
        return {values: values, xyMinMax: values};
    },

    polygon: function (to, coordSys, rangeOrCoordRange) {
        var xyMinMax = [[Infinity, -Infinity], [Infinity, -Infinity]];
        var values = map(rangeOrCoordRange, function (item) {
            var p = coordSys[COORD_CONVERTS[to]](item);
            xyMinMax[0][0] = Math.min(xyMinMax[0][0], p[0]);
            xyMinMax[1][0] = Math.min(xyMinMax[1][0], p[1]);
            xyMinMax[0][1] = Math.max(xyMinMax[0][1], p[0]);
            xyMinMax[1][1] = Math.max(xyMinMax[1][1], p[1]);
            return p;
        });
        return {values: values, xyMinMax: xyMinMax};
    }
};

function axisConvert(axisNameIndex, to, coordSys, rangeOrCoordRange) {
    if (__DEV__) {
        assert$1(
            coordSys.type === 'cartesian2d',
            'lineX/lineY brush is available only in cartesian2d.'
        );
    }

    var axis = coordSys.getAxis(['x', 'y'][axisNameIndex]);
    var values = formatMinMax(map([0, 1], function (i) {
        return to
            ? axis.coordToData(axis.toLocalCoord(rangeOrCoordRange[i]))
            : axis.toGlobalCoord(axis.dataToCoord(rangeOrCoordRange[i]));
    }));
    var xyMinMax = [];
    xyMinMax[axisNameIndex] = values;
    xyMinMax[1 - axisNameIndex] = [NaN, NaN];

    return {values: values, xyMinMax: xyMinMax};
}

var diffProcessor = {
    lineX: curry$5(axisDiffProcessor, 0),

    lineY: curry$5(axisDiffProcessor, 1),

    rect: function (values, refer, scales) {
        return [
            [values[0][0] - scales[0] * refer[0][0], values[0][1] - scales[0] * refer[0][1]],
            [values[1][0] - scales[1] * refer[1][0], values[1][1] - scales[1] * refer[1][1]]
        ];
    },

    polygon: function (values, refer, scales) {
        return map(values, function (item, idx) {
            return [item[0] - scales[0] * refer[idx][0], item[1] - scales[1] * refer[idx][1]];
        });
    }
};

function axisDiffProcessor(axisNameIndex, values, refer, scales) {
    return [
        values[0] - scales[axisNameIndex] * refer[0],
        values[1] - scales[axisNameIndex] * refer[1]
    ];
}

// We have to process scale caused by dataZoom manually,
// although it might be not accurate.
function getScales(xyMinMaxCurr, xyMinMaxOrigin) {
    var sizeCurr = getSize(xyMinMaxCurr);
    var sizeOrigin = getSize(xyMinMaxOrigin);
    var scales = [sizeCurr[0] / sizeOrigin[0], sizeCurr[1] / sizeOrigin[1]];
    isNaN(scales[0]) && (scales[0] = 1);
    isNaN(scales[1]) && (scales[1] = 1);
    return scales;
}

function getSize(xyMinMax) {
    return xyMinMax
        ? [xyMinMax[0][1] - xyMinMax[0][0], xyMinMax[1][1] - xyMinMax[1][0]]
        : [NaN, NaN];
}

var STATE_LIST = ['inBrush', 'outOfBrush'];
var DISPATCH_METHOD = '__ecBrushSelect';
var DISPATCH_FLAG = '__ecInBrushSelectEvent';
var PRIORITY_BRUSH = PRIORITY.VISUAL.BRUSH;

/**
 * Layout for visual, the priority higher than other layout, and before brush visual.
 */
registerLayout(PRIORITY_BRUSH, function (ecModel, api, payload) {
    ecModel.eachComponent({mainType: 'brush'}, function (brushModel) {

        payload && payload.type === 'takeGlobalCursor' && brushModel.setBrushOption(
            payload.key === 'brush' ? payload.brushOption : {brushType: false}
        );

        var brushTargetManager = brushModel.brushTargetManager = new BrushTargetManager(brushModel.option, ecModel);

        brushTargetManager.setInputRanges(brushModel.areas, ecModel);
    });
});

/**
 * Register the visual encoding if this modules required.
 */
registerVisual(PRIORITY_BRUSH, function (ecModel, api, payload) {

    var brushSelected = [];
    var throttleType;
    var throttleDelay;

    ecModel.eachComponent({mainType: 'brush'}, function (brushModel, brushIndex) {

        var thisBrushSelected = {
            brushId: brushModel.id,
            brushIndex: brushIndex,
            brushName: brushModel.name,
            areas: clone(brushModel.areas),
            selected: []
        };
        // Every brush component exists in event params, convenient
        // for user to find by index.
        brushSelected.push(thisBrushSelected);

        var brushOption = brushModel.option;
        var brushLink = brushOption.brushLink;
        var linkedSeriesMap = [];
        var selectedDataIndexForLink = [];
        var rangeInfoBySeries = [];
        var hasBrushExists = 0;

        if (!brushIndex) { // Only the first throttle setting works.
            throttleType = brushOption.throttleType;
            throttleDelay = brushOption.throttleDelay;
        }

        // Add boundingRect and selectors to range.
        var areas = map(brushModel.areas, function (area) {
            return bindSelector(
                defaults(
                    {boundingRect: boundingRectBuilders[area.brushType](area)},
                    area
                )
            );
        });

        var visualMappings = createVisualMappings(
            brushModel.option, STATE_LIST, function (mappingOption) {
                mappingOption.mappingMethod = 'fixed';
            }
        );

        isArray(brushLink) && each$1(brushLink, function (seriesIndex) {
            linkedSeriesMap[seriesIndex] = 1;
        });

        function linkOthers(seriesIndex) {
            return brushLink === 'all' || linkedSeriesMap[seriesIndex];
        }

        // If no supported brush or no brush on the series,
        // all visuals should be in original state.
        function brushed(rangeInfoList) {
            return !!rangeInfoList.length;
        }

        /**
         * Logic for each series: (If the logic has to be modified one day, do it carefully!)
         *
         * ( brushed ┬ && ┬hasBrushExist ┬ && linkOthers  ) => StepA: ┬record, ┬ StepB: ┬visualByRecord.
         *   !brushed┘    ├hasBrushExist ┤                            └nothing,┘        ├visualByRecord.
         *                └!hasBrushExist┘                                              └nothing.
         * ( !brushed  && ┬hasBrushExist ┬ && linkOthers  ) => StepA:  nothing,  StepB: ┬visualByRecord.
         *                └!hasBrushExist┘                                              └nothing.
         * ( brushed ┬ &&                     !linkOthers ) => StepA:  nothing,  StepB: ┬visualByCheck.
         *   !brushed┘                                                                  └nothing.
         * ( !brushed  &&                     !linkOthers ) => StepA:  nothing,  StepB:  nothing.
         */

        // Step A
        ecModel.eachSeries(function (seriesModel, seriesIndex) {
            var rangeInfoList = rangeInfoBySeries[seriesIndex] = [];

            seriesModel.subType === 'parallel'
                ? stepAParallel(seriesModel, seriesIndex, rangeInfoList)
                : stepAOthers(seriesModel, seriesIndex, rangeInfoList);
        });

        function stepAParallel(seriesModel, seriesIndex) {
            var coordSys = seriesModel.coordinateSystem;
            hasBrushExists |= coordSys.hasAxisBrushed();

            linkOthers(seriesIndex) && coordSys.eachActiveState(
                seriesModel.getData(),
                function (activeState, dataIndex) {
                    activeState === 'active' && (selectedDataIndexForLink[dataIndex] = 1);
                }
            );
        }

        function stepAOthers(seriesModel, seriesIndex, rangeInfoList) {
            var selectorsByBrushType = getSelectorsByBrushType(seriesModel);
            if (!selectorsByBrushType || brushModelNotControll(brushModel, seriesIndex)) {
                return;
            }

            each$1(areas, function (area) {
                selectorsByBrushType[area.brushType]
                    && brushModel.brushTargetManager.controlSeries(area, seriesModel, ecModel)
                    && rangeInfoList.push(area);
                hasBrushExists |= brushed(rangeInfoList);
            });

            if (linkOthers(seriesIndex) && brushed(rangeInfoList)) {
                var data = seriesModel.getData();
                data.each(function (dataIndex) {
                    if (checkInRange(selectorsByBrushType, rangeInfoList, data, dataIndex)) {
                        selectedDataIndexForLink[dataIndex] = 1;
                    }
                });
            }
        }

        // Step B
        ecModel.eachSeries(function (seriesModel, seriesIndex) {
            var seriesBrushSelected = {
                seriesId: seriesModel.id,
                seriesIndex: seriesIndex,
                seriesName: seriesModel.name,
                dataIndex: []
            };
            // Every series exists in event params, convenient
            // for user to find series by seriesIndex.
            thisBrushSelected.selected.push(seriesBrushSelected);

            var selectorsByBrushType = getSelectorsByBrushType(seriesModel);
            var rangeInfoList = rangeInfoBySeries[seriesIndex];

            var data = seriesModel.getData();
            var getValueState = linkOthers(seriesIndex)
                ? function (dataIndex) {
                    return selectedDataIndexForLink[dataIndex]
                        ? (seriesBrushSelected.dataIndex.push(data.getRawIndex(dataIndex)), 'inBrush')
                        : 'outOfBrush';
                }
                : function (dataIndex) {
                    return checkInRange(selectorsByBrushType, rangeInfoList, data, dataIndex)
                        ? (seriesBrushSelected.dataIndex.push(data.getRawIndex(dataIndex)), 'inBrush')
                        : 'outOfBrush';
                };

            // If no supported brush or no brush, all visuals are in original state.
            (linkOthers(seriesIndex) ? hasBrushExists : brushed(rangeInfoList))
                && applyVisual(
                    STATE_LIST, visualMappings, data, getValueState
                );
        });

    });

    dispatchAction(api, throttleType, throttleDelay, brushSelected, payload);
});

function dispatchAction(api, throttleType, throttleDelay, brushSelected, payload) {
    // This event will not be triggered when `setOpion`, otherwise dead lock may
    // triggered when do `setOption` in event listener, which we do not find
    // satisfactory way to solve yet. Some considered resolutions:
    // (a) Diff with prevoius selected data ant only trigger event when changed.
    // But store previous data and diff precisely (i.e., not only by dataIndex, but
    // also detect value changes in selected data) might bring complexity or fragility.
    // (b) Use spectial param like `silent` to suppress event triggering.
    // But such kind of volatile param may be weird in `setOption`.
    if (!payload) {
        return;
    }

    var zr = api.getZr();
    if (zr[DISPATCH_FLAG]) {
        return;
    }

    if (!zr[DISPATCH_METHOD]) {
        zr[DISPATCH_METHOD] = doDispatch;
    }

    var fn = createOrUpdate(zr, DISPATCH_METHOD, throttleDelay, throttleType);

    fn(api, brushSelected);
}

function doDispatch(api, brushSelected) {
    if (!api.isDisposed()) {
        var zr = api.getZr();
        zr[DISPATCH_FLAG] = true;
        api.dispatchAction({
            type: 'brushSelect',
            batch: brushSelected
        });
        zr[DISPATCH_FLAG] = false;
    }
}

function checkInRange(selectorsByBrushType, rangeInfoList, data, dataIndex) {
    for (var i = 0, len = rangeInfoList.length; i < len; i++) {
        var area = rangeInfoList[i];
        if (selectorsByBrushType[area.brushType](
            dataIndex, data, area.selectors, area
        )) {
            return true;
        }
    }
}

function getSelectorsByBrushType(seriesModel) {
    var brushSelector = seriesModel.brushSelector;
    if (isString(brushSelector)) {
        var sels = [];
        each$1(selector, function (selectorsByElementType, brushType) {
            sels[brushType] = function (dataIndex, data, selectors, area) {
                var itemLayout = data.getItemLayout(dataIndex);
                return selectorsByElementType[brushSelector](itemLayout, selectors, area);
            };
        });
        return sels;
    }
    else if (isFunction$1(brushSelector)) {
        var bSelector = {};
        each$1(selector, function (sel, brushType) {
            bSelector[brushType] = brushSelector;
        });
        return bSelector;
    }
    return brushSelector;
}

function brushModelNotControll(brushModel, seriesIndex) {
    var seriesIndices = brushModel.option.seriesIndex;
    return seriesIndices != null
        && seriesIndices !== 'all'
        && (
            isArray(seriesIndices)
            ? indexOf(seriesIndices, seriesIndex) < 0
            : seriesIndex !== seriesIndices
        );
}

function bindSelector(area) {
    var selectors = area.selectors = {};
    each$1(selector[area.brushType], function (selFn, elType) {
        // Do not use function binding or curry for performance.
        selectors[elType] = function (itemLayout) {
            return selFn(itemLayout, selectors, area);
        };
    });
    return area;
}

var boundingRectBuilders = {

    lineX: noop,

    lineY: noop,

    rect: function (area) {
        return getBoundingRectFromMinMax(area.range);
    },

    polygon: function (area) {
        var minMax;
        var range = area.range;

        for (var i = 0, len = range.length; i < len; i++) {
            minMax = minMax || [[Infinity, -Infinity], [Infinity, -Infinity]];
            var rg = range[i];
            rg[0] < minMax[0][0] && (minMax[0][0] = rg[0]);
            rg[0] > minMax[0][1] && (minMax[0][1] = rg[0]);
            rg[1] < minMax[1][0] && (minMax[1][0] = rg[1]);
            rg[1] > minMax[1][1] && (minMax[1][1] = rg[1]);
        }

        return minMax && getBoundingRectFromMinMax(minMax);
    }
};

function getBoundingRectFromMinMax(minMax) {
    return new BoundingRect(
        minMax[0][0],
        minMax[1][0],
        minMax[0][1] - minMax[0][0],
        minMax[1][1] - minMax[1][0]
    );
}

var DEFAULT_OUT_OF_BRUSH_COLOR = ['#ddd'];

var BrushModel = extendComponentModel({

    type: 'brush',

    dependencies: ['geo', 'grid', 'xAxis', 'yAxis', 'parallel', 'series'],

    /**
     * @protected
     */
    defaultOption: {
        // inBrush: null,
        // outOfBrush: null,
        toolbox: null,          // Default value see preprocessor.
        brushLink: null,        // Series indices array, broadcast using dataIndex.
                                // or 'all', which means all series. 'none' or null means no series.
        seriesIndex: 'all',     // seriesIndex array, specify series controlled by this brush component.
        geoIndex: null,         //
        xAxisIndex: null,
        yAxisIndex: null,

        brushType: 'rect',      // Default brushType, see BrushController.
        brushMode: 'single',    // Default brushMode, 'single' or 'multiple'
        transformable: true,    // Default transformable.
        brushStyle: {           // Default brushStyle
            borderWidth: 1,
            color: 'rgba(120,140,180,0.3)',
            borderColor: 'rgba(120,140,180,0.8)'
        },

        throttleType: 'fixRate',// Throttle in brushSelected event. 'fixRate' or 'debounce'.
                                // If null, no throttle. Valid only in the first brush component
        throttleDelay: 0,       // Unit: ms, 0 means every event will be triggered.

        // FIXME
        // 试验效果
        removeOnClick: true,

        z: 10000
    },

    /**
     * @readOnly
     * @type {Array.<Object>}
     */
    areas: [],

    /**
     * Current activated brush type.
     * If null, brush is inactived.
     * see module:echarts/component/helper/BrushController
     * @readOnly
     * @type {string}
     */
    brushType: null,

    /**
     * Current brush opt.
     * see module:echarts/component/helper/BrushController
     * @readOnly
     * @type {Object}
     */
    brushOption: {},

    /**
     * @readOnly
     * @type {Array.<Object>}
     */
    coordInfoList: [],

    optionUpdated: function (newOption, isInit) {
        var thisOption = this.option;

        !isInit && replaceVisualOption(
            thisOption, newOption, ['inBrush', 'outOfBrush']
        );

        thisOption.inBrush = thisOption.inBrush || {};
        // Always give default visual, consider setOption at the second time.
        thisOption.outOfBrush = thisOption.outOfBrush || {color: DEFAULT_OUT_OF_BRUSH_COLOR};
    },

    /**
     * If ranges is null/undefined, range state remain.
     *
     * @param {Array.<Object>} [ranges]
     */
    setAreas: function (areas) {
        if (__DEV__) {
            assert$1(isArray(areas));
            each$1(areas, function (area) {
                assert$1(area.brushType, 'Illegal areas');
            });
        }

        // If ranges is null/undefined, range state remain.
        // This helps user to dispatchAction({type: 'brush'}) with no areas
        // set but just want to get the current brush select info from a `brush` event.
        if (!areas) {
            return;
        }

        this.areas = map(areas, function (area) {
            return generateBrushOption(this.option, area);
        }, this);
    },

    /**
     * see module:echarts/component/helper/BrushController
     * @param {Object} brushOption
     */
    setBrushOption: function (brushOption) {
        this.brushOption = generateBrushOption(this.option, brushOption);
        this.brushType = this.brushOption.brushType;
    }

});

function generateBrushOption(option, brushOption) {
    return merge(
        {
            brushType: option.brushType,
            brushMode: option.brushMode,
            transformable: option.transformable,
            brushStyle: new Model(option.brushStyle).getItemStyle(),
            removeOnClick: option.removeOnClick,
            z: option.z
        },
        brushOption,
        true
    );
}

extendComponentView({

    type: 'brush',

    init: function (ecModel, api) {

        /**
         * @readOnly
         * @type {module:echarts/model/Global}
         */
        this.ecModel = ecModel;

        /**
         * @readOnly
         * @type {module:echarts/ExtensionAPI}
         */
        this.api = api;

        /**
         * @readOnly
         * @type {module:echarts/component/brush/BrushModel}
         */
        this.model;

        /**
         * @private
         * @type {module:echarts/component/helper/BrushController}
         */
        (this._brushController = new BrushController(api.getZr()))
            .on('brush', bind(this._onBrush, this))
            .mount();
    },

    /**
     * @override
     */
    render: function (brushModel) {
        this.model = brushModel;
        return updateController.apply(this, arguments);
    },

    /**
     * @override
     */
    updateTransform: updateController,

    /**
     * @override
     */
    updateView: updateController,

    // /**
    //  * @override
    //  */
    // updateLayout: updateController,

    // /**
    //  * @override
    //  */
    // updateVisual: updateController,

    /**
     * @override
     */
    dispose: function () {
        this._brushController.dispose();
    },

    /**
     * @private
     */
    _onBrush: function (areas, opt) {
        var modelId = this.model.id;

        this.model.brushTargetManager.setOutputRanges(areas, this.ecModel);

        // Action is not dispatched on drag end, because the drag end
        // emits the same params with the last drag move event, and
        // may have some delay when using touch pad, which makes
        // animation not smooth (when using debounce).
        (!opt.isEnd || opt.removeOnClick) && this.api.dispatchAction({
            type: 'brush',
            brushId: modelId,
            areas: clone(areas),
            $from: modelId
        });
    }

});

function updateController(brushModel, ecModel, api, payload) {
    // Do not update controller when drawing.
    (!payload || payload.$from !== brushModel.id) && this._brushController
        .setPanels(brushModel.brushTargetManager.makePanelOpts(api))
        .enableBrush(brushModel.brushOption)
        .updateCovers(brushModel.areas.slice());
}

/**
 * payload: {
 *      brushIndex: number, or,
 *      brushId: string, or,
 *      brushName: string,
 *      globalRanges: Array
 * }
 */
registerAction(
        {type: 'brush', event: 'brush' /*, update: 'updateView' */},
    function (payload, ecModel) {
        ecModel.eachComponent({mainType: 'brush', query: payload}, function (brushModel) {
            brushModel.setAreas(payload.areas);
        });
    }
);

/**
 * payload: {
 *      brushComponents: [
 *          {
 *              brushId,
 *              brushIndex,
 *              brushName,
 *              series: [
 *                  {
 *                      seriesId,
 *                      seriesIndex,
 *                      seriesName,
 *                      rawIndices: [21, 34, ...]
 *                  },
 *                  ...
 *              ]
 *          },
 *          ...
 *      ]
 * }
 */
registerAction(
        {type: 'brushSelect', event: 'brushSelected', update: 'none'},
    function () {}
);

var features = {};

function register$1(name, ctor) {
    features[name] = ctor;
}

function get$1(name) {
    return features[name];
}

var brushLang = lang.toolbox.brush;

function Brush(model, ecModel, api) {
    this.model = model;
    this.ecModel = ecModel;
    this.api = api;

    /**
     * @private
     * @type {string}
     */
    this._brushType;

    /**
     * @private
     * @type {string}
     */
    this._brushMode;
}

Brush.defaultOption = {
    show: true,
    type: ['rect', 'polygon', 'lineX', 'lineY', 'keep', 'clear'],
    icon: {
        rect: 'M7.3,34.7 M0.4,10V-0.2h9.8 M89.6,10V-0.2h-9.8 M0.4,60v10.2h9.8 M89.6,60v10.2h-9.8 M12.3,22.4V10.5h13.1 M33.6,10.5h7.8 M49.1,10.5h7.8 M77.5,22.4V10.5h-13 M12.3,31.1v8.2 M77.7,31.1v8.2 M12.3,47.6v11.9h13.1 M33.6,59.5h7.6 M49.1,59.5 h7.7 M77.5,47.6v11.9h-13', // jshint ignore:line
        polygon: 'M55.2,34.9c1.7,0,3.1,1.4,3.1,3.1s-1.4,3.1-3.1,3.1 s-3.1-1.4-3.1-3.1S53.5,34.9,55.2,34.9z M50.4,51c1.7,0,3.1,1.4,3.1,3.1c0,1.7-1.4,3.1-3.1,3.1c-1.7,0-3.1-1.4-3.1-3.1 C47.3,52.4,48.7,51,50.4,51z M55.6,37.1l1.5-7.8 M60.1,13.5l1.6-8.7l-7.8,4 M59,19l-1,5.3 M24,16.1l6.4,4.9l6.4-3.3 M48.5,11.6 l-5.9,3.1 M19.1,12.8L9.7,5.1l1.1,7.7 M13.4,29.8l1,7.3l6.6,1.6 M11.6,18.4l1,6.1 M32.8,41.9 M26.6,40.4 M27.3,40.2l6.1,1.6 M49.9,52.1l-5.6-7.6l-4.9-1.2', // jshint ignore:line
        lineX: 'M15.2,30 M19.7,15.6V1.9H29 M34.8,1.9H40.4 M55.3,15.6V1.9H45.9 M19.7,44.4V58.1H29 M34.8,58.1H40.4 M55.3,44.4 V58.1H45.9 M12.5,20.3l-9.4,9.6l9.6,9.8 M3.1,29.9h16.5 M62.5,20.3l9.4,9.6L62.3,39.7 M71.9,29.9H55.4', // jshint ignore:line
        lineY: 'M38.8,7.7 M52.7,12h13.2v9 M65.9,26.6V32 M52.7,46.3h13.2v-9 M24.9,12H11.8v9 M11.8,26.6V32 M24.9,46.3H11.8v-9 M48.2,5.1l-9.3-9l-9.4,9.2 M38.9-3.9V12 M48.2,53.3l-9.3,9l-9.4-9.2 M38.9,62.3V46.4', // jshint ignore:line
        keep: 'M4,10.5V1h10.3 M20.7,1h6.1 M33,1h6.1 M55.4,10.5V1H45.2 M4,17.3v6.6 M55.6,17.3v6.6 M4,30.5V40h10.3 M20.7,40 h6.1 M33,40h6.1 M55.4,30.5V40H45.2 M21,18.9h62.9v48.6H21V18.9z', // jshint ignore:line
        clear: 'M22,14.7l30.9,31 M52.9,14.7L22,45.7 M4.7,16.8V4.2h13.1 M26,4.2h7.8 M41.6,4.2h7.8 M70.3,16.8V4.2H57.2 M4.7,25.9v8.6 M70.3,25.9v8.6 M4.7,43.2v12.6h13.1 M26,55.8h7.8 M41.6,55.8h7.8 M70.3,43.2v12.6H57.2' // jshint ignore:line
    },
    // `rect`, `polygon`, `lineX`, `lineY`, `keep`, `clear`
    title: clone(brushLang.title)
};

var proto$3 = Brush.prototype;

// proto.updateLayout = function (featureModel, ecModel, api) {
proto$3.render =
proto$3.updateView = function (featureModel, ecModel, api) {
    var brushType;
    var brushMode;
    var isBrushed;

    ecModel.eachComponent({mainType: 'brush'}, function (brushModel) {
        brushType = brushModel.brushType;
        brushMode = brushModel.brushOption.brushMode || 'single';
        isBrushed |= brushModel.areas.length;
    });
    this._brushType = brushType;
    this._brushMode = brushMode;

    each$1(featureModel.get('type', true), function (type) {
        featureModel.setIconStatus(
            type,
            (
                type === 'keep'
                ? brushMode === 'multiple'
                : type === 'clear'
                ? isBrushed
                : type === brushType
            ) ? 'emphasis' : 'normal'
        );
    });
};

proto$3.getIcons = function () {
    var model = this.model;
    var availableIcons = model.get('icon', true);
    var icons = {};
    each$1(model.get('type', true), function (type) {
        if (availableIcons[type]) {
            icons[type] = availableIcons[type];
        }
    });
    return icons;
};

proto$3.onclick = function (ecModel, api, type) {
    var brushType = this._brushType;
    var brushMode = this._brushMode;

    if (type === 'clear') {
        // Trigger parallel action firstly
        api.dispatchAction({
            type: 'axisAreaSelect',
            intervals: []
        });

        api.dispatchAction({
            type: 'brush',
            command: 'clear',
            // Clear all areas of all brush components.
            areas: []
        });
    }
    else {
        api.dispatchAction({
            type: 'takeGlobalCursor',
            key: 'brush',
            brushOption: {
                brushType: type === 'keep'
                    ? brushType
                    : (brushType === type ? false : type),
                brushMode: type === 'keep'
                    ? (brushMode === 'multiple' ? 'single' : 'multiple')
                    : brushMode
            }
        });
    }
};

register$1('brush', Brush);

/**
 * Brush component entry
 */

registerPreprocessor(preprocessor$1);

// (24*60*60*1000)
var PROXIMATE_ONE_DAY = 86400000;

/**
 * Calendar
 *
 * @constructor
 *
 * @param {Object} calendarModel calendarModel
 * @param {Object} ecModel       ecModel
 * @param {Object} api           api
 */
function Calendar(calendarModel, ecModel, api) {
    this._model = calendarModel;
}

Calendar.prototype = {

    constructor: Calendar,

    type: 'calendar',

    dimensions: ['time', 'value'],

    // Required in createListFromData
    getDimensionsInfo: function () {
        return [{name: 'time', type: 'time'}, 'value'];
    },

    getRangeInfo: function () {
        return this._rangeInfo;
    },

    getModel: function () {
        return this._model;
    },

    getRect: function () {
        return this._rect;
    },

    getCellWidth: function () {
        return this._sw;
    },

    getCellHeight: function () {
        return this._sh;
    },

    getOrient: function () {
        return this._orient;
    },

    /**
     * getFirstDayOfWeek
     *
     * @example
     *     0 : start at Sunday
     *     1 : start at Monday
     *
     * @return {number}
     */
    getFirstDayOfWeek: function () {
        return this._firstDayOfWeek;
    },

    /**
     * get date info
     *
     * @param  {string|number} date date
     * @return {Object}
     * {
     *      y: string, local full year, eg., '1940',
     *      m: string, local month, from '01' ot '12',
     *      d: string, local date, from '01' to '31' (if exists),
     *      day: It is not date.getDay(). It is the location of the cell in a week, from 0 to 6,
     *      time: timestamp,
     *      formatedDate: string, yyyy-MM-dd,
     *      date: original date object.
     * }
     */
    getDateInfo: function (date) {

        date = parseDate(date);

        var y = date.getFullYear();

        var m = date.getMonth() + 1;
        m = m < 10 ? '0' + m : m;

        var d = date.getDate();
        d = d < 10 ? '0' + d : d;

        var day = date.getDay();

        day = Math.abs((day + 7 - this.getFirstDayOfWeek()) % 7);

        return {
            y: y,
            m: m,
            d: d,
            day: day,
            time: date.getTime(),
            formatedDate: y + '-' + m + '-' + d,
            date: date
        };
    },

    getNextNDay: function (date, n) {
        n = n || 0;
        if (n === 0) {
            return this.getDateInfo(date);
        }

        date = new Date(this.getDateInfo(date).time);
        date.setDate(date.getDate() + n);

        return this.getDateInfo(date);
    },

    update: function (ecModel, api) {

        this._firstDayOfWeek = +this._model.getModel('dayLabel').get('firstDay');
        this._orient = this._model.get('orient');
        this._lineWidth = this._model.getModel('itemStyle').getItemStyle().lineWidth || 0;


        this._rangeInfo = this._getRangeInfo(this._initRangeOption());
        var weeks = this._rangeInfo.weeks || 1;
        var whNames = ['width', 'height'];
        var cellSize = this._model.get('cellSize').slice();
        var layoutParams = this._model.getBoxLayoutParams();
        var cellNumbers = this._orient === 'horizontal' ? [weeks, 7] : [7, weeks];

        each$1([0, 1], function (idx) {
            if (cellSizeSpecified(cellSize, idx)) {
                layoutParams[whNames[idx]] = cellSize[idx] * cellNumbers[idx];
            }
        });

        var whGlobal = {
            width: api.getWidth(),
            height: api.getHeight()
        };
        var calendarRect = this._rect = getLayoutRect(layoutParams, whGlobal);

        each$1([0, 1], function (idx) {
            if (!cellSizeSpecified(cellSize, idx)) {
                cellSize[idx] = calendarRect[whNames[idx]] / cellNumbers[idx];
            }
        });

        function cellSizeSpecified(cellSize, idx) {
            return cellSize[idx] != null && cellSize[idx] !== 'auto';
        }

        this._sw = cellSize[0];
        this._sh = cellSize[1];
    },


    /**
     * Convert a time data(time, value) item to (x, y) point.
     *
     * @override
     * @param  {Array|number} data data
     * @param  {boolean} [clamp=true] out of range
     * @return {Array} point
     */
    dataToPoint: function (data, clamp) {
        isArray(data) && (data = data[0]);
        clamp == null && (clamp = true);

        var dayInfo = this.getDateInfo(data);
        var range = this._rangeInfo;
        var date = dayInfo.formatedDate;

        // if not in range return [NaN, NaN]
        if (clamp && !(dayInfo.time >= range.start.time && dayInfo.time <= range.end.time)) {
            return [NaN, NaN];
        }

        var week = dayInfo.day;
        var nthWeek = this._getRangeInfo([range.start.time, date]).nthWeek;

        if (this._orient === 'vertical') {
            return [
                this._rect.x + week * this._sw + this._sw / 2,
                this._rect.y + nthWeek * this._sh + this._sh / 2
            ];

        }

        return [
            this._rect.x + nthWeek * this._sw + this._sw / 2,
            this._rect.y + week * this._sh + this._sh / 2
        ];

    },

    /**
     * Convert a (x, y) point to time data
     *
     * @override
     * @param  {string} point point
     * @return {string}       data
     */
    pointToData: function (point) {

        var date = this.pointToDate(point);

        return date && date.time;
    },

    /**
     * Convert a time date item to (x, y) four point.
     *
     * @param  {Array} data  date[0] is date
     * @param  {boolean} [clamp=true]  out of range
     * @return {Object}       point
     */
    dataToRect: function (data, clamp) {
        var point = this.dataToPoint(data, clamp);

        return {
            contentShape: {
                x: point[0] - (this._sw - this._lineWidth) / 2,
                y: point[1] - (this._sh - this._lineWidth) / 2,
                width: this._sw - this._lineWidth,
                height: this._sh - this._lineWidth
            },

            center: point,

            tl: [
                point[0] - this._sw / 2,
                point[1] - this._sh / 2
            ],

            tr: [
                point[0] + this._sw / 2,
                point[1] - this._sh / 2
            ],

            br: [
                point[0] + this._sw / 2,
                point[1] + this._sh / 2
            ],

            bl: [
                point[0] - this._sw / 2,
                point[1] + this._sh / 2
            ]

        };
    },

    /**
     * Convert a (x, y) point to time date
     *
     * @param  {Array} point point
     * @return {Object}       date
     */
    pointToDate: function (point) {
        var nthX = Math.floor((point[0] - this._rect.x) / this._sw) + 1;
        var nthY = Math.floor((point[1] - this._rect.y) / this._sh) + 1;
        var range = this._rangeInfo.range;

        if (this._orient === 'vertical') {
            return this._getDateByWeeksAndDay(nthY, nthX - 1, range);
        }

        return this._getDateByWeeksAndDay(nthX, nthY - 1, range);
    },

    /**
     * @inheritDoc
     */
    convertToPixel: curry(doConvert$2, 'dataToPoint'),

    /**
     * @inheritDoc
     */
    convertFromPixel: curry(doConvert$2, 'pointToData'),

    /**
     * initRange
     *
     * @private
     * @return {Array} [start, end]
     */
    _initRangeOption: function () {
        var range = this._model.get('range');

        var rg = range;

        if (isArray(rg) && rg.length === 1) {
            rg = rg[0];
        }

        if (/^\d{4}$/.test(rg)) {
            range = [rg + '-01-01', rg + '-12-31'];
        }

        if (/^\d{4}[\/|-]\d{1,2}$/.test(rg)) {

            var start = this.getDateInfo(rg);
            var firstDay = start.date;
            firstDay.setMonth(firstDay.getMonth() + 1);

            var end = this.getNextNDay(firstDay, -1);
            range = [start.formatedDate, end.formatedDate];
        }

        if (/^\d{4}[\/|-]\d{1,2}[\/|-]\d{1,2}$/.test(rg)) {
            range = [rg, rg];
        }

        var tmp = this._getRangeInfo(range);

        if (tmp.start.time > tmp.end.time) {
            range.reverse();
        }

        return range;
    },

    /**
     * range info
     *
     * @private
     * @param  {Array} range range ['2017-01-01', '2017-07-08']
     *  If range[0] > range[1], they will not be reversed.
     * @return {Object}       obj
     */
    _getRangeInfo: function (range) {
        range = [
            this.getDateInfo(range[0]),
            this.getDateInfo(range[1])
        ];

        var reversed;
        if (range[0].time > range[1].time) {
            reversed = true;
            range.reverse();
        }

        var allDay = Math.floor(range[1].time / PROXIMATE_ONE_DAY)
            - Math.floor(range[0].time / PROXIMATE_ONE_DAY) + 1;

        // Consider case:
        // Firstly set system timezone as "Time Zone: America/Toronto",
        // ```
        // var first = new Date(1478412000000 - 3600 * 1000 * 2.5);
        // var second = new Date(1478412000000);
        // var allDays = Math.floor(second / ONE_DAY) - Math.floor(first / ONE_DAY) + 1;
        // ```
        // will get wrong result because of DST. So we should fix it.
        var date = new Date(range[0].time);
        var startDateNum = date.getDate();
        var endDateNum = range[1].date.getDate();
        date.setDate(startDateNum + allDay - 1);
        // The bias can not over a month, so just compare date.
        if (date.getDate() !== endDateNum) {
            var sign = date.getTime() - range[1].time > 0 ? 1 : -1;
            while (date.getDate() !== endDateNum && (date.getTime() - range[1].time) * sign > 0) {
                allDay -= sign;
                date.setDate(startDateNum + allDay - 1);
            }
        }

        var weeks = Math.floor((allDay + range[0].day + 6) / 7);
        var nthWeek = reversed ? -weeks + 1: weeks - 1;

        reversed && range.reverse();

        return {
            range: [range[0].formatedDate, range[1].formatedDate],
            start: range[0],
            end: range[1],
            allDay: allDay,
            weeks: weeks,
            // From 0.
            nthWeek: nthWeek,
            fweek: range[0].day,
            lweek: range[1].day
        };
    },

    /**
     * get date by nthWeeks and week day in range
     *
     * @private
     * @param  {number} nthWeek the week
     * @param  {number} day   the week day
     * @param  {Array} range [d1, d2]
     * @return {Object}
     */
    _getDateByWeeksAndDay: function (nthWeek, day, range) {
        var rangeInfo = this._getRangeInfo(range);

        if (nthWeek > rangeInfo.weeks
            || (nthWeek === 0 && day < rangeInfo.fweek)
            || (nthWeek === rangeInfo.weeks && day > rangeInfo.lweek)
        ) {
            return false;
        }

        var nthDay = (nthWeek - 1) * 7 - rangeInfo.fweek + day;
        var date = new Date(rangeInfo.start.time);
        date.setDate(rangeInfo.start.d + nthDay);

        return this.getDateInfo(date);
    }
};

Calendar.dimensions =  Calendar.prototype.dimensions;

Calendar.getDimensionsInfo =  Calendar.prototype.getDimensionsInfo;

Calendar.create = function (ecModel, api) {
    var calendarList = [];

    ecModel.eachComponent('calendar', function (calendarModel) {
        var calendar = new Calendar(calendarModel, ecModel, api);
        calendarList.push(calendar);
        calendarModel.coordinateSystem = calendar;
    });

    ecModel.eachSeries(function (calendarSeries) {
        if (calendarSeries.get('coordinateSystem') === 'calendar') {
            // Inject coordinate system
            calendarSeries.coordinateSystem = calendarList[calendarSeries.get('calendarIndex') || 0];
        }
    });
    return calendarList;
};

function doConvert$2(methodName, ecModel, finder, value) {
    var calendarModel = finder.calendarModel;
    var seriesModel = finder.seriesModel;

    var coordSys = calendarModel
        ? calendarModel.coordinateSystem
        : seriesModel
        ? seriesModel.coordinateSystem
        : null;

    return coordSys === this ? coordSys[methodName](value) : null;
}

CoordinateSystemManager.register('calendar', Calendar);

var CalendarModel = ComponentModel.extend({

    type: 'calendar',

    /**
     * @type {module:echarts/coord/calendar/Calendar}
     */
    coordinateSystem: null,

    defaultOption: {
        zlevel: 0,
        z: 2,
        left: 80,
        top: 60,

        cellSize: 20,

        // horizontal vertical
        orient: 'horizontal',

        // month separate line style
        splitLine: {
            show: true,
            lineStyle: {
                color: '#000',
                width: 1,
                type: 'solid'
            }
        },

        // rect style  temporarily unused emphasis
        itemStyle: {
            color: '#fff',
            borderWidth: 1,
            borderColor: '#ccc'
        },

        // week text style
        dayLabel: {
            show: true,

            // a week first day
            firstDay: 0,

            // start end
            position: 'start',
            margin: '50%', // 50% of cellSize
            nameMap: 'en',
            color: '#000'
        },

        // month text style
        monthLabel: {
            show: true,

            // start end
            position: 'start',
            margin: 5,

            // center or left
            align: 'center',

            // cn en []
            nameMap: 'en',
            formatter: null,
            color: '#000'
        },

        // year text style
        yearLabel: {
            show: true,

            // top bottom left right
            position: null,
            margin: 30,
            formatter: null,
            color: '#ccc',
            fontFamily: 'sans-serif',
            fontWeight: 'bolder',
            fontSize: 20
        }
    },

    /**
     * @override
     */
    init: function (option, parentModel, ecModel, extraOpt) {
        var inputPositionParams = getLayoutParams(option);

        CalendarModel.superApply(this, 'init', arguments);

        mergeAndNormalizeLayoutParams$1(option, inputPositionParams);
    },

    /**
     * @override
     */
    mergeOption: function (option, extraOpt) {
        CalendarModel.superApply(this, 'mergeOption', arguments);

        mergeAndNormalizeLayoutParams$1(this.option, option);
    }
});

function mergeAndNormalizeLayoutParams$1(target, raw) {
    // Normalize cellSize
    var cellSize = target.cellSize;

    if (!isArray(cellSize)) {
        cellSize = target.cellSize = [cellSize, cellSize];
    }
    else if (cellSize.length === 1) {
        cellSize[1] = cellSize[0];
    }

    var ignoreSize = map([0, 1], function (hvIdx) {
        // If user have set `width` or both `left` and `right`, cellSize
        // will be automatically set to 'auto', otherwise the default
        // setting of cellSize will make `width` setting not work.
        if (sizeCalculable(raw, hvIdx)) {
            cellSize[hvIdx] = 'auto';
        }
        return cellSize[hvIdx] != null && cellSize[hvIdx] !== 'auto';
    });

    mergeLayoutParam(target, raw, {
        type: 'box', ignoreSize: ignoreSize
    });
}

var MONTH_TEXT = {
    EN: [
        'Jan', 'Feb', 'Mar',
        'Apr', 'May', 'Jun',
        'Jul', 'Aug', 'Sep',
        'Oct', 'Nov', 'Dec'
    ],
    CN: [
        '一月', '二月', '三月',
        '四月', '五月', '六月',
        '七月', '八月', '九月',
        '十月', '十一月', '十二月'
    ]
};

var WEEK_TEXT = {
    EN: ['S', 'M', 'T', 'W', 'T', 'F', 'S'],
    CN: ['日', '一', '二', '三', '四', '五', '六']
};

extendComponentView({

    type: 'calendar',

    /**
     * top/left line points
     *  @private
     */
    _tlpoints: null,

    /**
     * bottom/right line points
     *  @private
     */
    _blpoints: null,

    /**
     * first day of month
     *  @private
     */
    _firstDayOfMonth: null,

    /**
     * first day point of month
     *  @private
     */
    _firstDayPoints: null,

    render: function (calendarModel, ecModel, api) {

        var group = this.group;

        group.removeAll();

        var coordSys = calendarModel.coordinateSystem;

        // range info
        var rangeData = coordSys.getRangeInfo();
        var orient = coordSys.getOrient();

        this._renderDayRect(calendarModel, rangeData, group);

        // _renderLines must be called prior to following function
        this._renderLines(calendarModel, rangeData, orient, group);

        this._renderYearText(calendarModel, rangeData, orient, group);

        this._renderMonthText(calendarModel, orient, group);

        this._renderWeekText(calendarModel, rangeData, orient, group);
    },

    // render day rect
    _renderDayRect: function (calendarModel, rangeData, group) {
        var coordSys = calendarModel.coordinateSystem;
        var itemRectStyleModel = calendarModel.getModel('itemStyle').getItemStyle();
        var sw = coordSys.getCellWidth();
        var sh = coordSys.getCellHeight();

        for (var i = rangeData.start.time;
            i <= rangeData.end.time;
            i = coordSys.getNextNDay(i, 1).time
        ) {

            var point = coordSys.dataToRect([i], false).tl;

            // every rect
            var rect = new Rect({
                shape: {
                    x: point[0],
                    y: point[1],
                    width: sw,
                    height: sh
                },
                cursor: 'default',
                style: itemRectStyleModel
            });

            group.add(rect);
        }

    },

    // render separate line
    _renderLines: function (calendarModel, rangeData, orient, group) {

        var self = this;

        var coordSys = calendarModel.coordinateSystem;

        var lineStyleModel = calendarModel.getModel('splitLine.lineStyle').getLineStyle();
        var show = calendarModel.get('splitLine.show');

        var lineWidth = lineStyleModel.lineWidth;

        this._tlpoints = [];
        this._blpoints = [];
        this._firstDayOfMonth = [];
        this._firstDayPoints = [];


        var firstDay = rangeData.start;

        for (var i = 0; firstDay.time <= rangeData.end.time; i++) {
            addPoints(firstDay.formatedDate);

            if (i === 0) {
                firstDay = coordSys.getDateInfo(rangeData.start.y + '-' + rangeData.start.m);
            }

            var date = firstDay.date;
            date.setMonth(date.getMonth() + 1);
            firstDay = coordSys.getDateInfo(date);
        }

        addPoints(coordSys.getNextNDay(rangeData.end.time, 1).formatedDate);

        function addPoints(date) {

            self._firstDayOfMonth.push(coordSys.getDateInfo(date));
            self._firstDayPoints.push(coordSys.dataToRect([date], false).tl);

            var points = self._getLinePointsOfOneWeek(calendarModel, date, orient);

            self._tlpoints.push(points[0]);
            self._blpoints.push(points[points.length - 1]);

            show && self._drawSplitline(points, lineStyleModel, group);
        }


        // render top/left line
        show && this._drawSplitline(self._getEdgesPoints(self._tlpoints, lineWidth, orient), lineStyleModel, group);

        // render bottom/right line
        show && this._drawSplitline(self._getEdgesPoints(self._blpoints, lineWidth, orient), lineStyleModel, group);

    },

    // get points at both ends
    _getEdgesPoints: function (points, lineWidth, orient) {
        var rs = [points[0].slice(), points[points.length - 1].slice()];
        var idx = orient === 'horizontal' ? 0 : 1;

        // both ends of the line are extend half lineWidth
        rs[0][idx] = rs[0][idx] - lineWidth / 2;
        rs[1][idx] = rs[1][idx] + lineWidth / 2;

        return rs;
    },

    // render split line
    _drawSplitline: function (points, lineStyleModel, group) {

        var poyline = new Polyline({
            z2: 20,
            shape: {
                points: points
            },
            style: lineStyleModel
        });

        group.add(poyline);
    },

    // render month line of one week points
    _getLinePointsOfOneWeek: function (calendarModel, date, orient) {

        var coordSys = calendarModel.coordinateSystem;
        date = coordSys.getDateInfo(date);

        var points = [];

        for (var i = 0; i < 7; i++) {

            var tmpD = coordSys.getNextNDay(date.time, i);
            var point = coordSys.dataToRect([tmpD.time], false);

            points[2 * tmpD.day] = point.tl;
            points[2 * tmpD.day + 1] = point[orient === 'horizontal' ? 'bl' : 'tr'];
        }

        return points;

    },

    _formatterLabel: function (formatter, params) {

        if (typeof formatter === 'string' && formatter) {
            return formatTplSimple(formatter, params);
        }

        if (typeof formatter === 'function') {
            return formatter(params);
        }

        return params.nameMap;

    },

    _yearTextPositionControl: function (textEl, point, orient, position, margin) {

        point = point.slice();
        var aligns = ['center', 'bottom'];

        if (position === 'bottom') {
            point[1] += margin;
            aligns = ['center', 'top'];
        }
        else if (position === 'left') {
            point[0] -= margin;
        }
        else if (position === 'right') {
            point[0] += margin;
            aligns = ['center', 'top'];
        }
        else { // top
            point[1] -= margin;
        }

        var rotate = 0;
        if (position === 'left' || position === 'right') {
            rotate = Math.PI / 2;
        }

        return {
            rotation: rotate,
            position: point,
            style: {
                textAlign: aligns[0],
                textVerticalAlign: aligns[1]
            }
        };
    },

    // render year
    _renderYearText: function (calendarModel, rangeData, orient, group) {
        var yearLabel = calendarModel.getModel('yearLabel');

        if (!yearLabel.get('show')) {
            return;
        }

        var margin = yearLabel.get('margin');
        var pos = yearLabel.get('position');

        if (!pos) {
            pos = orient !== 'horizontal' ? 'top' : 'left';
        }

        var points = [this._tlpoints[this._tlpoints.length - 1], this._blpoints[0]];
        var xc = (points[0][0] + points[1][0]) / 2;
        var yc = (points[0][1] + points[1][1]) / 2;

        var idx = orient === 'horizontal' ? 0 : 1;

        var posPoints = {
            top: [xc, points[idx][1]],
            bottom: [xc, points[1 - idx][1]],
            left: [points[1 - idx][0], yc],
            right: [points[idx][0], yc]
        };

        var name = rangeData.start.y;

        if (+rangeData.end.y > +rangeData.start.y) {
            name = name + '-' + rangeData.end.y;
        }

        var formatter = yearLabel.get('formatter');

        var params = {
            start: rangeData.start.y,
            end: rangeData.end.y,
            nameMap: name
        };

        var content = this._formatterLabel(formatter, params);

        var yearText = new Text({z2: 30});
        setTextStyle(yearText.style, yearLabel, {text: content}),
        yearText.attr(this._yearTextPositionControl(yearText, posPoints[pos], orient, pos, margin));

        group.add(yearText);
    },

    _monthTextPositionControl: function (point, isCenter, orient, position, margin) {
        var align = 'left';
        var vAlign = 'top';
        var x = point[0];
        var y = point[1];

        if (orient === 'horizontal') {
            y = y + margin;

            if (isCenter) {
                align = 'center';
            }

            if (position === 'start') {
                vAlign = 'bottom';
            }
        }
        else {
            x = x + margin;

            if (isCenter) {
                vAlign = 'middle';
            }

            if (position === 'start') {
                align = 'right';
            }
        }

        return {
            x: x,
            y: y,
            textAlign: align,
            textVerticalAlign: vAlign
        };
    },

    // render month and year text
    _renderMonthText: function (calendarModel, orient, group) {
        var monthLabel = calendarModel.getModel('monthLabel');

        if (!monthLabel.get('show')) {
            return;
        }

        var nameMap = monthLabel.get('nameMap');
        var margin = monthLabel.get('margin');
        var pos = monthLabel.get('position');
        var align = monthLabel.get('align');

        var termPoints = [this._tlpoints, this._blpoints];

        if (isString(nameMap)) {
            nameMap = MONTH_TEXT[nameMap.toUpperCase()] || [];
        }

        var idx = pos === 'start' ? 0 : 1;
        var axis = orient === 'horizontal' ? 0 : 1;
        margin = pos === 'start' ? -margin : margin;
        var isCenter = (align === 'center');

        for (var i = 0; i < termPoints[idx].length - 1; i++) {

            var tmp = termPoints[idx][i].slice();
            var firstDay = this._firstDayOfMonth[i];

            if (isCenter) {
                var firstDayPoints = this._firstDayPoints[i];
                tmp[axis] = (firstDayPoints[axis] + termPoints[0][i + 1][axis]) / 2;
            }

            var formatter = monthLabel.get('formatter');
            var name = nameMap[+firstDay.m - 1];
            var params = {
                yyyy: firstDay.y,
                yy: (firstDay.y + '').slice(2),
                MM: firstDay.m,
                M: +firstDay.m,
                nameMap: name
            };

            var content = this._formatterLabel(formatter, params);

            var monthText = new Text({z2: 30});
            extend(
                setTextStyle(monthText.style, monthLabel, {text: content}),
                this._monthTextPositionControl(tmp, isCenter, orient, pos, margin)
            );

            group.add(monthText);
        }
    },

    _weekTextPositionControl: function (point, orient, position, margin, cellSize) {
        var align = 'center';
        var vAlign = 'middle';
        var x = point[0];
        var y = point[1];
        var isStart = position === 'start';

        if (orient === 'horizontal') {
            x = x + margin + (isStart ? 1 : -1) * cellSize[0] / 2;
            align = isStart ? 'right' : 'left';
        }
        else {
            y = y + margin + (isStart ? 1 : -1) * cellSize[1] / 2;
            vAlign = isStart ? 'bottom' : 'top';
        }

        return {
            x: x,
            y: y,
            textAlign: align,
            textVerticalAlign: vAlign
        };
    },

    // render weeks
    _renderWeekText: function (calendarModel, rangeData, orient, group) {
        var dayLabel = calendarModel.getModel('dayLabel');

        if (!dayLabel.get('show')) {
            return;
        }

        var coordSys = calendarModel.coordinateSystem;
        var pos = dayLabel.get('position');
        var nameMap = dayLabel.get('nameMap');
        var margin = dayLabel.get('margin');
        var firstDayOfWeek = coordSys.getFirstDayOfWeek();

        if (isString(nameMap)) {
            nameMap = WEEK_TEXT[nameMap.toUpperCase()] || [];
        }

        var start = coordSys.getNextNDay(
            rangeData.end.time, (7 - rangeData.lweek)
        ).time;

        var cellSize = [coordSys.getCellWidth(), coordSys.getCellHeight()];
        margin = parsePercent$1(margin, cellSize[orient === 'horizontal' ? 0 : 1]);

        if (pos === 'start') {
            start = coordSys.getNextNDay(
                rangeData.start.time, -(7 + rangeData.fweek)
            ).time;
            margin = -margin;
        }

        for (var i = 0; i < 7; i++) {

            var tmpD = coordSys.getNextNDay(start, i);
            var point = coordSys.dataToRect([tmpD.time], false).center;
            var day = i;
            day = Math.abs((i + firstDayOfWeek) % 7);
            var weekText = new Text({z2: 30});

            extend(
                setTextStyle(weekText.style, dayLabel, {text: nameMap[day]}),
                this._weekTextPositionControl(point, orient, pos, margin, cellSize)
            );
            group.add(weekText);
        }
    }
});

/**
 * @file calendar.js
 * @author dxh
 */

// Model
extendComponentModel({

    type: 'title',

    layoutMode: {type: 'box', ignoreSize: true},

    defaultOption: {
        // 一级层叠
        zlevel: 0,
        // 二级层叠
        z: 6,
        show: true,

        text: '',
        // 超链接跳转
        // link: null,
        // 仅支持self | blank
        target: 'blank',
        subtext: '',

        // 超链接跳转
        // sublink: null,
        // 仅支持self | blank
        subtarget: 'blank',

        // 'center' ¦ 'left' ¦ 'right'
        // ¦ {number}（x坐标，单位px）
        left: 0,
        // 'top' ¦ 'bottom' ¦ 'center'
        // ¦ {number}（y坐标，单位px）
        top: 0,

        // 水平对齐
        // 'auto' | 'left' | 'right' | 'center'
        // 默认根据 left 的位置判断是左对齐还是右对齐
        // textAlign: null
        //
        // 垂直对齐
        // 'auto' | 'top' | 'bottom' | 'middle'
        // 默认根据 top 位置判断是上对齐还是下对齐
        // textBaseline: null

        backgroundColor: 'rgba(0,0,0,0)',

        // 标题边框颜色
        borderColor: '#ccc',

        // 标题边框线宽，单位px，默认为0（无边框）
        borderWidth: 0,

        // 标题内边距，单位px，默认各方向内边距为5，
        // 接受数组分别设定上右下左边距，同css
        padding: 5,

        // 主副标题纵向间隔，单位px，默认为10，
        itemGap: 10,
        textStyle: {
            fontSize: 18,
            fontWeight: 'bolder',
            color: '#333'
        },
        subtextStyle: {
            color: '#aaa'
        }
    }
});

// View
extendComponentView({

    type: 'title',

    render: function (titleModel, ecModel, api) {
        this.group.removeAll();

        if (!titleModel.get('show')) {
            return;
        }

        var group = this.group;

        var textStyleModel = titleModel.getModel('textStyle');
        var subtextStyleModel = titleModel.getModel('subtextStyle');

        var textAlign = titleModel.get('textAlign');
        var textBaseline = titleModel.get('textBaseline');

        var textEl = new Text({
            style: setTextStyle({}, textStyleModel, {
                text: titleModel.get('text'),
                textFill: textStyleModel.getTextColor()
            }, {disableBox: true}),
            z2: 10
        });

        var textRect = textEl.getBoundingRect();

        var subText = titleModel.get('subtext');
        var subTextEl = new Text({
            style: setTextStyle({}, subtextStyleModel, {
                text: subText,
                textFill: subtextStyleModel.getTextColor(),
                y: textRect.height + titleModel.get('itemGap'),
                textVerticalAlign: 'top'
            }, {disableBox: true}),
            z2: 10
        });

        var link = titleModel.get('link');
        var sublink = titleModel.get('sublink');

        textEl.silent = !link;
        subTextEl.silent = !sublink;

        if (link) {
            textEl.on('click', function () {
                window.open(link, '_' + titleModel.get('target'));
            });
        }
        if (sublink) {
            subTextEl.on('click', function () {
                window.open(sublink, '_' + titleModel.get('subtarget'));
            });
        }

        group.add(textEl);
        subText && group.add(subTextEl);
        // If no subText, but add subTextEl, there will be an empty line.

        var groupRect = group.getBoundingRect();
        var layoutOption = titleModel.getBoxLayoutParams();
        layoutOption.width = groupRect.width;
        layoutOption.height = groupRect.height;
        var layoutRect = getLayoutRect(
            layoutOption, {
                width: api.getWidth(),
                height: api.getHeight()
            }, titleModel.get('padding')
        );
        // Adjust text align based on position
        if (!textAlign) {
            // Align left if title is on the left. center and right is same
            textAlign = titleModel.get('left') || titleModel.get('right');
            if (textAlign === 'middle') {
                textAlign = 'center';
            }
            // Adjust layout by text align
            if (textAlign === 'right') {
                layoutRect.x += layoutRect.width;
            }
            else if (textAlign === 'center') {
                layoutRect.x += layoutRect.width / 2;
            }
        }
        if (!textBaseline) {
            textBaseline = titleModel.get('top') || titleModel.get('bottom');
            if (textBaseline === 'center') {
                textBaseline = 'middle';
            }
            if (textBaseline === 'bottom') {
                layoutRect.y += layoutRect.height;
            }
            else if (textBaseline === 'middle') {
                layoutRect.y += layoutRect.height / 2;
            }

            textBaseline = textBaseline || 'top';
        }

        group.attr('position', [layoutRect.x, layoutRect.y]);
        var alignStyle = {
            textAlign: textAlign,
            textVerticalAlign: textBaseline
        };
        textEl.setStyle(alignStyle);
        subTextEl.setStyle(alignStyle);

        // Render background
        // Get groupRect again because textAlign has been changed
        groupRect = group.getBoundingRect();
        var padding = layoutRect.margin;
        var style = titleModel.getItemStyle(['color', 'opacity']);
        style.fill = titleModel.get('backgroundColor');
        var rect = new Rect({
            shape: {
                x: groupRect.x - padding[3],
                y: groupRect.y - padding[0],
                width: groupRect.width + padding[1] + padding[3],
                height: groupRect.height + padding[0] + padding[2],
                r: titleModel.get('borderRadius')
            },
            style: style,
            silent: true
        });
        subPixelOptimizeRect(rect);

        group.add(rect);
    }
});

ComponentModel.registerSubTypeDefaulter('dataZoom', function () {
    // Default 'slider' when no type specified.
    return 'slider';
});

var AXIS_DIMS = ['x', 'y', 'z', 'radius', 'angle', 'single'];
// Supported coords.
var COORDS = ['cartesian2d', 'polar', 'singleAxis'];

/**
 * @param {string} coordType
 * @return {boolean}
 */
function isCoordSupported(coordType) {
    return indexOf(COORDS, coordType) >= 0;
}

/**
 * Create "each" method to iterate names.
 *
 * @pubilc
 * @param  {Array.<string>} names
 * @param  {Array.<string>=} attrs
 * @return {Function}
 */
function createNameEach(names, attrs) {
    names = names.slice();
    var capitalNames = map(names, capitalFirst);
    attrs = (attrs || []).slice();
    var capitalAttrs = map(attrs, capitalFirst);

    return function (callback, context) {
        each$1(names, function (name, index) {
            var nameObj = {name: name, capital: capitalNames[index]};

            for (var j = 0; j < attrs.length; j++) {
                nameObj[attrs[j]] = name + capitalAttrs[j];
            }

            callback.call(context, nameObj);
        });
    };
}

/**
 * Iterate each dimension name.
 *
 * @public
 * @param {Function} callback The parameter is like:
 *                            {
 *                                name: 'angle',
 *                                capital: 'Angle',
 *                                axis: 'angleAxis',
 *                                axisIndex: 'angleAixs',
 *                                index: 'angleIndex'
 *                            }
 * @param {Object} context
 */
var eachAxisDim$1 = createNameEach(AXIS_DIMS, ['axisIndex', 'axis', 'index', 'id']);

/**
 * If tow dataZoomModels has the same axis controlled, we say that they are 'linked'.
 * dataZoomModels and 'links' make up one or more graphics.
 * This function finds the graphic where the source dataZoomModel is in.
 *
 * @public
 * @param {Function} forEachNode Node iterator.
 * @param {Function} forEachEdgeType edgeType iterator
 * @param {Function} edgeIdGetter Giving node and edgeType, return an array of edge id.
 * @return {Function} Input: sourceNode, Output: Like {nodes: [], dims: {}}
 */
function createLinkedNodesFinder(forEachNode, forEachEdgeType, edgeIdGetter) {

    return function (sourceNode) {
        var result = {
            nodes: [],
            records: {} // key: edgeType.name, value: Object (key: edge id, value: boolean).
        };

        forEachEdgeType(function (edgeType) {
            result.records[edgeType.name] = {};
        });

        if (!sourceNode) {
            return result;
        }

        absorb(sourceNode, result);

        var existsLink;
        do {
            existsLink = false;
            forEachNode(processSingleNode);
        }
        while (existsLink);

        function processSingleNode(node) {
            if (!isNodeAbsorded(node, result) && isLinked(node, result)) {
                absorb(node, result);
                existsLink = true;
            }
        }

        return result;
    };

    function isNodeAbsorded(node, result) {
        return indexOf(result.nodes, node) >= 0;
    }

    function isLinked(node, result) {
        var hasLink = false;
        forEachEdgeType(function (edgeType) {
            each$1(edgeIdGetter(node, edgeType) || [], function (edgeId) {
                result.records[edgeType.name][edgeId] && (hasLink = true);
            });
        });
        return hasLink;
    }

    function absorb(node, result) {
        result.nodes.push(node);
        forEachEdgeType(function (edgeType) {
            each$1(edgeIdGetter(node, edgeType) || [], function (edgeId) {
                result.records[edgeType.name][edgeId] = true;
            });
        });
    }
}

var each$23 = each$1;
var asc$1 = asc;

/**
 * Operate single axis.
 * One axis can only operated by one axis operator.
 * Different dataZoomModels may be defined to operate the same axis.
 * (i.e. 'inside' data zoom and 'slider' data zoom components)
 * So dataZoomModels share one axisProxy in that case.
 *
 * @class
 */
var AxisProxy = function (dimName, axisIndex, dataZoomModel, ecModel) {

    /**
     * @private
     * @type {string}
     */
    this._dimName = dimName;

    /**
     * @private
     */
    this._axisIndex = axisIndex;

    /**
     * @private
     * @type {Array.<number>}
     */
    this._valueWindow;

    /**
     * @private
     * @type {Array.<number>}
     */
    this._percentWindow;

    /**
     * @private
     * @type {Array.<number>}
     */
    this._dataExtent;

    /**
     * {minSpan, maxSpan, minValueSpan, maxValueSpan}
     * @private
     * @type {Object}
     */
    this._minMaxSpan;

    /**
     * @readOnly
     * @type {module: echarts/model/Global}
     */
    this.ecModel = ecModel;

    /**
     * @private
     * @type {module: echarts/component/dataZoom/DataZoomModel}
     */
    this._dataZoomModel = dataZoomModel;

    // /**
    //  * @readOnly
    //  * @private
    //  */
    // this.hasSeriesStacked;
};

AxisProxy.prototype = {

    constructor: AxisProxy,

    /**
     * Whether the axisProxy is hosted by dataZoomModel.
     *
     * @public
     * @param {module: echarts/component/dataZoom/DataZoomModel} dataZoomModel
     * @return {boolean}
     */
    hostedBy: function (dataZoomModel) {
        return this._dataZoomModel === dataZoomModel;
    },

    /**
     * @return {Array.<number>} Value can only be NaN or finite value.
     */
    getDataValueWindow: function () {
        return this._valueWindow.slice();
    },

    /**
     * @return {Array.<number>}
     */
    getDataPercentWindow: function () {
        return this._percentWindow.slice();
    },

    /**
     * @public
     * @param {number} axisIndex
     * @return {Array} seriesModels
     */
    getTargetSeriesModels: function () {
        var seriesModels = [];
        var ecModel = this.ecModel;

        ecModel.eachSeries(function (seriesModel) {
            if (isCoordSupported(seriesModel.get('coordinateSystem'))) {
                var dimName = this._dimName;
                var axisModel = ecModel.queryComponents({
                    mainType: dimName + 'Axis',
                    index: seriesModel.get(dimName + 'AxisIndex'),
                    id: seriesModel.get(dimName + 'AxisId')
                })[0];
                if (this._axisIndex === (axisModel && axisModel.componentIndex)) {
                    seriesModels.push(seriesModel);
                }
            }
        }, this);

        return seriesModels;
    },

    getAxisModel: function () {
        return this.ecModel.getComponent(this._dimName + 'Axis', this._axisIndex);
    },

    getOtherAxisModel: function () {
        var axisDim = this._dimName;
        var ecModel = this.ecModel;
        var axisModel = this.getAxisModel();
        var isCartesian = axisDim === 'x' || axisDim === 'y';
        var otherAxisDim;
        var coordSysIndexName;
        if (isCartesian) {
            coordSysIndexName = 'gridIndex';
            otherAxisDim = axisDim === 'x' ? 'y' : 'x';
        }
        else {
            coordSysIndexName = 'polarIndex';
            otherAxisDim = axisDim === 'angle' ? 'radius' : 'angle';
        }
        var foundOtherAxisModel;
        ecModel.eachComponent(otherAxisDim + 'Axis', function (otherAxisModel) {
            if ((otherAxisModel.get(coordSysIndexName) || 0)
                === (axisModel.get(coordSysIndexName) || 0)
            ) {
                foundOtherAxisModel = otherAxisModel;
            }
        });
        return foundOtherAxisModel;
    },

    getMinMaxSpan: function () {
        return clone(this._minMaxSpan);
    },

    /**
     * Only calculate by given range and this._dataExtent, do not change anything.
     *
     * @param {Object} opt
     * @param {number} [opt.start]
     * @param {number} [opt.end]
     * @param {number} [opt.startValue]
     * @param {number} [opt.endValue]
     */
    calculateDataWindow: function (opt) {
        var dataExtent = this._dataExtent;
        var axisModel = this.getAxisModel();
        var scale = axisModel.axis.scale;
        var rangePropMode = this._dataZoomModel.getRangePropMode();
        var percentExtent = [0, 100];
        var percentWindow = [
            opt.start,
            opt.end
        ];
        var valueWindow = [];

        each$23(['startValue', 'endValue'], function (prop) {
            valueWindow.push(opt[prop] != null ? scale.parse(opt[prop]) : null);
        });

        // Normalize bound.
        each$23([0, 1], function (idx) {
            var boundValue = valueWindow[idx];
            var boundPercent = percentWindow[idx];

            // Notice: dataZoom is based either on `percentProp` ('start', 'end') or
            // on `valueProp` ('startValue', 'endValue'). The former one is suitable
            // for cases that a dataZoom component controls multiple axes with different
            // unit or extent, and the latter one is suitable for accurate zoom by pixel
            // (e.g., in dataZoomSelect). `valueProp` can be calculated from `percentProp`,
            // but it is awkward that `percentProp` can not be obtained from `valueProp`
            // accurately (because all of values that are overflow the `dataExtent` will
            // be calculated to percent '100%'). So we have to use
            // `dataZoom.getRangePropMode()` to mark which prop is used.
            // `rangePropMode` is updated only when setOption or dispatchAction, otherwise
            // it remains its original value.

            if (rangePropMode[idx] === 'percent') {
                if (boundPercent == null) {
                    boundPercent = percentExtent[idx];
                }
                // Use scale.parse to math round for category or time axis.
                boundValue = scale.parse(linearMap(
                    boundPercent, percentExtent, dataExtent, true
                ));
            }
            else {
                // Calculating `percent` from `value` may be not accurate, because
                // This calculation can not be inversed, because all of values that
                // are overflow the `dataExtent` will be calculated to percent '100%'
                boundPercent = linearMap(
                    boundValue, dataExtent, percentExtent, true
                );
            }

            // valueWindow[idx] = round(boundValue);
            // percentWindow[idx] = round(boundPercent);
            valueWindow[idx] = boundValue;
            percentWindow[idx] = boundPercent;
        });

        return {
            valueWindow: asc$1(valueWindow),
            percentWindow: asc$1(percentWindow)
        };
    },

    /**
     * Notice: reset should not be called before series.restoreData() called,
     * so it is recommanded to be called in "process stage" but not "model init
     * stage".
     *
     * @param {module: echarts/component/dataZoom/DataZoomModel} dataZoomModel
     */
    reset: function (dataZoomModel) {
        if (dataZoomModel !== this._dataZoomModel) {
            return;
        }

        var targetSeries = this.getTargetSeriesModels();
        // Culculate data window and data extent, and record them.
        this._dataExtent = calculateDataExtent(this, this._dimName, targetSeries);

        // this.hasSeriesStacked = false;
        // each(targetSeries, function (series) {
            // var data = series.getData();
            // var dataDim = data.mapDimension(this._dimName);
            // var stackedDimension = data.getCalculationInfo('stackedDimension');
            // if (stackedDimension && stackedDimension === dataDim) {
                // this.hasSeriesStacked = true;
            // }
        // }, this);

        var dataWindow = this.calculateDataWindow(dataZoomModel.option);

        this._valueWindow = dataWindow.valueWindow;
        this._percentWindow = dataWindow.percentWindow;

        setMinMaxSpan(this);

        // Update axis setting then.
        setAxisModel(this);
    },

    /**
     * @param {module: echarts/component/dataZoom/DataZoomModel} dataZoomModel
     */
    restore: function (dataZoomModel) {
        if (dataZoomModel !== this._dataZoomModel) {
            return;
        }

        this._valueWindow = this._percentWindow = null;
        setAxisModel(this, true);
    },

    /**
     * @param {module: echarts/component/dataZoom/DataZoomModel} dataZoomModel
     */
    filterData: function (dataZoomModel, api) {
        if (dataZoomModel !== this._dataZoomModel) {
            return;
        }

        var axisDim = this._dimName;
        var seriesModels = this.getTargetSeriesModels();
        var filterMode = dataZoomModel.get('filterMode');
        var valueWindow = this._valueWindow;

        if (filterMode === 'none') {
            return;
        }

        // FIXME
        // Toolbox may has dataZoom injected. And if there are stacked bar chart
        // with NaN data, NaN will be filtered and stack will be wrong.
        // So we need to force the mode to be set empty.
        // In fect, it is not a big deal that do not support filterMode-'filter'
        // when using toolbox#dataZoom, utill tooltip#dataZoom support "single axis
        // selection" some day, which might need "adapt to data extent on the
        // otherAxis", which is disabled by filterMode-'empty'.
        // But currently, stack has been fixed to based on value but not index,
        // so this is not an issue any more.
        // var otherAxisModel = this.getOtherAxisModel();
        // if (dataZoomModel.get('$fromToolbox')
        //     && otherAxisModel
        //     && otherAxisModel.hasSeriesStacked
        // ) {
        //     filterMode = 'empty';
        // }

        // TODO
        // filterMode 'weakFilter' and 'empty' is not optimized for huge data yet.

        // Process series data
        each$23(seriesModels, function (seriesModel) {
            var seriesData = seriesModel.getData();
            var dataDims = seriesData.mapDimension(axisDim, true);

            if (filterMode === 'weakFilter') {
                seriesData.filterSelf(function (dataIndex) {
                    var leftOut;
                    var rightOut;
                    var hasValue;
                    for (var i = 0; i < dataDims.length; i++) {
                        var value = seriesData.get(dataDims[i], dataIndex);
                        var thisHasValue = !isNaN(value);
                        var thisLeftOut = value < valueWindow[0];
                        var thisRightOut = value > valueWindow[1];
                        if (thisHasValue && !thisLeftOut && !thisRightOut) {
                            return true;
                        }
                        thisHasValue && (hasValue = true);
                        thisLeftOut && (leftOut = true);
                        thisRightOut && (rightOut = true);
                    }
                    // If both left out and right out, do not filter.
                    return hasValue && leftOut && rightOut;
                });
            }
            else {
                each$23(dataDims, function (dim) {
                    if (filterMode === 'empty') {
                        seriesModel.setData(
                            seriesData.map(dim, function (value) {
                                return !isInWindow(value) ? NaN : value;
                            })
                        );
                    }
                    else {
                        var range = {};
                        range[dim] = valueWindow;

                        // console.time('select');
                        seriesData.selectRange(range);
                        // console.timeEnd('select');
                    }
                });
            }

            each$23(dataDims, function (dim) {
                seriesData.setApproximateExtent(valueWindow, dim);
            });
        });

        function isInWindow(value) {
            return value >= valueWindow[0] && value <= valueWindow[1];
        }
    }
};

function calculateDataExtent(axisProxy, axisDim, seriesModels) {
    var dataExtent = [Infinity, -Infinity];

    each$23(seriesModels, function (seriesModel) {
        var seriesData = seriesModel.getData();
        if (seriesData) {
            each$23(seriesData.mapDimension(axisDim, true), function (dim) {
                var seriesExtent = seriesData.getApproximateExtent(dim);
                seriesExtent[0] < dataExtent[0] && (dataExtent[0] = seriesExtent[0]);
                seriesExtent[1] > dataExtent[1] && (dataExtent[1] = seriesExtent[1]);
            });
        }
    });

    if (dataExtent[1] < dataExtent[0]) {
        dataExtent = [NaN, NaN];
    }

    // It is important to get "consistent" extent when more then one axes is
    // controlled by a `dataZoom`, otherwise those axes will not be synchronized
    // when zooming. But it is difficult to know what is "consistent", considering
    // axes have different type or even different meanings (For example, two
    // time axes are used to compare data of the same date in different years).
    // So basically dataZoom just obtains extent by series.data (in category axis
    // extent can be obtained from axis.data).
    // Nevertheless, user can set min/max/scale on axes to make extent of axes
    // consistent.
    fixExtentByAxis(axisProxy, dataExtent);

    return dataExtent;
}

function fixExtentByAxis(axisProxy, dataExtent) {
    var axisModel = axisProxy.getAxisModel();
    var min = axisModel.getMin(true);

    // For category axis, if min/max/scale are not set, extent is determined
    // by axis.data by default.
    var isCategoryAxis = axisModel.get('type') === 'category';
    var axisDataLen = isCategoryAxis && axisModel.getCategories().length;

    if (min != null && min !== 'dataMin' && typeof min !== 'function') {
        dataExtent[0] = min;
    }
    else if (isCategoryAxis) {
        dataExtent[0] = axisDataLen > 0 ? 0 : NaN;
    }

    var max = axisModel.getMax(true);
    if (max != null && max !== 'dataMax' && typeof max !== 'function') {
        dataExtent[1] = max;
    }
    else if (isCategoryAxis) {
        dataExtent[1] = axisDataLen > 0 ? axisDataLen - 1 : NaN;
    }

    if (!axisModel.get('scale', true)) {
        dataExtent[0] > 0 && (dataExtent[0] = 0);
        dataExtent[1] < 0 && (dataExtent[1] = 0);
    }

    // For value axis, if min/max/scale are not set, we just use the extent obtained
    // by series data, which may be a little different from the extent calculated by
    // `axisHelper.getScaleExtent`. But the different just affects the experience a
    // little when zooming. So it will not be fixed until some users require it strongly.

    return dataExtent;
}

function setAxisModel(axisProxy, isRestore) {
    var axisModel = axisProxy.getAxisModel();

    var percentWindow = axisProxy._percentWindow;
    var valueWindow = axisProxy._valueWindow;

    if (!percentWindow) {
        return;
    }

    // [0, 500]: arbitrary value, guess axis extent.
    var precision = getPixelPrecision(valueWindow, [0, 500]);
    precision = Math.min(precision, 20);
    // isRestore or isFull
    var useOrigin = isRestore || (percentWindow[0] === 0 && percentWindow[1] === 100);

    axisModel.setRange(
        useOrigin ? null : +valueWindow[0].toFixed(precision),
        useOrigin ? null : +valueWindow[1].toFixed(precision)
    );
}

function setMinMaxSpan(axisProxy) {
    var minMaxSpan = axisProxy._minMaxSpan = {};
    var dataZoomModel = axisProxy._dataZoomModel;

    each$23(['min', 'max'], function (minMax) {
        minMaxSpan[minMax + 'Span'] = dataZoomModel.get(minMax + 'Span');

        // minValueSpan and maxValueSpan has higher priority than minSpan and maxSpan
        var valueSpan = dataZoomModel.get(minMax + 'ValueSpan');

        if (valueSpan != null) {
            minMaxSpan[minMax + 'ValueSpan'] = valueSpan;
            valueSpan = axisProxy.getAxisModel().axis.scale.parse(valueSpan);

            if (valueSpan != null) {
                var dataExtent = axisProxy._dataExtent;
                minMaxSpan[minMax + 'Span'] = linearMap(
                    dataExtent[0] + valueSpan, dataExtent, [0, 100], true
                );
            }
        }
    });
}

var each$22 = each$1;
var eachAxisDim = eachAxisDim$1;

var DataZoomModel = extendComponentModel({

    type: 'dataZoom',

    dependencies: [
        'xAxis', 'yAxis', 'zAxis', 'radiusAxis', 'angleAxis', 'singleAxis', 'series'
    ],

    /**
     * @protected
     */
    defaultOption: {
        zlevel: 0,
        z: 4,                   // Higher than normal component (z: 2).
        orient: null,           // Default auto by axisIndex. Possible value: 'horizontal', 'vertical'.
        xAxisIndex: null,       // Default the first horizontal category axis.
        yAxisIndex: null,       // Default the first vertical category axis.

        filterMode: 'filter',   // Possible values: 'filter' or 'empty' or 'weakFilter'.
                                // 'filter': data items which are out of window will be removed. This option is
                                //          applicable when filtering outliers. For each data item, it will be
                                //          filtered if one of the relevant dimensions is out of the window.
                                // 'weakFilter': data items which are out of window will be removed. This option
                                //          is applicable when filtering outliers. For each data item, it will be
                                //          filtered only if all  of the relevant dimensions are out of the same
                                //          side of the window.
                                // 'empty': data items which are out of window will be set to empty.
                                //          This option is applicable when user should not neglect
                                //          that there are some data items out of window.
                                // 'none': Do not filter.
                                // Taking line chart as an example, line will be broken in
                                // the filtered points when filterModel is set to 'empty', but
                                // be connected when set to 'filter'.

        throttle: null,         // Dispatch action by the fixed rate, avoid frequency.
                                // default 100. Do not throttle when use null/undefined.
                                // If animation === true and animationDurationUpdate > 0,
                                // default value is 100, otherwise 20.
        start: 0,               // Start percent. 0 ~ 100
        end: 100,               // End percent. 0 ~ 100
        startValue: null,       // Start value. If startValue specified, start is ignored.
        endValue: null,         // End value. If endValue specified, end is ignored.
        minSpan: null,          // 0 ~ 100
        maxSpan: null,          // 0 ~ 100
        minValueSpan: null,     // The range of dataZoom can not be smaller than that.
        maxValueSpan: null,     // The range of dataZoom can not be larger than that.
        rangeMode: null         // Array, can be 'value' or 'percent'.
    },

    /**
     * @override
     */
    init: function (option, parentModel, ecModel) {

        /**
         * key like x_0, y_1
         * @private
         * @type {Object}
         */
        this._dataIntervalByAxis = {};

        /**
         * @private
         */
        this._dataInfo = {};

        /**
         * key like x_0, y_1
         * @private
         */
        this._axisProxies = {};

        /**
         * @readOnly
         */
        this.textStyleModel;

        /**
         * @private
         */
        this._autoThrottle = true;

        /**
         * 'percent' or 'value'
         * @private
         */
        this._rangePropMode = ['percent', 'percent'];

        var rawOption = retrieveRaw(option);

        this.mergeDefaultAndTheme(option, ecModel);

        this.doInit(rawOption);
    },

    /**
     * @override
     */
    mergeOption: function (newOption) {
        var rawOption = retrieveRaw(newOption);

        //FIX #2591
        merge(this.option, newOption, true);

        this.doInit(rawOption);
    },

    /**
     * @protected
     */
    doInit: function (rawOption) {
        var thisOption = this.option;

        // Disable realtime view update if canvas is not supported.
        if (!env$1.canvasSupported) {
            thisOption.realtime = false;
        }

        this._setDefaultThrottle(rawOption);

        updateRangeUse(this, rawOption);

        each$22([['start', 'startValue'], ['end', 'endValue']], function (names, index) {
            // start/end has higher priority over startValue/endValue if they
            // both set, but we should make chart.setOption({endValue: 1000})
            // effective, rather than chart.setOption({endValue: 1000, end: null}).
            if (this._rangePropMode[index] === 'value') {
                thisOption[names[0]] = null;
            }
            // Otherwise do nothing and use the merge result.
        }, this);

        this.textStyleModel = this.getModel('textStyle');

        this._resetTarget();

        this._giveAxisProxies();
    },

    /**
     * @private
     */
    _giveAxisProxies: function () {
        var axisProxies = this._axisProxies;

        this.eachTargetAxis(function (dimNames, axisIndex, dataZoomModel, ecModel) {
            var axisModel = this.dependentModels[dimNames.axis][axisIndex];

            // If exists, share axisProxy with other dataZoomModels.
            var axisProxy = axisModel.__dzAxisProxy || (
                // Use the first dataZoomModel as the main model of axisProxy.
                axisModel.__dzAxisProxy = new AxisProxy(
                    dimNames.name, axisIndex, this, ecModel
                )
            );
            // FIXME
            // dispose __dzAxisProxy

            axisProxies[dimNames.name + '_' + axisIndex] = axisProxy;
        }, this);
    },

    /**
     * @private
     */
    _resetTarget: function () {
        var thisOption = this.option;

        var autoMode = this._judgeAutoMode();

        eachAxisDim(function (dimNames) {
            var axisIndexName = dimNames.axisIndex;
            thisOption[axisIndexName] = normalizeToArray(
                thisOption[axisIndexName]
            );
        }, this);

        if (autoMode === 'axisIndex') {
            this._autoSetAxisIndex();
        }
        else if (autoMode === 'orient') {
            this._autoSetOrient();
        }
    },

    /**
     * @private
     */
    _judgeAutoMode: function () {
        // Auto set only works for setOption at the first time.
        // The following is user's reponsibility. So using merged
        // option is OK.
        var thisOption = this.option;

        var hasIndexSpecified = false;
        eachAxisDim(function (dimNames) {
            // When user set axisIndex as a empty array, we think that user specify axisIndex
            // but do not want use auto mode. Because empty array may be encountered when
            // some error occured.
            if (thisOption[dimNames.axisIndex] != null) {
                hasIndexSpecified = true;
            }
        }, this);

        var orient = thisOption.orient;

        if (orient == null && hasIndexSpecified) {
            return 'orient';
        }
        else if (!hasIndexSpecified) {
            if (orient == null) {
                thisOption.orient = 'horizontal';
            }
            return 'axisIndex';
        }
    },

    /**
     * @private
     */
    _autoSetAxisIndex: function () {
        var autoAxisIndex = true;
        var orient = this.get('orient', true);
        var thisOption = this.option;
        var dependentModels = this.dependentModels;

        if (autoAxisIndex) {
            // Find axis that parallel to dataZoom as default.
            var dimName = orient === 'vertical' ? 'y' : 'x';

            if (dependentModels[dimName + 'Axis'].length) {
                thisOption[dimName + 'AxisIndex'] = [0];
                autoAxisIndex = false;
            }
            else {
                each$22(dependentModels.singleAxis, function (singleAxisModel) {
                    if (autoAxisIndex && singleAxisModel.get('orient', true) === orient) {
                        thisOption.singleAxisIndex = [singleAxisModel.componentIndex];
                        autoAxisIndex = false;
                    }
                });
            }
        }

        if (autoAxisIndex) {
            // Find the first category axis as default. (consider polar)
            eachAxisDim(function (dimNames) {
                if (!autoAxisIndex) {
                    return;
                }
                var axisIndices = [];
                var axisModels = this.dependentModels[dimNames.axis];
                if (axisModels.length && !axisIndices.length) {
                    for (var i = 0, len = axisModels.length; i < len; i++) {
                        if (axisModels[i].get('type') === 'category') {
                            axisIndices.push(i);
                        }
                    }
                }
                thisOption[dimNames.axisIndex] = axisIndices;
                if (axisIndices.length) {
                    autoAxisIndex = false;
                }
            }, this);
        }

        if (autoAxisIndex) {
            // FIXME
            // 这里是兼容ec2的写法（没指定xAxisIndex和yAxisIndex时把scatter和双数值轴折柱纳入dataZoom控制），
            // 但是实际是否需要Grid.js#getScaleByOption来判断（考虑time，log等axis type）？

            // If both dataZoom.xAxisIndex and dataZoom.yAxisIndex is not specified,
            // dataZoom component auto adopts series that reference to
            // both xAxis and yAxis which type is 'value'.
            this.ecModel.eachSeries(function (seriesModel) {
                if (this._isSeriesHasAllAxesTypeOf(seriesModel, 'value')) {
                    eachAxisDim(function (dimNames) {
                        var axisIndices = thisOption[dimNames.axisIndex];

                        var axisIndex = seriesModel.get(dimNames.axisIndex);
                        var axisId = seriesModel.get(dimNames.axisId);

                        var axisModel = seriesModel.ecModel.queryComponents({
                            mainType: dimNames.axis,
                            index: axisIndex,
                            id: axisId
                        })[0];

                        if (__DEV__) {
                            if (!axisModel) {
                                throw new Error(
                                    dimNames.axis + ' "' + retrieve(
                                        axisIndex,
                                        axisId,
                                        0
                                    ) + '" not found'
                                );
                            }
                        }
                        axisIndex = axisModel.componentIndex;

                        if (indexOf(axisIndices, axisIndex) < 0) {
                            axisIndices.push(axisIndex);
                        }
                    });
                }
            }, this);
        }
    },

    /**
     * @private
     */
    _autoSetOrient: function () {
        var dim;

        // Find the first axis
        this.eachTargetAxis(function (dimNames) {
            !dim && (dim = dimNames.name);
        }, this);

        this.option.orient = dim === 'y' ? 'vertical' : 'horizontal';
    },

    /**
     * @private
     */
    _isSeriesHasAllAxesTypeOf: function (seriesModel, axisType) {
        // FIXME
        // 需要series的xAxisIndex和yAxisIndex都首先自动设置上。
        // 例如series.type === scatter时。

        var is = true;
        eachAxisDim(function (dimNames) {
            var seriesAxisIndex = seriesModel.get(dimNames.axisIndex);
            var axisModel = this.dependentModels[dimNames.axis][seriesAxisIndex];

            if (!axisModel || axisModel.get('type') !== axisType) {
                is = false;
            }
        }, this);
        return is;
    },

    /**
     * @private
     */
    _setDefaultThrottle: function (rawOption) {
        // When first time user set throttle, auto throttle ends.
        if (rawOption.hasOwnProperty('throttle')) {
            this._autoThrottle = false;
        }
        if (this._autoThrottle) {
            var globalOption = this.ecModel.option;
            this.option.throttle =
                (globalOption.animation && globalOption.animationDurationUpdate > 0)
                ? 100 : 20;
        }
    },

    /**
     * @public
     */
    getFirstTargetAxisModel: function () {
        var firstAxisModel;
        eachAxisDim(function (dimNames) {
            if (firstAxisModel == null) {
                var indices = this.get(dimNames.axisIndex);
                if (indices.length) {
                    firstAxisModel = this.dependentModels[dimNames.axis][indices[0]];
                }
            }
        }, this);

        return firstAxisModel;
    },

    /**
     * @public
     * @param {Function} callback param: axisModel, dimNames, axisIndex, dataZoomModel, ecModel
     */
    eachTargetAxis: function (callback, context) {
        var ecModel = this.ecModel;
        eachAxisDim(function (dimNames) {
            each$22(
                this.get(dimNames.axisIndex),
                function (axisIndex) {
                    callback.call(context, dimNames, axisIndex, this, ecModel);
                },
                this
            );
        }, this);
    },

    /**
     * @param {string} dimName
     * @param {number} axisIndex
     * @return {module:echarts/component/dataZoom/AxisProxy} If not found, return null/undefined.
     */
    getAxisProxy: function (dimName, axisIndex) {
        return this._axisProxies[dimName + '_' + axisIndex];
    },

    /**
     * @param {string} dimName
     * @param {number} axisIndex
     * @return {module:echarts/model/Model} If not found, return null/undefined.
     */
    getAxisModel: function (dimName, axisIndex) {
        var axisProxy = this.getAxisProxy(dimName, axisIndex);
        return axisProxy && axisProxy.getAxisModel();
    },

    /**
     * If not specified, set to undefined.
     *
     * @public
     * @param {Object} opt
     * @param {number} [opt.start]
     * @param {number} [opt.end]
     * @param {number} [opt.startValue]
     * @param {number} [opt.endValue]
     * @param {boolean} [ignoreUpdateRangeUsg=false]
     */
    setRawRange: function (opt, ignoreUpdateRangeUsg) {
        var option = this.option;
        each$22([['start', 'startValue'], ['end', 'endValue']], function (names) {
            // If only one of 'start' and 'startValue' is not null/undefined, the other
            // should be cleared, which enable clear the option.
            // If both of them are not set, keep option with the original value, which
            // enable use only set start but not set end when calling `dispatchAction`.
            // The same as 'end' and 'endValue'.
            if (opt[names[0]] != null || opt[names[1]] != null) {
                option[names[0]] = opt[names[0]];
                option[names[1]] = opt[names[1]];
            }
        }, this);

        !ignoreUpdateRangeUsg && updateRangeUse(this, opt);
    },

    /**
     * @public
     * @return {Array.<number>} [startPercent, endPercent]
     */
    getPercentRange: function () {
        var axisProxy = this.findRepresentativeAxisProxy();
        if (axisProxy) {
            return axisProxy.getDataPercentWindow();
        }
    },

    /**
     * @public
     * For example, chart.getModel().getComponent('dataZoom').getValueRange('y', 0);
     *
     * @param {string} [axisDimName]
     * @param {number} [axisIndex]
     * @return {Array.<number>} [startValue, endValue] value can only be '-' or finite number.
     */
    getValueRange: function (axisDimName, axisIndex) {
        if (axisDimName == null && axisIndex == null) {
            var axisProxy = this.findRepresentativeAxisProxy();
            if (axisProxy) {
                return axisProxy.getDataValueWindow();
            }
        }
        else {
            return this.getAxisProxy(axisDimName, axisIndex).getDataValueWindow();
        }
    },

    /**
     * @public
     * @param {module:echarts/model/Model} [axisModel] If axisModel given, find axisProxy
     *      corresponding to the axisModel
     * @return {module:echarts/component/dataZoom/AxisProxy}
     */
    findRepresentativeAxisProxy: function (axisModel) {
        if (axisModel) {
            return axisModel.__dzAxisProxy;
        }

        // Find the first hosted axisProxy
        var axisProxies = this._axisProxies;
        for (var key in axisProxies) {
            if (axisProxies.hasOwnProperty(key) && axisProxies[key].hostedBy(this)) {
                return axisProxies[key];
            }
        }

        // If no hosted axis find not hosted axisProxy.
        // Consider this case: dataZoomModel1 and dataZoomModel2 control the same axis,
        // and the option.start or option.end settings are different. The percentRange
        // should follow axisProxy.
        // (We encounter this problem in toolbox data zoom.)
        for (var key in axisProxies) {
            if (axisProxies.hasOwnProperty(key) && !axisProxies[key].hostedBy(this)) {
                return axisProxies[key];
            }
        }
    },

    /**
     * @return {Array.<string>}
     */
    getRangePropMode: function () {
        return this._rangePropMode.slice();
    }

});

function retrieveRaw(option) {
    var ret = {};
    each$22(
        ['start', 'end', 'startValue', 'endValue', 'throttle'],
        function (name) {
            option.hasOwnProperty(name) && (ret[name] = option[name]);
        }
    );
    return ret;
}

function updateRangeUse(dataZoomModel, rawOption) {
    var rangePropMode = dataZoomModel._rangePropMode;
    var rangeModeInOption = dataZoomModel.get('rangeMode');

    each$22([['start', 'startValue'], ['end', 'endValue']], function (names, index) {
        var percentSpecified = rawOption[names[0]] != null;
        var valueSpecified = rawOption[names[1]] != null;
        if (percentSpecified && !valueSpecified) {
            rangePropMode[index] = 'percent';
        }
        else if (!percentSpecified && valueSpecified) {
            rangePropMode[index] = 'value';
        }
        else if (rangeModeInOption) {
            rangePropMode[index] = rangeModeInOption[index];
        }
        else if (percentSpecified) { // percentSpecified && valueSpecified
            rangePropMode[index] = 'percent';
        }
        // else remain its original setting.
    });
}

var DataZoomView = Component.extend({

    type: 'dataZoom',

    render: function (dataZoomModel, ecModel, api, payload) {
        this.dataZoomModel = dataZoomModel;
        this.ecModel = ecModel;
        this.api = api;
    },

    /**
     * Find the first target coordinate system.
     *
     * @protected
     * @return {Object} {
     *                   grid: [
     *                       {model: coord0, axisModels: [axis1, axis3], coordIndex: 1},
     *                       {model: coord1, axisModels: [axis0, axis2], coordIndex: 0},
     *                       ...
     *                   ],  // cartesians must not be null/undefined.
     *                   polar: [
     *                       {model: coord0, axisModels: [axis4], coordIndex: 0},
     *                       ...
     *                   ],  // polars must not be null/undefined.
     *                   singleAxis: [
     *                       {model: coord0, axisModels: [], coordIndex: 0}
     *                   ]
     */
    getTargetCoordInfo: function () {
        var dataZoomModel = this.dataZoomModel;
        var ecModel = this.ecModel;
        var coordSysLists = {};

        dataZoomModel.eachTargetAxis(function (dimNames, axisIndex) {
            var axisModel = ecModel.getComponent(dimNames.axis, axisIndex);
            if (axisModel) {
                var coordModel = axisModel.getCoordSysModel();
                coordModel && save(
                    coordModel,
                    axisModel,
                    coordSysLists[coordModel.mainType] || (coordSysLists[coordModel.mainType] = []),
                    coordModel.componentIndex
                );
            }
        }, this);

        function save(coordModel, axisModel, store, coordIndex) {
            var item;
            for (var i = 0; i < store.length; i++) {
                if (store[i].model === coordModel) {
                    item = store[i];
                    break;
                }
            }
            if (!item) {
                store.push(item = {
                    model: coordModel, axisModels: [], coordIndex: coordIndex
                });
            }
            item.axisModels.push(axisModel);
        }

        return coordSysLists;
    }

});

var SliderZoomModel = DataZoomModel.extend({

    type: 'dataZoom.slider',

    layoutMode: 'box',

    /**
     * @protected
     */
    defaultOption: {
        show: true,

        // ph => placeholder. Using placehoder here because
        // deault value can only be drived in view stage.
        right: 'ph',  // Default align to grid rect.
        top: 'ph',    // Default align to grid rect.
        width: 'ph',  // Default align to grid rect.
        height: 'ph', // Default align to grid rect.
        left: null,   // Default align to grid rect.
        bottom: null, // Default align to grid rect.

        backgroundColor: 'rgba(47,69,84,0)',    // Background of slider zoom component.
        // dataBackgroundColor: '#ddd',         // Background coor of data shadow and border of box,
                                                // highest priority, remain for compatibility of
                                                // previous version, but not recommended any more.
        dataBackground: {
            lineStyle: {
                color: '#2f4554',
                width: 0.5,
                opacity: 0.3
            },
            areaStyle: {
                color: 'rgba(47,69,84,0.3)',
                opacity: 0.3
            }
        },
        borderColor: '#ddd',                    // border color of the box. For compatibility,
                                                // if dataBackgroundColor is set, borderColor
                                                // is ignored.

        fillerColor: 'rgba(167,183,204,0.4)',     // Color of selected area.
        // handleColor: 'rgba(89,170,216,0.95)',     // Color of handle.
        // handleIcon: 'path://M4.9,17.8c0-1.4,4.5-10.5,5.5-12.4c0-0.1,0.6-1.1,0.9-1.1c0.4,0,0.9,1,0.9,1.1c1.1,2.2,5.4,11,5.4,12.4v17.8c0,1.5-0.6,2.1-1.3,2.1H6.1c-0.7,0-1.3-0.6-1.3-2.1V17.8z',
        handleIcon: 'M8.2,13.6V3.9H6.3v9.7H3.1v14.9h3.3v9.7h1.8v-9.7h3.3V13.6H8.2z M9.7,24.4H4.8v-1.4h4.9V24.4z M9.7,19.1H4.8v-1.4h4.9V19.1z',
        // Percent of the slider height
        handleSize: '100%',

        handleStyle: {
            color: '#a7b7cc'
        },

        labelPrecision: null,
        labelFormatter: null,
        showDetail: true,
        showDataShadow: 'auto',                 // Default auto decision.
        realtime: true,
        zoomLock: false,                        // Whether disable zoom.
        textStyle: {
            color: '#333'
        }
    }

});

var Rect$2 = Rect;
var linearMap$2 = linearMap;
var asc$2 = asc;
var bind$4 = bind;
var each$24 = each$1;

// Constants
var DEFAULT_LOCATION_EDGE_GAP = 7;
var DEFAULT_FRAME_BORDER_WIDTH = 1;
var DEFAULT_FILLER_SIZE = 30;
var HORIZONTAL = 'horizontal';
var VERTICAL = 'vertical';
var LABEL_GAP = 5;
var SHOW_DATA_SHADOW_SERIES_TYPE = ['line', 'bar', 'candlestick', 'scatter'];

var SliderZoomView = DataZoomView.extend({

    type: 'dataZoom.slider',

    init: function (ecModel, api) {

        /**
         * @private
         * @type {Object}
         */
        this._displayables = {};

        /**
         * @private
         * @type {string}
         */
        this._orient;

        /**
         * [0, 100]
         * @private
         */
        this._range;

        /**
         * [coord of the first handle, coord of the second handle]
         * @private
         */
        this._handleEnds;

        /**
         * [length, thick]
         * @private
         * @type {Array.<number>}
         */
        this._size;

        /**
         * @private
         * @type {number}
         */
        this._handleWidth;

        /**
         * @private
         * @type {number}
         */
        this._handleHeight;

        /**
         * @private
         */
        this._location;

        /**
         * @private
         */
        this._dragging;

        /**
         * @private
         */
        this._dataShadowInfo;

        this.api = api;
    },

    /**
     * @override
     */
    render: function (dataZoomModel, ecModel, api, payload) {
        SliderZoomView.superApply(this, 'render', arguments);

        createOrUpdate(
            this,
            '_dispatchZoomAction',
            this.dataZoomModel.get('throttle'),
            'fixRate'
        );

        this._orient = dataZoomModel.get('orient');

        if (this.dataZoomModel.get('show') === false) {
            this.group.removeAll();
            return;
        }

        // Notice: this._resetInterval() should not be executed when payload.type
        // is 'dataZoom', origin this._range should be maintained, otherwise 'pan'
        // or 'zoom' info will be missed because of 'throttle' of this.dispatchAction,
        if (!payload || payload.type !== 'dataZoom' || payload.from !== this.uid) {
            this._buildView();
        }

        this._updateView();
    },

    /**
     * @override
     */
    remove: function () {
        SliderZoomView.superApply(this, 'remove', arguments);
        clear(this, '_dispatchZoomAction');
    },

    /**
     * @override
     */
    dispose: function () {
        SliderZoomView.superApply(this, 'dispose', arguments);
        clear(this, '_dispatchZoomAction');
    },

    _buildView: function () {
        var thisGroup = this.group;

        thisGroup.removeAll();

        this._resetLocation();
        this._resetInterval();

        var barGroup = this._displayables.barGroup = new Group();

        this._renderBackground();

        this._renderHandle();

        this._renderDataShadow();

        thisGroup.add(barGroup);

        this._positionGroup();
    },

    /**
     * @private
     */
    _resetLocation: function () {
        var dataZoomModel = this.dataZoomModel;
        var api = this.api;

        // If some of x/y/width/height are not specified,
        // auto-adapt according to target grid.
        var coordRect = this._findCoordRect();
        var ecSize = {width: api.getWidth(), height: api.getHeight()};
        // Default align by coordinate system rect.
        var positionInfo = this._orient === HORIZONTAL
            ? {
                // Why using 'right', because right should be used in vertical,
                // and it is better to be consistent for dealing with position param merge.
                right: ecSize.width - coordRect.x - coordRect.width,
                top: (ecSize.height - DEFAULT_FILLER_SIZE - DEFAULT_LOCATION_EDGE_GAP),
                width: coordRect.width,
                height: DEFAULT_FILLER_SIZE
            }
            : { // vertical
                right: DEFAULT_LOCATION_EDGE_GAP,
                top: coordRect.y,
                width: DEFAULT_FILLER_SIZE,
                height: coordRect.height
            };

        // Do not write back to option and replace value 'ph', because
        // the 'ph' value should be recalculated when resize.
        var layoutParams = getLayoutParams(dataZoomModel.option);

        // Replace the placeholder value.
        each$1(['right', 'top', 'width', 'height'], function (name) {
            if (layoutParams[name] === 'ph') {
                layoutParams[name] = positionInfo[name];
            }
        });

        var layoutRect = getLayoutRect(
            layoutParams,
            ecSize,
            dataZoomModel.padding
        );

        this._location = {x: layoutRect.x, y: layoutRect.y};
        this._size = [layoutRect.width, layoutRect.height];
        this._orient === VERTICAL && this._size.reverse();
    },

    /**
     * @private
     */
    _positionGroup: function () {
        var thisGroup = this.group;
        var location = this._location;
        var orient = this._orient;

        // Just use the first axis to determine mapping.
        var targetAxisModel = this.dataZoomModel.getFirstTargetAxisModel();
        var inverse = targetAxisModel && targetAxisModel.get('inverse');

        var barGroup = this._displayables.barGroup;
        var otherAxisInverse = (this._dataShadowInfo || {}).otherAxisInverse;

        // Transform barGroup.
        barGroup.attr(
            (orient === HORIZONTAL && !inverse)
            ? {scale: otherAxisInverse ? [1, 1] : [1, -1]}
            : (orient === HORIZONTAL && inverse)
            ? {scale: otherAxisInverse ? [-1, 1] : [-1, -1]}
            : (orient === VERTICAL && !inverse)
            ? {scale: otherAxisInverse ? [1, -1] : [1, 1], rotation: Math.PI / 2}
            // Dont use Math.PI, considering shadow direction.
            : {scale: otherAxisInverse ? [-1, -1] : [-1, 1], rotation: Math.PI / 2}
        );

        // Position barGroup
        var rect = thisGroup.getBoundingRect([barGroup]);
        thisGroup.attr('position', [location.x - rect.x, location.y - rect.y]);
    },

    /**
     * @private
     */
    _getViewExtent: function () {
        return [0, this._size[0]];
    },

    _renderBackground: function () {
        var dataZoomModel = this.dataZoomModel;
        var size = this._size;
        var barGroup = this._displayables.barGroup;

        barGroup.add(new Rect$2({
            silent: true,
            shape: {
                x: 0, y: 0, width: size[0], height: size[1]
            },
            style: {
                fill: dataZoomModel.get('backgroundColor')
            },
            z2: -40
        }));

        // Click panel, over shadow, below handles.
        barGroup.add(new Rect$2({
            shape: {
                x: 0, y: 0, width: size[0], height: size[1]
            },
            style: {
                fill: 'transparent'
            },
            z2: 0,
            onclick: bind(this._onClickPanelClick, this)
        }));
    },

    _renderDataShadow: function () {
        var info = this._dataShadowInfo = this._prepareDataShadowInfo();

        if (!info) {
            return;
        }

        var size = this._size;
        var seriesModel = info.series;
        var data = seriesModel.getRawData();

        var otherDim = seriesModel.getShadowDim
            ? seriesModel.getShadowDim() // @see candlestick
            : info.otherDim;

        if (otherDim == null) {
            return;
        }

        var otherDataExtent = data.getDataExtent(otherDim);
        // Nice extent.
        var otherOffset = (otherDataExtent[1] - otherDataExtent[0]) * 0.3;
        otherDataExtent = [
            otherDataExtent[0] - otherOffset,
            otherDataExtent[1] + otherOffset
        ];
        var otherShadowExtent = [0, size[1]];

        var thisShadowExtent = [0, size[0]];

        var areaPoints = [[size[0], 0], [0, 0]];
        var linePoints = [];
        var step = thisShadowExtent[1] / (data.count() - 1);
        var thisCoord = 0;

        // Optimize for large data shadow
        var stride = Math.round(data.count() / size[0]);
        var lastIsEmpty;
        data.each([otherDim], function (value, index) {
            if (stride > 0 && (index % stride)) {
                thisCoord += step;
                return;
            }

            // FIXME
            // Should consider axis.min/axis.max when drawing dataShadow.

            // FIXME
            // 应该使用统一的空判断？还是在list里进行空判断？
            var isEmpty = value == null || isNaN(value) || value === '';
            // See #4235.
            var otherCoord = isEmpty
                ? 0 : linearMap$2(value, otherDataExtent, otherShadowExtent, true);

            // Attempt to draw data shadow precisely when there are empty value.
            if (isEmpty && !lastIsEmpty && index) {
                areaPoints.push([areaPoints[areaPoints.length - 1][0], 0]);
                linePoints.push([linePoints[linePoints.length - 1][0], 0]);
            }
            else if (!isEmpty && lastIsEmpty) {
                areaPoints.push([thisCoord, 0]);
                linePoints.push([thisCoord, 0]);
            }

            areaPoints.push([thisCoord, otherCoord]);
            linePoints.push([thisCoord, otherCoord]);

            thisCoord += step;
            lastIsEmpty = isEmpty;
        });

        var dataZoomModel = this.dataZoomModel;
        // var dataBackgroundModel = dataZoomModel.getModel('dataBackground');
        this._displayables.barGroup.add(new Polygon({
            shape: {points: areaPoints},
            style: defaults(
                {fill: dataZoomModel.get('dataBackgroundColor')},
                dataZoomModel.getModel('dataBackground.areaStyle').getAreaStyle()
            ),
            silent: true,
            z2: -20
        }));
        this._displayables.barGroup.add(new Polyline({
            shape: {points: linePoints},
            style: dataZoomModel.getModel('dataBackground.lineStyle').getLineStyle(),
            silent: true,
            z2: -19
        }));
    },

    _prepareDataShadowInfo: function () {
        var dataZoomModel = this.dataZoomModel;
        var showDataShadow = dataZoomModel.get('showDataShadow');

        if (showDataShadow === false) {
            return;
        }

        // Find a representative series.
        var result;
        var ecModel = this.ecModel;

        dataZoomModel.eachTargetAxis(function (dimNames, axisIndex) {
            var seriesModels = dataZoomModel
                .getAxisProxy(dimNames.name, axisIndex)
                .getTargetSeriesModels();

            each$1(seriesModels, function (seriesModel) {
                if (result) {
                    return;
                }

                if (showDataShadow !== true && indexOf(
                        SHOW_DATA_SHADOW_SERIES_TYPE, seriesModel.get('type')
                    ) < 0
                ) {
                    return;
                }

                var thisAxis = ecModel.getComponent(dimNames.axis, axisIndex).axis;
                var otherDim = getOtherDim(dimNames.name);
                var otherAxisInverse;
                var coordSys = seriesModel.coordinateSystem;

                if (otherDim != null && coordSys.getOtherAxis) {
                    otherAxisInverse = coordSys.getOtherAxis(thisAxis).inverse;
                }

                otherDim = seriesModel.getData().mapDimension(otherDim);

                result = {
                    thisAxis: thisAxis,
                    series: seriesModel,
                    thisDim: dimNames.name,
                    otherDim: otherDim,
                    otherAxisInverse: otherAxisInverse
                };

            }, this);

        }, this);

        return result;
    },

    _renderHandle: function () {
        var displaybles = this._displayables;
        var handles = displaybles.handles = [];
        var handleLabels = displaybles.handleLabels = [];
        var barGroup = this._displayables.barGroup;
        var size = this._size;
        var dataZoomModel = this.dataZoomModel;

        barGroup.add(displaybles.filler = new Rect$2({
            draggable: true,
            cursor: getCursor(this._orient),
            drift: bind$4(this._onDragMove, this, 'all'),
            onmousemove: function (e) {
                // Fot mobile devicem, prevent screen slider on the button.
                stop(e.event);
            },
            ondragstart: bind$4(this._showDataInfo, this, true),
            ondragend: bind$4(this._onDragEnd, this),
            onmouseover: bind$4(this._showDataInfo, this, true),
            onmouseout: bind$4(this._showDataInfo, this, false),
            style: {
                fill: dataZoomModel.get('fillerColor'),
                textPosition : 'inside'
            }
        }));

        // Frame border.
        barGroup.add(new Rect$2(subPixelOptimizeRect({
            silent: true,
            shape: {
                x: 0,
                y: 0,
                width: size[0],
                height: size[1]
            },
            style: {
                stroke: dataZoomModel.get('dataBackgroundColor')
                    || dataZoomModel.get('borderColor'),
                lineWidth: DEFAULT_FRAME_BORDER_WIDTH,
                fill: 'rgba(0,0,0,0)'
            }
        })));

        each$24([0, 1], function (handleIndex) {
            var path = createIcon(
                dataZoomModel.get('handleIcon'),
                {
                    cursor: getCursor(this._orient),
                    draggable: true,
                    drift: bind$4(this._onDragMove, this, handleIndex),
                    onmousemove: function (e) {
                        // Fot mobile devicem, prevent screen slider on the button.
                        stop(e.event);
                    },
                    ondragend: bind$4(this._onDragEnd, this),
                    onmouseover: bind$4(this._showDataInfo, this, true),
                    onmouseout: bind$4(this._showDataInfo, this, false)
                },
                {x: -1, y: 0, width: 2, height: 2}
            );

            var bRect = path.getBoundingRect();
            this._handleHeight = parsePercent$1(dataZoomModel.get('handleSize'), this._size[1]);
            this._handleWidth = bRect.width / bRect.height * this._handleHeight;

            path.setStyle(dataZoomModel.getModel('handleStyle').getItemStyle());
            var handleColor = dataZoomModel.get('handleColor');
            // Compatitable with previous version
            if (handleColor != null) {
                path.style.fill = handleColor;
            }

            barGroup.add(handles[handleIndex] = path);

            var textStyleModel = dataZoomModel.textStyleModel;

            this.group.add(
                handleLabels[handleIndex] = new Text({
                silent: true,
                invisible: true,
                style: {
                    x: 0, y: 0, text: '',
                    textVerticalAlign: 'middle',
                    textAlign: 'center',
                    textFill: textStyleModel.getTextColor(),
                    textFont: textStyleModel.getFont()
                },
                z2: 10
            }));

        }, this);
    },

    /**
     * @private
     */
    _resetInterval: function () {
        var range = this._range = this.dataZoomModel.getPercentRange();
        var viewExtent = this._getViewExtent();

        this._handleEnds = [
            linearMap$2(range[0], [0, 100], viewExtent, true),
            linearMap$2(range[1], [0, 100], viewExtent, true)
        ];
    },

    /**
     * @private
     * @param {(number|string)} handleIndex 0 or 1 or 'all'
     * @param {number} delta
     */
    _updateInterval: function (handleIndex, delta) {
        var dataZoomModel = this.dataZoomModel;
        var handleEnds = this._handleEnds;
        var viewExtend = this._getViewExtent();
        var minMaxSpan = dataZoomModel.findRepresentativeAxisProxy().getMinMaxSpan();
        var percentExtent = [0, 100];

        sliderMove(
            delta,
            handleEnds,
            viewExtend,
            dataZoomModel.get('zoomLock') ? 'all' : handleIndex,
            minMaxSpan.minSpan != null
                ? linearMap$2(minMaxSpan.minSpan, percentExtent, viewExtend, true) : null,
            minMaxSpan.maxSpan != null
                ? linearMap$2(minMaxSpan.maxSpan, percentExtent, viewExtend, true) : null
        );

        this._range = asc$2([
            linearMap$2(handleEnds[0], viewExtend, percentExtent, true),
            linearMap$2(handleEnds[1], viewExtend, percentExtent, true)
        ]);
    },

    /**
     * @private
     */
    _updateView: function (nonRealtime) {
        var displaybles = this._displayables;
        var handleEnds = this._handleEnds;
        var handleInterval = asc$2(handleEnds.slice());
        var size = this._size;

        each$24([0, 1], function (handleIndex) {
            // Handles
            var handle = displaybles.handles[handleIndex];
            var handleHeight = this._handleHeight;
            handle.attr({
                scale: [handleHeight / 2, handleHeight / 2],
                position: [handleEnds[handleIndex], size[1] / 2 - handleHeight / 2]
            });
        }, this);

        // Filler
        displaybles.filler.setShape({
            x: handleInterval[0],
            y: 0,
            width: handleInterval[1] - handleInterval[0],
            height: size[1]
        });

        this._updateDataInfo(nonRealtime);
    },

    /**
     * @private
     */
    _updateDataInfo: function (nonRealtime) {
        var dataZoomModel = this.dataZoomModel;
        var displaybles = this._displayables;
        var handleLabels = displaybles.handleLabels;
        var orient = this._orient;
        var labelTexts = ['', ''];

        // FIXME
        // date型，支持formatter，autoformatter（ec2 date.getAutoFormatter）
        if (dataZoomModel.get('showDetail')) {
            var axisProxy = dataZoomModel.findRepresentativeAxisProxy();

            if (axisProxy) {
                var axis = axisProxy.getAxisModel().axis;
                var range = this._range;

                var dataInterval = nonRealtime
                    // See #4434, data and axis are not processed and reset yet in non-realtime mode.
                    ? axisProxy.calculateDataWindow({
                        start: range[0], end: range[1]
                    }).valueWindow
                    : axisProxy.getDataValueWindow();

                labelTexts = [
                    this._formatLabel(dataInterval[0], axis),
                    this._formatLabel(dataInterval[1], axis)
                ];
            }
        }

        var orderedHandleEnds = asc$2(this._handleEnds.slice());

        setLabel.call(this, 0);
        setLabel.call(this, 1);

        function setLabel(handleIndex) {
            // Label
            // Text should not transform by barGroup.
            // Ignore handlers transform
            var barTransform = getTransform(
                displaybles.handles[handleIndex].parent, this.group
            );
            var direction = transformDirection(
                handleIndex === 0 ? 'right' : 'left', barTransform
            );
            var offset = this._handleWidth / 2 + LABEL_GAP;
            var textPoint = applyTransform$1(
                [
                    orderedHandleEnds[handleIndex] + (handleIndex === 0 ? -offset : offset),
                    this._size[1] / 2
                ],
                barTransform
            );
            handleLabels[handleIndex].setStyle({
                x: textPoint[0],
                y: textPoint[1],
                textVerticalAlign: orient === HORIZONTAL ? 'middle' : direction,
                textAlign: orient === HORIZONTAL ? direction : 'center',
                text: labelTexts[handleIndex]
            });
        }
    },

    /**
     * @private
     */
    _formatLabel: function (value, axis) {
        var dataZoomModel = this.dataZoomModel;
        var labelFormatter = dataZoomModel.get('labelFormatter');

        var labelPrecision = dataZoomModel.get('labelPrecision');
        if (labelPrecision == null || labelPrecision === 'auto') {
            labelPrecision = axis.getPixelPrecision();
        }

        var valueStr = (value == null || isNaN(value))
            ? ''
            // FIXME Glue code
            : (axis.type === 'category' || axis.type === 'time')
                ? axis.scale.getLabel(Math.round(value))
                // param of toFixed should less then 20.
                : value.toFixed(Math.min(labelPrecision, 20));

        return isFunction$1(labelFormatter)
            ? labelFormatter(value, valueStr)
            : isString(labelFormatter)
            ? labelFormatter.replace('{value}', valueStr)
            : valueStr;
    },

    /**
     * @private
     * @param {boolean} showOrHide true: show, false: hide
     */
    _showDataInfo: function (showOrHide) {
        // Always show when drgging.
        showOrHide = this._dragging || showOrHide;

        var handleLabels = this._displayables.handleLabels;
        handleLabels[0].attr('invisible', !showOrHide);
        handleLabels[1].attr('invisible', !showOrHide);
    },

    _onDragMove: function (handleIndex, dx, dy) {
        this._dragging = true;

        // Transform dx, dy to bar coordination.
        var barTransform = this._displayables.barGroup.getLocalTransform();
        var vertex = applyTransform$1([dx, dy], barTransform, true);

        this._updateInterval(handleIndex, vertex[0]);

        var realtime = this.dataZoomModel.get('realtime');

        this._updateView(!realtime);

        realtime && this._dispatchZoomAction();
    },

    _onDragEnd: function () {
        this._dragging = false;
        this._showDataInfo(false);

        // While in realtime mode and stream mode, dispatch action when
        // drag end will cause the whole view rerender, which is unnecessary.
        var realtime = this.dataZoomModel.get('realtime');
        !realtime && this._dispatchZoomAction();
    },

    _onClickPanelClick: function (e) {
        var size = this._size;
        var localPoint = this._displayables.barGroup.transformCoordToLocal(e.offsetX, e.offsetY);

        if (localPoint[0] < 0 || localPoint[0] > size[0]
            || localPoint[1] < 0 || localPoint[1] > size[1]
        ) {
            return;
        }

        var handleEnds = this._handleEnds;
        var center = (handleEnds[0] + handleEnds[1]) / 2;

        this._updateInterval('all', localPoint[0] - center);
        this._updateView();
        this._dispatchZoomAction();
    },

    /**
     * This action will be throttled.
     * @private
     */
    _dispatchZoomAction: function () {
        var range = this._range;

        this.api.dispatchAction({
            type: 'dataZoom',
            from: this.uid,
            dataZoomId: this.dataZoomModel.id,
            start: range[0],
            end: range[1]
        });
    },

    /**
     * @private
     */
    _findCoordRect: function () {
        // Find the grid coresponding to the first axis referred by dataZoom.
        var rect;
        each$24(this.getTargetCoordInfo(), function (coordInfoList) {
            if (!rect && coordInfoList.length) {
                var coordSys = coordInfoList[0].model.coordinateSystem;
                rect = coordSys.getRect && coordSys.getRect();
            }
        });
        if (!rect) {
            var width = this.api.getWidth();
            var height = this.api.getHeight();
            rect = {
                x: width * 0.2,
                y: height * 0.2,
                width: width * 0.6,
                height: height * 0.6
            };
        }

        return rect;
    }

});

function getOtherDim(thisDim) {
    // FIXME
    // 这个逻辑和getOtherAxis里一致，但是写在这里是否不好
    var map$$1 = {x: 'y', y: 'x', radius: 'angle', angle: 'radius'};
    return map$$1[thisDim];
}

function getCursor(orient) {
    return orient === 'vertical' ? 'ns-resize' : 'ew-resize';
}

DataZoomModel.extend({

    type: 'dataZoom.inside',

    /**
     * @protected
     */
    defaultOption: {
        disabled: false,   // Whether disable this inside zoom.
        zoomLock: false,   // Whether disable zoom but only pan.
        zoomOnMouseWheel: true, // Can be: true / false / 'shift' / 'ctrl' / 'alt'.
        moveOnMouseMove: true,   // Can be: true / false / 'shift' / 'ctrl' / 'alt'.
        preventDefaultMouseMove: true
    }
});

// Only create one roam controller for each coordinate system.
// one roam controller might be refered by two inside data zoom
// components (for example, one for x and one for y). When user
// pan or zoom, only dispatch one action for those data zoom
// components.

var curry$6 = curry;

var ATTR$1 = '\0_ec_dataZoom_roams';


/**
 * @public
 * @param {module:echarts/ExtensionAPI} api
 * @param {Object} dataZoomInfo
 * @param {string} dataZoomInfo.coordId
 * @param {Function} dataZoomInfo.containsPoint
 * @param {Array.<string>} dataZoomInfo.allCoordIds
 * @param {string} dataZoomInfo.dataZoomId
 * @param {number} dataZoomInfo.throttleRate
 * @param {Function} dataZoomInfo.panGetRange
 * @param {Function} dataZoomInfo.zoomGetRange
 * @param {boolean} [dataZoomInfo.zoomLock]
 * @param {boolean} [dataZoomInfo.disabled]
 */
function register$2(api, dataZoomInfo) {
    var store = giveStore(api);
    var theDataZoomId = dataZoomInfo.dataZoomId;
    var theCoordId = dataZoomInfo.coordId;

    // Do clean when a dataZoom changes its target coordnate system.
    // Avoid memory leak, dispose all not-used-registered.
    each$1(store, function (record, coordId) {
        var dataZoomInfos = record.dataZoomInfos;
        if (dataZoomInfos[theDataZoomId]
            && indexOf(dataZoomInfo.allCoordIds, theCoordId) < 0
        ) {
            delete dataZoomInfos[theDataZoomId];
            record.count--;
        }
    });

    cleanStore(store);

    var record = store[theCoordId];
    // Create if needed.
    if (!record) {
        record = store[theCoordId] = {
            coordId: theCoordId,
            dataZoomInfos: {},
            count: 0
        };
        record.controller = createController(api, record);
        record.dispatchAction = curry(dispatchAction$1, api);
    }

    // Update reference of dataZoom.
    !(record.dataZoomInfos[theDataZoomId]) && record.count++;
    record.dataZoomInfos[theDataZoomId] = dataZoomInfo;

    var controllerParams = mergeControllerParams(record.dataZoomInfos);
    record.controller.enable(controllerParams.controlType, controllerParams.opt);

    // Consider resize, area should be always updated.
    record.controller.setPointerChecker(dataZoomInfo.containsPoint);

    // Update throttle.
    createOrUpdate(
        record,
        'dispatchAction',
        dataZoomInfo.throttleRate,
        'fixRate'
    );
}

/**
 * @public
 * @param {module:echarts/ExtensionAPI} api
 * @param {string} dataZoomId
 */
function unregister$1(api, dataZoomId) {
    var store = giveStore(api);

    each$1(store, function (record) {
        record.controller.dispose();
        var dataZoomInfos = record.dataZoomInfos;
        if (dataZoomInfos[dataZoomId]) {
            delete dataZoomInfos[dataZoomId];
            record.count--;
        }
    });

    cleanStore(store);
}

/**
 * @public
 */
function shouldRecordRange(payload, dataZoomId) {
    if (payload && payload.type === 'dataZoom' && payload.batch) {
        for (var i = 0, len = payload.batch.length; i < len; i++) {
            if (payload.batch[i].dataZoomId === dataZoomId) {
                return false;
            }
        }
    }
    return true;
}

/**
 * @public
 */
function generateCoordId(coordModel) {
    return coordModel.type + '\0_' + coordModel.id;
}

/**
 * Key: coordId, value: {dataZoomInfos: [], count, controller}
 * @type {Array.<Object>}
 */
function giveStore(api) {
    // Mount store on zrender instance, so that we do not
    // need to worry about dispose.
    var zr = api.getZr();
    return zr[ATTR$1] || (zr[ATTR$1] = {});
}

function createController(api, newRecord) {
    var controller = new RoamController(api.getZr());
    controller.on('pan', curry$6(onPan, newRecord));
    controller.on('zoom', curry$6(onZoom, newRecord));

    return controller;
}

function cleanStore(store) {
    each$1(store, function (record, coordId) {
        if (!record.count) {
            record.controller.dispose();
            delete store[coordId];
        }
    });
}

function onPan(record, dx, dy, oldX, oldY, newX, newY) {
    wrapAndDispatch(record, function (info) {
        return info.panGetRange(record.controller, dx, dy, oldX, oldY, newX, newY);
    });
}

function onZoom(record, scale, mouseX, mouseY) {
    wrapAndDispatch(record, function (info) {
        return info.zoomGetRange(record.controller, scale, mouseX, mouseY);
    });
}

function wrapAndDispatch(record, getRange) {
    var batch = [];

    each$1(record.dataZoomInfos, function (info) {
        var range = getRange(info);
        !info.disabled && range && batch.push({
            dataZoomId: info.dataZoomId,
            start: range[0],
            end: range[1]
        });
    });

    record.dispatchAction(batch);
}

/**
 * This action will be throttled.
 */
function dispatchAction$1(api, batch) {
    api.dispatchAction({
        type: 'dataZoom',
        batch: batch
    });
}

/**
 * Merge roamController settings when multiple dataZooms share one roamController.
 */
function mergeControllerParams(dataZoomInfos) {
    var controlType;
    var opt = {};
    // DO NOT use reserved word (true, false, undefined) as key literally. Even if encapsulated
    // as string, it is probably revert to reserved word by compress tool. See #7411.
    var prefix = 'type_';
    var typePriority = {
        'type_true': 2,
        'type_move': 1,
        'type_false': 0,
        'type_undefined': -1
    };
    each$1(dataZoomInfos, function (dataZoomInfo) {
        var oneType = dataZoomInfo.disabled ? false : dataZoomInfo.zoomLock ? 'move' : true;
        if (typePriority[prefix + oneType] > typePriority[prefix + controlType]) {
            controlType = oneType;
        }
        // Do not support that different 'shift'/'ctrl'/'alt' setting used in one coord sys.
        extend(opt, dataZoomInfo.roamControllerOpt);
    });

    return {
        controlType: controlType,
        opt: opt
    };
}

var bind$5 = bind;

var InsideZoomView = DataZoomView.extend({

    type: 'dataZoom.inside',

    /**
     * @override
     */
    init: function (ecModel, api) {
        /**
         * 'throttle' is used in this.dispatchAction, so we save range
         * to avoid missing some 'pan' info.
         * @private
         * @type {Array.<number>}
         */
        this._range;
    },

    /**
     * @override
     */
    render: function (dataZoomModel, ecModel, api, payload) {
        InsideZoomView.superApply(this, 'render', arguments);

        // Notice: origin this._range should be maintained, and should not be re-fetched
        // from dataZoomModel when payload.type is 'dataZoom', otherwise 'pan' or 'zoom'
        // info will be missed because of 'throttle' of this.dispatchAction.
        if (shouldRecordRange(payload, dataZoomModel.id)) {
            this._range = dataZoomModel.getPercentRange();
        }

        // Reset controllers.
        each$1(this.getTargetCoordInfo(), function (coordInfoList, coordSysName) {

            var allCoordIds = map(coordInfoList, function (coordInfo) {
                return generateCoordId(coordInfo.model);
            });

            each$1(coordInfoList, function (coordInfo) {
                var coordModel = coordInfo.model;
                var dataZoomOption = dataZoomModel.option;

                register$2(
                    api,
                    {
                        coordId: generateCoordId(coordModel),
                        allCoordIds: allCoordIds,
                        containsPoint: function (e, x, y) {
                            return coordModel.coordinateSystem.containPoint([x, y]);
                        },
                        dataZoomId: dataZoomModel.id,
                        throttleRate: dataZoomModel.get('throttle', true),
                        panGetRange: bind$5(this._onPan, this, coordInfo, coordSysName),
                        zoomGetRange: bind$5(this._onZoom, this, coordInfo, coordSysName),
                        zoomLock: dataZoomOption.zoomLock,
                        disabled: dataZoomOption.disabled,
                        roamControllerOpt: {
                            zoomOnMouseWheel: dataZoomOption.zoomOnMouseWheel,
                            moveOnMouseMove: dataZoomOption.moveOnMouseMove,
                            preventDefaultMouseMove: dataZoomOption.preventDefaultMouseMove
                        }
                    }
                );
            }, this);

        }, this);
    },

    /**
     * @override
     */
    dispose: function () {
        unregister$1(this.api, this.dataZoomModel.id);
        InsideZoomView.superApply(this, 'dispose', arguments);
        this._range = null;
    },

    /**
     * @private
     */
    _onPan: function (coordInfo, coordSysName, controller, dx, dy, oldX, oldY, newX, newY) {
        var range = this._range.slice();

        // Calculate transform by the first axis.
        var axisModel = coordInfo.axisModels[0];
        if (!axisModel) {
            return;
        }

        var directionInfo = getDirectionInfo[coordSysName](
            [oldX, oldY], [newX, newY], axisModel, controller, coordInfo
        );

        var percentDelta = directionInfo.signal
            * (range[1] - range[0])
            * directionInfo.pixel / directionInfo.pixelLength;

        sliderMove(percentDelta, range, [0, 100], 'all');

        return (this._range = range);
    },

    /**
     * @private
     */
    _onZoom: function (coordInfo, coordSysName, controller, scale, mouseX, mouseY) {
        var range = this._range.slice();

        // Calculate transform by the first axis.
        var axisModel = coordInfo.axisModels[0];
        if (!axisModel) {
            return;
        }

        var directionInfo = getDirectionInfo[coordSysName](
            null, [mouseX, mouseY], axisModel, controller, coordInfo
        );
        var percentPoint = (
            directionInfo.signal > 0
                ? (directionInfo.pixelStart + directionInfo.pixelLength - directionInfo.pixel)
                : (directionInfo.pixel - directionInfo.pixelStart)
            ) / directionInfo.pixelLength * (range[1] - range[0]) + range[0];

        scale = Math.max(1 / scale, 0);
        range[0] = (range[0] - percentPoint) * scale + percentPoint;
        range[1] = (range[1] - percentPoint) * scale + percentPoint;

        // Restrict range.
        var minMaxSpan = this.dataZoomModel.findRepresentativeAxisProxy().getMinMaxSpan();

        sliderMove(0, range, [0, 100], 0, minMaxSpan.minSpan, minMaxSpan.maxSpan);

        return (this._range = range);
    }

});

var getDirectionInfo = {

    grid: function (oldPoint, newPoint, axisModel, controller, coordInfo) {
        var axis = axisModel.axis;
        var ret = {};
        var rect = coordInfo.model.coordinateSystem.getRect();
        oldPoint = oldPoint || [0, 0];

        if (axis.dim === 'x') {
            ret.pixel = newPoint[0] - oldPoint[0];
            ret.pixelLength = rect.width;
            ret.pixelStart = rect.x;
            ret.signal = axis.inverse ? 1 : -1;
        }
        else { // axis.dim === 'y'
            ret.pixel = newPoint[1] - oldPoint[1];
            ret.pixelLength = rect.height;
            ret.pixelStart = rect.y;
            ret.signal = axis.inverse ? -1 : 1;
        }

        return ret;
    },

    polar: function (oldPoint, newPoint, axisModel, controller, coordInfo) {
        var axis = axisModel.axis;
        var ret = {};
        var polar = coordInfo.model.coordinateSystem;
        var radiusExtent = polar.getRadiusAxis().getExtent();
        var angleExtent = polar.getAngleAxis().getExtent();

        oldPoint = oldPoint ? polar.pointToCoord(oldPoint) : [0, 0];
        newPoint = polar.pointToCoord(newPoint);

        if (axisModel.mainType === 'radiusAxis') {
            ret.pixel = newPoint[0] - oldPoint[0];
            // ret.pixelLength = Math.abs(radiusExtent[1] - radiusExtent[0]);
            // ret.pixelStart = Math.min(radiusExtent[0], radiusExtent[1]);
            ret.pixelLength = radiusExtent[1] - radiusExtent[0];
            ret.pixelStart = radiusExtent[0];
            ret.signal = axis.inverse ? 1 : -1;
        }
        else { // 'angleAxis'
            ret.pixel = newPoint[1] - oldPoint[1];
            // ret.pixelLength = Math.abs(angleExtent[1] - angleExtent[0]);
            // ret.pixelStart = Math.min(angleExtent[0], angleExtent[1]);
            ret.pixelLength = angleExtent[1] - angleExtent[0];
            ret.pixelStart = angleExtent[0];
            ret.signal = axis.inverse ? -1 : 1;
        }

        return ret;
    },

    singleAxis: function (oldPoint, newPoint, axisModel, controller, coordInfo) {
        var axis = axisModel.axis;
        var rect = coordInfo.model.coordinateSystem.getRect();
        var ret = {};

        oldPoint = oldPoint || [0, 0];

        if (axis.orient === 'horizontal') {
            ret.pixel = newPoint[0] - oldPoint[0];
            ret.pixelLength = rect.width;
            ret.pixelStart = rect.x;
            ret.signal = axis.inverse ? 1 : -1;
        }
        else { // 'vertical'
            ret.pixel = newPoint[1] - oldPoint[1];
            ret.pixelLength = rect.height;
            ret.pixelStart = rect.y;
            ret.signal = axis.inverse ? -1 : 1;
        }

        return ret;
    }
};

registerProcessor({

    getTargetSeries: function (ecModel) {
        var seriesModelMap = createHashMap();

        ecModel.eachComponent('dataZoom', function (dataZoomModel) {
            dataZoomModel.eachTargetAxis(function (dimNames, axisIndex, dataZoomModel) {
                var axisProxy = dataZoomModel.getAxisProxy(dimNames.name, axisIndex);
                each$1(axisProxy.getTargetSeriesModels(), function (seriesModel) {
                    seriesModelMap.set(seriesModel.uid, seriesModel);
                });
            });
        });

        return seriesModelMap;
    },

    isOverallFilter: true,

    // Consider appendData, where filter should be performed. Because data process is
    // in block mode currently, it is not need to worry about that the overallProgress
    // execute every frame.
    overallReset: function (ecModel, api) {
        ecModel.eachComponent('dataZoom', function (dataZoomModel) {
            // We calculate window and reset axis here but not in model
            // init stage and not after action dispatch handler, because
            // reset should be called after seriesData.restoreData.
            dataZoomModel.eachTargetAxis(function (dimNames, axisIndex, dataZoomModel) {
                dataZoomModel.getAxisProxy(dimNames.name, axisIndex).reset(dataZoomModel, api);
            });

            // Caution: data zoom filtering is order sensitive when using
            // percent range and no min/max/scale set on axis.
            // For example, we have dataZoom definition:
            // [
            //      {xAxisIndex: 0, start: 30, end: 70},
            //      {yAxisIndex: 0, start: 20, end: 80}
            // ]
            // In this case, [20, 80] of y-dataZoom should be based on data
            // that have filtered by x-dataZoom using range of [30, 70],
            // but should not be based on full raw data. Thus sliding
            // x-dataZoom will change both ranges of xAxis and yAxis,
            // while sliding y-dataZoom will only change the range of yAxis.
            // So we should filter x-axis after reset x-axis immediately,
            // and then reset y-axis and filter y-axis.
            dataZoomModel.eachTargetAxis(function (dimNames, axisIndex, dataZoomModel) {
                dataZoomModel.getAxisProxy(dimNames.name, axisIndex).filterData(dataZoomModel, api);
            });
        });

        ecModel.eachComponent('dataZoom', function (dataZoomModel) {
            // Fullfill all of the range props so that user
            // is able to get them from chart.getOption().
            var axisProxy = dataZoomModel.findRepresentativeAxisProxy();
            var percentRange = axisProxy.getDataPercentWindow();
            var valueRange = axisProxy.getDataValueWindow();

            dataZoomModel.setRawRange({
                start: percentRange[0],
                end: percentRange[1],
                startValue: valueRange[0],
                endValue: valueRange[1]
            }, true);
        });
    }
});

registerAction('dataZoom', function (payload, ecModel) {

    var linkedNodesFinder = createLinkedNodesFinder(
        bind(ecModel.eachComponent, ecModel, 'dataZoom'),
        eachAxisDim$1,
        function (model, dimNames) {
            return model.get(dimNames.axisIndex);
        }
    );

    var effectedModels = [];

    ecModel.eachComponent(
        {mainType: 'dataZoom', query: payload},
        function (model, index) {
            effectedModels.push.apply(
                effectedModels, linkedNodesFinder(model).nodes
            );
        }
    );

    each$1(effectedModels, function (dataZoomModel, index) {
        dataZoomModel.setRawRange({
            start: payload.start,
            end: payload.end,
            startValue: payload.startValue,
            endValue: payload.endValue
        });
    });

});

/**
 * DataZoom component entry
 */

var each$25 = each$1;

var preprocessor$2 = function (option) {
    var visualMap = option && option.visualMap;

    if (!isArray(visualMap)) {
        visualMap = visualMap ? [visualMap] : [];
    }

    each$25(visualMap, function (opt) {
        if (!opt) {
            return;
        }

        // rename splitList to pieces
        if (has$1(opt, 'splitList') && !has$1(opt, 'pieces')) {
            opt.pieces = opt.splitList;
            delete opt.splitList;
        }

        var pieces = opt.pieces;
        if (pieces && isArray(pieces)) {
            each$25(pieces, function (piece) {
                if (isObject$1(piece)) {
                    if (has$1(piece, 'start') && !has$1(piece, 'min')) {
                        piece.min = piece.start;
                    }
                    if (has$1(piece, 'end') && !has$1(piece, 'max')) {
                        piece.max = piece.end;
                    }
                }
            });
        }
    });
};

function has$1(obj, name) {
    return obj && obj.hasOwnProperty && obj.hasOwnProperty(name);
}

ComponentModel.registerSubTypeDefaulter('visualMap', function (option) {
    // Compatible with ec2, when splitNumber === 0, continuous visualMap will be used.
    return (
            !option.categories
            && (
                !(
                    option.pieces
                        ? option.pieces.length > 0
                        : option.splitNumber > 0
                )
                || option.calculable
            )
        )
        ? 'continuous' : 'piecewise';
});

var VISUAL_PRIORITY = PRIORITY.VISUAL.COMPONENT;

registerVisual(VISUAL_PRIORITY, {
    createOnAllSeries: true,
    reset: function (seriesModel, ecModel) {
        var resetDefines = [];
        ecModel.eachComponent('visualMap', function (visualMapModel) {
            if (!visualMapModel.isTargetSeries(seriesModel)) {
                return;
            }

            resetDefines.push(incrementalApplyVisual(
                visualMapModel.stateList,
                visualMapModel.targetVisuals,
                bind(visualMapModel.getValueState, visualMapModel),
                visualMapModel.getDataDimension(seriesModel.getData())
            ));
        });

        return resetDefines;
    }
});

// Only support color.
registerVisual(VISUAL_PRIORITY, {
    createOnAllSeries: true,
    reset: function (seriesModel, ecModel) {
        var data = seriesModel.getData();
        var visualMetaList = [];

        ecModel.eachComponent('visualMap', function (visualMapModel) {
            if (visualMapModel.isTargetSeries(seriesModel)) {
                var visualMeta = visualMapModel.getVisualMeta(
                    bind(getColorVisual, null, seriesModel, visualMapModel)
                ) || {stops: [], outerColors: []};

                var concreteDim = visualMapModel.getDataDimension(data);
                var dimInfo = data.getDimensionInfo(concreteDim);
                if (dimInfo != null) {
                    // visualMeta.dimension should be dimension index, but not concrete dimension.
                    visualMeta.dimension = dimInfo.index;
                    visualMetaList.push(visualMeta);
                }
            }
        });

        // console.log(JSON.stringify(visualMetaList.map(a => a.stops)));
        seriesModel.getData().setVisual('visualMeta', visualMetaList);
    }
});

// FIXME
// performance and export for heatmap?
// value can be Infinity or -Infinity
function getColorVisual(seriesModel, visualMapModel, value, valueState) {
    var mappings = visualMapModel.targetVisuals[valueState];
    var visualTypes = VisualMapping.prepareVisualTypes(mappings);
    var resultVisual = {
        color: seriesModel.getData().getVisual('color') // default color.
    };

    for (var i = 0, len = visualTypes.length; i < len; i++) {
        var type = visualTypes[i];
        var mapping = mappings[
            type === 'opacity' ? '__alphaForOpacity' : type
        ];
        mapping && mapping.applyVisual(value, getVisual, setVisual);
    }

    return resultVisual.color;

    function getVisual(key) {
        return resultVisual[key];
    }

    function setVisual(key, value) {
        resultVisual[key] = value;
    }
}

/**
 * @file Visual mapping.
 */

var visualDefault = {

    /**
     * @public
     */
    get: function (visualType, key, isCategory) {
        var value = clone(
            (defaultOption$3[visualType] || {})[key]
        );

        return isCategory
            ? (isArray(value) ? value[value.length - 1] : value)
            : value;
    }

};

var defaultOption$3 = {

    color: {
        active: ['#006edd', '#e0ffff'],
        inactive: ['rgba(0,0,0,0)']
    },

    colorHue: {
        active: [0, 360],
        inactive: [0, 0]
    },

    colorSaturation: {
        active: [0.3, 1],
        inactive: [0, 0]
    },

    colorLightness: {
        active: [0.9, 0.5],
        inactive: [0, 0]
    },

    colorAlpha: {
        active: [0.3, 1],
        inactive: [0, 0]
    },

    opacity: {
        active: [0.3, 1],
        inactive: [0, 0]
    },

    symbol: {
        active: ['circle', 'roundRect', 'diamond'],
        inactive: ['none']
    },

    symbolSize: {
        active: [10, 50],
        inactive: [0, 0]
    }
};

var mapVisual$2 = VisualMapping.mapVisual;
var eachVisual = VisualMapping.eachVisual;
var isArray$3 = isArray;
var each$26 = each$1;
var asc$3 = asc;
var linearMap$3 = linearMap;
var noop$2 = noop;

var VisualMapModel = extendComponentModel({

    type: 'visualMap',

    dependencies: ['series'],

    /**
     * @readOnly
     * @type {Array.<string>}
     */
    stateList: ['inRange', 'outOfRange'],

    /**
     * @readOnly
     * @type {Array.<string>}
     */
    replacableOptionKeys: [
        'inRange', 'outOfRange', 'target', 'controller', 'color'
    ],

    /**
     * [lowerBound, upperBound]
     *
     * @readOnly
     * @type {Array.<number>}
     */
    dataBound: [-Infinity, Infinity],

    /**
     * @readOnly
     * @type {string|Object}
     */
    layoutMode: {type: 'box', ignoreSize: true},

    /**
     * @protected
     */
    defaultOption: {
        show: true,

        zlevel: 0,
        z: 4,

        seriesIndex: 'all',     // 'all' or null/undefined: all series.
                                // A number or an array of number: the specified series.

                                // set min: 0, max: 200, only for campatible with ec2.
                                // In fact min max should not have default value.
        min: 0,                 // min value, must specified if pieces is not specified.
        max: 200,               // max value, must specified if pieces is not specified.

        dimension: null,
        inRange: null,          // 'color', 'colorHue', 'colorSaturation', 'colorLightness', 'colorAlpha',
                                // 'symbol', 'symbolSize'
        outOfRange: null,       // 'color', 'colorHue', 'colorSaturation',
                                // 'colorLightness', 'colorAlpha',
                                // 'symbol', 'symbolSize'

        left: 0,                // 'center' ¦ 'left' ¦ 'right' ¦ {number} (px)
        right: null,            // The same as left.
        top: null,              // 'top' ¦ 'bottom' ¦ 'center' ¦ {number} (px)
        bottom: 0,              // The same as top.

        itemWidth: null,
        itemHeight: null,
        inverse: false,
        orient: 'vertical',        // 'horizontal' ¦ 'vertical'

        backgroundColor: 'rgba(0,0,0,0)',
        borderColor: '#ccc',       // 值域边框颜色
        contentColor: '#5793f3',
        inactiveColor: '#aaa',
        borderWidth: 0,            // 值域边框线宽，单位px，默认为0（无边框）
        padding: 5,                // 值域内边距，单位px，默认各方向内边距为5，
                                    // 接受数组分别设定上右下左边距，同css
        textGap: 10,               //
        precision: 0,              // 小数精度，默认为0，无小数点
        color: null,               //颜色（deprecated，兼容ec2，顺序同pieces，不同于inRange/outOfRange）

        formatter: null,
        text: null,                // 文本，如['高', '低']，兼容ec2，text[0]对应高值，text[1]对应低值
        textStyle: {
            color: '#333'          // 值域文字颜色
        }
    },

    /**
     * @protected
     */
    init: function (option, parentModel, ecModel) {

        /**
         * @private
         * @type {Array.<number>}
         */
        this._dataExtent;

        /**
         * @readOnly
         */
        this.targetVisuals = {};

        /**
         * @readOnly
         */
        this.controllerVisuals = {};

        /**
         * @readOnly
         */
        this.textStyleModel;

        /**
         * [width, height]
         * @readOnly
         * @type {Array.<number>}
         */
        this.itemSize;

        this.mergeDefaultAndTheme(option, ecModel);
    },

    /**
     * @protected
     */
    optionUpdated: function (newOption, isInit) {
        var thisOption = this.option;

        // FIXME
        // necessary?
        // Disable realtime view update if canvas is not supported.
        if (!env$1.canvasSupported) {
            thisOption.realtime = false;
        }

        !isInit && replaceVisualOption(
            thisOption, newOption, this.replacableOptionKeys
        );

        this.textStyleModel = this.getModel('textStyle');

        this.resetItemSize();

        this.completeVisualOption();
    },

    /**
     * @protected
     */
    resetVisual: function (supplementVisualOption) {
        var stateList = this.stateList;
        supplementVisualOption = bind(supplementVisualOption, this);

        this.controllerVisuals = createVisualMappings(
            this.option.controller, stateList, supplementVisualOption
        );
        this.targetVisuals = createVisualMappings(
            this.option.target, stateList, supplementVisualOption
        );
    },

    /**
     * @protected
     * @return {Array.<number>} An array of series indices.
     */
    getTargetSeriesIndices: function () {
        var optionSeriesIndex = this.option.seriesIndex;
        var seriesIndices = [];

        if (optionSeriesIndex == null || optionSeriesIndex === 'all') {
            this.ecModel.eachSeries(function (seriesModel, index) {
                seriesIndices.push(index);
            });
        }
        else {
            seriesIndices = normalizeToArray(optionSeriesIndex);
        }

        return seriesIndices;
    },

    /**
     * @public
     */
    eachTargetSeries: function (callback, context) {
        each$1(this.getTargetSeriesIndices(), function (seriesIndex) {
            callback.call(context, this.ecModel.getSeriesByIndex(seriesIndex));
        }, this);
    },

    /**
     * @pubilc
     */
    isTargetSeries: function (seriesModel) {
        var is = false;
        this.eachTargetSeries(function (model) {
            model === seriesModel && (is = true);
        });
        return is;
    },

    /**
     * @example
     * this.formatValueText(someVal); // format single numeric value to text.
     * this.formatValueText(someVal, true); // format single category value to text.
     * this.formatValueText([min, max]); // format numeric min-max to text.
     * this.formatValueText([this.dataBound[0], max]); // using data lower bound.
     * this.formatValueText([min, this.dataBound[1]]); // using data upper bound.
     *
     * @param {number|Array.<number>} value Real value, or this.dataBound[0 or 1].
     * @param {boolean} [isCategory=false] Only available when value is number.
     * @param {Array.<string>} edgeSymbols Open-close symbol when value is interval.
     * @return {string}
     * @protected
     */
    formatValueText: function(value, isCategory, edgeSymbols) {
        var option = this.option;
        var precision = option.precision;
        var dataBound = this.dataBound;
        var formatter = option.formatter;
        var isMinMax;
        var textValue;
        edgeSymbols = edgeSymbols || ['<', '>'];

        if (isArray(value)) {
            value = value.slice();
            isMinMax = true;
        }

        textValue = isCategory
            ? value
            : (isMinMax
                ? [toFixed(value[0]), toFixed(value[1])]
                : toFixed(value)
            );

        if (isString(formatter)) {
            return formatter
                .replace('{value}', isMinMax ? textValue[0] : textValue)
                .replace('{value2}', isMinMax ? textValue[1] : textValue);
        }
        else if (isFunction$1(formatter)) {
            return isMinMax
                ? formatter(value[0], value[1])
                : formatter(value);
        }

        if (isMinMax) {
            if (value[0] === dataBound[0]) {
                return edgeSymbols[0] + ' ' + textValue[1];
            }
            else if (value[1] === dataBound[1]) {
                return edgeSymbols[1] + ' ' + textValue[0];
            }
            else {
                return textValue[0] + ' - ' + textValue[1];
            }
        }
        else { // Format single value (includes category case).
            return textValue;
        }

        function toFixed(val) {
            return val === dataBound[0]
                ? 'min'
                : val === dataBound[1]
                ? 'max'
                : (+val).toFixed(Math.min(precision, 20));
        }
    },

    /**
     * @protected
     */
    resetExtent: function () {
        var thisOption = this.option;

        // Can not calculate data extent by data here.
        // Because series and data may be modified in processing stage.
        // So we do not support the feature "auto min/max".

        var extent = asc$3([thisOption.min, thisOption.max]);

        this._dataExtent = extent;
    },

    /**
     * @public
     * @param {module:echarts/data/List} list
     * @return {string} Concrete dimention. If return null/undefined,
     *                  no dimension used.
     */
    getDataDimension: function (list) {
        var optDim = this.option.dimension;
        var listDimensions = list.dimensions;
        if (optDim == null && !listDimensions.length) {
            return;
        }

        if (optDim != null) {
            return list.getDimension(optDim);
        }

        var dimNames = list.dimensions;
        for (var i = dimNames.length - 1; i >= 0; i--) {
            var dimName = dimNames[i];
            var dimInfo = list.getDimensionInfo(dimName);
            if (!dimInfo.isCalculationCoord) {
                return dimName;
            }
        }
    },

    /**
     * @public
     * @override
     */
    getExtent: function () {
        return this._dataExtent.slice();
    },

    /**
     * @protected
     */
    completeVisualOption: function () {
        var ecModel = this.ecModel;
        var thisOption = this.option;
        var base = {inRange: thisOption.inRange, outOfRange: thisOption.outOfRange};

        var target = thisOption.target || (thisOption.target = {});
        var controller = thisOption.controller || (thisOption.controller = {});

        merge(target, base); // Do not override
        merge(controller, base); // Do not override

        var isCategory = this.isCategory();

        completeSingle.call(this, target);
        completeSingle.call(this, controller);
        completeInactive.call(this, target, 'inRange', 'outOfRange');
        // completeInactive.call(this, target, 'outOfRange', 'inRange');
        completeController.call(this, controller);

        function completeSingle(base) {
            // Compatible with ec2 dataRange.color.
            // The mapping order of dataRange.color is: [high value, ..., low value]
            // whereas inRange.color and outOfRange.color is [low value, ..., high value]
            // Notice: ec2 has no inverse.
            if (isArray$3(thisOption.color)
                // If there has been inRange: {symbol: ...}, adding color is a mistake.
                // So adding color only when no inRange defined.
                && !base.inRange
            ) {
                base.inRange = {color: thisOption.color.slice().reverse()};
            }

            // Compatible with previous logic, always give a defautl color, otherwise
            // simple config with no inRange and outOfRange will not work.
            // Originally we use visualMap.color as the default color, but setOption at
            // the second time the default color will be erased. So we change to use
            // constant DEFAULT_COLOR.
            // If user do not want the defualt color, set inRange: {color: null}.
            base.inRange = base.inRange || {color: ecModel.get('gradientColor')};

            // If using shortcut like: {inRange: 'symbol'}, complete default value.
            each$26(this.stateList, function (state) {
                var visualType = base[state];

                if (isString(visualType)) {
                    var defa = visualDefault.get(visualType, 'active', isCategory);
                    if (defa) {
                        base[state] = {};
                        base[state][visualType] = defa;
                    }
                    else {
                        // Mark as not specified.
                        delete base[state];
                    }
                }
            }, this);
        }

        function completeInactive(base, stateExist, stateAbsent) {
            var optExist = base[stateExist];
            var optAbsent = base[stateAbsent];

            if (optExist && !optAbsent) {
                optAbsent = base[stateAbsent] = {};
                each$26(optExist, function (visualData, visualType) {
                    if (!VisualMapping.isValidType(visualType)) {
                        return;
                    }

                    var defa = visualDefault.get(visualType, 'inactive', isCategory);

                    if (defa != null) {
                        optAbsent[visualType] = defa;

                        // Compatibable with ec2:
                        // Only inactive color to rgba(0,0,0,0) can not
                        // make label transparent, so use opacity also.
                        if (visualType === 'color'
                            && !optAbsent.hasOwnProperty('opacity')
                            && !optAbsent.hasOwnProperty('colorAlpha')
                        ) {
                            optAbsent.opacity = [0, 0];
                        }
                    }
                });
            }
        }

        function completeController(controller) {
            var symbolExists = (controller.inRange || {}).symbol
                || (controller.outOfRange || {}).symbol;
            var symbolSizeExists = (controller.inRange || {}).symbolSize
                || (controller.outOfRange || {}).symbolSize;
            var inactiveColor = this.get('inactiveColor');

            each$26(this.stateList, function (state) {

                var itemSize = this.itemSize;
                var visuals = controller[state];

                // Set inactive color for controller if no other color
                // attr (like colorAlpha) specified.
                if (!visuals) {
                    visuals = controller[state] = {
                        color: isCategory ? inactiveColor : [inactiveColor]
                    };
                }

                // Consistent symbol and symbolSize if not specified.
                if (visuals.symbol == null) {
                    visuals.symbol = symbolExists
                        && clone(symbolExists)
                        || (isCategory ? 'roundRect' : ['roundRect']);
                }
                if (visuals.symbolSize == null) {
                    visuals.symbolSize = symbolSizeExists
                        && clone(symbolSizeExists)
                        || (isCategory ? itemSize[0] : [itemSize[0], itemSize[0]]);
                }

                // Filter square and none.
                visuals.symbol = mapVisual$2(visuals.symbol, function (symbol) {
                    return (symbol === 'none' || symbol === 'square') ? 'roundRect' : symbol;
                });

                // Normalize symbolSize
                var symbolSize = visuals.symbolSize;

                if (symbolSize != null) {
                    var max = -Infinity;
                    // symbolSize can be object when categories defined.
                    eachVisual(symbolSize, function (value) {
                        value > max && (max = value);
                    });
                    visuals.symbolSize = mapVisual$2(symbolSize, function (value) {
                        return linearMap$3(value, [0, max], [0, itemSize[0]], true);
                    });
                }

            }, this);
        }
    },

    /**
     * @protected
     */
    resetItemSize: function () {
        this.itemSize = [
            parseFloat(this.get('itemWidth')),
            parseFloat(this.get('itemHeight'))
        ];
    },

    /**
     * @public
     */
    isCategory: function () {
        return !!this.option.categories;
    },

    /**
     * @public
     * @abstract
     */
    setSelected: noop$2,

    /**
     * @public
     * @abstract
     * @param {*|module:echarts/data/List} valueOrData
     * @param {number} dataIndex
     * @return {string} state See this.stateList
     */
    getValueState: noop$2,

    /**
     * FIXME
     * Do not publish to thirt-part-dev temporarily
     * util the interface is stable. (Should it return
     * a function but not visual meta?)
     *
     * @pubilc
     * @abstract
     * @param {Function} getColorVisual
     *        params: value, valueState
     *        return: color
     * @return {Object} visualMeta
     *        should includes {stops, outerColors}
     *        outerColor means [colorBeyondMinValue, colorBeyondMaxValue]
     */
    getVisualMeta: noop$2

});

// Constant
var DEFAULT_BAR_BOUND = [20, 140];

var ContinuousModel = VisualMapModel.extend({

    type: 'visualMap.continuous',

    /**
     * @protected
     */
    defaultOption: {
        align: 'auto',          // 'auto', 'left', 'right', 'top', 'bottom'
        calculable: false,      // This prop effect default component type determine,
                                // See echarts/component/visualMap/typeDefaulter.
        range: null,            // selected range. In default case `range` is [min, max]
                                // and can auto change along with modification of min max,
                                // util use specifid a range.
        realtime: true,         // Whether realtime update.
        itemHeight: null,       // The length of the range control edge.
        itemWidth: null,        // The length of the other side.
        hoverLink: true,        // Enable hover highlight.
        hoverLinkDataSize: null,// The size of hovered data.
        hoverLinkOnHandle: null // Whether trigger hoverLink when hover handle.
                                // If not specified, follow the value of `realtime`.
    },

    /**
     * @override
     */
    optionUpdated: function (newOption, isInit) {
        ContinuousModel.superApply(this, 'optionUpdated', arguments);

        this.resetExtent();

        this.resetVisual(function (mappingOption) {
            mappingOption.mappingMethod = 'linear';
            mappingOption.dataExtent = this.getExtent();
        });

        this._resetRange();
    },

    /**
     * @protected
     * @override
     */
    resetItemSize: function () {
        ContinuousModel.superApply(this, 'resetItemSize', arguments);

        var itemSize = this.itemSize;

        this._orient === 'horizontal' && itemSize.reverse();

        (itemSize[0] == null || isNaN(itemSize[0])) && (itemSize[0] = DEFAULT_BAR_BOUND[0]);
        (itemSize[1] == null || isNaN(itemSize[1])) && (itemSize[1] = DEFAULT_BAR_BOUND[1]);
    },

    /**
     * @private
     */
    _resetRange: function () {
        var dataExtent = this.getExtent();
        var range = this.option.range;

        if (!range || range.auto) {
            // `range` should always be array (so we dont use other
            // value like 'auto') for user-friend. (consider getOption).
            dataExtent.auto = 1;
            this.option.range = dataExtent;
        }
        else if (isArray(range)) {
            if (range[0] > range[1]) {
                range.reverse();
            }
            range[0] = Math.max(range[0], dataExtent[0]);
            range[1] = Math.min(range[1], dataExtent[1]);
        }
    },

    /**
     * @protected
     * @override
     */
    completeVisualOption: function () {
        VisualMapModel.prototype.completeVisualOption.apply(this, arguments);

        each$1(this.stateList, function (state) {
            var symbolSize = this.option.controller[state].symbolSize;
            if (symbolSize && symbolSize[0] !== symbolSize[1]) {
                symbolSize[0] = 0; // For good looking.
            }
        }, this);
    },

    /**
     * @override
     */
    setSelected: function (selected) {
        this.option.range = selected.slice();
        this._resetRange();
    },

    /**
     * @public
     */
    getSelected: function () {
        var dataExtent = this.getExtent();

        var dataInterval = asc(
            (this.get('range') || []).slice()
        );

        // Clamp
        dataInterval[0] > dataExtent[1] && (dataInterval[0] = dataExtent[1]);
        dataInterval[1] > dataExtent[1] && (dataInterval[1] = dataExtent[1]);
        dataInterval[0] < dataExtent[0] && (dataInterval[0] = dataExtent[0]);
        dataInterval[1] < dataExtent[0] && (dataInterval[1] = dataExtent[0]);

        return dataInterval;
    },

    /**
     * @override
     */
    getValueState: function (value) {
        var range = this.option.range;
        var dataExtent = this.getExtent();

        // When range[0] === dataExtent[0], any value larger than dataExtent[0] maps to 'inRange'.
        // range[1] is processed likewise.
        return (
            (range[0] <= dataExtent[0] || range[0] <= value)
            && (range[1] >= dataExtent[1] || value <= range[1])
        ) ? 'inRange' : 'outOfRange';
    },

    /**
     * @params {Array.<number>} range target value: range[0] <= value && value <= range[1]
     * @return {Array.<Object>} [{seriesId, dataIndices: <Array.<number>>}, ...]
     */
    findTargetDataIndices: function (range) {
        var result = [];

        this.eachTargetSeries(function (seriesModel) {
            var dataIndices = [];
            var data = seriesModel.getData();

            data.each(this.getDataDimension(data), function (value, dataIndex) {
                range[0] <= value && value <= range[1] && dataIndices.push(dataIndex);
            }, this);

            result.push({seriesId: seriesModel.id, dataIndex: dataIndices});
        }, this);

        return result;
    },

    /**
     * @implement
     */
    getVisualMeta: function (getColorVisual) {
        var oVals = getColorStopValues(this, 'outOfRange', this.getExtent());
        var iVals = getColorStopValues(this, 'inRange', this.option.range.slice());
        var stops = [];

        function setStop(value, valueState) {
            stops.push({
                value: value,
                color: getColorVisual(value, valueState)
            });
        }

        // Format to: outOfRange -- inRange -- outOfRange.
        var iIdx = 0;
        var oIdx = 0;
        var iLen = iVals.length;
        var oLen = oVals.length;

        for (; oIdx < oLen && (!iVals.length || oVals[oIdx] <= iVals[0]); oIdx++) {
            // If oVal[oIdx] === iVals[iIdx], oVal[oIdx] should be ignored.
            if (oVals[oIdx] < iVals[iIdx]) {
                setStop(oVals[oIdx], 'outOfRange');
            }
        }
        for (var first = 1; iIdx < iLen; iIdx++, first = 0) {
            // If range is full, value beyond min, max will be clamped.
            // make a singularity
            first && stops.length && setStop(iVals[iIdx], 'outOfRange');
            setStop(iVals[iIdx], 'inRange');
        }
        for (var first = 1; oIdx < oLen; oIdx++) {
            if (!iVals.length || iVals[iVals.length - 1] < oVals[oIdx]) {
                // make a singularity
                if (first) {
                    stops.length && setStop(stops[stops.length - 1].value, 'outOfRange');
                    first = 0;
                }
                setStop(oVals[oIdx], 'outOfRange');
            }
        }

        var stopsLen = stops.length;

        return {
            stops: stops,
            outerColors: [
                stopsLen ? stops[0].color : 'transparent',
                stopsLen ? stops[stopsLen - 1].color : 'transparent'
            ]
        };
    }

});

function getColorStopValues(visualMapModel, valueState, dataExtent) {
    if (dataExtent[0] === dataExtent[1]) {
        return dataExtent.slice();
    }

    // When using colorHue mapping, it is not linear color any more.
    // Moreover, canvas gradient seems not to be accurate linear.
    // FIXME
    // Should be arbitrary value 100? or based on pixel size?
    var count = 200;
    var step = (dataExtent[1] - dataExtent[0]) / count;

    var value = dataExtent[0];
    var stopValues = [];
    for (var i = 0; i <= count && value < dataExtent[1]; i++) {
        stopValues.push(value);
        value += step;
    }
    stopValues.push(dataExtent[1]);

    return stopValues;
}

var VisualMapView = extendComponentView({

    type: 'visualMap',

    /**
     * @readOnly
     * @type {Object}
     */
    autoPositionValues: {left: 1, right: 1, top: 1, bottom: 1},

    init: function (ecModel, api) {
        /**
         * @readOnly
         * @type {module:echarts/model/Global}
         */
        this.ecModel = ecModel;

        /**
         * @readOnly
         * @type {module:echarts/ExtensionAPI}
         */
        this.api = api;

        /**
         * @readOnly
         * @type {module:echarts/component/visualMap/visualMapModel}
         */
        this.visualMapModel;
    },

    /**
     * @protected
     */
    render: function (visualMapModel, ecModel, api, payload) {
        this.visualMapModel = visualMapModel;

        if (visualMapModel.get('show') === false) {
            this.group.removeAll();
            return;
        }

        this.doRender.apply(this, arguments);
    },

    /**
     * @protected
     */
    renderBackground: function (group) {
        var visualMapModel = this.visualMapModel;
        var padding = normalizeCssArray$1(visualMapModel.get('padding') || 0);
        var rect = group.getBoundingRect();

        group.add(new Rect({
            z2: -1, // Lay background rect on the lowest layer.
            silent: true,
            shape: {
                x: rect.x - padding[3],
                y: rect.y - padding[0],
                width: rect.width + padding[3] + padding[1],
                height: rect.height + padding[0] + padding[2]
            },
            style: {
                fill: visualMapModel.get('backgroundColor'),
                stroke: visualMapModel.get('borderColor'),
                lineWidth: visualMapModel.get('borderWidth')
            }
        }));
    },

    /**
     * @protected
     * @param {number} targetValue can be Infinity or -Infinity
     * @param {string=} visualCluster Only can be 'color' 'opacity' 'symbol' 'symbolSize'
     * @param {Object} [opts]
     * @param {string=} [opts.forceState] Specify state, instead of using getValueState method.
     * @param {string=} [opts.convertOpacityToAlpha=false] For color gradient in controller widget.
     * @return {*} Visual value.
     */
    getControllerVisual: function (targetValue, visualCluster, opts) {
        opts = opts || {};

        var forceState = opts.forceState;
        var visualMapModel = this.visualMapModel;
        var visualObj = {};

        // Default values.
        if (visualCluster === 'symbol') {
            visualObj.symbol = visualMapModel.get('itemSymbol');
        }
        if (visualCluster === 'color') {
            var defaultColor = visualMapModel.get('contentColor');
            visualObj.color = defaultColor;
        }

        function getter(key) {
            return visualObj[key];
        }

        function setter(key, value) {
            visualObj[key] = value;
        }

        var mappings = visualMapModel.controllerVisuals[
            forceState || visualMapModel.getValueState(targetValue)
        ];
        var visualTypes = VisualMapping.prepareVisualTypes(mappings);

        each$1(visualTypes, function (type) {
            var visualMapping = mappings[type];
            if (opts.convertOpacityToAlpha && type === 'opacity') {
                type = 'colorAlpha';
                visualMapping = mappings.__alphaForOpacity;
            }
            if (VisualMapping.dependsOn(type, visualCluster)) {
                visualMapping && visualMapping.applyVisual(
                    targetValue, getter, setter
                );
            }
        });

        return visualObj[visualCluster];
    },

    /**
     * @protected
     */
    positionGroup: function (group) {
        var model = this.visualMapModel;
        var api = this.api;

        positionElement(
            group,
            model.getBoxLayoutParams(),
            {width: api.getWidth(), height: api.getHeight()}
        );
    },

    /**
     * @protected
     * @abstract
     */
    doRender: noop

});

/**
 * @param {module:echarts/component/visualMap/VisualMapModel} visualMapModel\
 * @param {module:echarts/ExtensionAPI} api
 * @param {Array.<number>} itemSize always [short, long]
 * @return {string} 'left' or 'right' or 'top' or 'bottom'
 */
function getItemAlign(visualMapModel, api, itemSize) {
    var modelOption = visualMapModel.option;
    var itemAlign = modelOption.align;

    if (itemAlign != null && itemAlign !== 'auto') {
        return itemAlign;
    }

    // Auto decision align.
    var ecSize = {width: api.getWidth(), height: api.getHeight()};
    var realIndex = modelOption.orient === 'horizontal' ? 1 : 0;

    var paramsSet = [
        ['left', 'right', 'width'],
        ['top', 'bottom', 'height']
    ];
    var reals = paramsSet[realIndex];
    var fakeValue = [0, null, 10];

    var layoutInput = {};
    for (var i = 0; i < 3; i++) {
        layoutInput[paramsSet[1 - realIndex][i]] = fakeValue[i];
        layoutInput[reals[i]] = i === 2 ? itemSize[0] : modelOption[reals[i]];
    }

    var rParam = [['x', 'width', 3], ['y', 'height', 0]][realIndex];
    var rect = getLayoutRect(layoutInput, ecSize, modelOption.padding);

    return reals[
        (rect.margin[rParam[2]] || 0) + rect[rParam[0]] + rect[rParam[1]] * 0.5
            < ecSize[rParam[1]] * 0.5 ? 0 : 1
    ];
}

/**
 * Prepare dataIndex for outside usage, where dataIndex means rawIndex, and
 * dataIndexInside means filtered index.
 */
function convertDataIndex(batch) {
    each$1(batch || [], function (batchItem) {
        if (batch.dataIndex != null) {
            batch.dataIndexInside = batch.dataIndex;
            batch.dataIndex = null;
        }
    });
    return batch;
}

var linearMap$4 = linearMap;
var each$27 = each$1;
var mathMin$7 = Math.min;
var mathMax$7 = Math.max;

// Arbitrary value
var HOVER_LINK_SIZE = 12;
var HOVER_LINK_OUT = 6;

// Notice:
// Any "interval" should be by the order of [low, high].
// "handle0" (handleIndex === 0) maps to
// low data value: this._dataInterval[0] and has low coord.
// "handle1" (handleIndex === 1) maps to
// high data value: this._dataInterval[1] and has high coord.
// The logic of transform is implemented in this._createBarGroup.

var ContinuousView = VisualMapView.extend({

    type: 'visualMap.continuous',

    /**
     * @override
     */
    init: function () {

        ContinuousView.superApply(this, 'init', arguments);

        /**
         * @private
         */
        this._shapes = {};

        /**
         * @private
         */
        this._dataInterval = [];

        /**
         * @private
         */
        this._handleEnds = [];

        /**
         * @private
         */
        this._orient;

        /**
         * @private
         */
        this._useHandle;

        /**
         * @private
         */
        this._hoverLinkDataIndices = [];

        /**
         * @private
         */
        this._dragging;

        /**
         * @private
         */
        this._hovering;
    },

    /**
     * @protected
     * @override
     */
    doRender: function (visualMapModel, ecModel, api, payload) {
        if (!payload || payload.type !== 'selectDataRange' || payload.from !== this.uid) {
            this._buildView();
        }
    },

    /**
     * @private
     */
    _buildView: function () {
        this.group.removeAll();

        var visualMapModel = this.visualMapModel;
        var thisGroup = this.group;

        this._orient = visualMapModel.get('orient');
        this._useHandle = visualMapModel.get('calculable');

        this._resetInterval();

        this._renderBar(thisGroup);

        var dataRangeText = visualMapModel.get('text');
        this._renderEndsText(thisGroup, dataRangeText, 0);
        this._renderEndsText(thisGroup, dataRangeText, 1);

        // Do this for background size calculation.
        this._updateView(true);

        // After updating view, inner shapes is built completely,
        // and then background can be rendered.
        this.renderBackground(thisGroup);

        // Real update view
        this._updateView();

        this._enableHoverLinkToSeries();
        this._enableHoverLinkFromSeries();

        this.positionGroup(thisGroup);
    },

    /**
     * @private
     */
    _renderEndsText: function (group, dataRangeText, endsIndex) {
        if (!dataRangeText) {
            return;
        }

        // Compatible with ec2, text[0] map to high value, text[1] map low value.
        var text = dataRangeText[1 - endsIndex];
        text = text != null ? text + '' : '';

        var visualMapModel = this.visualMapModel;
        var textGap = visualMapModel.get('textGap');
        var itemSize = visualMapModel.itemSize;

        var barGroup = this._shapes.barGroup;
        var position = this._applyTransform(
            [
                itemSize[0] / 2,
                endsIndex === 0 ? -textGap : itemSize[1] + textGap
            ],
            barGroup
        );
        var align = this._applyTransform(
            endsIndex === 0 ? 'bottom' : 'top',
            barGroup
        );
        var orient = this._orient;
        var textStyleModel = this.visualMapModel.textStyleModel;

        this.group.add(new Text({
            style: {
                x: position[0],
                y: position[1],
                textVerticalAlign: orient === 'horizontal' ? 'middle' : align,
                textAlign: orient === 'horizontal' ? align : 'center',
                text: text,
                textFont: textStyleModel.getFont(),
                textFill: textStyleModel.getTextColor()
            }
        }));
    },

    /**
     * @private
     */
    _renderBar: function (targetGroup) {
        var visualMapModel = this.visualMapModel;
        var shapes = this._shapes;
        var itemSize = visualMapModel.itemSize;
        var orient = this._orient;
        var useHandle = this._useHandle;
        var itemAlign = getItemAlign(visualMapModel, this.api, itemSize);
        var barGroup = shapes.barGroup = this._createBarGroup(itemAlign);

        // Bar
        barGroup.add(shapes.outOfRange = createPolygon());
        barGroup.add(shapes.inRange = createPolygon(
            null,
            useHandle ? getCursor$1(this._orient) : null,
            bind(this._dragHandle, this, 'all', false),
            bind(this._dragHandle, this, 'all', true)
        ));

        var textRect = visualMapModel.textStyleModel.getTextRect('国');
        var textSize = mathMax$7(textRect.width, textRect.height);

        // Handle
        if (useHandle) {
            shapes.handleThumbs = [];
            shapes.handleLabels = [];
            shapes.handleLabelPoints = [];

            this._createHandle(barGroup, 0, itemSize, textSize, orient, itemAlign);
            this._createHandle(barGroup, 1, itemSize, textSize, orient, itemAlign);
        }

        this._createIndicator(barGroup, itemSize, textSize, orient);

        targetGroup.add(barGroup);
    },

    /**
     * @private
     */
    _createHandle: function (barGroup, handleIndex, itemSize, textSize, orient) {
        var onDrift = bind(this._dragHandle, this, handleIndex, false);
        var onDragEnd = bind(this._dragHandle, this, handleIndex, true);
        var handleThumb = createPolygon(
            createHandlePoints(handleIndex, textSize),
            getCursor$1(this._orient),
            onDrift,
            onDragEnd
        );
        handleThumb.position[0] = itemSize[0];
        barGroup.add(handleThumb);

        // Text is always horizontal layout but should not be effected by
        // transform (orient/inverse). So label is built separately but not
        // use zrender/graphic/helper/RectText, and is located based on view
        // group (according to handleLabelPoint) but not barGroup.
        var textStyleModel = this.visualMapModel.textStyleModel;
        var handleLabel = new Text({
            draggable: true,
            drift: onDrift,
            onmousemove: function (e) {
                // Fot mobile devicem, prevent screen slider on the button.
                stop(e.event);
            },
            ondragend: onDragEnd,
            style: {
                x: 0, y: 0, text: '',
                textFont: textStyleModel.getFont(),
                textFill: textStyleModel.getTextColor()
            }
        });
        this.group.add(handleLabel);

        var handleLabelPoint = [
            orient === 'horizontal'
                ? textSize / 2
                : textSize * 1.5,
            orient === 'horizontal'
                ? (handleIndex === 0 ? -(textSize * 1.5) : (textSize * 1.5))
                : (handleIndex === 0 ? -textSize / 2 : textSize / 2)
        ];

        var shapes = this._shapes;
        shapes.handleThumbs[handleIndex] = handleThumb;
        shapes.handleLabelPoints[handleIndex] = handleLabelPoint;
        shapes.handleLabels[handleIndex] = handleLabel;
    },

    /**
     * @private
     */
    _createIndicator: function (barGroup, itemSize, textSize, orient) {
        var indicator = createPolygon([[0, 0]], 'move');
        indicator.position[0] = itemSize[0];
        indicator.attr({invisible: true, silent: true});
        barGroup.add(indicator);

        var textStyleModel = this.visualMapModel.textStyleModel;
        var indicatorLabel = new Text({
            silent: true,
            invisible: true,
            style: {
                x: 0, y: 0, text: '',
                textFont: textStyleModel.getFont(),
                textFill: textStyleModel.getTextColor()
            }
        });
        this.group.add(indicatorLabel);

        var indicatorLabelPoint = [
            orient === 'horizontal' ? textSize / 2 : HOVER_LINK_OUT + 3,
            0
        ];

        var shapes = this._shapes;
        shapes.indicator = indicator;
        shapes.indicatorLabel = indicatorLabel;
        shapes.indicatorLabelPoint = indicatorLabelPoint;
    },

    /**
     * @private
     */
    _dragHandle: function (handleIndex, isEnd, dx, dy) {
        if (!this._useHandle) {
            return;
        }

        this._dragging = !isEnd;

        if (!isEnd) {
            // Transform dx, dy to bar coordination.
            var vertex = this._applyTransform([dx, dy], this._shapes.barGroup, true);
            this._updateInterval(handleIndex, vertex[1]);

            // Considering realtime, update view should be executed
            // before dispatch action.
            this._updateView();
        }

        // dragEnd do not dispatch action when realtime.
        if (isEnd === !this.visualMapModel.get('realtime')) { // jshint ignore:line
            this.api.dispatchAction({
                type: 'selectDataRange',
                from: this.uid,
                visualMapId: this.visualMapModel.id,
                selected: this._dataInterval.slice()
            });
        }

        if (isEnd) {
            !this._hovering && this._clearHoverLinkToSeries();
        }
        else if (useHoverLinkOnHandle(this.visualMapModel)) {
            this._doHoverLinkToSeries(this._handleEnds[handleIndex], false);
        }
    },

    /**
     * @private
     */
    _resetInterval: function () {
        var visualMapModel = this.visualMapModel;

        var dataInterval = this._dataInterval = visualMapModel.getSelected();
        var dataExtent = visualMapModel.getExtent();
        var sizeExtent = [0, visualMapModel.itemSize[1]];

        this._handleEnds = [
            linearMap$4(dataInterval[0], dataExtent, sizeExtent, true),
            linearMap$4(dataInterval[1], dataExtent, sizeExtent, true)
        ];
    },

    /**
     * @private
     * @param {(number|string)} handleIndex 0 or 1 or 'all'
     * @param {number} dx
     * @param {number} dy
     */
    _updateInterval: function (handleIndex, delta) {
        delta = delta || 0;
        var visualMapModel = this.visualMapModel;
        var handleEnds = this._handleEnds;
        var sizeExtent = [0, visualMapModel.itemSize[1]];

        sliderMove(
            delta,
            handleEnds,
            sizeExtent,
            handleIndex,
            // cross is forbiden
            0
        );

        var dataExtent = visualMapModel.getExtent();
        // Update data interval.
        this._dataInterval = [
            linearMap$4(handleEnds[0], sizeExtent, dataExtent, true),
            linearMap$4(handleEnds[1], sizeExtent, dataExtent, true)
        ];
    },

    /**
     * @private
     */
    _updateView: function (forSketch) {
        var visualMapModel = this.visualMapModel;
        var dataExtent = visualMapModel.getExtent();
        var shapes = this._shapes;

        var outOfRangeHandleEnds = [0, visualMapModel.itemSize[1]];
        var inRangeHandleEnds = forSketch ? outOfRangeHandleEnds : this._handleEnds;

        var visualInRange = this._createBarVisual(
            this._dataInterval, dataExtent, inRangeHandleEnds, 'inRange'
        );
        var visualOutOfRange = this._createBarVisual(
            dataExtent, dataExtent, outOfRangeHandleEnds, 'outOfRange'
        );

        shapes.inRange
            .setStyle({
                fill: visualInRange.barColor,
                opacity: visualInRange.opacity
            })
            .setShape('points', visualInRange.barPoints);
        shapes.outOfRange
            .setStyle({
                fill: visualOutOfRange.barColor,
                opacity: visualOutOfRange.opacity
            })
            .setShape('points', visualOutOfRange.barPoints);

        this._updateHandle(inRangeHandleEnds, visualInRange);
    },

    /**
     * @private
     */
    _createBarVisual: function (dataInterval, dataExtent, handleEnds, forceState) {
        var opts = {
            forceState: forceState,
            convertOpacityToAlpha: true
        };
        var colorStops = this._makeColorGradient(dataInterval, opts);

        var symbolSizes = [
            this.getControllerVisual(dataInterval[0], 'symbolSize', opts),
            this.getControllerVisual(dataInterval[1], 'symbolSize', opts)
        ];
        var barPoints = this._createBarPoints(handleEnds, symbolSizes);

        return {
            barColor: new LinearGradient(0, 0, 0, 1, colorStops),
            barPoints: barPoints,
            handlesColor: [
                colorStops[0].color,
                colorStops[colorStops.length - 1].color
            ]
        };
    },

    /**
     * @private
     */
    _makeColorGradient: function (dataInterval, opts) {
        // Considering colorHue, which is not linear, so we have to sample
        // to calculate gradient color stops, but not only caculate head
        // and tail.
        var sampleNumber = 100; // Arbitrary value.
        var colorStops = [];
        var step = (dataInterval[1] - dataInterval[0]) / sampleNumber;

        colorStops.push({
            color: this.getControllerVisual(dataInterval[0], 'color', opts),
            offset: 0
        });

        for (var i = 1; i < sampleNumber; i++) {
            var currValue = dataInterval[0] + step * i;
            if (currValue > dataInterval[1]) {
                break;
            }
            colorStops.push({
                color: this.getControllerVisual(currValue, 'color', opts),
                offset: i / sampleNumber
            });
        }

        colorStops.push({
            color: this.getControllerVisual(dataInterval[1], 'color', opts),
            offset: 1
        });

        return colorStops;
    },

    /**
     * @private
     */
    _createBarPoints: function (handleEnds, symbolSizes) {
        var itemSize = this.visualMapModel.itemSize;

        return [
            [itemSize[0] - symbolSizes[0], handleEnds[0]],
            [itemSize[0], handleEnds[0]],
            [itemSize[0], handleEnds[1]],
            [itemSize[0] - symbolSizes[1], handleEnds[1]]
        ];
    },

    /**
     * @private
     */
    _createBarGroup: function (itemAlign) {
        var orient = this._orient;
        var inverse = this.visualMapModel.get('inverse');

        return new Group(
            (orient === 'horizontal' && !inverse)
            ? {scale: itemAlign === 'bottom' ? [1, 1] : [-1, 1], rotation: Math.PI / 2}
            : (orient === 'horizontal' && inverse)
            ? {scale: itemAlign === 'bottom' ? [-1, 1] : [1, 1], rotation: -Math.PI / 2}
            : (orient === 'vertical' && !inverse)
            ? {scale: itemAlign === 'left' ? [1, -1] : [-1, -1]}
            : {scale: itemAlign === 'left' ? [1, 1] : [-1, 1]}
        );
    },

    /**
     * @private
     */
    _updateHandle: function (handleEnds, visualInRange) {
        if (!this._useHandle) {
            return;
        }

        var shapes = this._shapes;
        var visualMapModel = this.visualMapModel;
        var handleThumbs = shapes.handleThumbs;
        var handleLabels = shapes.handleLabels;

        each$27([0, 1], function (handleIndex) {
            var handleThumb = handleThumbs[handleIndex];
            handleThumb.setStyle('fill', visualInRange.handlesColor[handleIndex]);
            handleThumb.position[1] = handleEnds[handleIndex];

            // Update handle label position.
            var textPoint = applyTransform$1(
                shapes.handleLabelPoints[handleIndex],
                getTransform(handleThumb, this.group)
            );
            handleLabels[handleIndex].setStyle({
                x: textPoint[0],
                y: textPoint[1],
                text: visualMapModel.formatValueText(this._dataInterval[handleIndex]),
                textVerticalAlign: 'middle',
                textAlign: this._applyTransform(
                    this._orient === 'horizontal'
                        ? (handleIndex === 0 ? 'bottom' : 'top')
                        : 'left',
                    shapes.barGroup
                )
            });
        }, this);
    },

    /**
     * @private
     * @param {number} cursorValue
     * @param {number} textValue
     * @param {string} [rangeSymbol]
     * @param {number} [halfHoverLinkSize]
     */
    _showIndicator: function (cursorValue, textValue, rangeSymbol, halfHoverLinkSize) {
        var visualMapModel = this.visualMapModel;
        var dataExtent = visualMapModel.getExtent();
        var itemSize = visualMapModel.itemSize;
        var sizeExtent = [0, itemSize[1]];
        var pos = linearMap$4(cursorValue, dataExtent, sizeExtent, true);

        var shapes = this._shapes;
        var indicator = shapes.indicator;
        if (!indicator) {
            return;
        }

        indicator.position[1] = pos;
        indicator.attr('invisible', false);
        indicator.setShape('points', createIndicatorPoints(
            !!rangeSymbol, halfHoverLinkSize, pos, itemSize[1]
        ));

        var opts = {convertOpacityToAlpha: true};
        var color = this.getControllerVisual(cursorValue, 'color', opts);
        indicator.setStyle('fill', color);

        // Update handle label position.
        var textPoint = applyTransform$1(
            shapes.indicatorLabelPoint,
            getTransform(indicator, this.group)
        );

        var indicatorLabel = shapes.indicatorLabel;
        indicatorLabel.attr('invisible', false);
        var align = this._applyTransform('left', shapes.barGroup);
        var orient = this._orient;
        indicatorLabel.setStyle({
            text: (rangeSymbol ? rangeSymbol : '') + visualMapModel.formatValueText(textValue),
            textVerticalAlign: orient === 'horizontal' ? align : 'middle',
            textAlign: orient === 'horizontal' ? 'center' : align,
            x: textPoint[0],
            y: textPoint[1]
        });
    },

    /**
     * @private
     */
    _enableHoverLinkToSeries: function () {
        var self = this;
        this._shapes.barGroup

            .on('mousemove', function (e) {
                self._hovering = true;

                if (!self._dragging) {
                    var itemSize = self.visualMapModel.itemSize;
                    var pos = self._applyTransform(
                        [e.offsetX, e.offsetY], self._shapes.barGroup, true, true
                    );
                    // For hover link show when hover handle, which might be
                    // below or upper than sizeExtent.
                    pos[1] = mathMin$7(mathMax$7(0, pos[1]), itemSize[1]);
                    self._doHoverLinkToSeries(
                        pos[1],
                        0 <= pos[0] && pos[0] <= itemSize[0]
                    );
                }
            })

            .on('mouseout', function () {
                // When mouse is out of handle, hoverLink still need
                // to be displayed when realtime is set as false.
                self._hovering = false;
                !self._dragging && self._clearHoverLinkToSeries();
            });
    },

    /**
     * @private
     */
    _enableHoverLinkFromSeries: function () {
        var zr = this.api.getZr();

        if (this.visualMapModel.option.hoverLink) {
            zr.on('mouseover', this._hoverLinkFromSeriesMouseOver, this);
            zr.on('mouseout', this._hideIndicator, this);
        }
        else {
            this._clearHoverLinkFromSeries();
        }
    },

    /**
     * @private
     */
    _doHoverLinkToSeries: function (cursorPos, hoverOnBar) {
        var visualMapModel = this.visualMapModel;
        var itemSize = visualMapModel.itemSize;

        if (!visualMapModel.option.hoverLink) {
            return;
        }

        var sizeExtent = [0, itemSize[1]];
        var dataExtent = visualMapModel.getExtent();

        // For hover link show when hover handle, which might be below or upper than sizeExtent.
        cursorPos = mathMin$7(mathMax$7(sizeExtent[0], cursorPos), sizeExtent[1]);

        var halfHoverLinkSize = getHalfHoverLinkSize(visualMapModel, dataExtent, sizeExtent);
        var hoverRange = [cursorPos - halfHoverLinkSize, cursorPos + halfHoverLinkSize];
        var cursorValue = linearMap$4(cursorPos, sizeExtent, dataExtent, true);
        var valueRange = [
            linearMap$4(hoverRange[0], sizeExtent, dataExtent, true),
            linearMap$4(hoverRange[1], sizeExtent, dataExtent, true)
        ];
        // Consider data range is out of visualMap range, see test/visualMap-continuous.html,
        // where china and india has very large population.
        hoverRange[0] < sizeExtent[0] && (valueRange[0] = -Infinity);
        hoverRange[1] > sizeExtent[1] && (valueRange[1] = Infinity);

        // Do not show indicator when mouse is over handle,
        // otherwise labels overlap, especially when dragging.
        if (hoverOnBar) {
            if (valueRange[0] === -Infinity) {
                this._showIndicator(cursorValue, valueRange[1], '< ', halfHoverLinkSize);
            }
            else if (valueRange[1] === Infinity) {
                this._showIndicator(cursorValue, valueRange[0], '> ', halfHoverLinkSize);
            }
            else {
                this._showIndicator(cursorValue, cursorValue, '≈ ', halfHoverLinkSize);
            }
        }

        // When realtime is set as false, handles, which are in barGroup,
        // also trigger hoverLink, which help user to realize where they
        // focus on when dragging. (see test/heatmap-large.html)
        // When realtime is set as true, highlight will not show when hover
        // handle, because the label on handle, which displays a exact value
        // but not range, might mislead users.
        var oldBatch = this._hoverLinkDataIndices;
        var newBatch = [];
        if (hoverOnBar || useHoverLinkOnHandle(visualMapModel)) {
            newBatch = this._hoverLinkDataIndices = visualMapModel.findTargetDataIndices(valueRange);
        }

        var resultBatches = compressBatches(oldBatch, newBatch);

        this._dispatchHighDown('downplay', convertDataIndex(resultBatches[0]));
        this._dispatchHighDown('highlight', convertDataIndex(resultBatches[1]));
    },

    /**
     * @private
     */
    _hoverLinkFromSeriesMouseOver: function (e) {
        var el = e.target;
        var visualMapModel = this.visualMapModel;

        if (!el || el.dataIndex == null) {
            return;
        }

        var dataModel = this.ecModel.getSeriesByIndex(el.seriesIndex);

        if (!visualMapModel.isTargetSeries(dataModel)) {
            return;
        }

        var data = dataModel.getData(el.dataType);
        var value = data.get(visualMapModel.getDataDimension(data), el.dataIndex, true);

        if (!isNaN(value)) {
            this._showIndicator(value, value);
        }
    },

    /**
     * @private
     */
    _hideIndicator: function () {
        var shapes = this._shapes;
        shapes.indicator && shapes.indicator.attr('invisible', true);
        shapes.indicatorLabel && shapes.indicatorLabel.attr('invisible', true);
    },

    /**
     * @private
     */
    _clearHoverLinkToSeries: function () {
        this._hideIndicator();

        var indices = this._hoverLinkDataIndices;
        this._dispatchHighDown('downplay', convertDataIndex(indices));

        indices.length = 0;
    },

    /**
     * @private
     */
    _clearHoverLinkFromSeries: function () {
        this._hideIndicator();

        var zr = this.api.getZr();
        zr.off('mouseover', this._hoverLinkFromSeriesMouseOver);
        zr.off('mouseout', this._hideIndicator);
    },

    /**
     * @private
     */
    _applyTransform: function (vertex, element, inverse, global) {
        var transform = getTransform(element, global ? null : this.group);

        return graphic[
            isArray(vertex) ? 'applyTransform' : 'transformDirection'
        ](vertex, transform, inverse);
    },

    /**
     * @private
     */
    _dispatchHighDown: function (type, batch) {
        batch && batch.length && this.api.dispatchAction({
            type: type,
            batch: batch
        });
    },

    /**
     * @override
     */
    dispose: function () {
        this._clearHoverLinkFromSeries();
        this._clearHoverLinkToSeries();
    },

    /**
     * @override
     */
    remove: function () {
        this._clearHoverLinkFromSeries();
        this._clearHoverLinkToSeries();
    }

});

function createPolygon(points, cursor, onDrift, onDragEnd) {
    return new Polygon({
        shape: {points: points},
        draggable: !!onDrift,
        cursor: cursor,
        drift: onDrift,
        onmousemove: function (e) {
            // Fot mobile devicem, prevent screen slider on the button.
            stop(e.event);
        },
        ondragend: onDragEnd
    });
}

function createHandlePoints(handleIndex, textSize) {
    return handleIndex === 0
        ? [[0, 0], [textSize, 0], [textSize, -textSize]]
        : [[0, 0], [textSize, 0], [textSize, textSize]];
}

function createIndicatorPoints(isRange, halfHoverLinkSize, pos, extentMax) {
    return isRange
        ? [ // indicate range
            [0, -mathMin$7(halfHoverLinkSize, mathMax$7(pos, 0))],
            [HOVER_LINK_OUT, 0],
            [0, mathMin$7(halfHoverLinkSize, mathMax$7(extentMax - pos, 0))]
        ]
        : [ // indicate single value
            [0, 0], [5, -5], [5, 5]
        ];
}

function getHalfHoverLinkSize(visualMapModel, dataExtent, sizeExtent) {
    var halfHoverLinkSize = HOVER_LINK_SIZE / 2;
    var hoverLinkDataSize = visualMapModel.get('hoverLinkDataSize');
    if (hoverLinkDataSize) {
        halfHoverLinkSize = linearMap$4(hoverLinkDataSize, dataExtent, sizeExtent, true) / 2;
    }
    return halfHoverLinkSize;
}

function useHoverLinkOnHandle(visualMapModel) {
    var hoverLinkOnHandle = visualMapModel.get('hoverLinkOnHandle');
    return !!(hoverLinkOnHandle == null ? visualMapModel.get('realtime') : hoverLinkOnHandle);
}

function getCursor$1(orient) {
    return orient === 'vertical' ? 'ns-resize' : 'ew-resize';
}

var actionInfo$2 = {
    type: 'selectDataRange',
    event: 'dataRangeSelected',
    // FIXME use updateView appears wrong
    update: 'update'
};

registerAction(actionInfo$2, function (payload, ecModel) {

    ecModel.eachComponent({mainType: 'visualMap', query: payload}, function (model) {
        model.setSelected(payload.selected);
    });

});

/**
 * DataZoom component entry
 */

registerPreprocessor(preprocessor$2);

var PiecewiseModel = VisualMapModel.extend({

    type: 'visualMap.piecewise',

    /**
     * Order Rule:
     *
     * option.categories / option.pieces / option.text / option.selected:
     *     If !option.inverse,
     *     Order when vertical: ['top', ..., 'bottom'].
     *     Order when horizontal: ['left', ..., 'right'].
     *     If option.inverse, the meaning of
     *     the order should be reversed.
     *
     * this._pieceList:
     *     The order is always [low, ..., high].
     *
     * Mapping from location to low-high:
     *     If !option.inverse
     *     When vertical, top is high.
     *     When horizontal, right is high.
     *     If option.inverse, reverse.
     */

    /**
     * @protected
     */
    defaultOption: {
        selected: null,             // Object. If not specified, means selected.
                                    // When pieces and splitNumber: {'0': true, '5': true}
                                    // When categories: {'cate1': false, 'cate3': true}
                                    // When selected === false, means all unselected.

        minOpen: false,             // Whether include values that smaller than `min`.
        maxOpen: false,             // Whether include values that bigger than `max`.

        align: 'auto',              // 'auto', 'left', 'right'
        itemWidth: 20,              // When put the controller vertically, it is the length of
                                    // horizontal side of each item. Otherwise, vertical side.
        itemHeight: 14,             // When put the controller vertically, it is the length of
                                    // vertical side of each item. Otherwise, horizontal side.
        itemSymbol: 'roundRect',
        pieceList: null,            // Each item is Object, with some of those attrs:
                                    // {min, max, lt, gt, lte, gte, value,
                                    // color, colorSaturation, colorAlpha, opacity,
                                    // symbol, symbolSize}, which customize the range or visual
                                    // coding of the certain piece. Besides, see "Order Rule".
        categories: null,           // category names, like: ['some1', 'some2', 'some3'].
                                    // Attr min/max are ignored when categories set. See "Order Rule"
        splitNumber: 5,             // If set to 5, auto split five pieces equally.
                                    // If set to 0 and component type not set, component type will be
                                    // determined as "continuous". (It is less reasonable but for ec2
                                    // compatibility, see echarts/component/visualMap/typeDefaulter)
        selectedMode: 'multiple',   // Can be 'multiple' or 'single'.
        itemGap: 10,                // The gap between two items, in px.
        hoverLink: true,            // Enable hover highlight.

        showLabel: null             // By default, when text is used, label will hide (the logic
                                    // is remained for compatibility reason)
    },

    /**
     * @override
     */
    optionUpdated: function (newOption, isInit) {
        PiecewiseModel.superApply(this, 'optionUpdated', arguments);

        /**
         * The order is always [low, ..., high].
         * [{text: string, interval: Array.<number>}, ...]
         * @private
         * @type {Array.<Object>}
         */
        this._pieceList = [];

        this.resetExtent();

        /**
         * 'pieces', 'categories', 'splitNumber'
         * @type {string}
         */
        var mode = this._mode = this._determineMode();

        resetMethods[this._mode].call(this);

        this._resetSelected(newOption, isInit);

        var categories = this.option.categories;

        this.resetVisual(function (mappingOption, state) {
            if (mode === 'categories') {
                mappingOption.mappingMethod = 'category';
                mappingOption.categories = clone(categories);
            }
            else {
                mappingOption.dataExtent = this.getExtent();
                mappingOption.mappingMethod = 'piecewise';
                mappingOption.pieceList = map(this._pieceList, function (piece) {
                    var piece = clone(piece);
                    if (state !== 'inRange') {
                        // FIXME
                        // outOfRange do not support special visual in pieces.
                        piece.visual = null;
                    }
                    return piece;
                });
            }
        });
    },

    /**
     * @protected
     * @override
     */
    completeVisualOption: function () {
        // Consider this case:
        // visualMap: {
        //      pieces: [{symbol: 'circle', lt: 0}, {symbol: 'rect', gte: 0}]
        // }
        // where no inRange/outOfRange set but only pieces. So we should make
        // default inRange/outOfRange for this case, otherwise visuals that only
        // appear in `pieces` will not be taken into account in visual encoding.

        var option = this.option;
        var visualTypesInPieces = {};
        var visualTypes = VisualMapping.listVisualTypes();
        var isCategory = this.isCategory();

        each$1(option.pieces, function (piece) {
            each$1(visualTypes, function (visualType) {
                if (piece.hasOwnProperty(visualType)) {
                    visualTypesInPieces[visualType] = 1;
                }
            });
        });

        each$1(visualTypesInPieces, function (v, visualType) {
            var exists = 0;
            each$1(this.stateList, function (state) {
                exists |= has(option, state, visualType)
                    || has(option.target, state, visualType);
            }, this);

            !exists && each$1(this.stateList, function (state) {
                (option[state] || (option[state] = {}))[visualType] = visualDefault.get(
                    visualType, state === 'inRange' ? 'active' : 'inactive', isCategory
                );
            });
        }, this);

        function has(obj, state, visualType) {
            return obj && obj[state] && (
                isObject$1(obj[state])
                    ? obj[state].hasOwnProperty(visualType)
                    : obj[state] === visualType // e.g., inRange: 'symbol'
            );
        }

        VisualMapModel.prototype.completeVisualOption.apply(this, arguments);
    },

    _resetSelected: function (newOption, isInit) {
        var thisOption = this.option;
        var pieceList = this._pieceList;

        // Selected do not merge but all override.
        var selected = (isInit ? thisOption : newOption).selected || {};
        thisOption.selected = selected;

        // Consider 'not specified' means true.
        each$1(pieceList, function (piece, index) {
            var key = this.getSelectedMapKey(piece);
            if (!selected.hasOwnProperty(key)) {
                selected[key] = true;
            }
        }, this);

        if (thisOption.selectedMode === 'single') {
            // Ensure there is only one selected.
            var hasSel = false;

            each$1(pieceList, function (piece, index) {
                var key = this.getSelectedMapKey(piece);
                if (selected[key]) {
                    hasSel
                        ? (selected[key] = false)
                        : (hasSel = true);
                }
            }, this);
        }
        // thisOption.selectedMode === 'multiple', default: all selected.
    },

    /**
     * @public
     */
    getSelectedMapKey: function (piece) {
        return this._mode === 'categories'
            ? piece.value + '' : piece.index + '';
    },

    /**
     * @public
     */
    getPieceList: function () {
        return this._pieceList;
    },

    /**
     * @private
     * @return {string}
     */
    _determineMode: function () {
        var option = this.option;

        return option.pieces && option.pieces.length > 0
            ? 'pieces'
            : this.option.categories
            ? 'categories'
            : 'splitNumber';
    },

    /**
     * @public
     * @override
     */
    setSelected: function (selected) {
        this.option.selected = clone(selected);
    },

    /**
     * @public
     * @override
     */
    getValueState: function (value) {
        var index = VisualMapping.findPieceIndex(value, this._pieceList);

        return index != null
            ? (this.option.selected[this.getSelectedMapKey(this._pieceList[index])]
                ? 'inRange' : 'outOfRange'
            )
            : 'outOfRange';
    },

    /**
     * @public
     * @params {number} pieceIndex piece index in visualMapModel.getPieceList()
     * @return {Array.<Object>} [{seriesId, dataIndices: <Array.<number>>}, ...]
     */
    findTargetDataIndices: function (pieceIndex) {
        var result = [];

        this.eachTargetSeries(function (seriesModel) {
            var dataIndices = [];
            var data = seriesModel.getData();

            data.each(this.getDataDimension(data), function (value, dataIndex) {
                // Should always base on model pieceList, because it is order sensitive.
                var pIdx = VisualMapping.findPieceIndex(value, this._pieceList);
                pIdx === pieceIndex && dataIndices.push(dataIndex);
            }, this);

            result.push({seriesId: seriesModel.id, dataIndex: dataIndices});
        }, this);

        return result;
    },

    /**
     * @private
     * @param {Object} piece piece.value or piece.interval is required.
     * @return {number} Can be Infinity or -Infinity
     */
    getRepresentValue: function (piece) {
        var representValue;
        if (this.isCategory()) {
            representValue = piece.value;
        }
        else {
            if (piece.value != null) {
                representValue = piece.value;
            }
            else {
                var pieceInterval = piece.interval || [];
                representValue = (pieceInterval[0] === -Infinity && pieceInterval[1] === Infinity)
                    ? 0
                    : (pieceInterval[0] + pieceInterval[1]) / 2;
            }
        }
        return representValue;
    },

    getVisualMeta: function (getColorVisual) {
        // Do not support category. (category axis is ordinal, numerical)
        if (this.isCategory()) {
            return;
        }

        var stops = [];
        var outerColors = [];
        var visualMapModel = this;

        function setStop(interval, valueState) {
            var representValue = visualMapModel.getRepresentValue({interval: interval});
            if (!valueState) {
                valueState = visualMapModel.getValueState(representValue);
            }
            var color = getColorVisual(representValue, valueState);
            if (interval[0] === -Infinity) {
                outerColors[0] = color;
            }
            else if (interval[1] === Infinity) {
                outerColors[1] = color;
            }
            else {
                stops.push(
                    {value: interval[0], color: color},
                    {value: interval[1], color: color}
                );
            }
        }

        // Suplement
        var pieceList = this._pieceList.slice();
        if (!pieceList.length) {
            pieceList.push({interval: [-Infinity, Infinity]});
        }
        else {
            var edge = pieceList[0].interval[0];
            edge !== -Infinity && pieceList.unshift({interval: [-Infinity, edge]});
            edge = pieceList[pieceList.length - 1].interval[1];
            edge !== Infinity && pieceList.push({interval: [edge, Infinity]});
        }

        var curr = -Infinity;
        each$1(pieceList, function (piece) {
            var interval = piece.interval;
            if (interval) {
                // Fulfill gap.
                interval[0] > curr && setStop([curr, interval[0]], 'outOfRange');
                setStop(interval.slice());
                curr = interval[1];
            }
        }, this);

        return {stops: stops, outerColors: outerColors};
    }

});

/**
 * Key is this._mode
 * @type {Object}
 * @this {module:echarts/component/viusalMap/PiecewiseMode}
 */
var resetMethods = {

    splitNumber: function () {
        var thisOption = this.option;
        var pieceList = this._pieceList;
        var precision = Math.min(thisOption.precision, 20);
        var dataExtent = this.getExtent();
        var splitNumber = thisOption.splitNumber;
        splitNumber = Math.max(parseInt(splitNumber, 10), 1);
        thisOption.splitNumber = splitNumber;

        var splitStep = (dataExtent[1] - dataExtent[0]) / splitNumber;
        // Precision auto-adaption
        while (+splitStep.toFixed(precision) !== splitStep && precision < 5) {
            precision++;
        }
        thisOption.precision = precision;
        splitStep = +splitStep.toFixed(precision);

        var index = 0;

        if (thisOption.minOpen) {
            pieceList.push({
                index: index++,
                interval: [-Infinity, dataExtent[0]],
                close: [0, 0]
            });
        }

        for (
            var curr = dataExtent[0], len = index + splitNumber;
            index < len;
            curr += splitStep
        ) {
            var max = index === splitNumber - 1 ? dataExtent[1] : (curr + splitStep);

            pieceList.push({
                index: index++,
                interval: [curr, max],
                close: [1, 1]
            });
        }

        if (thisOption.maxOpen) {
            pieceList.push({
                index: index++,
                interval: [dataExtent[1], Infinity],
                close: [0, 0]
            });
        }

        reformIntervals(pieceList);

        each$1(pieceList, function (piece) {
            piece.text = this.formatValueText(piece.interval);
        }, this);
    },

    categories: function () {
        var thisOption = this.option;
        each$1(thisOption.categories, function (cate) {
            // FIXME category模式也使用pieceList，但在visualMapping中不是使用pieceList。
            // 是否改一致。
            this._pieceList.push({
                text: this.formatValueText(cate, true),
                value: cate
            });
        }, this);

        // See "Order Rule".
        normalizeReverse(thisOption, this._pieceList);
    },

    pieces: function () {
        var thisOption = this.option;
        var pieceList = this._pieceList;

        each$1(thisOption.pieces, function (pieceListItem, index) {

            if (!isObject$1(pieceListItem)) {
                pieceListItem = {value: pieceListItem};
            }

            var item = {text: '', index: index};

            if (pieceListItem.label != null) {
                item.text = pieceListItem.label;
            }

            if (pieceListItem.hasOwnProperty('value')) {
                var value = item.value = pieceListItem.value;
                item.interval = [value, value];
                item.close = [1, 1];
            }
            else {
                // `min` `max` is legacy option.
                // `lt` `gt` `lte` `gte` is recommanded.
                var interval = item.interval = [];
                var close = item.close = [0, 0];

                var closeList = [1, 0, 1];
                var infinityList = [-Infinity, Infinity];

                var useMinMax = [];
                for (var lg = 0; lg < 2; lg++) {
                    var names = [['gte', 'gt', 'min'], ['lte', 'lt', 'max']][lg];
                    for (var i = 0; i < 3 && interval[lg] == null; i++) {
                        interval[lg] = pieceListItem[names[i]];
                        close[lg] = closeList[i];
                        useMinMax[lg] = i === 2;
                    }
                    interval[lg] == null && (interval[lg] = infinityList[lg]);
                }
                useMinMax[0] && interval[1] === Infinity && (close[0] = 0);
                useMinMax[1] && interval[0] === -Infinity && (close[1] = 0);

                if (__DEV__) {
                    if (interval[0] > interval[1]) {
                        console.warn(
                            'Piece ' + index + 'is illegal: ' + interval
                            + ' lower bound should not greater then uppper bound.'
                        );
                    }
                }

                if (interval[0] === interval[1] && close[0] && close[1]) {
                    // Consider: [{min: 5, max: 5, visual: {...}}, {min: 0, max: 5}],
                    // we use value to lift the priority when min === max
                    item.value = interval[0];
                }
            }

            item.visual = VisualMapping.retrieveVisuals(pieceListItem);

            pieceList.push(item);

        }, this);

        // See "Order Rule".
        normalizeReverse(thisOption, pieceList);
        // Only pieces
        reformIntervals(pieceList);

        each$1(pieceList, function (piece) {
            var close = piece.close;
            var edgeSymbols = [['<', '≤'][close[1]], ['>', '≥'][close[0]]];
            piece.text = piece.text || this.formatValueText(
                piece.value != null ? piece.value : piece.interval,
                false,
                edgeSymbols
            );
        }, this);
    }
};

function normalizeReverse(thisOption, pieceList) {
    var inverse = thisOption.inverse;
    if (thisOption.orient === 'vertical' ? !inverse : inverse) {
            pieceList.reverse();
    }
}

var PiecewiseVisualMapView = VisualMapView.extend({

    type: 'visualMap.piecewise',

    /**
     * @protected
     * @override
     */
    doRender: function () {
        var thisGroup = this.group;

        thisGroup.removeAll();

        var visualMapModel = this.visualMapModel;
        var textGap = visualMapModel.get('textGap');
        var textStyleModel = visualMapModel.textStyleModel;
        var textFont = textStyleModel.getFont();
        var textFill = textStyleModel.getTextColor();
        var itemAlign = this._getItemAlign();
        var itemSize = visualMapModel.itemSize;
        var viewData = this._getViewData();
        var endsText = viewData.endsText;
        var showLabel = retrieve(visualMapModel.get('showLabel', true), !endsText);

        endsText && this._renderEndsText(
            thisGroup, endsText[0], itemSize, showLabel, itemAlign
        );

        each$1(viewData.viewPieceList, renderItem, this);

        endsText && this._renderEndsText(
            thisGroup, endsText[1], itemSize, showLabel, itemAlign
        );

        box(
            visualMapModel.get('orient'), thisGroup, visualMapModel.get('itemGap')
        );

        this.renderBackground(thisGroup);

        this.positionGroup(thisGroup);

        function renderItem(item) {
            var piece = item.piece;

            var itemGroup = new Group();
            itemGroup.onclick = bind(this._onItemClick, this, piece);

            this._enableHoverLink(itemGroup, item.indexInModelPieceList);

            var representValue = visualMapModel.getRepresentValue(piece);

            this._createItemSymbol(
                itemGroup, representValue, [0, 0, itemSize[0], itemSize[1]]
            );

            if (showLabel) {
                var visualState = this.visualMapModel.getValueState(representValue);

                itemGroup.add(new Text({
                    style: {
                        x: itemAlign === 'right' ? -textGap : itemSize[0] + textGap,
                        y: itemSize[1] / 2,
                        text: piece.text,
                        textVerticalAlign: 'middle',
                        textAlign: itemAlign,
                        textFont: textFont,
                        textFill: textFill,
                        opacity: visualState === 'outOfRange' ? 0.5 : 1
                    }
                }));
            }

            thisGroup.add(itemGroup);
        }
    },

    /**
     * @private
     */
    _enableHoverLink: function (itemGroup, pieceIndex) {
        itemGroup
            .on('mouseover', bind(onHoverLink, this, 'highlight'))
            .on('mouseout', bind(onHoverLink, this, 'downplay'));

        function onHoverLink(method) {
            var visualMapModel = this.visualMapModel;

            visualMapModel.option.hoverLink && this.api.dispatchAction({
                type: method,
                batch: convertDataIndex(
                    visualMapModel.findTargetDataIndices(pieceIndex)
                )
            });
        }
    },

    /**
     * @private
     */
    _getItemAlign: function () {
        var visualMapModel = this.visualMapModel;
        var modelOption = visualMapModel.option;

        if (modelOption.orient === 'vertical') {
            return getItemAlign(
                visualMapModel, this.api, visualMapModel.itemSize
            );
        }
        else { // horizontal, most case left unless specifying right.
            var align = modelOption.align;
            if (!align || align === 'auto') {
                align = 'left';
            }
            return align;
        }
    },

    /**
     * @private
     */
    _renderEndsText: function (group, text, itemSize, showLabel, itemAlign) {
        if (!text) {
            return;
        }

        var itemGroup = new Group();
        var textStyleModel = this.visualMapModel.textStyleModel;

        itemGroup.add(new Text({
            style: {
                x: showLabel ? (itemAlign === 'right' ? itemSize[0] : 0) : itemSize[0] / 2,
                y: itemSize[1] / 2,
                textVerticalAlign: 'middle',
                textAlign: showLabel ? itemAlign : 'center',
                text: text,
                textFont: textStyleModel.getFont(),
                textFill: textStyleModel.getTextColor()
            }
        }));

        group.add(itemGroup);
    },

    /**
     * @private
     * @return {Object} {peiceList, endsText} The order is the same as screen pixel order.
     */
    _getViewData: function () {
        var visualMapModel = this.visualMapModel;

        var viewPieceList = map(visualMapModel.getPieceList(), function (piece, index) {
            return {piece: piece, indexInModelPieceList: index};
        });
        var endsText = visualMapModel.get('text');

        // Consider orient and inverse.
        var orient = visualMapModel.get('orient');
        var inverse = visualMapModel.get('inverse');

        // Order of model pieceList is always [low, ..., high]
        if (orient === 'horizontal' ? inverse : !inverse) {
            viewPieceList.reverse();
        }
        // Origin order of endsText is [high, low]
        else if (endsText) {
            endsText = endsText.slice().reverse();
        }

        return {viewPieceList: viewPieceList, endsText: endsText};
    },

    /**
     * @private
     */
    _createItemSymbol: function (group, representValue, shapeParam) {
        group.add(createSymbol(
            this.getControllerVisual(representValue, 'symbol'),
            shapeParam[0], shapeParam[1], shapeParam[2], shapeParam[3],
            this.getControllerVisual(representValue, 'color')
        ));
    },

    /**
     * @private
     */
    _onItemClick: function (piece) {
        var visualMapModel = this.visualMapModel;
        var option = visualMapModel.option;
        var selected = clone(option.selected);
        var newKey = visualMapModel.getSelectedMapKey(piece);

        if (option.selectedMode === 'single') {
            selected[newKey] = true;
            each$1(selected, function (o, key) {
                selected[key] = key === newKey;
            });
        }
        else {
            selected[newKey] = !selected[newKey];
        }

        this.api.dispatchAction({
            type: 'selectDataRange',
            from: this.uid,
            visualMapId: this.visualMapModel.id,
            selected: selected
        });
    }
});

/**
 * DataZoom component entry
 */

registerPreprocessor(preprocessor$2);

/**
 * visualMap component entry
 */

var addCommas$1 = addCommas;
var encodeHTML$1 = encodeHTML;

function fillLabel(opt) {
    defaultEmphasis(opt, 'label', ['show']);
}
var MarkerModel = extendComponentModel({

    type: 'marker',

    dependencies: ['series', 'grid', 'polar', 'geo'],

    /**
     * @overrite
     */
    init: function (option, parentModel, ecModel, extraOpt) {

        if (__DEV__) {
            if (this.type === 'marker') {
                throw new Error('Marker component is abstract component. Use markLine, markPoint, markArea instead.');
            }
        }
        this.mergeDefaultAndTheme(option, ecModel);
        this.mergeOption(option, ecModel, extraOpt.createdBySelf, true);
    },

    /**
     * @return {boolean}
     */
    isAnimationEnabled: function () {
        if (env$1.node) {
            return false;
        }

        var hostSeries = this.__hostSeries;
        return this.getShallow('animation') && hostSeries && hostSeries.isAnimationEnabled();
    },

    mergeOption: function (newOpt, ecModel, createdBySelf, isInit) {
        var MarkerModel = this.constructor;
        var modelPropName = this.mainType + 'Model';
        if (!createdBySelf) {
            ecModel.eachSeries(function (seriesModel) {

                var markerOpt = seriesModel.get(this.mainType);

                var markerModel = seriesModel[modelPropName];
                if (!markerOpt || !markerOpt.data) {
                    seriesModel[modelPropName] = null;
                    return;
                }
                if (!markerModel) {
                    if (isInit) {
                        // Default label emphasis `position` and `show`
                        fillLabel(markerOpt);
                    }
                    each$1(markerOpt.data, function (item) {
                        // FIXME Overwrite fillLabel method ?
                        if (item instanceof Array) {
                            fillLabel(item[0]);
                            fillLabel(item[1]);
                        }
                        else {
                            fillLabel(item);
                        }
                    });

                    markerModel = new MarkerModel(
                        markerOpt, this, ecModel
                    );

                    extend(markerModel, {
                        mainType: this.mainType,
                        // Use the same series index and name
                        seriesIndex: seriesModel.seriesIndex,
                        name: seriesModel.name,
                        createdBySelf: true
                    });

                    markerModel.__hostSeries = seriesModel;
                }
                else {
                    markerModel.mergeOption(markerOpt, ecModel, true);
                }
                seriesModel[modelPropName] = markerModel;
            }, this);
        }
    },

    formatTooltip: function (dataIndex) {
        var data = this.getData();
        var value = this.getRawValue(dataIndex);
        var formattedValue = isArray(value)
            ? map(value, addCommas$1).join(', ') : addCommas$1(value);
        var name = data.getName(dataIndex);
        var html = encodeHTML$1(this.name);
        if (value != null || name) {
            html += '<br />';
        }
        if (name) {
            html += encodeHTML$1(name);
            if (value != null) {
                html += ' : ';
            }
        }
        if (value != null) {
            html += encodeHTML$1(formattedValue);
        }
        return html;
    },

    getData: function () {
        return this._data;
    },

    setData: function (data) {
        this._data = data;
    }
});

mixin(MarkerModel, dataFormatMixin);

MarkerModel.extend({

    type: 'markPoint',

    defaultOption: {
        zlevel: 0,
        z: 5,
        symbol: 'pin',
        symbolSize: 50,
        //symbolRotate: 0,
        //symbolOffset: [0, 0]
        tooltip: {
            trigger: 'item'
        },
        label: {
            show: true,
            position: 'inside'
        },
        itemStyle: {
            borderWidth: 2
        },
        emphasis: {
            label: {
                show: true
            }
        }
    }
});

var indexOf$2 = indexOf;

function hasXOrY(item) {
    return !(isNaN(parseFloat(item.x)) && isNaN(parseFloat(item.y)));
}

function hasXAndY(item) {
    return !isNaN(parseFloat(item.x)) && !isNaN(parseFloat(item.y));
}

// Make it simple, do not visit all stacked value to count precision.
// function getPrecision(data, valueAxisDim, dataIndex) {
//     var precision = -1;
//     var stackedDim = data.mapDimension(valueAxisDim);
//     do {
//         precision = Math.max(
//             numberUtil.getPrecision(data.get(stackedDim, dataIndex)),
//             precision
//         );
//         var stackedOnSeries = data.getCalculationInfo('stackedOnSeries');
//         if (stackedOnSeries) {
//             var byValue = data.get(data.getCalculationInfo('stackedByDimension'), dataIndex);
//             data = stackedOnSeries.getData();
//             dataIndex = data.indexOf(data.getCalculationInfo('stackedByDimension'), byValue);
//             stackedDim = data.getCalculationInfo('stackedDimension');
//         }
//         else {
//             data = null;
//         }
//     } while (data);

//     return precision;
// }

function markerTypeCalculatorWithExtent(
    mlType, data, otherDataDim, targetDataDim, otherCoordIndex, targetCoordIndex
) {
    var coordArr = [];

    var stacked = isDimensionStacked(data, targetDataDim, otherDataDim);
    var calcDataDim = stacked
        ? data.getCalculationInfo('stackResultDimension')
        : targetDataDim;

    var value = numCalculate(data, calcDataDim, mlType);

    var dataIndex = data.indicesOfNearest(calcDataDim, value)[0];
    coordArr[otherCoordIndex] = data.get(otherDataDim, dataIndex);
    coordArr[targetCoordIndex] = data.get(targetDataDim, dataIndex);

    // Make it simple, do not visit all stacked value to count precision.
    var precision = getPrecision(data.get(targetDataDim, dataIndex));
    precision = Math.min(precision, 20);
    if (precision >= 0) {
        coordArr[targetCoordIndex] = +coordArr[targetCoordIndex].toFixed(precision);
    }

    return coordArr;
}

var curry$7 = curry;
// TODO Specified percent
var markerTypeCalculator = {
    /**
     * @method
     * @param {module:echarts/data/List} data
     * @param {string} baseAxisDim
     * @param {string} valueAxisDim
     */
    min: curry$7(markerTypeCalculatorWithExtent, 'min'),
    /**
     * @method
     * @param {module:echarts/data/List} data
     * @param {string} baseAxisDim
     * @param {string} valueAxisDim
     */
    max: curry$7(markerTypeCalculatorWithExtent, 'max'),

    /**
     * @method
     * @param {module:echarts/data/List} data
     * @param {string} baseAxisDim
     * @param {string} valueAxisDim
     */
    average: curry$7(markerTypeCalculatorWithExtent, 'average')
};

/**
 * Transform markPoint data item to format used in List by do the following
 * 1. Calculate statistic like `max`, `min`, `average`
 * 2. Convert `item.xAxis`, `item.yAxis` to `item.coord` array
 * @param  {module:echarts/model/Series} seriesModel
 * @param  {module:echarts/coord/*} [coordSys]
 * @param  {Object} item
 * @return {Object}
 */
function dataTransform(seriesModel, item) {
    var data = seriesModel.getData();
    var coordSys = seriesModel.coordinateSystem;

    // 1. If not specify the position with pixel directly
    // 2. If `coord` is not a data array. Which uses `xAxis`,
    // `yAxis` to specify the coord on each dimension

    // parseFloat first because item.x and item.y can be percent string like '20%'
    if (item && !hasXAndY(item) && !isArray(item.coord) && coordSys) {
        var dims = coordSys.dimensions;
        var axisInfo = getAxisInfo$1(item, data, coordSys, seriesModel);

        // Clone the option
        // Transform the properties xAxis, yAxis, radiusAxis, angleAxis, geoCoord to value
        item = clone(item);

        if (item.type
            && markerTypeCalculator[item.type]
            && axisInfo.baseAxis && axisInfo.valueAxis
        ) {
            var otherCoordIndex = indexOf$2(dims, axisInfo.baseAxis.dim);
            var targetCoordIndex = indexOf$2(dims, axisInfo.valueAxis.dim);

            item.coord = markerTypeCalculator[item.type](
                data, axisInfo.baseDataDim, axisInfo.valueDataDim,
                otherCoordIndex, targetCoordIndex
            );
            // Force to use the value of calculated value.
            item.value = item.coord[targetCoordIndex];
        }
        else {
            // FIXME Only has one of xAxis and yAxis.
            var coord = [
                item.xAxis != null ? item.xAxis : item.radiusAxis,
                item.yAxis != null ? item.yAxis : item.angleAxis
            ];
            // Each coord support max, min, average
            for (var i = 0; i < 2; i++) {
                if (markerTypeCalculator[coord[i]]) {
                    coord[i] = numCalculate(data, data.mapDimension(dims[i]), coord[i]);
                }
            }
            item.coord = coord;
        }
    }
    return item;
}

function getAxisInfo$1(item, data, coordSys, seriesModel) {
    var ret = {};

    if (item.valueIndex != null || item.valueDim != null) {
        ret.valueDataDim = item.valueIndex != null
            ? data.getDimension(item.valueIndex) : item.valueDim;
        ret.valueAxis = coordSys.getAxis(dataDimToCoordDim(seriesModel, ret.valueDataDim));
        ret.baseAxis = coordSys.getOtherAxis(ret.valueAxis);
        ret.baseDataDim = data.mapDimension(ret.baseAxis.dim);
    }
    else {
        ret.baseAxis = seriesModel.getBaseAxis();
        ret.valueAxis = coordSys.getOtherAxis(ret.baseAxis);
        ret.baseDataDim = data.mapDimension(ret.baseAxis.dim);
        ret.valueDataDim = data.mapDimension(ret.valueAxis.dim);
    }

    return ret;
}

function dataDimToCoordDim(seriesModel, dataDim) {
    var data = seriesModel.getData();
    var dimensions = data.dimensions;
    dataDim = data.getDimension(dataDim);
    for (var i = 0; i < dimensions.length; i++) {
        var dimItem = data.getDimensionInfo(dimensions[i]);
        if (dimItem.name === dataDim) {
            return dimItem.coordDim;
        }
    }
}

/**
 * Filter data which is out of coordinateSystem range
 * [dataFilter description]
 * @param  {module:echarts/coord/*} [coordSys]
 * @param  {Object} item
 * @return {boolean}
 */
function dataFilter$1(coordSys, item) {
    // Alwalys return true if there is no coordSys
    return (coordSys && coordSys.containData && item.coord && !hasXOrY(item))
        ? coordSys.containData(item.coord) : true;
}

function dimValueGetter(item, dimName, dataIndex, dimIndex) {
    // x, y, radius, angle
    if (dimIndex < 2) {
        return item.coord && item.coord[dimIndex];
    }
    return item.value;
}

function numCalculate(data, valueDataDim, type) {
    if (type === 'average') {
        var sum = 0;
        var count = 0;
        data.each(valueDataDim, function (val, idx) {
            if (!isNaN(val)) {
                sum += val;
                count++;
            }
        });
        return sum / count;
    }
    else {
        return data.getDataExtent(valueDataDim, true)[type === 'max' ? 1 : 0];
    }
}

var MarkerView = extendComponentView({

    type: 'marker',

    init: function () {
        /**
         * Markline grouped by series
         * @private
         * @type {module:zrender/core/util.HashMap}
         */
        this.markerGroupMap = createHashMap();
    },

    render: function (markerModel, ecModel, api) {
        var markerGroupMap = this.markerGroupMap;
        markerGroupMap.each(function (item) {
            item.__keep = false;
        });

        var markerModelKey = this.type + 'Model';
        ecModel.eachSeries(function (seriesModel) {
            var markerModel = seriesModel[markerModelKey];
            markerModel && this.renderSeries(seriesModel, markerModel, ecModel, api);
        }, this);

        markerGroupMap.each(function (item) {
            !item.__keep && this.group.remove(item.group);
        }, this);
    },

    renderSeries: function () {}
});

function updateMarkerLayout(mpData, seriesModel, api) {
    var coordSys = seriesModel.coordinateSystem;
    mpData.each(function (idx) {
        var itemModel = mpData.getItemModel(idx);
        var point;
        var xPx = parsePercent$1(itemModel.get('x'), api.getWidth());
        var yPx = parsePercent$1(itemModel.get('y'), api.getHeight());
        if (!isNaN(xPx) && !isNaN(yPx)) {
            point = [xPx, yPx];
        }
        // Chart like bar may have there own marker positioning logic
        else if (seriesModel.getMarkerPosition) {
            // Use the getMarkerPoisition
            point = seriesModel.getMarkerPosition(
                mpData.getValues(mpData.dimensions, idx)
            );
        }
        else if (coordSys) {
            var x = mpData.get(coordSys.dimensions[0], idx);
            var y = mpData.get(coordSys.dimensions[1], idx);
            point = coordSys.dataToPoint([x, y]);

        }

        // Use x, y if has any
        if (!isNaN(xPx)) {
            point[0] = xPx;
        }
        if (!isNaN(yPx)) {
            point[1] = yPx;
        }

        mpData.setItemLayout(idx, point);
    });
}

MarkerView.extend({

    type: 'markPoint',

    // updateLayout: function (markPointModel, ecModel, api) {
    //     ecModel.eachSeries(function (seriesModel) {
    //         var mpModel = seriesModel.markPointModel;
    //         if (mpModel) {
    //             updateMarkerLayout(mpModel.getData(), seriesModel, api);
    //             this.markerGroupMap.get(seriesModel.id).updateLayout(mpModel);
    //         }
    //     }, this);
    // },

    updateTransform: function (markPointModel, ecModel, api) {
        ecModel.eachSeries(function (seriesModel) {
            var mpModel = seriesModel.markPointModel;
            if (mpModel) {
                updateMarkerLayout(mpModel.getData(), seriesModel, api);
                this.markerGroupMap.get(seriesModel.id).updateLayout(mpModel);
            }
        }, this);
    },

    renderSeries: function (seriesModel, mpModel, ecModel, api) {
        var coordSys = seriesModel.coordinateSystem;
        var seriesId = seriesModel.id;
        var seriesData = seriesModel.getData();

        var symbolDrawMap = this.markerGroupMap;
        var symbolDraw = symbolDrawMap.get(seriesId)
            || symbolDrawMap.set(seriesId, new SymbolDraw());

        var mpData = createList$1(coordSys, seriesModel, mpModel);

        // FIXME
        mpModel.setData(mpData);

        updateMarkerLayout(mpModel.getData(), seriesModel, api);

        mpData.each(function (idx) {
            var itemModel = mpData.getItemModel(idx);
            var symbolSize = itemModel.getShallow('symbolSize');
            if (typeof symbolSize === 'function') {
                // FIXME 这里不兼容 ECharts 2.x，2.x 貌似参数是整个数据？
                symbolSize = symbolSize(
                    mpModel.getRawValue(idx), mpModel.getDataParams(idx)
                );
            }
            mpData.setItemVisual(idx, {
                symbolSize: symbolSize,
                color: itemModel.get('itemStyle.color')
                    || seriesData.getVisual('color'),
                symbol: itemModel.getShallow('symbol')
            });
        });

        // TODO Text are wrong
        symbolDraw.updateData(mpData);
        this.group.add(symbolDraw.group);

        // Set host model for tooltip
        // FIXME
        mpData.eachItemGraphicEl(function (el) {
            el.traverse(function (child) {
                child.dataModel = mpModel;
            });
        });

        symbolDraw.__keep = true;

        symbolDraw.group.silent = mpModel.get('silent') || seriesModel.get('silent');
    }
});

/**
 * @inner
 * @param {module:echarts/coord/*} [coordSys]
 * @param {module:echarts/model/Series} seriesModel
 * @param {module:echarts/model/Model} mpModel
 */
function createList$1(coordSys, seriesModel, mpModel) {
    var coordDimsInfos;
    if (coordSys) {
        coordDimsInfos = map(coordSys && coordSys.dimensions, function (coordDim) {
            var info = seriesModel.getData().getDimensionInfo(
                seriesModel.getData().mapDimension(coordDim)
            ) || {};
            // In map series data don't have lng and lat dimension. Fallback to same with coordSys
            return defaults({name: coordDim}, info);
        });
    }
    else {
        coordDimsInfos =[{
            name: 'value',
            type: 'float'
        }];
    }

    var mpData = new List(coordDimsInfos, mpModel);
    var dataOpt = map(mpModel.get('data'), curry(
            dataTransform, seriesModel
        ));
    if (coordSys) {
        dataOpt = filter(
            dataOpt, curry(dataFilter$1, coordSys)
        );
    }

    mpData.initData(dataOpt, null,
        coordSys ? dimValueGetter : function (item) {
            return item.value;
        }
    );

    return mpData;
}

// HINT Markpoint can't be used too much
registerPreprocessor(function (opt) {
    // Make sure markPoint component is enabled
    opt.markPoint = opt.markPoint || {};
});

MarkerModel.extend({

    type: 'markLine',

    defaultOption: {
        zlevel: 0,
        z: 5,

        symbol: ['circle', 'arrow'],
        symbolSize: [8, 16],

        //symbolRotate: 0,

        precision: 2,
        tooltip: {
            trigger: 'item'
        },
        label: {
            show: true,
            position: 'end'
        },
        lineStyle: {
            type: 'dashed'
        },
        emphasis: {
            label: {
                show: true
            },
            lineStyle: {
                width: 3
            }
        },
        animationEasing: 'linear'
    }
});

var markLineTransform = function (seriesModel, coordSys, mlModel, item) {
    var data = seriesModel.getData();
    // Special type markLine like 'min', 'max', 'average'
    var mlType = item.type;

    if (!isArray(item)
        && (
            mlType === 'min' || mlType === 'max' || mlType === 'average'
            // In case
            // data: [{
            //   yAxis: 10
            // }]
            || (item.xAxis != null || item.yAxis != null)
        )
    ) {
        var valueAxis;
        var valueDataDim;
        var value;

        if (item.yAxis != null || item.xAxis != null) {
            valueDataDim = item.yAxis != null ? 'y' : 'x';
            valueAxis = coordSys.getAxis(valueDataDim);

            value = retrieve(item.yAxis, item.xAxis);
        }
        else {
            var axisInfo = getAxisInfo$1(item, data, coordSys, seriesModel);
            valueDataDim = axisInfo.valueDataDim;
            valueAxis = axisInfo.valueAxis;
            value = numCalculate(data, valueDataDim, mlType);
        }
        var valueIndex = valueDataDim === 'x' ? 0 : 1;
        var baseIndex = 1 - valueIndex;

        var mlFrom = clone(item);
        var mlTo = {};

        mlFrom.type = null;

        mlFrom.coord = [];
        mlTo.coord = [];
        mlFrom.coord[baseIndex] = -Infinity;
        mlTo.coord[baseIndex] = Infinity;

        var precision = mlModel.get('precision');
        if (precision >= 0 && typeof value === 'number') {
            value = +value.toFixed(Math.min(precision, 20));
        }

        mlFrom.coord[valueIndex] = mlTo.coord[valueIndex] = value;

        item = [mlFrom, mlTo, { // Extra option for tooltip and label
            type: mlType,
            valueIndex: item.valueIndex,
            // Force to use the value of calculated value.
            value: value
        }];
    }

    item = [
        dataTransform(seriesModel, item[0]),
        dataTransform(seriesModel, item[1]),
        extend({}, item[2])
    ];

    // Avoid line data type is extended by from(to) data type
    item[2].type = item[2].type || '';

    // Merge from option and to option into line option
    merge(item[2], item[0]);
    merge(item[2], item[1]);

    return item;
};

function isInifinity(val) {
    return !isNaN(val) && !isFinite(val);
}

// If a markLine has one dim
function ifMarkLineHasOnlyDim(dimIndex, fromCoord, toCoord, coordSys) {
    var otherDimIndex = 1 - dimIndex;
    var dimName = coordSys.dimensions[dimIndex];
    return isInifinity(fromCoord[otherDimIndex]) && isInifinity(toCoord[otherDimIndex])
        && fromCoord[dimIndex] === toCoord[dimIndex] && coordSys.getAxis(dimName).containData(fromCoord[dimIndex]);
}

function markLineFilter(coordSys, item) {
    if (coordSys.type === 'cartesian2d') {
        var fromCoord = item[0].coord;
        var toCoord = item[1].coord;
        // In case
        // {
        //  markLine: {
        //    data: [{ yAxis: 2 }]
        //  }
        // }
        if (
            fromCoord && toCoord &&
            (ifMarkLineHasOnlyDim(1, fromCoord, toCoord, coordSys)
            || ifMarkLineHasOnlyDim(0, fromCoord, toCoord, coordSys))
        ) {
            return true;
        }
    }
    return dataFilter$1(coordSys, item[0])
        && dataFilter$1(coordSys, item[1]);
}

function updateSingleMarkerEndLayout(
    data, idx, isFrom, seriesModel, api
) {
    var coordSys = seriesModel.coordinateSystem;
    var itemModel = data.getItemModel(idx);

    var point;
    var xPx = parsePercent$1(itemModel.get('x'), api.getWidth());
    var yPx = parsePercent$1(itemModel.get('y'), api.getHeight());
    if (!isNaN(xPx) && !isNaN(yPx)) {
        point = [xPx, yPx];
    }
    else {
        // Chart like bar may have there own marker positioning logic
        if (seriesModel.getMarkerPosition) {
            // Use the getMarkerPoisition
            point = seriesModel.getMarkerPosition(
                data.getValues(data.dimensions, idx)
            );
        }
        else {
            var dims = coordSys.dimensions;
            var x = data.get(dims[0], idx);
            var y = data.get(dims[1], idx);
            point = coordSys.dataToPoint([x, y]);
        }
        // Expand line to the edge of grid if value on one axis is Inifnity
        // In case
        //  markLine: {
        //    data: [{
        //      yAxis: 2
        //      // or
        //      type: 'average'
        //    }]
        //  }
        if (coordSys.type === 'cartesian2d') {
            var xAxis = coordSys.getAxis('x');
            var yAxis = coordSys.getAxis('y');
            var dims = coordSys.dimensions;
            if (isInifinity(data.get(dims[0], idx))) {
                point[0] = xAxis.toGlobalCoord(xAxis.getExtent()[isFrom ? 0 : 1]);
            }
            else if (isInifinity(data.get(dims[1], idx))) {
                point[1] = yAxis.toGlobalCoord(yAxis.getExtent()[isFrom ? 0 : 1]);
            }
        }

        // Use x, y if has any
        if (!isNaN(xPx)) {
            point[0] = xPx;
        }
        if (!isNaN(yPx)) {
            point[1] = yPx;
        }
    }

    data.setItemLayout(idx, point);
}

MarkerView.extend({

    type: 'markLine',

    // updateLayout: function (markLineModel, ecModel, api) {
    //     ecModel.eachSeries(function (seriesModel) {
    //         var mlModel = seriesModel.markLineModel;
    //         if (mlModel) {
    //             var mlData = mlModel.getData();
    //             var fromData = mlModel.__from;
    //             var toData = mlModel.__to;
    //             // Update visual and layout of from symbol and to symbol
    //             fromData.each(function (idx) {
    //                 updateSingleMarkerEndLayout(fromData, idx, true, seriesModel, api);
    //                 updateSingleMarkerEndLayout(toData, idx, false, seriesModel, api);
    //             });
    //             // Update layout of line
    //             mlData.each(function (idx) {
    //                 mlData.setItemLayout(idx, [
    //                     fromData.getItemLayout(idx),
    //                     toData.getItemLayout(idx)
    //                 ]);
    //             });

    //             this.markerGroupMap.get(seriesModel.id).updateLayout();

    //         }
    //     }, this);
    // },

    updateTransform: function (markLineModel, ecModel, api) {
        ecModel.eachSeries(function (seriesModel) {
            var mlModel = seriesModel.markLineModel;
            if (mlModel) {
                var mlData = mlModel.getData();
                var fromData = mlModel.__from;
                var toData = mlModel.__to;
                // Update visual and layout of from symbol and to symbol
                fromData.each(function (idx) {
                    updateSingleMarkerEndLayout(fromData, idx, true, seriesModel, api);
                    updateSingleMarkerEndLayout(toData, idx, false, seriesModel, api);
                });
                // Update layout of line
                mlData.each(function (idx) {
                    mlData.setItemLayout(idx, [
                        fromData.getItemLayout(idx),
                        toData.getItemLayout(idx)
                    ]);
                });

                this.markerGroupMap.get(seriesModel.id).updateLayout();

            }
        }, this);
    },

    renderSeries: function (seriesModel, mlModel, ecModel, api) {
        var coordSys = seriesModel.coordinateSystem;
        var seriesId = seriesModel.id;
        var seriesData = seriesModel.getData();

        var lineDrawMap = this.markerGroupMap;
        var lineDraw = lineDrawMap.get(seriesId)
            || lineDrawMap.set(seriesId, new LineDraw());
        this.group.add(lineDraw.group);

        var mlData = createList$2(coordSys, seriesModel, mlModel);

        var fromData = mlData.from;
        var toData = mlData.to;
        var lineData = mlData.line;

        mlModel.__from = fromData;
        mlModel.__to = toData;
        // Line data for tooltip and formatter
        mlModel.setData(lineData);

        var symbolType = mlModel.get('symbol');
        var symbolSize = mlModel.get('symbolSize');
        if (!isArray(symbolType)) {
            symbolType = [symbolType, symbolType];
        }
        if (typeof symbolSize === 'number') {
            symbolSize = [symbolSize, symbolSize];
        }

        // Update visual and layout of from symbol and to symbol
        mlData.from.each(function (idx) {
            updateDataVisualAndLayout(fromData, idx, true);
            updateDataVisualAndLayout(toData, idx, false);
        });

        // Update visual and layout of line
        lineData.each(function (idx) {
            var lineColor = lineData.getItemModel(idx).get('lineStyle.color');
            lineData.setItemVisual(idx, {
                color: lineColor || fromData.getItemVisual(idx, 'color')
            });
            lineData.setItemLayout(idx, [
                fromData.getItemLayout(idx),
                toData.getItemLayout(idx)
            ]);

            lineData.setItemVisual(idx, {
                'fromSymbolSize': fromData.getItemVisual(idx, 'symbolSize'),
                'fromSymbol': fromData.getItemVisual(idx, 'symbol'),
                'toSymbolSize': toData.getItemVisual(idx, 'symbolSize'),
                'toSymbol': toData.getItemVisual(idx, 'symbol')
            });
        });

        lineDraw.updateData(lineData);

        // Set host model for tooltip
        // FIXME
        mlData.line.eachItemGraphicEl(function (el, idx) {
            el.traverse(function (child) {
                child.dataModel = mlModel;
            });
        });

        function updateDataVisualAndLayout(data, idx, isFrom) {
            var itemModel = data.getItemModel(idx);

            updateSingleMarkerEndLayout(
                data, idx, isFrom, seriesModel, api
            );

            data.setItemVisual(idx, {
                symbolSize: itemModel.get('symbolSize') || symbolSize[isFrom ? 0 : 1],
                symbol: itemModel.get('symbol', true) || symbolType[isFrom ? 0 : 1],
                color: itemModel.get('itemStyle.color') || seriesData.getVisual('color')
            });
        }

        lineDraw.__keep = true;

        lineDraw.group.silent = mlModel.get('silent') || seriesModel.get('silent');
    }
});

/**
 * @inner
 * @param {module:echarts/coord/*} coordSys
 * @param {module:echarts/model/Series} seriesModel
 * @param {module:echarts/model/Model} mpModel
 */
function createList$2(coordSys, seriesModel, mlModel) {

    var coordDimsInfos;
    if (coordSys) {
        coordDimsInfos = map(coordSys && coordSys.dimensions, function (coordDim) {
            var info = seriesModel.getData().getDimensionInfo(
                seriesModel.getData().mapDimension(coordDim)
            ) || {};
            // In map series data don't have lng and lat dimension. Fallback to same with coordSys
            return defaults({name: coordDim}, info);
        });
    }
    else {
        coordDimsInfos =[{
            name: 'value',
            type: 'float'
        }];
    }

    var fromData = new List(coordDimsInfos, mlModel);
    var toData = new List(coordDimsInfos, mlModel);
    // No dimensions
    var lineData = new List([], mlModel);

    var optData = map(mlModel.get('data'), curry(
        markLineTransform, seriesModel, coordSys, mlModel
    ));
    if (coordSys) {
        optData = filter(
            optData, curry(markLineFilter, coordSys)
        );
    }
    var dimValueGetter$$1 = coordSys ? dimValueGetter : function (item) {
        return item.value;
    };
    fromData.initData(
        map(optData, function (item) { return item[0]; }),
        null, dimValueGetter$$1
    );
    toData.initData(
        map(optData, function (item) { return item[1]; }),
        null, dimValueGetter$$1
    );
    lineData.initData(
        map(optData, function (item) { return item[2]; })
    );
    lineData.hasItemOption = true;

    return {
        from: fromData,
        to: toData,
        line: lineData
    };
}

registerPreprocessor(function (opt) {
    // Make sure markLine component is enabled
    opt.markLine = opt.markLine || {};
});

MarkerModel.extend({

    type: 'markArea',

    defaultOption: {
        zlevel: 0,
        // PENDING
        z: 1,
        tooltip: {
            trigger: 'item'
        },
        // markArea should fixed on the coordinate system
        animation: false,
        label: {
            show: true,
            position: 'top'
        },
        itemStyle: {
            // color and borderColor default to use color from series
            // color: 'auto'
            // borderColor: 'auto'
            borderWidth: 0
        },

        emphasis: {
            label: {
                show: true,
                position: 'top'
            }
        }
    }
});

// TODO Better on polar

var markAreaTransform = function (seriesModel, coordSys, maModel, item) {
    var lt = dataTransform(seriesModel, item[0]);
    var rb = dataTransform(seriesModel, item[1]);
    var retrieve$$1 = retrieve;

    // FIXME make sure lt is less than rb
    var ltCoord = lt.coord;
    var rbCoord = rb.coord;
    ltCoord[0] = retrieve$$1(ltCoord[0], -Infinity);
    ltCoord[1] = retrieve$$1(ltCoord[1], -Infinity);

    rbCoord[0] = retrieve$$1(rbCoord[0], Infinity);
    rbCoord[1] = retrieve$$1(rbCoord[1], Infinity);

    // Merge option into one
    var result = mergeAll([{}, lt, rb]);

    result.coord = [
        lt.coord, rb.coord
    ];
    result.x0 = lt.x;
    result.y0 = lt.y;
    result.x1 = rb.x;
    result.y1 = rb.y;
    return result;
};

function isInifinity$1(val) {
    return !isNaN(val) && !isFinite(val);
}

// If a markArea has one dim
function ifMarkLineHasOnlyDim$1(dimIndex, fromCoord, toCoord, coordSys) {
    var otherDimIndex = 1 - dimIndex;
    return isInifinity$1(fromCoord[otherDimIndex]) && isInifinity$1(toCoord[otherDimIndex]);
}

function markAreaFilter(coordSys, item) {
    var fromCoord = item.coord[0];
    var toCoord = item.coord[1];
    if (coordSys.type === 'cartesian2d') {
        // In case
        // {
        //  markArea: {
        //    data: [{ yAxis: 2 }]
        //  }
        // }
        if (
            fromCoord && toCoord &&
            (ifMarkLineHasOnlyDim$1(1, fromCoord, toCoord, coordSys)
            || ifMarkLineHasOnlyDim$1(0, fromCoord, toCoord, coordSys))
        ) {
            return true;
        }
    }
    return dataFilter$1(coordSys, {
            coord: fromCoord,
            x: item.x0,
            y: item.y0
        })
        || dataFilter$1(coordSys, {
            coord: toCoord,
            x: item.x1,
            y: item.y1
        });
}

// dims can be ['x0', 'y0'], ['x1', 'y1'], ['x0', 'y1'], ['x1', 'y0']
function getSingleMarkerEndPoint(data, idx, dims, seriesModel, api) {
    var coordSys = seriesModel.coordinateSystem;
    var itemModel = data.getItemModel(idx);

    var point;
    var xPx = parsePercent$1(itemModel.get(dims[0]), api.getWidth());
    var yPx = parsePercent$1(itemModel.get(dims[1]), api.getHeight());
    if (!isNaN(xPx) && !isNaN(yPx)) {
        point = [xPx, yPx];
    }
    else {
        // Chart like bar may have there own marker positioning logic
        if (seriesModel.getMarkerPosition) {
            // Use the getMarkerPoisition
            point = seriesModel.getMarkerPosition(
                data.getValues(dims, idx)
            );
        }
        else {
            var x = data.get(dims[0], idx);
            var y = data.get(dims[1], idx);
            var pt = [x, y];
            coordSys.clampData && coordSys.clampData(pt, pt);
            point = coordSys.dataToPoint(pt, true);
        }
        if (coordSys.type === 'cartesian2d') {
            var xAxis = coordSys.getAxis('x');
            var yAxis = coordSys.getAxis('y');
            var x = data.get(dims[0], idx);
            var y = data.get(dims[1], idx);
            if (isInifinity$1(x)) {
                point[0] = xAxis.toGlobalCoord(xAxis.getExtent()[dims[0] === 'x0' ? 0 : 1]);
            }
            else if (isInifinity$1(y)) {
                point[1] = yAxis.toGlobalCoord(yAxis.getExtent()[dims[1] === 'y0' ? 0 : 1]);
            }
        }

        // Use x, y if has any
        if (!isNaN(xPx)) {
            point[0] = xPx;
        }
        if (!isNaN(yPx)) {
            point[1] = yPx;
        }
    }

    return point;
}

var dimPermutations = [['x0', 'y0'], ['x1', 'y0'], ['x1', 'y1'], ['x0', 'y1']];

MarkerView.extend({

    type: 'markArea',

    // updateLayout: function (markAreaModel, ecModel, api) {
    //     ecModel.eachSeries(function (seriesModel) {
    //         var maModel = seriesModel.markAreaModel;
    //         if (maModel) {
    //             var areaData = maModel.getData();
    //             areaData.each(function (idx) {
    //                 var points = zrUtil.map(dimPermutations, function (dim) {
    //                     return getSingleMarkerEndPoint(areaData, idx, dim, seriesModel, api);
    //                 });
    //                 // Layout
    //                 areaData.setItemLayout(idx, points);
    //                 var el = areaData.getItemGraphicEl(idx);
    //                 el.setShape('points', points);
    //             });
    //         }
    //     }, this);
    // },

    updateTransform: function (markAreaModel, ecModel, api) {
        ecModel.eachSeries(function (seriesModel) {
            var maModel = seriesModel.markAreaModel;
            if (maModel) {
                var areaData = maModel.getData();
                areaData.each(function (idx) {
                    var points = map(dimPermutations, function (dim) {
                        return getSingleMarkerEndPoint(areaData, idx, dim, seriesModel, api);
                    });
                    // Layout
                    areaData.setItemLayout(idx, points);
                    var el = areaData.getItemGraphicEl(idx);
                    el.setShape('points', points);
                });
            }
        }, this);
    },

    renderSeries: function (seriesModel, maModel, ecModel, api) {
        var coordSys = seriesModel.coordinateSystem;
        var seriesName = seriesModel.name;
        var seriesData = seriesModel.getData();

        var areaGroupMap = this.markerGroupMap;
        var polygonGroup = areaGroupMap.get(seriesName)
            || areaGroupMap.set(seriesName, {group: new Group()});

        this.group.add(polygonGroup.group);
        polygonGroup.__keep = true;

        var areaData = createList$3(coordSys, seriesModel, maModel);

        // Line data for tooltip and formatter
        maModel.setData(areaData);

        // Update visual and layout of line
        areaData.each(function (idx) {
            // Layout
            areaData.setItemLayout(idx, map(dimPermutations, function (dim) {
                return getSingleMarkerEndPoint(areaData, idx, dim, seriesModel, api);
            }));

            // Visual
            areaData.setItemVisual(idx, {
                color: seriesData.getVisual('color')
            });
        });


        areaData.diff(polygonGroup.__data)
            .add(function (idx) {
                var polygon = new Polygon({
                    shape: {
                        points: areaData.getItemLayout(idx)
                    }
                });
                areaData.setItemGraphicEl(idx, polygon);
                polygonGroup.group.add(polygon);
            })
            .update(function (newIdx, oldIdx) {
                var polygon = polygonGroup.__data.getItemGraphicEl(oldIdx);
                updateProps(polygon, {
                    shape: {
                        points: areaData.getItemLayout(newIdx)
                    }
                }, maModel, newIdx);
                polygonGroup.group.add(polygon);
                areaData.setItemGraphicEl(newIdx, polygon);
            })
            .remove(function (idx) {
                var polygon = polygonGroup.__data.getItemGraphicEl(idx);
                polygonGroup.group.remove(polygon);
            })
            .execute();

        areaData.eachItemGraphicEl(function (polygon, idx) {
            var itemModel = areaData.getItemModel(idx);
            var labelModel = itemModel.getModel('label');
            var labelHoverModel = itemModel.getModel('emphasis.label');
            var color = areaData.getItemVisual(idx, 'color');
            polygon.useStyle(
                defaults(
                    itemModel.getModel('itemStyle').getItemStyle(),
                    {
                        fill: modifyAlpha(color, 0.4),
                        stroke: color
                    }
                )
            );

            polygon.hoverStyle = itemModel.getModel('emphasis.itemStyle').getItemStyle();

            setLabelStyle(
                polygon.style, polygon.hoverStyle, labelModel, labelHoverModel,
                {
                    labelFetcher: maModel,
                    labelDataIndex: idx,
                    defaultText: areaData.getName(idx) || '',
                    isRectText: true,
                    autoColor: color
                }
            );

            setHoverStyle(polygon, {});

            polygon.dataModel = maModel;
        });

        polygonGroup.__data = areaData;

        polygonGroup.group.silent = maModel.get('silent') || seriesModel.get('silent');
    }
});

/**
 * @inner
 * @param {module:echarts/coord/*} coordSys
 * @param {module:echarts/model/Series} seriesModel
 * @param {module:echarts/model/Model} mpModel
 */
function createList$3(coordSys, seriesModel, maModel) {

    var coordDimsInfos;
    var areaData;
    var dims = ['x0', 'y0', 'x1', 'y1'];
    if (coordSys) {
        coordDimsInfos = map(coordSys && coordSys.dimensions, function (coordDim) {
            var data = seriesModel.getData();
            var info = data.getDimensionInfo(
                data.mapDimension(coordDim)
            ) || {};
            // In map series data don't have lng and lat dimension. Fallback to same with coordSys
            return defaults({name: coordDim}, info);
        });
        areaData = new List(map(dims, function (dim, idx) {
            return {
                name: dim,
                type: coordDimsInfos[idx % 2].type
            };
        }), maModel);
    }
    else {
        coordDimsInfos =[{
            name: 'value',
            type: 'float'
        }];
        areaData = new List(coordDimsInfos, maModel);
    }

    var optData = map(maModel.get('data'), curry(
        markAreaTransform, seriesModel, coordSys, maModel
    ));
    if (coordSys) {
        optData = filter(
            optData, curry(markAreaFilter, coordSys)
        );
    }

    var dimValueGetter$$1 = coordSys ? function (item, dimName, dataIndex, dimIndex) {
        return item.coord[Math.floor(dimIndex / 2)][dimIndex % 2];
    } : function (item) {
        return item.value;
    };
    areaData.initData(optData, null, dimValueGetter$$1);
    areaData.hasItemOption = true;
    return areaData;
}

registerPreprocessor(function (opt) {
    // Make sure markArea component is enabled
    opt.markArea = opt.markArea || {};
});

var preprocessor$3 = function (option) {
    var timelineOpt = option && option.timeline;

    if (!isArray(timelineOpt)) {
        timelineOpt = timelineOpt ? [timelineOpt] : [];
    }

    each$1(timelineOpt, function (opt) {
        if (!opt) {
            return;
        }

        compatibleEC2(opt);
    });
};

function compatibleEC2(opt) {
    var type = opt.type;

    var ec2Types = {'number': 'value', 'time': 'time'};

    // Compatible with ec2
    if (ec2Types[type]) {
        opt.axisType = ec2Types[type];
        delete opt.type;
    }

    transferItem(opt);

    if (has$2(opt, 'controlPosition')) {
        var controlStyle = opt.controlStyle || (opt.controlStyle = {});
        if (!has$2(controlStyle, 'position')) {
            controlStyle.position = opt.controlPosition;
        }
        if (controlStyle.position === 'none' && !has$2(controlStyle, 'show')) {
            controlStyle.show = false;
            delete controlStyle.position;
        }
        delete opt.controlPosition;
    }

    each$1(opt.data || [], function (dataItem) {
        if (isObject$1(dataItem) && !isArray(dataItem)) {
            if (!has$2(dataItem, 'value') && has$2(dataItem, 'name')) {
                // In ec2, using name as value.
                dataItem.value = dataItem.name;
            }
            transferItem(dataItem);
        }
    });
}

function transferItem(opt) {
    var itemStyle = opt.itemStyle || (opt.itemStyle = {});

    var itemStyleEmphasis = itemStyle.emphasis || (itemStyle.emphasis = {});

    // Transfer label out
    var label = opt.label || (opt.label || {});
    var labelNormal = label.normal || (label.normal = {});
    var excludeLabelAttr = {normal: 1, emphasis: 1};

    each$1(label, function (value, name) {
        if (!excludeLabelAttr[name] && !has$2(labelNormal, name)) {
            labelNormal[name] = value;
        }
    });

    if (itemStyleEmphasis.label && !has$2(label, 'emphasis')) {
        label.emphasis = itemStyleEmphasis.label;
        delete itemStyleEmphasis.label;
    }
}

function has$2(obj, attr) {
    return obj.hasOwnProperty(attr);
}

ComponentModel.registerSubTypeDefaulter('timeline', function () {
    // Only slider now.
    return 'slider';
});

registerAction(

    {type: 'timelineChange', event: 'timelineChanged', update: 'prepareAndUpdate'},

    function (payload, ecModel) {

        var timelineModel = ecModel.getComponent('timeline');
        if (timelineModel && payload.currentIndex != null) {
            timelineModel.setCurrentIndex(payload.currentIndex);

            if (!timelineModel.get('loop', true) && timelineModel.isIndexMax()) {
                timelineModel.setPlayState(false);
            }
        }

        // Set normalized currentIndex to payload.
        ecModel.resetOption('timeline');

        return defaults({
            currentIndex: timelineModel.option.currentIndex
        }, payload);
    }
);

registerAction(

    {type: 'timelinePlayChange', event: 'timelinePlayChanged', update: 'update'},

    function (payload, ecModel) {
        var timelineModel = ecModel.getComponent('timeline');
        if (timelineModel && payload.playState != null) {
            timelineModel.setPlayState(payload.playState);
        }
    }
);

var TimelineModel = ComponentModel.extend({

    type: 'timeline',

    layoutMode: 'box',

    /**
     * @protected
     */
    defaultOption: {

        zlevel: 0,                  // 一级层叠
        z: 4,                       // 二级层叠
        show: true,

        axisType: 'time',  // 模式是时间类型，支持 value, category

        realtime: true,

        left: '20%',
        top: null,
        right: '20%',
        bottom: 0,
        width: null,
        height: 40,
        padding: 5,

        controlPosition: 'left',           // 'left' 'right' 'top' 'bottom' 'none'
        autoPlay: false,
        rewind: false,                     // 反向播放
        loop: true,
        playInterval: 2000,                // 播放时间间隔，单位ms

        currentIndex: 0,

        itemStyle: {},
        label: {
            color: '#000'
        },

        data: []
    },

    /**
     * @override
     */
    init: function (option, parentModel, ecModel) {

        /**
         * @private
         * @type {module:echarts/data/List}
         */
        this._data;

        /**
         * @private
         * @type {Array.<string>}
         */
        this._names;

        this.mergeDefaultAndTheme(option, ecModel);
        this._initData();
    },

    /**
     * @override
     */
    mergeOption: function (option) {
        TimelineModel.superApply(this, 'mergeOption', arguments);
        this._initData();
    },

    /**
     * @param {number} [currentIndex]
     */
    setCurrentIndex: function (currentIndex) {
        if (currentIndex == null) {
            currentIndex = this.option.currentIndex;
        }
        var count = this._data.count();

        if (this.option.loop) {
            currentIndex = (currentIndex % count + count) % count;
        }
        else {
            currentIndex >= count && (currentIndex = count - 1);
            currentIndex < 0 && (currentIndex = 0);
        }

        this.option.currentIndex = currentIndex;
    },

    /**
     * @return {number} currentIndex
     */
    getCurrentIndex: function () {
        return this.option.currentIndex;
    },

    /**
     * @return {boolean}
     */
    isIndexMax: function () {
        return this.getCurrentIndex() >= this._data.count() - 1;
    },

    /**
     * @param {boolean} state true: play, false: stop
     */
    setPlayState: function (state) {
        this.option.autoPlay = !!state;
    },

    /**
     * @return {boolean} true: play, false: stop
     */
    getPlayState: function () {
        return !!this.option.autoPlay;
    },

    /**
     * @private
     */
    _initData: function () {
        var thisOption = this.option;
        var dataArr = thisOption.data || [];
        var axisType = thisOption.axisType;
        var names = this._names = [];

        if (axisType === 'category') {
            var idxArr = [];
            each$1(dataArr, function (item, index) {
                var value = getDataItemValue(item);
                var newItem;

                if (isObject$1(item)) {
                    newItem = clone(item);
                    newItem.value = index;
                }
                else {
                    newItem = index;
                }

                idxArr.push(newItem);

                if (!isString(value) && (value == null || isNaN(value))) {
                    value = '';
                }

                names.push(value + '');
            });
            dataArr = idxArr;
        }

        var dimType = ({category: 'ordinal', time: 'time'})[axisType] || 'number';

        var data = this._data = new List([{name: 'value', type: dimType}], this);

        data.initData(dataArr, names);
    },

    getData: function () {
        return this._data;
    },

    /**
     * @public
     * @return {Array.<string>} categoreis
     */
    getCategories: function () {
        if (this.get('axisType') === 'category') {
            return this._names.slice();
        }
    }

});

var SliderTimelineModel = TimelineModel.extend({

    type: 'timeline.slider',

    /**
     * @protected
     */
    defaultOption: {

        backgroundColor: 'rgba(0,0,0,0)',   // 时间轴背景颜色
        borderColor: '#ccc',               // 时间轴边框颜色
        borderWidth: 0,                    // 时间轴边框线宽，单位px，默认为0（无边框）

        orient: 'horizontal',              // 'vertical'
        inverse: false,

        tooltip: {                          // boolean or Object
            trigger: 'item'                 // data item may also have tootip attr.
        },

        symbol: 'emptyCircle',
        symbolSize: 10,

        lineStyle: {
            show: true,
            width: 2,
            color: '#304654'
        },
        label: {                            // 文本标签
            position: 'auto',           // auto left right top bottom
                                        // When using number, label position is not
                                        // restricted by viewRect.
                                        // positive: right/bottom, negative: left/top
            show: true,
            interval: 'auto',
            rotate: 0,
            // formatter: null,
            // 其余属性默认使用全局文本样式，详见TEXTSTYLE
            color: '#304654'
        },
        itemStyle: {
            color: '#304654',
            borderWidth: 1
        },

        checkpointStyle: {
            symbol: 'circle',
            symbolSize: 13,
            color: '#c23531',
            borderWidth: 5,
            borderColor: 'rgba(194,53,49, 0.5)',
            animation: true,
            animationDuration: 300,
            animationEasing: 'quinticInOut'
        },

        controlStyle: {
            show: true,
            showPlayBtn: true,
            showPrevBtn: true,
            showNextBtn: true,
            itemSize: 22,
            itemGap: 12,
            position: 'left',  // 'left' 'right' 'top' 'bottom'
            playIcon: 'path://M31.6,53C17.5,53,6,41.5,6,27.4S17.5,1.8,31.6,1.8C45.7,1.8,57.2,13.3,57.2,27.4S45.7,53,31.6,53z M31.6,3.3 C18.4,3.3,7.5,14.1,7.5,27.4c0,13.3,10.8,24.1,24.1,24.1C44.9,51.5,55.7,40.7,55.7,27.4C55.7,14.1,44.9,3.3,31.6,3.3z M24.9,21.3 c0-2.2,1.6-3.1,3.5-2l10.5,6.1c1.899,1.1,1.899,2.9,0,4l-10.5,6.1c-1.9,1.1-3.5,0.2-3.5-2V21.3z', // jshint ignore:line
            stopIcon: 'path://M30.9,53.2C16.8,53.2,5.3,41.7,5.3,27.6S16.8,2,30.9,2C45,2,56.4,13.5,56.4,27.6S45,53.2,30.9,53.2z M30.9,3.5C17.6,3.5,6.8,14.4,6.8,27.6c0,13.3,10.8,24.1,24.101,24.1C44.2,51.7,55,40.9,55,27.6C54.9,14.4,44.1,3.5,30.9,3.5z M36.9,35.8c0,0.601-0.4,1-0.9,1h-1.3c-0.5,0-0.9-0.399-0.9-1V19.5c0-0.6,0.4-1,0.9-1H36c0.5,0,0.9,0.4,0.9,1V35.8z M27.8,35.8 c0,0.601-0.4,1-0.9,1h-1.3c-0.5,0-0.9-0.399-0.9-1V19.5c0-0.6,0.4-1,0.9-1H27c0.5,0,0.9,0.4,0.9,1L27.8,35.8L27.8,35.8z', // jshint ignore:line
            nextIcon: 'path://M18.6,50.8l22.5-22.5c0.2-0.2,0.3-0.4,0.3-0.7c0-0.3-0.1-0.5-0.3-0.7L18.7,4.4c-0.1-0.1-0.2-0.3-0.2-0.5 c0-0.4,0.3-0.8,0.8-0.8c0.2,0,0.5,0.1,0.6,0.3l23.5,23.5l0,0c0.2,0.2,0.3,0.4,0.3,0.7c0,0.3-0.1,0.5-0.3,0.7l-0.1,0.1L19.7,52 c-0.1,0.1-0.3,0.2-0.5,0.2c-0.4,0-0.8-0.3-0.8-0.8C18.4,51.2,18.5,51,18.6,50.8z', // jshint ignore:line
            prevIcon: 'path://M43,52.8L20.4,30.3c-0.2-0.2-0.3-0.4-0.3-0.7c0-0.3,0.1-0.5,0.3-0.7L42.9,6.4c0.1-0.1,0.2-0.3,0.2-0.5 c0-0.4-0.3-0.8-0.8-0.8c-0.2,0-0.5,0.1-0.6,0.3L18.3,28.8l0,0c-0.2,0.2-0.3,0.4-0.3,0.7c0,0.3,0.1,0.5,0.3,0.7l0.1,0.1L41.9,54 c0.1,0.1,0.3,0.2,0.5,0.2c0.4,0,0.8-0.3,0.8-0.8C43.2,53.2,43.1,53,43,52.8z', // jshint ignore:line

            color: '#304654',
            borderColor: '#304654',
            borderWidth: 1
        },

        emphasis: {
            label: {
                show: true,
                // 其余属性默认使用全局文本样式，详见TEXTSTYLE
                color: '#c23531'
            },

            itemStyle: {
                color: '#c23531'
            },

            controlStyle: {
                color: '#c23531',
                borderColor: '#c23531',
                borderWidth: 2
            }
        },
        data: []
    }

});

mixin(SliderTimelineModel, dataFormatMixin);

var TimelineView = Component.extend({
    type: 'timeline'
});

/**
 * Extend axis 2d
 * @constructor module:echarts/coord/cartesian/Axis2D
 * @extends {module:echarts/coord/cartesian/Axis}
 * @param {string} dim
 * @param {*} scale
 * @param {Array.<number>} coordExtent
 * @param {string} axisType
 * @param {string} position
 */
var TimelineAxis = function (dim, scale, coordExtent, axisType) {

    Axis.call(this, dim, scale, coordExtent);

    /**
     * Axis type
     *  - 'category'
     *  - 'value'
     *  - 'time'
     *  - 'log'
     * @type {string}
     */
    this.type = axisType || 'value';

    /**
     * @private
     * @type {number}
     */
    this._autoLabelInterval;

    /**
     * Axis model
     * @param {module:echarts/component/TimelineModel}
     */
    this.model = null;
};

TimelineAxis.prototype = {

    constructor: TimelineAxis,

    /**
     * @public
     * @return {number}
     */
    getLabelInterval: function () {
        var timelineModel = this.model;
        var labelModel = timelineModel.getModel('label');
        var labelInterval = labelModel.get('interval');

        if (labelInterval != null && labelInterval != 'auto') {
            return labelInterval;
        }

        var labelInterval = this._autoLabelInterval;

        if (!labelInterval) {
            labelInterval = this._autoLabelInterval = getAxisLabelInterval(
                map(this.scale.getTicks(), this.dataToCoord, this),
                getFormattedLabels(this, labelModel.get('formatter')),
                labelModel.getFont(),
                timelineModel.get('orient') === 'horizontal' ? 0 : 90,
                labelModel.get('rotate')
            );
        }

        return labelInterval;
    },

    /**
     * If label is ignored.
     * Automatically used when axis is category and label can not be all shown
     * @public
     * @param  {number} idx
     * @return {boolean}
     */
    isLabelIgnored: function (idx) {
        if (this.type === 'category') {
            var labelInterval = this.getLabelInterval();
            return ((typeof labelInterval === 'function')
                && !labelInterval(idx, this.scale.getLabel(idx)))
                || idx % (labelInterval + 1);
        }
    }

};

inherits(TimelineAxis, Axis);

var bind$6 = bind;
var each$28 = each$1;

var PI$4 = Math.PI;

TimelineView.extend({

    type: 'timeline.slider',

    init: function (ecModel, api) {

        this.api = api;

        /**
         * @private
         * @type {module:echarts/component/timeline/TimelineAxis}
         */
        this._axis;

        /**
         * @private
         * @type {module:zrender/core/BoundingRect}
         */
        this._viewRect;

        /**
         * @type {number}
         */
        this._timer;

        /**
         * @type {module:zrender/Element}
         */
        this._currentPointer;

        /**
         * @type {module:zrender/container/Group}
         */
        this._mainGroup;

        /**
         * @type {module:zrender/container/Group}
         */
        this._labelGroup;
    },

    /**
     * @override
     */
    render: function (timelineModel, ecModel, api, payload) {
        this.model = timelineModel;
        this.api = api;
        this.ecModel = ecModel;

        this.group.removeAll();

        if (timelineModel.get('show', true)) {

            var layoutInfo = this._layout(timelineModel, api);
            var mainGroup = this._createGroup('mainGroup');
            var labelGroup = this._createGroup('labelGroup');

            /**
             * @private
             * @type {module:echarts/component/timeline/TimelineAxis}
             */
            var axis = this._axis = this._createAxis(layoutInfo, timelineModel);

            timelineModel.formatTooltip = function (dataIndex) {
                return encodeHTML(axis.scale.getLabel(dataIndex));
            };

            each$28(
                ['AxisLine', 'AxisTick', 'Control', 'CurrentPointer'],
                function (name) {
                    this['_render' + name](layoutInfo, mainGroup, axis, timelineModel);
                },
                this
            );

            this._renderAxisLabel(layoutInfo, labelGroup, axis, timelineModel);
            this._position(layoutInfo, timelineModel);
        }

        this._doPlayStop();
    },

    /**
     * @override
     */
    remove: function () {
        this._clearTimer();
        this.group.removeAll();
    },

    /**
     * @override
     */
    dispose: function () {
        this._clearTimer();
    },

    _layout: function (timelineModel, api) {
        var labelPosOpt = timelineModel.get('label.position');
        var orient = timelineModel.get('orient');
        var viewRect = getViewRect$4(timelineModel, api);
        // Auto label offset.
        if (labelPosOpt == null || labelPosOpt === 'auto') {
            labelPosOpt = orient === 'horizontal'
                ? ((viewRect.y + viewRect.height / 2) < api.getHeight() / 2 ? '-' : '+')
                : ((viewRect.x + viewRect.width / 2) < api.getWidth() / 2 ? '+' : '-');
        }
        else if (isNaN(labelPosOpt)) {
            labelPosOpt = ({
                horizontal: {top: '-', bottom: '+'},
                vertical: {left: '-', right: '+'}
            })[orient][labelPosOpt];
        }

        var labelAlignMap = {
            horizontal: 'center',
            vertical: (labelPosOpt >= 0 || labelPosOpt === '+') ? 'left' : 'right'
        };

        var labelBaselineMap = {
            horizontal: (labelPosOpt >= 0 || labelPosOpt === '+') ? 'top' : 'bottom',
            vertical: 'middle'
        };
        var rotationMap = {
            horizontal: 0,
            vertical: PI$4 / 2
        };

        // Position
        var mainLength = orient === 'vertical' ? viewRect.height : viewRect.width;

        var controlModel = timelineModel.getModel('controlStyle');
        var showControl = controlModel.get('show', true);
        var controlSize = showControl ? controlModel.get('itemSize') : 0;
        var controlGap = showControl ? controlModel.get('itemGap') : 0;
        var sizePlusGap = controlSize + controlGap;

        // Special label rotate.
        var labelRotation = timelineModel.get('label.rotate') || 0;
        labelRotation = labelRotation * PI$4 / 180; // To radian.

        var playPosition;
        var prevBtnPosition;
        var nextBtnPosition;
        var axisExtent;
        var controlPosition = controlModel.get('position', true);
        var showPlayBtn = showControl && controlModel.get('showPlayBtn', true);
        var showPrevBtn = showControl && controlModel.get('showPrevBtn', true);
        var showNextBtn = showControl && controlModel.get('showNextBtn', true);
        var xLeft = 0;
        var xRight = mainLength;

        // position[0] means left, position[1] means middle.
        if (controlPosition === 'left' || controlPosition === 'bottom') {
            showPlayBtn && (playPosition = [0, 0], xLeft += sizePlusGap);
            showPrevBtn && (prevBtnPosition = [xLeft, 0], xLeft += sizePlusGap);
            showNextBtn && (nextBtnPosition = [xRight - controlSize, 0], xRight -= sizePlusGap);
        }
        else { // 'top' 'right'
            showPlayBtn && (playPosition = [xRight - controlSize, 0], xRight -= sizePlusGap);
            showPrevBtn && (prevBtnPosition = [0, 0], xLeft += sizePlusGap);
            showNextBtn && (nextBtnPosition = [xRight - controlSize, 0], xRight -= sizePlusGap);
        }
        axisExtent = [xLeft, xRight];

        if (timelineModel.get('inverse')) {
            axisExtent.reverse();
        }

        return {
            viewRect: viewRect,
            mainLength: mainLength,
            orient: orient,

            rotation: rotationMap[orient],
            labelRotation: labelRotation,
            labelPosOpt: labelPosOpt,
            labelAlign: timelineModel.get('label.align') || labelAlignMap[orient],
            labelBaseline: timelineModel.get('label.verticalAlign')
                || timelineModel.get('label.baseline')
                || labelBaselineMap[orient],

            // Based on mainGroup.
            playPosition: playPosition,
            prevBtnPosition: prevBtnPosition,
            nextBtnPosition: nextBtnPosition,
            axisExtent: axisExtent,

            controlSize: controlSize,
            controlGap: controlGap
        };
    },

    _position: function (layoutInfo, timelineModel) {
        // Position is be called finally, because bounding rect is needed for
        // adapt content to fill viewRect (auto adapt offset).

        // Timeline may be not all in the viewRect when 'offset' is specified
        // as a number, because it is more appropriate that label aligns at
        // 'offset' but not the other edge defined by viewRect.

        var mainGroup = this._mainGroup;
        var labelGroup = this._labelGroup;

        var viewRect = layoutInfo.viewRect;
        if (layoutInfo.orient === 'vertical') {
            // transform to horizontal, inverse rotate by left-top point.
            var m = create$1();
            var rotateOriginX = viewRect.x;
            var rotateOriginY = viewRect.y + viewRect.height;
            translate(m, m, [-rotateOriginX, -rotateOriginY]);
            rotate(m, m, -PI$4 / 2);
            translate(m, m, [rotateOriginX, rotateOriginY]);
            viewRect = viewRect.clone();
            viewRect.applyTransform(m);
        }

        var viewBound = getBound(viewRect);
        var mainBound = getBound(mainGroup.getBoundingRect());
        var labelBound = getBound(labelGroup.getBoundingRect());

        var mainPosition = mainGroup.position;
        var labelsPosition = labelGroup.position;

        labelsPosition[0] = mainPosition[0] = viewBound[0][0];

        var labelPosOpt = layoutInfo.labelPosOpt;

        if (isNaN(labelPosOpt)) { // '+' or '-'
            var mainBoundIdx = labelPosOpt === '+' ? 0 : 1;
            toBound(mainPosition, mainBound, viewBound, 1, mainBoundIdx);
            toBound(labelsPosition, labelBound, viewBound, 1, 1 - mainBoundIdx);
        }
        else {
            var mainBoundIdx = labelPosOpt >= 0 ? 0 : 1;
            toBound(mainPosition, mainBound, viewBound, 1, mainBoundIdx);
            labelsPosition[1] = mainPosition[1] + labelPosOpt;
        }

        mainGroup.attr('position', mainPosition);
        labelGroup.attr('position', labelsPosition);
        mainGroup.rotation = labelGroup.rotation = layoutInfo.rotation;

        setOrigin(mainGroup);
        setOrigin(labelGroup);

        function setOrigin(targetGroup) {
            var pos = targetGroup.position;
            targetGroup.origin = [
                viewBound[0][0] - pos[0],
                viewBound[1][0] - pos[1]
            ];
        }

        function getBound(rect) {
            // [[xmin, xmax], [ymin, ymax]]
            return [
                [rect.x, rect.x + rect.width],
                [rect.y, rect.y + rect.height]
            ];
        }

        function toBound(fromPos, from, to, dimIdx, boundIdx) {
            fromPos[dimIdx] += to[dimIdx][boundIdx] - from[dimIdx][boundIdx];
        }
    },

    _createAxis: function (layoutInfo, timelineModel) {
        var data = timelineModel.getData();
        var axisType = timelineModel.get('axisType');

        var scale = createScaleByModel(timelineModel, axisType);
        var dataExtent = data.getDataExtent('value');
        scale.setExtent(dataExtent[0], dataExtent[1]);
        this._customizeScale(scale, data);
        scale.niceTicks();

        var axis = new TimelineAxis('value', scale, layoutInfo.axisExtent, axisType);
        axis.model = timelineModel;

        return axis;
    },

    _customizeScale: function (scale, data) {

        scale.getTicks = function () {
            return data.mapArray(['value'], function (value) {
                return value;
            });
        };

        scale.getTicksLabels = function () {
            return map(this.getTicks(), scale.getLabel, scale);
        };
    },

    _createGroup: function (name) {
        var newGroup = this['_' + name] = new Group();
        this.group.add(newGroup);
        return newGroup;
    },

    _renderAxisLine: function (layoutInfo, group, axis, timelineModel) {
        var axisExtent = axis.getExtent();

        if (!timelineModel.get('lineStyle.show')) {
            return;
        }

        group.add(new Line({
            shape: {
                x1: axisExtent[0], y1: 0,
                x2: axisExtent[1], y2: 0
            },
            style: extend(
                {lineCap: 'round'},
                timelineModel.getModel('lineStyle').getLineStyle()
            ),
            silent: true,
            z2: 1
        }));
    },

    /**
     * @private
     */
    _renderAxisTick: function (layoutInfo, group, axis, timelineModel) {
        var data = timelineModel.getData();
        var ticks = axis.scale.getTicks();

        each$28(ticks, function (value, dataIndex) {

            var tickCoord = axis.dataToCoord(value);
            var itemModel = data.getItemModel(dataIndex);
            var itemStyleModel = itemModel.getModel('itemStyle');
            var hoverStyleModel = itemModel.getModel('emphasis.itemStyle');
            var symbolOpt = {
                position: [tickCoord, 0],
                onclick: bind$6(this._changeTimeline, this, dataIndex)
            };
            var el = giveSymbol(itemModel, itemStyleModel, group, symbolOpt);
            setHoverStyle(el, hoverStyleModel.getItemStyle());

            if (itemModel.get('tooltip')) {
                el.dataIndex = dataIndex;
                el.dataModel = timelineModel;
            }
            else {
                el.dataIndex = el.dataModel = null;
            }

        }, this);
    },

    /**
     * @private
     */
    _renderAxisLabel: function (layoutInfo, group, axis, timelineModel) {
        var labelModel = timelineModel.getModel('label');

        if (!labelModel.get('show')) {
            return;
        }

        var data = timelineModel.getData();
        var ticks = axis.scale.getTicks();
        var labels = getFormattedLabels(
            axis, labelModel.get('formatter')
        );
        var labelInterval = axis.getLabelInterval();

        each$28(ticks, function (tick, dataIndex) {
            if (axis.isLabelIgnored(dataIndex, labelInterval)) {
                return;
            }

            var itemModel = data.getItemModel(dataIndex);
            var normalLabelModel = itemModel.getModel('label');
            var hoverLabelModel = itemModel.getModel('emphasis.label');
            var tickCoord = axis.dataToCoord(tick);
            var textEl = new Text({
                position: [tickCoord, 0],
                rotation: layoutInfo.labelRotation - layoutInfo.rotation,
                onclick: bind$6(this._changeTimeline, this, dataIndex),
                silent: false
            });
            setTextStyle(textEl.style, normalLabelModel, {
                text: labels[dataIndex],
                textAlign: layoutInfo.labelAlign,
                textVerticalAlign: layoutInfo.labelBaseline
            });

            group.add(textEl);
            setHoverStyle(
                textEl, setTextStyle({}, hoverLabelModel)
            );

        }, this);
    },

    /**
     * @private
     */
    _renderControl: function (layoutInfo, group, axis, timelineModel) {
        var controlSize = layoutInfo.controlSize;
        var rotation = layoutInfo.rotation;

        var itemStyle = timelineModel.getModel('controlStyle').getItemStyle();
        var hoverStyle = timelineModel.getModel('emphasis.controlStyle').getItemStyle();
        var rect = [0, -controlSize / 2, controlSize, controlSize];
        var playState = timelineModel.getPlayState();
        var inverse = timelineModel.get('inverse', true);

        makeBtn(
            layoutInfo.nextBtnPosition,
            'controlStyle.nextIcon',
            bind$6(this._changeTimeline, this, inverse ? '-' : '+')
        );
        makeBtn(
            layoutInfo.prevBtnPosition,
            'controlStyle.prevIcon',
            bind$6(this._changeTimeline, this, inverse ? '+' : '-')
        );
        makeBtn(
            layoutInfo.playPosition,
            'controlStyle.' + (playState ? 'stopIcon' : 'playIcon'),
            bind$6(this._handlePlayClick, this, !playState),
            true
        );

        function makeBtn(position, iconPath, onclick, willRotate) {
            if (!position) {
                return;
            }
            var opt = {
                position: position,
                origin: [controlSize / 2, 0],
                rotation: willRotate ? -rotation : 0,
                rectHover: true,
                style: itemStyle,
                onclick: onclick
            };
            var btn = makeIcon(timelineModel, iconPath, rect, opt);
            group.add(btn);
            setHoverStyle(btn, hoverStyle);
        }
    },

    _renderCurrentPointer: function (layoutInfo, group, axis, timelineModel) {
        var data = timelineModel.getData();
        var currentIndex = timelineModel.getCurrentIndex();
        var pointerModel = data.getItemModel(currentIndex).getModel('checkpointStyle');
        var me = this;

        var callback = {
            onCreate: function (pointer) {
                pointer.draggable = true;
                pointer.drift = bind$6(me._handlePointerDrag, me);
                pointer.ondragend = bind$6(me._handlePointerDragend, me);
                pointerMoveTo(pointer, currentIndex, axis, timelineModel, true);
            },
            onUpdate: function (pointer) {
                pointerMoveTo(pointer, currentIndex, axis, timelineModel);
            }
        };

        // Reuse when exists, for animation and drag.
        this._currentPointer = giveSymbol(
            pointerModel, pointerModel, this._mainGroup, {}, this._currentPointer, callback
        );
    },

    _handlePlayClick: function (nextState) {
        this._clearTimer();
        this.api.dispatchAction({
            type: 'timelinePlayChange',
            playState: nextState,
            from: this.uid
        });
    },

    _handlePointerDrag: function (dx, dy, e) {
        this._clearTimer();
        this._pointerChangeTimeline([e.offsetX, e.offsetY]);
    },

    _handlePointerDragend: function (e) {
        this._pointerChangeTimeline([e.offsetX, e.offsetY], true);
    },

    _pointerChangeTimeline: function (mousePos, trigger) {
        var toCoord = this._toAxisCoord(mousePos)[0];

        var axis = this._axis;
        var axisExtent = asc(axis.getExtent().slice());

        toCoord > axisExtent[1] && (toCoord = axisExtent[1]);
        toCoord < axisExtent[0] && (toCoord = axisExtent[0]);

        this._currentPointer.position[0] = toCoord;
        this._currentPointer.dirty();

        var targetDataIndex = this._findNearestTick(toCoord);
        var timelineModel = this.model;

        if (trigger || (
            targetDataIndex !== timelineModel.getCurrentIndex()
            && timelineModel.get('realtime')
        )) {
            this._changeTimeline(targetDataIndex);
        }
    },

    _doPlayStop: function () {
        this._clearTimer();

        if (this.model.getPlayState()) {
            this._timer = setTimeout(
                bind$6(handleFrame, this),
                this.model.get('playInterval')
            );
        }

        function handleFrame() {
            // Do not cache
            var timelineModel = this.model;
            this._changeTimeline(
                timelineModel.getCurrentIndex()
                + (timelineModel.get('rewind', true) ? -1 : 1)
            );
        }
    },

    _toAxisCoord: function (vertex) {
        var trans = this._mainGroup.getLocalTransform();
        return applyTransform$1(vertex, trans, true);
    },

    _findNearestTick: function (axisCoord) {
        var data = this.model.getData();
        var dist = Infinity;
        var targetDataIndex;
        var axis = this._axis;

        data.each(['value'], function (value, dataIndex) {
            var coord = axis.dataToCoord(value);
            var d = Math.abs(coord - axisCoord);
            if (d < dist) {
                dist = d;
                targetDataIndex = dataIndex;
            }
        });

        return targetDataIndex;
    },

    _clearTimer: function () {
        if (this._timer) {
            clearTimeout(this._timer);
            this._timer = null;
        }
    },

    _changeTimeline: function (nextIndex) {
        var currentIndex = this.model.getCurrentIndex();

        if (nextIndex === '+') {
            nextIndex = currentIndex + 1;
        }
        else if (nextIndex === '-') {
            nextIndex = currentIndex - 1;
        }

        this.api.dispatchAction({
            type: 'timelineChange',
            currentIndex: nextIndex,
            from: this.uid
        });
    }

});

function getViewRect$4(model, api) {
    return getLayoutRect(
        model.getBoxLayoutParams(),
        {
            width: api.getWidth(),
            height: api.getHeight()
        },
        model.get('padding')
    );
}

function makeIcon(timelineModel, objPath, rect, opts) {
    var icon = makePath(
        timelineModel.get(objPath).replace(/^path:\/\//, ''),
        clone(opts || {}),
        new BoundingRect(rect[0], rect[1], rect[2], rect[3]),
        'center'
    );

    return icon;
}

/**
 * Create symbol or update symbol
 * opt: basic position and event handlers
 */
function giveSymbol(hostModel, itemStyleModel, group, opt, symbol, callback) {
    var color = itemStyleModel.get('color');

    if (!symbol) {
        var symbolType = hostModel.get('symbol');
        symbol = createSymbol(symbolType, -1, -1, 2, 2, color);
        symbol.setStyle('strokeNoScale', true);
        group.add(symbol);
        callback && callback.onCreate(symbol);
    }
    else {
        symbol.setColor(color);
        group.add(symbol); // Group may be new, also need to add.
        callback && callback.onUpdate(symbol);
    }

    // Style
    var itemStyle = itemStyleModel.getItemStyle(['color', 'symbol', 'symbolSize']);
    symbol.setStyle(itemStyle);

    // Transform and events.
    opt = merge({
        rectHover: true,
        z2: 100
    }, opt, true);

    var symbolSize = hostModel.get('symbolSize');
    symbolSize = symbolSize instanceof Array
        ? symbolSize.slice()
        : [+symbolSize, +symbolSize];
    symbolSize[0] /= 2;
    symbolSize[1] /= 2;
    opt.scale = symbolSize;

    var symbolOffset = hostModel.get('symbolOffset');
    if (symbolOffset) {
        var pos = opt.position = opt.position || [0, 0];
        pos[0] += parsePercent$1(symbolOffset[0], symbolSize[0]);
        pos[1] += parsePercent$1(symbolOffset[1], symbolSize[1]);
    }

    var symbolRotate = hostModel.get('symbolRotate');
    opt.rotation = (symbolRotate || 0) * Math.PI / 180 || 0;

    symbol.attr(opt);

    // FIXME
    // (1) When symbol.style.strokeNoScale is true and updateTransform is not performed,
    // getBoundingRect will return wrong result.
    // (This is supposed to be resolved in zrender, but it is a little difficult to
    // leverage performance and auto updateTransform)
    // (2) All of ancesters of symbol do not scale, so we can just updateTransform symbol.
    symbol.updateTransform();

    return symbol;
}

function pointerMoveTo(pointer, dataIndex, axis, timelineModel, noAnimation) {
    if (pointer.dragging) {
        return;
    }

    var pointerModel = timelineModel.getModel('checkpointStyle');
    var toCoord = axis.dataToCoord(timelineModel.getData().get(['value'], dataIndex));

    if (noAnimation || !pointerModel.get('animation', true)) {
        pointer.attr({position: [toCoord, 0]});
    }
    else {
        pointer.stopAnimation(true);
        pointer.animateTo(
            {position: [toCoord, 0]},
            pointerModel.get('animationDuration', true),
            pointerModel.get('animationEasing', true)
        );
    }
}

/**
 * DataZoom component entry
 */

registerPreprocessor(preprocessor$3);

var ToolboxModel = extendComponentModel({

    type: 'toolbox',

    layoutMode: {
        type: 'box',
        ignoreSize: true
    },

    mergeDefaultAndTheme: function (option) {
        ToolboxModel.superApply(this, 'mergeDefaultAndTheme', arguments);

        each$1(this.option.feature, function (featureOpt, featureName) {
            var Feature = get$1(featureName);
            Feature && merge(featureOpt, Feature.defaultOption);
        });
    },

    defaultOption: {

        show: true,

        z: 6,

        zlevel: 0,

        orient: 'horizontal',

        left: 'right',

        top: 'top',

        // right
        // bottom

        backgroundColor: 'transparent',

        borderColor: '#ccc',

        borderRadius: 0,

        borderWidth: 0,

        padding: 5,

        itemSize: 15,

        itemGap: 8,

        showTitle: true,

        iconStyle: {
            borderColor: '#666',
            color: 'none'
        },
        emphasis: {
            iconStyle: {
                borderColor: '#3E98C5'
            }
        }
        // textStyle: {},

        // feature
    }
});

extendComponentView({

    type: 'toolbox',

    render: function (toolboxModel, ecModel, api, payload) {
        var group = this.group;
        group.removeAll();

        if (!toolboxModel.get('show')) {
            return;
        }

        var itemSize = +toolboxModel.get('itemSize');
        var featureOpts = toolboxModel.get('feature') || {};
        var features = this._features || (this._features = {});

        var featureNames = [];
        each$1(featureOpts, function (opt, name) {
            featureNames.push(name);
        });

        (new DataDiffer(this._featureNames || [], featureNames))
            .add(processFeature)
            .update(processFeature)
            .remove(curry(processFeature, null))
            .execute();

        // Keep for diff.
        this._featureNames = featureNames;

        function processFeature(newIndex, oldIndex) {
            var featureName = featureNames[newIndex];
            var oldName = featureNames[oldIndex];
            var featureOpt = featureOpts[featureName];
            var featureModel = new Model(featureOpt, toolboxModel, toolboxModel.ecModel);
            var feature;

            if (featureName && !oldName) { // Create
                if (isUserFeatureName(featureName)) {
                    feature = {
                        model: featureModel,
                        onclick: featureModel.option.onclick,
                        featureName: featureName
                    };
                }
                else {
                    var Feature = get$1(featureName);
                    if (!Feature) {
                        return;
                    }
                    feature = new Feature(featureModel, ecModel, api);
                }
                features[featureName] = feature;
            }
            else {
                feature = features[oldName];
                // If feature does not exsit.
                if (!feature) {
                    return;
                }
                feature.model = featureModel;
                feature.ecModel = ecModel;
                feature.api = api;
            }

            if (!featureName && oldName) {
                feature.dispose && feature.dispose(ecModel, api);
                return;
            }

            if (!featureModel.get('show') || feature.unusable) {
                feature.remove && feature.remove(ecModel, api);
                return;
            }

            createIconPaths(featureModel, feature, featureName);

            featureModel.setIconStatus = function (iconName, status) {
                var option = this.option;
                var iconPaths = this.iconPaths;
                option.iconStatus = option.iconStatus || {};
                option.iconStatus[iconName] = status;
                // FIXME
                iconPaths[iconName] && iconPaths[iconName].trigger(status);
            };

            if (feature.render) {
                feature.render(featureModel, ecModel, api, payload);
            }
        }

        function createIconPaths(featureModel, feature, featureName) {
            var iconStyleModel = featureModel.getModel('iconStyle');
            var iconStyleEmphasisModel = featureModel.getModel('emphasis.iconStyle');

            // If one feature has mutiple icon. they are orginaized as
            // {
            //     icon: {
            //         foo: '',
            //         bar: ''
            //     },
            //     title: {
            //         foo: '',
            //         bar: ''
            //     }
            // }
            var icons = feature.getIcons ? feature.getIcons() : featureModel.get('icon');
            var titles = featureModel.get('title') || {};
            if (typeof icons === 'string') {
                var icon = icons;
                var title = titles;
                icons = {};
                titles = {};
                icons[featureName] = icon;
                titles[featureName] = title;
            }
            var iconPaths = featureModel.iconPaths = {};
            each$1(icons, function (iconStr, iconName) {
                var path = createIcon(
                    iconStr,
                    {},
                    {
                        x: -itemSize / 2,
                        y: -itemSize / 2,
                        width: itemSize,
                        height: itemSize
                    }
                );
                path.setStyle(iconStyleModel.getItemStyle());
                path.hoverStyle = iconStyleEmphasisModel.getItemStyle();

                setHoverStyle(path);

                if (toolboxModel.get('showTitle')) {
                    path.__title = titles[iconName];
                    path.on('mouseover', function () {
                            // Should not reuse above hoverStyle, which might be modified.
                            var hoverStyle = iconStyleEmphasisModel.getItemStyle();
                            path.setStyle({
                                text: titles[iconName],
                                textPosition: hoverStyle.textPosition || 'bottom',
                                textFill: hoverStyle.fill || hoverStyle.stroke || '#000',
                                textAlign: hoverStyle.textAlign || 'center'
                            });
                        })
                        .on('mouseout', function () {
                            path.setStyle({
                                textFill: null
                            });
                        });
                }
                path.trigger(featureModel.get('iconStatus.' + iconName) || 'normal');

                group.add(path);
                path.on('click', bind(
                    feature.onclick, feature, ecModel, api, iconName
                ));

                iconPaths[iconName] = path;
            });
        }

        layout$3(group, toolboxModel, api);
        // Render background after group is layout
        // FIXME
        group.add(makeBackground(group.getBoundingRect(), toolboxModel));

        // Adjust icon title positions to avoid them out of screen
        group.eachChild(function (icon) {
            var titleText = icon.__title;
            var hoverStyle = icon.hoverStyle;
            // May be background element
            if (hoverStyle && titleText) {
                var rect = getBoundingRect(
                    titleText, makeFont(hoverStyle)
                );
                var offsetX = icon.position[0] + group.position[0];
                var offsetY = icon.position[1] + group.position[1] + itemSize;

                var needPutOnTop = false;
                if (offsetY + rect.height > api.getHeight()) {
                    hoverStyle.textPosition = 'top';
                    needPutOnTop = true;
                }
                var topOffset = needPutOnTop ? (-5 - rect.height) : (itemSize + 8);
                if (offsetX + rect.width /  2 > api.getWidth()) {
                    hoverStyle.textPosition = ['100%', topOffset];
                    hoverStyle.textAlign = 'right';
                }
                else if (offsetX - rect.width / 2 < 0) {
                    hoverStyle.textPosition = [0, topOffset];
                    hoverStyle.textAlign = 'left';
                }
            }
        });
    },

    updateView: function (toolboxModel, ecModel, api, payload) {
        each$1(this._features, function (feature) {
            feature.updateView && feature.updateView(feature.model, ecModel, api, payload);
        });
    },

    // updateLayout: function (toolboxModel, ecModel, api, payload) {
    //     zrUtil.each(this._features, function (feature) {
    //         feature.updateLayout && feature.updateLayout(feature.model, ecModel, api, payload);
    //     });
    // },

    remove: function (ecModel, api) {
        each$1(this._features, function (feature) {
            feature.remove && feature.remove(ecModel, api);
        });
        this.group.removeAll();
    },

    dispose: function (ecModel, api) {
        each$1(this._features, function (feature) {
            feature.dispose && feature.dispose(ecModel, api);
        });
    }
});

function isUserFeatureName(featureName) {
    return featureName.indexOf('my') === 0;
}

var saveAsImageLang = lang.toolbox.saveAsImage;

function SaveAsImage(model) {
    this.model = model;
}

SaveAsImage.defaultOption = {
    show: true,
    icon: 'M4.7,22.9L29.3,45.5L54.7,23.4M4.6,43.6L4.6,58L53.8,58L53.8,43.6M29.2,45.1L29.2,0',
    title: saveAsImageLang.title,
    type: 'png',
    // Default use option.backgroundColor
    // backgroundColor: '#fff',
    name: '',
    excludeComponents: ['toolbox'],
    pixelRatio: 1,
    lang: saveAsImageLang.lang.slice()
};

SaveAsImage.prototype.unusable = !env$1.canvasSupported;

var proto$4 = SaveAsImage.prototype;

proto$4.onclick = function (ecModel, api) {
    var model = this.model;
    var title = model.get('name') || ecModel.get('title.0.text') || 'echarts';
    var $a = document.createElement('a');
    var type = model.get('type', true) || 'png';
    $a.download = title + '.' + type;
    $a.target = '_blank';
    var url = api.getConnectedDataURL({
        type: type,
        backgroundColor: model.get('backgroundColor', true)
            || ecModel.get('backgroundColor') || '#fff',
        excludeComponents: model.get('excludeComponents'),
        pixelRatio: model.get('pixelRatio')
    });
    $a.href = url;
    // Chrome and Firefox
    if (typeof MouseEvent === 'function' && !env$1.browser.ie && !env$1.browser.edge) {
        var evt = new MouseEvent('click', {
            view: window,
            bubbles: true,
            cancelable: false
        });
        $a.dispatchEvent(evt);
    }
    // IE
    else {
        if (window.navigator.msSaveOrOpenBlob) {
            var bstr = atob(url.split(',')[1]);
            var n = bstr.length;
            var u8arr = new Uint8Array(n);
            while(n--) {
                u8arr[n] = bstr.charCodeAt(n);
            }
            var blob = new Blob([u8arr]);
            window.navigator.msSaveOrOpenBlob(blob, title + '.' + type);
        }
        else {
            var lang$$1 = model.get('lang');
            var html = '' +
                '<body style="margin:0;">' +
                '<img src="' + url + '" style="max-width:100%;" title="' + ((lang$$1 && lang$$1[0]) || '') + '" />' +
                '</body>';
            var tab = window.open();
            tab.document.write(html);
        }
    }
};

register$1(
    'saveAsImage', SaveAsImage
);

var magicTypeLang = lang.toolbox.magicType;

function MagicType(model) {
    this.model = model;
}

MagicType.defaultOption = {
    show: true,
    type: [],
    // Icon group
    icon: {
        line: 'M4.1,28.9h7.1l9.3-22l7.4,38l9.7-19.7l3,12.8h14.9M4.1,58h51.4',
        bar: 'M6.7,22.9h10V48h-10V22.9zM24.9,13h10v35h-10V13zM43.2,2h10v46h-10V2zM3.1,58h53.7',
        stack: 'M8.2,38.4l-8.4,4.1l30.6,15.3L60,42.5l-8.1-4.1l-21.5,11L8.2,38.4z M51.9,30l-8.1,4.2l-13.4,6.9l-13.9-6.9L8.2,30l-8.4,4.2l8.4,4.2l22.2,11l21.5-11l8.1-4.2L51.9,30z M51.9,21.7l-8.1,4.2L35.7,30l-5.3,2.8L24.9,30l-8.4-4.1l-8.3-4.2l-8.4,4.2L8.2,30l8.3,4.2l13.9,6.9l13.4-6.9l8.1-4.2l8.1-4.1L51.9,21.7zM30.4,2.2L-0.2,17.5l8.4,4.1l8.3,4.2l8.4,4.2l5.5,2.7l5.3-2.7l8.1-4.2l8.1-4.2l8.1-4.1L30.4,2.2z', // jshint ignore:line
        tiled: 'M2.3,2.2h22.8V25H2.3V2.2z M35,2.2h22.8V25H35V2.2zM2.3,35h22.8v22.8H2.3V35z M35,35h22.8v22.8H35V35z'
    },
    // `line`, `bar`, `stack`, `tiled`
    title: clone(magicTypeLang.title),
    option: {},
    seriesIndex: {}
};

var proto$5 = MagicType.prototype;

proto$5.getIcons = function () {
    var model = this.model;
    var availableIcons = model.get('icon');
    var icons = {};
    each$1(model.get('type'), function (type) {
        if (availableIcons[type]) {
            icons[type] = availableIcons[type];
        }
    });
    return icons;
};

var seriesOptGenreator = {
    'line': function (seriesType, seriesId, seriesModel, model) {
        if (seriesType === 'bar') {
            return merge({
                id: seriesId,
                type: 'line',
                // Preserve data related option
                data: seriesModel.get('data'),
                stack: seriesModel.get('stack'),
                markPoint: seriesModel.get('markPoint'),
                markLine: seriesModel.get('markLine')
            }, model.get('option.line') || {}, true);
        }
    },
    'bar': function (seriesType, seriesId, seriesModel, model) {
        if (seriesType === 'line') {
            return merge({
                id: seriesId,
                type: 'bar',
                // Preserve data related option
                data: seriesModel.get('data'),
                stack: seriesModel.get('stack'),
                markPoint: seriesModel.get('markPoint'),
                markLine: seriesModel.get('markLine')
            }, model.get('option.bar') || {}, true);
        }
    },
    'stack': function (seriesType, seriesId, seriesModel, model) {
        if (seriesType === 'line' || seriesType === 'bar') {
            return merge({
                id: seriesId,
                stack: '__ec_magicType_stack__'
            }, model.get('option.stack') || {}, true);
        }
    },
    'tiled': function (seriesType, seriesId, seriesModel, model) {
        if (seriesType === 'line' || seriesType === 'bar') {
            return merge({
                id: seriesId,
                stack: ''
            }, model.get('option.tiled') || {}, true);
        }
    }
};

var radioTypes = [
    ['line', 'bar'],
    ['stack', 'tiled']
];

proto$5.onclick = function (ecModel, api, type) {
    var model = this.model;
    var seriesIndex = model.get('seriesIndex.' + type);
    // Not supported magicType
    if (!seriesOptGenreator[type]) {
        return;
    }
    var newOption = {
        series: []
    };
    var generateNewSeriesTypes = function (seriesModel) {
        var seriesType = seriesModel.subType;
        var seriesId = seriesModel.id;
        var newSeriesOpt = seriesOptGenreator[type](
            seriesType, seriesId, seriesModel, model
        );
        if (newSeriesOpt) {
            // PENDING If merge original option?
            defaults(newSeriesOpt, seriesModel.option);
            newOption.series.push(newSeriesOpt);
        }
        // Modify boundaryGap
        var coordSys = seriesModel.coordinateSystem;
        if (coordSys && coordSys.type === 'cartesian2d' && (type === 'line' || type === 'bar')) {
            var categoryAxis = coordSys.getAxesByScale('ordinal')[0];
            if (categoryAxis) {
                var axisDim = categoryAxis.dim;
                var axisType = axisDim + 'Axis';
                var axisModel = ecModel.queryComponents({
                    mainType: axisType,
                    index: seriesModel.get(name + 'Index'),
                    id: seriesModel.get(name + 'Id')
                })[0];
                var axisIndex = axisModel.componentIndex;

                newOption[axisType] = newOption[axisType] || [];
                for (var i = 0; i <= axisIndex; i++) {
                    newOption[axisType][axisIndex] = newOption[axisType][axisIndex] || {};
                }
                newOption[axisType][axisIndex].boundaryGap = type === 'bar' ? true : false;
            }
        }
    };

    each$1(radioTypes, function (radio) {
        if (indexOf(radio, type) >= 0) {
            each$1(radio, function (item) {
                model.setIconStatus(item, 'normal');
            });
        }
    });

    model.setIconStatus(type, 'emphasis');

    ecModel.eachComponent(
        {
            mainType: 'series',
            query: seriesIndex == null ? null : {
                seriesIndex: seriesIndex
            }
        }, generateNewSeriesTypes
    );
    api.dispatchAction({
        type: 'changeMagicType',
        currentType: type,
        newOption: newOption
    });
};

registerAction({
    type: 'changeMagicType',
    event: 'magicTypeChanged',
    update: 'prepareAndUpdate'
}, function (payload, ecModel) {
    ecModel.mergeOption(payload.newOption);
});

register$1('magicType', MagicType);

var dataViewLang = lang.toolbox.dataView;

var BLOCK_SPLITER = new Array(60).join('-');
var ITEM_SPLITER = '\t';
/**
 * Group series into two types
 *  1. on category axis, like line, bar
 *  2. others, like scatter, pie
 * @param {module:echarts/model/Global} ecModel
 * @return {Object}
 * @inner
 */
function groupSeries(ecModel) {
    var seriesGroupByCategoryAxis = {};
    var otherSeries = [];
    var meta = [];
    ecModel.eachRawSeries(function (seriesModel) {
        var coordSys = seriesModel.coordinateSystem;

        if (coordSys && (coordSys.type === 'cartesian2d' || coordSys.type === 'polar')) {
            var baseAxis = coordSys.getBaseAxis();
            if (baseAxis.type === 'category') {
                var key = baseAxis.dim + '_' + baseAxis.index;
                if (!seriesGroupByCategoryAxis[key]) {
                    seriesGroupByCategoryAxis[key] = {
                        categoryAxis: baseAxis,
                        valueAxis: coordSys.getOtherAxis(baseAxis),
                        series: []
                    };
                    meta.push({
                        axisDim: baseAxis.dim,
                        axisIndex: baseAxis.index
                    });
                }
                seriesGroupByCategoryAxis[key].series.push(seriesModel);
            }
            else {
                otherSeries.push(seriesModel);
            }
        }
        else {
            otherSeries.push(seriesModel);
        }
    });

    return {
        seriesGroupByCategoryAxis: seriesGroupByCategoryAxis,
        other: otherSeries,
        meta: meta
    };
}

/**
 * Assemble content of series on cateogory axis
 * @param {Array.<module:echarts/model/Series>} series
 * @return {string}
 * @inner
 */
function assembleSeriesWithCategoryAxis(series) {
    var tables = [];
    each$1(series, function (group, key) {
        var categoryAxis = group.categoryAxis;
        var valueAxis = group.valueAxis;
        var valueAxisDim = valueAxis.dim;

        var headers = [' '].concat(map(group.series, function (series) {
            return series.name;
        }));
        var columns = [categoryAxis.model.getCategories()];
        each$1(group.series, function (series) {
            columns.push(series.getRawData().mapArray(valueAxisDim, function (val) {
                return val;
            }));
        });
        // Assemble table content
        var lines = [headers.join(ITEM_SPLITER)];
        for (var i = 0; i < columns[0].length; i++) {
            var items = [];
            for (var j = 0; j < columns.length; j++) {
                items.push(columns[j][i]);
            }
            lines.push(items.join(ITEM_SPLITER));
        }
        tables.push(lines.join('\n'));
    });
    return tables.join('\n\n' +  BLOCK_SPLITER + '\n\n');
}

/**
 * Assemble content of other series
 * @param {Array.<module:echarts/model/Series>} series
 * @return {string}
 * @inner
 */
function assembleOtherSeries(series) {
    return map(series, function (series) {
        var data = series.getRawData();
        var lines = [series.name];
        var vals = [];
        data.each(data.dimensions, function () {
            var argLen = arguments.length;
            var dataIndex = arguments[argLen - 1];
            var name = data.getName(dataIndex);
            for (var i = 0; i < argLen - 1; i++) {
                vals[i] = arguments[i];
            }
            lines.push((name ? (name + ITEM_SPLITER) : '') + vals.join(ITEM_SPLITER));
        });
        return lines.join('\n');
    }).join('\n\n' + BLOCK_SPLITER + '\n\n');
}

/**
 * @param {module:echarts/model/Global}
 * @return {Object}
 * @inner
 */
function getContentFromModel(ecModel) {

    var result = groupSeries(ecModel);

    return {
        value: filter([
                assembleSeriesWithCategoryAxis(result.seriesGroupByCategoryAxis),
                assembleOtherSeries(result.other)
            ], function (str) {
                return str.replace(/[\n\t\s]/g, '');
            }).join('\n\n' + BLOCK_SPLITER + '\n\n'),

        meta: result.meta
    };
}


function trim$1(str) {
    return str.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
}
/**
 * If a block is tsv format
 */
function isTSVFormat(block) {
    // Simple method to find out if a block is tsv format
    var firstLine = block.slice(0, block.indexOf('\n'));
    if (firstLine.indexOf(ITEM_SPLITER) >= 0) {
        return true;
    }
}

var itemSplitRegex = new RegExp('[' + ITEM_SPLITER + ']+', 'g');
/**
 * @param {string} tsv
 * @return {Object}
 */
function parseTSVContents(tsv) {
    var tsvLines = tsv.split(/\n+/g);
    var headers = trim$1(tsvLines.shift()).split(itemSplitRegex);

    var categories = [];
    var series = map(headers, function (header) {
        return {
            name: header,
            data: []
        };
    });
    for (var i = 0; i < tsvLines.length; i++) {
        var items = trim$1(tsvLines[i]).split(itemSplitRegex);
        categories.push(items.shift());
        for (var j = 0; j < items.length; j++) {
            series[j] && (series[j].data[i] = items[j]);
        }
    }
    return {
        series: series,
        categories: categories
    };
}

/**
 * @param {string} str
 * @return {Array.<Object>}
 * @inner
 */
function parseListContents(str) {
    var lines = str.split(/\n+/g);
    var seriesName = trim$1(lines.shift());

    var data = [];
    for (var i = 0; i < lines.length; i++) {
        var items = trim$1(lines[i]).split(itemSplitRegex);
        var name = '';
        var value;
        var hasName = false;
        if (isNaN(items[0])) { // First item is name
            hasName = true;
            name = items[0];
            items = items.slice(1);
            data[i] = {
                name: name,
                value: []
            };
            value = data[i].value;
        }
        else {
            value = data[i] = [];
        }
        for (var j = 0; j < items.length; j++) {
            value.push(+items[j]);
        }
        if (value.length === 1) {
            hasName ? (data[i].value = value[0]) : (data[i] = value[0]);
        }
    }

    return {
        name: seriesName,
        data: data
    };
}

/**
 * @param {string} str
 * @param {Array.<Object>} blockMetaList
 * @return {Object}
 * @inner
 */
function parseContents(str, blockMetaList) {
    var blocks = str.split(new RegExp('\n*' + BLOCK_SPLITER + '\n*', 'g'));
    var newOption = {
        series: []
    };
    each$1(blocks, function (block, idx) {
        if (isTSVFormat(block)) {
            var result = parseTSVContents(block);
            var blockMeta = blockMetaList[idx];
            var axisKey = blockMeta.axisDim + 'Axis';

            if (blockMeta) {
                newOption[axisKey] = newOption[axisKey] || [];
                newOption[axisKey][blockMeta.axisIndex] = {
                    data: result.categories
                };
                newOption.series = newOption.series.concat(result.series);
            }
        }
        else {
            var result = parseListContents(block);
            newOption.series.push(result);
        }
    });
    return newOption;
}

/**
 * @alias {module:echarts/component/toolbox/feature/DataView}
 * @constructor
 * @param {module:echarts/model/Model} model
 */
function DataView(model) {

    this._dom = null;

    this.model = model;
}

DataView.defaultOption = {
    show: true,
    readOnly: false,
    optionToContent: null,
    contentToOption: null,

    icon: 'M17.5,17.3H33 M17.5,17.3H33 M45.4,29.5h-28 M11.5,2v56H51V14.8L38.4,2H11.5z M38.4,2.2v12.7H51 M45.4,41.7h-28',
    title: clone(dataViewLang.title),
    lang: clone(dataViewLang.lang),
    backgroundColor: '#fff',
    textColor: '#000',
    textareaColor: '#fff',
    textareaBorderColor: '#333',
    buttonColor: '#c23531',
    buttonTextColor: '#fff'
};

DataView.prototype.onclick = function (ecModel, api) {
    var container = api.getDom();
    var model = this.model;
    if (this._dom) {
        container.removeChild(this._dom);
    }
    var root = document.createElement('div');
    root.style.cssText = 'position:absolute;left:5px;top:5px;bottom:5px;right:5px;';
    root.style.backgroundColor = model.get('backgroundColor') || '#fff';

    // Create elements
    var header = document.createElement('h4');
    var lang$$1 = model.get('lang') || [];
    header.innerHTML = lang$$1[0] || model.get('title');
    header.style.cssText = 'margin: 10px 20px;';
    header.style.color = model.get('textColor');

    var viewMain = document.createElement('div');
    var textarea = document.createElement('textarea');
    viewMain.style.cssText = 'display:block;width:100%;overflow:auto;';

    var optionToContent = model.get('optionToContent');
    var contentToOption = model.get('contentToOption');
    var result = getContentFromModel(ecModel);
    if (typeof optionToContent === 'function') {
        var htmlOrDom = optionToContent(api.getOption());
        if (typeof htmlOrDom === 'string') {
            viewMain.innerHTML = htmlOrDom;
        }
        else if (isDom(htmlOrDom)) {
            viewMain.appendChild(htmlOrDom);
        }
    }
    else {
        // Use default textarea
        viewMain.appendChild(textarea);
        textarea.readOnly = model.get('readOnly');
        textarea.style.cssText = 'width:100%;height:100%;font-family:monospace;font-size:14px;line-height:1.6rem;';
        textarea.style.color = model.get('textColor');
        textarea.style.borderColor = model.get('textareaBorderColor');
        textarea.style.backgroundColor = model.get('textareaColor');
        textarea.value = result.value;
    }

    var blockMetaList = result.meta;

    var buttonContainer = document.createElement('div');
    buttonContainer.style.cssText = 'position:absolute;bottom:0;left:0;right:0;';

    var buttonStyle = 'float:right;margin-right:20px;border:none;'
        + 'cursor:pointer;padding:2px 5px;font-size:12px;border-radius:3px';
    var closeButton = document.createElement('div');
    var refreshButton = document.createElement('div');

    buttonStyle += ';background-color:' + model.get('buttonColor');
    buttonStyle += ';color:' + model.get('buttonTextColor');

    var self = this;

    function close() {
        container.removeChild(root);
        self._dom = null;
    }
    addEventListener(closeButton, 'click', close);

    addEventListener(refreshButton, 'click', function () {
        var newOption;
        try {
            if (typeof contentToOption === 'function') {
                newOption = contentToOption(viewMain, api.getOption());
            }
            else {
                newOption = parseContents(textarea.value, blockMetaList);
            }
        }
        catch (e) {
            close();
            throw new Error('Data view format error ' + e);
        }
        if (newOption) {
            api.dispatchAction({
                type: 'changeDataView',
                newOption: newOption
            });
        }

        close();
    });

    closeButton.innerHTML = lang$$1[1];
    refreshButton.innerHTML = lang$$1[2];
    refreshButton.style.cssText = buttonStyle;
    closeButton.style.cssText = buttonStyle;

    !model.get('readOnly') && buttonContainer.appendChild(refreshButton);
    buttonContainer.appendChild(closeButton);

    // http://stackoverflow.com/questions/6637341/use-tab-to-indent-in-textarea
    addEventListener(textarea, 'keydown', function (e) {
        if ((e.keyCode || e.which) === 9) {
            // get caret position/selection
            var val = this.value;
            var start = this.selectionStart;
            var end = this.selectionEnd;

            // set textarea value to: text before caret + tab + text after caret
            this.value = val.substring(0, start) + ITEM_SPLITER + val.substring(end);

            // put caret at right position again
            this.selectionStart = this.selectionEnd = start + 1;

            // prevent the focus lose
            stop(e);
        }
    });

    root.appendChild(header);
    root.appendChild(viewMain);
    root.appendChild(buttonContainer);

    viewMain.style.height = (container.clientHeight - 80) + 'px';

    container.appendChild(root);
    this._dom = root;
};

DataView.prototype.remove = function (ecModel, api) {
    this._dom && api.getDom().removeChild(this._dom);
};

DataView.prototype.dispose = function (ecModel, api) {
    this.remove(ecModel, api);
};

/**
 * @inner
 */
function tryMergeDataOption(newData, originalData) {
    return map(newData, function (newVal, idx) {
        var original = originalData && originalData[idx];
        if (isObject$1(original) && !isArray(original)) {
            if (isObject$1(newVal) && !isArray(newVal)) {
                newVal = newVal.value;
            }
            // Original data has option
            return defaults({
                value: newVal
            }, original);
        }
        else {
            return newVal;
        }
    });
}

register$1('dataView', DataView);

registerAction({
    type: 'changeDataView',
    event: 'dataViewChanged',
    update: 'prepareAndUpdate'
}, function (payload, ecModel) {
    var newSeriesOptList = [];
    each$1(payload.newOption.series, function (seriesOpt) {
        var seriesModel = ecModel.getSeriesByName(seriesOpt.name)[0];
        if (!seriesModel) {
            // New created series
            // Geuss the series type
            newSeriesOptList.push(extend({
                // Default is scatter
                type: 'scatter'
            }, seriesOpt));
        }
        else {
            var originalData = seriesModel.get('data');
            newSeriesOptList.push({
                name: seriesOpt.name,
                data: tryMergeDataOption(seriesOpt.data, originalData)
            });
        }
    });

    ecModel.mergeOption(defaults({
        series: newSeriesOptList
    }, payload.newOption));
});

var each$30 = each$1;

var ATTR$2 = '\0_ec_hist_store';

/**
 * @param {module:echarts/model/Global} ecModel
 * @param {Object} newSnapshot {dataZoomId, batch: [payloadInfo, ...]}
 */
function push(ecModel, newSnapshot) {
    var store = giveStore$1(ecModel);

    // If previous dataZoom can not be found,
    // complete an range with current range.
    each$30(newSnapshot, function (batchItem, dataZoomId) {
        var i = store.length - 1;
        for (; i >= 0; i--) {
            var snapshot = store[i];
            if (snapshot[dataZoomId]) {
                break;
            }
        }
        if (i < 0) {
            // No origin range set, create one by current range.
            var dataZoomModel = ecModel.queryComponents(
                {mainType: 'dataZoom', subType: 'select', id: dataZoomId}
            )[0];
            if (dataZoomModel) {
                var percentRange = dataZoomModel.getPercentRange();
                store[0][dataZoomId] = {
                    dataZoomId: dataZoomId,
                    start: percentRange[0],
                    end: percentRange[1]
                };
            }
        }
    });

    store.push(newSnapshot);
}

/**
 * @param {module:echarts/model/Global} ecModel
 * @return {Object} snapshot
 */
function pop(ecModel) {
    var store = giveStore$1(ecModel);
    var head = store[store.length - 1];
    store.length > 1 && store.pop();

    // Find top for all dataZoom.
    var snapshot = {};
    each$30(head, function (batchItem, dataZoomId) {
        for (var i = store.length - 1; i >= 0; i--) {
            var batchItem = store[i][dataZoomId];
            if (batchItem) {
                snapshot[dataZoomId] = batchItem;
                break;
            }
        }
    });

    return snapshot;
}

/**
 * @param {module:echarts/model/Global} ecModel
 */
function clear$1(ecModel) {
    ecModel[ATTR$2] = null;
}

/**
 * @param {module:echarts/model/Global} ecModel
 * @return {number} records. always >= 1.
 */
function count(ecModel) {
    return giveStore$1(ecModel).length;
}

/**
 * [{key: dataZoomId, value: {dataZoomId, range}}, ...]
 * History length of each dataZoom may be different.
 * this._history[0] is used to store origin range.
 * @type {Array.<Object>}
 */
function giveStore$1(ecModel) {
    var store = ecModel[ATTR$2];
    if (!store) {
        store = ecModel[ATTR$2] = [{}];
    }
    return store;
}

DataZoomModel.extend({
    type: 'dataZoom.select'
});

DataZoomView.extend({
    type: 'dataZoom.select'
});

/**
 * DataZoom component entry
 */

// Use dataZoomSelect
var dataZoomLang = lang.toolbox.dataZoom;
var each$29 = each$1;

// Spectial component id start with \0ec\0, see echarts/model/Global.js~hasInnerId
var DATA_ZOOM_ID_BASE = '\0_ec_\0toolbox-dataZoom_';

function DataZoom(model, ecModel, api) {

    /**
     * @private
     * @type {module:echarts/component/helper/BrushController}
     */
    (this._brushController = new BrushController(api.getZr()))
        .on('brush', bind(this._onBrush, this))
        .mount();

    /**
     * @private
     * @type {boolean}
     */
    this._isZoomActive;
}

DataZoom.defaultOption = {
    show: true,
    // Icon group
    icon: {
        zoom: 'M0,13.5h26.9 M13.5,26.9V0 M32.1,13.5H58V58H13.5 V32.1',
        back: 'M22,1.4L9.9,13.5l12.3,12.3 M10.3,13.5H54.9v44.6 H10.3v-26'
    },
    // `zoom`, `back`
    title: clone(dataZoomLang.title)
};

var proto$6 = DataZoom.prototype;

proto$6.render = function (featureModel, ecModel, api, payload) {
    this.model = featureModel;
    this.ecModel = ecModel;
    this.api = api;

    updateZoomBtnStatus(featureModel, ecModel, this, payload, api);
    updateBackBtnStatus(featureModel, ecModel);
};

proto$6.onclick = function (ecModel, api, type) {
    handlers$1[type].call(this);
};

proto$6.remove = function (ecModel, api) {
    this._brushController.unmount();
};

proto$6.dispose = function (ecModel, api) {
    this._brushController.dispose();
};

/**
 * @private
 */
var handlers$1 = {

    zoom: function () {
        var nextActive = !this._isZoomActive;

        this.api.dispatchAction({
            type: 'takeGlobalCursor',
            key: 'dataZoomSelect',
            dataZoomSelectActive: nextActive
        });
    },

    back: function () {
        this._dispatchZoomAction(pop(this.ecModel));
    }
};

/**
 * @private
 */
proto$6._onBrush = function (areas, opt) {
    if (!opt.isEnd || !areas.length) {
        return;
    }
    var snapshot = {};
    var ecModel = this.ecModel;

    this._brushController.updateCovers([]); // remove cover

    var brushTargetManager = new BrushTargetManager(
        retrieveAxisSetting(this.model.option), ecModel, {include: ['grid']}
    );
    brushTargetManager.matchOutputRanges(areas, ecModel, function (area, coordRange, coordSys) {
        if (coordSys.type !== 'cartesian2d') {
            return;
        }

        var brushType = area.brushType;
        if (brushType === 'rect') {
            setBatch('x', coordSys, coordRange[0]);
            setBatch('y', coordSys, coordRange[1]);
        }
        else {
            setBatch(({lineX: 'x', lineY: 'y'})[brushType], coordSys, coordRange);
        }
    });

    push(ecModel, snapshot);

    this._dispatchZoomAction(snapshot);

    function setBatch(dimName, coordSys, minMax) {
        var axis = coordSys.getAxis(dimName);
        var axisModel = axis.model;
        var dataZoomModel = findDataZoom(dimName, axisModel, ecModel);

        // Restrict range.
        var minMaxSpan = dataZoomModel.findRepresentativeAxisProxy(axisModel).getMinMaxSpan();
        if (minMaxSpan.minValueSpan != null || minMaxSpan.maxValueSpan != null) {
            minMax = sliderMove(
                0, minMax.slice(), axis.scale.getExtent(), 0,
                minMaxSpan.minValueSpan, minMaxSpan.maxValueSpan
            );
        }

        dataZoomModel && (snapshot[dataZoomModel.id] = {
            dataZoomId: dataZoomModel.id,
            startValue: minMax[0],
            endValue: minMax[1]
        });
    }

    function findDataZoom(dimName, axisModel, ecModel) {
        var found;
        ecModel.eachComponent({mainType: 'dataZoom', subType: 'select'}, function (dzModel) {
            var has = dzModel.getAxisModel(dimName, axisModel.componentIndex);
            has && (found = dzModel);
        });
        return found;
    }
};

/**
 * @private
 */
proto$6._dispatchZoomAction = function (snapshot) {
    var batch = [];

    // Convert from hash map to array.
    each$29(snapshot, function (batchItem, dataZoomId) {
        batch.push(clone(batchItem));
    });

    batch.length && this.api.dispatchAction({
        type: 'dataZoom',
        from: this.uid,
        batch: batch
    });
};

function retrieveAxisSetting(option) {
    var setting = {};
    // Compatible with previous setting: null => all axis, false => no axis.
    each$1(['xAxisIndex', 'yAxisIndex'], function (name) {
        setting[name] = option[name];
        setting[name] == null && (setting[name] = 'all');
        (setting[name] === false || setting[name] === 'none') && (setting[name] = []);
    });
    return setting;
}

function updateBackBtnStatus(featureModel, ecModel) {
    featureModel.setIconStatus(
        'back',
        count(ecModel) > 1 ? 'emphasis' : 'normal'
    );
}

function updateZoomBtnStatus(featureModel, ecModel, view, payload, api) {
    var zoomActive = view._isZoomActive;

    if (payload && payload.type === 'takeGlobalCursor') {
        zoomActive = payload.key === 'dataZoomSelect'
            ? payload.dataZoomSelectActive : false;
    }

    view._isZoomActive = zoomActive;

    featureModel.setIconStatus('zoom', zoomActive ? 'emphasis' : 'normal');

    var brushTargetManager = new BrushTargetManager(
        retrieveAxisSetting(featureModel.option), ecModel, {include: ['grid']}
    );

    view._brushController
        .setPanels(brushTargetManager.makePanelOpts(api, function (targetInfo) {
            return (targetInfo.xAxisDeclared && !targetInfo.yAxisDeclared)
                ? 'lineX'
                : (!targetInfo.xAxisDeclared && targetInfo.yAxisDeclared)
                ? 'lineY'
                : 'rect';
        }))
        .enableBrush(
            zoomActive
            ? {
                brushType: 'auto',
                brushStyle: {
                    // FIXME user customized?
                    lineWidth: 0,
                    fill: 'rgba(0,0,0,0.2)'
                }
            }
            : false
        );
}


register$1('dataZoom', DataZoom);


// Create special dataZoom option for select
registerPreprocessor(function (option) {
    if (!option) {
        return;
    }

    var dataZoomOpts = option.dataZoom || (option.dataZoom = []);
    if (!isArray(dataZoomOpts)) {
        option.dataZoom = dataZoomOpts = [dataZoomOpts];
    }

    var toolboxOpt = option.toolbox;
    if (toolboxOpt) {
        // Assume there is only one toolbox
        if (isArray(toolboxOpt)) {
            toolboxOpt = toolboxOpt[0];
        }

        if (toolboxOpt && toolboxOpt.feature) {
            var dataZoomOpt = toolboxOpt.feature.dataZoom;
            addForAxis('xAxis', dataZoomOpt);
            addForAxis('yAxis', dataZoomOpt);
        }
    }

    function addForAxis(axisName, dataZoomOpt) {
        if (!dataZoomOpt) {
            return;
        }

        // Try not to modify model, because it is not merged yet.
        var axisIndicesName = axisName + 'Index';
        var givenAxisIndices = dataZoomOpt[axisIndicesName];
        if (givenAxisIndices != null
            && givenAxisIndices != 'all'
            && !isArray(givenAxisIndices)
        ) {
            givenAxisIndices = (givenAxisIndices === false || givenAxisIndices === 'none') ? [] : [givenAxisIndices];
        }

        forEachComponent(axisName, function (axisOpt, axisIndex) {
            if (givenAxisIndices != null
                && givenAxisIndices != 'all'
                && indexOf(givenAxisIndices, axisIndex) === -1
            ) {
                return;
            }
            var newOpt = {
                type: 'select',
                $fromToolbox: true,
                // Id for merge mapping.
                id: DATA_ZOOM_ID_BASE + axisName + axisIndex
            };
            // FIXME
            // Only support one axis now.
            newOpt[axisIndicesName] = axisIndex;
            dataZoomOpts.push(newOpt);
        });
    }

    function forEachComponent(mainType, cb) {
        var opts = option[mainType];
        if (!isArray(opts)) {
            opts = opts ? [opts] : [];
        }
        each$29(opts, cb);
    }
});

var restoreLang = lang.toolbox.restore;

function Restore(model) {
    this.model = model;
}

Restore.defaultOption = {
    show: true,
    icon: 'M3.8,33.4 M47,18.9h9.8V8.7 M56.3,20.1 C52.1,9,40.5,0.6,26.8,2.1C12.6,3.7,1.6,16.2,2.1,30.6 M13,41.1H3.1v10.2 M3.7,39.9c4.2,11.1,15.8,19.5,29.5,18 c14.2-1.6,25.2-14.1,24.7-28.5',
    title: restoreLang.title
};

var proto$7 = Restore.prototype;

proto$7.onclick = function (ecModel, api, type) {
    clear$1(ecModel);

    api.dispatchAction({
        type: 'restore',
        from: this.uid
    });
};

register$1('restore', Restore);

registerAction(
    {type: 'restore', event: 'restore', update: 'prepareAndUpdate'},
    function (payload, ecModel) {
        ecModel.resetOption('recreate');
    }
);

var urn = 'urn:schemas-microsoft-com:vml';
var win = typeof window === 'undefined' ? null : window;

var vmlInited = false;

var doc = win && win.document;

function createNode(tagName) {
    return doCreateNode(tagName);
}

// Avoid assign to an exported variable, for transforming to cjs.
var doCreateNode;

if (doc && !env$1.canvasSupported) {
    try {
        !doc.namespaces.zrvml && doc.namespaces.add('zrvml', urn);
        doCreateNode = function (tagName) {
            return doc.createElement('<zrvml:' + tagName + ' class="zrvml">');
        };
    }
    catch (e) {
        doCreateNode = function (tagName) {
            return doc.createElement('<' + tagName + ' xmlns="' + urn + '" class="zrvml">');
        };
    }
}

// From raphael
function initVML() {
    if (vmlInited || !doc) {
        return;
    }
    vmlInited = true;

    var styleSheets = doc.styleSheets;
    if (styleSheets.length < 31) {
        doc.createStyleSheet().addRule('.zrvml', 'behavior:url(#default#VML)');
    }
    else {
        // http://msdn.microsoft.com/en-us/library/ms531194%28VS.85%29.aspx
        styleSheets[0].addRule('.zrvml', 'behavior:url(#default#VML)');
    }
}

// http://www.w3.org/TR/NOTE-VML
// TODO Use proxy like svg instead of overwrite brush methods

var CMD$3 = PathProxy.CMD;
var round$3 = Math.round;
var sqrt = Math.sqrt;
var abs$1 = Math.abs;
var cos = Math.cos;
var sin = Math.sin;
var mathMax$8 = Math.max;

if (!env$1.canvasSupported) {

    var comma = ',';
    var imageTransformPrefix = 'progid:DXImageTransform.Microsoft';

    var Z = 21600;
    var Z2 = Z / 2;

    var ZLEVEL_BASE = 100000;
    var Z_BASE$1 = 1000;

    var initRootElStyle = function (el) {
        el.style.cssText = 'position:absolute;left:0;top:0;width:1px;height:1px;';
        el.coordsize = Z + ','  + Z;
        el.coordorigin = '0,0';
    };

    var encodeHtmlAttribute = function (s) {
        return String(s).replace(/&/g, '&').replace(/"/g, '"');
    };

    var rgb2Str = function (r, g, b) {
        return 'rgb(' + [r, g, b].join(',') + ')';
    };

    var append = function (parent, child) {
        if (child && parent && child.parentNode !== parent) {
            parent.appendChild(child);
        }
    };

    var remove = function (parent, child) {
        if (child && parent && child.parentNode === parent) {
            parent.removeChild(child);
        }
    };

    var getZIndex = function (zlevel, z, z2) {
        // z 的取值范围为 [0, 1000]
        return (parseFloat(zlevel) || 0) * ZLEVEL_BASE + (parseFloat(z) || 0) * Z_BASE$1 + z2;
    };

    var parsePercent$3 = function (value, maxValue) {
        if (typeof value === 'string') {
            if (value.lastIndexOf('%') >= 0) {
                return parseFloat(value) / 100 * maxValue;
            }
            return parseFloat(value);
        }
        return value;
    };

    /***************************************************
     * PATH
     **************************************************/

    var setColorAndOpacity = function (el, color, opacity) {
        var colorArr = parse(color);
        opacity = +opacity;
        if (isNaN(opacity)) {
            opacity = 1;
        }
        if (colorArr) {
            el.color = rgb2Str(colorArr[0], colorArr[1], colorArr[2]);
            el.opacity = opacity * colorArr[3];
        }
    };

    var getColorAndAlpha = function (color) {
        var colorArr = parse(color);
        return [
            rgb2Str(colorArr[0], colorArr[1], colorArr[2]),
            colorArr[3]
        ];
    };

    var updateFillNode = function (el, style, zrEl) {
        // TODO pattern
        var fill = style.fill;
        if (fill != null) {
            // Modified from excanvas
            if (fill instanceof Gradient) {
                var gradientType;
                var angle = 0;
                var focus = [0, 0];
                // additional offset
                var shift = 0;
                // scale factor for offset
                var expansion = 1;
                var rect = zrEl.getBoundingRect();
                var rectWidth = rect.width;
                var rectHeight = rect.height;
                if (fill.type === 'linear') {
                    gradientType = 'gradient';
                    var transform = zrEl.transform;
                    var p0 = [fill.x * rectWidth, fill.y * rectHeight];
                    var p1 = [fill.x2 * rectWidth, fill.y2 * rectHeight];
                    if (transform) {
                        applyTransform(p0, p0, transform);
                        applyTransform(p1, p1, transform);
                    }
                    var dx = p1[0] - p0[0];
                    var dy = p1[1] - p0[1];
                    angle = Math.atan2(dx, dy) * 180 / Math.PI;
                    // The angle should be a non-negative number.
                    if (angle < 0) {
                        angle += 360;
                    }

                    // Very small angles produce an unexpected result because they are
                    // converted to a scientific notation string.
                    if (angle < 1e-6) {
                        angle = 0;
                    }
                }
                else {
                    gradientType = 'gradientradial';
                    var p0 = [fill.x * rectWidth, fill.y * rectHeight];
                    var transform = zrEl.transform;
                    var scale$$1 = zrEl.scale;
                    var width = rectWidth;
                    var height = rectHeight;
                    focus = [
                        // Percent in bounding rect
                        (p0[0] - rect.x) / width,
                        (p0[1] - rect.y) / height
                    ];
                    if (transform) {
                        applyTransform(p0, p0, transform);
                    }

                    width /= scale$$1[0] * Z;
                    height /= scale$$1[1] * Z;
                    var dimension = mathMax$8(width, height);
                    shift = 2 * 0 / dimension;
                    expansion = 2 * fill.r / dimension - shift;
                }

                // We need to sort the color stops in ascending order by offset,
                // otherwise IE won't interpret it correctly.
                var stops = fill.colorStops.slice();
                stops.sort(function(cs1, cs2) {
                    return cs1.offset - cs2.offset;
                });

                var length$$1 = stops.length;
                // Color and alpha list of first and last stop
                var colorAndAlphaList = [];
                var colors = [];
                for (var i = 0; i < length$$1; i++) {
                    var stop = stops[i];
                    var colorAndAlpha = getColorAndAlpha(stop.color);
                    colors.push(stop.offset * expansion + shift + ' ' + colorAndAlpha[0]);
                    if (i === 0 || i === length$$1 - 1) {
                        colorAndAlphaList.push(colorAndAlpha);
                    }
                }

                if (length$$1 >= 2) {
                    var color1 = colorAndAlphaList[0][0];
                    var color2 = colorAndAlphaList[1][0];
                    var opacity1 = colorAndAlphaList[0][1] * style.opacity;
                    var opacity2 = colorAndAlphaList[1][1] * style.opacity;

                    el.type = gradientType;
                    el.method = 'none';
                    el.focus = '100%';
                    el.angle = angle;
                    el.color = color1;
                    el.color2 = color2;
                    el.colors = colors.join(',');
                    // When colors attribute is used, the meanings of opacity and o:opacity2
                    // are reversed.
                    el.opacity = opacity2;
                    // FIXME g_o_:opacity ?
                    el.opacity2 = opacity1;
                }
                if (gradientType === 'radial') {
                    el.focusposition = focus.join(',');
                }
            }
            else {
                // FIXME Change from Gradient fill to color fill
                setColorAndOpacity(el, fill, style.opacity);
            }
        }
    };

    var updateStrokeNode = function (el, style) {
        // if (style.lineJoin != null) {
        //     el.joinstyle = style.lineJoin;
        // }
        // if (style.miterLimit != null) {
        //     el.miterlimit = style.miterLimit * Z;
        // }
        // if (style.lineCap != null) {
        //     el.endcap = style.lineCap;
        // }
        if (style.lineDash != null) {
            el.dashstyle = style.lineDash.join(' ');
        }
        if (style.stroke != null && !(style.stroke instanceof Gradient)) {
            setColorAndOpacity(el, style.stroke, style.opacity);
        }
    };

    var updateFillAndStroke = function (vmlEl, type, style, zrEl) {
        var isFill = type == 'fill';
        var el = vmlEl.getElementsByTagName(type)[0];
        // Stroke must have lineWidth
        if (style[type] != null && style[type] !== 'none' && (isFill || (!isFill && style.lineWidth))) {
            vmlEl[isFill ? 'filled' : 'stroked'] = 'true';
            // FIXME Remove before updating, or set `colors` will throw error
            if (style[type] instanceof Gradient) {
                remove(vmlEl, el);
            }
            if (!el) {
                el = createNode(type);
            }

            isFill ? updateFillNode(el, style, zrEl) : updateStrokeNode(el, style);
            append(vmlEl, el);
        }
        else {
            vmlEl[isFill ? 'filled' : 'stroked'] = 'false';
            remove(vmlEl, el);
        }
    };

    var points$3 = [[], [], []];
    var pathDataToString = function (path, m) {
        var M = CMD$3.M;
        var C = CMD$3.C;
        var L = CMD$3.L;
        var A = CMD$3.A;
        var Q = CMD$3.Q;

        var str = [];
        var nPoint;
        var cmdStr;
        var cmd;
        var i;
        var xi;
        var yi;
        var data = path.data;
        var dataLength = path.len();
        for (i = 0; i < dataLength;) {
            cmd = data[i++];
            cmdStr = '';
            nPoint = 0;
            switch (cmd) {
                case M:
                    cmdStr = ' m ';
                    nPoint = 1;
                    xi = data[i++];
                    yi = data[i++];
                    points$3[0][0] = xi;
                    points$3[0][1] = yi;
                    break;
                case L:
                    cmdStr = ' l ';
                    nPoint = 1;
                    xi = data[i++];
                    yi = data[i++];
                    points$3[0][0] = xi;
                    points$3[0][1] = yi;
                    break;
                case Q:
                case C:
                    cmdStr = ' c ';
                    nPoint = 3;
                    var x1 = data[i++];
                    var y1 = data[i++];
                    var x2 = data[i++];
                    var y2 = data[i++];
                    var x3;
                    var y3;
                    if (cmd === Q) {
                        // Convert quadratic to cubic using degree elevation
                        x3 = x2;
                        y3 = y2;
                        x2 = (x2 + 2 * x1) / 3;
                        y2 = (y2 + 2 * y1) / 3;
                        x1 = (xi + 2 * x1) / 3;
                        y1 = (yi + 2 * y1) / 3;
                    }
                    else {
                        x3 = data[i++];
                        y3 = data[i++];
                    }
                    points$3[0][0] = x1;
                    points$3[0][1] = y1;
                    points$3[1][0] = x2;
                    points$3[1][1] = y2;
                    points$3[2][0] = x3;
                    points$3[2][1] = y3;

                    xi = x3;
                    yi = y3;
                    break;
                case A:
                    var x = 0;
                    var y = 0;
                    var sx = 1;
                    var sy = 1;
                    var angle = 0;
                    if (m) {
                        // Extract SRT from matrix
                        x = m[4];
                        y = m[5];
                        sx = sqrt(m[0] * m[0] + m[1] * m[1]);
                        sy = sqrt(m[2] * m[2] + m[3] * m[3]);
                        angle = Math.atan2(-m[1] / sy, m[0] / sx);
                    }

                    var cx = data[i++];
                    var cy = data[i++];
                    var rx = data[i++];
                    var ry = data[i++];
                    var startAngle = data[i++] + angle;
                    var endAngle = data[i++] + startAngle + angle;
                    // FIXME
                    // var psi = data[i++];
                    i++;
                    var clockwise = data[i++];

                    var x0 = cx + cos(startAngle) * rx;
                    var y0 = cy + sin(startAngle) * ry;

                    var x1 = cx + cos(endAngle) * rx;
                    var y1 = cy + sin(endAngle) * ry;

                    var type = clockwise ? ' wa ' : ' at ';
                    if (Math.abs(x0 - x1) < 1e-4) {
                        // IE won't render arches drawn counter clockwise if x0 == x1.
                        if (Math.abs(endAngle - startAngle) > 1e-2) {
                            // Offset x0 by 1/80 of a pixel. Use something
                            // that can be represented in binary
                            if (clockwise) {
                                x0 += 270 / Z;
                            }
                        }
                        else {
                            // Avoid case draw full circle
                            if (Math.abs(y0 - cy) < 1e-4) {
                                if ((clockwise && x0 < cx) || (!clockwise && x0 > cx)) {
                                    y1 -= 270 / Z;
                                }
                                else {
                                    y1 += 270 / Z;
                                }
                            }
                            else if ((clockwise && y0 < cy) || (!clockwise && y0 > cy)) {
                                x1 += 270 / Z;
                            }
                            else {
                                x1 -= 270 / Z;
                            }
                        }
                    }
                    str.push(
                        type,
                        round$3(((cx - rx) * sx + x) * Z - Z2), comma,
                        round$3(((cy - ry) * sy + y) * Z - Z2), comma,
                        round$3(((cx + rx) * sx + x) * Z - Z2), comma,
                        round$3(((cy + ry) * sy + y) * Z - Z2), comma,
                        round$3((x0 * sx + x) * Z - Z2), comma,
                        round$3((y0 * sy + y) * Z - Z2), comma,
                        round$3((x1 * sx + x) * Z - Z2), comma,
                        round$3((y1 * sy + y) * Z - Z2)
                    );

                    xi = x1;
                    yi = y1;
                    break;
                case CMD$3.R:
                    var p0 = points$3[0];
                    var p1 = points$3[1];
                    // x0, y0
                    p0[0] = data[i++];
                    p0[1] = data[i++];
                    // x1, y1
                    p1[0] = p0[0] + data[i++];
                    p1[1] = p0[1] + data[i++];

                    if (m) {
                        applyTransform(p0, p0, m);
                        applyTransform(p1, p1, m);
                    }

                    p0[0] = round$3(p0[0] * Z - Z2);
                    p1[0] = round$3(p1[0] * Z - Z2);
                    p0[1] = round$3(p0[1] * Z - Z2);
                    p1[1] = round$3(p1[1] * Z - Z2);
                    str.push(
                        // x0, y0
                        ' m ', p0[0], comma, p0[1],
                        // x1, y0
                        ' l ', p1[0], comma, p0[1],
                        // x1, y1
                        ' l ', p1[0], comma, p1[1],
                        // x0, y1
                        ' l ', p0[0], comma, p1[1]
                    );
                    break;
                case CMD$3.Z:
                    // FIXME Update xi, yi
                    str.push(' x ');
            }

            if (nPoint > 0) {
                str.push(cmdStr);
                for (var k = 0; k < nPoint; k++) {
                    var p = points$3[k];

                    m && applyTransform(p, p, m);
                    // 不 round 会非常慢
                    str.push(
                        round$3(p[0] * Z - Z2), comma, round$3(p[1] * Z - Z2),
                        k < nPoint - 1 ? comma : ''
                    );
                }
            }
        }

        return str.join('');
    };

    // Rewrite the original path method
    Path.prototype.brushVML = function (vmlRoot) {
        var style = this.style;

        var vmlEl = this._vmlEl;
        if (!vmlEl) {
            vmlEl = createNode('shape');
            initRootElStyle(vmlEl);

            this._vmlEl = vmlEl;
        }

        updateFillAndStroke(vmlEl, 'fill', style, this);
        updateFillAndStroke(vmlEl, 'stroke', style, this);

        var m = this.transform;
        var needTransform = m != null;
        var strokeEl = vmlEl.getElementsByTagName('stroke')[0];
        if (strokeEl) {
            var lineWidth = style.lineWidth;
            // Get the line scale.
            // Determinant of this.m_ means how much the area is enlarged by the
            // transformation. So its square root can be used as a scale factor
            // for width.
            if (needTransform && !style.strokeNoScale) {
                var det = m[0] * m[3] - m[1] * m[2];
                lineWidth *= sqrt(abs$1(det));
            }
            strokeEl.weight = lineWidth + 'px';
        }

        var path = this.path || (this.path = new PathProxy());
        if (this.__dirtyPath) {
            path.beginPath();
            this.buildPath(path, this.shape);
            path.toStatic();
            this.__dirtyPath = false;
        }

        vmlEl.path = pathDataToString(path, this.transform);

        vmlEl.style.zIndex = getZIndex(this.zlevel, this.z, this.z2);

        // Append to root
        append(vmlRoot, vmlEl);

        // Text
        if (style.text != null) {
            this.drawRectText(vmlRoot, this.getBoundingRect());
        }
        else {
            this.removeRectText(vmlRoot);
        }
    };

    Path.prototype.onRemove = function (vmlRoot) {
        remove(vmlRoot, this._vmlEl);
        this.removeRectText(vmlRoot);
    };

    Path.prototype.onAdd = function (vmlRoot) {
        append(vmlRoot, this._vmlEl);
        this.appendRectText(vmlRoot);
    };

    /***************************************************
     * IMAGE
     **************************************************/
    var isImage = function (img) {
        // FIXME img instanceof Image 如果 img 是一个字符串的时候，IE8 下会报错
        return (typeof img === 'object') && img.tagName && img.tagName.toUpperCase() === 'IMG';
        // return img instanceof Image;
    };

    // Rewrite the original path method
    ZImage.prototype.brushVML = function (vmlRoot) {
        var style = this.style;
        var image = style.image;

        // Image original width, height
        var ow;
        var oh;

        if (isImage(image)) {
            var src = image.src;
            if (src === this._imageSrc) {
                ow = this._imageWidth;
                oh = this._imageHeight;
            }
            else {
                var imageRuntimeStyle = image.runtimeStyle;
                var oldRuntimeWidth = imageRuntimeStyle.width;
                var oldRuntimeHeight = imageRuntimeStyle.height;
                imageRuntimeStyle.width = 'auto';
                imageRuntimeStyle.height = 'auto';

                // get the original size
                ow = image.width;
                oh = image.height;

                // and remove overides
                imageRuntimeStyle.width = oldRuntimeWidth;
                imageRuntimeStyle.height = oldRuntimeHeight;

                // Caching image original width, height and src
                this._imageSrc = src;
                this._imageWidth = ow;
                this._imageHeight = oh;
            }
            image = src;
        }
        else {
            if (image === this._imageSrc) {
                ow = this._imageWidth;
                oh = this._imageHeight;
            }
        }
        if (!image) {
            return;
        }

        var x = style.x || 0;
        var y = style.y || 0;

        var dw = style.width;
        var dh = style.height;

        var sw = style.sWidth;
        var sh = style.sHeight;
        var sx = style.sx || 0;
        var sy = style.sy || 0;

        var hasCrop = sw && sh;

        var vmlEl = this._vmlEl;
        if (!vmlEl) {
            // FIXME 使用 group 在 left, top 都不是 0 的时候就无法显示了。
            // vmlEl = vmlCore.createNode('group');
            vmlEl = doc.createElement('div');
            initRootElStyle(vmlEl);

            this._vmlEl = vmlEl;
        }

        var vmlElStyle = vmlEl.style;
        var hasRotation = false;
        var m;
        var scaleX = 1;
        var scaleY = 1;
        if (this.transform) {
            m = this.transform;
            scaleX = sqrt(m[0] * m[0] + m[1] * m[1]);
            scaleY = sqrt(m[2] * m[2] + m[3] * m[3]);

            hasRotation = m[1] || m[2];
        }
        if (hasRotation) {
            // If filters are necessary (rotation exists), create them
            // filters are bog-slow, so only create them if abbsolutely necessary
            // The following check doesn't account for skews (which don't exist
            // in the canvas spec (yet) anyway.
            // From excanvas
            var p0 = [x, y];
            var p1 = [x + dw, y];
            var p2 = [x, y + dh];
            var p3 = [x + dw, y + dh];
            applyTransform(p0, p0, m);
            applyTransform(p1, p1, m);
            applyTransform(p2, p2, m);
            applyTransform(p3, p3, m);

            var maxX = mathMax$8(p0[0], p1[0], p2[0], p3[0]);
            var maxY = mathMax$8(p0[1], p1[1], p2[1], p3[1]);

            var transformFilter = [];
            transformFilter.push('M11=', m[0] / scaleX, comma,
                        'M12=', m[2] / scaleY, comma,
                        'M21=', m[1] / scaleX, comma,
                        'M22=', m[3] / scaleY, comma,
                        'Dx=', round$3(x * scaleX + m[4]), comma,
                        'Dy=', round$3(y * scaleY + m[5]));

            vmlElStyle.padding = '0 ' + round$3(maxX) + 'px ' + round$3(maxY) + 'px 0';
            // FIXME DXImageTransform 在 IE11 的兼容模式下不起作用
            vmlElStyle.filter = imageTransformPrefix + '.Matrix('
                + transformFilter.join('') + ', SizingMethod=clip)';

        }
        else {
            if (m) {
                x = x * scaleX + m[4];
                y = y * scaleY + m[5];
            }
            vmlElStyle.filter = '';
            vmlElStyle.left = round$3(x) + 'px';
            vmlElStyle.top = round$3(y) + 'px';
        }

        var imageEl = this._imageEl;
        var cropEl = this._cropEl;

        if (!imageEl) {
            imageEl = doc.createElement('div');
            this._imageEl = imageEl;
        }
        var imageELStyle = imageEl.style;
        if (hasCrop) {
            // Needs know image original width and height
            if (! (ow && oh)) {
                var tmpImage = new Image();
                var self = this;
                tmpImage.onload = function () {
                    tmpImage.onload = null;
                    ow = tmpImage.width;
                    oh = tmpImage.height;
                    // Adjust image width and height to fit the ratio destinationSize / sourceSize
                    imageELStyle.width = round$3(scaleX * ow * dw / sw) + 'px';
                    imageELStyle.height = round$3(scaleY * oh * dh / sh) + 'px';

                    // Caching image original width, height and src
                    self._imageWidth = ow;
                    self._imageHeight = oh;
                    self._imageSrc = image;
                };
                tmpImage.src = image;
            }
            else {
                imageELStyle.width = round$3(scaleX * ow * dw / sw) + 'px';
                imageELStyle.height = round$3(scaleY * oh * dh / sh) + 'px';
            }

            if (! cropEl) {
                cropEl = doc.createElement('div');
                cropEl.style.overflow = 'hidden';
                this._cropEl = cropEl;
            }
            var cropElStyle = cropEl.style;
            cropElStyle.width = round$3((dw + sx * dw / sw) * scaleX);
            cropElStyle.height = round$3((dh + sy * dh / sh) * scaleY);
            cropElStyle.filter = imageTransformPrefix + '.Matrix(Dx='
                    + (-sx * dw / sw * scaleX) + ',Dy=' + (-sy * dh / sh * scaleY) + ')';

            if (! cropEl.parentNode) {
                vmlEl.appendChild(cropEl);
            }
            if (imageEl.parentNode != cropEl) {
                cropEl.appendChild(imageEl);
            }
        }
        else {
            imageELStyle.width = round$3(scaleX * dw) + 'px';
            imageELStyle.height = round$3(scaleY * dh) + 'px';

            vmlEl.appendChild(imageEl);

            if (cropEl && cropEl.parentNode) {
                vmlEl.removeChild(cropEl);
                this._cropEl = null;
            }
        }

        var filterStr = '';
        var alpha = style.opacity;
        if (alpha < 1) {
            filterStr += '.Alpha(opacity=' + round$3(alpha * 100) + ') ';
        }
        filterStr += imageTransformPrefix + '.AlphaImageLoader(src=' + image + ', SizingMethod=scale)';

        imageELStyle.filter = filterStr;

        vmlEl.style.zIndex = getZIndex(this.zlevel, this.z, this.z2);

        // Append to root
        append(vmlRoot, vmlEl);

        // Text
        if (style.text != null) {
            this.drawRectText(vmlRoot, this.getBoundingRect());
        }
    };

    ZImage.prototype.onRemove = function (vmlRoot) {
        remove(vmlRoot, this._vmlEl);

        this._vmlEl = null;
        this._cropEl = null;
        this._imageEl = null;

        this.removeRectText(vmlRoot);
    };

    ZImage.prototype.onAdd = function (vmlRoot) {
        append(vmlRoot, this._vmlEl);
        this.appendRectText(vmlRoot);
    };


    /***************************************************
     * TEXT
     **************************************************/

    var DEFAULT_STYLE_NORMAL = 'normal';

    var fontStyleCache = {};
    var fontStyleCacheCount = 0;
    var MAX_FONT_CACHE_SIZE = 100;
    var fontEl = document.createElement('div');

    var getFontStyle = function (fontString) {
        var fontStyle = fontStyleCache[fontString];
        if (!fontStyle) {
            // Clear cache
            if (fontStyleCacheCount > MAX_FONT_CACHE_SIZE) {
                fontStyleCacheCount = 0;
                fontStyleCache = {};
            }

            var style = fontEl.style;
            var fontFamily;
            try {
                style.font = fontString;
                fontFamily = style.fontFamily.split(',')[0];
            }
            catch (e) {
            }

            fontStyle = {
                style: style.fontStyle || DEFAULT_STYLE_NORMAL,
                variant: style.fontVariant || DEFAULT_STYLE_NORMAL,
                weight: style.fontWeight || DEFAULT_STYLE_NORMAL,
                size: parseFloat(style.fontSize || 12) | 0,
                family: fontFamily || 'Microsoft YaHei'
            };

            fontStyleCache[fontString] = fontStyle;
            fontStyleCacheCount++;
        }
        return fontStyle;
    };

    var textMeasureEl;
    // Overwrite measure text method
    $override$1('measureText', function (text, textFont) {
        var doc$$1 = doc;
        if (!textMeasureEl) {
            textMeasureEl = doc$$1.createElement('div');
            textMeasureEl.style.cssText = 'position:absolute;top:-20000px;left:0;'
                + 'padding:0;margin:0;border:none;white-space:pre;';
            doc.body.appendChild(textMeasureEl);
        }

        try {
            textMeasureEl.style.font = textFont;
        } catch (ex) {
            // Ignore failures to set to invalid font.
        }
        textMeasureEl.innerHTML = '';
        // Don't use innerHTML or innerText because they allow markup/whitespace.
        textMeasureEl.appendChild(doc$$1.createTextNode(text));
        return {
            width: textMeasureEl.offsetWidth
        };
    });

    var tmpRect$2 = new BoundingRect();

    var drawRectText = function (vmlRoot, rect, textRect, fromTextEl) {

        var style = this.style;

        // Optimize, avoid normalize every time.
        this.__dirty && normalizeTextStyle(style, true);

        var text = style.text;
        // Convert to string
        text != null && (text += '');
        if (!text) {
            return;
        }

        // Convert rich text to plain text. Rich text is not supported in
        // IE8-, but tags in rich text template will be removed.
        if (style.rich) {
            var contentBlock = parseRichText(text, style);
            text = [];
            for (var i = 0; i < contentBlock.lines.length; i++) {
                var tokens = contentBlock.lines[i].tokens;
                var textLine = [];
                for (var j = 0; j < tokens.length; j++) {
                    textLine.push(tokens[j].text);
                }
                text.push(textLine.join(''));
            }
            text = text.join('\n');
        }

        var x;
        var y;
        var align = style.textAlign;
        var verticalAlign = style.textVerticalAlign;

        var fontStyle = getFontStyle(style.font);
        // FIXME encodeHtmlAttribute ?
        var font = fontStyle.style + ' ' + fontStyle.variant + ' ' + fontStyle.weight + ' '
            + fontStyle.size + 'px "' + fontStyle.family + '"';

        textRect = textRect || getBoundingRect(text, font, align, verticalAlign);

        // Transform rect to view space
        var m = this.transform;
        // Ignore transform for text in other element
        if (m && !fromTextEl) {
            tmpRect$2.copy(rect);
            tmpRect$2.applyTransform(m);
            rect = tmpRect$2;
        }

        if (!fromTextEl) {
            var textPosition = style.textPosition;
            var distance$$1 = style.textDistance;
            // Text position represented by coord
            if (textPosition instanceof Array) {
                x = rect.x + parsePercent$3(textPosition[0], rect.width);
                y = rect.y + parsePercent$3(textPosition[1], rect.height);

                align = align || 'left';
            }
            else {
                var res = adjustTextPositionOnRect(
                    textPosition, rect, distance$$1
                );
                x = res.x;
                y = res.y;

                // Default align and baseline when has textPosition
                align = align || res.textAlign;
                verticalAlign = verticalAlign || res.textVerticalAlign;
            }
        }
        else {
            x = rect.x;
            y = rect.y;
        }

        x = adjustTextX(x, textRect.width, align);
        y = adjustTextY(y, textRect.height, verticalAlign);

        // Force baseline 'middle'
        y += textRect.height / 2;

        // var fontSize = fontStyle.size;
        // 1.75 is an arbitrary number, as there is no info about the text baseline
        // switch (baseline) {
            // case 'hanging':
            // case 'top':
            //     y += fontSize / 1.75;
            //     break;
        //     case 'middle':
        //         break;
        //     default:
        //     // case null:
        //     // case 'alphabetic':
        //     // case 'ideographic':
        //     // case 'bottom':
        //         y -= fontSize / 2.25;
        //         break;
        // }

        // switch (align) {
        //     case 'left':
        //         break;
        //     case 'center':
        //         x -= textRect.width / 2;
        //         break;
        //     case 'right':
        //         x -= textRect.width;
        //         break;
            // case 'end':
                // align = elementStyle.direction == 'ltr' ? 'right' : 'left';
                // break;
            // case 'start':
                // align = elementStyle.direction == 'rtl' ? 'right' : 'left';
                // break;
            // default:
            //     align = 'left';
        // }

        var createNode$$1 = createNode;

        var textVmlEl = this._textVmlEl;
        var pathEl;
        var textPathEl;
        var skewEl;
        if (!textVmlEl) {
            textVmlEl = createNode$$1('line');
            pathEl = createNode$$1('path');
            textPathEl = createNode$$1('textpath');
            skewEl = createNode$$1('skew');

            // FIXME Why here is not cammel case
            // Align 'center' seems wrong
            textPathEl.style['v-text-align'] = 'left';

            initRootElStyle(textVmlEl);

            pathEl.textpathok = true;
            textPathEl.on = true;

            textVmlEl.from = '0 0';
            textVmlEl.to = '1000 0.05';

            append(textVmlEl, skewEl);
            append(textVmlEl, pathEl);
            append(textVmlEl, textPathEl);

            this._textVmlEl = textVmlEl;
        }
        else {
            // 这里是在前面 appendChild 保证顺序的前提下
            skewEl = textVmlEl.firstChild;
            pathEl = skewEl.nextSibling;
            textPathEl = pathEl.nextSibling;
        }

        var coords = [x, y];
        var textVmlElStyle = textVmlEl.style;
        // Ignore transform for text in other element
        if (m && fromTextEl) {
            applyTransform(coords, coords, m);

            skewEl.on = true;

            skewEl.matrix = m[0].toFixed(3) + comma + m[2].toFixed(3) + comma +
            m[1].toFixed(3) + comma + m[3].toFixed(3) + ',0,0';

            // Text position
            skewEl.offset = (round$3(coords[0]) || 0) + ',' + (round$3(coords[1]) || 0);
            // Left top point as origin
            skewEl.origin = '0 0';

            textVmlElStyle.left = '0px';
            textVmlElStyle.top = '0px';
        }
        else {
            skewEl.on = false;
            textVmlElStyle.left = round$3(x) + 'px';
            textVmlElStyle.top = round$3(y) + 'px';
        }

        textPathEl.string = encodeHtmlAttribute(text);
        // TODO
        try {
            textPathEl.style.font = font;
        }
        // Error font format
        catch (e) {}

        updateFillAndStroke(textVmlEl, 'fill', {
            fill: style.textFill,
            opacity: style.opacity
        }, this);
        updateFillAndStroke(textVmlEl, 'stroke', {
            stroke: style.textStroke,
            opacity: style.opacity,
            lineDash: style.lineDash
        }, this);

        textVmlEl.style.zIndex = getZIndex(this.zlevel, this.z, this.z2);

        // Attached to root
        append(vmlRoot, textVmlEl);
    };

    var removeRectText = function (vmlRoot) {
        remove(vmlRoot, this._textVmlEl);
        this._textVmlEl = null;
    };

    var appendRectText = function (vmlRoot) {
        append(vmlRoot, this._textVmlEl);
    };

    var list = [RectText, Displayable, ZImage, Path, Text];

    // In case Displayable has been mixed in RectText
    for (var i$3 = 0; i$3 < list.length; i$3++) {
        var proto$8 = list[i$3].prototype;
        proto$8.drawRectText = drawRectText;
        proto$8.removeRectText = removeRectText;
        proto$8.appendRectText = appendRectText;
    }

    Text.prototype.brushVML = function (vmlRoot) {
        var style = this.style;
        if (style.text != null) {
            this.drawRectText(vmlRoot, {
                x: style.x || 0, y: style.y || 0,
                width: 0, height: 0
            }, this.getBoundingRect(), true);
        }
        else {
            this.removeRectText(vmlRoot);
        }
    };

    Text.prototype.onRemove = function (vmlRoot) {
        this.removeRectText(vmlRoot);
    };

    Text.prototype.onAdd = function (vmlRoot) {
        this.appendRectText(vmlRoot);
    };
}

/**
 * VML Painter.
 *
 * @module zrender/vml/Painter
 */

function parseInt10$1(val) {
    return parseInt(val, 10);
}

/**
 * @alias module:zrender/vml/Painter
 */
function VMLPainter(root, storage) {

    initVML();

    this.root = root;

    this.storage = storage;

    var vmlViewport = document.createElement('div');

    var vmlRoot = document.createElement('div');

    vmlViewport.style.cssText = 'display:inline-block;overflow:hidden;position:relative;width:300px;height:150px;';

    vmlRoot.style.cssText = 'position:absolute;left:0;top:0;';

    root.appendChild(vmlViewport);

    this._vmlRoot = vmlRoot;
    this._vmlViewport = vmlViewport;

    this.resize();

    // Modify storage
    var oldDelFromStorage = storage.delFromStorage;
    var oldAddToStorage = storage.addToStorage;
    storage.delFromStorage = function (el) {
        oldDelFromStorage.call(storage, el);

        if (el) {
            el.onRemove && el.onRemove(vmlRoot);
        }
    };

    storage.addToStorage = function (el) {
        // Displayable already has a vml node
        el.onAdd && el.onAdd(vmlRoot);

        oldAddToStorage.call(storage, el);
    };

    this._firstPaint = true;
}

VMLPainter.prototype = {

    constructor: VMLPainter,

    getType: function () {
        return 'vml';
    },

    /**
     * @return {HTMLDivElement}
     */
    getViewportRoot: function () {
        return this._vmlViewport;
    },

    getViewportRootOffset: function () {
        var viewportRoot = this.getViewportRoot();
        if (viewportRoot) {
            return {
                offsetLeft: viewportRoot.offsetLeft || 0,
                offsetTop: viewportRoot.offsetTop || 0
            };
        }
    },

    /**
     * 刷新
     */
    refresh: function () {

        var list = this.storage.getDisplayList(true, true);

        this._paintList(list);
    },

    _paintList: function (list) {
        var vmlRoot = this._vmlRoot;
        for (var i = 0; i < list.length; i++) {
            var el = list[i];
            if (el.invisible || el.ignore) {
                if (!el.__alreadyNotVisible) {
                    el.onRemove(vmlRoot);
                }
                // Set as already invisible
                el.__alreadyNotVisible = true;
            }
            else {
                if (el.__alreadyNotVisible) {
                    el.onAdd(vmlRoot);
                }
                el.__alreadyNotVisible = false;
                if (el.__dirty) {
                    el.beforeBrush && el.beforeBrush();
                    (el.brushVML || el.brush).call(el, vmlRoot);
                    el.afterBrush && el.afterBrush();
                }
            }
            el.__dirty = false;
        }

        if (this._firstPaint) {
            // Detached from document at first time
            // to avoid page refreshing too many times

            // FIXME 如果每次都先 removeChild 可能会导致一些填充和描边的效果改变
            this._vmlViewport.appendChild(vmlRoot);
            this._firstPaint = false;
        }
    },

    resize: function (width, height) {
        var width = width == null ? this._getWidth() : width;
        var height = height == null ? this._getHeight() : height;

        if (this._width != width || this._height != height) {
            this._width = width;
            this._height = height;

            var vmlViewportStyle = this._vmlViewport.style;
            vmlViewportStyle.width = width + 'px';
            vmlViewportStyle.height = height + 'px';
        }
    },

    dispose: function () {
        this.root.innerHTML = '';

        this._vmlRoot =
        this._vmlViewport =
        this.storage = null;
    },

    getWidth: function () {
        return this._width;
    },

    getHeight: function () {
        return this._height;
    },

    clear: function () {
        if (this._vmlViewport) {
            this.root.removeChild(this._vmlViewport);
        }
    },

    _getWidth: function () {
        var root = this.root;
        var stl = root.currentStyle;

        return ((root.clientWidth || parseInt10$1(stl.width))
                - parseInt10$1(stl.paddingLeft)
                - parseInt10$1(stl.paddingRight)) | 0;
    },

    _getHeight: function () {
        var root = this.root;
        var stl = root.currentStyle;

        return ((root.clientHeight || parseInt10$1(stl.height))
                - parseInt10$1(stl.paddingTop)
                - parseInt10$1(stl.paddingBottom)) | 0;
    }
};

// Not supported methods
function createMethodNotSupport(method) {
    return function () {
        zrLog('In IE8.0 VML mode painter not support method "' + method + '"');
    };
}

// Unsupported methods
each$1([
    'getLayer', 'insertLayer', 'eachLayer', 'eachBuiltinLayer', 'eachOtherLayer', 'getLayers',
    'modLayer', 'delLayer', 'clearLayer', 'toDataURL', 'pathToImage'
], function (name) {
    VMLPainter.prototype[name] = createMethodNotSupport(name);
});

registerPainter('vml', VMLPainter);

var svgURI = 'http://www.w3.org/2000/svg';

function createElement(name) {
    return document.createElementNS(svgURI, name);
}

// TODO
// 1. shadow
// 2. Image: sx, sy, sw, sh

var CMD$4 = PathProxy.CMD;
var arrayJoin = Array.prototype.join;

var NONE = 'none';
var mathRound = Math.round;
var mathSin$3 = Math.sin;
var mathCos$3 = Math.cos;
var PI$5 = Math.PI;
var PI2$7 = Math.PI * 2;
var degree = 180 / PI$5;

var EPSILON$4 = 1e-4;

function round4(val) {
    return mathRound(val * 1e4) / 1e4;
}

function isAroundZero$1(val) {
    return val < EPSILON$4 && val > -EPSILON$4;
}

function pathHasFill(style, isText) {
    var fill = isText ? style.textFill : style.fill;
    return fill != null && fill !== NONE;
}

function pathHasStroke(style, isText) {
    var stroke = isText ? style.textStroke : style.stroke;
    return stroke != null && stroke !== NONE;
}

function setTransform(svgEl, m) {
    if (m) {
        attr(svgEl, 'transform', 'matrix(' + arrayJoin.call(m, ',') + ')');
    }
}

function attr(el, key, val) {
    if (!val || val.type !== 'linear' && val.type !== 'radial') {
        // Don't set attribute for gradient, since it need new dom nodes
        el.setAttribute(key, val);
    }
}

function attrXLink(el, key, val) {
    el.setAttributeNS('http://www.w3.org/1999/xlink', key, val);
}

function bindStyle(svgEl, style, isText) {
    if (pathHasFill(style, isText)) {
        var fill = isText ? style.textFill : style.fill;
        fill = fill === 'transparent' ? NONE : fill;

        /**
         * FIXME:
         * This is a temporary fix for Chrome's clipping bug
         * that happens when a clip-path is referring another one.
         * This fix should be used before Chrome's bug is fixed.
         * For an element that has clip-path, and fill is none,
         * set it to be "rgba(0, 0, 0, 0.002)" will hide the element.
         * Otherwise, it will show black fill color.
         * 0.002 is used because this won't work for alpha values smaller
         * than 0.002.
         *
         * See
         * https://bugs.chromium.org/p/chromium/issues/detail?id=659790
         * for more information.
         */
        if (svgEl.getAttribute('clip-path') !== 'none' && fill === NONE) {
            fill = 'rgba(0, 0, 0, 0.002)';
        }

        attr(svgEl, 'fill', fill);
        attr(svgEl, 'fill-opacity', style.opacity);
    }
    else {
        attr(svgEl, 'fill', NONE);
    }

    if (pathHasStroke(style, isText)) {
        var stroke = isText ? style.textStroke : style.stroke;
        stroke = stroke === 'transparent' ? NONE : stroke;
        attr(svgEl, 'stroke', stroke);
        var strokeWidth = isText
            ? style.textStrokeWidth
            : style.lineWidth;
        var strokeScale = !isText && style.strokeNoScale
            ? style.host.getLineScale()
            : 1;
        attr(svgEl, 'stroke-width', strokeWidth / strokeScale);
        // stroke then fill for text; fill then stroke for others
        attr(svgEl, 'paint-order', isText ? 'stroke' : 'fill');
        attr(svgEl, 'stroke-opacity', style.opacity);
        var lineDash = style.lineDash;
        if (lineDash) {
            attr(svgEl, 'stroke-dasharray', style.lineDash.join(','));
            attr(svgEl, 'stroke-dashoffset', mathRound(style.lineDashOffset || 0));
        }
        else {
            attr(svgEl, 'stroke-dasharray', '');
        }

        // PENDING
        style.lineCap && attr(svgEl, 'stroke-linecap', style.lineCap);
        style.lineJoin && attr(svgEl, 'stroke-linejoin', style.lineJoin);
        style.miterLimit && attr(svgEl, 'stroke-miterlimit', style.miterLimit);
    }
    else {
        attr(svgEl, 'stroke', NONE);
    }
}

/***************************************************
 * PATH
 **************************************************/
function pathDataToString$1(path) {
    var str = [];
    var data = path.data;
    var dataLength = path.len();
    for (var i = 0; i < dataLength;) {
        var cmd = data[i++];
        var cmdStr = '';
        var nData = 0;
        switch (cmd) {
            case CMD$4.M:
                cmdStr = 'M';
                nData = 2;
                break;
            case CMD$4.L:
                cmdStr = 'L';
                nData = 2;
                break;
            case CMD$4.Q:
                cmdStr = 'Q';
                nData = 4;
                break;
            case CMD$4.C:
                cmdStr = 'C';
                nData = 6;
                break;
            case CMD$4.A:
                var cx = data[i++];
                var cy = data[i++];
                var rx = data[i++];
                var ry = data[i++];
                var theta = data[i++];
                var dTheta = data[i++];
                var psi = data[i++];
                var clockwise = data[i++];

                var dThetaPositive = Math.abs(dTheta);
                var isCircle = isAroundZero$1(dThetaPositive - PI2$7)
                    && !isAroundZero$1(dThetaPositive);

                var large = false;
                if (dThetaPositive >= PI2$7) {
                    large = true;
                }
                else if (isAroundZero$1(dThetaPositive)) {
                    large = false;
                }
                else {
                    large = (dTheta > -PI$5 && dTheta < 0 || dTheta > PI$5)
                        === !!clockwise;
                }

                var x0 = round4(cx + rx * mathCos$3(theta));
                var y0 = round4(cy + ry * mathSin$3(theta));

                // It will not draw if start point and end point are exactly the same
                // We need to shift the end point with a small value
                // FIXME A better way to draw circle ?
                if (isCircle) {
                    if (clockwise) {
                        dTheta = PI2$7 - 1e-4;
                    }
                    else {
                        dTheta = -PI2$7 + 1e-4;
                    }

                    large = true;

                    if (i === 9) {
                        // Move to (x0, y0) only when CMD.A comes at the
                        // first position of a shape.
                        // For instance, when drawing a ring, CMD.A comes
                        // after CMD.M, so it's unnecessary to move to
                        // (x0, y0).
                        str.push('M', x0, y0);
                    }
                }

                var x = round4(cx + rx * mathCos$3(theta + dTheta));
                var y = round4(cy + ry * mathSin$3(theta + dTheta));

                // FIXME Ellipse
                str.push('A', round4(rx), round4(ry),
                    mathRound(psi * degree), +large, +clockwise, x, y);
                break;
            case CMD$4.Z:
                cmdStr = 'Z';
                break;
            case CMD$4.R:
                var x = round4(data[i++]);
                var y = round4(data[i++]);
                var w = round4(data[i++]);
                var h = round4(data[i++]);
                str.push(
                    'M', x, y,
                    'L', x + w, y,
                    'L', x + w, y + h,
                    'L', x, y + h,
                    'L', x, y
                );
                break;
        }
        cmdStr && str.push(cmdStr);
        for (var j = 0; j < nData; j++) {
            // PENDING With scale
            str.push(round4(data[i++]));
        }
    }
    return str.join(' ');
}

var svgPath = {};
svgPath.brush = function (el) {
    var style = el.style;

    var svgEl = el.__svgEl;
    if (!svgEl) {
        svgEl = createElement('path');
        el.__svgEl = svgEl;
    }

    if (!el.path) {
        el.createPathProxy();
    }
    var path = el.path;

    if (el.__dirtyPath) {
        path.beginPath();
        el.buildPath(path, el.shape);
        el.__dirtyPath = false;

        var pathStr = pathDataToString$1(path);
        if (pathStr.indexOf('NaN') < 0) {
            // Ignore illegal path, which may happen such in out-of-range
            // data in Calendar series.
            attr(svgEl, 'd', pathStr);
        }
    }

    bindStyle(svgEl, style);
    setTransform(svgEl, el.transform);

    if (style.text != null) {
        svgTextDrawRectText(el, el.getBoundingRect());
    }
};

/***************************************************
 * IMAGE
 **************************************************/
var svgImage = {};
svgImage.brush = function (el) {
    var style = el.style;
    var image = style.image;

    if (image instanceof HTMLImageElement) {
        var src = image.src;
        image = src;
    }
    if (! image) {
        return;
    }

    var x = style.x || 0;
    var y = style.y || 0;

    var dw = style.width;
    var dh = style.height;

    var svgEl = el.__svgEl;
    if (! svgEl) {
        svgEl = createElement('image');
        el.__svgEl = svgEl;
    }

    if (image !== el.__imageSrc) {
        attrXLink(svgEl, 'href', image);
        // Caching image src
        el.__imageSrc = image;
    }

    attr(svgEl, 'width', dw);
    attr(svgEl, 'height', dh);

    attr(svgEl, 'x', x);
    attr(svgEl, 'y', y);

    setTransform(svgEl, el.transform);

    if (style.text != null) {
        svgTextDrawRectText(el, el.getBoundingRect());
    }
};

/***************************************************
 * TEXT
 **************************************************/
var svgText = {};
var tmpRect$3 = new BoundingRect();

var svgTextDrawRectText = function (el, rect, textRect) {
    var style = el.style;

    el.__dirty && normalizeTextStyle(style, true);

    var text = style.text;
    // Convert to string
    if (text == null) {
        // Draw no text only when text is set to null, but not ''
        return;
    }
    else {
        text += '';
    }

    var textSvgEl = el.__textSvgEl;
    if (! textSvgEl) {
        textSvgEl = createElement('text');
        el.__textSvgEl = textSvgEl;
    }

    var x;
    var y;
    var textPosition = style.textPosition;
    var distance = style.textDistance;
    var align = style.textAlign || 'left';

    if (typeof style.fontSize === 'number') {
        style.fontSize += 'px';
    }
    var font = style.font
        || [
            style.fontStyle || '',
            style.fontWeight || '',
            style.fontSize || '',
            style.fontFamily || ''
        ].join(' ')
        || DEFAULT_FONT;

    var verticalAlign = getVerticalAlignForSvg(style.textVerticalAlign);

    textRect = getBoundingRect(text, font, align,
        verticalAlign);

    var lineHeight = textRect.lineHeight;
    // Text position represented by coord
    if (textPosition instanceof Array) {
        x = rect.x + textPosition[0];
        y = rect.y + textPosition[1];
    }
    else {
        var newPos = adjustTextPositionOnRect(
            textPosition, rect, distance
        );
        x = newPos.x;
        y = newPos.y;
        verticalAlign = getVerticalAlignForSvg(newPos.textVerticalAlign);
        align = newPos.textAlign;
    }

    attr(textSvgEl, 'alignment-baseline', verticalAlign);

    if (font) {
        textSvgEl.style.font = font;
    }

    var textPadding = style.textPadding;

    // Make baseline top
    attr(textSvgEl, 'x', x);
    attr(textSvgEl, 'y', y);

    bindStyle(textSvgEl, style, true);
    if (el instanceof Text || el.style.transformText) {
        // Transform text with element
        setTransform(textSvgEl, el.transform);
    }
    else {
        if (el.transform) {
            tmpRect$3.copy(rect);
            tmpRect$3.applyTransform(el.transform);
            rect = tmpRect$3;
        }
        else {
            var pos = el.transformCoordToGlobal(rect.x, rect.y);
            rect.x = pos[0];
            rect.y = pos[1];
        }

        // Text rotation, but no element transform
        var origin = style.textOrigin;
        if (origin === 'center') {
            x = textRect.width / 2 + x;
            y = textRect.height / 2 + y;
        }
        else if (origin) {
            x = origin[0] + x;
            y = origin[1] + y;
        }
        var rotate = -style.textRotation * 180 / Math.PI;
        attr(textSvgEl, 'transform', 'rotate(' + rotate + ','
            + x + ',' + y + ')');
    }

    var textLines = text.split('\n');
    var nTextLines = textLines.length;
    var textAnchor = align;
    // PENDING
    if (textAnchor === 'left')  {
        textAnchor = 'start';
        textPadding && (x += textPadding[3]);
    }
    else if (textAnchor === 'right') {
        textAnchor = 'end';
        textPadding && (x -= textPadding[1]);
    }
    else if (textAnchor === 'center') {
        textAnchor = 'middle';
        textPadding && (x += (textPadding[3] - textPadding[1]) / 2);
    }

    var dy = 0;
    if (verticalAlign === 'baseline') {
        dy = -textRect.height + lineHeight;
        textPadding && (dy -= textPadding[2]);
    }
    else if (verticalAlign === 'middle') {
        dy = (-textRect.height + lineHeight) / 2;
        textPadding && (y += (textPadding[0] - textPadding[2]) / 2);
    }
    else {
        textPadding && (dy += textPadding[0]);
    }

    // Font may affect position of each tspan elements
    if (el.__text !== text || el.__textFont !== font) {
        var tspanList = el.__tspanList || [];
        el.__tspanList = tspanList;
        for (var i = 0; i < nTextLines; i++) {
            // Using cached tspan elements
            var tspan = tspanList[i];
            if (! tspan) {
                tspan = tspanList[i] = createElement('tspan');
                textSvgEl.appendChild(tspan);
                attr(tspan, 'alignment-baseline', verticalAlign);
                attr(tspan, 'text-anchor', textAnchor);
            }
            else {
                tspan.innerHTML = '';
            }
            attr(tspan, 'x', x);
            attr(tspan, 'y', y + i * lineHeight + dy);
            tspan.appendChild(document.createTextNode(textLines[i]));
        }
        // Remove unsed tspan elements
        for (; i < tspanList.length; i++) {
            textSvgEl.removeChild(tspanList[i]);
        }
        tspanList.length = nTextLines;

        el.__text = text;
        el.__textFont = font;
    }
    else if (el.__tspanList.length) {
        // Update span x and y
        var len = el.__tspanList.length;
        for (var i = 0; i < len; ++i) {
            var tspan = el.__tspanList[i];
            if (tspan) {
                attr(tspan, 'x', x);
                attr(tspan, 'y', y + i * lineHeight + dy);
            }
        }
    }
};

function getVerticalAlignForSvg(verticalAlign) {
    if (verticalAlign === 'middle') {
        return 'middle';
    }
    else if (verticalAlign === 'bottom') {
        return 'baseline';
    }
    else {
        return 'hanging';
    }
}

svgText.drawRectText = svgTextDrawRectText;

svgText.brush = function (el) {
    var style = el.style;
    if (style.text != null) {
        // 强制设置 textPosition
        style.textPosition = [0, 0];
        svgTextDrawRectText(el, {
            x: style.x || 0, y: style.y || 0,
            width: 0, height: 0
        }, el.getBoundingRect());
    }
};

// Myers' Diff Algorithm
// Modified from https://github.com/kpdecker/jsdiff/blob/master/src/diff/base.js

function Diff() {}

Diff.prototype = {
    diff: function (oldArr, newArr, equals) {
        if (!equals) {
            equals = function (a, b) {
                return a === b;
            };
        }
        this.equals = equals;

        var self = this;

        oldArr = oldArr.slice();
        newArr = newArr.slice();
        // Allow subclasses to massage the input prior to running
        var newLen = newArr.length;
        var oldLen = oldArr.length;
        var editLength = 1;
        var maxEditLength = newLen + oldLen;
        var bestPath = [{ newPos: -1, components: [] }];

        // Seed editLength = 0, i.e. the content starts with the same values
        var oldPos = this.extractCommon(bestPath[0], newArr, oldArr, 0);
        if (bestPath[0].newPos + 1 >= newLen && oldPos + 1 >= oldLen) {
            var indices = [];
            for (var i = 0; i < newArr.length; i++) {
                indices.push(i);
            }
            // Identity per the equality and tokenizer
            return [{
                indices: indices, count: newArr.length
            }];
        }

        // Main worker method. checks all permutations of a given edit length for acceptance.
        function execEditLength() {
            for (var diagonalPath = -1 * editLength; diagonalPath <= editLength; diagonalPath += 2) {
                var basePath;
                var addPath = bestPath[diagonalPath - 1];
                var removePath = bestPath[diagonalPath + 1];
                var oldPos = (removePath ? removePath.newPos : 0) - diagonalPath;
                if (addPath) {
                    // No one else is going to attempt to use this value, clear it
                    bestPath[diagonalPath - 1] = undefined;
                }

                var canAdd = addPath && addPath.newPos + 1 < newLen;
                var canRemove = removePath && 0 <= oldPos && oldPos < oldLen;
                if (!canAdd && !canRemove) {
                    // If this path is a terminal then prune
                    bestPath[diagonalPath] = undefined;
                    continue;
                }

                // Select the diagonal that we want to branch from. We select the prior
                // path whose position in the new string is the farthest from the origin
                // and does not pass the bounds of the diff graph
                if (!canAdd || (canRemove && addPath.newPos < removePath.newPos)) {
                    basePath = clonePath(removePath);
                    self.pushComponent(basePath.components, undefined, true);
                }
                else {
                    basePath = addPath;   // No need to clone, we've pulled it from the list
                    basePath.newPos++;
                    self.pushComponent(basePath.components, true, undefined);
                }

                oldPos = self.extractCommon(basePath, newArr, oldArr, diagonalPath);

                // If we have hit the end of both strings, then we are done
                if (basePath.newPos + 1 >= newLen && oldPos + 1 >= oldLen) {
                    return buildValues(self, basePath.components, newArr, oldArr);
                }
                else {
                    // Otherwise track this path as a potential candidate and continue.
                    bestPath[diagonalPath] = basePath;
                }
            }

            editLength++;
        }

        while (editLength <= maxEditLength) {
            var ret = execEditLength();
            if (ret) {
                return ret;
            }
        }
    },

    pushComponent: function (components, added, removed) {
        var last = components[components.length - 1];
        if (last && last.added === added && last.removed === removed) {
            // We need to clone here as the component clone operation is just
            // as shallow array clone
            components[components.length - 1] = {count: last.count + 1, added: added, removed: removed };
        }
        else {
            components.push({count: 1, added: added, removed: removed });
        }
    },
    extractCommon: function (basePath, newArr, oldArr, diagonalPath) {
        var newLen = newArr.length;
        var oldLen = oldArr.length;
        var newPos = basePath.newPos;
        var oldPos = newPos - diagonalPath;
        var commonCount = 0;

        while (newPos + 1 < newLen && oldPos + 1 < oldLen && this.equals(newArr[newPos + 1], oldArr[oldPos + 1])) {
            newPos++;
            oldPos++;
            commonCount++;
        }

        if (commonCount) {
            basePath.components.push({count: commonCount});
        }

        basePath.newPos = newPos;
        return oldPos;
    },
    tokenize: function (value) {
        return value.slice();
    },
    join: function (value) {
        return value.slice();
    }
};

function buildValues(diff, components, newArr, oldArr) {
    var componentPos = 0;
    var componentLen = components.length;
    var newPos = 0;
    var oldPos = 0;

    for (; componentPos < componentLen; componentPos++) {
        var component = components[componentPos];
        if (!component.removed) {
            var indices = [];
            for (var i = newPos; i < newPos + component.count; i++) {
                indices.push(i);
            }
            component.indices = indices;
            newPos += component.count;
            // Common case
            if (!component.added) {
                oldPos += component.count;
            }
        }
        else {
            var indices = [];
            for (var i = oldPos; i < oldPos + component.count; i++) {
                indices.push(i);
            }
            component.indices = indices;
            oldPos += component.count;
        }
    }

    return components;
}

function clonePath(path) {
    return { newPos: path.newPos, components: path.components.slice(0) };
}

var arrayDiff = new Diff();

var arrayDiff$1 = function (oldArr, newArr, callback) {
    return arrayDiff.diff(oldArr, newArr, callback);
};

/**
 * @file Manages elements that can be defined in <defs> in SVG,
 *       e.g., gradients, clip path, etc.
 * @author Zhang Wenli
 */

var MARK_UNUSED = '0';
var MARK_USED = '1';

/**
 * Manages elements that can be defined in <defs> in SVG,
 * e.g., gradients, clip path, etc.
 *
 * @class
 * @param {number}          zrId      zrender instance id
 * @param {SVGElement}      svgRoot   root of SVG document
 * @param {string|string[]} tagNames  possible tag names
 * @param {string}          markLabel label name to make if the element
 *                                    is used
 */
function Definable(
    zrId,
    svgRoot,
    tagNames,
    markLabel,
    domName
) {
    this._zrId = zrId;
    this._svgRoot = svgRoot;
    this._tagNames = typeof tagNames === 'string' ? [tagNames] : tagNames;
    this._markLabel = markLabel;
    this._domName = domName || '_dom';

    this.nextId = 0;
}


Definable.prototype.createElement = createElement;


/**
 * Get the <defs> tag for svgRoot; optionally creates one if not exists.
 *
 * @param {boolean} isForceCreating if need to create when not exists
 * @return {SVGDefsElement} SVG <defs> element, null if it doesn't
 * exist and isForceCreating is false
 */
Definable.prototype.getDefs = function (isForceCreating) {
    var svgRoot = this._svgRoot;
    var defs = this._svgRoot.getElementsByTagName('defs');
    if (defs.length === 0) {
        // Not exist
        if (isForceCreating) {
            defs = svgRoot.insertBefore(
                this.createElement('defs'), // Create new tag
                svgRoot.firstChild // Insert in the front of svg
            );
            if (!defs.contains) {
                // IE doesn't support contains method
                defs.contains = function (el) {
                    var children = defs.children;
                    if (!children) {
                        return false;
                    }
                    for (var i = children.length - 1; i >= 0; --i) {
                        if (children[i] === el) {
                            return true;
                        }
                    }
                    return false;
                };
            }
            return defs;
        }
        else {
            return null;
        }
    }
    else {
        return defs[0];
    }
};


/**
 * Update DOM element if necessary.
 *
 * @param {Object|string} element style element. e.g., for gradient,
 *                                it may be '#ccc' or {type: 'linear', ...}
 * @param {Function|undefined} onUpdate update callback
 */
Definable.prototype.update = function (element, onUpdate) {
    if (!element) {
        return;
    }

    var defs = this.getDefs(false);
    if (element[this._domName] && defs.contains(element[this._domName])) {
        // Update DOM
        if (typeof onUpdate === 'function') {
            onUpdate(element);
        }
    }
    else {
        // No previous dom, create new
        var dom = this.add(element);
        if (dom) {
            element[this._domName] = dom;
        }
    }
};


/**
 * Add gradient dom to defs
 *
 * @param {SVGElement} dom DOM to be added to <defs>
 */
Definable.prototype.addDom = function (dom) {
    var defs = this.getDefs(true);
    defs.appendChild(dom);
};


/**
 * Remove DOM of a given element.
 *
 * @param {SVGElement} element element to remove dom
 */
Definable.prototype.removeDom = function (element) {
    var defs = this.getDefs(false);
    if (defs && element[this._domName]) {
        defs.removeChild(element[this._domName]);
        element[this._domName] = null;
    }
};


/**
 * Get DOMs of this element.
 *
 * @return {HTMLDomElement} doms of this defineable elements in <defs>
 */
Definable.prototype.getDoms = function () {
    var defs = this.getDefs(false);
    if (!defs) {
        // No dom when defs is not defined
        return [];
    }

    var doms = [];
    each$1(this._tagNames, function (tagName) {
        var tags = defs.getElementsByTagName(tagName);
        // Note that tags is HTMLCollection, which is array-like
        // rather than real array.
        // So `doms.concat(tags)` add tags as one object.
        doms = doms.concat([].slice.call(tags));
    });

    return doms;
};


/**
 * Mark DOMs to be unused before painting, and clear unused ones at the end
 * of the painting.
 */
Definable.prototype.markAllUnused = function () {
    var doms = this.getDoms();
    var that = this;
    each$1(doms, function (dom) {
        dom[that._markLabel] = MARK_UNUSED;
    });
};


/**
 * Mark a single DOM to be used.
 *
 * @param {SVGElement} dom DOM to mark
 */
Definable.prototype.markUsed = function (dom) {
    if (dom) {
        dom[this._markLabel] = MARK_USED;
    }
};


/**
 * Remove unused DOMs defined in <defs>
 */
Definable.prototype.removeUnused = function () {
    var defs = this.getDefs(false);
    if (!defs) {
        // Nothing to remove
        return;
    }

    var doms = this.getDoms();
    var that = this;
    each$1(doms, function (dom) {
        if (dom[that._markLabel] !== MARK_USED) {
            // Remove gradient
            defs.removeChild(dom);
        }
    });
};


/**
 * Get SVG proxy.
 *
 * @param {Displayable} displayable displayable element
 * @return {Path|Image|Text} svg proxy of given element
 */
Definable.prototype.getSvgProxy = function (displayable) {
    if (displayable instanceof Path) {
        return svgPath;
    }
    else if (displayable instanceof ZImage) {
        return svgImage;
    }
    else if (displayable instanceof Text) {
        return svgText;
    }
    else {
        return svgPath;
    }
};


/**
 * Get text SVG element.
 *
 * @param {Displayable} displayable displayable element
 * @return {SVGElement} SVG element of text
 */
Definable.prototype.getTextSvgElement = function (displayable) {
    return displayable.__textSvgEl;
};


/**
 * Get SVG element.
 *
 * @param {Displayable} displayable displayable element
 * @return {SVGElement} SVG element
 */
Definable.prototype.getSvgElement = function (displayable) {
    return displayable.__svgEl;
};

/**
 * @file Manages SVG gradient elements.
 * @author Zhang Wenli
 */

/**
 * Manages SVG gradient elements.
 *
 * @class
 * @extends Definable
 * @param   {number}     zrId    zrender instance id
 * @param   {SVGElement} svgRoot root of SVG document
 */
function GradientManager(zrId, svgRoot) {
    Definable.call(
        this,
        zrId,
        svgRoot,
        ['linearGradient', 'radialGradient'],
        '__gradient_in_use__'
    );
}


inherits(GradientManager, Definable);


/**
 * Create new gradient DOM for fill or stroke if not exist,
 * but will not update gradient if exists.
 *
 * @param {SvgElement}  svgElement   SVG element to paint
 * @param {Displayable} displayable  zrender displayable element
 */
GradientManager.prototype.addWithoutUpdate = function (
    svgElement,
    displayable
) {
    if (displayable && displayable.style) {
        var that = this;
        each$1(['fill', 'stroke'], function (fillOrStroke) {
            if (displayable.style[fillOrStroke]
                && (displayable.style[fillOrStroke].type === 'linear'
                || displayable.style[fillOrStroke].type === 'radial')
            ) {
                var gradient = displayable.style[fillOrStroke];
                var defs = that.getDefs(true);

                // Create dom in <defs> if not exists
                var dom;
                if (gradient._dom) {
                    // Gradient exists
                    dom = gradient._dom;
                    if (!defs.contains(gradient._dom)) {
                        // _dom is no longer in defs, recreate
                        that.addDom(dom);
                    }
                }
                else {
                    // New dom
                    dom = that.add(gradient);
                }

                that.markUsed(displayable);

                var id = dom.getAttribute('id');
                svgElement.setAttribute(fillOrStroke, 'url(#' + id + ')');
            }
        });
    }
};


/**
 * Add a new gradient tag in <defs>
 *
 * @param   {Gradient} gradient zr gradient instance
 * @return {SVGLinearGradientElement | SVGRadialGradientElement}
 *                            created DOM
 */
GradientManager.prototype.add = function (gradient) {
    var dom;
    if (gradient.type === 'linear') {
        dom = this.createElement('linearGradient');
    }
    else if (gradient.type === 'radial') {
        dom = this.createElement('radialGradient');
    }
    else {
        zrLog('Illegal gradient type.');
        return null;
    }

    // Set dom id with gradient id, since each gradient instance
    // will have no more than one dom element.
    // id may exists before for those dirty elements, in which case
    // id should remain the same, and other attributes should be
    // updated.
    gradient.id = gradient.id || this.nextId++;
    dom.setAttribute('id', 'zr' + this._zrId
        + '-gradient-' + gradient.id);

    this.updateDom(gradient, dom);
    this.addDom(dom);

    return dom;
};


/**
 * Update gradient.
 *
 * @param {Gradient} gradient zr gradient instance
 */
GradientManager.prototype.update = function (gradient) {
    var that = this;
    Definable.prototype.update.call(this, gradient, function () {
        var type = gradient.type;
        var tagName = gradient._dom.tagName;
        if (type === 'linear' && tagName === 'linearGradient'
            || type === 'radial' && tagName === 'radialGradient'
        ) {
            // Gradient type is not changed, update gradient
            that.updateDom(gradient, gradient._dom);
        }
        else {
            // Remove and re-create if type is changed
            that.removeDom(gradient);
            that.add(gradient);
        }
    });
};


/**
 * Update gradient dom
 *
 * @param {Gradient} gradient zr gradient instance
 * @param {SVGLinearGradientElement | SVGRadialGradientElement} dom
 *                            DOM to update
 */
GradientManager.prototype.updateDom = function (gradient, dom) {
    if (gradient.type === 'linear') {
        dom.setAttribute('x1', gradient.x);
        dom.setAttribute('y1', gradient.y);
        dom.setAttribute('x2', gradient.x2);
        dom.setAttribute('y2', gradient.y2);
    }
    else if (gradient.type === 'radial') {
        dom.setAttribute('cx', gradient.x);
        dom.setAttribute('cy', gradient.y);
        dom.setAttribute('r', gradient.r);
    }
    else {
        zrLog('Illegal gradient type.');
        return;
    }

    if (gradient.global) {
        // x1, x2, y1, y2 in range of 0 to canvas width or height
        dom.setAttribute('gradientUnits', 'userSpaceOnUse');
    }
    else {
        // x1, x2, y1, y2 in range of 0 to 1
        dom.setAttribute('gradientUnits', 'objectBoundingBox');
    }

    // Remove color stops if exists
    dom.innerHTML = '';

    // Add color stops
    var colors = gradient.colorStops;
    for (var i = 0, len = colors.length; i < len; ++i) {
        var stop = this.createElement('stop');
        stop.setAttribute('offset', colors[i].offset * 100 + '%');
        stop.setAttribute('stop-color', colors[i].color);
        dom.appendChild(stop);
    }

    // Store dom element in gradient, to avoid creating multiple
    // dom instances for the same gradient element
    gradient._dom = dom;
};

/**
 * Mark a single gradient to be used
 *
 * @param {Displayable} displayable displayable element
 */
GradientManager.prototype.markUsed = function (displayable) {
    if (displayable.style) {
        var gradient = displayable.style.fill;
        if (gradient && gradient._dom) {
            Definable.prototype.markUsed.call(this, gradient._dom);
        }

        gradient = displayable.style.stroke;
        if (gradient && gradient._dom) {
            Definable.prototype.markUsed.call(this, gradient._dom);
        }
    }
};

/**
 * @file Manages SVG clipPath elements.
 * @author Zhang Wenli
 */

/**
 * Manages SVG clipPath elements.
 *
 * @class
 * @extends Definable
 * @param   {number}     zrId    zrender instance id
 * @param   {SVGElement} svgRoot root of SVG document
 */
function ClippathManager(zrId, svgRoot) {
    Definable.call(this, zrId, svgRoot, 'clipPath', '__clippath_in_use__');
}


inherits(ClippathManager, Definable);


/**
 * Update clipPath.
 *
 * @param {Displayable} displayable displayable element
 */
ClippathManager.prototype.update = function (displayable) {
    var svgEl = this.getSvgElement(displayable);
    if (svgEl) {
        this.updateDom(svgEl, displayable.__clipPaths, false);
    }

    var textEl = this.getTextSvgElement(displayable);
    if (textEl) {
        // Make another clipPath for text, since it's transform
        // matrix is not the same with svgElement
        this.updateDom(textEl, displayable.__clipPaths, true);
    }

    this.markUsed(displayable);
};


/**
 * Create an SVGElement of displayable and create a <clipPath> of its
 * clipPath
 *
 * @param {Displayable} parentEl  parent element
 * @param {ClipPath[]}  clipPaths clipPaths of parent element
 * @param {boolean}     isText    if parent element is Text
 */
ClippathManager.prototype.updateDom = function (
    parentEl,
    clipPaths,
    isText
) {
    if (clipPaths && clipPaths.length > 0) {
        // Has clipPath, create <clipPath> with the first clipPath
        var defs = this.getDefs(true);
        var clipPath = clipPaths[0];
        var clipPathEl;
        var id;

        var dom = isText ? '_textDom' : '_dom';

        if (clipPath[dom]) {
            // Use a dom that is already in <defs>
            id = clipPath[dom].getAttribute('id');
            clipPathEl = clipPath[dom];

            // Use a dom that is already in <defs>
            if (!defs.contains(clipPathEl)) {
                // This happens when set old clipPath that has
                // been previously removed
                defs.appendChild(clipPathEl);
            }
        }
        else {
            // New <clipPath>
            id = 'zr' + this._zrId + '-clip-' + this.nextId;
            ++this.nextId;
            clipPathEl = this.createElement('clipPath');
            clipPathEl.setAttribute('id', id);
            defs.appendChild(clipPathEl);

            clipPath[dom] = clipPathEl;
        }

        // Build path and add to <clipPath>
        var svgProxy = this.getSvgProxy(clipPath);
        if (clipPath.transform
            && clipPath.parent.invTransform
            && !isText
        ) {
            /**
             * If a clipPath has a parent with transform, the transform
             * of parent should not be considered when setting transform
             * of clipPath. So we need to transform back from parent's
             * transform, which is done by multiplying parent's inverse
             * transform.
             */
            // Store old transform
            var transform = Array.prototype.slice.call(
                clipPath.transform
            );

            // Transform back from parent, and brush path
            mul$1(
                clipPath.transform,
                clipPath.parent.invTransform,
                clipPath.transform
            );
            svgProxy.brush(clipPath);

            // Set back transform of clipPath
            clipPath.transform = transform;
        }
        else {
            svgProxy.brush(clipPath);
        }

        var pathEl = this.getSvgElement(clipPath);

        clipPathEl.innerHTML = '';
        /**
         * Use `cloneNode()` here to appendChild to multiple parents,
         * which may happend when Text and other shapes are using the same
         * clipPath. Since Text will create an extra clipPath DOM due to
         * different transform rules.
         */
        clipPathEl.appendChild(pathEl.cloneNode());

        parentEl.setAttribute('clip-path', 'url(#' + id + ')');

        if (clipPaths.length > 1) {
            // Make the other clipPaths recursively
            this.updateDom(clipPathEl, clipPaths.slice(1), isText);
        }
    }
    else {
        // No clipPath
        if (parentEl) {
            parentEl.setAttribute('clip-path', 'none');
        }
    }
};

/**
 * Mark a single clipPath to be used
 *
 * @param {Displayable} displayable displayable element
 */
ClippathManager.prototype.markUsed = function (displayable) {
    var that = this;
    if (displayable.__clipPaths && displayable.__clipPaths.length > 0) {
        each$1(displayable.__clipPaths, function (clipPath) {
            if (clipPath._dom) {
                Definable.prototype.markUsed.call(that, clipPath._dom);
            }
            if (clipPath._textDom) {
                Definable.prototype.markUsed.call(that, clipPath._textDom);
            }
        });
    }
};

/**
 * @file Manages SVG shadow elements.
 * @author Zhang Wenli
 */

/**
 * Manages SVG shadow elements.
 *
 * @class
 * @extends Definable
 * @param   {number}     zrId    zrender instance id
 * @param   {SVGElement} svgRoot root of SVG document
 */
function ShadowManager(zrId, svgRoot) {
    Definable.call(
        this,
        zrId,
        svgRoot,
        ['filter'],
        '__filter_in_use__',
        '_shadowDom'
    );
}


inherits(ShadowManager, Definable);


/**
 * Create new shadow DOM for fill or stroke if not exist,
 * but will not update shadow if exists.
 *
 * @param {SvgElement}  svgElement   SVG element to paint
 * @param {Displayable} displayable  zrender displayable element
 */
ShadowManager.prototype.addWithoutUpdate = function (
    svgElement,
    displayable
) {
    if (displayable && hasShadow(displayable.style)) {
        var style = displayable.style;

        // Create dom in <defs> if not exists
        var dom;
        if (style._shadowDom) {
            // Gradient exists
            dom = style._shadowDom;

            var defs = this.getDefs(true);
            if (!defs.contains(style._shadowDom)) {
                // _shadowDom is no longer in defs, recreate
                this.addDom(dom);
            }
        }
        else {
            // New dom
            dom = this.add(displayable);
        }

        this.markUsed(displayable);

        var id = dom.getAttribute('id');
        svgElement.style.filter = 'url(#' + id + ')';
    }
};


/**
 * Add a new shadow tag in <defs>
 *
 * @param {Displayable} displayable  zrender displayable element
 * @return {SVGFilterElement} created DOM
 */
ShadowManager.prototype.add = function (displayable) {
    var dom = this.createElement('filter');
    var style = displayable.style;

    // Set dom id with shadow id, since each shadow instance
    // will have no more than one dom element.
    // id may exists before for those dirty elements, in which case
    // id should remain the same, and other attributes should be
    // updated.
    style._shadowDomId = style._shadowDomId || this.nextId++;
    dom.setAttribute('id', 'zr' + this._zrId
        + '-shadow-' + style._shadowDomId);

    this.updateDom(displayable, dom);
    this.addDom(dom);

    return dom;
};


/**
 * Update shadow.
 *
 * @param {Displayable} displayable  zrender displayable element
 */
ShadowManager.prototype.update = function (svgElement, displayable) {
    var style = displayable.style;
    if (hasShadow(style)) {
        var that = this;
        Definable.prototype.update.call(this, displayable, function (style) {
            that.updateDom(displayable, style._shadowDom);
        });
    }
    else {
        // Remove shadow
        this.remove(svgElement, style);
    }
};


/**
 * Remove DOM and clear parent filter
 */
ShadowManager.prototype.remove = function (svgElement, style) {
    if (style._shadowDomId != null) {
        this.removeDom(style);
        svgElement.style.filter = '';
    }
};


/**
 * Update shadow dom
 *
 * @param {Displayable} displayable  zrender displayable element
 * @param {SVGFilterElement} dom DOM to update
 */
ShadowManager.prototype.updateDom = function (displayable, dom) {
    var domChild = dom.getElementsByTagName('feDropShadow');
    if (domChild.length === 0) {
        domChild = this.createElement('feDropShadow');
    }
    else {
        domChild = domChild[0];
    }

    var style = displayable.style;
    var scaleX = displayable.scale ? (displayable.scale[0] || 1) : 1;
    var scaleY = displayable.scale ? (displayable.scale[1] || 1) : 1;

    // TODO: textBoxShadowBlur is not supported yet
    var offsetX, offsetY, blur, color;
    if (style.shadowBlur || style.shadowOffsetX || style.shadowOffsetY) {
        offsetX = style.shadowOffsetX || 0;
        offsetY = style.shadowOffsetY || 0;
        blur = style.shadowBlur;
        color = style.shadowColor;
    }
    else if (style.textShadowBlur) {
        offsetX = style.textShadowOffsetX || 0;
        offsetY = style.textShadowOffsetY || 0;
        blur = style.textShadowBlur;
        color = style.textShadowColor;
    }
    else {
        // Remove shadow
        this.removeDom(dom, style);
        return;
    }

    domChild.setAttribute('dx', offsetX / scaleX);
    domChild.setAttribute('dy', offsetY / scaleY);
    domChild.setAttribute('flood-color', color);

    // Divide by two here so that it looks the same as in canvas
    // See: https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-shadowblur
    var stdDx = blur / 2 / scaleX;
    var stdDy = blur / 2 / scaleY;
    var stdDeviation = stdDx + ' ' + stdDy;
    domChild.setAttribute('stdDeviation', stdDeviation);

    // Fix filter clipping problem
    dom.setAttribute('x', '-100%');
    dom.setAttribute('y', '-100%');
    dom.setAttribute('width', Math.ceil(blur / 2 * 200) + '%');
    dom.setAttribute('height', Math.ceil(blur / 2 * 200) + '%');

    dom.appendChild(domChild);

    // Store dom element in shadow, to avoid creating multiple
    // dom instances for the same shadow element
    style._shadowDom = dom;
};

/**
 * Mark a single shadow to be used
 *
 * @param {Displayable} displayable displayable element
 */
ShadowManager.prototype.markUsed = function (displayable) {
    var style = displayable.style;
    if (style && style._shadowDom) {
        Definable.prototype.markUsed.call(this, style._shadowDom);
    }
};

function hasShadow(style) {
    // TODO: textBoxShadowBlur is not supported yet
    return style
        && (style.shadowBlur || style.shadowOffsetX || style.shadowOffsetY
            || style.textShadowBlur || style.textShadowOffsetX
            || style.textShadowOffsetY);
}

/**
 * SVG Painter
 * @module zrender/svg/Painter
 */

function parseInt10$2(val) {
    return parseInt(val, 10);
}

function getSvgProxy(el) {
    if (el instanceof Path) {
        return svgPath;
    }
    else if (el instanceof ZImage) {
        return svgImage;
    }
    else if (el instanceof Text) {
        return svgText;
    }
    else {
        return svgPath;
    }
}

function checkParentAvailable(parent, child) {
    return child && parent && child.parentNode !== parent;
}

function insertAfter(parent, child, prevSibling) {
    if (checkParentAvailable(parent, child) && prevSibling) {
        var nextSibling = prevSibling.nextSibling;
        nextSibling ? parent.insertBefore(child, nextSibling)
            : parent.appendChild(child);
    }
}

function prepend(parent, child) {
    if (checkParentAvailable(parent, child)) {
        var firstChild = parent.firstChild;
        firstChild ? parent.insertBefore(child, firstChild)
            : parent.appendChild(child);
    }
}

function remove$1(parent, child) {
    if (child && parent && child.parentNode === parent) {
        parent.removeChild(child);
    }
}

function getTextSvgElement(displayable) {
    return displayable.__textSvgEl;
}

function getSvgElement(displayable) {
    return displayable.__svgEl;
}

/**
 * @alias module:zrender/svg/Painter
 * @constructor
 * @param {HTMLElement} root 绘图容器
 * @param {module:zrender/Storage} storage
 * @param {Object} opts
 */
var SVGPainter = function (root, storage, opts, zrId) {

    this.root = root;
    this.storage = storage;
    this._opts = opts = extend({}, opts || {});

    var svgRoot = createElement('svg');
    svgRoot.setAttribute('xmlns', 'http://www.w3.org/2000/svg');
    svgRoot.setAttribute('version', '1.1');
    svgRoot.setAttribute('baseProfile', 'full');
    svgRoot.style.cssText = 'user-select:none;position:absolute;left:0;top:0;';

    this.gradientManager = new GradientManager(zrId, svgRoot);
    this.clipPathManager = new ClippathManager(zrId, svgRoot);
    this.shadowManager = new ShadowManager(zrId, svgRoot);

    var viewport = document.createElement('div');
    viewport.style.cssText = 'overflow:hidden;position:relative';

    this._svgRoot = svgRoot;
    this._viewport = viewport;

    root.appendChild(viewport);
    viewport.appendChild(svgRoot);

    this.resize(opts.width, opts.height);

    this._visibleList = [];
};

SVGPainter.prototype = {

    constructor: SVGPainter,

    getType: function () {
        return 'svg';
    },

    getViewportRoot: function () {
        return this._viewport;
    },

    getViewportRootOffset: function () {
        var viewportRoot = this.getViewportRoot();
        if (viewportRoot) {
            return {
                offsetLeft: viewportRoot.offsetLeft || 0,
                offsetTop: viewportRoot.offsetTop || 0
            };
        }
    },

    refresh: function () {

        var list = this.storage.getDisplayList(true);

        this._paintList(list);
    },

    setBackgroundColor: function (backgroundColor) {
        // TODO gradient
        this._viewport.style.background = backgroundColor;
    },

    _paintList: function (list) {
        this.gradientManager.markAllUnused();
        this.clipPathManager.markAllUnused();
        this.shadowManager.markAllUnused();

        var svgRoot = this._svgRoot;
        var visibleList = this._visibleList;
        var listLen = list.length;

        var newVisibleList = [];
        var i;
        for (i = 0; i < listLen; i++) {
            var displayable = list[i];
            var svgProxy = getSvgProxy(displayable);
            var svgElement = getSvgElement(displayable)
                || getTextSvgElement(displayable);
            if (!displayable.invisible) {
                if (displayable.__dirty) {
                    svgProxy && svgProxy.brush(displayable);

                    // Update clipPath
                    this.clipPathManager.update(displayable);

                    // Update gradient and shadow
                    if (displayable.style) {
                        this.gradientManager
                            .update(displayable.style.fill);
                        this.gradientManager
                            .update(displayable.style.stroke);

                        this.shadowManager
                            .update(svgElement, displayable);
                    }

                    displayable.__dirty = false;
                }
                newVisibleList.push(displayable);
            }
        }

        var diff = arrayDiff$1(visibleList, newVisibleList);
        var prevSvgElement;

        // First do remove, in case element moved to the head and do remove
        // after add
        for (i = 0; i < diff.length; i++) {
            var item = diff[i];
            if (item.removed) {
                for (var k = 0; k < item.count; k++) {
                    var displayable = visibleList[item.indices[k]];
                    var svgElement = getSvgElement(displayable);
                    var textSvgElement = getTextSvgElement(displayable);
                    remove$1(svgRoot, svgElement);
                    remove$1(svgRoot, textSvgElement);
                }
            }
        }
        for (i = 0; i < diff.length; i++) {
            var item = diff[i];
            if (item.added) {
                for (var k = 0; k < item.count; k++) {
                    var displayable = newVisibleList[item.indices[k]];
                    var svgElement = getSvgElement(displayable);
                    var textSvgElement = getTextSvgElement(displayable);
                    prevSvgElement
                        ? insertAfter(svgRoot, svgElement, prevSvgElement)
                        : prepend(svgRoot, svgElement);
                    if (svgElement) {
                        insertAfter(svgRoot, textSvgElement, svgElement);
                    }
                    else if (prevSvgElement) {
                        insertAfter(
                            svgRoot, textSvgElement, prevSvgElement
                        );
                    }
                    else {
                        prepend(svgRoot, textSvgElement);
                    }
                    // Insert text
                    insertAfter(svgRoot, textSvgElement, svgElement);
                    prevSvgElement = textSvgElement || svgElement
                        || prevSvgElement;

                    this.gradientManager
                        .addWithoutUpdate(svgElement, displayable);
                    this.shadowManager
                        .addWithoutUpdate(prevSvgElement, displayable);
                    this.clipPathManager.markUsed(displayable);
                }
            }
            else if (!item.removed) {
                for (var k = 0; k < item.count; k++) {
                    var displayable = newVisibleList[item.indices[k]];
                    prevSvgElement
                        = svgElement
                        = getTextSvgElement(displayable)
                        || getSvgElement(displayable)
                        || prevSvgElement;

                    this.gradientManager.markUsed(displayable);
                    this.gradientManager
                        .addWithoutUpdate(svgElement, displayable);

                    this.shadowManager.markUsed(displayable);
                    this.shadowManager
                        .addWithoutUpdate(svgElement, displayable);

                    this.clipPathManager.markUsed(displayable);
                }
            }
        }

        this.gradientManager.removeUnused();
        this.clipPathManager.removeUnused();
        this.shadowManager.removeUnused();

        this._visibleList = newVisibleList;
    },

    _getDefs: function (isForceCreating) {
        var svgRoot = this._svgRoot;
        var defs = this._svgRoot.getElementsByTagName('defs');
        if (defs.length === 0) {
            // Not exist
            if (isForceCreating) {
                var defs = svgRoot.insertBefore(
                    createElement('defs'), // Create new tag
                    svgRoot.firstChild // Insert in the front of svg
                );
                if (!defs.contains) {
                    // IE doesn't support contains method
                    defs.contains = function (el) {
                        var children = defs.children;
                        if (!children) {
                            return false;
                        }
                        for (var i = children.length - 1; i >= 0; --i) {
                            if (children[i] === el) {
                                return true;
                            }
                        }
                        return false;
                    };
                }
                return defs;
            }
            else {
                return null;
            }
        }
        else {
            return defs[0];
        }
    },

    resize: function (width, height) {
        var viewport = this._viewport;
        // FIXME Why ?
        viewport.style.display = 'none';

        // Save input w/h
        var opts = this._opts;
        width != null && (opts.width = width);
        height != null && (opts.height = height);

        width = this._getSize(0);
        height = this._getSize(1);

        viewport.style.display = '';

        if (this._width !== width || this._height !== height) {
            this._width = width;
            this._height = height;

            var viewportStyle = viewport.style;
            viewportStyle.width = width + 'px';
            viewportStyle.height = height + 'px';

            var svgRoot = this._svgRoot;
            // Set width by 'svgRoot.width = width' is invalid
            svgRoot.setAttribute('width', width);
            svgRoot.setAttribute('height', height);
        }
    },

    /**
     * 获取绘图区域宽度
     */
    getWidth: function () {
        return this._width;
    },

    /**
     * 获取绘图区域高度
     */
    getHeight: function () {
        return this._height;
    },

    _getSize: function (whIdx) {
        var opts = this._opts;
        var wh = ['width', 'height'][whIdx];
        var cwh = ['clientWidth', 'clientHeight'][whIdx];
        var plt = ['paddingLeft', 'paddingTop'][whIdx];
        var prb = ['paddingRight', 'paddingBottom'][whIdx];

        if (opts[wh] != null && opts[wh] !== 'auto') {
            return parseFloat(opts[wh]);
        }

        var root = this.root;
        // IE8 does not support getComputedStyle, but it use VML.
        var stl = document.defaultView.getComputedStyle(root);

        return (
            (root[cwh] || parseInt10$2(stl[wh]) || parseInt10$2(root.style[wh]))
            - (parseInt10$2(stl[plt]) || 0)
            - (parseInt10$2(stl[prb]) || 0)
        ) | 0;
    },

    dispose: function () {
        this.root.innerHTML = '';

        this._svgRoot
            = this._viewport
            = this.storage
            = null;
    },

    clear: function () {
        if (this._viewport) {
            this.root.removeChild(this._viewport);
        }
    },

    pathToDataUrl: function () {
        this.refresh();
        var html = this._svgRoot.outerHTML;
        return 'data:image/svg+xml;charset=UTF-8,' + html;
    }
};

// Not supported methods
function createMethodNotSupport$1(method) {
    return function () {
        zrLog('In SVG mode painter not support method "' + method + '"');
    };
}

// Unsuppoted methods
each$1([
    'getLayer', 'insertLayer', 'eachLayer', 'eachBuiltinLayer',
    'eachOtherLayer', 'getLayers', 'modLayer', 'delLayer', 'clearLayer',
    'toDataURL', 'pathToImage'
], function (name) {
    SVGPainter.prototype[name] = createMethodNotSupport$1(name);
});

registerPainter('svg', SVGPainter);

// Import all charts and components

exports.version = version;
exports.dependencies = dependencies;
exports.PRIORITY = PRIORITY;
exports.init = init;
exports.connect = connect;
exports.disConnect = disConnect;
exports.disconnect = disconnect;
exports.dispose = dispose;
exports.getInstanceByDom = getInstanceByDom;
exports.getInstanceById = getInstanceById;
exports.registerTheme = registerTheme;
exports.registerPreprocessor = registerPreprocessor;
exports.registerProcessor = registerProcessor;
exports.registerPostUpdate = registerPostUpdate;
exports.registerAction = registerAction;
exports.registerCoordinateSystem = registerCoordinateSystem;
exports.getCoordinateSystemDimensions = getCoordinateSystemDimensions;
exports.registerLayout = registerLayout;
exports.registerVisual = registerVisual;
exports.registerLoading = registerLoading;
exports.extendComponentModel = extendComponentModel;
exports.extendComponentView = extendComponentView;
exports.extendSeriesModel = extendSeriesModel;
exports.extendChartView = extendChartView;
exports.setCanvasCreator = setCanvasCreator;
exports.registerMap = registerMap;
exports.getMap = getMap;
exports.dataTool = dataTool;
exports.zrender = zrender;
exports.graphic = graphic;
exports.number = number;
exports.format = format;
exports.throttle = throttle;
exports.helper = helper;
exports.matrix = matrix;
exports.vector = vector;
exports.color = color;
exports.parseGeoJSON = parseGeoJson$1;
exports.parseGeoJson = parseGeoJson;
exports.util = ecUtil;
exports.List = List;
exports.Model = Model;
exports.Axis = Axis;
exports.env = env$1;

})));
//# sourceMappingURL=echarts.js.map
</ol></code></pre></td>
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  1 Commits (268aa4ebe3d4f2a8812fc8cd05abd10902763e27)
  
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          <img class="ui avatar image" src="//1.gravatar.com/avatar/44538b8d5c5dc4e3f585ce127d425556" alt=""/>&nbsp;&nbsp;Brightcells
          
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        <td class="sha"><a rel="nofollow" class="ui green sha label" href="/Kodo/kodo/commit/f6a88c632b1d5ada036e16e92ec51ec3584401ce ">f6a88c632b </a></td>
        <td class="message"><span class="text truncate">add group_default_avatar field for GroupInfo</span></td>
        <td class="date"><span class="time-since" title="Thu, 03 Mar 2016 21:39:26 CST">10 anni fa</span></td>
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