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File: FrontEndScripts/libs/highcharts/modules/heatmap.src.js

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File: FrontEndScripts/libs/highcharts/modules/heatmap.src.js
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/** * @license Highcharts JS v4.2.3 (2016-02-08) * * (c) 2011-2016 Torstein Honsi * * License: www.highcharts.com/license */ /* eslint indent: [2, 4] */ (function (factory) { if (typeof module === 'object' && module.exports) { module.exports = factory; } else { factory(Highcharts); } }(function (Highcharts) { var UNDEFINED, Axis = Highcharts.Axis, Chart = Highcharts.Chart, Color = Highcharts.Color, Legend = Highcharts.Legend, LegendSymbolMixin = Highcharts.LegendSymbolMixin, Series = Highcharts.Series, Point = Highcharts.Point, defaultOptions = Highcharts.getOptions(), each = Highcharts.each, extend = Highcharts.extend, extendClass = Highcharts.extendClass, merge = Highcharts.merge, pick = Highcharts.pick, seriesTypes = Highcharts.seriesTypes, wrap = Highcharts.wrap, noop = function () {}; /** * The ColorAxis object for inclusion in gradient legends */ var ColorAxis = Highcharts.ColorAxis = function () { this.isColorAxis = true; this.init.apply(this, arguments); }; extend(ColorAxis.prototype, Axis.prototype); extend(ColorAxis.prototype, { defaultColorAxisOptions: { lineWidth: 0, minPadding: 0, maxPadding: 0, gridLineWidth: 1, tickPixelInterval: 72, startOnTick: true, endOnTick: true, offset: 0, marker: { animation: { duration: 50 }, color: 'gray', width: 0.01 }, labels: { overflow: 'justify' }, minColor: '#EFEFFF', maxColor: '#003875', tickLength: 5 }, init: function (chart, userOptions) { var horiz = chart.options.legend.layout !== 'vertical', options; // Build the options options = merge(this.defaultColorAxisOptions, { side: horiz ? 2 : 1, reversed: !horiz }, userOptions, { opposite: !horiz, showEmpty: false, title: null, isColor: true }); Axis.prototype.init.call(this, chart, options); // Base init() pushes it to the xAxis array, now pop it again //chart[this.isXAxis ? 'xAxis' : 'yAxis'].pop(); // Prepare data classes if (userOptions.dataClasses) { this.initDataClasses(userOptions); } this.initStops(userOptions); // Override original axis properties this.horiz = horiz; this.zoomEnabled = false; }, /* * Return an intermediate color between two colors, according to pos where 0 * is the from color and 1 is the to color. * NOTE: Changes here should be copied * to the same function in drilldown.src.js and solid-gauge-src.js. */ tweenColors: function (from, to, pos) { // Check for has alpha, because rgba colors perform worse due to lack of // support in WebKit. var hasAlpha, ret; // Unsupported color, return to-color (#3920) if (!to.rgba.length || !from.rgba.length) { ret = to.input || 'none'; // Interpolate } else { from = from.rgba; to = to.rgba; hasAlpha = (to[3] !== 1 || from[3] !== 1); ret = (hasAlpha ? 'rgba(' : 'rgb(') + Math.round(to[0] + (from[0] - to[0]) * (1 - pos)) + ',' + Math.round(to[1] + (from[1] - to[1]) * (1 - pos)) + ',' + Math.round(to[2] + (from[2] - to[2]) * (1 - pos)) + (hasAlpha ? (',' + (to[3] + (from[3] - to[3]) * (1 - pos))) : '') + ')'; } return ret; }, initDataClasses: function (userOptions) { var axis = this, chart = this.chart, dataClasses, colorCounter = 0, options = this.options, len = userOptions.dataClasses.length; this.dataClasses = dataClasses = []; this.legendItems = []; each(userOptions.dataClasses, function (dataClass, i) { var colors; dataClass = merge(dataClass); dataClasses.push(dataClass); if (!dataClass.color) { if (options.dataClassColor === 'category') { colors = chart.options.colors; dataClass.color = colors[colorCounter++]; // loop back to zero if (colorCounter === colors.length) { colorCounter = 0; } } else { dataClass.color = axis.tweenColors( Color(options.minColor), Color(options.maxColor), len < 2 ? 0.5 : i / (len - 1) // #3219 ); } } }); }, initStops: function (userOptions) { this.stops = userOptions.stops || [ [0, this.options.minColor], [1, this.options.maxColor] ]; each(this.stops, function (stop) { stop.color = Color(stop[1]); }); }, /** * Extend the setOptions method to process extreme colors and color * stops. */ setOptions: function (userOptions) { Axis.prototype.setOptions.call(this, userOptions); this.options.crosshair = this.options.marker; this.coll = 'colorAxis'; }, setAxisSize: function () { var symbol = this.legendSymbol, chart = this.chart, x, y, width, height; if (symbol) { this.left = x = symbol.attr('x'); this.top = y = symbol.attr('y'); this.width = width = symbol.attr('width'); this.height = height = symbol.attr('height'); this.right = chart.chartWidth - x - width; this.bottom = chart.chartHeight - y - height; this.len = this.horiz ? width : height; this.pos = this.horiz ? x : y; } }, /** * Translate from a value to a color */ toColor: function (value, point) { var pos, stops = this.stops, from, to, color, dataClasses = this.dataClasses, dataClass, i; if (dataClasses) { i = dataClasses.length; while (i--) { dataClass = dataClasses[i]; from = dataClass.from; to = dataClass.to; if ((from === UNDEFINED || value >= from) && (to === UNDEFINED || value <= to)) { color = dataClass.color; if (point) { point.dataClass = i; } break; } } } else { if (this.isLog) { value = this.val2lin(value); } pos = 1 - ((this.max - value) / ((this.max - this.min) || 1)); i = stops.length; while (i--) { if (pos > stops[i][0]) { break; } } from = stops[i] || stops[i + 1]; to = stops[i + 1] || from; // The position within the gradient pos = 1 - (to[0] - pos) / ((to[0] - from[0]) || 1); color = this.tweenColors( from.color, to.color, pos ); } return color; }, /** * Override the getOffset method to add the whole axis groups inside the legend. */ getOffset: function () { var group = this.legendGroup, sideOffset = this.chart.axisOffset[this.side]; if (group) { // Hook for the getOffset method to add groups to this parent group this.axisParent = group; // Call the base Axis.prototype.getOffset.call(this); // First time only if (!this.added) { this.added = true; this.labelLeft = 0; this.labelRight = this.width; } // Reset it to avoid color axis reserving space this.chart.axisOffset[this.side] = sideOffset; } }, /** * Create the color gradient */ setLegendColor: function () { var grad, horiz = this.horiz, options = this.options, reversed = this.reversed, one = reversed ? 1 : 0, zero = reversed ? 0 : 1; grad = horiz ? [one, 0, zero, 0] : [0, zero, 0, one]; // #3190 this.legendColor = { linearGradient: { x1: grad[0], y1: grad[1], x2: grad[2], y2: grad[3] }, stops: options.stops || [ [0, options.minColor], [1, options.maxColor] ] }; }, /** * The color axis appears inside the legend and has its own legend symbol */ drawLegendSymbol: function (legend, item) { var padding = legend.padding, legendOptions = legend.options, horiz = this.horiz, width = pick(legendOptions.symbolWidth, horiz ? 200 : 12), height = pick(legendOptions.symbolHeight, horiz ? 12 : 200), labelPadding = pick(legendOptions.labelPadding, horiz ? 16 : 30), itemDistance = pick(legendOptions.itemDistance, 10); this.setLegendColor(); // Create the gradient item.legendSymbol = this.chart.renderer.rect( 0, legend.baseline - 11, width, height ).attr({ zIndex: 1 }).add(item.legendGroup); // Set how much space this legend item takes up this.legendItemWidth = width + padding + (horiz ? itemDistance : labelPadding); this.legendItemHeight = height + padding + (horiz ? labelPadding : 0); }, /** * Fool the legend */ setState: noop, visible: true, setVisible: noop, getSeriesExtremes: function () { var series; if (this.series.length) { series = this.series[0]; this.dataMin = series.valueMin; this.dataMax = series.valueMax; } }, drawCrosshair: function (e, point) { var plotX = point && point.plotX, plotY = point && point.plotY, crossPos, axisPos = this.pos, axisLen = this.len; if (point) { crossPos = this.toPixels(point[point.series.colorKey]); if (crossPos < axisPos) { crossPos = axisPos - 2; } else if (crossPos > axisPos + axisLen) { crossPos = axisPos + axisLen + 2; } point.plotX = crossPos; point.plotY = this.len - crossPos; Axis.prototype.drawCrosshair.call(this, e, point); point.plotX = plotX; point.plotY = plotY; if (this.cross) { this.cross .attr({ fill: this.crosshair.color }) .add(this.legendGroup); } } }, getPlotLinePath: function (a, b, c, d, pos) { return typeof pos === 'number' ? // crosshairs only // #3969 pos can be 0 !! (this.horiz ? ['M', pos - 4, this.top - 6, 'L', pos + 4, this.top - 6, pos, this.top, 'Z'] : ['M', this.left, pos, 'L', this.left - 6, pos + 6, this.left - 6, pos - 6, 'Z'] ) : Axis.prototype.getPlotLinePath.call(this, a, b, c, d); }, update: function (newOptions, redraw) { var chart = this.chart, legend = chart.legend; each(this.series, function (series) { series.isDirtyData = true; // Needed for Axis.update when choropleth colors change }); // When updating data classes, destroy old items and make sure new ones are created (#3207) if (newOptions.dataClasses && legend.allItems) { each(legend.allItems, function (item) { if (item.isDataClass) { item.legendGroup.destroy(); } }); chart.isDirtyLegend = true; } // Keep the options structure updated for export. Unlike xAxis and yAxis, the colorAxis is // not an array. (#3207) chart.options[this.coll] = merge(this.userOptions, newOptions); Axis.prototype.update.call(this, newOptions, redraw); if (this.legendItem) { this.setLegendColor(); legend.colorizeItem(this, true); } }, /** * Get the legend item symbols for data classes */ getDataClassLegendSymbols: function () { var axis = this, chart = this.chart, legendItems = this.legendItems, legendOptions = chart.options.legend, valueDecimals = legendOptions.valueDecimals, valueSuffix = legendOptions.valueSuffix || '', name; if (!legendItems.length) { each(this.dataClasses, function (dataClass, i) { var vis = true, from = dataClass.from, to = dataClass.to; // Assemble the default name. This can be overridden by legend.options.labelFormatter name = ''; if (from === UNDEFINED) { name = '< '; } else if (to === UNDEFINED) { name = '> '; } if (from !== UNDEFINED) { name += Highcharts.numberFormat(from, valueDecimals) + valueSuffix; } if (from !== UNDEFINED && to !== UNDEFINED) { name += ' - '; } if (to !== UNDEFINED) { name += Highcharts.numberFormat(to, valueDecimals) + valueSuffix; } // Add a mock object to the legend items legendItems.push(extend({ chart: chart, name: name, options: {}, drawLegendSymbol: LegendSymbolMixin.drawRectangle, visible: true, setState: noop, isDataClass: true, setVisible: function () { vis = this.visible = !vis; each(axis.series, function (series) { each(series.points, function (point) { if (point.dataClass === i) { point.setVisible(vis); } }); }); chart.legend.colorizeItem(this, vis); } }, dataClass)); }); } return legendItems; }, name: '' // Prevents 'undefined' in legend in IE8 }); /** * Handle animation of the color attributes directly */ each(['fill', 'stroke'], function (prop) { Highcharts.Fx.prototype[prop + 'Setter'] = function () { this.elem.attr(prop, ColorAxis.prototype.tweenColors(Color(this.start), Color(this.end), this.pos)); }; }); /** * Extend the chart getAxes method to also get the color axis */ wrap(Chart.prototype, 'getAxes', function (proceed) { var options = this.options, colorAxisOptions = options.colorAxis; proceed.call(this); this.colorAxis = []; if (colorAxisOptions) { new ColorAxis(this, colorAxisOptions); // eslint-disable-line no-new } }); /** * Wrap the legend getAllItems method to add the color axis. This also removes the * axis' own series to prevent them from showing up individually. */ wrap(Legend.prototype, 'getAllItems', function (proceed) { var allItems = [], colorAxis = this.chart.colorAxis[0]; if (colorAxis) { // Data classes if (colorAxis.options.dataClasses) { allItems = allItems.concat(colorAxis.getDataClassLegendSymbols()); // Gradient legend } else { // Add this axis on top allItems.push(colorAxis); } // Don't add the color axis' series each(colorAxis.series, function (series) { series.options.showInLegend = false; }); } return allItems.concat(proceed.call(this)); }); /** * Mixin for maps and heatmaps */ var colorPointMixin = { /** * Set the visibility of a single point */ setVisible: function (vis) { var point = this, method = vis ? 'show' : 'hide'; // Show and hide associated elements each(['graphic', 'dataLabel'], function (key) { if (point[key]) { point[key][method](); } }); } }; var colorSeriesMixin = { pointAttrToOptions: { // mapping between SVG attributes and the corresponding options stroke: 'borderColor', 'stroke-width': 'borderWidth', fill: 'color', dashstyle: 'dashStyle' }, pointArrayMap: ['value'], axisTypes: ['xAxis', 'yAxis', 'colorAxis'], optionalAxis: 'colorAxis', trackerGroups: ['group', 'markerGroup', 'dataLabelsGroup'], getSymbol: noop, parallelArrays: ['x', 'y', 'value'], colorKey: 'value', /** * In choropleth maps, the color is a result of the value, so this needs translation too */ translateColors: function () { var series = this, nullColor = this.options.nullColor, colorAxis = this.colorAxis, colorKey = this.colorKey; each(this.data, function (point) { var value = point[colorKey], color; color = point.options.color || (value === null ? nullColor : (colorAxis && value !== undefined) ? colorAxis.toColor(value, point) : point.color || series.color); if (color) { point.color = color; } }); } }; /** * Extend the default options with map options */ defaultOptions.plotOptions.heatmap = merge(defaultOptions.plotOptions.scatter, { animation: false, borderWidth: 0, nullColor: '#F8F8F8', dataLabels: { formatter: function () { // #2945 return this.point.value; }, inside: true, verticalAlign: 'middle', crop: false, overflow: false, padding: 0 // #3837 }, marker: null, pointRange: null, // dynamically set to colsize by default tooltip: { pointFormat: '{point.x}, {point.y}: {point.value}<br/>' }, states: { normal: { animation: true }, hover: { halo: false, // #3406, halo is not required on heatmaps brightness: 0.2 } } }); // The Heatmap series type seriesTypes.heatmap = extendClass(seriesTypes.scatter, merge(colorSeriesMixin, { type: 'heatmap', pointArrayMap: ['y', 'value'], hasPointSpecificOptions: true, pointClass: extendClass(Point, colorPointMixin), supportsDrilldown: true, getExtremesFromAll: true, directTouch: true, /** * Override the init method to add point ranges on both axes. */ init: function () { var options; seriesTypes.scatter.prototype.init.apply(this, arguments); options = this.options; options.pointRange = pick(options.pointRange, options.colsize || 1); // #3758, prevent resetting in setData this.yAxis.axisPointRange = options.rowsize || 1; // general point range }, translate: function () { var series = this, options = series.options, xAxis = series.xAxis, yAxis = series.yAxis, between = function (x, a, b) { return Math.min(Math.max(a, x), b); }; series.generatePoints(); each(series.points, function (point) { var xPad = (options.colsize || 1) / 2, yPad = (options.rowsize || 1) / 2, x1 = between(Math.round(xAxis.len - xAxis.translate(point.x - xPad, 0, 1, 0, 1)), 0, xAxis.len), x2 = between(Math.round(xAxis.len - xAxis.translate(point.x + xPad, 0, 1, 0, 1)), 0, xAxis.len), y1 = between(Math.round(yAxis.translate(point.y - yPad, 0, 1, 0, 1)), 0, yAxis.len), y2 = between(Math.round(yAxis.translate(point.y + yPad, 0, 1, 0, 1)), 0, yAxis.len); // Set plotX and plotY for use in K-D-Tree and more point.plotX = point.clientX = (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(); // Make sure colors are updated on colorAxis update (#2893) if (this.chart.hasRendered) { each(series.points, function (point) { point.shapeArgs.fill = point.options.color || point.color; // #3311 }); } }, 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); } })); }));