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607 lines
14 KiB
607 lines
14 KiB
/**
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* @license Highcharts JS v4.0.1 (2014-04-24)
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*
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* (c) 2011-2014 Torstein Honsi
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*
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* License: www.highcharts.com/license
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*/
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/*global HighchartsAdapter*/
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(function (Highcharts) {
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var UNDEFINED,
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Axis = Highcharts.Axis,
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Chart = Highcharts.Chart,
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Color = Highcharts.Color,
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Legend = Highcharts.Legend,
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LegendSymbolMixin = Highcharts.LegendSymbolMixin,
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Series = Highcharts.Series,
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defaultOptions = Highcharts.getOptions(),
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each = Highcharts.each,
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extend = Highcharts.extend,
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extendClass = Highcharts.extendClass,
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merge = Highcharts.merge,
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pick = Highcharts.pick,
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numberFormat = Highcharts.numberFormat,
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seriesTypes = Highcharts.seriesTypes,
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wrap = Highcharts.wrap,
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noop = function () {};
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/**
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* The ColorAxis object for inclusion in gradient legends
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*/
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var ColorAxis = Highcharts.ColorAxis = function () {
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this.isColorAxis = true;
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this.init.apply(this, arguments);
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};
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extend(ColorAxis.prototype, Axis.prototype);
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extend(ColorAxis.prototype, {
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defaultColorAxisOptions: {
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lineWidth: 0,
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gridLineWidth: 1,
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tickPixelInterval: 72,
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startOnTick: true,
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endOnTick: true,
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offset: 0,
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marker: { // docs: use another name?
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animation: {
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duration: 50
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},
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color: 'gray',
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width: 0.01
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},
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labels: {
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overflow: 'justify'
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},
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minColor: '#EFEFFF',
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maxColor: '#003875',
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tickLength: 5
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},
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init: function (chart, userOptions) {
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var horiz = chart.options.legend.layout !== 'vertical',
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options;
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// Build the options
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options = merge(this.defaultColorAxisOptions, {
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side: horiz ? 2 : 1,
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reversed: !horiz
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}, userOptions, {
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isX: horiz,
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opposite: !horiz,
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showEmpty: false,
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title: null,
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isColor: true
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});
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Axis.prototype.init.call(this, chart, options);
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// Base init() pushes it to the xAxis array, now pop it again
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//chart[this.isXAxis ? 'xAxis' : 'yAxis'].pop();
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// Prepare data classes
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if (userOptions.dataClasses) {
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this.initDataClasses(userOptions);
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}
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this.initStops(userOptions);
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// Override original axis properties
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this.isXAxis = true;
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this.horiz = horiz;
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this.zoomEnabled = false;
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},
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/*
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* Return an intermediate color between two colors, according to pos where 0
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* is the from color and 1 is the to color
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*/
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tweenColors: function (from, to, pos) {
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// Check for has alpha, because rgba colors perform worse due to lack of
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// support in WebKit.
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var hasAlpha = (to.rgba[3] !== 1 || from.rgba[3] !== 1);
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return (hasAlpha ? 'rgba(' : 'rgb(') +
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Math.round(to.rgba[0] + (from.rgba[0] - to.rgba[0]) * (1 - pos)) + ',' +
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Math.round(to.rgba[1] + (from.rgba[1] - to.rgba[1]) * (1 - pos)) + ',' +
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Math.round(to.rgba[2] + (from.rgba[2] - to.rgba[2]) * (1 - pos)) +
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(hasAlpha ? (',' + (to.rgba[3] + (from.rgba[3] - to.rgba[3]) * (1 - pos))) : '') + ')';
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},
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initDataClasses: function (userOptions) {
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var axis = this,
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chart = this.chart,
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dataClasses,
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colorCounter = 0,
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options = this.options;
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this.dataClasses = dataClasses = [];
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each(userOptions.dataClasses, function (dataClass, i) {
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var colors;
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dataClass = merge(dataClass);
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dataClasses.push(dataClass);
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if (!dataClass.color) {
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if (options.dataClassColor === 'category') {
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colors = chart.options.colors;
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dataClass.color = colors[colorCounter++];
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// loop back to zero
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if (colorCounter === colors.length) {
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colorCounter = 0;
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}
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} else {
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dataClass.color = axis.tweenColors(Color(options.minColor), Color(options.maxColor), i / (userOptions.dataClasses.length - 1));
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}
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}
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});
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},
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initStops: function (userOptions) {
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this.stops = userOptions.stops || [
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[0, this.options.minColor],
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[1, this.options.maxColor]
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];
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each(this.stops, function (stop) {
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stop.color = Color(stop[1]);
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});
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},
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/**
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* Extend the setOptions method to process extreme colors and color
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* stops.
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*/
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setOptions: function (userOptions) {
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Axis.prototype.setOptions.call(this, userOptions);
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this.options.crosshair = this.options.marker;
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this.coll = 'colorAxis';
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},
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setAxisSize: function () {
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var symbol = this.legendSymbol,
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chart = this.chart,
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x,
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y,
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width,
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height;
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if (symbol) {
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this.left = x = symbol.attr('x');
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this.top = y = symbol.attr('y');
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this.width = width = symbol.attr('width');
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this.height = height = symbol.attr('height');
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this.right = chart.chartWidth - x - width;
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this.bottom = chart.chartHeight - y - height;
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this.len = this.horiz ? width : height;
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this.pos = this.horiz ? x : y;
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}
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},
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/**
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* Translate from a value to a color
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*/
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toColor: function (value, point) {
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var pos,
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stops = this.stops,
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from,
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to,
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color,
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dataClasses = this.dataClasses,
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dataClass,
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i;
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if (dataClasses) {
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i = dataClasses.length;
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while (i--) {
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dataClass = dataClasses[i];
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from = dataClass.from;
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to = dataClass.to;
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if ((from === UNDEFINED || value >= from) && (to === UNDEFINED || value <= to)) {
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color = dataClass.color;
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if (point) {
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point.dataClass = i;
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}
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break;
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}
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}
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} else {
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if (this.isLog) {
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value = this.val2lin(value);
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}
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pos = 1 - ((this.max - value) / (this.max - this.min));
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i = stops.length;
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while (i--) {
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if (pos > stops[i][0]) {
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break;
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}
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}
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from = stops[i] || stops[i + 1];
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to = stops[i + 1] || from;
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// The position within the gradient
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pos = 1 - (to[0] - pos) / ((to[0] - from[0]) || 1);
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color = this.tweenColors(
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from.color,
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to.color,
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pos
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);
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}
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return color;
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},
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getOffset: function () {
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var group = this.legendGroup;
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if (group) {
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Axis.prototype.getOffset.call(this);
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if (!this.axisGroup.parentGroup) {
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// Move the axis elements inside the legend group
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this.axisGroup.add(group);
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this.gridGroup.add(group);
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this.labelGroup.add(group);
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this.added = true;
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}
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}
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},
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/**
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* Create the color gradient
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*/
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setLegendColor: function () {
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var grad,
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horiz = this.horiz,
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options = this.options;
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grad = horiz ? [0, 0, 1, 0] : [0, 0, 0, 1];
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this.legendColor = {
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linearGradient: { x1: grad[0], y1: grad[1], x2: grad[2], y2: grad[3] },
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stops: options.stops || [
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[0, options.minColor],
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[1, options.maxColor]
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]
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};
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},
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/**
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* The color axis appears inside the legend and has its own legend symbol
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*/
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drawLegendSymbol: function (legend, item) {
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var padding = legend.padding,
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legendOptions = legend.options,
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horiz = this.horiz,
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box,
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width = pick(legendOptions.symbolWidth, horiz ? 200 : 12),
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height = pick(legendOptions.symbolHeight, horiz ? 12 : 200),
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labelPadding = pick(legendOptions.labelPadding, horiz ? 10 : 30);
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this.setLegendColor();
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// Create the gradient
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item.legendSymbol = this.chart.renderer.rect(
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0,
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legend.baseline - 11,
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width,
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height
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).attr({
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zIndex: 1
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}).add(item.legendGroup);
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box = item.legendSymbol.getBBox();
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// Set how much space this legend item takes up
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this.legendItemWidth = width + padding + (horiz ? 0 : labelPadding);
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this.legendItemHeight = height + padding + (horiz ? labelPadding : 0);
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},
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/**
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* Fool the legend
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*/
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setState: noop,
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visible: true,
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setVisible: noop,
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getSeriesExtremes: function () {
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var series;
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if (this.series.length) {
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series = this.series[0];
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this.dataMin = series.valueMin;
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this.dataMax = series.valueMax;
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}
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},
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drawCrosshair: function (e, point) {
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var newCross = !this.cross,
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plotX = point && point.plotX,
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plotY = point && point.plotY,
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crossPos,
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axisPos = this.pos,
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axisLen = this.len;
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if (point) {
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crossPos = this.toPixels(point.value);
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if (crossPos < axisPos) {
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crossPos = axisPos - 2;
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} else if (crossPos > axisPos + axisLen) {
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crossPos = axisPos + axisLen + 2;
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}
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point.plotX = crossPos;
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point.plotY = this.len - crossPos;
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Axis.prototype.drawCrosshair.call(this, e, point);
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point.plotX = plotX;
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point.plotY = plotY;
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if (!newCross && this.cross) {
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this.cross
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.attr({
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fill: this.crosshair.color
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})
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.add(this.labelGroup);
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}
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}
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},
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getPlotLinePath: function (a, b, c, d, pos) {
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if (pos) { // crosshairs only
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return this.horiz ?
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['M', pos - 4, this.top - 6, 'L', pos + 4, this.top - 6, pos, this.top, 'Z'] :
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['M', this.left, pos, 'L', this.left - 6, pos + 6, this.left - 6, pos - 6, 'Z'];
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} else {
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return Axis.prototype.getPlotLinePath.call(this, a, b, c, d);
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}
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},
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update: function (newOptions, redraw) {
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each(this.series, function (series) {
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series.isDirtyData = true; // Needed for Axis.update when choropleth colors change
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});
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Axis.prototype.update.call(this, newOptions, redraw);
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if (this.legendItem) {
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this.setLegendColor();
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this.chart.legend.colorizeItem(this, true);
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}
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},
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/**
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* Get the legend item symbols for data classes
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*/
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getDataClassLegendSymbols: function () {
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var axis = this,
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chart = this.chart,
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legendItems = [],
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legendOptions = chart.options.legend,
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valueDecimals = legendOptions.valueDecimals,
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valueSuffix = legendOptions.valueSuffix || '',
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name;
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each(this.dataClasses, function (dataClass, i) {
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var vis = true,
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from = dataClass.from,
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to = dataClass.to;
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// Assemble the default name. This can be overridden by legend.options.labelFormatter
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name = '';
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if (from === UNDEFINED) {
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name = '< ';
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} else if (to === UNDEFINED) {
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name = '> ';
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}
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if (from !== UNDEFINED) {
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name += numberFormat(from, valueDecimals) + valueSuffix;
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}
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if (from !== UNDEFINED && to !== UNDEFINED) {
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name += ' - ';
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}
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if (to !== UNDEFINED) {
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name += numberFormat(to, valueDecimals) + valueSuffix;
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}
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// Add a mock object to the legend items
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legendItems.push(extend({
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chart: chart,
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name: name,
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options: {},
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drawLegendSymbol: LegendSymbolMixin.drawRectangle,
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visible: true,
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setState: noop,
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setVisible: function () {
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vis = this.visible = !vis;
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each(axis.series, function (series) {
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each(series.points, function (point) {
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if (point.dataClass === i) {
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point.setVisible(vis);
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}
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});
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});
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chart.legend.colorizeItem(this, vis);
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}
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}, dataClass));
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});
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return legendItems;
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},
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name: '' // Prevents 'undefined' in legend in IE8
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});
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/**
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* Extend the chart getAxes method to also get the color axis
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*/
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wrap(Chart.prototype, 'getAxes', function (proceed) {
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var options = this.options,
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colorAxisOptions = options.colorAxis;
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proceed.call(this);
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this.colorAxis = [];
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if (colorAxisOptions) {
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proceed = new ColorAxis(this, colorAxisOptions); // Fake assignment for jsLint
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}
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});
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/**
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* Wrap the legend getAllItems method to add the color axis. This also removes the
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* axis' own series to prevent them from showing up individually.
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*/
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wrap(Legend.prototype, 'getAllItems', function (proceed) {
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var allItems = [],
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colorAxis = this.chart.colorAxis[0];
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if (colorAxis) {
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// Data classes
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if (colorAxis.options.dataClasses) {
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allItems = allItems.concat(colorAxis.getDataClassLegendSymbols());
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// Gradient legend
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} else {
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// Add this axis on top
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allItems.push(colorAxis);
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}
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// Don't add the color axis' series
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each(colorAxis.series, function (series) {
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series.options.showInLegend = false;
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});
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}
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return allItems.concat(proceed.call(this));
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});/**
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* Mixin for maps and heatmaps
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*/
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var colorSeriesMixin = {
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pointAttrToOptions: { // mapping between SVG attributes and the corresponding options
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stroke: 'borderColor',
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'stroke-width': 'borderWidth',
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fill: 'color',
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dashstyle: 'dashStyle'
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},
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pointArrayMap: ['value'],
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axisTypes: ['xAxis', 'yAxis', 'colorAxis'],
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optionalAxis: 'colorAxis',
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trackerGroups: ['group', 'markerGroup', 'dataLabelsGroup'],
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getSymbol: noop,
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parallelArrays: ['x', 'y', 'value'],
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/**
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* In choropleth maps, the color is a result of the value, so this needs translation too
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*/
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translateColors: function () {
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var series = this,
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nullColor = this.options.nullColor,
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colorAxis = this.colorAxis;
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each(this.data, function (point) {
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var value = point.value,
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color;
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color = value === null ? nullColor : colorAxis ? colorAxis.toColor(value, point) : (point.color) || series.color;
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if (color) {
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point.color = color;
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}
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});
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}
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};
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/**
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* Extend the default options with map options
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*/
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defaultOptions.plotOptions.heatmap = merge(defaultOptions.plotOptions.scatter, {
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animation: false,
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borderWidth: 0,
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nullColor: '#F8F8F8',
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dataLabels: {
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format: '{point.value}',
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verticalAlign: 'middle',
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crop: false,
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overflow: false,
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style: {
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color: 'white',
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fontWeight: 'bold',
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textShadow: '0 0 5px black'
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}
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},
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marker: null,
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tooltip: {
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pointFormat: '{point.x}, {point.y}: {point.value}<br/>'
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},
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states: {
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normal: {
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animation: true
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},
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hover: {
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brightness: 0.2
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}
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}
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});
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// The Heatmap series type
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seriesTypes.heatmap = extendClass(seriesTypes.scatter, merge(colorSeriesMixin, {
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type: 'heatmap',
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pointArrayMap: ['y', 'value'],
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hasPointSpecificOptions: true,
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supportsDrilldown: true,
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getExtremesFromAll: true,
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init: function () {
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seriesTypes.scatter.prototype.init.apply(this, arguments);
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this.pointRange = this.options.colsize || 1;
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this.yAxis.axisPointRange = this.options.rowsize || 1; // general point range
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},
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translate: function () {
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var series = this,
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options = series.options,
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xAxis = series.xAxis,
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yAxis = series.yAxis;
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series.generatePoints();
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each(series.points, function (point) {
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var xPad = (options.colsize || 1) / 2,
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yPad = (options.rowsize || 1) / 2,
|
|
x1 = Math.round(xAxis.len - xAxis.translate(point.x - xPad, 0, 1, 0, 1)),
|
|
x2 = Math.round(xAxis.len - xAxis.translate(point.x + xPad, 0, 1, 0, 1)),
|
|
y1 = Math.round(yAxis.translate(point.y - yPad, 0, 1, 0, 1)),
|
|
y2 = Math.round(yAxis.translate(point.y + yPad, 0, 1, 0, 1));
|
|
|
|
// Set plotX and plotY for use in K-D-TreeView and more
|
|
point.plotX = (x1 + x2) / 2;
|
|
point.plotY = (y1 + y2) / 2;
|
|
|
|
point.shapeType = 'rect';
|
|
point.shapeArgs = {
|
|
x: Math.min(x1, x2),
|
|
y: Math.min(y1, y2),
|
|
width: Math.abs(x2 - x1),
|
|
height: Math.abs(y2 - y1)
|
|
};
|
|
});
|
|
|
|
series.translateColors();
|
|
},
|
|
drawPoints: seriesTypes.column.prototype.drawPoints,
|
|
animate: noop,
|
|
getBox: noop,
|
|
drawLegendSymbol: LegendSymbolMixin.drawRectangle,
|
|
|
|
getExtremes: function () {
|
|
// Get the extremes from the value data
|
|
Series.prototype.getExtremes.call(this, this.valueData);
|
|
this.valueMin = this.dataMin;
|
|
this.valueMax = this.dataMax;
|
|
|
|
// Get the extremes from the y data
|
|
Series.prototype.getExtremes.call(this);
|
|
}
|
|
|
|
}));
|
|
|
|
|
|
}(Highcharts));
|