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1861 lines
68 KiB
JavaScript
1861 lines
68 KiB
JavaScript
// version: 2015-11-02
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/**
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* o--------------------------------------------------------------------------------o
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* | This file is part of the RGraph package - you can learn more at: |
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* | |
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* | http://www.rgraph.net |
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* | |
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* | RGraph is dual licensed under the Open Source GPL (General Public License) |
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* | v2.0 license and a commercial license which means that you're not bound by |
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* | the terms of the GPL. The commercial license is just <20>99 (GBP) and you can |
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* | read about it here: |
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* | http://www.rgraph.net/license |
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* o--------------------------------------------------------------------------------o
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*/
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RGraph = window.RGraph || {isRGraph: true};
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RGraph.Effects = RGraph.Effects || {};
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RGraph.Effects.Rose = RGraph.Effects.Rose || {};
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/**
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* The rose chart constuctor
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*
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* @param object canvas
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* @param array data
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*/
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RGraph.Rose = function (conf)
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{
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/**
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* Allow for object config style
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*/
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if ( typeof conf === 'object'
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&& typeof conf.data === 'object'
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&& typeof conf.id === 'string') {
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var parseConfObjectForOptions = true; // Set this so the config is parsed (at the end of the constructor)
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} else {
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var conf = {id: conf};
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conf.data = arguments[1];
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}
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this.id = conf.id;
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this.canvas = document.getElementById(this.id);
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this.context = this.canvas.getContext ? this.canvas.getContext("2d") : null;
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this.data = conf.data;
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this.canvas.__object__ = this;
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this.type = 'rose';
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this.isRGraph = true;
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this.uid = RGraph.CreateUID();
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this.canvas.uid = this.canvas.uid ? this.canvas.uid : RGraph.CreateUID();
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this.colorsParsed = false;
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this.coordsText = [];
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this.original_colors = [];
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this.firstDraw = true; // After the first draw this will be false
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this.centerx = 0;
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this.centery = 0;
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this.radius = 0;
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this.max = 0;
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this.angles = [];
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this.angles2 = [];
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this.properties =
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{
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'chart.background.axes': true,
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'chart.background.axes.color': 'black',
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'chart.background.grid': true,
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'chart.background.grid.color': '#ccc',
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'chart.background.grid.size': null,
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'chart.background.grid.radials':null,
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'chart.background.grid.count': 5,
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'chart.centerx': null,
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'chart.centery': null,
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'chart.radius': null,
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'chart.angles.start': 0,
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'chart.colors': ['rgba(255,0,0,0.5)', 'rgba(255,255,0,0.5)', 'rgba(0,255,255,0.5)', 'rgb(0,255,0)', 'gray', 'blue', 'rgb(255,128,255)','green', 'pink', 'gray', 'aqua'],
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'chart.linewidth': 1,
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'chart.colors.sequential': false,
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'chart.colors.alpha': null,
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'chart.margin': 0,
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'chart.strokestyle': '#aaa',
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'chart.gutter.left': 25,
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'chart.gutter.right': 25,
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'chart.gutter.top': 25,
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'chart.gutter.bottom': 25,
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'chart.title': '',
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'chart.title.background': null,
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'chart.title.hpos': null,
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'chart.title.vpos': null,
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'chart.title.bold': true,
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'chart.title.font': null,
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'chart.title.x': null,
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'chart.title.y': null,
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'chart.title.halign': null,
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'chart.title.valign': null,
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'chart.labels': null,
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'chart.labels.color': null,
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'chart.labels.position': 'center',
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'chart.labels.axes': 'nsew',
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'chart.labels.boxed': false,
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'chart.labels.offset': 0,
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'chart.text.color': 'black',
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'chart.text.font': 'Arial',
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'chart.text.size': 12,
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'chart.key': null,
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'chart.key.background': 'white',
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'chart.key.position': 'graph',
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'chart.key.halign': 'right',
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'chart.key.shadow': false,
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'chart.key.shadow.color': '#666',
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'chart.key.shadow.blur': 3,
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'chart.key.shadow.offsetx': 2,
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'chart.key.shadow.offsety': 2,
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'chart.key.position.gutter.boxed': false,
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'chart.key.position.x': null,
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'chart.key.position.y': null,
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'chart.key.color.shape': 'square',
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'chart.key.rounded': true,
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'chart.key.linewidth': 1,
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'chart.key.colors': null,
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'chart.key.interactive': false,
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'chart.key.interactive.highlight.chart.stroke': 'black',
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'chart.key.interactive.highlight.chart.fill': 'rgba(255,255,255,0.7)',
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'chart.key.interactive.highlight.label': 'rgba(255,0,0,0.2)',
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'chart.key.text.color': 'black',
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'chart.contextmenu': null,
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'chart.tooltips': null,
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'chart.tooltips.event': 'onclick',
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'chart.tooltips.effect': 'fade',
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'chart.tooltips.css.class': 'RGraph_tooltip',
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'chart.tooltips.highlight': true,
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'chart.highlight.stroke': 'rgba(0,0,0,0)',
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'chart.highlight.fill': 'rgba(255,255,255,0.7)',
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'chart.annotatable': false,
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'chart.annotate.color': 'black',
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'chart.zoom.factor': 1.5,
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'chart.zoom.fade.in': true,
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'chart.zoom.fade.out': true,
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'chart.zoom.hdir': 'right',
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'chart.zoom.vdir': 'down',
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'chart.zoom.frames': 25,
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'chart.zoom.delay': 16.666,
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'chart.zoom.shadow': true,
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'chart.zoom.background': true,
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'chart.zoom.action': 'zoom',
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'chart.resizable': false,
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'chart.resize.handle.adjust': [0,0],
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'chart.resize.handle.background': null,
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'chart.adjustable': false,
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'chart.ymax': null,
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'chart.ymin': 0,
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'chart.scale.decimals': null,
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'chart.scale.point': '.',
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'chart.scale.thousand': ',',
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'chart.variant': 'stacked',
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'chart.variant.threed.depth': 10,
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'chart.exploded': 0,
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'chart.events.mousemove': null,
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'chart.events.click': null,
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'chart.animation.roundrobin.factor': 1,
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'chart.animation.roundrobin.radius': true,
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'chart.animation.grow.multiplier': 1,
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'chart.labels.count': 5,
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'chart.segment.highlight': false,
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'chart.segment.highlight.count': null,
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'chart.segment.highlight.fill': 'rgba(0,255,0,0.5)',
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'chart.segment.highlight.stroke': 'rgba(0,0,0,0)'
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}
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/**
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* Create the $ objects. In the case of non-equi-angular rose charts it actually creates too many $ objects,
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* but it doesn't matter.
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*/
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var linear_data = RGraph.arrayLinearize(this.data);
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for (var i=0; i<linear_data.length; ++i) {
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this["$" + i] = {}
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}
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/**
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* Translate half a pixel for antialiasing purposes - but only if it hasn't beeen
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* done already
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*/
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if (!this.canvas.__rgraph_aa_translated__) {
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this.context.translate(0.5,0.5);
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this.canvas.__rgraph_aa_translated__ = true;
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}
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// Short variable names
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var RG = RGraph,
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ca = this.canvas,
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co = ca.getContext('2d'),
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prop = this.properties,
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pa = RG.Path,
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pa2 = RG.path2,
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win = window,
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doc = document,
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ma = Math
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/**
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* "Decorate" the object with the generic effects if the effects library has been included
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*/
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if (RG.Effects && typeof RG.Effects.decorate === 'function') {
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RG.Effects.decorate(this);
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}
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/**
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* A simple setter
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*
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* @param string name The name of the property to set
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* @param string value The value of the property
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*/
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this.set =
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this.Set = function (name)
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{
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var value = typeof arguments[1] === 'undefined' ? null : arguments[1];
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/**
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* the number of arguments is only one and it's an
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* object - parse it for configuration data and return.
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*/
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if (arguments.length === 1 && typeof name === 'object') {
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RG.parseObjectStyleConfig(this, name);
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return this;
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}
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/**
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* This should be done first - prepend the propertyy name with "chart." if necessary
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*/
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if (name.substr(0,6) != 'chart.') {
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name = 'chart.' + name;
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}
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// Convert uppercase letters to dot+lower case letter
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name = name.replace(/([A-Z])/g, function (str)
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{
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return '.' + String(RegExp.$1).toLowerCase();
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});
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// A little BC...
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if (name === 'chart.background.grid.spokes') name = 'chart.background.grid.radials';
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//
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// Change chart.segments.highlight* to chart.segment.highlight (no plural)
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//
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if (name === 'chart.segments.highlight') name = 'chart.segment.highlight';
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if (name === 'chart.segments.highlight.fill') name = 'chart.segment.highlight.fill';
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if (name === 'chart.segments.highlight.stroke') name = 'chart.segment.highlight.stroke';
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prop[name.toLowerCase()] = value;
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return this;
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};
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/**
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* A simple getter
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*
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* @param string name The name of the property to get
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*/
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this.get =
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this.Get = function (name)
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{
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/**
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* This should be done first - prepend the property name with "chart." if necessary
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*/
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if (name.substr(0,6) != 'chart.') {
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name = 'chart.' + name;
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}
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// Convert uppercase letters to dot+lower case letter
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name = name.replace(/([A-Z])/g, function (str)
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{
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return '.' + String(RegExp.$1).toLowerCase()
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});
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return prop[name.toLowerCase()];
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};
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/**
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* This method draws the rose chart
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*/
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this.draw =
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this.Draw = function ()
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{
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/**
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* Fire the onbeforedraw event
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*/
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RG.fireCustomEvent(this, 'onbeforedraw');
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/**
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* This doesn't affect the chart, but is used for compatibility
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*/
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this.gutterLeft = prop['chart.gutter.left'];
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this.gutterRight = prop['chart.gutter.right'];
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this.gutterTop = prop['chart.gutter.top'];
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this.gutterBottom = prop['chart.gutter.bottom'];
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// Calculate the radius
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this.radius = (ma.min(ca.width - this.gutterLeft - this.gutterRight, ca.height - this.gutterTop - this.gutterBottom) / 2);
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this.centerx = ((ca.width - this.gutterLeft - this.gutterRight) / 2) + this.gutterLeft;
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this.centery = ((ca.height - this.gutterTop - this.gutterBottom) / 2) + this.gutterTop;
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this.angles = [];
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this.angles2 = [];
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this.total = 0;
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this.startRadians = prop['chart.angles.start'];
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this.coordsText = [];
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/**
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* Change the centerx marginally if the key is defined
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*/
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if (prop['chart.key'] && prop['chart.key'].length > 0 && prop['chart.key'].length >= 3) {
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this.centerx = this.centerx - this.gutterRight + 5;
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}
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// User specified radius, centerx and centery
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if (typeof prop['chart.centerx'] == 'number') this.centerx = prop['chart.centerx'];
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if (typeof prop['chart.centery'] == 'number') this.centery = prop['chart.centery'];
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if (typeof prop['chart.radius'] == 'number') this.radius = prop['chart.radius'];
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/**
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* Parse the colors for gradients. Its down here so that the center X/Y can be used
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*/
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if (!this.colorsParsed) {
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this.parseColors();
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// Don't want to do this again
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this.colorsParsed = true;
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}
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// 3D variant
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if (prop['chart.variant'].indexOf('3d') !== -1) {
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var scaleX = 1.5;
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this.context.setTransform(
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scaleX,
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0,
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0,
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1,
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(ca.width * scaleX - ca.width) * -0.5,
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0
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);
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}
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this.drawBackground();
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// If a 3D variant draw the depth
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if (prop['chart.variant'].indexOf('3d') !== -1) {
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RG.setShadow(this,'rgba(0,0,0,0.35)',0,15,25);
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for (var i=prop['chart.variant.threed.depth']; i>0; i-=1) {
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this.centery -= 1;
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this.drawRose({storeAngles: false});
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RG.setShadow(this,'rgba(0,0,0,0)',0,0,0);
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// Make the segments darker
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for (var j=0,len=this.angles.length; j<len; j+=1) {
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var a = this.angles[j];
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pa(co, [
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'b',
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'm', a[4], a[5],
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'a', a[4], a[5], a[3] + 1.5, a[0] - 0.01, a[1] + 0.01, false,
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'c',
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'f', 'rgba(0,0,0,0.1)'
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]);
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}
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}
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}
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this.drawRose();
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this.drawLabels();
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/**
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* Set the strokestyle to transparent because of a strange double stroke bug
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*
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* DO NOT REMOVE
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*/
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co.strokeStyle = 'rgba(0,0,0,0)'
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/**
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* Setup the context menu if required
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*/
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if (prop['chart.contextmenu']) {
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RG.ShowContext(this);
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}
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/**
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* This function enables resizing
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*/
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if (prop['chart.resizable']) {
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RG.AllowResizing(this);
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}
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/**
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* This function enables adjusting
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*/
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if (prop['chart.adjustable']) {
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RG.AllowAdjusting(this);
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}
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/**
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* This installs the event listeners
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*/
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RG.InstallEventListeners(this);
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//
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// Allow the segments to be highlighted
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//
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if (prop['chart.segment.highlight']) {
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// Check to see if the dynamic library has been included
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||
if (!RG.allowSegmentHighlight) {
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alert('[WARNING] The segment highlight function does not exist - have you included the dynamic library?');
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||
}
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|
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RG.allowSegmentHighlight({
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object: this,
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count: typeof prop['chart.segment.highlight.count'] === 'number' ? prop['chart.segment.highlight.count'] : this.data.length,
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||
fill: prop['chart.segment.highlight.fill'],
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stroke: prop['chart.segment.highlight.stroke']
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||
});
|
||
}
|
||
|
||
|
||
|
||
/**
|
||
* Fire the onfirstdraw event
|
||
*/
|
||
if (this.firstDraw) {
|
||
RG.fireCustomEvent(this, 'onfirstdraw');
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||
this.firstDraw = false;
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this.firstDrawFunc();
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||
}
|
||
|
||
|
||
|
||
/**
|
||
* Fire the RGraph ondraw event
|
||
*/
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||
RG.FireCustomEvent(this, 'ondraw');
|
||
|
||
return this;
|
||
};
|
||
|
||
|
||
|
||
|
||
/**
|
||
* This method draws the rose charts background
|
||
*/
|
||
this.drawBackground =
|
||
this.DrawBackground = function ()
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||
{
|
||
co.lineWidth = 1;
|
||
|
||
|
||
// Draw the background grey circles/spokes
|
||
if (prop['chart.background.grid']) {
|
||
if (typeof(prop['chart.background.grid.count']) == 'number') {
|
||
prop['chart.background.grid.size'] = this.radius / prop['chart.background.grid.count'];
|
||
}
|
||
|
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co.beginPath();
|
||
co.strokeStyle = prop['chart.background.grid.color'];
|
||
|
||
// Radius must be greater than 0 for Opera to work
|
||
for (var i=prop['chart.background.grid.size']; i<=this.radius; i+=prop['chart.background.grid.size']) {
|
||
|
||
// Hmmm... This is questionable
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||
co.moveTo(this.centerx + i, this.centery);
|
||
|
||
// Radius must be greater than 0 for Opera to work
|
||
co.arc(this.centerx,
|
||
this.centery,
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||
i,
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||
0,
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||
RG.TWOPI,
|
||
false);
|
||
}
|
||
co.stroke();
|
||
|
||
|
||
|
||
|
||
|
||
|
||
// Draw the background lines that go from the center outwards
|
||
co.beginPath();
|
||
if (typeof prop['chart.background.grid.radials'] !== 'number') {
|
||
prop['chart.background.grid.radials'] = this.data.length
|
||
}
|
||
|
||
var num = (360 / prop['chart.background.grid.radials']);
|
||
|
||
for (var i=num; i<=360; i+=num) {
|
||
|
||
// Radius must be greater than 0 for Opera to work
|
||
co.arc(this.centerx,
|
||
this.centery,
|
||
this.radius,
|
||
((i / (180 / RG.PI)) - RG.HALFPI) + this.startRadians,
|
||
(((i + 0.0001) / (180 / RG.PI)) - RG.HALFPI) + this.startRadians,
|
||
false);
|
||
|
||
co.lineTo(this.centerx, this.centery);
|
||
}
|
||
co.stroke();
|
||
}
|
||
|
||
|
||
|
||
if (prop['chart.background.axes']) {
|
||
co.beginPath();
|
||
co.strokeStyle = prop['chart.background.axes.color'];
|
||
|
||
// Draw the X axis
|
||
co.moveTo(this.centerx - this.radius, Math.round(this.centery) );
|
||
co.lineTo(this.centerx + this.radius, Math.round(this.centery) );
|
||
|
||
// Draw the X ends
|
||
co.moveTo(Math.round(this.centerx - this.radius), this.centery - 5);
|
||
co.lineTo(Math.round(this.centerx - this.radius), this.centery + 5);
|
||
co.moveTo(Math.round(this.centerx + this.radius), this.centery - 5);
|
||
co.lineTo(Math.round(this.centerx + this.radius), this.centery + 5);
|
||
|
||
// Draw the X check marks
|
||
for (var i=(this.centerx - this.radius); i<(this.centerx + this.radius); i+=(this.radius / 5)) {
|
||
co.moveTo(Math.round(i), this.centery - 3);
|
||
co.lineTo(Math.round(i), this.centery + 3.5);
|
||
}
|
||
|
||
// Draw the Y check marks
|
||
for (var i=(this.centery - this.radius); i<(this.centery + this.radius); i+=(this.radius / 5)) {
|
||
co.moveTo(this.centerx - 3, Math.round(i));
|
||
co.lineTo(this.centerx + 3, Math.round(i));
|
||
}
|
||
|
||
// Draw the Y axis
|
||
co.moveTo(ma.round(this.centerx), this.centery - this.radius);
|
||
co.lineTo(ma.round(this.centerx), this.centery + this.radius);
|
||
|
||
// Draw the Y ends
|
||
co.moveTo(this.centerx - 5, ma.round(this.centery - this.radius));
|
||
co.lineTo(this.centerx + 5, ma.round(this.centery - this.radius));
|
||
|
||
co.moveTo(this.centerx - 5, ma.round(this.centery + this.radius));
|
||
co.lineTo(this.centerx + 5, ma.round(this.centery + this.radius));
|
||
|
||
// Stroke it
|
||
co.closePath();
|
||
co.stroke();
|
||
}
|
||
};
|
||
|
||
|
||
|
||
|
||
/**
|
||
* This method draws the data on the graph
|
||
*/
|
||
this.drawRose =
|
||
this.DrawRose = function ()
|
||
{
|
||
var max = 0,
|
||
data = this.data,
|
||
margin = RG.degrees2Radians(prop['chart.margin']),
|
||
opt = arguments[0] || {}
|
||
|
||
co.lineWidth = prop['chart.linewidth'];
|
||
|
||
// Work out the maximum value and the sum
|
||
if (RG.isNull(prop['chart.ymax'])) {
|
||
|
||
// Work out the max
|
||
for (var i=0; i<data.length; ++i) {
|
||
if (typeof data[i] == 'number') {
|
||
max = ma.max(max, data[i]);
|
||
} else if (typeof data[i] == 'object' && prop['chart.variant'].indexOf('non-equi-angular') !== -1) {
|
||
max = ma.max(max, data[i][0]);
|
||
|
||
// Fallback is stacked
|
||
} else {
|
||
max = ma.max(max, RG.arraySum(data[i]));
|
||
}
|
||
}
|
||
|
||
this.scale2 = RG.getScale2(this, {
|
||
'max':max,
|
||
'min':0,
|
||
'scale.thousand':prop['chart.scale.thousand'],
|
||
'scale.point':prop['chart.scale.point'],
|
||
'scale.decimals':prop['chart.scale.decimals'],
|
||
'ylabels.count':prop['chart.labels.count'],
|
||
'scale.round':prop['chart.scale.round'],
|
||
'units.pre': prop['chart.units.pre'],
|
||
'units.post': prop['chart.units.post']
|
||
});
|
||
this.max = this.scale2.max;
|
||
|
||
} else {
|
||
|
||
var ymax = prop['chart.ymax'];
|
||
|
||
|
||
|
||
this.scale2 = RG.getScale2(this, {
|
||
'max':ymax,
|
||
'strict':true,
|
||
'scale.thousand':prop['chart.scale.thousand'],
|
||
'scale.point':prop['chart.scale.point'],
|
||
'scale.decimals':prop['chart.scale.decimals'],
|
||
'ylabels.count':prop['chart.labels.count'],
|
||
'scale.round':prop['chart.scale.round'],
|
||
'units.pre': prop['chart.units.pre'],
|
||
'units.post': prop['chart.units.post']
|
||
});
|
||
this.max = this.scale2.max
|
||
}
|
||
|
||
this.sum = RG.array_sum(data);
|
||
|
||
// Move to the centre
|
||
co.moveTo(this.centerx, this.centery);
|
||
|
||
co.stroke(); // Stroke the background so it stays grey
|
||
|
||
// Transparency
|
||
if (prop['chart.colors.alpha']) {
|
||
co.globalAlpha = prop['chart.colors.alpha'];
|
||
}
|
||
|
||
var sequentialIndex = 0;
|
||
|
||
/*******************************************************
|
||
* A non-equi-angular Rose chart
|
||
*******************************************************/
|
||
if (typeof(prop['chart.variant']) == 'string' && prop['chart.variant'].indexOf('non-equi-angular') !== -1) {
|
||
|
||
var total=0;
|
||
for (var i=0; i<data.length; ++i) {
|
||
total += data[i][1];
|
||
}
|
||
|
||
|
||
for (var i=0; i<this.data.length; ++i) {
|
||
|
||
var segmentRadians = ((this.data[i][1] / total) * RG.TWOPI);
|
||
var radius = ((this.data[i][0] - prop['chart.ymin']) / (this.max - prop['chart.ymin'])) * this.radius;
|
||
radius = radius * prop['chart.animation.grow.multiplier'];
|
||
|
||
co.strokeStyle = prop['chart.strokestyle'];
|
||
co.fillStyle = prop['chart.colors'][0];
|
||
|
||
if (prop['chart.colors.sequential']) {
|
||
co.fillStyle = prop['chart.colors'][i];
|
||
}
|
||
|
||
co.beginPath(); // Begin the segment
|
||
|
||
var startAngle = (this.startRadians * prop['chart.animation.roundrobin.factor']) - RG.HALFPI + margin;
|
||
var endAngle = ((this.startRadians + segmentRadians) * prop['chart.animation.roundrobin.factor']) - RG.HALFPI - margin;
|
||
|
||
var exploded = this.getexploded(i, startAngle, endAngle, prop['chart.exploded']);
|
||
var explodedX = exploded[0];
|
||
var explodedY = exploded[1];
|
||
|
||
|
||
co.arc(
|
||
this.centerx + explodedX,
|
||
this.centery + explodedY,
|
||
prop['chart.animation.roundrobin.radius'] ? radius * prop['chart.animation.roundrobin.factor'] : radius,
|
||
startAngle,
|
||
endAngle,
|
||
0
|
||
);
|
||
co.lineTo(this.centerx + explodedX, this.centery + explodedY);
|
||
co.closePath(); // End the segment
|
||
|
||
co.stroke();
|
||
co.fill();
|
||
|
||
// Store the start and end angles
|
||
|
||
this.angles[i] = [
|
||
startAngle,
|
||
endAngle,
|
||
0,
|
||
radius,
|
||
this.centerx + explodedX,
|
||
this.centery + explodedY
|
||
];
|
||
|
||
sequentialIndex++;
|
||
this.startRadians += segmentRadians;
|
||
}
|
||
} else {
|
||
|
||
var sequentialColorIndex = 0;
|
||
|
||
/*******************************************************
|
||
* Draw regular segments here
|
||
*******************************************************/
|
||
for (var i=0; i<this.data.length; ++i) {
|
||
|
||
var segmentRadians = (1 / this.data.length) * RG.TWOPI;
|
||
|
||
if (typeof this.data[i] == 'number') {
|
||
co.beginPath(); // Begin the segment
|
||
|
||
co.strokeStyle = prop['chart.strokestyle'];
|
||
co.fillStyle = prop['chart.colors'][0];
|
||
|
||
/*******************************************************
|
||
* This allows sequential colors
|
||
*******************************************************/
|
||
if (prop['chart.colors.sequential']) {
|
||
co.fillStyle = prop['chart.colors'][i];
|
||
}
|
||
|
||
var radius = ((this.data[i] - prop['chart.ymin']) / (this.max - prop['chart.ymin'])) * this.radius;
|
||
radius = radius * prop['chart.animation.grow.multiplier'];
|
||
|
||
var startAngle = (this.startRadians * prop['chart.animation.roundrobin.factor']) - RG.HALFPI + margin;
|
||
var endAngle = (this.startRadians * prop['chart.animation.roundrobin.factor']) + (segmentRadians * prop['chart.animation.roundrobin.factor']) - RG.HALFPI - margin;
|
||
|
||
var exploded = this.getexploded(i, startAngle, endAngle, prop['chart.exploded']);
|
||
var explodedX = exploded[0];
|
||
var explodedY = exploded[1];
|
||
|
||
co.arc(this.centerx + explodedX,
|
||
this.centery + explodedY,
|
||
prop['chart.animation.roundrobin.radius'] ? radius * prop['chart.animation.roundrobin.factor'] : radius,
|
||
startAngle,
|
||
endAngle,
|
||
0);
|
||
co.lineTo(this.centerx + explodedX, this.centery + explodedY);
|
||
co.closePath(); // End the segment
|
||
co.stroke();
|
||
co.fill();
|
||
|
||
// This skirts a double-stroke bug
|
||
co.beginPath();
|
||
|
||
if (endAngle == 0) {
|
||
//endAngle = RG.TWOPI;
|
||
}
|
||
|
||
// Store the start and end angles
|
||
this.angles[i] = [
|
||
startAngle,
|
||
endAngle,
|
||
0,
|
||
radius * prop['chart.animation.roundrobin.factor'],
|
||
this.centerx + explodedX,
|
||
this.centery + explodedY
|
||
];
|
||
|
||
sequentialIndex++;
|
||
|
||
/*******************************************************
|
||
* Draw a stacked segment
|
||
*******************************************************/
|
||
} else if (typeof(this.data[i]) == 'object') {
|
||
|
||
var margin = prop['chart.margin'] / (180 / RG.PI);
|
||
|
||
|
||
// Initialise the angles2 array
|
||
if (!this.angles2[i]) {
|
||
this.angles2[i] = [];
|
||
}
|
||
|
||
|
||
for (var j=0; j<this.data[i].length; ++j) {
|
||
|
||
var startAngle = (this.startRadians * prop['chart.animation.roundrobin.factor']) - RG.HALFPI + margin;
|
||
var endAngle = (this.startRadians * prop['chart.animation.roundrobin.factor'])+ (segmentRadians * prop['chart.animation.roundrobin.factor']) - RG.HALFPI - margin;
|
||
|
||
var exploded = this.getexploded(i, startAngle, endAngle, prop['chart.exploded']);
|
||
var explodedX = exploded[0];
|
||
var explodedY = exploded[1];
|
||
|
||
co.strokeStyle = prop['chart.strokestyle'];
|
||
co.fillStyle = prop['chart.colors'][j];
|
||
|
||
// This facilitates sequential color support
|
||
if (prop['chart.colors.sequential']) {
|
||
co.fillStyle = prop['chart.colors'][sequentialColorIndex++];
|
||
}
|
||
|
||
if (j == 0) {
|
||
co.beginPath(); // Begin the segment
|
||
var startRadius = 0;
|
||
var endRadius = ((this.data[i][j] - prop['chart.ymin']) / (this.max - prop['chart.ymin'])) * this.radius;
|
||
endRadius = endRadius * prop['chart.animation.grow.multiplier'];
|
||
|
||
co.arc(this.centerx + explodedX,
|
||
this.centery + explodedY,
|
||
prop['chart.animation.roundrobin.radius'] ? endRadius * prop['chart.animation.roundrobin.factor'] : endRadius,
|
||
startAngle,
|
||
endAngle,
|
||
0);
|
||
co.lineTo(this.centerx + explodedX, this.centery + explodedY);
|
||
co.closePath(); // End the segment
|
||
co.stroke();
|
||
co.fill();
|
||
|
||
this.angles[sequentialIndex++] = [
|
||
startAngle,
|
||
endAngle,
|
||
0,
|
||
endRadius * prop['chart.animation.roundrobin.factor'],
|
||
this.centerx + explodedX,
|
||
this.centery + explodedY
|
||
];
|
||
|
||
this.angles2[i][j] = [
|
||
startAngle,
|
||
endAngle,
|
||
0,
|
||
endRadius * prop['chart.animation.roundrobin.factor'],
|
||
this.centerx + explodedX,
|
||
this.centery + explodedY
|
||
];
|
||
|
||
} else {
|
||
|
||
co.beginPath(); // Begin the segment
|
||
|
||
var startRadius = endRadius; // This comes from the prior iteration of this loop
|
||
var endRadius = (((this.data[i][j] - prop['chart.ymin']) / (this.max - prop['chart.ymin'])) * this.radius) + startRadius;
|
||
endRadius = endRadius * prop['chart.animation.grow.multiplier'];
|
||
|
||
co.arc(this.centerx + explodedX,
|
||
this.centery + explodedY,
|
||
startRadius * prop['chart.animation.roundrobin.factor'],
|
||
startAngle,
|
||
endAngle,
|
||
0);
|
||
|
||
co.arc(this.centerx + explodedX,
|
||
this.centery + explodedY,
|
||
endRadius * prop['chart.animation.roundrobin.factor'],
|
||
endAngle,
|
||
startAngle,
|
||
true);
|
||
|
||
co.closePath(); // End the segment
|
||
co.stroke();
|
||
co.fill();
|
||
|
||
|
||
this.angles[sequentialIndex++] = [
|
||
startAngle,
|
||
endAngle,
|
||
startRadius * prop['chart.animation.roundrobin.factor'],
|
||
endRadius * prop['chart.animation.roundrobin.factor'],
|
||
this.centerx + explodedX,
|
||
this.centery + explodedY
|
||
];
|
||
|
||
this.angles2[i][j] = [
|
||
startAngle,
|
||
endAngle,
|
||
startRadius * prop['chart.animation.roundrobin.factor'],
|
||
endRadius * prop['chart.animation.roundrobin.factor'],
|
||
this.centerx + explodedX,
|
||
this.centery + explodedY
|
||
];
|
||
}
|
||
}
|
||
}
|
||
|
||
this.startRadians += segmentRadians;
|
||
}
|
||
}
|
||
|
||
// Turn off the transparency
|
||
if (prop['chart.colors.alpha']) {
|
||
co.globalAlpha = 1;
|
||
}
|
||
|
||
// Draw the title if any has been set
|
||
if (prop['chart.title']) {
|
||
RG.drawTitle(
|
||
this,
|
||
prop['chart.title'],
|
||
(ca.height / 2) - this.radius,
|
||
this.centerx,
|
||
prop['chart.title.size'] ? prop['chart.title.size'] : prop['chart.text.size'] + 2
|
||
);
|
||
}
|
||
};
|
||
|
||
|
||
|
||
|
||
/**
|
||
* Unsuprisingly, draws the labels
|
||
*/
|
||
this.drawLabels =
|
||
this.DrawLabels = function ()
|
||
{
|
||
co.lineWidth = 1;
|
||
var key = prop['chart.key'];
|
||
|
||
if (key && key.length) {
|
||
RG.DrawKey(this, key, prop['chart.colors']);
|
||
}
|
||
|
||
// Set the color to black
|
||
co.fillStyle = prop['chart.text.color'];
|
||
co.strokeStyle = 'black';
|
||
|
||
var radius = this.radius,
|
||
font = prop['chart.text.font'],
|
||
size = prop['chart.text.size'],
|
||
axes = prop['chart.labels.axes'].toLowerCase(),
|
||
decimals = prop['chart.scale.decimals'],
|
||
units_pre = prop['chart.units.pre'],
|
||
units_post = prop['chart.units.post'],
|
||
centerx = this.centerx,
|
||
centery = this.centery + (prop['chart.variant'].indexOf('3d') !== -1 ? prop['chart.variant.threed.depth'] : 0);
|
||
|
||
// Draw any circular labels
|
||
if (typeof prop['chart.labels'] == 'object' && prop['chart.labels']) {
|
||
this.DrawCircularLabels(co, prop['chart.labels'], font, size, radius + 10);
|
||
}
|
||
|
||
|
||
// Size can be specified separately for the scale now
|
||
if (typeof(prop['chart.text.size.scale']) == 'number') {
|
||
size = prop['chart.text.size.scale'];
|
||
}
|
||
|
||
|
||
var color = 'rgba(255,255,255,0.8)';
|
||
|
||
// The "North" axis labels
|
||
if (axes.indexOf('n') > -1) {
|
||
for (var i=0; i<prop['chart.labels.count']; ++i) {
|
||
RG.text2(this, {
|
||
'font':font,
|
||
'size':size,
|
||
'x':centerx - 10,
|
||
'y':centery - (radius * ((i+1) / prop['chart.labels.count'])),
|
||
'text':this.scale2.labels[i],
|
||
'valign':'center',
|
||
'halign':'right',
|
||
'bounding':true,
|
||
'boundingFill':color,
|
||
'boundingStroke':prop['chart.labels.boxed'] ? 'black' : 'rgba(0,0,0,0)',
|
||
'tag': 'scale'
|
||
});
|
||
}
|
||
}
|
||
|
||
// The "South" axis labels
|
||
if (axes.indexOf('s') > -1) {
|
||
for (var i=0; i<prop['chart.labels.count']; ++i) {
|
||
RG.Text2(this, {
|
||
'font':font,
|
||
'size':size,
|
||
'x':centerx - 10,
|
||
'y':centery + (radius * ((i+1) / prop['chart.labels.count'])),
|
||
'text':this.scale2.labels[i],
|
||
'valign':'center',
|
||
'halign':'right',
|
||
'bounding':true,
|
||
'boundingFill':color,
|
||
'boundingStroke':prop['chart.labels.boxed'] ? 'black' : 'rgba(0,0,0,0)',
|
||
'tag': 'scale'
|
||
});
|
||
}
|
||
}
|
||
|
||
// The "East" axis labels
|
||
if (axes.indexOf('e') > -1) {
|
||
for (var i=0; i<prop['chart.labels.count']; ++i) {
|
||
RG.Text2(this, {
|
||
'font':font,
|
||
'size':size,
|
||
'x':centerx + (radius * ((i+1) / prop['chart.labels.count'])),
|
||
'y':centery + 10,
|
||
'text':this.scale2.labels[i],
|
||
'valign':'top',
|
||
'halign':'center',
|
||
'bounding':true,
|
||
'boundingFill':color,
|
||
'boundingStroke':prop['chart.labels.boxed'] ? 'black' : 'rgba(0,0,0,0)',
|
||
'tag': 'scale'
|
||
});
|
||
}
|
||
}
|
||
|
||
// The "West" axis labels
|
||
if (axes.indexOf('w') > -1) {
|
||
for (var i=0; i<prop['chart.labels.count']; ++i) {
|
||
RG.Text2(this, {
|
||
'font':font,
|
||
'size':size,
|
||
'x':centerx - (radius * ((i+1) / prop['chart.labels.count'])),
|
||
'y':centery + 10,
|
||
'text':this.scale2.labels[i],
|
||
'valign':'top',
|
||
'halign':'center',
|
||
'bounding':true,
|
||
'boundingFill':color,
|
||
'boundingStroke':prop['chart.labels.boxed'] ? 'black' : 'rgba(0,0,0,0)',
|
||
'tag': 'scale'
|
||
});
|
||
}
|
||
}
|
||
|
||
if (RG.trim(axes).length > 0) {
|
||
RG.Text2(this, {
|
||
'font':font,
|
||
'size':size,
|
||
'x':centerx,
|
||
'y':centery,
|
||
'text':typeof(prop['chart.ymin']) == 'number' ? RG.number_format(this, Number(prop['chart.ymin']).toFixed(prop['chart.scale.decimals']), units_pre, units_post) : '0',
|
||
'valign':'center',
|
||
'halign':'center',
|
||
'bounding':true,
|
||
'boundingFill':color,
|
||
'boundingStroke':prop['chart.labels.boxed'] ? 'black' : 'rgba(0,0,0,0)',
|
||
'tag': 'scale'
|
||
});
|
||
}
|
||
};
|
||
|
||
|
||
|
||
|
||
/**
|
||
* Draws the circular labels that go around the charts
|
||
*
|
||
* @param labels array The labels that go around the chart
|
||
*/
|
||
this.drawCircularLabels =
|
||
this.DrawCircularLabels = function (co, labels, font, size, radius)
|
||
{
|
||
var variant = prop['chart.variant'],
|
||
position = prop['chart.labels.position'],
|
||
radius = radius + 5 + prop['chart.labels.offset'],
|
||
centerx = this.centerx,
|
||
centery = this.centery + (prop['chart.variant'].indexOf('3d') !== -1 ? prop['chart.variant.threed.depth'] : 0),
|
||
labelsColor = prop['chart.labels.color'] || prop['chart.text.color']
|
||
|
||
for (var i=0; i<labels.length; ++i) {
|
||
if (typeof(variant) == 'string' && variant.indexOf('non-equi-angular') !== -1) {
|
||
var a = Number(this.angles[i][0]) + ((this.angles[i][1] - this.angles[i][0]) / 2);
|
||
} else {
|
||
var a = (RG.TWOPI / labels.length) * (i + 1) - (RG.TWOPI / (labels.length * 2));
|
||
var a = a - RG.HALFPI + (prop['chart.labels.position'] == 'edge' ? ((RG.TWOPI / labels.length) / 2) : 0);
|
||
}
|
||
|
||
var x = centerx + (ma.cos(a) * radius);
|
||
var y = centery + (ma.sin(a) * radius);
|
||
|
||
// Horizontal alignment
|
||
if (x > centerx) {
|
||
halign = 'left';
|
||
} else if (Math.round(x) == centerx) {
|
||
halign = 'center';
|
||
} else {
|
||
halign = 'right';
|
||
}
|
||
|
||
RG.text2(this, {
|
||
'color': labelsColor,
|
||
'font':font,
|
||
'size':size,
|
||
'x':x,
|
||
'y':y,
|
||
'text':String(labels[i]),
|
||
'halign':halign,
|
||
'valign':'center',
|
||
'tag': 'labels'
|
||
});
|
||
}
|
||
};
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
/**
|
||
* This function is for use with circular graph types, eg the Pie or Rose. Pass it your event object
|
||
* and it will pass you back the corresponding segment details as an array:
|
||
*
|
||
* [x, y, r, startAngle, endAngle]
|
||
*
|
||
* Angles are measured in degrees, and are measured from the "east" axis (just like the canvas).
|
||
*
|
||
* @param object e Your event object
|
||
* @param object Options (OPTIONAL):
|
||
* radius - whether to take into account
|
||
* the radius of the segment
|
||
*/
|
||
this.getShape =
|
||
this.getSegment = function (e)
|
||
{
|
||
RG.fixEventObject(e);
|
||
|
||
var angles = this.angles;
|
||
var ret = [];
|
||
var opt = arguments[1] ? arguments[1] : {radius: true};
|
||
|
||
/**
|
||
* Go through all of the angles checking each one
|
||
*/
|
||
for (var i=0; i<angles.length ; ++i) {
|
||
|
||
var angleStart = angles[i][0];
|
||
var angleEnd = angles[i][1];
|
||
var radiusStart = opt.radius === false ? 0 : angles[i][2];
|
||
var radiusEnd = opt.radius === false ? this.radius : angles[i][3];
|
||
var centerX = angles[i][4];
|
||
var centerY = angles[i][5];// - (prop['chart.variant'].indexOf('3d') !== -1 ? prop['chart.variant.threed.depth'] : 0);
|
||
var mouseXY = RG.getMouseXY(e);
|
||
var mouseX = mouseXY[0] - centerX;
|
||
var mouseY = mouseXY[1] - centerY;
|
||
|
||
// New click testing (the 0.01 is there because Opera doesn't like 0 as the radius)
|
||
co.beginPath();
|
||
co.arc(centerX, centerY, radiusStart ? radiusStart : 0.01, angleStart, angleEnd, false);
|
||
co.arc(centerX, centerY, radiusEnd, angleEnd, angleStart, true);
|
||
co.closePath();
|
||
|
||
// No stroke() or fill()
|
||
|
||
|
||
if (co.isPointInPath(mouseXY[0], mouseXY[1])) {
|
||
|
||
angles[i][6] = i;
|
||
|
||
if (RG.parseTooltipText) {
|
||
var tooltip = RG.parseTooltipText(prop['chart.tooltips'], angles[i][6]);
|
||
}
|
||
|
||
// Add the textual keys
|
||
angles[i]['object'] = this;
|
||
angles[i]['x'] = angles[i][4];
|
||
angles[i]['y'] = angles[i][5];
|
||
angles[i]['angle.start'] = angles[i][0];
|
||
angles[i]['angle.end'] = angles[i][1];
|
||
angles[i]['radius.start'] = angles[i][2];
|
||
angles[i]['radius.end'] = angles[i][3];
|
||
angles[i]['index'] = angles[i][6];
|
||
angles[i]['tooltip'] = tooltip ? tooltip : null;
|
||
|
||
return angles[i];
|
||
}
|
||
}
|
||
|
||
return null;
|
||
};
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
/**
|
||
* Returns any exploded for a particular segment
|
||
*/
|
||
this.getExploded =
|
||
this.getexploded = function (index, startAngle, endAngle, exploded)
|
||
{
|
||
var explodedx, explodedy;
|
||
|
||
/**
|
||
* Retrieve any exploded - the exploded can be an array of numbers or a single number
|
||
* (which is applied to all segments)
|
||
*/
|
||
if (typeof(exploded) == 'object' && typeof(exploded[index]) == 'number') {
|
||
explodedx = Math.cos(((endAngle - startAngle) / 2) + startAngle) * exploded[index];
|
||
explodedy = Math.sin(((endAngle - startAngle) / 2) + startAngle) * exploded[index];
|
||
|
||
} else if (typeof(exploded) == 'number') {
|
||
explodedx = Math.cos(((endAngle - startAngle) / 2) + startAngle) * exploded;
|
||
explodedy = Math.sin(((endAngle - startAngle) / 2) + startAngle) * exploded;
|
||
|
||
} else {
|
||
explodedx = 0;
|
||
explodedy = 0;
|
||
}
|
||
|
||
return [explodedx, explodedy];
|
||
};
|
||
|
||
|
||
|
||
|
||
/**
|
||
* This function facilitates the installation of tooltip event listeners if
|
||
* tooltips are defined.
|
||
*/
|
||
this.allowTooltips =
|
||
this.AllowTooltips = function ()
|
||
{
|
||
// Preload any tooltip images that are used in the tooltips
|
||
RG.PreLoadTooltipImages(this);
|
||
|
||
|
||
/**
|
||
* This installs the window mousedown event listener that lears any
|
||
* highlight that may be visible.
|
||
*/
|
||
RG.InstallWindowMousedownTooltipListener(this);
|
||
|
||
|
||
/**
|
||
* This installs the canvas mousemove event listener. This function
|
||
* controls the pointer shape.
|
||
*/
|
||
RG.InstallCanvasMousemoveTooltipListener(this);
|
||
|
||
|
||
/**
|
||
* This installs the canvas mouseup event listener. This is the
|
||
* function that actually shows the appropriate tooltip (if any).
|
||
*/
|
||
RG.InstallCanvasMouseupTooltipListener(this);
|
||
};
|
||
|
||
|
||
|
||
|
||
/**
|
||
* Each object type has its own Highlight() function which highlights the appropriate shape
|
||
*
|
||
* @param object shape The shape to highlight
|
||
*/
|
||
this.highlight =
|
||
this.Highlight = function (shape)
|
||
{
|
||
if (prop['chart.tooltips.highlight']) {
|
||
// Add the new segment highlight
|
||
co.beginPath();
|
||
|
||
co.strokeStyle = prop['chart.highlight.stroke'];
|
||
co.fillStyle = prop['chart.highlight.fill'];
|
||
|
||
co.arc(
|
||
shape['x'],
|
||
shape['y'],//- (prop['chart.variant'].indexOf('3d') !== -1 ? prop['chart.variant.threed.depth'] : 0),
|
||
shape['radius.end'],
|
||
shape['angle.start'],
|
||
shape['angle.end'],
|
||
false
|
||
);
|
||
|
||
if (shape['radius.start'] > 0) {
|
||
co.arc(
|
||
shape['x'],
|
||
shape['y'],
|
||
shape['radius.start'],
|
||
shape['angle.end'],
|
||
shape['angle.start'],
|
||
true
|
||
);
|
||
} else {
|
||
co.lineTo(
|
||
shape['x'],
|
||
shape['y']
|
||
);
|
||
}
|
||
co.closePath();
|
||
|
||
co.stroke();
|
||
co.fill();
|
||
}
|
||
};
|
||
|
||
|
||
|
||
|
||
/**
|
||
* The getObjectByXY() worker method. Don't call this call:
|
||
*
|
||
* RGraph.ObjectRegistry.getObjectByXY(e)
|
||
*
|
||
* @param object e The event object
|
||
*/
|
||
this.getObjectByXY = function (e)
|
||
{
|
||
var mouseXY = RGraph.getMouseXY(e);
|
||
|
||
// Work out the radius
|
||
var radius = RG.getHypLength(this.centerx, this.centery, mouseXY[0], mouseXY[1]);
|
||
|
||
// Account for the 3D stretching effect
|
||
if (prop['chart.variant'].indexOf('3d') !== -1) {
|
||
radius /= -1;
|
||
}
|
||
|
||
if (
|
||
mouseXY[0] > (this.centerx - this.radius)
|
||
&& mouseXY[0] < (this.centerx + this.radius)
|
||
&& mouseXY[1] > (this.centery - this.radius)
|
||
&& mouseXY[1] < (this.centery + this.radius)
|
||
&& radius <= this.radius
|
||
) {
|
||
|
||
return this;
|
||
}
|
||
};
|
||
|
||
|
||
|
||
|
||
/**
|
||
* This function positions a tooltip when it is displayed
|
||
*
|
||
* @param obj object The chart object
|
||
* @param int x The X coordinate specified for the tooltip
|
||
* @param int y The Y coordinate specified for the tooltip
|
||
* @param objec tooltip The tooltips DIV element
|
||
*/
|
||
this.positionTooltip = function (obj, x, y, tooltip, idx)
|
||
{
|
||
var centerX = this.angles[idx][4],
|
||
centerY = this.angles[idx][5] - (prop['chart.variant'].indexOf('3d') !== -1 ? prop['chart.variant.threed.depth'] : 0),
|
||
radiusStart = this.angles[idx][2],
|
||
radiusEnd = this.angles[idx][3],
|
||
coordX = this.angles[idx][4],
|
||
coordY = this.angles[idx][5] - (prop['chart.variant'].indexOf('3d') !== -1 ? prop['chart.variant.threed.depth'] : 0),
|
||
angleStart = this.angles[idx][0],
|
||
angleEnd = this.angles[idx][1],
|
||
radius = ((radiusEnd - radiusStart) / 2) + radiusStart,
|
||
angleCenter = ((angleEnd - angleStart) / 2) + angleStart,
|
||
canvasXY = RG.getCanvasXY(this.canvas),
|
||
gutterLeft = this.gutterLeft,
|
||
gutterTop = this.gutterTop,
|
||
width = tooltip.offsetWidth,
|
||
height = tooltip.offsetHeight
|
||
|
||
// By default any overflow is hidden
|
||
tooltip.style.overflow = '';
|
||
|
||
// The arrow
|
||
var img = new Image();
|
||
img.src = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABEAAAAFCAYAAACjKgd3AAAARUlEQVQYV2NkQAN79+797+RkhC4M5+/bd47B2dmZEVkBCgcmgcsgbAaA9GA1BCSBbhAuA/AagmwQPgMIGgIzCD0M0AMMAEFVIAa6UQgcAAAAAElFTkSuQmCC';
|
||
img.style.position = 'absolute';
|
||
img.id = '__rgraph_tooltip_pointer__';
|
||
img.style.top = (tooltip.offsetHeight - 2) + 'px';
|
||
tooltip.appendChild(img);
|
||
|
||
// Reposition the tooltip if at the edges:
|
||
|
||
// LEFT edge
|
||
if ((canvasXY[0] + coordX + (Math.cos(angleCenter) * radius) - (width / 2)) < 10) {
|
||
tooltip.style.left = (canvasXY[0] + coordX + (Math.cos(angleCenter) * (radius * (prop['chart.variant'].indexOf('3d') !== -1 ? 1.5 : 1)) )- (width * 0.1)) + 'px';
|
||
tooltip.style.top = (canvasXY[1] + coordY + (Math.sin(angleCenter) * radius)- height - 5) + 'px';
|
||
img.style.left = ((width * 0.1) - 8.5) + 'px';
|
||
|
||
// RIGHT edge
|
||
} else if ((canvasXY[0] + coordX + (Math.cos(angleCenter) * radius) + (width / 2)) > (doc.body.offsetWidth - 10) ) {
|
||
tooltip.style.left = (canvasXY[0] + coordX + (Math.cos(angleCenter) * (radius * (prop['chart.variant'].indexOf('3d') !== -1 ? 1.5 : 1)) ) - (width * 0.9)) + 'px';
|
||
tooltip.style.top = (canvasXY[1] + coordY + (Math.sin(angleCenter) * radius)- height - 5) + 'px';
|
||
img.style.left = ((width * 0.9) - 8.5) + 'px';
|
||
|
||
// Default positioning - CENTERED
|
||
} else {
|
||
|
||
tooltip.style.left = (canvasXY[0] + coordX + (ma.cos(angleCenter) * (radius * (prop['chart.variant'].indexOf('3d') !== -1 ? 1.5 : 1) ) )- (width / 2)) + 'px';
|
||
tooltip.style.top = (canvasXY[1] + coordY + (ma.sin(angleCenter) * radius)- height - 5) + 'px';
|
||
img.style.left = ((width * 0.5) - 8.5) + 'px';
|
||
}
|
||
};
|
||
|
||
|
||
|
||
|
||
/**
|
||
* This method gives you the relevant radius for a particular value
|
||
*
|
||
* @param number value The relevant value to get the radius for
|
||
*/
|
||
this.getRadius = function (value)
|
||
{
|
||
// Range checking (the Rose minimum is always 0)
|
||
if (value < 0 || value > this.max) {
|
||
return null;
|
||
}
|
||
|
||
var r = (value / this.max) * this.radius;
|
||
|
||
return r;
|
||
};
|
||
|
||
|
||
|
||
|
||
/**
|
||
* This allows for easy specification of gradients
|
||
*/
|
||
this.parseColors = function ()
|
||
{
|
||
// Save the original colors so that they can be restored when the canvas is reset
|
||
if (this.original_colors.length === 0) {
|
||
this.original_colors['chart.colors'] = RG.array_clone(prop['chart.colors']);
|
||
this.original_colors['chart.key.colors'] = RG.array_clone(prop['chart.key.colors']);
|
||
this.original_colors['chart.text.color'] = RG.array_clone(prop['chart.text.color']);
|
||
this.original_colors['chart.title.color'] = RG.array_clone(prop['chart.title.color']);
|
||
this.original_colors['chart.highlight.stroke'] = RG.array_clone(prop['chart.highlight.stroke']);
|
||
this.original_colors['chart.highlight.fill'] = RG.array_clone(prop['chart.highlight.fill']);
|
||
}
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
for (var i=0; i<prop['chart.colors'].length; ++i) {
|
||
prop['chart.colors'][i] = this.parseSingleColorForGradient(prop['chart.colors'][i]);
|
||
}
|
||
|
||
/**
|
||
* Key colors
|
||
*/
|
||
if (!RG.is_null(prop['chart.key.colors'])) {
|
||
for (var i=0; i<prop['chart.key.colors'].length; ++i) {
|
||
prop['chart.key.colors'][i] = this.parseSingleColorForGradient(prop['chart.key.colors'][i]);
|
||
}
|
||
}
|
||
|
||
prop['chart.text.color'] = this.parseSingleColorForGradient(prop['chart.text.color']);
|
||
prop['chart.title.color'] = this.parseSingleColorForGradient(prop['chart.title.color']);
|
||
prop['chart.highlight.fill'] = this.parseSingleColorForGradient(prop['chart.highlight.fill']);
|
||
prop['chart.highlight.stroke'] = this.parseSingleColorForGradient(prop['chart.highlight.stroke']);
|
||
prop['chart.segment.highlight.stroke'] = this.parseSingleColorForGradient(prop['chart.segment.highlight.stroke']);
|
||
prop['chart.segment.highlight.fill'] = this.parseSingleColorForGradient(prop['chart.segment.highlight.fill']);
|
||
};
|
||
|
||
|
||
|
||
|
||
/**
|
||
* Use this function to reset the object to the post-constructor state. Eg reset colors if
|
||
* need be etc
|
||
*/
|
||
this.reset = function ()
|
||
{
|
||
};
|
||
|
||
|
||
|
||
|
||
/**
|
||
* This parses a single color value
|
||
*/
|
||
this.parseSingleColorForGradient = function (color)
|
||
{
|
||
if (!color || typeof(color) != 'string') {
|
||
return color;
|
||
}
|
||
|
||
if (color.match(/^gradient\((.*)\)$/i)) {
|
||
|
||
var parts = RegExp.$1.split(':');
|
||
|
||
// Create the gradient
|
||
//var grad = context.createLinearGradient(0,0,canvas.width,0);
|
||
var grad = co.createRadialGradient(this.centerx, this.centery, 0, this.centerx, this.centery, this.radius);
|
||
|
||
var diff = 1 / (parts.length - 1);
|
||
|
||
grad.addColorStop(0, RG.trim(parts[0]));
|
||
|
||
for (var j=1; j<parts.length; ++j) {
|
||
grad.addColorStop(j * diff, RG.trim(parts[j]));
|
||
}
|
||
}
|
||
|
||
return grad ? grad : color;
|
||
};
|
||
|
||
|
||
|
||
|
||
/**
|
||
* This function handles highlighting an entire data-series for the interactive
|
||
* key
|
||
*
|
||
* @param int index The index of the data series to be highlighted
|
||
*/
|
||
this.interactiveKeyHighlight = function (index)
|
||
{
|
||
var segments = this.angles2;
|
||
|
||
for (var i=0; i<this.angles2.length; i+=1) {
|
||
co.beginPath();
|
||
co.lineWidth = 2;
|
||
co.fillStyle = prop['chart.key.interactive.highlight.chart.fill'];
|
||
co.strokeStyle = prop['chart.key.interactive.highlight.chart.stroke'];
|
||
co.arc(segments[i][index][4], segments[i][index][5], segments[i][index][2], segments[i][index][0], segments[i][index][1], false);
|
||
co.arc(segments[i][index][4], segments[i][index][5], segments[i][index][3], segments[i][index][1], segments[i][index][0], true);
|
||
co.closePath();
|
||
co.fill();
|
||
co.stroke();
|
||
}
|
||
|
||
return/*
|
||
if (segments) {
|
||
for (var i=0; i<segments.length; i+=1) {
|
||
|
||
}
|
||
}
|
||
*/
|
||
};
|
||
|
||
|
||
|
||
|
||
/**
|
||
* Using a function to add events makes it easier to facilitate method chaining
|
||
*
|
||
* @param string type The type of even to add
|
||
* @param function func
|
||
*/
|
||
this.on = function (type, func)
|
||
{
|
||
if (type.substr(0,2) !== 'on') {
|
||
type = 'on' + type;
|
||
}
|
||
|
||
this[type] = func;
|
||
|
||
return this;
|
||
};
|
||
|
||
|
||
|
||
|
||
/**
|
||
* This function runs once only
|
||
* (put at the end of the file (before any effects))
|
||
*/
|
||
this.firstDrawFunc = function ()
|
||
{
|
||
};
|
||
|
||
|
||
|
||
|
||
/**
|
||
* Rose chart explode
|
||
*
|
||
* Explodes the Rose chart - gradually incrementing the size of the chart.explode property
|
||
*
|
||
* @param object Optional options for the effect. You can pass in frames here - such as:
|
||
* myRose.roundRobin({frames: 60}; function () {alert('Done!');})
|
||
* @param function A callback function which is called when the effect is finished
|
||
*/
|
||
this.explode = function ()
|
||
{
|
||
var obj = this;
|
||
var opt = arguments[0] || {};
|
||
var callback = arguments[1] || function (){};
|
||
var frames = opt.frames ? opt.frames : 30;
|
||
var frame = 0;
|
||
var explodedMax = ma.max(ca.width, ca.height);
|
||
var exploded = Number(this.Get('exploded'));
|
||
|
||
|
||
|
||
|
||
function iterator ()
|
||
{
|
||
exploded = (frame / frames) * explodedMax;
|
||
|
||
// Set the new value
|
||
obj.Set('exploded', exploded);
|
||
|
||
RG.clear(ca);
|
||
RG.redrawCanvas(ca);
|
||
|
||
if (frame++ < frames) {
|
||
RG.Effects.updateCanvas(iterator);
|
||
} else {
|
||
callback(obj);
|
||
}
|
||
}
|
||
|
||
|
||
|
||
|
||
iterator();
|
||
|
||
return this;
|
||
};
|
||
|
||
|
||
|
||
|
||
/**
|
||
* RoundRobin
|
||
*
|
||
* This effect is similar to the Pie chart RoundRobin effect
|
||
*
|
||
* @param object Optional options for the effect. You can pass in frames here - such as:
|
||
* myRose.roundRobin({frames: 60}; function () {alert('Done!');})
|
||
* @param function A callback function which is called when the effect is finished
|
||
*/
|
||
this.roundrobin =
|
||
this.roundRobin = function ()
|
||
{
|
||
var obj = this;
|
||
var opt = arguments[0] || {}
|
||
var frames = opt.frames || 30;
|
||
var frame = 0;
|
||
var original_margin = prop['chart.margin'];
|
||
var margin = (360 / this.data.length) / 2;
|
||
var callback = arguments[1] || function () {};
|
||
|
||
this.Set('chart.margin', margin);
|
||
this.Set('chart.animation.roundrobin.factor', 0);
|
||
|
||
function iterator ()
|
||
{
|
||
RG.clear(obj.canvas);
|
||
RG.redrawCanvas(obj.canvas);
|
||
|
||
if (frame++ < frames) {
|
||
obj.set('animation.roundrobin.factor', frame / frames);
|
||
obj.set('margin', (frame / frames) * original_margin);
|
||
RG.Effects.updateCanvas(iterator);
|
||
} else {
|
||
obj.set('animation.roundrobin.factor', 1);
|
||
obj.set('margin', original_margin);
|
||
|
||
callback(obj);
|
||
}
|
||
}
|
||
|
||
iterator();
|
||
|
||
return this;
|
||
};
|
||
|
||
|
||
|
||
|
||
/**
|
||
* Rose chart implode
|
||
*
|
||
* Implodes the Rose chart - gradually decreasing the size of the chart.explode property. It starts at the largest of
|
||
* the canvas width./height
|
||
*
|
||
* @param object Optional options for the effect. You can pass in frames here - such as:
|
||
* myRose.implode({frames: 60}; function () {alert('Done!');})
|
||
* @param function A callback function which is called when the effect is finished
|
||
*/
|
||
this.implode = function ()
|
||
{
|
||
var obj = this;
|
||
var opt = arguments[0] || {};
|
||
var callback = arguments[1] || function (){};
|
||
var frames = opt.frames || 30;
|
||
var frame = 0;
|
||
var explodedMax = ma.max(ca.width, ca.height);
|
||
var exploded = explodedMax;
|
||
|
||
|
||
|
||
function iterator ()
|
||
{
|
||
exploded = explodedMax - ((frame / frames) * explodedMax);
|
||
|
||
// Set the new value
|
||
obj.Set('exploded', exploded);
|
||
|
||
RG.clear(ca);
|
||
RG.redrawCanvas(ca);
|
||
|
||
if (frame++ < frames) {
|
||
RG.Effects.updateCanvas(iterator);
|
||
} else {
|
||
RG.clear(obj.canvas);
|
||
RG.redrawCanvas(obj.canvas);
|
||
callback(obj);
|
||
}
|
||
}
|
||
|
||
iterator();
|
||
|
||
return this;
|
||
};
|
||
|
||
|
||
|
||
|
||
/**
|
||
* Rose chart Grow
|
||
*
|
||
* This effect gradually increases the size of the Rose chart
|
||
*
|
||
* @param object Optional options for the effect. You can pass in frames here - such as:
|
||
* myRose.grow({frames: 60}; function () {alert('Done!');})
|
||
* @param function A callback function which is called when the effect is finished
|
||
*/
|
||
this.grow = function ()
|
||
{
|
||
var obj = this;
|
||
var opt = arguments[0] || {};
|
||
var callback = arguments[1] || function (){};
|
||
var frames = opt.frames || 30;
|
||
var frame = 0;
|
||
|
||
function iterator ()
|
||
{
|
||
obj.Set('animation.grow.multiplier', frame / frames);
|
||
|
||
RG.clear(ca);
|
||
RG.redrawCanvas(ca);
|
||
|
||
if (frame < frames) {
|
||
frame++;
|
||
RG.Effects.updateCanvas(iterator);
|
||
} else {
|
||
callback(obj);
|
||
}
|
||
}
|
||
|
||
iterator();
|
||
|
||
return this;
|
||
};
|
||
|
||
|
||
|
||
|
||
/**
|
||
* Register this object
|
||
*/
|
||
RG.Register(this);
|
||
|
||
|
||
|
||
|
||
/**
|
||
* This is the 'end' of the constructor so if the first argument
|
||
* contains configuration data - handle that.
|
||
*/
|
||
if (parseConfObjectForOptions) {
|
||
RG.parseObjectStyleConfig(this, conf.options);
|
||
}
|
||
};
|