278 lines
10 KiB
JavaScript
278 lines
10 KiB
JavaScript
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/**
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* @license Highcharts JS v5.0.2 (2016-10-26)
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* Solid angular gauge module
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*
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* (c) 2010-2016 Torstein Honsi
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*
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* License: www.highcharts.com/license
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*/
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(function(factory) {
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if (typeof module === 'object' && module.exports) {
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module.exports = factory;
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} else {
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factory(Highcharts);
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}
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}(function(Highcharts) {
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(function(H) {
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/**
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* Solid angular gauge module
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*
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* (c) 2010-2016 Torstein Honsi
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*
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* License: www.highcharts.com/license
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*/
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'use strict';
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var pInt = H.pInt,
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pick = H.pick,
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each = H.each,
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isNumber = H.isNumber,
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colorAxisMethods;
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// These methods are defined in the ColorAxis object, and copied here.
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// If we implement an AMD system we should make ColorAxis a dependency.
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colorAxisMethods = {
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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 = H.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(H.color(options.minColor), H.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 = H.color(stop[1]);
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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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/*
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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,
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ret;
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// Unsupported color, return to-color (#3920)
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if (!to.rgba.length || !from.rgba.length) {
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ret = to.input || 'none';
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// Interpolate
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} else {
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from = from.rgba;
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to = to.rgba;
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hasAlpha = (to[3] !== 1 || from[3] !== 1);
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ret = (hasAlpha ? 'rgba(' : 'rgb(') +
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Math.round(to[0] + (from[0] - to[0]) * (1 - pos)) + ',' +
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Math.round(to[1] + (from[1] - to[1]) * (1 - pos)) + ',' +
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Math.round(to[2] + (from[2] - to[2]) * (1 - pos)) +
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(hasAlpha ? (',' + (to[3] + (from[3] - to[3]) * (1 - pos))) : '') + ')';
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}
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return ret;
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}
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};
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/**
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* Handle animation of the color attributes directly
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*/
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each(['fill', 'stroke'], function(prop) {
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H.Fx.prototype[prop + 'Setter'] = function() {
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this.elem.attr(prop, colorAxisMethods.tweenColors(H.color(this.start), H.color(this.end), this.pos));
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};
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});
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// The solidgauge series type
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H.seriesType('solidgauge', 'gauge', {
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colorByPoint: true
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}, {
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bindAxes: function() {
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var axis;
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H.seriesTypes.gauge.prototype.bindAxes.call(this);
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axis = this.yAxis;
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H.extend(axis, colorAxisMethods);
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// Prepare data classes
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if (axis.options.dataClasses) {
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axis.initDataClasses(axis.options);
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}
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axis.initStops(axis.options);
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},
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/**
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* Draw the points where each point is one needle
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*/
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drawPoints: function() {
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var series = this,
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yAxis = series.yAxis,
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center = yAxis.center,
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options = series.options,
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renderer = series.chart.renderer,
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overshoot = options.overshoot,
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overshootVal = isNumber(overshoot) ? overshoot / 180 * Math.PI : 0;
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each(series.points, function(point) {
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var graphic = point.graphic,
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rotation = yAxis.startAngleRad + yAxis.translate(point.y, null, null, null, true),
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radius = (pInt(pick(point.options.radius, options.radius, 100)) * center[2]) / 200,
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innerRadius = (pInt(pick(point.options.innerRadius, options.innerRadius, 60)) * center[2]) / 200,
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shapeArgs,
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d,
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toColor = yAxis.toColor(point.y, point),
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axisMinAngle = Math.min(yAxis.startAngleRad, yAxis.endAngleRad),
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axisMaxAngle = Math.max(yAxis.startAngleRad, yAxis.endAngleRad),
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minAngle,
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maxAngle;
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if (toColor === 'none') { // #3708
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toColor = point.color || series.color || 'none';
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}
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if (toColor !== 'none') {
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point.color = toColor;
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}
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// Handle overshoot and clipping to axis max/min
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rotation = Math.max(axisMinAngle - overshootVal, Math.min(axisMaxAngle + overshootVal, rotation));
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// Handle the wrap option
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if (options.wrap === false) {
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rotation = Math.max(axisMinAngle, Math.min(axisMaxAngle, rotation));
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}
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minAngle = Math.min(rotation, yAxis.startAngleRad);
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maxAngle = Math.max(rotation, yAxis.startAngleRad);
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if (maxAngle - minAngle > 2 * Math.PI) {
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maxAngle = minAngle + 2 * Math.PI;
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}
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point.shapeArgs = shapeArgs = {
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x: center[0],
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y: center[1],
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r: radius,
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innerR: innerRadius,
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start: minAngle,
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end: maxAngle,
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fill: toColor
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};
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point.startR = radius; // For PieSeries.animate
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if (graphic) {
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d = shapeArgs.d;
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graphic.animate(shapeArgs);
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if (d) {
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shapeArgs.d = d; // animate alters it
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}
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} else {
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point.graphic = renderer.arc(shapeArgs)
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.addClass('highcharts-point')
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.attr({
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fill: toColor,
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'sweep-flag': 0
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})
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.add(series.group);
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}
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});
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},
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/**
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* Extend the pie slice animation by animating from start angle and up
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*/
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animate: function(init) {
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if (!init) {
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this.startAngleRad = this.yAxis.startAngleRad;
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H.seriesTypes.pie.prototype.animate.call(this, init);
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}
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}
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});
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}(Highcharts));
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}));
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