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1002 lines
26 KiB
1002 lines
26 KiB
/** |
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* @license Map plugin v0.1 for Highcharts |
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* |
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* (c) 2011-2013 Torstein Hønsi |
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* |
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* License: www.highcharts.com/license |
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*/ |
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|
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/* |
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* See www.highcharts.com/studies/world-map.htm for use case. |
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* |
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* To do: |
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* - Optimize long variable names and alias adapter methods and Highcharts namespace variables |
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* - Zoom and pan GUI |
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*/ |
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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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Point = Highcharts.Point, |
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Pointer = Highcharts.Pointer, |
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each = Highcharts.each, |
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extend = Highcharts.extend, |
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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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defaultOptions = Highcharts.getOptions(), |
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seriesTypes = Highcharts.seriesTypes, |
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plotOptions = defaultOptions.plotOptions, |
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wrap = Highcharts.wrap, |
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Color = Highcharts.Color, |
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noop = function () {}; |
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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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function tweenColors(from, to, pos) { |
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var i = 4, |
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rgba = []; |
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|
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while (i--) { |
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rgba[i] = Math.round( |
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to.rgba[i] + (from.rgba[i] - to.rgba[i]) * (1 - pos) |
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); |
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} |
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return 'rgba(' + rgba.join(',') + ')'; |
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} |
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|
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// Set the default map navigation options |
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defaultOptions.mapNavigation = { |
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buttonOptions: { |
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align: 'right', |
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verticalAlign: 'bottom', |
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x: 0, |
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width: 18, |
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height: 18, |
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style: { |
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fontSize: '15px', |
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fontWeight: 'bold', |
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textAlign: 'center' |
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} |
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}, |
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buttons: { |
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zoomIn: { |
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onclick: function () { |
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this.mapZoom(0.5); |
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}, |
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text: '+', |
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y: -32 |
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}, |
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zoomOut: { |
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onclick: function () { |
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this.mapZoom(2); |
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}, |
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text: '-', |
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y: 0 |
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} |
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} |
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// enableButtons: false, |
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// enableTouchZoom: false, |
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// zoomOnDoubleClick: false, |
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// zoomOnMouseWheel: false |
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}; |
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|
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/** |
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* Utility for reading SVG paths directly. |
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*/ |
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Highcharts.splitPath = function (path) { |
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var i; |
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|
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// Move letters apart |
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path = path.replace(/([A-Za-z])/g, ' $1 '); |
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// Trim |
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path = path.replace(/^\s*/, "").replace(/\s*$/, ""); |
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|
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// Split on spaces and commas |
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path = path.split(/[ ,]+/); |
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|
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// Parse numbers |
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for (i = 0; i < path.length; i++) { |
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if (!/[a-zA-Z]/.test(path[i])) { |
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path[i] = parseFloat(path[i]); |
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} |
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} |
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return path; |
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}; |
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|
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// A placeholder for map definitions |
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Highcharts.maps = {}; |
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|
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/** |
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* Override to use the extreme coordinates from the SVG shape, not the |
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* data values |
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*/ |
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wrap(Axis.prototype, 'getSeriesExtremes', function (proceed) { |
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var isXAxis = this.isXAxis, |
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dataMin, |
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dataMax, |
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xData = []; |
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|
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// Remove the xData array and cache it locally so that the proceed method doesn't use it |
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each(this.series, function (series, i) { |
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if (series.useMapGeometry) { |
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xData[i] = series.xData; |
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series.xData = []; |
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} |
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}); |
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|
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// Call base to reach normal cartesian series (like mappoint) |
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proceed.call(this); |
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|
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// Run extremes logic for map and mapline |
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dataMin = pick(this.dataMin, Number.MAX_VALUE); |
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dataMax = pick(this.dataMax, Number.MIN_VALUE); |
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each(this.series, function (series, i) { |
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if (series.useMapGeometry) { |
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dataMin = Math.min(dataMin, series[isXAxis ? 'minX' : 'minY']); |
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dataMax = Math.max(dataMax, series[isXAxis ? 'maxX' : 'maxY']); |
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series.xData = xData[i]; // Reset xData array |
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} |
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}); |
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this.dataMin = dataMin; |
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this.dataMax = dataMax; |
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}); |
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/** |
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* Override axis translation to make sure the aspect ratio is always kept |
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*/ |
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wrap(Axis.prototype, 'setAxisTranslation', function (proceed) { |
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var chart = this.chart, |
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mapRatio, |
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plotRatio = chart.plotWidth / chart.plotHeight, |
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isXAxis = this.isXAxis, |
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adjustedAxisLength, |
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xAxis = chart.xAxis[0], |
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padAxis; |
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|
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// Run the parent method |
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proceed.call(this); |
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|
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// On Y axis, handle both |
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if (chart.options.chart.type === 'map' && !isXAxis && xAxis.transA !== UNDEFINED) { |
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|
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// Use the same translation for both axes |
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this.transA = xAxis.transA = Math.min(this.transA, xAxis.transA); |
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mapRatio = (xAxis.max - xAxis.min) / (this.max - this.min); |
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|
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// What axis to pad to put the map in the middle |
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padAxis = mapRatio > plotRatio ? this : xAxis; |
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|
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// Pad it |
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adjustedAxisLength = (padAxis.max - padAxis.min) * padAxis.transA; |
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padAxis.minPixelPadding = (padAxis.len - adjustedAxisLength) / 2; |
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} |
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}); |
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//--- Start zooming and panning features |
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wrap(Chart.prototype, 'render', function (proceed) { |
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var chart = this, |
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mapNavigation = chart.options.mapNavigation; |
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proceed.call(chart); |
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// Render the plus and minus buttons |
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chart.renderMapNavigation(); |
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|
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// Add the double click event |
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if (mapNavigation.zoomOnDoubleClick) { |
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Highcharts.addEvent(chart.container, 'dblclick', function (e) { |
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chart.pointer.onContainerDblClick(e); |
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}); |
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} |
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// Add the mousewheel event |
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if (mapNavigation.zoomOnMouseWheel) { |
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Highcharts.addEvent(chart.container, document.onmousewheel === undefined ? 'DOMMouseScroll' : 'mousewheel', function (e) { |
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chart.pointer.onContainerMouseWheel(e); |
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}); |
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} |
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}); |
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// Extend the Pointer |
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extend(Pointer.prototype, { |
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/** |
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* The event handler for the doubleclick event |
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*/ |
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onContainerDblClick: function (e) { |
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var chart = this.chart; |
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e = this.normalize(e); |
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if (chart.isInsidePlot(e.chartX - chart.plotLeft, e.chartY - chart.plotTop)) { |
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chart.mapZoom( |
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0.5, |
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chart.xAxis[0].toValue(e.chartX), |
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chart.yAxis[0].toValue(e.chartY) |
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); |
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} |
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}, |
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/** |
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* The event handler for the mouse scroll event |
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*/ |
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onContainerMouseWheel: function (e) { |
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var chart = this.chart, |
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delta; |
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e = this.normalize(e); |
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// Firefox uses e.detail, WebKit and IE uses wheelDelta |
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delta = e.detail || -(e.wheelDelta / 120); |
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if (chart.isInsidePlot(e.chartX - chart.plotLeft, e.chartY - chart.plotTop)) { |
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chart.mapZoom( |
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delta > 0 ? 2 : 0.5, |
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chart.xAxis[0].toValue(e.chartX), |
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chart.yAxis[0].toValue(e.chartY) |
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); |
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} |
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} |
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}); |
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// Implement the pinchType option |
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wrap(Pointer.prototype, 'init', function (proceed, chart, options) { |
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proceed.call(this, chart, options); |
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// Pinch status |
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if (options.mapNavigation.enableTouchZoom) { |
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this.pinchX = this.pinchHor = |
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this.pinchY = this.pinchVert = true; |
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} |
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}); |
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// Add events to the Chart object itself |
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extend(Chart.prototype, { |
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renderMapNavigation: function () { |
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var chart = this, |
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options = this.options.mapNavigation, |
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buttons = options.buttons, |
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n, |
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button, |
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buttonOptions, |
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outerHandler = function () { |
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this.handler.call(chart); |
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}; |
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|
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if (options.enableButtons) { |
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for (n in buttons) { |
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if (buttons.hasOwnProperty(n)) { |
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buttonOptions = merge(options.buttonOptions, buttons[n]); |
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button = chart.renderer.button(buttonOptions.text, 0, 0, outerHandler) |
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.attr({ |
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width: buttonOptions.width, |
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height: buttonOptions.height |
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}) |
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.css(buttonOptions.style) |
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.add(); |
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button.handler = buttonOptions.onclick; |
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button.align(extend(buttonOptions, { width: button.width, height: button.height }), null, 'spacingBox'); |
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} |
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} |
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} |
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}, |
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/** |
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* Fit an inner box to an outer. If the inner box overflows left or right, align it to the sides of the |
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* outer. If it overflows both sides, fit it within the outer. This is a pattern that occurs more places |
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* in Highcharts, perhaps it should be elevated to a common utility function. |
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*/ |
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fitToBox: function (inner, outer) { |
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each([['x', 'width'], ['y', 'height']], function (dim) { |
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var pos = dim[0], |
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size = dim[1]; |
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if (inner[pos] + inner[size] > outer[pos] + outer[size]) { // right overflow |
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if (inner[size] > outer[size]) { // the general size is greater, fit fully to outer |
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inner[size] = outer[size]; |
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inner[pos] = outer[pos]; |
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} else { // align right |
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inner[pos] = outer[pos] + outer[size] - inner[size]; |
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} |
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} |
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if (inner[size] > outer[size]) { |
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inner[size] = outer[size]; |
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} |
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if (inner[pos] < outer[pos]) { |
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inner[pos] = outer[pos]; |
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} |
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}); |
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return inner; |
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}, |
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/** |
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* Zoom the map in or out by a certain amount. Less than 1 zooms in, greater than 1 zooms out. |
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*/ |
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mapZoom: function (howMuch, centerXArg, centerYArg) { |
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|
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if (this.isMapZooming) { |
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return; |
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} |
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|
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var chart = this, |
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xAxis = chart.xAxis[0], |
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xRange = xAxis.max - xAxis.min, |
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centerX = pick(centerXArg, xAxis.min + xRange / 2), |
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newXRange = xRange * howMuch, |
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yAxis = chart.yAxis[0], |
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yRange = yAxis.max - yAxis.min, |
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centerY = pick(centerYArg, yAxis.min + yRange / 2), |
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newYRange = yRange * howMuch, |
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newXMin = centerX - newXRange / 2, |
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newYMin = centerY - newYRange / 2, |
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animation = pick(chart.options.chart.animation, true), |
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delay, |
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newExt = chart.fitToBox({ |
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x: newXMin, |
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y: newYMin, |
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width: newXRange, |
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height: newYRange |
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}, { |
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x: xAxis.dataMin, |
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y: yAxis.dataMin, |
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width: xAxis.dataMax - xAxis.dataMin, |
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height: yAxis.dataMax - yAxis.dataMin |
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}); |
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xAxis.setExtremes(newExt.x, newExt.x + newExt.width, false); |
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yAxis.setExtremes(newExt.y, newExt.y + newExt.height, false); |
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|
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// Prevent zooming until this one is finished animating |
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delay = animation ? animation.duration || 500 : 0; |
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if (delay) { |
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chart.isMapZooming = true; |
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setTimeout(function () { |
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chart.isMapZooming = false; |
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}, delay); |
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} |
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|
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chart.redraw(); |
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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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plotOptions.map = merge(plotOptions.scatter, { |
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animation: false, // makes the complex shapes slow |
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nullColor: '#F8F8F8', |
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borderColor: 'silver', |
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borderWidth: 1, |
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marker: null, |
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stickyTracking: false, |
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dataLabels: { |
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verticalAlign: 'middle' |
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}, |
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turboThreshold: 0, |
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tooltip: { |
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followPointer: true, |
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pointFormat: '{point.name}: {point.y}<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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} |
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}); |
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|
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var MapAreaPoint = Highcharts.extendClass(Point, { |
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/** |
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* Extend the Point object to split paths |
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*/ |
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applyOptions: function (options, x) { |
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|
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var point = Point.prototype.applyOptions.call(this, options, x); |
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|
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if (point.path && typeof point.path === 'string') { |
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point.path = point.options.path = Highcharts.splitPath(point.path); |
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} |
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return point; |
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}, |
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/** |
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* Stop the fade-out |
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*/ |
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onMouseOver: function () { |
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clearTimeout(this.colorInterval); |
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Point.prototype.onMouseOver.call(this); |
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}, |
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/** |
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* Custom animation for tweening out the colors. Animation reduces blinking when hovering |
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* over islands and coast lines. We run a custom implementation of animation becuase we |
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* need to be able to run this independently from other animations like zoom redraw. Also, |
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* adding color animation to the adapters would introduce almost the same amount of code. |
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*/ |
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onMouseOut: function () { |
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var point = this, |
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start = +new Date(), |
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normalColor = Color(point.options.color), |
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hoverColor = Color(point.pointAttr.hover.fill), |
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animation = point.series.options.states.normal.animation, |
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duration = animation && (animation.duration || 500); |
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|
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if (duration && normalColor.rgba.length === 4 && hoverColor.rgba.length === 4) { |
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delete point.pointAttr[''].fill; // avoid resetting it in Point.setState |
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|
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clearTimeout(point.colorInterval); |
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point.colorInterval = setInterval(function () { |
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var pos = (new Date() - start) / duration, |
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graphic = point.graphic; |
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if (pos > 1) { |
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pos = 1; |
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} |
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if (graphic) { |
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graphic.attr('fill', tweenColors(hoverColor, normalColor, pos)); |
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} |
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if (pos >= 1) { |
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clearTimeout(point.colorInterval); |
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} |
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}, 13); |
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} |
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Point.prototype.onMouseOut.call(point); |
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} |
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}); |
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|
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/** |
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* Add the series type |
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*/ |
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seriesTypes.map = Highcharts.extendClass(seriesTypes.scatter, { |
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type: 'map', |
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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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}, |
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colorKey: 'y', |
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pointClass: MapAreaPoint, |
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trackerGroups: ['group', 'markerGroup', 'dataLabelsGroup'], |
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getSymbol: noop, |
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supportsDrilldown: true, |
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getExtremesFromAll: true, |
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useMapGeometry: true, // get axis extremes from paths, not values |
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init: function (chart) { |
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var series = this, |
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valueDecimals = chart.options.legend.valueDecimals, |
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legendItems = [], |
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name, |
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from, |
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to, |
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fromLabel, |
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toLabel, |
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colorRange, |
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valueRanges, |
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gradientColor, |
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grad, |
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tmpLabel, |
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horizontal = chart.options.legend.layout === 'horizontal'; |
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|
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|
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Highcharts.Series.prototype.init.apply(this, arguments); |
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colorRange = series.options.colorRange; |
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valueRanges = series.options.valueRanges; |
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|
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if (valueRanges) { |
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each(valueRanges, function (range) { |
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from = range.from; |
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to = range.to; |
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|
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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); |
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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); |
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} |
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|
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// Add a mock object to the legend items |
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legendItems.push(Highcharts.extend({ |
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chart: series.chart, |
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name: name, |
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options: {}, |
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drawLegendSymbol: seriesTypes.area.prototype.drawLegendSymbol, |
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visible: true, |
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setState: function () {}, |
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setVisible: function () {} |
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}, range)); |
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}); |
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series.legendItems = legendItems; |
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|
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} else if (colorRange) { |
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|
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from = colorRange.from; |
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to = colorRange.to; |
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fromLabel = colorRange.fromLabel; |
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toLabel = colorRange.toLabel; |
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|
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// Flips linearGradient variables and label text. |
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grad = horizontal ? [0, 0, 1, 0] : [0, 1, 0, 0]; |
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if (!horizontal) { |
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tmpLabel = fromLabel; |
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fromLabel = toLabel; |
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toLabel = tmpLabel; |
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} |
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|
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// Creates color gradient. |
|
gradientColor = { |
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linearGradient: { x1: grad[0], y1: grad[1], x2: grad[2], y2: grad[3] }, |
|
stops: |
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[ |
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[0, from], |
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[1, to] |
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] |
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}; |
|
|
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// Add a mock object to the legend items. |
|
legendItems = [{ |
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chart: series.chart, |
|
options: {}, |
|
fromLabel: fromLabel, |
|
toLabel: toLabel, |
|
color: gradientColor, |
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drawLegendSymbol: this.drawLegendSymbolGradient, |
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visible: true, |
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setState: function () {}, |
|
setVisible: function () {} |
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}]; |
|
|
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series.legendItems = legendItems; |
|
} |
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}, |
|
|
|
/** |
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* If neither valueRanges nor colorRanges are defined, use basic area symbol. |
|
*/ |
|
drawLegendSymbol: seriesTypes.area.prototype.drawLegendSymbol, |
|
|
|
/** |
|
* Gets the series' symbol in the legend and extended legend with more information. |
|
* |
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* @param {Object} legend The legend object |
|
* @param {Object} item The series (this) or point |
|
*/ |
|
drawLegendSymbolGradient: function (legend, item) { |
|
var spacing = legend.options.symbolPadding, |
|
padding = pick(legend.options.padding, 8), |
|
positionY, |
|
positionX, |
|
gradientSize = this.chart.renderer.fontMetrics(legend.options.itemStyle.fontSize).h, |
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horizontal = legend.options.layout === 'horizontal', |
|
box1, |
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box2, |
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box3, |
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rectangleLength = pick(legend.options.rectangleLength, 200); |
|
|
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// Set local variables based on option. |
|
if (horizontal) { |
|
positionY = -(spacing / 2); |
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positionX = 0; |
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} else { |
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positionY = -rectangleLength + legend.baseline - (spacing / 2); |
|
positionX = padding + gradientSize; |
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} |
|
|
|
// Creates the from text. |
|
item.fromText = this.chart.renderer.text( |
|
item.fromLabel, // Text. |
|
positionX, // Lower left x. |
|
positionY // Lower left y. |
|
).attr({ |
|
zIndex: 2 |
|
}).add(item.legendGroup); |
|
box1 = item.fromText.getBBox(); |
|
|
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// Creates legend symbol. |
|
// Ternary changes variables based on option. |
|
item.legendSymbol = this.chart.renderer.rect( |
|
horizontal ? box1.x + box1.width + spacing : box1.x - gradientSize - spacing, // Upper left x. |
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box1.y, // Upper left y. |
|
horizontal ? rectangleLength : gradientSize, // Width. |
|
horizontal ? gradientSize : rectangleLength, // Height. |
|
2 // Corner radius. |
|
).attr({ |
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zIndex: 1 |
|
}).add(item.legendGroup); |
|
box2 = item.legendSymbol.getBBox(); |
|
|
|
// Creates the to text. |
|
// Vertical coordinate changed based on option. |
|
item.toText = this.chart.renderer.text( |
|
item.toLabel, |
|
box2.x + box2.width + spacing, |
|
horizontal ? positionY : box2.y + box2.height - spacing |
|
).attr({ |
|
zIndex: 2 |
|
}).add(item.legendGroup); |
|
box3 = item.toText.getBBox(); |
|
|
|
// Changes legend box settings based on option. |
|
if (horizontal) { |
|
legend.offsetWidth = box1.width + box2.width + box3.width + (spacing * 2) + padding; |
|
legend.itemY = gradientSize + padding; |
|
} else { |
|
legend.offsetWidth = Math.max(box1.width, box3.width) + (spacing) + box2.width + padding; |
|
legend.itemY = box2.height + padding; |
|
legend.itemX = spacing; |
|
} |
|
}, |
|
|
|
/** |
|
* Get the bounding box of all paths in the map combined. |
|
*/ |
|
getBox: function (paths) { |
|
var maxX = Number.MIN_VALUE, |
|
minX = Number.MAX_VALUE, |
|
maxY = Number.MIN_VALUE, |
|
minY = Number.MAX_VALUE; |
|
|
|
|
|
// Find the bounding box |
|
each(paths || this.options.data, function (point) { |
|
var path = point.path, |
|
i = path.length, |
|
even = false, // while loop reads from the end |
|
pointMaxX = Number.MIN_VALUE, |
|
pointMinX = Number.MAX_VALUE, |
|
pointMaxY = Number.MIN_VALUE, |
|
pointMinY = Number.MAX_VALUE; |
|
|
|
while (i--) { |
|
if (typeof path[i] === 'number' && !isNaN(path[i])) { |
|
if (even) { // even = x |
|
pointMaxX = Math.max(pointMaxX, path[i]); |
|
pointMinX = Math.min(pointMinX, path[i]); |
|
} else { // odd = Y |
|
pointMaxY = Math.max(pointMaxY, path[i]); |
|
pointMinY = Math.min(pointMinY, path[i]); |
|
} |
|
even = !even; |
|
} |
|
} |
|
// Cache point bounding box for use to position data labels |
|
point._maxX = pointMaxX; |
|
point._minX = pointMinX; |
|
point._maxY = pointMaxY; |
|
point._minY = pointMinY; |
|
|
|
maxX = Math.max(maxX, pointMaxX); |
|
minX = Math.min(minX, pointMinX); |
|
maxY = Math.max(maxY, pointMaxY); |
|
minY = Math.min(minY, pointMinY); |
|
}); |
|
this.minY = minY; |
|
this.maxY = maxY; |
|
this.minX = minX; |
|
this.maxX = maxX; |
|
|
|
}, |
|
|
|
|
|
|
|
/** |
|
* Translate the path so that it automatically fits into the plot area box |
|
* @param {Object} path |
|
*/ |
|
translatePath: function (path) { |
|
|
|
var series = this, |
|
even = false, // while loop reads from the end |
|
xAxis = series.xAxis, |
|
yAxis = series.yAxis, |
|
i; |
|
|
|
// Preserve the original |
|
path = [].concat(path); |
|
|
|
// Do the translation |
|
i = path.length; |
|
while (i--) { |
|
if (typeof path[i] === 'number') { |
|
if (even) { // even = x |
|
path[i] = Math.round(xAxis.translate(path[i])); |
|
} else { // odd = Y |
|
path[i] = Math.round(yAxis.len - yAxis.translate(path[i])); |
|
} |
|
even = !even; |
|
} |
|
} |
|
return path; |
|
}, |
|
|
|
setData: function () { |
|
Highcharts.Series.prototype.setData.apply(this, arguments); |
|
this.getBox(); |
|
}, |
|
|
|
/** |
|
* Add the path option for data points. Find the max value for color calculation. |
|
*/ |
|
translate: function () { |
|
var series = this, |
|
dataMin = Number.MAX_VALUE, |
|
dataMax = Number.MIN_VALUE; |
|
|
|
series.generatePoints(); |
|
|
|
each(series.data, function (point) { |
|
|
|
point.shapeType = 'path'; |
|
point.shapeArgs = { |
|
d: series.translatePath(point.path) |
|
}; |
|
|
|
// TODO: do point colors in drawPoints instead of point.init |
|
if (typeof point.y === 'number') { |
|
if (point.y > dataMax) { |
|
dataMax = point.y; |
|
} else if (point.y < dataMin) { |
|
dataMin = point.y; |
|
} |
|
} |
|
}); |
|
|
|
series.translateColors(dataMin, dataMax); |
|
}, |
|
|
|
/** |
|
* In choropleth maps, the color is a result of the value, so this needs translation too |
|
*/ |
|
translateColors: function (dataMin, dataMax) { |
|
|
|
var seriesOptions = this.options, |
|
valueRanges = seriesOptions.valueRanges, |
|
colorRange = seriesOptions.colorRange, |
|
colorKey = this.colorKey, |
|
from, |
|
to; |
|
|
|
if (colorRange) { |
|
from = Color(colorRange.from); |
|
to = Color(colorRange.to); |
|
} |
|
|
|
each(this.data, function (point) { |
|
var value = point[colorKey], |
|
range, |
|
color, |
|
i, |
|
pos; |
|
|
|
if (valueRanges) { |
|
i = valueRanges.length; |
|
while (i--) { |
|
range = valueRanges[i]; |
|
from = range.from; |
|
to = range.to; |
|
if ((from === UNDEFINED || value >= from) && (to === UNDEFINED || value <= to)) { |
|
color = range.color; |
|
break; |
|
} |
|
|
|
} |
|
} else if (colorRange && value !== undefined) { |
|
|
|
pos = 1 - ((dataMax - value) / (dataMax - dataMin)); |
|
color = value === null ? seriesOptions.nullColor : tweenColors(from, to, pos); |
|
} |
|
|
|
if (color) { |
|
point.color = null; // reset from previous drilldowns, use of the same data options |
|
point.options.color = color; |
|
} |
|
}); |
|
}, |
|
|
|
drawGraph: noop, |
|
|
|
/** |
|
* We need the points' bounding boxes in order to draw the data labels, so |
|
* we skip it now and call if from drawPoints instead. |
|
*/ |
|
drawDataLabels: noop, |
|
|
|
/** |
|
* Use the drawPoints method of column, that is able to handle simple shapeArgs. |
|
* Extend it by assigning the tooltip position. |
|
*/ |
|
drawPoints: function () { |
|
var series = this, |
|
xAxis = series.xAxis, |
|
yAxis = series.yAxis, |
|
colorKey = series.colorKey; |
|
|
|
// Make points pass test in drawing |
|
each(series.data, function (point) { |
|
point.plotY = 1; // pass null test in column.drawPoints |
|
if (point[colorKey] === null) { |
|
point[colorKey] = 0; |
|
point.isNull = true; |
|
} |
|
}); |
|
|
|
// Draw them |
|
seriesTypes.column.prototype.drawPoints.apply(series); |
|
|
|
each(series.data, function (point) { |
|
|
|
var dataLabels = point.dataLabels, |
|
minX = xAxis.toPixels(point._minX, true), |
|
maxX = xAxis.toPixels(point._maxX, true), |
|
minY = yAxis.toPixels(point._minY, true), |
|
maxY = yAxis.toPixels(point._maxY, true); |
|
|
|
point.plotX = Math.round(minX + (maxX - minX) * pick(dataLabels && dataLabels.anchorX, 0.5)); |
|
point.plotY = Math.round(minY + (maxY - minY) * pick(dataLabels && dataLabels.anchorY, 0.5)); |
|
|
|
|
|
// Reset escaped null points |
|
if (point.isNull) { |
|
point[colorKey] = null; |
|
} |
|
}); |
|
|
|
// Now draw the data labels |
|
Highcharts.Series.prototype.drawDataLabels.call(series); |
|
|
|
}, |
|
|
|
/** |
|
* Animate in the new series from the clicked point in the old series. |
|
* Depends on the drilldown.js module |
|
*/ |
|
animateDrilldown: function (init) { |
|
var toBox = this.chart.plotBox, |
|
level = this.chart.drilldownLevels[this.chart.drilldownLevels.length - 1], |
|
fromBox = level.bBox, |
|
animationOptions = this.chart.options.drilldown.animation, |
|
scale; |
|
|
|
if (!init) { |
|
|
|
scale = Math.min(fromBox.width / toBox.width, fromBox.height / toBox.height); |
|
level.shapeArgs = { |
|
scaleX: scale, |
|
scaleY: scale, |
|
translateX: fromBox.x, |
|
translateY: fromBox.y |
|
}; |
|
|
|
// TODO: Animate this.group instead |
|
each(this.points, function (point) { |
|
|
|
point.graphic |
|
.attr(level.shapeArgs) |
|
.animate({ |
|
scaleX: 1, |
|
scaleY: 1, |
|
translateX: 0, |
|
translateY: 0 |
|
}, animationOptions); |
|
|
|
}); |
|
|
|
delete this.animate; |
|
} |
|
|
|
}, |
|
|
|
/** |
|
* When drilling up, pull out the individual point graphics from the lower series |
|
* and animate them into the origin point in the upper series. |
|
*/ |
|
animateDrillupFrom: function (level) { |
|
seriesTypes.column.prototype.animateDrillupFrom.call(this, level); |
|
}, |
|
|
|
|
|
/** |
|
* When drilling up, keep the upper series invisible until the lower series has |
|
* moved into place |
|
*/ |
|
animateDrillupTo: function (init) { |
|
seriesTypes.column.prototype.animateDrillupTo.call(this, init); |
|
} |
|
}); |
|
|
|
|
|
// The mapline series type |
|
plotOptions.mapline = merge(plotOptions.map, { |
|
lineWidth: 1, |
|
backgroundColor: 'none' |
|
}); |
|
seriesTypes.mapline = Highcharts.extendClass(seriesTypes.map, { |
|
type: 'mapline', |
|
pointAttrToOptions: { // mapping between SVG attributes and the corresponding options |
|
stroke: 'color', |
|
'stroke-width': 'lineWidth', |
|
fill: 'backgroundColor' |
|
}, |
|
drawLegendSymbol: seriesTypes.line.prototype.drawLegendSymbol |
|
}); |
|
|
|
// The mappoint series type |
|
plotOptions.mappoint = merge(plotOptions.scatter, { |
|
dataLabels: { |
|
enabled: true, |
|
format: '{point.name}', |
|
color: 'black', |
|
style: { |
|
textShadow: '0 0 5px white' |
|
} |
|
} |
|
}); |
|
seriesTypes.mappoint = Highcharts.extendClass(seriesTypes.scatter, { |
|
type: 'mappoint' |
|
}); |
|
|
|
|
|
|
|
/** |
|
* A wrapper for Chart with all the default values for a Map |
|
*/ |
|
Highcharts.Map = function (options, callback) { |
|
|
|
var hiddenAxis = { |
|
endOnTick: false, |
|
gridLineWidth: 0, |
|
labels: { |
|
enabled: false |
|
}, |
|
lineWidth: 0, |
|
minPadding: 0, |
|
maxPadding: 0, |
|
startOnTick: false, |
|
tickWidth: 0, |
|
title: null |
|
}, |
|
seriesOptions; |
|
|
|
// Don't merge the data |
|
seriesOptions = options.series; |
|
options.series = null; |
|
|
|
options = merge({ |
|
chart: { |
|
type: 'map', |
|
panning: 'xy' |
|
}, |
|
xAxis: hiddenAxis, |
|
yAxis: merge(hiddenAxis, { reversed: true }) |
|
}, |
|
options, // user's options |
|
|
|
{ // forced options |
|
chart: { |
|
inverted: false |
|
} |
|
}); |
|
|
|
options.series = seriesOptions; |
|
|
|
|
|
return new Highcharts.Chart(options, callback); |
|
}; |
|
}(Highcharts));
|
|
|