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@@ -1,818 +0,0 @@
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-/* Flot plugin for rendering pie charts.
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-
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-Copyright (c) 2007-2013 IOLA and Ole Laursen.
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-Licensed under the MIT license.
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-
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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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-
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-* Created by Brian Medendorp
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-
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-* Updated with contributions from btburnett3, Anthony Aragues and Xavi Ivars
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-
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-The plugin supports these options:
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-
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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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-
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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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-*/
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-
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-(function($) {
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-
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- // Maximum redraw attempts when fitting labels within the plot
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-
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- var REDRAW_ATTEMPTS = 10;
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-
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- // Factor by which to shrink the pie when fitting labels within the plot
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-
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- var REDRAW_SHRINK = 0.95;
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-
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- function init(plot) {
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-
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- var canvas = null,
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- target = 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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- options = null,
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- ctx = null;
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-
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- // interactive variables
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-
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- var highlights = [];
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-
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- // add hook to determine if pie plugin in enabled, and then perform necessary operations
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-
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- plot.hooks.processOptions.push(function(plot, options) {
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- if (options.series.pie.show) {
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-
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- options.grid.show = false;
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-
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- // set labels.show
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-
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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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-
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- // set radius
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-
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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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-
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- // ensure sane tilt
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-
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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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-
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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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-
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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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-
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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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-
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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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-
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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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-
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- function combine(data) {
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-
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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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-
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- // Fix up the raw data from Flot, ensuring the data is numeric
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-
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- for (var i = 0; i < data.length; ++i) {
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-
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- var value = data[i].data;
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-
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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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-
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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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-
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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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-
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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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-
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- data[i].data = [value];
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- }
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-
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- // Sum up all the slices, so we can calculate percentages for each
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-
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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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-
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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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-
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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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-
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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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- 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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-
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- return newdata;
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- }
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-
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- function draw(plot, newCtx) {
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-
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- if (!target) {
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- return; // if no series were passed
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- }
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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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-
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- ctx = newCtx;
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-
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- // WARNING: HACK! REWRITE THIS CODE AS SOON AS POSSIBLE!
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-
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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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-
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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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-
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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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-
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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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-
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- processed = false;
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-
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- // calculate maximum radius and center point
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-
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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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-
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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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- } else {
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- centerLeft += options.series.pie.offset.left;
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- }
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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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-
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- var slices = plot.getData(),
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- attempts = 0;
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-
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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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-
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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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-
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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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-
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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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-
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- // we're actually done at this point, just defining internal functions at this point
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-
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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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-
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- function drawShadow() {
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-
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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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-
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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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-
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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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-
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- // center and rotate to starting position
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-
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- ctx.translate(centerLeft,centerTop);
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- ctx.scale(1, options.series.pie.tilt);
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-
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- //radius -= edge;
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-
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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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-
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- ctx.restore();
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- }
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-
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- function drawPie() {
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-
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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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-
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- // center and rotate to starting position
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-
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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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-
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- // draw slices
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-
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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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-
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- // draw slice outlines
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-
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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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-
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- // draw donut hole
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-
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- drawDonutHole(ctx);
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-
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- ctx.restore();
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-
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- // Draw the labels, returning true if they fit within the plot
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-
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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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-
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- function drawSlice(angle, color, fill) {
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-
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- if (angle <= 0 || isNaN(angle)) {
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- return;
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|
|
- }
|
|
|
-
|
|
|
- if (fill) {
|
|
|
- ctx.fillStyle = color;
|
|
|
- } else {
|
|
|
- ctx.strokeStyle = color;
|
|
|
- ctx.lineJoin = "round";
|
|
|
- }
|
|
|
-
|
|
|
- ctx.beginPath();
|
|
|
- if (Math.abs(angle - Math.PI * 2) > 0.000000001) {
|
|
|
- ctx.moveTo(0, 0); // Center of the pie
|
|
|
- }
|
|
|
-
|
|
|
- //ctx.arc(0, 0, radius, 0, angle, false); // This doesn't work properly in Opera
|
|
|
- ctx.arc(0, 0, radius,currentAngle, currentAngle + angle / 2, false);
|
|
|
- ctx.arc(0, 0, radius,currentAngle + angle / 2, currentAngle + angle, false);
|
|
|
- ctx.closePath();
|
|
|
- //ctx.rotate(angle); // This doesn't work properly in Opera
|
|
|
- currentAngle += angle;
|
|
|
-
|
|
|
- if (fill) {
|
|
|
- ctx.fill();
|
|
|
- } else {
|
|
|
- ctx.stroke();
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- function drawLabels() {
|
|
|
-
|
|
|
- var currentAngle = startAngle;
|
|
|
- var radius = options.series.pie.label.radius > 1 ? options.series.pie.label.radius : maxRadius * options.series.pie.label.radius;
|
|
|
-
|
|
|
- for (var i = 0; i < slices.length; ++i) {
|
|
|
- if (slices[i].percent >= options.series.pie.label.threshold * 100) {
|
|
|
- if (!drawLabel(slices[i], currentAngle, i)) {
|
|
|
- return false;
|
|
|
- }
|
|
|
- }
|
|
|
- currentAngle += slices[i].angle;
|
|
|
- }
|
|
|
-
|
|
|
- return true;
|
|
|
-
|
|
|
- function drawLabel(slice, startAngle, index) {
|
|
|
-
|
|
|
- if (slice.data[0][1] == 0) {
|
|
|
- return true;
|
|
|
- }
|
|
|
-
|
|
|
- // format label text
|
|
|
-
|
|
|
- var lf = options.legend.labelFormatter, text, plf = options.series.pie.label.formatter;
|
|
|
-
|
|
|
- if (lf) {
|
|
|
- text = lf(slice.label, slice);
|
|
|
- } else {
|
|
|
- text = slice.label;
|
|
|
- }
|
|
|
-
|
|
|
- if (plf) {
|
|
|
- text = plf(text, slice);
|
|
|
- }
|
|
|
-
|
|
|
- var halfAngle = ((startAngle + slice.angle) + startAngle) / 2;
|
|
|
- var x = centerLeft + Math.round(Math.cos(halfAngle) * radius);
|
|
|
- var y = centerTop + Math.round(Math.sin(halfAngle) * radius) * options.series.pie.tilt;
|
|
|
-
|
|
|
- var html = "<span class='pieLabel' id='pieLabel" + index + "' style='position:absolute;top:" + y + "px;left:" + x + "px;'>" + text + "</span>";
|
|
|
- target.append(html);
|
|
|
-
|
|
|
- var label = target.children("#pieLabel" + index);
|
|
|
- var labelTop = (y - label.height() / 2);
|
|
|
- var labelLeft = (x - label.width() / 2);
|
|
|
-
|
|
|
- label.css("top", labelTop);
|
|
|
- label.css("left", labelLeft);
|
|
|
-
|
|
|
- // check to make sure that the label is not outside the canvas
|
|
|
-
|
|
|
- if (0 - labelTop > 0 || 0 - labelLeft > 0 || canvasHeight - (labelTop + label.height()) < 0 || canvasWidth - (labelLeft + label.width()) < 0) {
|
|
|
- return false;
|
|
|
- }
|
|
|
-
|
|
|
- if (options.series.pie.label.background.opacity != 0) {
|
|
|
-
|
|
|
- // put in the transparent background separately to avoid blended labels and label boxes
|
|
|
-
|
|
|
- var c = options.series.pie.label.background.color;
|
|
|
-
|
|
|
- if (c == null) {
|
|
|
- c = slice.color;
|
|
|
- }
|
|
|
-
|
|
|
- var pos = "top:" + labelTop + "px;left:" + labelLeft + "px;";
|
|
|
- $("<div class='pieLabelBackground' style='position:absolute;width:" + label.width() + "px;height:" + label.height() + "px;" + pos + "background-color:" + c + ";'></div>")
|
|
|
- .css("opacity", options.series.pie.label.background.opacity)
|
|
|
- .insertBefore(label);
|
|
|
- }
|
|
|
-
|
|
|
- return true;
|
|
|
- } // end individual label function
|
|
|
- } // end drawLabels function
|
|
|
- } // end drawPie function
|
|
|
- } // end draw function
|
|
|
-
|
|
|
- // Placed here because it needs to be accessed from multiple locations
|
|
|
-
|
|
|
- function drawDonutHole(layer) {
|
|
|
- if (options.series.pie.innerRadius > 0) {
|
|
|
-
|
|
|
- // subtract the center
|
|
|
-
|
|
|
- layer.save();
|
|
|
- var innerRadius = options.series.pie.innerRadius > 1 ? options.series.pie.innerRadius : maxRadius * options.series.pie.innerRadius;
|
|
|
- layer.globalCompositeOperation = "destination-out"; // this does not work with excanvas, but it will fall back to using the stroke color
|
|
|
- layer.beginPath();
|
|
|
- layer.fillStyle = options.series.pie.stroke.color;
|
|
|
- layer.arc(0, 0, innerRadius, 0, Math.PI * 2, false);
|
|
|
- layer.fill();
|
|
|
- layer.closePath();
|
|
|
- layer.restore();
|
|
|
-
|
|
|
- // add inner stroke
|
|
|
-
|
|
|
- layer.save();
|
|
|
- layer.beginPath();
|
|
|
- layer.strokeStyle = options.series.pie.stroke.color;
|
|
|
- layer.arc(0, 0, innerRadius, 0, Math.PI * 2, false);
|
|
|
- layer.stroke();
|
|
|
- layer.closePath();
|
|
|
- layer.restore();
|
|
|
-
|
|
|
- // TODO: add extra shadow inside hole (with a mask) if the pie is tilted.
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- //-- Additional Interactive related functions --
|
|
|
-
|
|
|
- function isPointInPoly(poly, pt) {
|
|
|
- for(var c = false, i = -1, l = poly.length, j = l - 1; ++i < l; j = i)
|
|
|
- ((poly[i][1] <= pt[1] && pt[1] < poly[j][1]) || (poly[j][1] <= pt[1] && pt[1]< poly[i][1]))
|
|
|
- && (pt[0] < (poly[j][0] - poly[i][0]) * (pt[1] - poly[i][1]) / (poly[j][1] - poly[i][1]) + poly[i][0])
|
|
|
- && (c = !c);
|
|
|
- return c;
|
|
|
- }
|
|
|
-
|
|
|
- function findNearbySlice(mouseX, mouseY) {
|
|
|
-
|
|
|
- var slices = plot.getData(),
|
|
|
- options = plot.getOptions(),
|
|
|
- radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius,
|
|
|
- x, y;
|
|
|
-
|
|
|
- for (var i = 0; i < slices.length; ++i) {
|
|
|
-
|
|
|
- var s = slices[i];
|
|
|
-
|
|
|
- if (s.pie.show) {
|
|
|
-
|
|
|
- ctx.save();
|
|
|
- ctx.beginPath();
|
|
|
- ctx.moveTo(0, 0); // Center of the pie
|
|
|
- //ctx.scale(1, options.series.pie.tilt); // this actually seems to break everything when here.
|
|
|
- ctx.arc(0, 0, radius, s.startAngle, s.startAngle + s.angle / 2, false);
|
|
|
- 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);
|