aepnat / simpuskesmas

js/flot/jquery.flot.pie.js

/* Flot plugin for rendering pie charts.

Copyright (c) 2007-2014 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;

		// interAktif 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);

The call to processDatapoints seems to have too many arguments starting with 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) {

The parameter datapoints is not used and could be removed.

The parameter series is not used and could be removed.

			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) {

The variable i already seems to be declared on line 173. Consider using another variable name or omitting the var keyword.

				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) {

The variable i already seems to be declared on line 173. Consider using another variable name or omitting the var keyword.

				var value = data[i].data[0][1];

The variable value already seems to be declared on line 175. Consider using another variable name or omitting the var keyword.

				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) {

The variable i already seems to be declared on line 173. Consider using another variable name or omitting the var keyword.

				var value = data[i].data[0][1];

The variable value already seems to be declared on line 175. Consider using another variable name or omitting the var keyword.

				if (numCombined < 2 || value / total > options.series.pie.combine.threshold) {
					newdata.push(
						$.extend(data[i], {     /* extend to allow keeping all other original data values
						                           and using them e.g. in labelFormatter. */
							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;

The variable maxRadius is changed as part of the loop loop for example by REDRAW_SHRINK on line 317. Only the value of the last iteration will be visible in this function if it is called after the loop.

				}
				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) {

The variable i already seems to be declared on line 393. Consider using another variable name or omitting the var keyword.

						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;

Curly braces around statements make for more readable code and help prevent bugs when you add further statements.

else is not necessary here since all if branches return, consider removing it to reduce nesting and make code more readable.

				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 InterAktif 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]))

Curly braces around statements make for more readable code and help prevent bugs when you add further statements.

				&& (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;

Curly braces around statements make for more readable code and help prevent bugs when you add further statements.

			}
			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:13px;text-align:center;padding:2px;color:" + slice.color + ";'>" + label + " " + 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);