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820 lines
23 KiB
820 lines
23 KiB
/* Flot plugin for rendering pie charts. |
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Copyright (c) 2007-2014 IOLA and Ole Laursen. |
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Licensed under the MIT license. |
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The plugin assumes that each series has a single data value, and that each |
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value is a positive integer or zero. Negative numbers don't make sense for a |
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pie chart, and have unpredictable results. The values do NOT need to be |
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passed in as percentages; the plugin will calculate the total and per-slice |
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percentages internally. |
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* Created by Brian Medendorp |
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* Updated with contributions from btburnett3, Anthony Aragues and Xavi Ivars |
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The plugin supports these options: |
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series: { |
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pie: { |
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show: true/false |
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radius: 0-1 for percentage of fullsize, or a specified pixel length, or 'auto' |
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innerRadius: 0-1 for percentage of fullsize or a specified pixel length, for creating a donut effect |
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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 |
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tilt: 0-1 for percentage to tilt the pie, where 1 is no tilt, and 0 is completely flat (nothing will show) |
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offset: { |
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top: integer value to move the pie up or down |
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left: integer value to move the pie left or right, or 'auto' |
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}, |
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stroke: { |
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color: any hexidecimal color value (other formats may or may not work, so best to stick with something like '#FFF') |
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width: integer pixel width of the stroke |
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}, |
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label: { |
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show: true/false, or 'auto' |
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formatter: a user-defined function that modifies the text/style of the label text |
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radius: 0-1 for percentage of fullsize, or a specified pixel length |
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background: { |
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color: any hexidecimal color value (other formats may or may not work, so best to stick with something like '#000') |
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opacity: 0-1 |
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}, |
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threshold: 0-1 for the percentage value at which to hide labels (if they're too small) |
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}, |
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combine: { |
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threshold: 0-1 for the percentage value at which to combine slices (if they're too small) |
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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 |
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label: any text value of what the combined slice should be labeled |
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} |
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highlight: { |
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opacity: 0-1 |
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} |
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} |
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} |
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More detail and specific examples can be found in the included HTML file. |
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*/ |
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(function($) { |
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// Maximum redraw attempts when fitting labels within the plot |
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var REDRAW_ATTEMPTS = 10; |
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// Factor by which to shrink the pie when fitting labels within the plot |
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var REDRAW_SHRINK = 0.95; |
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function init(plot) { |
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var canvas = null, |
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target = null, |
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options = null, |
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maxRadius = null, |
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centerLeft = null, |
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centerTop = null, |
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processed = false, |
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ctx = null; |
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// interactive variables |
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var highlights = []; |
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// add hook to determine if pie plugin in enabled, and then perform necessary operations |
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plot.hooks.processOptions.push(function(plot, options) { |
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if (options.series.pie.show) { |
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options.grid.show = false; |
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// set labels.show |
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if (options.series.pie.label.show == "auto") { |
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if (options.legend.show) { |
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options.series.pie.label.show = false; |
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} else { |
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options.series.pie.label.show = true; |
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} |
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} |
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// set radius |
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if (options.series.pie.radius == "auto") { |
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if (options.series.pie.label.show) { |
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options.series.pie.radius = 3/4; |
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} else { |
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options.series.pie.radius = 1; |
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} |
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} |
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// ensure sane tilt |
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if (options.series.pie.tilt > 1) { |
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options.series.pie.tilt = 1; |
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} else if (options.series.pie.tilt < 0) { |
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options.series.pie.tilt = 0; |
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} |
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} |
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}); |
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plot.hooks.bindEvents.push(function(plot, eventHolder) { |
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var options = plot.getOptions(); |
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if (options.series.pie.show) { |
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if (options.grid.hoverable) { |
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eventHolder.unbind("mousemove").mousemove(onMouseMove); |
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} |
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if (options.grid.clickable) { |
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eventHolder.unbind("click").click(onClick); |
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} |
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} |
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}); |
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plot.hooks.processDatapoints.push(function(plot, series, data, datapoints) { |
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var options = plot.getOptions(); |
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if (options.series.pie.show) { |
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processDatapoints(plot, series, data, datapoints); |
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} |
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}); |
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plot.hooks.drawOverlay.push(function(plot, octx) { |
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var options = plot.getOptions(); |
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if (options.series.pie.show) { |
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drawOverlay(plot, octx); |
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} |
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}); |
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plot.hooks.draw.push(function(plot, newCtx) { |
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var options = plot.getOptions(); |
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if (options.series.pie.show) { |
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draw(plot, newCtx); |
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} |
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}); |
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function processDatapoints(plot, series, datapoints) { |
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if (!processed) { |
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processed = true; |
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canvas = plot.getCanvas(); |
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target = $(canvas).parent(); |
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options = plot.getOptions(); |
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plot.setData(combine(plot.getData())); |
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} |
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} |
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function combine(data) { |
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var total = 0, |
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combined = 0, |
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numCombined = 0, |
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color = options.series.pie.combine.color, |
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newdata = []; |
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// Fix up the raw data from Flot, ensuring the data is numeric |
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for (var i = 0; i < data.length; ++i) { |
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var value = data[i].data; |
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// If the data is an array, we'll assume that it's a standard |
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// Flot x-y pair, and are concerned only with the second value. |
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// Note how we use the original array, rather than creating a |
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// new one; this is more efficient and preserves any extra data |
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// that the user may have stored in higher indexes. |
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if ($.isArray(value) && value.length == 1) { |
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value = value[0]; |
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} |
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if ($.isArray(value)) { |
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// Equivalent to $.isNumeric() but compatible with jQuery < 1.7 |
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if (!isNaN(parseFloat(value[1])) && isFinite(value[1])) { |
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value[1] = +value[1]; |
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} else { |
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value[1] = 0; |
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} |
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} else if (!isNaN(parseFloat(value)) && isFinite(value)) { |
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value = [1, +value]; |
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} else { |
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value = [1, 0]; |
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} |
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data[i].data = [value]; |
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} |
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// Sum up all the slices, so we can calculate percentages for each |
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for (var i = 0; i < data.length; ++i) { |
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total += data[i].data[0][1]; |
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} |
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// Count the number of slices with percentages below the combine |
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// threshold; if it turns out to be just one, we won't combine. |
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for (var i = 0; i < data.length; ++i) { |
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var value = data[i].data[0][1]; |
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if (value / total <= options.series.pie.combine.threshold) { |
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combined += value; |
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numCombined++; |
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if (!color) { |
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color = data[i].color; |
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} |
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} |
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} |
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for (var i = 0; i < data.length; ++i) { |
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var value = data[i].data[0][1]; |
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if (numCombined < 2 || value / total > options.series.pie.combine.threshold) { |
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newdata.push( |
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$.extend(data[i], { /* extend to allow keeping all other original data values |
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and using them e.g. in labelFormatter. */ |
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data: [[1, value]], |
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color: data[i].color, |
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label: data[i].label, |
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angle: value * Math.PI * 2 / total, |
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percent: value / (total / 100) |
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}) |
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); |
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} |
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} |
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if (numCombined > 1) { |
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newdata.push({ |
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data: [[1, combined]], |
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color: color, |
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label: options.series.pie.combine.label, |
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angle: combined * Math.PI * 2 / total, |
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percent: combined / (total / 100) |
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}); |
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} |
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return newdata; |
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} |
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function draw(plot, newCtx) { |
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if (!target) { |
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return; // if no series were passed |
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} |
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var canvasWidth = plot.getPlaceholder().width(), |
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canvasHeight = plot.getPlaceholder().height(), |
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legendWidth = target.children().filter(".legend").children().width() || 0; |
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ctx = newCtx; |
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// WARNING: HACK! REWRITE THIS CODE AS SOON AS POSSIBLE! |
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// When combining smaller slices into an 'other' slice, we need to |
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// add a new series. Since Flot gives plugins no way to modify the |
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// list of series, the pie plugin uses a hack where the first call |
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// to processDatapoints results in a call to setData with the new |
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// list of series, then subsequent processDatapoints do nothing. |
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// The plugin-global 'processed' flag is used to control this hack; |
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// it starts out false, and is set to true after the first call to |
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// processDatapoints. |
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// Unfortunately this turns future setData calls into no-ops; they |
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// call processDatapoints, the flag is true, and nothing happens. |
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// To fix this we'll set the flag back to false here in draw, when |
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// all series have been processed, so the next sequence of calls to |
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// processDatapoints once again starts out with a slice-combine. |
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// This is really a hack; in 0.9 we need to give plugins a proper |
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// way to modify series before any processing begins. |
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processed = false; |
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// calculate maximum radius and center point |
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maxRadius = Math.min(canvasWidth, canvasHeight / options.series.pie.tilt) / 2; |
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centerTop = canvasHeight / 2 + options.series.pie.offset.top; |
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centerLeft = canvasWidth / 2; |
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if (options.series.pie.offset.left == "auto") { |
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if (options.legend.position.match("w")) { |
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centerLeft += legendWidth / 2; |
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} else { |
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centerLeft -= legendWidth / 2; |
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} |
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if (centerLeft < maxRadius) { |
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centerLeft = maxRadius; |
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} else if (centerLeft > canvasWidth - maxRadius) { |
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centerLeft = canvasWidth - maxRadius; |
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} |
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} else { |
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centerLeft += options.series.pie.offset.left; |
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} |
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var slices = plot.getData(), |
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attempts = 0; |
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// Keep shrinking the pie's radius until drawPie returns true, |
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// indicating that all the labels fit, or we try too many times. |
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do { |
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if (attempts > 0) { |
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maxRadius *= REDRAW_SHRINK; |
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} |
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attempts += 1; |
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clear(); |
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if (options.series.pie.tilt <= 0.8) { |
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drawShadow(); |
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} |
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} while (!drawPie() && attempts < REDRAW_ATTEMPTS) |
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if (attempts >= REDRAW_ATTEMPTS) { |
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clear(); |
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target.prepend("<div class='error'>Could not draw pie with labels contained inside canvas</div>"); |
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} |
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if (plot.setSeries && plot.insertLegend) { |
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plot.setSeries(slices); |
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plot.insertLegend(); |
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} |
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// we're actually done at this point, just defining internal functions at this point |
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function clear() { |
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ctx.clearRect(0, 0, canvasWidth, canvasHeight); |
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target.children().filter(".pieLabel, .pieLabelBackground").remove(); |
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} |
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function drawShadow() { |
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var shadowLeft = options.series.pie.shadow.left; |
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var shadowTop = options.series.pie.shadow.top; |
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var edge = 10; |
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var alpha = options.series.pie.shadow.alpha; |
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var radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius; |
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if (radius >= canvasWidth / 2 - shadowLeft || radius * options.series.pie.tilt >= canvasHeight / 2 - shadowTop || radius <= edge) { |
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return; // shadow would be outside canvas, so don't draw it |
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} |
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ctx.save(); |
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ctx.translate(shadowLeft,shadowTop); |
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ctx.globalAlpha = alpha; |
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ctx.fillStyle = "#000"; |
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// center and rotate to starting position |
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ctx.translate(centerLeft,centerTop); |
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ctx.scale(1, options.series.pie.tilt); |
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//radius -= edge; |
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for (var i = 1; i <= edge; i++) { |
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ctx.beginPath(); |
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ctx.arc(0, 0, radius, 0, Math.PI * 2, false); |
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ctx.fill(); |
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radius -= i; |
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} |
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ctx.restore(); |
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} |
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function drawPie() { |
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var startAngle = Math.PI * options.series.pie.startAngle; |
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var radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius; |
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// center and rotate to starting position |
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ctx.save(); |
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ctx.translate(centerLeft,centerTop); |
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ctx.scale(1, options.series.pie.tilt); |
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//ctx.rotate(startAngle); // start at top; -- This doesn't work properly in Opera |
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// draw slices |
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ctx.save(); |
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var currentAngle = startAngle; |
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for (var i = 0; i < slices.length; ++i) { |
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slices[i].startAngle = currentAngle; |
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drawSlice(slices[i].angle, slices[i].color, true); |
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} |
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ctx.restore(); |
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// draw slice outlines |
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if (options.series.pie.stroke.width > 0) { |
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ctx.save(); |
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ctx.lineWidth = options.series.pie.stroke.width; |
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currentAngle = startAngle; |
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for (var i = 0; i < slices.length; ++i) { |
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drawSlice(slices[i].angle, options.series.pie.stroke.color, false); |
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} |
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ctx.restore(); |
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} |
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// draw donut hole |
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drawDonutHole(ctx); |
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ctx.restore(); |
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// Draw the labels, returning true if they fit within the plot |
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if (options.series.pie.label.show) { |
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return drawLabels(); |
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} else return true; |
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function drawSlice(angle, color, fill) { |
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if (angle <= 0 || isNaN(angle)) { |
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return; |
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} |
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if (fill) { |
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ctx.fillStyle = color; |
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} else { |
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ctx.strokeStyle = color; |
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ctx.lineJoin = "round"; |
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} |
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ctx.beginPath(); |
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if (Math.abs(angle - Math.PI * 2) > 0.000000001) { |
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ctx.moveTo(0, 0); // Center of the pie |
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} |
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//ctx.arc(0, 0, radius, 0, angle, false); // This doesn't work properly in Opera |
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ctx.arc(0, 0, radius,currentAngle, currentAngle + angle / 2, false); |
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ctx.arc(0, 0, radius,currentAngle + angle / 2, currentAngle + angle, false); |
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ctx.closePath(); |
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//ctx.rotate(angle); // This doesn't work properly in Opera |
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currentAngle += angle; |
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if (fill) { |
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ctx.fill(); |
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} else { |
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ctx.stroke(); |
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} |
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} |
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function drawLabels() { |
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var currentAngle = startAngle; |
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var radius = options.series.pie.label.radius > 1 ? options.series.pie.label.radius : maxRadius * options.series.pie.label.radius; |
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for (var i = 0; i < slices.length; ++i) { |
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if (slices[i].percent >= options.series.pie.label.threshold * 100) { |
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if (!drawLabel(slices[i], currentAngle, i)) { |
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return false; |
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} |
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} |
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currentAngle += slices[i].angle; |
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} |
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return true; |
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function drawLabel(slice, startAngle, index) { |
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if (slice.data[0][1] == 0) { |
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return true; |
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} |
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// format label text |
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var lf = options.legend.labelFormatter, text, plf = options.series.pie.label.formatter; |
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if (lf) { |
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text = lf(slice.label, slice); |
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} else { |
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text = slice.label; |
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} |
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if (plf) { |
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text = plf(text, slice); |
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} |
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var halfAngle = ((startAngle + slice.angle) + startAngle) / 2; |
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var x = centerLeft + Math.round(Math.cos(halfAngle) * radius); |
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var y = centerTop + Math.round(Math.sin(halfAngle) * radius) * options.series.pie.tilt; |
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var html = "<span class='pieLabel' id='pieLabel" + index + "' style='position:absolute;top:" + y + "px;left:" + x + "px;'>" + text + "</span>"; |
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target.append(html); |
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var label = target.children("#pieLabel" + index); |
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var labelTop = (y - label.height() / 2); |
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var labelLeft = (x - label.width() / 2); |
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label.css("top", labelTop); |
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label.css("left", labelLeft); |
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// check to make sure that the label is not outside the canvas |
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if (0 - labelTop > 0 || 0 - labelLeft > 0 || canvasHeight - (labelTop + label.height()) < 0 || canvasWidth - (labelLeft + label.width()) < 0) { |
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return false; |
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} |
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if (options.series.pie.label.background.opacity != 0) { |
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// put in the transparent background separately to avoid blended labels and label boxes |
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var c = options.series.pie.label.background.color; |
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if (c == null) { |
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c = slice.color; |
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} |
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var pos = "top:" + labelTop + "px;left:" + labelLeft + "px;"; |
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$("<div class='pieLabelBackground' style='position:absolute;width:" + label.width() + "px;height:" + label.height() + "px;" + pos + "background-color:" + c + ";'></div>") |
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.css("opacity", options.series.pie.label.background.opacity) |
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.insertBefore(label); |
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} |
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return true; |
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} // end individual label function |
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} // end drawLabels function |
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} // end drawPie function |
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} // end draw function |
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// Placed here because it needs to be accessed from multiple locations |
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function drawDonutHole(layer) { |
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if (options.series.pie.innerRadius > 0) { |
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// subtract the center |
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layer.save(); |
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var innerRadius = options.series.pie.innerRadius > 1 ? options.series.pie.innerRadius : maxRadius * options.series.pie.innerRadius; |
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layer.globalCompositeOperation = "destination-out"; // this does not work with excanvas, but it will fall back to using the stroke color |
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layer.beginPath(); |
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layer.fillStyle = options.series.pie.stroke.color; |
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layer.arc(0, 0, innerRadius, 0, Math.PI * 2, false); |
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layer.fill(); |
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layer.closePath(); |
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layer.restore(); |
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// add inner stroke |
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layer.save(); |
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layer.beginPath(); |
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layer.strokeStyle = options.series.pie.stroke.color; |
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layer.arc(0, 0, innerRadius, 0, Math.PI * 2, false); |
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layer.stroke(); |
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layer.closePath(); |
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layer.restore(); |
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// TODO: add extra shadow inside hole (with a mask) if the pie is tilted. |
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} |
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} |
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//-- Additional Interactive related functions -- |
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function isPointInPoly(poly, pt) { |
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for(var c = false, i = -1, l = poly.length, j = l - 1; ++i < l; j = i) |
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((poly[i][1] <= pt[1] && pt[1] < poly[j][1]) || (poly[j][1] <= pt[1] && pt[1]< poly[i][1])) |
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&& (pt[0] < (poly[j][0] - poly[i][0]) * (pt[1] - poly[i][1]) / (poly[j][1] - poly[i][1]) + poly[i][0]) |
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&& (c = !c); |
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return c; |
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} |
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function findNearbySlice(mouseX, mouseY) { |
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var slices = plot.getData(), |
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options = plot.getOptions(), |
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radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius, |
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x, y; |
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for (var i = 0; i < slices.length; ++i) { |
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var s = slices[i]; |
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if (s.pie.show) { |
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ctx.save(); |
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ctx.beginPath(); |
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ctx.moveTo(0, 0); // Center of the pie |
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//ctx.scale(1, options.series.pie.tilt); // this actually seems to break everything when here. |
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ctx.arc(0, 0, radius, s.startAngle, s.startAngle + s.angle / 2, false); |
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ctx.arc(0, 0, radius, s.startAngle + s.angle / 2, s.startAngle + s.angle, false); |
|
ctx.closePath(); |
|
x = mouseX - centerLeft; |
|
y = mouseY - centerTop; |
|
|
|
if (ctx.isPointInPath) { |
|
if (ctx.isPointInPath(mouseX - centerLeft, mouseY - centerTop)) { |
|
ctx.restore(); |
|
return { |
|
datapoint: [s.percent, s.data], |
|
dataIndex: 0, |
|
series: s, |
|
seriesIndex: i |
|
}; |
|
} |
|
} else { |
|
|
|
// excanvas for IE doesn;t support isPointInPath, this is a workaround. |
|
|
|
var p1X = radius * Math.cos(s.startAngle), |
|
p1Y = radius * Math.sin(s.startAngle), |
|
p2X = radius * Math.cos(s.startAngle + s.angle / 4), |
|
p2Y = radius * Math.sin(s.startAngle + s.angle / 4), |
|
p3X = radius * Math.cos(s.startAngle + s.angle / 2), |
|
p3Y = radius * Math.sin(s.startAngle + s.angle / 2), |
|
p4X = radius * Math.cos(s.startAngle + s.angle / 1.5), |
|
p4Y = radius * Math.sin(s.startAngle + s.angle / 1.5), |
|
p5X = radius * Math.cos(s.startAngle + s.angle), |
|
p5Y = radius * Math.sin(s.startAngle + s.angle), |
|
arrPoly = [[0, 0], [p1X, p1Y], [p2X, p2Y], [p3X, p3Y], [p4X, p4Y], [p5X, p5Y]], |
|
arrPoint = [x, y]; |
|
|
|
// TODO: perhaps do some mathmatical trickery here with the Y-coordinate to compensate for pie tilt? |
|
|
|
if (isPointInPoly(arrPoly, arrPoint)) { |
|
ctx.restore(); |
|
return { |
|
datapoint: [s.percent, s.data], |
|
dataIndex: 0, |
|
series: s, |
|
seriesIndex: i |
|
}; |
|
} |
|
} |
|
|
|
ctx.restore(); |
|
} |
|
} |
|
|
|
return null; |
|
} |
|
|
|
function onMouseMove(e) { |
|
triggerClickHoverEvent("plothover", e); |
|
} |
|
|
|
function onClick(e) { |
|
triggerClickHoverEvent("plotclick", e); |
|
} |
|
|
|
// trigger click or hover event (they send the same parameters so we share their code) |
|
|
|
function triggerClickHoverEvent(eventname, e) { |
|
|
|
var offset = plot.offset(); |
|
var canvasX = parseInt(e.pageX - offset.left); |
|
var canvasY = parseInt(e.pageY - offset.top); |
|
var item = findNearbySlice(canvasX, canvasY); |
|
|
|
if (options.grid.autoHighlight) { |
|
|
|
// clear auto-highlights |
|
|
|
for (var i = 0; i < highlights.length; ++i) { |
|
var h = highlights[i]; |
|
if (h.auto == eventname && !(item && h.series == item.series)) { |
|
unhighlight(h.series); |
|
} |
|
} |
|
} |
|
|
|
// highlight the slice |
|
|
|
if (item) { |
|
highlight(item.series, eventname); |
|
} |
|
|
|
// trigger any hover bind events |
|
|
|
var pos = { pageX: e.pageX, pageY: e.pageY }; |
|
target.trigger(eventname, [pos, item]); |
|
} |
|
|
|
function highlight(s, auto) { |
|
//if (typeof s == "number") { |
|
// s = series[s]; |
|
//} |
|
|
|
var i = indexOfHighlight(s); |
|
|
|
if (i == -1) { |
|
highlights.push({ series: s, auto: auto }); |
|
plot.triggerRedrawOverlay(); |
|
} else if (!auto) { |
|
highlights[i].auto = false; |
|
} |
|
} |
|
|
|
function unhighlight(s) { |
|
if (s == null) { |
|
highlights = []; |
|
plot.triggerRedrawOverlay(); |
|
} |
|
|
|
//if (typeof s == "number") { |
|
// s = series[s]; |
|
//} |
|
|
|
var i = indexOfHighlight(s); |
|
|
|
if (i != -1) { |
|
highlights.splice(i, 1); |
|
plot.triggerRedrawOverlay(); |
|
} |
|
} |
|
|
|
function indexOfHighlight(s) { |
|
for (var i = 0; i < highlights.length; ++i) { |
|
var h = highlights[i]; |
|
if (h.series == s) |
|
return i; |
|
} |
|
return -1; |
|
} |
|
|
|
function drawOverlay(plot, octx) { |
|
|
|
var options = plot.getOptions(); |
|
|
|
var radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius; |
|
|
|
octx.save(); |
|
octx.translate(centerLeft, centerTop); |
|
octx.scale(1, options.series.pie.tilt); |
|
|
|
for (var i = 0; i < highlights.length; ++i) { |
|
drawHighlight(highlights[i].series); |
|
} |
|
|
|
drawDonutHole(octx); |
|
|
|
octx.restore(); |
|
|
|
function drawHighlight(series) { |
|
|
|
if (series.angle <= 0 || isNaN(series.angle)) { |
|
return; |
|
} |
|
|
|
//octx.fillStyle = parseColor(options.series.pie.highlight.color).scale(null, null, null, options.series.pie.highlight.opacity).toString(); |
|
octx.fillStyle = "rgba(255, 255, 255, " + options.series.pie.highlight.opacity + ")"; // this is temporary until we have access to parseColor |
|
octx.beginPath(); |
|
if (Math.abs(series.angle - Math.PI * 2) > 0.000000001) { |
|
octx.moveTo(0, 0); // Center of the pie |
|
} |
|
octx.arc(0, 0, radius, series.startAngle, series.startAngle + series.angle / 2, false); |
|
octx.arc(0, 0, radius, series.startAngle + series.angle / 2, series.startAngle + series.angle, false); |
|
octx.closePath(); |
|
octx.fill(); |
|
} |
|
} |
|
} // end init (plugin body) |
|
|
|
// define pie specific options and their default values |
|
|
|
var options = { |
|
series: { |
|
pie: { |
|
show: false, |
|
radius: "auto", // actual radius of the visible pie (based on full calculated radius if <=1, or hard pixel value) |
|
innerRadius: 0, /* for donut */ |
|
startAngle: 3/2, |
|
tilt: 1, |
|
shadow: { |
|
left: 5, // shadow left offset |
|
top: 15, // shadow top offset |
|
alpha: 0.02 // shadow alpha |
|
}, |
|
offset: { |
|
top: 0, |
|
left: "auto" |
|
}, |
|
stroke: { |
|
color: "#fff", |
|
width: 1 |
|
}, |
|
label: { |
|
show: "auto", |
|
formatter: function(label, slice) { |
|
return "<div style='font-size:x-small;text-align:center;padding:2px;color:" + slice.color + ";'>" + label + "<br/>" + Math.round(slice.percent) + "%</div>"; |
|
}, // formatter function |
|
radius: 1, // radius at which to place the labels (based on full calculated radius if <=1, or hard pixel value) |
|
background: { |
|
color: null, |
|
opacity: 0 |
|
}, |
|
threshold: 0 // percentage at which to hide the label (i.e. the slice is too narrow) |
|
}, |
|
combine: { |
|
threshold: -1, // percentage at which to combine little slices into one larger slice |
|
color: null, // color to give the new slice (auto-generated if null) |
|
label: "Other" // label to give the new slice |
|
}, |
|
highlight: { |
|
//color: "#fff", // will add this functionality once parseColor is available |
|
opacity: 0.5 |
|
} |
|
} |
|
} |
|
}; |
|
|
|
$.plot.plugins.push({ |
|
init: init, |
|
options: options, |
|
name: "pie", |
|
version: "1.1" |
|
}); |
|
|
|
})(jQuery);
|
|
|