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54 lines
1.1 KiB
Plaintext
54 lines
1.1 KiB
Plaintext
11 months ago
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(function (Highcharts) {
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var seriesTypes = Highcharts.seriesTypes,
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each = Highcharts.each;
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seriesTypes.heatmap = Highcharts.extendClass(seriesTypes.map, {
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colorKey: 'z',
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useMapGeometry: false,
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pointArrayMap: ['y', 'z'],
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translate: function () {
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var series = this,
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options = series.options,
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dataMin = Number.MAX_VALUE,
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dataMax = Number.MIN_VALUE;
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series.generatePoints();
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each(series.data, function (point) {
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var x = point.x,
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y = point.y,
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value = point.z,
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xPad = (options.colsize || 1) / 2,
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yPad = (options.rowsize || 1) / 2;
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point.path = [
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'M', x - xPad, y - yPad,
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'L', x + xPad, y - yPad,
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'L', x + xPad, y + yPad,
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'L', x - xPad, y + yPad,
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'Z'
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];
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point.shapeType = 'path';
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point.shapeArgs = {
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d: series.translatePath(point.path)
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};
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if (typeof value === 'number') {
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if (value > dataMax) {
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dataMax = value;
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} else if (value < dataMin) {
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dataMin = value;
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}
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}
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});
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series.translateColors(dataMin, dataMax);
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},
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getBox: function () {}
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});
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}(Highcharts));
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