extraction-interface: geotemco/lib/flot/jquery.flot.pie.js annotate

annotate geotemco/lib/flot/jquery.flot.pie.js @ 44:3163d8ca0b62 default

closing default branch, we use extractapp branch

author	Zoe Hong <zhong@mpiwg-berlin.mpg.de>
date	Fri, 13 Mar 2015 09:55:07 +0100
parents	b12c99b7c3f0
children

rev	line source
0 b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	1 /* Flot plugin for rendering pie charts.
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	2
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	3 Copyright (c) 2007-2013 IOLA and Ole Laursen.
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	4 Licensed under the MIT license.
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	5
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	6 The plugin assumes that each series has a single data value, and that each
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	7 value is a positive integer or zero. Negative numbers don't make sense for a
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	8 pie chart, and have unpredictable results. The values do NOT need to be
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	9 passed in as percentages; the plugin will calculate the total and per-slice
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	10 percentages internally.
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	11
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	12 * Created by Brian Medendorp
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	13
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	14 * Updated with contributions from btburnett3, Anthony Aragues and Xavi Ivars
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	15
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	16 The plugin supports these options:
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	17
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	18 series: {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	19 pie: {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	20 show: true/false
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	21 radius: 0-1 for percentage of fullsize, or a specified pixel length, or 'auto'
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	22 innerRadius: 0-1 for percentage of fullsize or a specified pixel length, for creating a donut effect
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	23 startAngle: 0-2 factor of PI used for starting angle (in radians) i.e 3/2 starts at the top, 0 and 2 have the same result
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	24 tilt: 0-1 for percentage to tilt the pie, where 1 is no tilt, and 0 is completely flat (nothing will show)
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	25 offset: {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	26 top: integer value to move the pie up or down
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	27 left: integer value to move the pie left or right, or 'auto'
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	28 },
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	29 stroke: {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	30 color: any hexidecimal color value (other formats may or may not work, so best to stick with something like '#FFF')
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	31 width: integer pixel width of the stroke
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	32 },
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	33 label: {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	34 show: true/false, or 'auto'
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	35 formatter: a user-defined function that modifies the text/style of the label text
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	36 radius: 0-1 for percentage of fullsize, or a specified pixel length
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	37 background: {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	38 color: any hexidecimal color value (other formats may or may not work, so best to stick with something like '#000')
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	39 opacity: 0-1
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	40 },
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	41 threshold: 0-1 for the percentage value at which to hide labels (if they're too small)
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	42 },
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	43 combine: {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	44 threshold: 0-1 for the percentage value at which to combine slices (if they're too small)
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	45 color: any hexidecimal color value (other formats may or may not work, so best to stick with something like '#CCC'), if null, the plugin will automatically use the color of the first slice to be combined
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	46 label: any text value of what the combined slice should be labeled
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	47 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	48 highlight: {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	49 opacity: 0-1
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	50 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	51 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	52 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	53
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	54 More detail and specific examples can be found in the included HTML file.
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	55
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	56 */
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	57
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	58 (function($) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	59
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	60 // Maximum redraw attempts when fitting labels within the plot
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	61
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	62 var REDRAW_ATTEMPTS = 10;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	63
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	64 // Factor by which to shrink the pie when fitting labels within the plot
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	65
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	66 var REDRAW_SHRINK = 0.95;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	67
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	68 function init(plot) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	69
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	70 var canvas = null,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	71 target = null,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	72 options = null,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	73 maxRadius = null,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	74 centerLeft = null,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	75 centerTop = null,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	76 processed = false,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	77 ctx = null;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	78
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	79 // interactive variables
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	80
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	81 var highlights = [];
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	82
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	83 // add hook to determine if pie plugin in enabled, and then perform necessary operations
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	84
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	85 plot.hooks.processOptions.push(function(plot, options) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	86 if (options.series.pie.show) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	87
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	88 options.grid.show = false;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	89
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	90 // set labels.show
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	91
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	92 if (options.series.pie.label.show == "auto") {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	93 if (options.legend.show) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	94 options.series.pie.label.show = false;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	95 } else {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	96 options.series.pie.label.show = true;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	97 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	98 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	99
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	100 // set radius
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	101
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	102 if (options.series.pie.radius == "auto") {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	103 if (options.series.pie.label.show) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	104 options.series.pie.radius = 3/4;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	105 } else {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	106 options.series.pie.radius = 1;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	107 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	108 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	109
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	110 // ensure sane tilt
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	111
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	112 if (options.series.pie.tilt > 1) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	113 options.series.pie.tilt = 1;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	114 } else if (options.series.pie.tilt < 0) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	115 options.series.pie.tilt = 0;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	116 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	117 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	118 });
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	119
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	120 plot.hooks.bindEvents.push(function(plot, eventHolder) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	121 var options = plot.getOptions();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	122 if (options.series.pie.show) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	123 if (options.grid.hoverable) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	124 eventHolder.unbind("mousemove").mousemove(onMouseMove);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	125 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	126 if (options.grid.clickable) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	127 eventHolder.unbind("click").click(onClick);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	128 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	129 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	130 });
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	131
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	132 plot.hooks.processDatapoints.push(function(plot, series, data, datapoints) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	133 var options = plot.getOptions();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	134 if (options.series.pie.show) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	135 processDatapoints(plot, series, data, datapoints);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	136 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	137 });
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	138
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	139 plot.hooks.drawOverlay.push(function(plot, octx) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	140 var options = plot.getOptions();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	141 if (options.series.pie.show) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	142 drawOverlay(plot, octx);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	143 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	144 });
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	145
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	146 plot.hooks.draw.push(function(plot, newCtx) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	147 var options = plot.getOptions();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	148 if (options.series.pie.show) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	149 draw(plot, newCtx);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	150 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	151 });
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	152
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	153 function processDatapoints(plot, series, datapoints) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	154 if (!processed) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	155 processed = true;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	156 canvas = plot.getCanvas();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	157 target = $(canvas).parent();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	158 options = plot.getOptions();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	159 plot.setData(combine(plot.getData()));
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	160 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	161 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	162
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	163 function combine(data) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	164
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	165 var total = 0,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	166 combined = 0,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	167 numCombined = 0,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	168 color = options.series.pie.combine.color,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	169 newdata = [];
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	170
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	171 // Fix up the raw data from Flot, ensuring the data is numeric
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	172
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	173 for (var i = 0; i < data.length; ++i) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	174
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	175 var value = data[i].data;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	176
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	177 // If the data is an array, we'll assume that it's a standard
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	178 // Flot x-y pair, and are concerned only with the second value.
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	179
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	180 // Note how we use the original array, rather than creating a
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	181 // new one; this is more efficient and preserves any extra data
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	182 // that the user may have stored in higher indexes.
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	183
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	184 if ($.isArray(value) && value.length == 1) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	185 value = value[0];
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	186 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	187
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	188 if ($.isArray(value)) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	189 // Equivalent to $.isNumeric() but compatible with jQuery < 1.7
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	190 if (!isNaN(parseFloat(value[1])) && isFinite(value[1])) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	191 value[1] = +value[1];
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	192 } else {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	193 value[1] = 0;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	194 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	195 } else if (!isNaN(parseFloat(value)) && isFinite(value)) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	196 value = [1, +value];
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	197 } else {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	198 value = [1, 0];
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	199 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	200
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	201 data[i].data = [value];
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	202 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	203
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	204 // Sum up all the slices, so we can calculate percentages for each
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	205
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	206 for (var i = 0; i < data.length; ++i) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	207 total += data[i].data[0][1];
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	208 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	209
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	210 // Count the number of slices with percentages below the combine
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	211 // threshold; if it turns out to be just one, we won't combine.
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	212
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	213 for (var i = 0; i < data.length; ++i) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	214 var value = data[i].data[0][1];
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	215 if (value / total <= options.series.pie.combine.threshold) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	216 combined += value;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	217 numCombined++;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	218 if (!color) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	219 color = data[i].color;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	220 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	221 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	222 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	223
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	224 for (var i = 0; i < data.length; ++i) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	225 var value = data[i].data[0][1];
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	226 if (numCombined < 2 \|\| value / total > options.series.pie.combine.threshold) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	227 newdata.push(
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	228 $.extend(data[i], { /* extend to allow keeping all other original data values
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	229 and using them e.g. in labelFormatter. */
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	230 data: [[1, value]],
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	231 color: data[i].color,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	232 label: data[i].label,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	233 angle: value * Math.PI * 2 / total,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	234 percent: value / (total / 100)
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	235 })
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	236 );
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	237 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	238 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	239
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	240 if (numCombined > 1) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	241 newdata.push({
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	242 data: [[1, combined]],
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	243 color: color,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	244 label: options.series.pie.combine.label,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	245 angle: combined * Math.PI * 2 / total,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	246 percent: combined / (total / 100)
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	247 });
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	248 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	249
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	250 return newdata;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	251 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	252
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	253 function draw(plot, newCtx) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	254
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	255 if (!target) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	256 return; // if no series were passed
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	257 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	258
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	259 var canvasWidth = plot.getPlaceholder().width(),
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	260 canvasHeight = plot.getPlaceholder().height(),
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	261 legendWidth = target.children().filter(".legend").children().width() \|\| 0;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	262
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	263 ctx = newCtx;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	264
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	265 // WARNING: HACK! REWRITE THIS CODE AS SOON AS POSSIBLE!
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	266
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	267 // When combining smaller slices into an 'other' slice, we need to
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	268 // add a new series. Since Flot gives plugins no way to modify the
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	269 // list of series, the pie plugin uses a hack where the first call
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	270 // to processDatapoints results in a call to setData with the new
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	271 // list of series, then subsequent processDatapoints do nothing.
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	272
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	273 // The plugin-global 'processed' flag is used to control this hack;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	274 // it starts out false, and is set to true after the first call to
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	275 // processDatapoints.
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	276
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	277 // Unfortunately this turns future setData calls into no-ops; they
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	278 // call processDatapoints, the flag is true, and nothing happens.
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	279
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	280 // To fix this we'll set the flag back to false here in draw, when
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	281 // all series have been processed, so the next sequence of calls to
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	282 // processDatapoints once again starts out with a slice-combine.
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	283 // This is really a hack; in 0.9 we need to give plugins a proper
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	284 // way to modify series before any processing begins.
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	285
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	286 processed = false;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	287
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	288 // calculate maximum radius and center point
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	289
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	290 maxRadius = Math.min(canvasWidth, canvasHeight / options.series.pie.tilt) / 2;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	291 centerTop = canvasHeight / 2 + options.series.pie.offset.top;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	292 centerLeft = canvasWidth / 2;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	293
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	294 if (options.series.pie.offset.left == "auto") {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	295 if (options.legend.position.match("w")) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	296 centerLeft += legendWidth / 2;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	297 } else {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	298 centerLeft -= legendWidth / 2;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	299 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	300 if (centerLeft < maxRadius) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	301 centerLeft = maxRadius;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	302 } else if (centerLeft > canvasWidth - maxRadius) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	303 centerLeft = canvasWidth - maxRadius;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	304 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	305 } else {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	306 centerLeft += options.series.pie.offset.left;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	307 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	308
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	309 var slices = plot.getData(),
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	310 attempts = 0;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	311
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	312 // Keep shrinking the pie's radius until drawPie returns true,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	313 // indicating that all the labels fit, or we try too many times.
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	314
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	315 do {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	316 if (attempts > 0) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	317 maxRadius *= REDRAW_SHRINK;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	318 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	319 attempts += 1;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	320 clear();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	321 if (options.series.pie.tilt <= 0.8) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	322 drawShadow();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	323 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	324 } while (!drawPie() && attempts < REDRAW_ATTEMPTS)
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	325
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	326 if (attempts >= REDRAW_ATTEMPTS) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	327 clear();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	328 target.prepend("<div class='error'>Could not draw pie with labels contained inside canvas</div>");
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	329 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	330
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	331 if (plot.setSeries && plot.insertLegend) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	332 plot.setSeries(slices);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	333 plot.insertLegend();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	334 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	335
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	336 // we're actually done at this point, just defining internal functions at this point
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	337
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	338 function clear() {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	339 ctx.clearRect(0, 0, canvasWidth, canvasHeight);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	340 target.children().filter(".pieLabel, .pieLabelBackground").remove();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	341 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	342
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	343 function drawShadow() {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	344
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	345 var shadowLeft = options.series.pie.shadow.left;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	346 var shadowTop = options.series.pie.shadow.top;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	347 var edge = 10;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	348 var alpha = options.series.pie.shadow.alpha;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	349 var radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	350
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	351 if (radius >= canvasWidth / 2 - shadowLeft \|\| radius * options.series.pie.tilt >= canvasHeight / 2 - shadowTop \|\| radius <= edge) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	352 return; // shadow would be outside canvas, so don't draw it
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	353 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	354
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	355 ctx.save();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	356 ctx.translate(shadowLeft,shadowTop);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	357 ctx.globalAlpha = alpha;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	358 ctx.fillStyle = "#000";
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	359
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	360 // center and rotate to starting position
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	361
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	362 ctx.translate(centerLeft,centerTop);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	363 ctx.scale(1, options.series.pie.tilt);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	364
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	365 //radius -= edge;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	366
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	367 for (var i = 1; i <= edge; i++) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	368 ctx.beginPath();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	369 ctx.arc(0, 0, radius, 0, Math.PI * 2, false);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	370 ctx.fill();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	371 radius -= i;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	372 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	373
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	374 ctx.restore();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	375 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	376
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	377 function drawPie() {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	378
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	379 var startAngle = Math.PI * options.series.pie.startAngle;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	380 var radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	381
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	382 // center and rotate to starting position
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	383
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	384 ctx.save();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	385 ctx.translate(centerLeft,centerTop);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	386 ctx.scale(1, options.series.pie.tilt);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	387 //ctx.rotate(startAngle); // start at top; -- This doesn't work properly in Opera
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	388
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	389 // draw slices
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	390
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	391 ctx.save();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	392 var currentAngle = startAngle;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	393 for (var i = 0; i < slices.length; ++i) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	394 slices[i].startAngle = currentAngle;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	395 drawSlice(slices[i].angle, slices[i].color, true);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	396 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	397 ctx.restore();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	398
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	399 // draw slice outlines
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	400
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	401 if (options.series.pie.stroke.width > 0) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	402 ctx.save();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	403 ctx.lineWidth = options.series.pie.stroke.width;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	404 currentAngle = startAngle;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	405 for (var i = 0; i < slices.length; ++i) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	406 drawSlice(slices[i].angle, options.series.pie.stroke.color, false);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	407 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	408 ctx.restore();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	409 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	410
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	411 // draw donut hole
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	412
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	413 drawDonutHole(ctx);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	414
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	415 ctx.restore();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	416
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	417 // Draw the labels, returning true if they fit within the plot
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	418
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	419 if (options.series.pie.label.show) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	420 return drawLabels();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	421 } else return true;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	422
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	423 function drawSlice(angle, color, fill) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	424
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	425 if (angle <= 0 \|\| isNaN(angle)) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	426 return;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	427 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	428
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	429 if (fill) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	430 ctx.fillStyle = color;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	431 } else {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	432 ctx.strokeStyle = color;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	433 ctx.lineJoin = "round";
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	434 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	435
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	436 ctx.beginPath();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	437 if (Math.abs(angle - Math.PI * 2) > 0.000000001) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	438 ctx.moveTo(0, 0); // Center of the pie
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	439 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	440
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	441 //ctx.arc(0, 0, radius, 0, angle, false); // This doesn't work properly in Opera
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	442 ctx.arc(0, 0, radius,currentAngle, currentAngle + angle / 2, false);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	443 ctx.arc(0, 0, radius,currentAngle + angle / 2, currentAngle + angle, false);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	444 ctx.closePath();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	445 //ctx.rotate(angle); // This doesn't work properly in Opera
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	446 currentAngle += angle;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	447
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	448 if (fill) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	449 ctx.fill();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	450 } else {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	451 ctx.stroke();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	452 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	453 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	454
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	455 function drawLabels() {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	456
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	457 var currentAngle = startAngle;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	458 var radius = options.series.pie.label.radius > 1 ? options.series.pie.label.radius : maxRadius * options.series.pie.label.radius;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	459
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	460 for (var i = 0; i < slices.length; ++i) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	461 if (slices[i].percent >= options.series.pie.label.threshold * 100) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	462 if (!drawLabel(slices[i], currentAngle, i)) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	463 return false;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	464 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	465 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	466 currentAngle += slices[i].angle;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	467 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	468
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	469 return true;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	470
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	471 function drawLabel(slice, startAngle, index) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	472
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	473 if (slice.data[0][1] == 0) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	474 return true;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	475 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	476
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	477 // format label text
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	478
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	479 var lf = options.legend.labelFormatter, text, plf = options.series.pie.label.formatter;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	480
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	481 if (lf) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	482 text = lf(slice.label, slice);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	483 } else {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	484 text = slice.label;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	485 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	486
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	487 if (plf) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	488 text = plf(text, slice);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	489 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	490
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	491 var halfAngle = ((startAngle + slice.angle) + startAngle) / 2;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	492 var x = centerLeft + Math.round(Math.cos(halfAngle) * radius);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	493 var y = centerTop + Math.round(Math.sin(halfAngle) * radius) * options.series.pie.tilt;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	494
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	495 var html = "<span class='pieLabel' id='pieLabel" + index + "' style='position:absolute;top:" + y + "px;left:" + x + "px;'>" + text + "</span>";
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	496 target.append(html);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	497
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	498 var label = target.children("#pieLabel" + index);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	499 var labelTop = (y - label.height() / 2);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	500 var labelLeft = (x - label.width() / 2);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	501
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	502 label.css("top", labelTop);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	503 label.css("left", labelLeft);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	504
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	505 // check to make sure that the label is not outside the canvas
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	506
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	507 if (0 - labelTop > 0 \|\| 0 - labelLeft > 0 \|\| canvasHeight - (labelTop + label.height()) < 0 \|\| canvasWidth - (labelLeft + label.width()) < 0) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	508 return false;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	509 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	510
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	511 if (options.series.pie.label.background.opacity != 0) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	512
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	513 // put in the transparent background separately to avoid blended labels and label boxes
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	514
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	515 var c = options.series.pie.label.background.color;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	516
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	517 if (c == null) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	518 c = slice.color;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	519 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	520
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	521 var pos = "top:" + labelTop + "px;left:" + labelLeft + "px;";
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	522 $("<div class='pieLabelBackground' style='position:absolute;width:" + label.width() + "px;height:" + label.height() + "px;" + pos + "background-color:" + c + ";'></div>")
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	523 .css("opacity", options.series.pie.label.background.opacity)
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	524 .insertBefore(label);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	525 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	526
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	527 return true;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	528 } // end individual label function
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	529 } // end drawLabels function
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	530 } // end drawPie function
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	531 } // end draw function
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	532
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	533 // Placed here because it needs to be accessed from multiple locations
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	534
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	535 function drawDonutHole(layer) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	536 if (options.series.pie.innerRadius > 0) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	537
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	538 // subtract the center
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	539
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	540 layer.save();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	541 var innerRadius = options.series.pie.innerRadius > 1 ? options.series.pie.innerRadius : maxRadius * options.series.pie.innerRadius;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	542 layer.globalCompositeOperation = "destination-out"; // this does not work with excanvas, but it will fall back to using the stroke color
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	543 layer.beginPath();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	544 layer.fillStyle = options.series.pie.stroke.color;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	545 layer.arc(0, 0, innerRadius, 0, Math.PI * 2, false);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	546 layer.fill();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	547 layer.closePath();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	548 layer.restore();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	549
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	550 // add inner stroke
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	551
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	552 layer.save();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	553 layer.beginPath();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	554 layer.strokeStyle = options.series.pie.stroke.color;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	555 layer.arc(0, 0, innerRadius, 0, Math.PI * 2, false);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	556 layer.stroke();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	557 layer.closePath();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	558 layer.restore();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	559
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	560 // TODO: add extra shadow inside hole (with a mask) if the pie is tilted.
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	561 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	562 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	563
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	564 //-- Additional Interactive related functions --
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	565
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	566 function isPointInPoly(poly, pt) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	567 for(var c = false, i = -1, l = poly.length, j = l - 1; ++i < l; j = i)
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	568 ((poly[i][1] <= pt[1] && pt[1] < poly[j][1]) \|\| (poly[j][1] <= pt[1] && pt[1]< poly[i][1]))
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	569 && (pt[0] < (poly[j][0] - poly[i][0]) * (pt[1] - poly[i][1]) / (poly[j][1] - poly[i][1]) + poly[i][0])
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	570 && (c = !c);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	571 return c;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	572 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	573
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	574 function findNearbySlice(mouseX, mouseY) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	575
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	576 var slices = plot.getData(),
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	577 options = plot.getOptions(),
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	578 radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	579 x, y;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	580
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	581 for (var i = 0; i < slices.length; ++i) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	582
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	583 var s = slices[i];
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	584
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	585 if (s.pie.show) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	586
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	587 ctx.save();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	588 ctx.beginPath();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	589 ctx.moveTo(0, 0); // Center of the pie
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	590 //ctx.scale(1, options.series.pie.tilt); // this actually seems to break everything when here.
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	591 ctx.arc(0, 0, radius, s.startAngle, s.startAngle + s.angle / 2, false);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	592 ctx.arc(0, 0, radius, s.startAngle + s.angle / 2, s.startAngle + s.angle, false);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	593 ctx.closePath();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	594 x = mouseX - centerLeft;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	595 y = mouseY - centerTop;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	596
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	597 if (ctx.isPointInPath) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	598 if (ctx.isPointInPath(mouseX - centerLeft, mouseY - centerTop)) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	599 ctx.restore();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	600 return {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	601 datapoint: [s.percent, s.data],
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	602 dataIndex: 0,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	603 series: s,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	604 seriesIndex: i
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	605 };
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	606 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	607 } else {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	608
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	609 // excanvas for IE doesn;t support isPointInPath, this is a workaround.
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	610
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	611 var p1X = radius * Math.cos(s.startAngle),
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	612 p1Y = radius * Math.sin(s.startAngle),
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	613 p2X = radius * Math.cos(s.startAngle + s.angle / 4),
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	614 p2Y = radius * Math.sin(s.startAngle + s.angle / 4),
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	615 p3X = radius * Math.cos(s.startAngle + s.angle / 2),
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	616 p3Y = radius * Math.sin(s.startAngle + s.angle / 2),
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	617 p4X = radius * Math.cos(s.startAngle + s.angle / 1.5),
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	618 p4Y = radius * Math.sin(s.startAngle + s.angle / 1.5),
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	619 p5X = radius * Math.cos(s.startAngle + s.angle),
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	620 p5Y = radius * Math.sin(s.startAngle + s.angle),
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	621 arrPoly = [[0, 0], [p1X, p1Y], [p2X, p2Y], [p3X, p3Y], [p4X, p4Y], [p5X, p5Y]],
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	622 arrPoint = [x, y];
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	623
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	624 // TODO: perhaps do some mathmatical trickery here with the Y-coordinate to compensate for pie tilt?
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	625
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	626 if (isPointInPoly(arrPoly, arrPoint)) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	627 ctx.restore();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	628 return {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	629 datapoint: [s.percent, s.data],
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	630 dataIndex: 0,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	631 series: s,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	632 seriesIndex: i
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	633 };
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	634 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	635 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	636
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	637 ctx.restore();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	638 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	639 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	640
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	641 return null;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	642 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	643
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	644 function onMouseMove(e) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	645 triggerClickHoverEvent("plothover", e);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	646 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	647
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	648 function onClick(e) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	649 triggerClickHoverEvent("plotclick", e);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	650 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	651
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	652 // trigger click or hover event (they send the same parameters so we share their code)
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	653
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	654 function triggerClickHoverEvent(eventname, e) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	655
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	656 var offset = plot.offset();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	657 var canvasX = parseInt(e.pageX - offset.left);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	658 var canvasY = parseInt(e.pageY - offset.top);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	659 var item = findNearbySlice(canvasX, canvasY);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	660
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	661 if (options.grid.autoHighlight) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	662
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	663 // clear auto-highlights
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	664
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	665 for (var i = 0; i < highlights.length; ++i) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	666 var h = highlights[i];
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	667 if (h.auto == eventname && !(item && h.series == item.series)) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	668 unhighlight(h.series);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	669 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	670 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	671 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	672
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	673 // highlight the slice
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	674
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	675 if (item) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	676 highlight(item.series, eventname);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	677 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	678
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	679 // trigger any hover bind events
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	680
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	681 var pos = { pageX: e.pageX, pageY: e.pageY };
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	682 target.trigger(eventname, [pos, item]);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	683 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	684
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	685 function highlight(s, auto) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	686 //if (typeof s == "number") {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	687 // s = series[s];
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	688 //}
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	689
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	690 var i = indexOfHighlight(s);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	691
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	692 if (i == -1) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	693 highlights.push({ series: s, auto: auto });
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	694 plot.triggerRedrawOverlay();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	695 } else if (!auto) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	696 highlights[i].auto = false;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	697 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	698 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	699
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	700 function unhighlight(s) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	701 if (s == null) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	702 highlights = [];
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	703 plot.triggerRedrawOverlay();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	704 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	705
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	706 //if (typeof s == "number") {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	707 // s = series[s];
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	708 //}
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	709
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	710 var i = indexOfHighlight(s);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	711
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	712 if (i != -1) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	713 highlights.splice(i, 1);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	714 plot.triggerRedrawOverlay();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	715 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	716 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	717
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	718 function indexOfHighlight(s) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	719 for (var i = 0; i < highlights.length; ++i) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	720 var h = highlights[i];
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	721 if (h.series == s)
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	722 return i;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	723 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	724 return -1;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	725 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	726
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	727 function drawOverlay(plot, octx) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	728
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	729 var options = plot.getOptions();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	730
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	731 var radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	732
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	733 octx.save();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	734 octx.translate(centerLeft, centerTop);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	735 octx.scale(1, options.series.pie.tilt);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	736
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	737 for (var i = 0; i < highlights.length; ++i) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	738 drawHighlight(highlights[i].series);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	739 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	740
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	741 drawDonutHole(octx);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	742
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	743 octx.restore();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	744
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	745 function drawHighlight(series) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	746
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	747 if (series.angle <= 0 \|\| isNaN(series.angle)) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	748 return;
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	749 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	750
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	751 //octx.fillStyle = parseColor(options.series.pie.highlight.color).scale(null, null, null, options.series.pie.highlight.opacity).toString();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	752 octx.fillStyle = "rgba(255, 255, 255, " + options.series.pie.highlight.opacity + ")"; // this is temporary until we have access to parseColor
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	753 octx.beginPath();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	754 if (Math.abs(series.angle - Math.PI * 2) > 0.000000001) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	755 octx.moveTo(0, 0); // Center of the pie
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	756 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	757 octx.arc(0, 0, radius, series.startAngle, series.startAngle + series.angle / 2, false);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	758 octx.arc(0, 0, radius, series.startAngle + series.angle / 2, series.startAngle + series.angle, false);
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	759 octx.closePath();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	760 octx.fill();
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	761 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	762 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	763 } // end init (plugin body)
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	764
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	765 // define pie specific options and their default values
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	766
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	767 var options = {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	768 series: {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	769 pie: {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	770 show: false,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	771 radius: "auto", // actual radius of the visible pie (based on full calculated radius if <=1, or hard pixel value)
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	772 innerRadius: 0, /* for donut */
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	773 startAngle: 3/2,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	774 tilt: 1,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	775 shadow: {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	776 left: 5, // shadow left offset
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	777 top: 15, // shadow top offset
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	778 alpha: 0.02 // shadow alpha
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	779 },
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	780 offset: {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	781 top: 0,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	782 left: "auto"
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	783 },
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	784 stroke: {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	785 color: "#fff",
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	786 width: 1
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	787 },
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	788 label: {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	789 show: "auto",
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	790 formatter: function(label, slice) {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	791 return "<div style='font-size:x-small;text-align:center;padding:2px;color:" + slice.color + ";'>" + label + "<br/>" + Math.round(slice.percent) + "%</div>";
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	792 }, // formatter function
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	793 radius: 1, // radius at which to place the labels (based on full calculated radius if <=1, or hard pixel value)
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	794 background: {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	795 color: null,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	796 opacity: 0
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	797 },
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	798 threshold: 0 // percentage at which to hide the label (i.e. the slice is too narrow)
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	799 },
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	800 combine: {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	801 threshold: -1, // percentage at which to combine little slices into one larger slice
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	802 color: null, // color to give the new slice (auto-generated if null)
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	803 label: "Other" // label to give the new slice
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	804 },
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	805 highlight: {
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	806 //color: "#fff", // will add this functionality once parseColor is available
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	807 opacity: 0.5
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	808 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	809 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	810 }
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	811 };
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	812
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	813 $.plot.plugins.push({
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	814 init: init,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	815 options: options,
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	816 name: "pie",
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	817 version: "1.1"
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	818 });
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	819
b12c99b7c3f0 commit for previous development Zoe Hong <zhong@mpiwg-berlin.mpg.de> parents: diff changeset	820 })(jQuery);