--- /dev/null
+/* Flot plugin for rendering pie charts.
+
+Copyright (c) 2007-2013 IOLA and Ole Laursen.
+Licensed under the MIT license.
+
+The plugin assumes that each series has a single data value, and that each
+value is a positive integer or zero. Negative numbers don't make sense for a
+pie chart, and have unpredictable results. The values do NOT need to be
+passed in as percentages; the plugin will calculate the total and per-slice
+percentages internally.
+
+* Created by Brian Medendorp
+
+* Updated with contributions from btburnett3, Anthony Aragues and Xavi Ivars
+
+The plugin supports these options:
+
+ series: {
+ pie: {
+ show: true/false
+ radius: 0-1 for percentage of fullsize, or a specified pixel length, or 'auto'
+ innerRadius: 0-1 for percentage of fullsize or a specified pixel length, for creating a donut effect
+ 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
+ tilt: 0-1 for percentage to tilt the pie, where 1 is no tilt, and 0 is completely flat (nothing will show)
+ offset: {
+ top: integer value to move the pie up or down
+ left: integer value to move the pie left or right, or 'auto'
+ },
+ stroke: {
+ color: any hexidecimal color value (other formats may or may not work, so best to stick with something like '#FFF')
+ width: integer pixel width of the stroke
+ },
+ label: {
+ show: true/false, or 'auto'
+ formatter: a user-defined function that modifies the text/style of the label text
+ radius: 0-1 for percentage of fullsize, or a specified pixel length
+ background: {
+ color: any hexidecimal color value (other formats may or may not work, so best to stick with something like '#000')
+ opacity: 0-1
+ },
+ threshold: 0-1 for the percentage value at which to hide labels (if they're too small)
+ },
+ combine: {
+ threshold: 0-1 for the percentage value at which to combine slices (if they're too small)
+ 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
+ label: any text value of what the combined slice should be labeled
+ }
+ highlight: {
+ opacity: 0-1
+ }
+ }
+ }
+
+More detail and specific examples can be found in the included HTML file.
+
+*/
+
+(function($) {
+
+ // Maximum redraw attempts when fitting labels within the plot
+
+ var REDRAW_ATTEMPTS = 10;
+
+ // Factor by which to shrink the pie when fitting labels within the plot
+
+ var REDRAW_SHRINK = 0.95;
+
+ function init(plot) {
+
+ var canvas = null,
+ target = null,
+ options = null,
+ maxRadius = null,
+ centerLeft = null,
+ centerTop = null,
+ processed = false,
+ ctx = null;
+
+ // interactive variables
+
+ var highlights = [];
+
+ // add hook to determine if pie plugin in enabled, and then perform necessary operations
+
+ plot.hooks.processOptions.push(function(plot, options) {
+ if (options.series.pie.show) {
+
+ options.grid.show = false;
+
+ // set labels.show
+
+ if (options.series.pie.label.show == "auto") {
+ if (options.legend.show) {
+ options.series.pie.label.show = false;
+ } else {
+ options.series.pie.label.show = true;
+ }
+ }
+
+ // set radius
+
+ if (options.series.pie.radius == "auto") {
+ if (options.series.pie.label.show) {
+ options.series.pie.radius = 3/4;
+ } else {
+ options.series.pie.radius = 1;
+ }
+ }
+
+ // ensure sane tilt
+
+ if (options.series.pie.tilt > 1) {
+ options.series.pie.tilt = 1;
+ } else if (options.series.pie.tilt < 0) {
+ options.series.pie.tilt = 0;
+ }
+ }
+ });
+
+ plot.hooks.bindEvents.push(function(plot, eventHolder) {
+ var options = plot.getOptions();
+ if (options.series.pie.show) {
+ if (options.grid.hoverable) {
+ eventHolder.unbind("mousemove").mousemove(onMouseMove);
+ }
+ if (options.grid.clickable) {
+ eventHolder.unbind("click").click(onClick);
+ }
+ }
+ });
+
+ plot.hooks.processDatapoints.push(function(plot, series, data, datapoints) {
+ var options = plot.getOptions();
+ if (options.series.pie.show) {
+ processDatapoints(plot, series, data, datapoints);
+ }
+ });
+
+ plot.hooks.drawOverlay.push(function(plot, octx) {
+ var options = plot.getOptions();
+ if (options.series.pie.show) {
+ drawOverlay(plot, octx);
+ }
+ });
+
+ plot.hooks.draw.push(function(plot, newCtx) {
+ var options = plot.getOptions();
+ if (options.series.pie.show) {
+ draw(plot, newCtx);
+ }
+ });
+
+ function processDatapoints(plot, series, datapoints) {
+ if (!processed) {
+ processed = true;
+ canvas = plot.getCanvas();
+ target = $(canvas).parent();
+ options = plot.getOptions();
+ plot.setData(combine(plot.getData()));
+ }
+ }
+
+ function combine(data) {
+
+ var total = 0,
+ combined = 0,
+ numCombined = 0,
+ color = options.series.pie.combine.color,
+ newdata = [];
+
+ // Fix up the raw data from Flot, ensuring the data is numeric
+
+ for (var i = 0; i < data.length; ++i) {
+
+ var value = data[i].data;
+
+ // If the data is an array, we'll assume that it's a standard
+ // Flot x-y pair, and are concerned only with the second value.
+
+ // Note how we use the original array, rather than creating a
+ // new one; this is more efficient and preserves any extra data
+ // that the user may have stored in higher indexes.
+
+ if ($.isArray(value) && value.length == 1) {
+ value = value[0];
+ }
+
+ if ($.isArray(value)) {
+ // Equivalent to $.isNumeric() but compatible with jQuery < 1.7
+ if (!isNaN(parseFloat(value[1])) && isFinite(value[1])) {
+ value[1] = +value[1];
+ } else {
+ value[1] = 0;
+ }
+ } else if (!isNaN(parseFloat(value)) && isFinite(value)) {
+ value = [1, +value];
+ } else {
+ value = [1, 0];
+ }
+
+ data[i].data = [value];
+ }
+
+ // Sum up all the slices, so we can calculate percentages for each
+
+ for (var i = 0; i < data.length; ++i) {
+ total += data[i].data[0][1];
+ }
+
+ // Count the number of slices with percentages below the combine
+ // threshold; if it turns out to be just one, we won't combine.
+
+ for (var i = 0; i < data.length; ++i) {
+ var value = data[i].data[0][1];
+ if (value / total <= options.series.pie.combine.threshold) {
+ combined += value;
+ numCombined++;
+ if (!color) {
+ color = data[i].color;
+ }
+ }
+ }
+
+ for (var i = 0; i < data.length; ++i) {
+ var value = data[i].data[0][1];
+ if (numCombined < 2 || value / total > options.series.pie.combine.threshold) {
+ newdata.push({
+ data: [[1, value]],
+ color: data[i].color,
+ label: data[i].label,
+ angle: value * Math.PI * 2 / total,
+ percent: value / (total / 100)
+ });
+ }
+ }
+
+ if (numCombined > 1) {
+ newdata.push({
+ data: [[1, combined]],
+ color: color,
+ label: options.series.pie.combine.label,
+ angle: combined * Math.PI * 2 / total,
+ percent: combined / (total / 100)
+ });
+ }
+
+ return newdata;
+ }
+
+ function draw(plot, newCtx) {
+
+ if (!target) {
+ return; // if no series were passed
+ }
+
+ var canvasWidth = plot.getPlaceholder().width(),
+ canvasHeight = plot.getPlaceholder().height(),
+ legendWidth = target.children().filter(".legend").children().width() || 0;
+
+ ctx = newCtx;
+
+ // WARNING: HACK! REWRITE THIS CODE AS SOON AS POSSIBLE!
+
+ // When combining smaller slices into an 'other' slice, we need to
+ // add a new series. Since Flot gives plugins no way to modify the
+ // list of series, the pie plugin uses a hack where the first call
+ // to processDatapoints results in a call to setData with the new
+ // list of series, then subsequent processDatapoints do nothing.
+
+ // The plugin-global 'processed' flag is used to control this hack;
+ // it starts out false, and is set to true after the first call to
+ // processDatapoints.
+
+ // Unfortunately this turns future setData calls into no-ops; they
+ // call processDatapoints, the flag is true, and nothing happens.
+
+ // To fix this we'll set the flag back to false here in draw, when
+ // all series have been processed, so the next sequence of calls to
+ // processDatapoints once again starts out with a slice-combine.
+ // This is really a hack; in 0.9 we need to give plugins a proper
+ // way to modify series before any processing begins.
+
+ processed = false;
+
+ // calculate maximum radius and center point
+
+ maxRadius = Math.min(canvasWidth, canvasHeight / options.series.pie.tilt) / 2;
+ centerTop = canvasHeight / 2 + options.series.pie.offset.top;
+ centerLeft = canvasWidth / 2;
+
+ if (options.series.pie.offset.left == "auto") {
+ if (options.legend.position.match("w")) {
+ centerLeft += legendWidth / 2;
+ } else {
+ centerLeft -= legendWidth / 2;
+ }
+ if (centerLeft < maxRadius) {
+ centerLeft = maxRadius;
+ } else if (centerLeft > canvasWidth - maxRadius) {
+ centerLeft = canvasWidth - maxRadius;
+ }
+ } else {
+ centerLeft += options.series.pie.offset.left;
+ }
+
+ var slices = plot.getData(),
+ attempts = 0;
+
+ // Keep shrinking the pie's radius until drawPie returns true,
+ // indicating that all the labels fit, or we try too many times.
+
+ do {
+ if (attempts > 0) {
+ maxRadius *= REDRAW_SHRINK;
+ }
+ attempts += 1;
+ clear();
+ if (options.series.pie.tilt <= 0.8) {
+ drawShadow();
+ }
+ } while (!drawPie() && attempts < REDRAW_ATTEMPTS);
+
+ if (attempts >= REDRAW_ATTEMPTS) {
+ clear();
+ target.prepend("<div class='error'>Could not draw pie with labels contained inside canvas</div>");
+ }
+
+ if (plot.setSeries && plot.insertLegend) {
+ plot.setSeries(slices);
+ plot.insertLegend();
+ }
+
+ // we're actually done at this point, just defining internal functions at this point
+
+ function clear() {
+ ctx.clearRect(0, 0, canvasWidth, canvasHeight);
+ target.children().filter(".pieLabel, .pieLabelBackground").remove();
+ }
+
+ function drawShadow() {
+
+ var shadowLeft = options.series.pie.shadow.left;
+ var shadowTop = options.series.pie.shadow.top;
+ var edge = 10;
+ var alpha = options.series.pie.shadow.alpha;
+ var radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius;
+
+ if (radius >= canvasWidth / 2 - shadowLeft || radius * options.series.pie.tilt >= canvasHeight / 2 - shadowTop || radius <= edge) {
+ return; // shadow would be outside canvas, so don't draw it
+ }
+
+ ctx.save();
+ ctx.translate(shadowLeft,shadowTop);
+ ctx.globalAlpha = alpha;
+ ctx.fillStyle = "#000";
+
+ // center and rotate to starting position
+
+ ctx.translate(centerLeft,centerTop);
+ ctx.scale(1, options.series.pie.tilt);
+
+ //radius -= edge;
+
+ for (var i = 1; i <= edge; i++) {
+ ctx.beginPath();
+ ctx.arc(0, 0, radius, 0, Math.PI * 2, false);
+ ctx.fill();
+ radius -= i;
+ }
+
+ ctx.restore();
+ }
+
+ function drawPie() {
+
+ var startAngle = Math.PI * options.series.pie.startAngle;
+ var radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius;
+
+ // center and rotate to starting position
+
+ ctx.save();
+ ctx.translate(centerLeft,centerTop);
+ ctx.scale(1, options.series.pie.tilt);
+ //ctx.rotate(startAngle); // start at top; -- This doesn't work properly in Opera
+
+ // draw slices
+
+ ctx.save();
+ var currentAngle = startAngle;
+ for (var i = 0; i < slices.length; ++i) {
+ slices[i].startAngle = currentAngle;
+ drawSlice(slices[i].angle, slices[i].color, true);
+ }
+ ctx.restore();
+
+ // draw slice outlines
+
+ if (options.series.pie.stroke.width > 0) {
+ ctx.save();
+ ctx.lineWidth = options.series.pie.stroke.width;
+ currentAngle = startAngle;
+ for (var i = 0; i < slices.length; ++i) {
+ drawSlice(slices[i].angle, options.series.pie.stroke.color, false);
+ }
+ ctx.restore();
+ }
+
+ // draw donut hole
+
+ drawDonutHole(ctx);
+
+ ctx.restore();
+
+ // Draw the labels, returning true if they fit within the plot
+
+ if (options.series.pie.label.show) {
+ return drawLabels();
+ } else return true;
+
+ function drawSlice(angle, color, fill) {
+
+ if (angle <= 0 || isNaN(angle)) {
+ return;
+ }
+
+ 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);
Code Review / stor4nfv.git / blobdiff