LGMap: geotemco/lib/flot/jquery.flot.js comparison

comparison geotemco/lib/flot/jquery.flot.js @ 0:57bde4830927

first commit

author	Zoe Hong <zhong@mpiwg-berlin.mpg.de>
date	Tue, 24 Mar 2015 11:37:17 +0100
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--1:000000000000
+:57bde4830927
+/* Javascript plotting library for jQuery, version 0.8.3-alpha.
+Copyright (c) 2007-2013 IOLA and Ole Laursen.
+Licensed under the MIT license.
+*/
+// first an inline dependency, jquery.colorhelpers.js, we inline it here
+// for convenience
+/* Plugin for jQuery for working with colors.
+*
+* Version 1.1.
+*
+* Inspiration from jQuery color animation plugin by John Resig.
+*
+* Released under the MIT license by Ole Laursen, October 2009.
+*
+* Examples:
+*
+*   $.color.parse("#fff").scale('rgb', 0.25).add('a', -0.5).toString()
+*   var c = $.color.extract($("#mydiv"), 'background-color');
+*   console.log(c.r, c.g, c.b, c.a);
+*   $.color.make(100, 50, 25, 0.4).toString() // returns "rgba(100,50,25,0.4)"
+*
+* Note that .scale() and .add() return the same modified object
+* instead of making a new one.
+*
+* V. 1.1: Fix error handling so e.g. parsing an empty string does
+* produce a color rather than just crashing.
+*/
+(function($){$.color={};$.color.make=function(r,g,b,a){var o={};o.r=r||0;o.g=g||0;o.b=b||0;o.a=a!=null?a:1;o.add=function(c,d){for(var i=0;i<c.length;++i)o[c.charAt(i)]+=d;return o.normalize()};o.scale=function(c,f){for(var i=0;i<c.length;++i)o[c.charAt(i)]*=f;return o.normalize()};o.toString=function(){if(o.a>=1){return"rgb("+[o.r,o.g,o.b].join(",")+")"}else{return"rgba("+[o.r,o.g,o.b,o.a].join(",")+")"}};o.normalize=function(){function clamp(min,value,max){return value<min?min:value>max?max:value}o.r=clamp(0,parseInt(o.r),255);o.g=clamp(0,parseInt(o.g),255);o.b=clamp(0,parseInt(o.b),255);o.a=clamp(0,o.a,1);return o};o.clone=function(){return $.color.make(o.r,o.b,o.g,o.a)};return o.normalize()};$.color.extract=function(elem,css){var c;do{c=elem.css(css).toLowerCase();if(c!=""&&c!="transparent")break;elem=elem.parent()}while(elem.length&&!$.nodeName(elem.get(0),"body"));if(c=="rgba(0, 0, 0, 0)")c="transparent";return $.color.parse(c)};$.color.parse=function(str){var res,m=$.color.make;if(res=/rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(str))return m(parseInt(res[1],10),parseInt(res[2],10),parseInt(res[3],10));if(res=/rgba\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(str))return m(parseInt(res[1],10),parseInt(res[2],10),parseInt(res[3],10),parseFloat(res[4]));if(res=/rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(str))return m(parseFloat(res[1])*2.55,parseFloat(res[2])*2.55,parseFloat(res[3])*2.55);if(res=/rgba\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(str))return m(parseFloat(res[1])*2.55,parseFloat(res[2])*2.55,parseFloat(res[3])*2.55,parseFloat(res[4]));if(res=/#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(str))return m(parseInt(res[1],16),parseInt(res[2],16),parseInt(res[3],16));if(res=/#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(str))return m(parseInt(res[1]+res[1],16),parseInt(res[2]+res[2],16),parseInt(res[3]+res[3],16));var name=$.trim(str).toLowerCase();if(name=="transparent")return m(255,255,255,0);else{res=lookupColors[name]||[0,0,0];return m(res[0],res[1],res[2])}};var lookupColors={aqua:[0,255,255],azure:[240,255,255],beige:[245,245,220],black:[0,0,0],blue:[0,0,255],brown:[165,42,42],cyan:[0,255,255],darkblue:[0,0,139],darkcyan:[0,139,139],darkgrey:[169,169,169],darkgreen:[0,100,0],darkkhaki:[189,183,107],darkmagenta:[139,0,139],darkolivegreen:[85,107,47],darkorange:[255,140,0],darkorchid:[153,50,204],darkred:[139,0,0],darksalmon:[233,150,122],darkviolet:[148,0,211],fuchsia:[255,0,255],gold:[255,215,0],green:[0,128,0],indigo:[75,0,130],khaki:[240,230,140],lightblue:[173,216,230],lightcyan:[224,255,255],lightgreen:[144,238,144],lightgrey:[211,211,211],lightpink:[255,182,193],lightyellow:[255,255,224],lime:[0,255,0],magenta:[255,0,255],maroon:[128,0,0],navy:[0,0,128],olive:[128,128,0],orange:[255,165,0],pink:[255,192,203],purple:[128,0,128],violet:[128,0,128],red:[255,0,0],silver:[192,192,192],white:[255,255,255],yellow:[255,255,0]}})(jQuery);
+// the actual Flot code
+(function($) {
+	// Cache the prototype hasOwnProperty for faster access
+	var hasOwnProperty = Object.prototype.hasOwnProperty;
+	///////////////////////////////////////////////////////////////////////////
+	// The Canvas object is a wrapper around an HTML5 <canvas> tag.
+	//
+	// @constructor
+	// @param {string} cls List of classes to apply to the canvas.
+	// @param {element} container Element onto which to append the canvas.
+	//
+	// Requiring a container is a little iffy, but unfortunately canvas
+	// operations don't work unless the canvas is attached to the DOM.
+	function Canvas(cls, container) {
+		var element = container.children("." + cls)[0];
+		if (element == null) {
+			element = document.createElement("canvas");
+			element.className = cls;
+			$(element).css({ direction: "ltr", position: "absolute", left: 0, top: 0 })
+				.appendTo(container);
+			// If HTML5 Canvas isn't available, fall back to [Ex|Flash]canvas
+			if (!element.getContext) {
+				if (window.G_vmlCanvasManager) {
+					element = window.G_vmlCanvasManager.initElement(element);
+				} else {
+					throw new Error("Canvas is not available. If you're using IE with a fall-back such as Excanvas, then there's either a mistake in your conditional include, or the page has no DOCTYPE and is rendering in Quirks Mode.");
+				}
+			}
+		}
+		this.element = element;
+		var context = this.context = element.getContext("2d");
+		// Determine the screen's ratio of physical to device-independent
+		// pixels.  This is the ratio between the canvas width that the browser
+		// advertises and the number of pixels actually present in that space.
+		// The iPhone 4, for example, has a device-independent width of 320px,
+		// but its screen is actually 640px wide.  It therefore has a pixel
+		// ratio of 2, while most normal devices have a ratio of 1.
+		var devicePixelRatio = window.devicePixelRatio || 1,
+			backingStoreRatio =
+				context.webkitBackingStorePixelRatio ||
+				context.mozBackingStorePixelRatio ||
+				context.msBackingStorePixelRatio ||
+				context.oBackingStorePixelRatio ||
+				context.backingStorePixelRatio || 1;
+		this.pixelRatio = devicePixelRatio / backingStoreRatio;
+		// Size the canvas to match the internal dimensions of its container
+		this.resize(container.width(), container.height());
+		// Collection of HTML div layers for text overlaid onto the canvas
+		this.textContainer = null;
+		this.text = {};
+		// Cache of text fragments and metrics, so we can avoid expensively
+		// re-calculating them when the plot is re-rendered in a loop.
+		this._textCache = {};
+	}
+	// Resizes the canvas to the given dimensions.
+	//
+	// @param {number} width New width of the canvas, in pixels.
+	// @param {number} width New height of the canvas, in pixels.
+	Canvas.prototype.resize = function(width, height) {
+		if (width <= 0 || height <= 0) {
+			throw new Error("Invalid dimensions for plot, width = " + width + ", height = " + height);
+		}
+		var element = this.element,
+			context = this.context,
+			pixelRatio = this.pixelRatio;
+		// Resize the canvas, increasing its density based on the display's
+		// pixel ratio; basically giving it more pixels without increasing the
+		// size of its element, to take advantage of the fact that retina
+		// displays have that many more pixels in the same advertised space.
+		// Resizing should reset the state (excanvas seems to be buggy though)
+		if (this.width != width) {
+			element.width = width * pixelRatio;
+			element.style.width = width + "px";
+			this.width = width;
+		}
+		if (this.height != height) {
+			element.height = height * pixelRatio;
+			element.style.height = height + "px";
+			this.height = height;
+		}
+		// Save the context, so we can reset in case we get replotted.  The
+		// restore ensure that we're really back at the initial state, and
+		// should be safe even if we haven't saved the initial state yet.
+		context.restore();
+		context.save();
+		// Scale the coordinate space to match the display density; so even though we
+		// may have twice as many pixels, we still want lines and other drawing to
+		// appear at the same size; the extra pixels will just make them crisper.
+		context.scale(pixelRatio, pixelRatio);
+	};
+	// Clears the entire canvas area, not including any overlaid HTML text
+	Canvas.prototype.clear = function() {
+		this.context.clearRect(0, 0, this.width, this.height);
+	};
+	// Finishes rendering the canvas, including managing the text overlay.
+	Canvas.prototype.render = function() {
+		var cache = this._textCache;
+		// For each text layer, add elements marked as active that haven't
+		// already been rendered, and remove those that are no longer active.
+		for (var layerKey in cache) {
+			if (hasOwnProperty.call(cache, layerKey)) {
+				var layer = this.getTextLayer(layerKey),
+					layerCache = cache[layerKey];
+				layer.hide();
+				for (var styleKey in layerCache) {
+					if (hasOwnProperty.call(layerCache, styleKey)) {
+						var styleCache = layerCache[styleKey];
+						for (var key in styleCache) {
+							if (hasOwnProperty.call(styleCache, key)) {
+								var positions = styleCache[key].positions;
+								for (var i = 0, position; position = positions[i]; i++) {
+									if (position.active) {
+										if (!position.rendered) {
+											layer.append(position.element);
+											position.rendered = true;
+										}
+									} else {
+										positions.splice(i--, 1);
+										if (position.rendered) {
+											position.element.detach();
+										}
+									}
+								}
+								if (positions.length == 0) {
+									delete styleCache[key];
+								}
+							}
+						}
+					}
+				}
+				layer.show();
+			}
+		}
+	};
+	// Creates (if necessary) and returns the text overlay container.
+	//
+	// @param {string} classes String of space-separated CSS classes used to
+	//     uniquely identify the text layer.
+	// @return {object} The jQuery-wrapped text-layer div.
+	Canvas.prototype.getTextLayer = function(classes) {
+		var layer = this.text[classes];
+		// Create the text layer if it doesn't exist
+		if (layer == null) {
+			// Create the text layer container, if it doesn't exist
+			if (this.textContainer == null) {
+				this.textContainer = $("<div class='flot-text'></div>")
+					.css({
+						position: "absolute",
+						top: 0,
+						left: 0,
+						bottom: 0,
+						right: 0,
+						'font-size': "smaller",
+						color: "#545454"
+					})
+					.insertAfter(this.element);
+			}
+			layer = this.text[classes] = $("<div></div>")
+				.addClass(classes)
+				.css({
+					position: "absolute",
+					top: 0,
+					left: 0,
+					bottom: 0,
+					right: 0
+				})
+				.appendTo(this.textContainer);
+		}
+		return layer;
+	};
+	// Creates (if necessary) and returns a text info object.
+	//
+	// The object looks like this:
+	//
+	// {
+	//     width: Width of the text's wrapper div.
+	//     height: Height of the text's wrapper div.
+	//     element: The jQuery-wrapped HTML div containing the text.
+	//     positions: Array of positions at which this text is drawn.
+	// }
+	//
+	// The positions array contains objects that look like this:
+	//
+	// {
+	//     active: Flag indicating whether the text should be visible.
+	//     rendered: Flag indicating whether the text is currently visible.
+	//     element: The jQuery-wrapped HTML div containing the text.
+	//     x: X coordinate at which to draw the text.
+	//     y: Y coordinate at which to draw the text.
+	// }
+	//
+	// Each position after the first receives a clone of the original element.
+	//
+	// The idea is that that the width, height, and general 'identity' of the
+	// text is constant no matter where it is placed; the placements are a
+	// secondary property.
+	//
+	// Canvas maintains a cache of recently-used text info objects; getTextInfo
+	// either returns the cached element or creates a new entry.
+	//
+	// @param {string} layer A string of space-separated CSS classes uniquely
+	//     identifying the layer containing this text.
+	// @param {string} text Text string to retrieve info for.
+	// @param {(string|object)=} font Either a string of space-separated CSS
+	//     classes or a font-spec object, defining the text's font and style.
+	// @param {number=} angle Angle at which to rotate the text, in degrees.
+	//     Angle is currently unused, it will be implemented in the future.
+	// @param {number=} width Maximum width of the text before it wraps.
+	// @return {object} a text info object.
+	Canvas.prototype.getTextInfo = function(layer, text, font, angle, width) {
+		var textStyle, layerCache, styleCache, info;
+		// Cast the value to a string, in case we were given a number or such
+		text = "" + text;
+		// If the font is a font-spec object, generate a CSS font definition
+		if (typeof font === "object") {
+			textStyle = font.style + " " + font.variant + " " + font.weight + " " + font.size + "px/" + font.lineHeight + "px " + font.family;
+		} else {
+			textStyle = font;
+		}
+		// Retrieve (or create) the cache for the text's layer and styles
+		layerCache = this._textCache[layer];
+		if (layerCache == null) {
+			layerCache = this._textCache[layer] = {};
+		}
+		styleCache = layerCache[textStyle];
+		if (styleCache == null) {
+			styleCache = layerCache[textStyle] = {};
+		}
+		info = styleCache[text];
+		// If we can't find a matching element in our cache, create a new one
+		if (info == null) {
+			var element = $("<div></div>").html(text)
+				.css({
+					position: "absolute",
+					'max-width': width,
+					top: -9999
+				})
+				.appendTo(this.getTextLayer(layer));
+			if (typeof font === "object") {
+				element.css({
+					font: textStyle,
+					color: font.color
+				});
+			} else if (typeof font === "string") {
+				element.addClass(font);
+			}
+			info = styleCache[text] = {
+				width: element.outerWidth(true),
+				height: element.outerHeight(true),
+				element: element,
+				positions: []
+			};
+			element.detach();
+		}
+		return info;
+	};
+	// Adds a text string to the canvas text overlay.
+	//
+	// The text isn't drawn immediately; it is marked as rendering, which will
+	// result in its addition to the canvas on the next render pass.
+	//
+	// @param {string} layer A string of space-separated CSS classes uniquely
+	//     identifying the layer containing this text.
+	// @param {number} x X coordinate at which to draw the text.
+	// @param {number} y Y coordinate at which to draw the text.
+	// @param {string} text Text string to draw.
+	// @param {(string|object)=} font Either a string of space-separated CSS
+	//     classes or a font-spec object, defining the text's font and style.
+	// @param {number=} angle Angle at which to rotate the text, in degrees.
+	//     Angle is currently unused, it will be implemented in the future.
+	// @param {number=} width Maximum width of the text before it wraps.
+	// @param {string=} halign Horizontal alignment of the text; either "left",
+	//     "center" or "right".
+	// @param {string=} valign Vertical alignment of the text; either "top",
+	//     "middle" or "bottom".
+	Canvas.prototype.addText = function(layer, x, y, text, font, angle, width, halign, valign) {
+		var info = this.getTextInfo(layer, text, font, angle, width),
+			positions = info.positions;
+		// Tweak the div's position to match the text's alignment
+		if (halign == "center") {
+			x -= info.width / 2;
+		} else if (halign == "right") {
+			x -= info.width;
+		}
+		if (valign == "middle") {
+			y -= info.height / 2;
+		} else if (valign == "bottom") {
+			y -= info.height;
+		}
+		// Determine whether this text already exists at this position.
+		// If so, mark it for inclusion in the next render pass.
+		for (var i = 0, position; position = positions[i]; i++) {
+			if (position.x == x && position.y == y) {
+				position.active = true;
+				return;
+			}
+		}
+		// If the text doesn't exist at this position, create a new entry
+		// For the very first position we'll re-use the original element,
+		// while for subsequent ones we'll clone it.
+		position = {
+			active: true,
+			rendered: false,
+			element: positions.length ? info.element.clone() : info.element,
+			x: x,
+			y: y
+		};
+		positions.push(position);
+		// Move the element to its final position within the container
+		position.element.css({
+			top: Math.round(y),
+			left: Math.round(x),
+			'text-align': halign	// In case the text wraps
+		});
+	};
+	// Removes one or more text strings from the canvas text overlay.
+	//
+	// If no parameters are given, all text within the layer is removed.
+	//
+	// Note that the text is not immediately removed; it is simply marked as
+	// inactive, which will result in its removal on the next render pass.
+	// This avoids the performance penalty for 'clear and redraw' behavior,
+	// where we potentially get rid of all text on a layer, but will likely
+	// add back most or all of it later, as when redrawing axes, for example.
+	//
+	// @param {string} layer A string of space-separated CSS classes uniquely
+	//     identifying the layer containing this text.
+	// @param {number=} x X coordinate of the text.
+	// @param {number=} y Y coordinate of the text.
+	// @param {string=} text Text string to remove.
+	// @param {(string|object)=} font Either a string of space-separated CSS
+	//     classes or a font-spec object, defining the text's font and style.
+	// @param {number=} angle Angle at which the text is rotated, in degrees.
+	//     Angle is currently unused, it will be implemented in the future.
+	Canvas.prototype.removeText = function(layer, x, y, text, font, angle) {
+		if (text == null) {
+			var layerCache = this._textCache[layer];
+			if (layerCache != null) {
+				for (var styleKey in layerCache) {
+					if (hasOwnProperty.call(layerCache, styleKey)) {
+						var styleCache = layerCache[styleKey];
+						for (var key in styleCache) {
+							if (hasOwnProperty.call(styleCache, key)) {
+								var positions = styleCache[key].positions;
+								for (var i = 0, position; position = positions[i]; i++) {
+									position.active = false;
+								}
+							}
+						}
+					}
+				}
+			}
+		} else {
+			var positions = this.getTextInfo(layer, text, font, angle).positions;
+			for (var i = 0, position; position = positions[i]; i++) {
+				if (position.x == x && position.y == y) {
+					position.active = false;
+				}
+			}
+		}
+	};
+	///////////////////////////////////////////////////////////////////////////
+	// The top-level container for the entire plot.
+function Plot(placeholder, data_, options_, plugins) {
+// data is on the form:
+//   [ series1, series2 ... ]
+// where series is either just the data as [ [x1, y1], [x2, y2], ... ]
+// or { data: [ [x1, y1], [x2, y2], ... ], label: "some label", ... }
+var series = [],
+options = {
+// the color theme used for graphs
+colors: ["#edc240", "#afd8f8", "#cb4b4b", "#4da74d", "#9440ed"],
+legend: {
+show: true,
+noColumns: 1, // number of colums in legend table
+labelFormatter: null, // fn: string -> string
+labelBoxBorderColor: "#ccc", // border color for the little label boxes
+container: null, // container (as jQuery object) to put legend in, null means default on top of graph
+position: "ne", // position of default legend container within plot
+margin: 5, // distance from grid edge to default legend container within plot
+backgroundColor: null, // null means auto-detect
+backgroundOpacity: 0.85, // set to 0 to avoid background
+sorted: null    // default to no legend sorting
+},
+xaxis: {
+show: null, // null = auto-detect, true = always, false = never
+position: "bottom", // or "top"
+mode: null, // null or "time"
+font: null, // null (derived from CSS in placeholder) or object like { size: 11, lineHeight: 13, style: "italic", weight: "bold", family: "sans-serif", variant: "small-caps" }
+color: null, // base color, labels, ticks
+tickColor: null, // possibly different color of ticks, e.g. "rgba(0,0,0,0.15)"
+transform: null, // null or f: number -> number to transform axis
+inverseTransform: null, // if transform is set, this should be the inverse function
+min: null, // min. value to show, null means set automatically
+max: null, // max. value to show, null means set automatically
+autoscaleMargin: null, // margin in % to add if auto-setting min/max
+ticks: null, // either [1, 3] or [[1, "a"], 3] or (fn: axis info -> ticks) or app. number of ticks for auto-ticks
+tickFormatter: null, // fn: number -> string
+labelWidth: null, // size of tick labels in pixels
+labelHeight: null,
+reserveSpace: null, // whether to reserve space even if axis isn't shown
+tickLength: null, // size in pixels of ticks, or "full" for whole line
+alignTicksWithAxis: null, // axis number or null for no sync
+tickDecimals: null, // no. of decimals, null means auto
+tickSize: null, // number or [number, "unit"]
+minTickSize: null // number or [number, "unit"]
+},
+yaxis: {
+autoscaleMargin: 0.02,
+position: "left" // or "right"
+},
+xaxes: [],
+yaxes: [],
+series: {
+points: {
+show: false,
+radius: 3,
+lineWidth: 2, // in pixels
+fill: true,
+fillColor: "#ffffff",
+symbol: "circle" // or callback
+},
+lines: {
+// we don't put in show: false so we can see
+// whether lines were actively disabled
+lineWidth: 2, // in pixels
+fill: false,
+fillColor: null,
+steps: false
+// Omit 'zero', so we can later default its value to
+// match that of the 'fill' option.
+},
+bars: {
+show: false,
+lineWidth: 2, // in pixels
+barWidth: 1, // in units of the x axis
+fill: true,
+fillColor: null,
+align: "left", // "left", "right", or "center"
+horizontal: false,
+zero: true
+},
+shadowSize: 3,
+highlightColor: null
+},
+grid: {
+show: true,
+aboveData: false,
+color: "#545454", // primary color used for outline and labels
+backgroundColor: null, // null for transparent, else color
+borderColor: null, // set if different from the grid color
+tickColor: null, // color for the ticks, e.g. "rgba(0,0,0,0.15)"
+margin: 0, // distance from the canvas edge to the grid
+labelMargin: 5, // in pixels
+axisMargin: 8, // in pixels
+borderWidth: 2, // in pixels
+minBorderMargin: null, // in pixels, null means taken from points radius
+markings: null, // array of ranges or fn: axes -> array of ranges
+markingsColor: "#f4f4f4",
+markingsLineWidth: 2,
+// interactive stuff
+clickable: false,
+hoverable: false,
+autoHighlight: true, // highlight in case mouse is near
+mouseActiveRadius: 10 // how far the mouse can be away to activate an item
+},
+interaction: {
+redrawOverlayInterval: 1000/60 // time between updates, -1 means in same flow
+},
+hooks: {}
+},
+surface = null,     // the canvas for the plot itself
+overlay = null,     // canvas for interactive stuff on top of plot
+eventHolder = null, // jQuery object that events should be bound to
+ctx = null, octx = null,
+xaxes = [], yaxes = [],
+plotOffset = { left: 0, right: 0, top: 0, bottom: 0},
+plotWidth = 0, plotHeight = 0,
+hooks = {
+processOptions: [],
+processRawData: [],
+processDatapoints: [],
+processOffset: [],
+drawBackground: [],
+drawSeries: [],
+draw: [],
+bindEvents: [],
+drawOverlay: [],
+shutdown: []
+},
+plot = this;
+// public functions
+plot.setData = setData;
+plot.setupGrid = setupGrid;
+plot.draw = draw;
+plot.getPlaceholder = function() { return placeholder; };
+plot.getCanvas = function() { return surface.element; };
+plot.getPlotOffset = function() { return plotOffset; };
+plot.width = function () { return plotWidth; };
+plot.height = function () { return plotHeight; };
+plot.offset = function () {
+var o = eventHolder.offset();
+o.left += plotOffset.left;
+o.top += plotOffset.top;
+return o;
+};
+plot.getData = function () { return series; };
+plot.getAxes = function () {
+var res = {}, i;
+$.each(xaxes.concat(yaxes), function (_, axis) {
+if (axis)
+res[axis.direction + (axis.n != 1 ? axis.n : "") + "axis"] = axis;
+});
+return res;
+};
+plot.getXAxes = function () { return xaxes; };
+plot.getYAxes = function () { return yaxes; };
+plot.c2p = canvasToAxisCoords;
+plot.p2c = axisToCanvasCoords;
+plot.getOptions = function () { return options; };
+plot.highlight = highlight;
+plot.unhighlight = unhighlight;
+plot.triggerRedrawOverlay = triggerRedrawOverlay;
+plot.pointOffset = function(point) {
+return {
+left: parseInt(xaxes[axisNumber(point, "x") - 1].p2c(+point.x) + plotOffset.left, 10),
+top: parseInt(yaxes[axisNumber(point, "y") - 1].p2c(+point.y) + plotOffset.top, 10)
+};
+};
+plot.shutdown = shutdown;
+plot.destroy = function () {
+shutdown();
+placeholder.removeData("plot").empty();
+series = [];
+options = null;
+surface = null;
+overlay = null;
+eventHolder = null;
+ctx = null;
+octx = null;
+xaxes = [];
+yaxes = [];
+hooks = null;
+highlights = [];
+plot = null;
+};
+plot.resize = function () {
+	var width = placeholder.width(),
+		height = placeholder.height();
+surface.resize(width, height);
+overlay.resize(width, height);
+};
+// public attributes
+plot.hooks = hooks;
+// initialize
+initPlugins(plot);
+parseOptions(options_);
+setupCanvases();
+setData(data_);
+setupGrid();
+draw();
+bindEvents();
+function executeHooks(hook, args) {
+args = [plot].concat(args);
+for (var i = 0; i < hook.length; ++i)
+hook[i].apply(this, args);
+}
+function initPlugins() {
+// References to key classes, allowing plugins to modify them
+var classes = {
+Canvas: Canvas
+};
+for (var i = 0; i < plugins.length; ++i) {
+var p = plugins[i];
+p.init(plot, classes);
+if (p.options)
+$.extend(true, options, p.options);
+}
+}
+function parseOptions(opts) {
+$.extend(true, options, opts);
+// $.extend merges arrays, rather than replacing them.  When less
+// colors are provided than the size of the default palette, we
+// end up with those colors plus the remaining defaults, which is
+// not expected behavior; avoid it by replacing them here.
+if (opts && opts.colors) {
+	options.colors = opts.colors;
+}
+if (options.xaxis.color == null)
+options.xaxis.color = $.color.parse(options.grid.color).scale('a', 0.22).toString();
+if (options.yaxis.color == null)
+options.yaxis.color = $.color.parse(options.grid.color).scale('a', 0.22).toString();
+if (options.xaxis.tickColor == null) // grid.tickColor for back-compatibility
+options.xaxis.tickColor = options.grid.tickColor || options.xaxis.color;
+if (options.yaxis.tickColor == null) // grid.tickColor for back-compatibility
+options.yaxis.tickColor = options.grid.tickColor || options.yaxis.color;
+if (options.grid.borderColor == null)
+options.grid.borderColor = options.grid.color;
+if (options.grid.tickColor == null)
+options.grid.tickColor = $.color.parse(options.grid.color).scale('a', 0.22).toString();
+// Fill in defaults for axis options, including any unspecified
+// font-spec fields, if a font-spec was provided.
+// If no x/y axis options were provided, create one of each anyway,
+// since the rest of the code assumes that they exist.
+var i, axisOptions, axisCount,
+fontSize = placeholder.css("font-size"),
+fontSizeDefault = fontSize ? +fontSize.replace("px", "") : 13,
+fontDefaults = {
+style: placeholder.css("font-style"),
+size: Math.round(0.8 * fontSizeDefault),
+variant: placeholder.css("font-variant"),
+weight: placeholder.css("font-weight"),
+family: placeholder.css("font-family")
+};
+axisCount = options.xaxes.length || 1;
+for (i = 0; i < axisCount; ++i) {
+axisOptions = options.xaxes[i];
+if (axisOptions && !axisOptions.tickColor) {
+axisOptions.tickColor = axisOptions.color;
+}
+axisOptions = $.extend(true, {}, options.xaxis, axisOptions);
+options.xaxes[i] = axisOptions;
+if (axisOptions.font) {
+axisOptions.font = $.extend({}, fontDefaults, axisOptions.font);
+if (!axisOptions.font.color) {
+axisOptions.font.color = axisOptions.color;
+}
+if (!axisOptions.font.lineHeight) {
+axisOptions.font.lineHeight = Math.round(axisOptions.font.size * 1.15);
+}
+}
+}
+axisCount = options.yaxes.length || 1;
+for (i = 0; i < axisCount; ++i) {
+axisOptions = options.yaxes[i];
+if (axisOptions && !axisOptions.tickColor) {
+axisOptions.tickColor = axisOptions.color;
+}
+axisOptions = $.extend(true, {}, options.yaxis, axisOptions);
+options.yaxes[i] = axisOptions;
+if (axisOptions.font) {
+axisOptions.font = $.extend({}, fontDefaults, axisOptions.font);
+if (!axisOptions.font.color) {
+axisOptions.font.color = axisOptions.color;
+}
+if (!axisOptions.font.lineHeight) {
+axisOptions.font.lineHeight = Math.round(axisOptions.font.size * 1.15);
+}
+}
+}
+// backwards compatibility, to be removed in future
+if (options.xaxis.noTicks && options.xaxis.ticks == null)
+options.xaxis.ticks = options.xaxis.noTicks;
+if (options.yaxis.noTicks && options.yaxis.ticks == null)
+options.yaxis.ticks = options.yaxis.noTicks;
+if (options.x2axis) {
+options.xaxes[1] = $.extend(true, {}, options.xaxis, options.x2axis);
+options.xaxes[1].position = "top";
+}
+if (options.y2axis) {
+options.yaxes[1] = $.extend(true, {}, options.yaxis, options.y2axis);
+options.yaxes[1].position = "right";
+}
+if (options.grid.coloredAreas)
+options.grid.markings = options.grid.coloredAreas;
+if (options.grid.coloredAreasColor)
+options.grid.markingsColor = options.grid.coloredAreasColor;
+if (options.lines)
+$.extend(true, options.series.lines, options.lines);
+if (options.points)
+$.extend(true, options.series.points, options.points);
+if (options.bars)
+$.extend(true, options.series.bars, options.bars);
+if (options.shadowSize != null)
+options.series.shadowSize = options.shadowSize;
+if (options.highlightColor != null)
+options.series.highlightColor = options.highlightColor;
+// save options on axes for future reference
+for (i = 0; i < options.xaxes.length; ++i)
+getOrCreateAxis(xaxes, i + 1).options = options.xaxes[i];
+for (i = 0; i < options.yaxes.length; ++i)
+getOrCreateAxis(yaxes, i + 1).options = options.yaxes[i];
+// add hooks from options
+for (var n in hooks)
+if (options.hooks[n] && options.hooks[n].length)
+hooks[n] = hooks[n].concat(options.hooks[n]);
+executeHooks(hooks.processOptions, [options]);
+}
+function setData(d) {
+series = parseData(d);
+fillInSeriesOptions();
+processData();
+}
+function parseData(d) {
+var res = [];
+for (var i = 0; i < d.length; ++i) {
+var s = $.extend(true, {}, options.series);
+if (d[i].data != null) {
+s.data = d[i].data; // move the data instead of deep-copy
+delete d[i].data;
+$.extend(true, s, d[i]);
+d[i].data = s.data;
+}
+else
+s.data = d[i];
+res.push(s);
+}
+return res;
+}
+function axisNumber(obj, coord) {
+var a = obj[coord + "axis"];
+if (typeof a == "object") // if we got a real axis, extract number
+a = a.n;
+if (typeof a != "number")
+a = 1; // default to first axis
+return a;
+}
+function allAxes() {
+// return flat array without annoying null entries
+return $.grep(xaxes.concat(yaxes), function (a) { return a; });
+}
+function canvasToAxisCoords(pos) {
+// return an object with x/y corresponding to all used axes
+var res = {}, i, axis;
+for (i = 0; i < xaxes.length; ++i) {
+axis = xaxes[i];
+if (axis && axis.used)
+res["x" + axis.n] = axis.c2p(pos.left);
+}
+for (i = 0; i < yaxes.length; ++i) {
+axis = yaxes[i];
+if (axis && axis.used)
+res["y" + axis.n] = axis.c2p(pos.top);
+}
+if (res.x1 !== undefined)
+res.x = res.x1;
+if (res.y1 !== undefined)
+res.y = res.y1;
+return res;
+}
+function axisToCanvasCoords(pos) {
+// get canvas coords from the first pair of x/y found in pos
+var res = {}, i, axis, key;
+for (i = 0; i < xaxes.length; ++i) {
+axis = xaxes[i];
+if (axis && axis.used) {
+key = "x" + axis.n;
+if (pos[key] == null && axis.n == 1)
+key = "x";
+if (pos[key] != null) {
+res.left = axis.p2c(pos[key]);
+break;
+}
+}
+}
+for (i = 0; i < yaxes.length; ++i) {
+axis = yaxes[i];
+if (axis && axis.used) {
+key = "y" + axis.n;
+if (pos[key] == null && axis.n == 1)
+key = "y";
+if (pos[key] != null) {
+res.top = axis.p2c(pos[key]);
+break;
+}
+}
+}
+return res;
+}
+function getOrCreateAxis(axes, number) {
+if (!axes[number - 1])
+axes[number - 1] = {
+n: number, // save the number for future reference
+direction: axes == xaxes ? "x" : "y",
+options: $.extend(true, {}, axes == xaxes ? options.xaxis : options.yaxis)
+};
+return axes[number - 1];
+}
+function fillInSeriesOptions() {
+var neededColors = series.length, maxIndex = -1, i;
+// Subtract the number of series that already have fixed colors or
+// color indexes from the number that we still need to generate.
+for (i = 0; i < series.length; ++i) {
+var sc = series[i].color;
+if (sc != null) {
+neededColors--;
+if (typeof sc == "number" && sc > maxIndex) {
+maxIndex = sc;
+}
+}
+}
+// If any of the series have fixed color indexes, then we need to
+// generate at least as many colors as the highest index.
+if (neededColors <= maxIndex) {
+neededColors = maxIndex + 1;
+}
+// Generate all the colors, using first the option colors and then
+// variations on those colors once they're exhausted.
+var c, colors = [], colorPool = options.colors,
+colorPoolSize = colorPool.length, variation = 0;
+for (i = 0; i < neededColors; i++) {
+c = $.color.parse(colorPool[i % colorPoolSize] || "#666");
+// Each time we exhaust the colors in the pool we adjust
+// a scaling factor used to produce more variations on
+// those colors. The factor alternates negative/positive
+// to produce lighter/darker colors.
+// Reset the variation after every few cycles, or else
+// it will end up producing only white or black colors.
+if (i % colorPoolSize == 0 && i) {
+if (variation >= 0) {
+if (variation < 0.5) {
+variation = -variation - 0.2;
+} else variation = 0;
+} else variation = -variation;
+}
+colors[i] = c.scale('rgb', 1 + variation);
+}
+// Finalize the series options, filling in their colors
+var colori = 0, s;
+for (i = 0; i < series.length; ++i) {
+s = series[i];
+// assign colors
+if (s.color == null) {
+s.color = colors[colori].toString();
+++colori;
+}
+else if (typeof s.color == "number")
+s.color = colors[s.color].toString();
+// turn on lines automatically in case nothing is set
+if (s.lines.show == null) {
+var v, show = true;
+for (v in s)
+if (s[v] && s[v].show) {
+show = false;
+break;
+}
+if (show)
+s.lines.show = true;
+}
+// If nothing was provided for lines.zero, default it to match
+// lines.fill, since areas by default should extend to zero.
+if (s.lines.zero == null) {
+s.lines.zero = !!s.lines.fill;
+}
+// setup axes
+s.xaxis = getOrCreateAxis(xaxes, axisNumber(s, "x"));
+s.yaxis = getOrCreateAxis(yaxes, axisNumber(s, "y"));
+}
+}
+function processData() {
+var topSentry = Number.POSITIVE_INFINITY,
+bottomSentry = Number.NEGATIVE_INFINITY,
+fakeInfinity = Number.MAX_VALUE,
+i, j, k, m, length,
+s, points, ps, x, y, axis, val, f, p,
+data, format;
+function updateAxis(axis, min, max) {
+if (min < axis.datamin && min != -fakeInfinity)
+axis.datamin = min;
+if (max > axis.datamax && max != fakeInfinity)
+axis.datamax = max;
+}
+$.each(allAxes(), function (_, axis) {
+// init axis
+axis.datamin = topSentry;
+axis.datamax = bottomSentry;
+axis.used = false;
+});
+for (i = 0; i < series.length; ++i) {
+s = series[i];
+s.datapoints = { points: [] };
+executeHooks(hooks.processRawData, [ s, s.data, s.datapoints ]);
+}
+// first pass: clean and copy data
+for (i = 0; i < series.length; ++i) {
+s = series[i];
+data = s.data;
+format = s.datapoints.format;
+if (!format) {
+format = [];
+// find out how to copy
+format.push({ x: true, number: true, required: true });
+format.push({ y: true, number: true, required: true });
+if (s.bars.show || (s.lines.show && s.lines.fill)) {
+var autoscale = !!((s.bars.show && s.bars.zero) || (s.lines.show && s.lines.zero));
+format.push({ y: true, number: true, required: false, defaultValue: 0, autoscale: autoscale });
+if (s.bars.horizontal) {
+delete format[format.length - 1].y;
+format[format.length - 1].x = true;
+}
+}
+s.datapoints.format = format;
+}
+if (s.datapoints.pointsize != null)
+continue; // already filled in
+s.datapoints.pointsize = format.length;
+ps = s.datapoints.pointsize;
+points = s.datapoints.points;
+var insertSteps = s.lines.show && s.lines.steps;
+s.xaxis.used = s.yaxis.used = true;
+for (j = k = 0; j < data.length; ++j, k += ps) {
+p = data[j];
+var nullify = p == null;
+if (!nullify) {
+for (m = 0; m < ps; ++m) {
+val = p[m];
+f = format[m];
+if (f) {
+if (f.number && val != null) {
+val = +val; // convert to number
+if (isNaN(val))
+val = null;
+else if (val == Infinity)
+val = fakeInfinity;
+else if (val == -Infinity)
+val = -fakeInfinity;
+}
+if (val == null) {
+if (f.required)
+nullify = true;
+if (f.defaultValue != null)
+val = f.defaultValue;
+}
+}
+points[k + m] = val;
+}
+}
+if (nullify) {
+for (m = 0; m < ps; ++m) {
+val = points[k + m];
+if (val != null) {
+f = format[m];
+// extract min/max info
+if (f.autoscale !== false) {
+if (f.x) {
+updateAxis(s.xaxis, val, val);
+}
+if (f.y) {
+updateAxis(s.yaxis, val, val);
+}
+}
+}
+points[k + m] = null;
+}
+}
+else {
+// a little bit of line specific stuff that
+// perhaps shouldn't be here, but lacking
+// better means...
+if (insertSteps && k > 0
+&& points[k - ps] != null
+&& points[k - ps] != points[k]
+&& points[k - ps + 1] != points[k + 1]) {
+// copy the point to make room for a middle point
+for (m = 0; m < ps; ++m)
+points[k + ps + m] = points[k + m];
+// middle point has same y
+points[k + 1] = points[k - ps + 1];
+// we've added a point, better reflect that
+k += ps;
+}
+}
+}
+}
+// give the hooks a chance to run
+for (i = 0; i < series.length; ++i) {
+s = series[i];
+executeHooks(hooks.processDatapoints, [ s, s.datapoints]);
+}
+// second pass: find datamax/datamin for auto-scaling
+for (i = 0; i < series.length; ++i) {
+s = series[i];
+points = s.datapoints.points;
+ps = s.datapoints.pointsize;
+format = s.datapoints.format;
+var xmin = topSentry, ymin = topSentry,
+xmax = bottomSentry, ymax = bottomSentry;
+for (j = 0; j < points.length; j += ps) {
+if (points[j] == null)
+continue;
+for (m = 0; m < ps; ++m) {
+val = points[j + m];
+f = format[m];
+if (!f || f.autoscale === false || val == fakeInfinity || val == -fakeInfinity)
+continue;
+if (f.x) {
+if (val < xmin)
+xmin = val;
+if (val > xmax)
+xmax = val;
+}
+if (f.y) {
+if (val < ymin)
+ymin = val;
+if (val > ymax)
+ymax = val;
+}
+}
+}
+if (s.bars.show) {
+// make sure we got room for the bar on the dancing floor
+var delta;
+switch (s.bars.align) {
+case "left":
+delta = 0;
+break;
+case "right":
+delta = -s.bars.barWidth;
+break;
+default:
+delta = -s.bars.barWidth / 2;
+}
+if (s.bars.horizontal) {
+ymin += delta;
+ymax += delta + s.bars.barWidth;
+}
+else {
+xmin += delta;
+xmax += delta + s.bars.barWidth;
+}
+}
+updateAxis(s.xaxis, xmin, xmax);
+updateAxis(s.yaxis, ymin, ymax);
+}
+$.each(allAxes(), function (_, axis) {
+if (axis.datamin == topSentry)
+axis.datamin = null;
+if (axis.datamax == bottomSentry)
+axis.datamax = null;
+});
+}
+function setupCanvases() {
+// Make sure the placeholder is clear of everything except canvases
+// from a previous plot in this container that we'll try to re-use.
+placeholder.css("padding", 0) // padding messes up the positioning
+.children().filter(function(){
+return !$(this).hasClass("flot-overlay") && !$(this).hasClass('flot-base');
+}).remove();
+if (placeholder.css("position") == 'static')
+placeholder.css("position", "relative"); // for positioning labels and overlay
+surface = new Canvas("flot-base", placeholder);
+overlay = new Canvas("flot-overlay", placeholder); // overlay canvas for interactive features
+ctx = surface.context;
+octx = overlay.context;
+// define which element we're listening for events on
+eventHolder = $(overlay.element).unbind();
+// If we're re-using a plot object, shut down the old one
+var existing = placeholder.data("plot");
+if (existing) {
+existing.shutdown();
+overlay.clear();
+}
+// save in case we get replotted
+placeholder.data("plot", plot);
+}
+function bindEvents() {
+// bind events
+if (options.grid.hoverable) {
+eventHolder.mousemove(onMouseMove);
+// Use bind, rather than .mouseleave, because we officially
+// still support jQuery 1.2.6, which doesn't define a shortcut
+// for mouseenter or mouseleave.  This was a bug/oversight that
+// was fixed somewhere around 1.3.x.  We can return to using
+// .mouseleave when we drop support for 1.2.6.
+eventHolder.bind("mouseleave", onMouseLeave);
+}
+if (options.grid.clickable)
+eventHolder.click(onClick);
+executeHooks(hooks.bindEvents, [eventHolder]);
+}
+function shutdown() {
+if (redrawTimeout)
+clearTimeout(redrawTimeout);
+eventHolder.unbind("mousemove", onMouseMove);
+eventHolder.unbind("mouseleave", onMouseLeave);
+eventHolder.unbind("click", onClick);
+executeHooks(hooks.shutdown, [eventHolder]);
+}
+function setTransformationHelpers(axis) {
+// set helper functions on the axis, assumes plot area
+// has been computed already
+function identity(x) { return x; }
+var s, m, t = axis.options.transform || identity,
+it = axis.options.inverseTransform;
+// precompute how much the axis is scaling a point
+// in canvas space
+if (axis.direction == "x") {
+s = axis.scale = plotWidth / Math.abs(t(axis.max) - t(axis.min));
+m = Math.min(t(axis.max), t(axis.min));
+}
+else {
+s = axis.scale = plotHeight / Math.abs(t(axis.max) - t(axis.min));
+s = -s;
+m = Math.max(t(axis.max), t(axis.min));
+}
+// data point to canvas coordinate
+if (t == identity) // slight optimization
+axis.p2c = function (p) { return (p - m) * s; };
+else
+axis.p2c = function (p) { return (t(p) - m) * s; };
+// canvas coordinate to data point
+if (!it)
+axis.c2p = function (c) { return m + c / s; };
+else
+axis.c2p = function (c) { return it(m + c / s); };
+}
+function measureTickLabels(axis) {
+var opts = axis.options,
+ticks = axis.ticks || [],
+labelWidth = opts.labelWidth || 0,
+labelHeight = opts.labelHeight || 0,
+maxWidth = labelWidth || (axis.direction == "x" ? Math.floor(surface.width / (ticks.length || 1)) : null),
+legacyStyles = axis.direction + "Axis " + axis.direction + axis.n + "Axis",
+layer = "flot-" + axis.direction + "-axis flot-" + axis.direction + axis.n + "-axis " + legacyStyles,
+font = opts.font || "flot-tick-label tickLabel";
+for (var i = 0; i < ticks.length; ++i) {
+var t = ticks[i];
+if (!t.label)
+continue;
+var info = surface.getTextInfo(layer, t.label, font, null, maxWidth);
+labelWidth = Math.max(labelWidth, info.width);
+labelHeight = Math.max(labelHeight, info.height);
+}
+axis.labelWidth = opts.labelWidth || labelWidth;
+axis.labelHeight = opts.labelHeight || labelHeight;
+}
+function allocateAxisBoxFirstPhase(axis) {
+// find the bounding box of the axis by looking at label
+// widths/heights and ticks, make room by diminishing the
+// plotOffset; this first phase only looks at one
+// dimension per axis, the other dimension depends on the
+// other axes so will have to wait
+var lw = axis.labelWidth,
+lh = axis.labelHeight,
+pos = axis.options.position,
+isXAxis = axis.direction === "x",
+tickLength = axis.options.tickLength,
+axisMargin = options.grid.axisMargin,
+padding = options.grid.labelMargin,
+innermost = true,
+outermost = true,
+first = true,
+found = false;
+// Determine the axis's position in its direction and on its side
+$.each(isXAxis ? xaxes : yaxes, function(i, a) {
+if (a && a.reserveSpace) {
+if (a === axis) {
+found = true;
+} else if (a.options.position === pos) {
+if (found) {
+outermost = false;
+} else {
+innermost = false;
+}
+}
+if (!found) {
+first = false;
+}
+}
+});
+// The outermost axis on each side has no margin
+if (outermost) {
+axisMargin = 0;
+}
+// The ticks for the first axis in each direction stretch across
+if (tickLength == null) {
+tickLength = first ? "full" : 5;
+}
+if (!isNaN(+tickLength))
+padding += +tickLength;
+if (isXAxis) {
+lh += padding;
+if (pos == "bottom") {
+plotOffset.bottom += lh + axisMargin;
+axis.box = { top: surface.height - plotOffset.bottom, height: lh };
+}
+else {
+axis.box = { top: plotOffset.top + axisMargin, height: lh };
+plotOffset.top += lh + axisMargin;
+}
+}
+else {
+lw += padding;
+if (pos == "left") {
+axis.box = { left: plotOffset.left + axisMargin, width: lw };
+plotOffset.left += lw + axisMargin;
+}
+else {
+plotOffset.right += lw + axisMargin;
+axis.box = { left: surface.width - plotOffset.right, width: lw };
+}
+}
+// save for future reference
+axis.position = pos;
+axis.tickLength = tickLength;
+axis.box.padding = padding;
+axis.innermost = innermost;
+}
+function allocateAxisBoxSecondPhase(axis) {
+// now that all axis boxes have been placed in one
+// dimension, we can set the remaining dimension coordinates
+if (axis.direction == "x") {
+axis.box.left = plotOffset.left - axis.labelWidth / 2;
+axis.box.width = surface.width - plotOffset.left - plotOffset.right + axis.labelWidth;
+}
+else {
+axis.box.top = plotOffset.top - axis.labelHeight / 2;
+axis.box.height = surface.height - plotOffset.bottom - plotOffset.top + axis.labelHeight;
+}
+}
+function adjustLayoutForThingsStickingOut() {
+// possibly adjust plot offset to ensure everything stays
+// inside the canvas and isn't clipped off
+var minMargin = options.grid.minBorderMargin,
+axis, i;
+// check stuff from the plot (FIXME: this should just read
+// a value from the series, otherwise it's impossible to
+// customize)
+if (minMargin == null) {
+minMargin = 0;
+for (i = 0; i < series.length; ++i)
+minMargin = Math.max(minMargin, 2 * (series[i].points.radius + series[i].points.lineWidth/2));
+}
+var margins = {
+left: minMargin,
+right: minMargin,
+top: minMargin,
+bottom: minMargin
+};
+// check axis labels, note we don't check the actual
+// labels but instead use the overall width/height to not
+// jump as much around with replots
+$.each(allAxes(), function (_, axis) {
+if (axis.reserveSpace && axis.ticks && axis.ticks.length) {
+var lastTick = axis.ticks[axis.ticks.length - 1];
+if (axis.direction === "x") {
+margins.left = Math.max(margins.left, axis.labelWidth / 2);
+if (lastTick.v <= axis.max) {
+margins.right = Math.max(margins.right, axis.labelWidth / 2);
+}
+} else {
+margins.bottom = Math.max(margins.bottom, axis.labelHeight / 2);
+if (lastTick.v <= axis.max) {
+margins.top = Math.max(margins.top, axis.labelHeight / 2);
+}
+}
+}
+});
+plotOffset.left = Math.ceil(Math.max(margins.left, plotOffset.left));
+plotOffset.right = Math.ceil(Math.max(margins.right, plotOffset.right));
+plotOffset.top = Math.ceil(Math.max(margins.top, plotOffset.top));
+plotOffset.bottom = Math.ceil(Math.max(margins.bottom, plotOffset.bottom));
+}
+function setupGrid() {
+var i, axes = allAxes(), showGrid = options.grid.show;
+// Initialize the plot's offset from the edge of the canvas
+for (var a in plotOffset) {
+var margin = options.grid.margin || 0;
+plotOffset[a] = typeof margin == "number" ? margin : margin[a] || 0;
+}
+executeHooks(hooks.processOffset, [plotOffset]);
+// If the grid is visible, add its border width to the offset
+for (var a in plotOffset) {
+if(typeof(options.grid.borderWidth) == "object") {
+plotOffset[a] += showGrid ? options.grid.borderWidth[a] : 0;
+}
+else {
+plotOffset[a] += showGrid ? options.grid.borderWidth : 0;
+}
+}
+// init axes
+$.each(axes, function (_, axis) {
+axis.show = axis.options.show;
+if (axis.show == null)
+axis.show = axis.used; // by default an axis is visible if it's got data
+axis.reserveSpace = axis.show || axis.options.reserveSpace;
+setRange(axis);
+});
+if (showGrid) {
+var allocatedAxes = $.grep(axes, function (axis) { return axis.reserveSpace; });
+$.each(allocatedAxes, function (_, axis) {
+// make the ticks
+setupTickGeneration(axis);
+setTicks(axis);
+snapRangeToTicks(axis, axis.ticks);
+// find labelWidth/Height for axis
+measureTickLabels(axis);
+});
+// with all dimensions calculated, we can compute the
+// axis bounding boxes, start from the outside
+// (reverse order)
+for (i = allocatedAxes.length - 1; i >= 0; --i)
+allocateAxisBoxFirstPhase(allocatedAxes[i]);
+// make sure we've got enough space for things that
+// might stick out
+adjustLayoutForThingsStickingOut();
+$.each(allocatedAxes, function (_, axis) {
+allocateAxisBoxSecondPhase(axis);
+});
+}
+plotWidth = surface.width - plotOffset.left - plotOffset.right;
+plotHeight = surface.height - plotOffset.bottom - plotOffset.top;
+// now we got the proper plot dimensions, we can compute the scaling
+$.each(axes, function (_, axis) {
+setTransformationHelpers(axis);
+});
+if (showGrid) {
+drawAxisLabels();
+}
+insertLegend();
+}
+function setRange(axis) {
+var opts = axis.options,
+min = +(opts.min != null ? opts.min : axis.datamin),
+max = +(opts.max != null ? opts.max : axis.datamax),
+delta = max - min;
+if (delta == 0.0) {
+// degenerate case
+var widen = max == 0 ? 1 : 0.01;
+if (opts.min == null)
+min -= widen;
+// always widen max if we couldn't widen min to ensure we
+// don't fall into min == max which doesn't work
+if (opts.max == null || opts.min != null)
+max += widen;
+}
+else {
+// consider autoscaling
+var margin = opts.autoscaleMargin;
+if (margin != null) {
+if (opts.min == null) {
+min -= delta * margin;
+// make sure we don't go below zero if all values
+// are positive
+if (min < 0 && axis.datamin != null && axis.datamin >= 0)
+min = 0;
+}
+if (opts.max == null) {
+max += delta * margin;
+if (max > 0 && axis.datamax != null && axis.datamax <= 0)
+max = 0;
+}
+}
+}
+axis.min = min;
+axis.max = max;
+}
+function setupTickGeneration(axis) {
+var opts = axis.options;
+// estimate number of ticks
+var noTicks;
+if (typeof opts.ticks == "number" && opts.ticks > 0)
+noTicks = opts.ticks;
+else
+// heuristic based on the model a*sqrt(x) fitted to
+// some data points that seemed reasonable
+noTicks = 0.3 * Math.sqrt(axis.direction == "x" ? surface.width : surface.height);
+var delta = (axis.max - axis.min) / noTicks,
+dec = -Math.floor(Math.log(delta) / Math.LN10),
+maxDec = opts.tickDecimals;
+if (maxDec != null && dec > maxDec) {
+dec = maxDec;
+}
+var magn = Math.pow(10, -dec),
+norm = delta / magn, // norm is between 1.0 and 10.0
+size;
+if (norm < 1.5) {
+size = 1;
+} else if (norm < 3) {
+size = 2;
+// special case for 2.5, requires an extra decimal
+if (norm > 2.25 && (maxDec == null || dec + 1 <= maxDec)) {
+size = 2.5;
+++dec;
+}
+} else if (norm < 7.5) {
+size = 5;
+} else {
+size = 10;
+}
+size *= magn;
+if (opts.minTickSize != null && size < opts.minTickSize) {
+size = opts.minTickSize;
+}
+axis.delta = delta;
+axis.tickDecimals = Math.max(0, maxDec != null ? maxDec : dec);
+axis.tickSize = opts.tickSize || size;
+// Time mode was moved to a plug-in in 0.8, and since so many people use it
+// we'll add an especially friendly reminder to make sure they included it.
+if (opts.mode == "time" && !axis.tickGenerator) {
+throw new Error("Time mode requires the flot.time plugin.");
+}
+// Flot supports base-10 axes; any other mode else is handled by a plug-in,
+// like flot.time.js.
+if (!axis.tickGenerator) {
+axis.tickGenerator = function (axis) {
+var ticks = [],
+start = floorInBase(axis.min, axis.tickSize),
+i = 0,
+v = Number.NaN,
+prev;
+do {
+prev = v;
+v = start + i * axis.tickSize;
+ticks.push(v);
+++i;
+} while (v < axis.max && v != prev);
+return ticks;
+};
+				axis.tickFormatter = function (value, axis) {
+					var factor = axis.tickDecimals ? Math.pow(10, axis.tickDecimals) : 1;
+					var formatted = "" + Math.round(value * factor) / factor;
+					// If tickDecimals was specified, ensure that we have exactly that
+					// much precision; otherwise default to the value's own precision.
+					if (axis.tickDecimals != null) {
+						var decimal = formatted.indexOf(".");
+						var precision = decimal == -1 ? 0 : formatted.length - decimal - 1;
+						if (precision < axis.tickDecimals) {
+							return (precision ? formatted : formatted + ".") + ("" + factor).substr(1, axis.tickDecimals - precision);
+						}
+					}
+return formatted;
+};
+}
+if ($.isFunction(opts.tickFormatter))
+axis.tickFormatter = function (v, axis) { return "" + opts.tickFormatter(v, axis); };
+if (opts.alignTicksWithAxis != null) {
+var otherAxis = (axis.direction == "x" ? xaxes : yaxes)[opts.alignTicksWithAxis - 1];
+if (otherAxis && otherAxis.used && otherAxis != axis) {
+// consider snapping min/max to outermost nice ticks
+var niceTicks = axis.tickGenerator(axis);
+if (niceTicks.length > 0) {
+if (opts.min == null)
+axis.min = Math.min(axis.min, niceTicks[0]);
+if (opts.max == null && niceTicks.length > 1)
+axis.max = Math.max(axis.max, niceTicks[niceTicks.length - 1]);
+}
+axis.tickGenerator = function (axis) {
+// copy ticks, scaled to this axis
+var ticks = [], v, i;
+for (i = 0; i < otherAxis.ticks.length; ++i) {
+v = (otherAxis.ticks[i].v - otherAxis.min) / (otherAxis.max - otherAxis.min);
+v = axis.min + v * (axis.max - axis.min);
+ticks.push(v);
+}
+return ticks;
+};
+// we might need an extra decimal since forced
+// ticks don't necessarily fit naturally
+if (!axis.mode && opts.tickDecimals == null) {
+var extraDec = Math.max(0, -Math.floor(Math.log(axis.delta) / Math.LN10) + 1),
+ts = axis.tickGenerator(axis);
+// only proceed if the tick interval rounded
+// with an extra decimal doesn't give us a
+// zero at end
+if (!(ts.length > 1 && /\..*0$/.test((ts[1] - ts[0]).toFixed(extraDec))))
+axis.tickDecimals = extraDec;
+}
+}
+}
+}
+function setTicks(axis) {
+var oticks = axis.options.ticks, ticks = [];
+if (oticks == null || (typeof oticks == "number" && oticks > 0))
+ticks = axis.tickGenerator(axis);
+else if (oticks) {
+if ($.isFunction(oticks))
+// generate the ticks
+ticks = oticks(axis);
+else
+ticks = oticks;
+}
+// clean up/labelify the supplied ticks, copy them over
+var i, v;
+axis.ticks = [];
+for (i = 0; i < ticks.length; ++i) {
+var label = null;
+var t = ticks[i];
+if (typeof t == "object") {
+v = +t[0];
+if (t.length > 1)
+label = t[1];
+}
+else
+v = +t;
+if (label == null)
+label = axis.tickFormatter(v, axis);
+if (!isNaN(v))
+axis.ticks.push({ v: v, label: label });
+}
+}
+function snapRangeToTicks(axis, ticks) {
+if (axis.options.autoscaleMargin && ticks.length > 0) {
+// snap to ticks
+if (axis.options.min == null)
+axis.min = Math.min(axis.min, ticks[0].v);
+if (axis.options.max == null && ticks.length > 1)
+axis.max = Math.max(axis.max, ticks[ticks.length - 1].v);
+}
+}
+function draw() {
+surface.clear();
+executeHooks(hooks.drawBackground, [ctx]);
+var grid = options.grid;
+// draw background, if any
+if (grid.show && grid.backgroundColor)
+drawBackground();
+if (grid.show && !grid.aboveData) {
+drawGrid();
+}
+for (var i = 0; i < series.length; ++i) {
+executeHooks(hooks.drawSeries, [ctx, series[i]]);
+drawSeries(series[i]);
+}
+executeHooks(hooks.draw, [ctx]);
+if (grid.show && grid.aboveData) {
+drawGrid();
+}
+surface.render();
+// A draw implies that either the axes or data have changed, so we
+// should probably update the overlay highlights as well.
+triggerRedrawOverlay();
+}
+function extractRange(ranges, coord) {
+var axis, from, to, key, axes = allAxes();
+for (var i = 0; i < axes.length; ++i) {
+axis = axes[i];
+if (axis.direction == coord) {
+key = coord + axis.n + "axis";
+if (!ranges[key] && axis.n == 1)
+key = coord + "axis"; // support x1axis as xaxis
+if (ranges[key]) {
+from = ranges[key].from;
+to = ranges[key].to;
+break;
+}
+}
+}
+// backwards-compat stuff - to be removed in future
+if (!ranges[key]) {
+axis = coord == "x" ? xaxes[0] : yaxes[0];
+from = ranges[coord + "1"];
+to = ranges[coord + "2"];
+}
+// auto-reverse as an added bonus
+if (from != null && to != null && from > to) {
+var tmp = from;
+from = to;
+to = tmp;
+}
+return { from: from, to: to, axis: axis };
+}
+function drawBackground() {
+ctx.save();
+ctx.translate(plotOffset.left, plotOffset.top);
+ctx.fillStyle = getColorOrGradient(options.grid.backgroundColor, plotHeight, 0, "rgba(255, 255, 255, 0)");
+ctx.fillRect(0, 0, plotWidth, plotHeight);
+ctx.restore();
+}
+function drawGrid() {
+var i, axes, bw, bc;
+ctx.save();
+ctx.translate(plotOffset.left, plotOffset.top);
+// draw markings
+var markings = options.grid.markings;
+if (markings) {
+if ($.isFunction(markings)) {
+axes = plot.getAxes();
+// xmin etc. is backwards compatibility, to be
+// removed in the future
+axes.xmin = axes.xaxis.min;
+axes.xmax = axes.xaxis.max;
+axes.ymin = axes.yaxis.min;
+axes.ymax = axes.yaxis.max;
+markings = markings(axes);
+}
+for (i = 0; i < markings.length; ++i) {
+var m = markings[i],
+xrange = extractRange(m, "x"),
+yrange = extractRange(m, "y");
+// fill in missing
+if (xrange.from == null)
+xrange.from = xrange.axis.min;
+if (xrange.to == null)
+xrange.to = xrange.axis.max;
+if (yrange.from == null)
+yrange.from = yrange.axis.min;
+if (yrange.to == null)
+yrange.to = yrange.axis.max;
+// clip
+if (xrange.to < xrange.axis.min || xrange.from > xrange.axis.max ||
+yrange.to < yrange.axis.min || yrange.from > yrange.axis.max)
+continue;
+xrange.from = Math.max(xrange.from, xrange.axis.min);
+xrange.to = Math.min(xrange.to, xrange.axis.max);
+yrange.from = Math.max(yrange.from, yrange.axis.min);
+yrange.to = Math.min(yrange.to, yrange.axis.max);
+var xequal = xrange.from === xrange.to,
+yequal = yrange.from === yrange.to;
+if (xequal && yequal) {
+continue;
+}
+// then draw
+xrange.from = Math.floor(xrange.axis.p2c(xrange.from));
+xrange.to = Math.floor(xrange.axis.p2c(xrange.to));
+yrange.from = Math.floor(yrange.axis.p2c(yrange.from));
+yrange.to = Math.floor(yrange.axis.p2c(yrange.to));
+if (xequal || yequal) {
+var lineWidth = m.lineWidth || options.grid.markingsLineWidth,
+subPixel = lineWidth % 2 ? 0.5 : 0;
+ctx.beginPath();
+ctx.strokeStyle = m.color || options.grid.markingsColor;
+ctx.lineWidth = lineWidth;
+if (xequal) {
+ctx.moveTo(xrange.to + subPixel, yrange.from);
+ctx.lineTo(xrange.to + subPixel, yrange.to);
+} else {
+ctx.moveTo(xrange.from, yrange.to + subPixel);
+ctx.lineTo(xrange.to, yrange.to + subPixel);
+}
+ctx.stroke();
+} else {
+ctx.fillStyle = m.color || options.grid.markingsColor;
+ctx.fillRect(xrange.from, yrange.to,
+xrange.to - xrange.from,
+yrange.from - yrange.to);
+}
+}
+}
+// draw the ticks
+axes = allAxes();
+bw = options.grid.borderWidth;
+for (var j = 0; j < axes.length; ++j) {
+var axis = axes[j], box = axis.box,
+t = axis.tickLength, x, y, xoff, yoff;
+if (!axis.show || axis.ticks.length == 0)
+continue;
+ctx.lineWidth = 1;
+// find the edges
+if (axis.direction == "x") {
+x = 0;
+if (t == "full")
+y = (axis.position == "top" ? 0 : plotHeight);
+else
+y = box.top - plotOffset.top + (axis.position == "top" ? box.height : 0);
+}
+else {
+y = 0;
+if (t == "full")
+x = (axis.position == "left" ? 0 : plotWidth);
+else
+x = box.left - plotOffset.left + (axis.position == "left" ? box.width : 0);
+}
+// draw tick bar
+if (!axis.innermost) {
+ctx.strokeStyle = axis.options.color;
+ctx.beginPath();
+xoff = yoff = 0;
+if (axis.direction == "x")
+xoff = plotWidth + 1;
+else
+yoff = plotHeight + 1;
+if (ctx.lineWidth == 1) {
+if (axis.direction == "x") {
+y = Math.floor(y) + 0.5;
+} else {
+x = Math.floor(x) + 0.5;
+}
+}
+ctx.moveTo(x, y);
+ctx.lineTo(x + xoff, y + yoff);
+ctx.stroke();
+}
+// draw ticks
+ctx.strokeStyle = axis.options.tickColor;
+ctx.beginPath();
+for (i = 0; i < axis.ticks.length; ++i) {
+var v = axis.ticks[i].v;
+xoff = yoff = 0;
+if (isNaN(v) || v < axis.min || v > axis.max
+// skip those lying on the axes if we got a border
+|| (t == "full"
+&& ((typeof bw == "object" && bw[axis.position] > 0) || bw > 0)
+&& (v == axis.min || v == axis.max)))
+continue;
+if (axis.direction == "x") {
+x = axis.p2c(v);
+yoff = t == "full" ? -plotHeight : t;
+if (axis.position == "top")
+yoff = -yoff;
+}
+else {
+y = axis.p2c(v);
+xoff = t == "full" ? -plotWidth : t;
+if (axis.position == "left")
+xoff = -xoff;
+}
+if (ctx.lineWidth == 1) {
+if (axis.direction == "x")
+x = Math.floor(x) + 0.5;
+else
+y = Math.floor(y) + 0.5;
+}
+ctx.moveTo(x, y);
+ctx.lineTo(x + xoff, y + yoff);
+}
+ctx.stroke();
+}
+// draw border
+if (bw) {
+// If either borderWidth or borderColor is an object, then draw the border
+// line by line instead of as one rectangle
+bc = options.grid.borderColor;
+if(typeof bw == "object" || typeof bc == "object") {
+if (typeof bw !== "object") {
+bw = {top: bw, right: bw, bottom: bw, left: bw};
+}
+if (typeof bc !== "object") {
+bc = {top: bc, right: bc, bottom: bc, left: bc};
+}
+if (bw.top > 0) {
+ctx.strokeStyle = bc.top;
+ctx.lineWidth = bw.top;
+ctx.beginPath();
+ctx.moveTo(0 - bw.left, 0 - bw.top/2);
+ctx.lineTo(plotWidth, 0 - bw.top/2);
+ctx.stroke();
+}
+if (bw.right > 0) {
+ctx.strokeStyle = bc.right;
+ctx.lineWidth = bw.right;
+ctx.beginPath();
+ctx.moveTo(plotWidth + bw.right / 2, 0 - bw.top);
+ctx.lineTo(plotWidth + bw.right / 2, plotHeight);
+ctx.stroke();
+}
+if (bw.bottom > 0) {
+ctx.strokeStyle = bc.bottom;
+ctx.lineWidth = bw.bottom;
+ctx.beginPath();
+ctx.moveTo(plotWidth + bw.right, plotHeight + bw.bottom / 2);
+ctx.lineTo(0, plotHeight + bw.bottom / 2);
+ctx.stroke();
+}
+if (bw.left > 0) {
+ctx.strokeStyle = bc.left;
+ctx.lineWidth = bw.left;
+ctx.beginPath();
+ctx.moveTo(0 - bw.left/2, plotHeight + bw.bottom);
+ctx.lineTo(0- bw.left/2, 0);
+ctx.stroke();
+}
+}
+else {
+ctx.lineWidth = bw;
+ctx.strokeStyle = options.grid.borderColor;
+ctx.strokeRect(-bw/2, -bw/2, plotWidth + bw, plotHeight + bw);
+}
+}
+ctx.restore();
+}
+function drawAxisLabels() {
+$.each(allAxes(), function (_, axis) {
+var box = axis.box,
+legacyStyles = axis.direction + "Axis " + axis.direction + axis.n + "Axis",
+layer = "flot-" + axis.direction + "-axis flot-" + axis.direction + axis.n + "-axis " + legacyStyles,
+font = axis.options.font || "flot-tick-label tickLabel",
+tick, x, y, halign, valign;
+// Remove text before checking for axis.show and ticks.length;
+// otherwise plugins, like flot-tickrotor, that draw their own
+// tick labels will end up with both theirs and the defaults.
+surface.removeText(layer);
+if (!axis.show || axis.ticks.length == 0)
+return;
+for (var i = 0; i < axis.ticks.length; ++i) {
+tick = axis.ticks[i];
+if (!tick.label || tick.v < axis.min || tick.v > axis.max)
+continue;
+if (axis.direction == "x") {
+halign = "center";
+x = plotOffset.left + axis.p2c(tick.v);
+if (axis.position == "bottom") {
+y = box.top + box.padding;
+} else {
+y = box.top + box.height - box.padding;
+valign = "bottom";
+}
+} else {
+valign = "middle";
+y = plotOffset.top + axis.p2c(tick.v);
+if (axis.position == "left") {
+x = box.left + box.width - box.padding;
+halign = "right";
+} else {
+x = box.left + box.padding;
+}
+}
+surface.addText(layer, x, y, tick.label, font, null, null, halign, valign);
+}
+});
+}
+function drawSeries(series) {
+if (series.lines.show)
+drawSeriesLines(series);
+if (series.bars.show)
+drawSeriesBars(series);
+if (series.points.show)
+drawSeriesPoints(series);
+}
+function drawSeriesLines(series) {
+function plotLine(datapoints, xoffset, yoffset, axisx, axisy) {
+var points = datapoints.points,
+ps = datapoints.pointsize,
+prevx = null, prevy = null;
+ctx.beginPath();
+for (var i = ps; i < points.length; i += ps) {
+var x1 = points[i - ps], y1 = points[i - ps + 1],
+x2 = points[i], y2 = points[i + 1];
+if (x1 == null || x2 == null)
+continue;
+// clip with ymin
+if (y1 <= y2 && y1 < axisy.min) {
+if (y2 < axisy.min)
+continue;   // line segment is outside
+// compute new intersection point
+x1 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1;
+y1 = axisy.min;
+}
+else if (y2 <= y1 && y2 < axisy.min) {
+if (y1 < axisy.min)
+continue;
+x2 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1;
+y2 = axisy.min;
+}
+// clip with ymax
+if (y1 >= y2 && y1 > axisy.max) {
+if (y2 > axisy.max)
+continue;
+x1 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1;
+y1 = axisy.max;
+}
+else if (y2 >= y1 && y2 > axisy.max) {
+if (y1 > axisy.max)
+continue;
+x2 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1;
+y2 = axisy.max;
+}
+// clip with xmin
+if (x1 <= x2 && x1 < axisx.min) {
+if (x2 < axisx.min)
+continue;
+y1 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1;
+x1 = axisx.min;
+}
+else if (x2 <= x1 && x2 < axisx.min) {
+if (x1 < axisx.min)
+continue;
+y2 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1;
+x2 = axisx.min;
+}
+// clip with xmax
+if (x1 >= x2 && x1 > axisx.max) {
+if (x2 > axisx.max)
+continue;
+y1 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1;
+x1 = axisx.max;
+}
+else if (x2 >= x1 && x2 > axisx.max) {
+if (x1 > axisx.max)
+continue;
+y2 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1;
+x2 = axisx.max;
+}
+if (x1 != prevx || y1 != prevy)
+ctx.moveTo(axisx.p2c(x1) + xoffset, axisy.p2c(y1) + yoffset);
+prevx = x2;
+prevy = y2;
+ctx.lineTo(axisx.p2c(x2) + xoffset, axisy.p2c(y2) + yoffset);
+}
+ctx.stroke();
+}
+function plotLineArea(datapoints, axisx, axisy) {
+var points = datapoints.points,
+ps = datapoints.pointsize,
+bottom = Math.min(Math.max(0, axisy.min), axisy.max),
+i = 0, top, areaOpen = false,
+ypos = 1, segmentStart = 0, segmentEnd = 0;
+// we process each segment in two turns, first forward
+// direction to sketch out top, then once we hit the
+// end we go backwards to sketch the bottom
+while (true) {
+if (ps > 0 && i > points.length + ps)
+break;
+i += ps; // ps is negative if going backwards
+var x1 = points[i - ps],
+y1 = points[i - ps + ypos],
+x2 = points[i], y2 = points[i + ypos];
+if (areaOpen) {
+if (ps > 0 && x1 != null && x2 == null) {
+// at turning point
+segmentEnd = i;
+ps = -ps;
+ypos = 2;
+continue;
+}
+if (ps < 0 && i == segmentStart + ps) {
+// done with the reverse sweep
+ctx.fill();
+areaOpen = false;
+ps = -ps;
+ypos = 1;
+i = segmentStart = segmentEnd + ps;
+continue;
+}
+}
+if (x1 == null || x2 == null)
+continue;
+// clip x values
+// clip with xmin
+if (x1 <= x2 && x1 < axisx.min) {
+if (x2 < axisx.min)
+continue;
+y1 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1;
+x1 = axisx.min;
+}
+else if (x2 <= x1 && x2 < axisx.min) {
+if (x1 < axisx.min)
+continue;
+y2 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1;
+x2 = axisx.min;
+}
+// clip with xmax
+if (x1 >= x2 && x1 > axisx.max) {
+if (x2 > axisx.max)
+continue;
+y1 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1;
+x1 = axisx.max;
+}
+else if (x2 >= x1 && x2 > axisx.max) {
+if (x1 > axisx.max)
+continue;
+y2 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1;
+x2 = axisx.max;
+}
+if (!areaOpen) {
+// open area
+ctx.beginPath();
+ctx.moveTo(axisx.p2c(x1), axisy.p2c(bottom));
+areaOpen = true;
+}
+// now first check the case where both is outside
+if (y1 >= axisy.max && y2 >= axisy.max) {
+ctx.lineTo(axisx.p2c(x1), axisy.p2c(axisy.max));
+ctx.lineTo(axisx.p2c(x2), axisy.p2c(axisy.max));
+continue;
+}
+else if (y1 <= axisy.min && y2 <= axisy.min) {
+ctx.lineTo(axisx.p2c(x1), axisy.p2c(axisy.min));
+ctx.lineTo(axisx.p2c(x2), axisy.p2c(axisy.min));
+continue;
+}
+// else it's a bit more complicated, there might
+// be a flat maxed out rectangle first, then a
+// triangular cutout or reverse; to find these
+// keep track of the current x values
+var x1old = x1, x2old = x2;
+// clip the y values, without shortcutting, we
+// go through all cases in turn
+// clip with ymin
+if (y1 <= y2 && y1 < axisy.min && y2 >= axisy.min) {
+x1 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1;
+y1 = axisy.min;
+}
+else if (y2 <= y1 && y2 < axisy.min && y1 >= axisy.min) {
+x2 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1;
+y2 = axisy.min;
+}
+// clip with ymax
+if (y1 >= y2 && y1 > axisy.max && y2 <= axisy.max) {
+x1 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1;
+y1 = axisy.max;
+}
+else if (y2 >= y1 && y2 > axisy.max && y1 <= axisy.max) {
+x2 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1;
+y2 = axisy.max;
+}
+// if the x value was changed we got a rectangle
+// to fill
+if (x1 != x1old) {
+ctx.lineTo(axisx.p2c(x1old), axisy.p2c(y1));
+// it goes to (x1, y1), but we fill that below
+}
+// fill triangular section, this sometimes result
+// in redundant points if (x1, y1) hasn't changed
+// from previous line to, but we just ignore that
+ctx.lineTo(axisx.p2c(x1), axisy.p2c(y1));
+ctx.lineTo(axisx.p2c(x2), axisy.p2c(y2));
+// fill the other rectangle if it's there
+if (x2 != x2old) {
+ctx.lineTo(axisx.p2c(x2), axisy.p2c(y2));
+ctx.lineTo(axisx.p2c(x2old), axisy.p2c(y2));
+}
+}
+}
+ctx.save();
+ctx.translate(plotOffset.left, plotOffset.top);
+ctx.lineJoin = "round";
+var lw = series.lines.lineWidth,
+sw = series.shadowSize;
+// FIXME: consider another form of shadow when filling is turned on
+if (lw > 0 && sw > 0) {
+// draw shadow as a thick and thin line with transparency
+ctx.lineWidth = sw;
+ctx.strokeStyle = "rgba(0,0,0,0.1)";
+// position shadow at angle from the mid of line
+var angle = Math.PI/18;
+plotLine(series.datapoints, Math.sin(angle) * (lw/2 + sw/2), Math.cos(angle) * (lw/2 + sw/2), series.xaxis, series.yaxis);
+ctx.lineWidth = sw/2;
+plotLine(series.datapoints, Math.sin(angle) * (lw/2 + sw/4), Math.cos(angle) * (lw/2 + sw/4), series.xaxis, series.yaxis);
+}
+ctx.lineWidth = lw;
+ctx.strokeStyle = series.color;
+var fillStyle = getFillStyle(series.lines, series.color, 0, plotHeight);
+if (fillStyle) {
+ctx.fillStyle = fillStyle;
+plotLineArea(series.datapoints, series.xaxis, series.yaxis);
+}
+if (lw > 0)
+plotLine(series.datapoints, 0, 0, series.xaxis, series.yaxis);
+ctx.restore();
+}
+function drawSeriesPoints(series) {
+function plotPoints(datapoints, radius, fillStyle, offset, shadow, axisx, axisy, symbol) {
+var points = datapoints.points, ps = datapoints.pointsize;
+for (var i = 0; i < points.length; i += ps) {
+var x = points[i], y = points[i + 1];
+if (x == null || x < axisx.min || x > axisx.max || y < axisy.min || y > axisy.max)
+continue;
+ctx.beginPath();
+x = axisx.p2c(x);
+y = axisy.p2c(y) + offset;
+if (symbol == "circle")
+ctx.arc(x, y, radius, 0, shadow ? Math.PI : Math.PI * 2, false);
+else
+symbol(ctx, x, y, radius, shadow);
+ctx.closePath();
+if (fillStyle) {
+ctx.fillStyle = fillStyle;
+ctx.fill();
+}
+ctx.stroke();
+}
+}
+ctx.save();
+ctx.translate(plotOffset.left, plotOffset.top);
+var lw = series.points.lineWidth,
+sw = series.shadowSize,
+radius = series.points.radius,
+symbol = series.points.symbol;
+// If the user sets the line width to 0, we change it to a very
+// small value. A line width of 0 seems to force the default of 1.
+// Doing the conditional here allows the shadow setting to still be
+// optional even with a lineWidth of 0.
+if( lw == 0 )
+lw = 0.0001;
+if (lw > 0 && sw > 0) {
+// draw shadow in two steps
+var w = sw / 2;
+ctx.lineWidth = w;
+ctx.strokeStyle = "rgba(0,0,0,0.1)";
+plotPoints(series.datapoints, radius, null, w + w/2, true,
+series.xaxis, series.yaxis, symbol);
+ctx.strokeStyle = "rgba(0,0,0,0.2)";
+plotPoints(series.datapoints, radius, null, w/2, true,
+series.xaxis, series.yaxis, symbol);
+}
+ctx.lineWidth = lw;
+ctx.strokeStyle = series.color;
+plotPoints(series.datapoints, radius,
+getFillStyle(series.points, series.color), 0, false,
+series.xaxis, series.yaxis, symbol);
+ctx.restore();
+}
+function drawBar(x, y, b, barLeft, barRight, fillStyleCallback, axisx, axisy, c, horizontal, lineWidth) {
+var left, right, bottom, top,
+drawLeft, drawRight, drawTop, drawBottom,
+tmp;
+// in horizontal mode, we start the bar from the left
+// instead of from the bottom so it appears to be
+// horizontal rather than vertical
+if (horizontal) {
+drawBottom = drawRight = drawTop = true;
+drawLeft = false;
+left = b;
+right = x;
+top = y + barLeft;
+bottom = y + barRight;
+// account for negative bars
+if (right < left) {
+tmp = right;
+right = left;
+left = tmp;
+drawLeft = true;
+drawRight = false;
+}
+}
+else {
+drawLeft = drawRight = drawTop = true;
+drawBottom = false;
+left = x + barLeft;
+right = x + barRight;
+bottom = b;
+top = y;
+// account for negative bars
+if (top < bottom) {
+tmp = top;
+top = bottom;
+bottom = tmp;
+drawBottom = true;
+drawTop = false;
+}
+}
+// clip
+if (right < axisx.min || left > axisx.max ||
+top < axisy.min || bottom > axisy.max)
+return;
+if (left < axisx.min) {
+left = axisx.min;
+drawLeft = false;
+}
+if (right > axisx.max) {
+right = axisx.max;
+drawRight = false;
+}
+if (bottom < axisy.min) {
+bottom = axisy.min;
+drawBottom = false;
+}
+if (top > axisy.max) {
+top = axisy.max;
+drawTop = false;
+}
+left = axisx.p2c(left);
+bottom = axisy.p2c(bottom);
+right = axisx.p2c(right);
+top = axisy.p2c(top);
+// fill the bar
+if (fillStyleCallback) {
+c.fillStyle = fillStyleCallback(bottom, top);
+c.fillRect(left, top, right - left, bottom - top)
+}
+// draw outline
+if (lineWidth > 0 && (drawLeft || drawRight || drawTop || drawBottom)) {
+c.beginPath();
+// FIXME: inline moveTo is buggy with excanvas
+c.moveTo(left, bottom);
+if (drawLeft)
+c.lineTo(left, top);
+else
+c.moveTo(left, top);
+if (drawTop)
+c.lineTo(right, top);
+else
+c.moveTo(right, top);
+if (drawRight)
+c.lineTo(right, bottom);
+else
+c.moveTo(right, bottom);
+if (drawBottom)
+c.lineTo(left, bottom);
+else
+c.moveTo(left, bottom);
+c.stroke();
+}
+}
+function drawSeriesBars(series) {
+function plotBars(datapoints, barLeft, barRight, fillStyleCallback, axisx, axisy) {
+var points = datapoints.points, ps = datapoints.pointsize;
+for (var i = 0; i < points.length; i += ps) {
+if (points[i] == null)
+continue;
+drawBar(points[i], points[i + 1], points[i + 2], barLeft, barRight, fillStyleCallback, axisx, axisy, ctx, series.bars.horizontal, series.bars.lineWidth);
+}
+}
+ctx.save();
+ctx.translate(plotOffset.left, plotOffset.top);
+// FIXME: figure out a way to add shadows (for instance along the right edge)
+ctx.lineWidth = series.bars.lineWidth;
+ctx.strokeStyle = series.color;
+var barLeft;
+switch (series.bars.align) {
+case "left":
+barLeft = 0;
+break;
+case "right":
+barLeft = -series.bars.barWidth;
+break;
+default:
+barLeft = -series.bars.barWidth / 2;
+}
+var fillStyleCallback = series.bars.fill ? function (bottom, top) { return getFillStyle(series.bars, series.color, bottom, top); } : null;
+plotBars(series.datapoints, barLeft, barLeft + series.bars.barWidth, fillStyleCallback, series.xaxis, series.yaxis);
+ctx.restore();
+}
+function getFillStyle(filloptions, seriesColor, bottom, top) {
+var fill = filloptions.fill;
+if (!fill)
+return null;
+if (filloptions.fillColor)
+return getColorOrGradient(filloptions.fillColor, bottom, top, seriesColor);
+var c = $.color.parse(seriesColor);
+c.a = typeof fill == "number" ? fill : 0.4;
+c.normalize();
+return c.toString();
+}
+function insertLegend() {
+if (options.legend.container != null) {
+$(options.legend.container).html("");
+} else {
+placeholder.find(".legend").remove();
+}
+if (!options.legend.show) {
+return;
+}
+var fragments = [], entries = [], rowStarted = false,
+lf = options.legend.labelFormatter, s, label;
+// Build a list of legend entries, with each having a label and a color
+for (var i = 0; i < series.length; ++i) {
+s = series[i];
+if (s.label) {
+label = lf ? lf(s.label, s) : s.label;
+if (label) {
+entries.push({
+label: label,
+color: s.color
+});
+}
+}
+}
+// Sort the legend using either the default or a custom comparator
+if (options.legend.sorted) {
+if ($.isFunction(options.legend.sorted)) {
+entries.sort(options.legend.sorted);
+} else if (options.legend.sorted == "reverse") {
+	entries.reverse();
+} else {
+var ascending = options.legend.sorted != "descending";
+entries.sort(function(a, b) {
+return a.label == b.label ? 0 : (
+(a.label < b.label) != ascending ? 1 : -1   // Logical XOR
+);
+});
+}
+}
+// Generate markup for the list of entries, in their final order
+for (var i = 0; i < entries.length; ++i) {
+var entry = entries[i];
+if (i % options.legend.noColumns == 0) {
+if (rowStarted)
+fragments.push('</tr>');
+fragments.push('<tr>');
+rowStarted = true;
+}
+fragments.push(
+'<td class="legendColorBox"><div style="border:1px solid ' + options.legend.labelBoxBorderColor + ';padding:1px"><div style="width:4px;height:0;border:5px solid ' + entry.color + ';overflow:hidden"></div></div></td>' +
+'<td class="legendLabel">' + entry.label + '</td>'
+);
+}
+if (rowStarted)
+fragments.push('</tr>');
+if (fragments.length == 0)
+return;
+var table = '<table style="font-size:smaller;color:' + options.grid.color + '">' + fragments.join("") + '</table>';
+if (options.legend.container != null)
+$(options.legend.container).html(table);
+else {
+var pos = "",
+p = options.legend.position,
+m = options.legend.margin;
+if (m[0] == null)
+m = [m, m];
+if (p.charAt(0) == "n")
+pos += 'top:' + (m[1] + plotOffset.top) + 'px;';
+else if (p.charAt(0) == "s")
+pos += 'bottom:' + (m[1] + plotOffset.bottom) + 'px;';
+if (p.charAt(1) == "e")
+pos += 'right:' + (m[0] + plotOffset.right) + 'px;';
+else if (p.charAt(1) == "w")
+pos += 'left:' + (m[0] + plotOffset.left) + 'px;';
+var legend = $('<div class="legend">' + table.replace('style="', 'style="position:absolute;' + pos +';') + '</div>').appendTo(placeholder);
+if (options.legend.backgroundOpacity != 0.0) {
+// put in the transparent background
+// separately to avoid blended labels and
+// label boxes
+var c = options.legend.backgroundColor;
+if (c == null) {
+c = options.grid.backgroundColor;
+if (c && typeof c == "string")
+c = $.color.parse(c);
+else
+c = $.color.extract(legend, 'background-color');
+c.a = 1;
+c = c.toString();
+}
+var div = legend.children();
+$('<div style="position:absolute;width:' + div.width() + 'px;height:' + div.height() + 'px;' + pos +'background-color:' + c + ';"> </div>').prependTo(legend).css('opacity', options.legend.backgroundOpacity);
+}
+}
+}
+// interactive features
+var highlights = [],
+redrawTimeout = null;
+// returns the data item the mouse is over, or null if none is found
+function findNearbyItem(mouseX, mouseY, seriesFilter) {
+var maxDistance = options.grid.mouseActiveRadius,
+smallestDistance = maxDistance * maxDistance + 1,
+item = null, foundPoint = false, i, j, ps;
+for (i = series.length - 1; i >= 0; --i) {
+if (!seriesFilter(series[i]))
+continue;
+var s = series[i],
+axisx = s.xaxis,
+axisy = s.yaxis,
+points = s.datapoints.points,
+mx = axisx.c2p(mouseX), // precompute some stuff to make the loop faster
+my = axisy.c2p(mouseY),
+maxx = maxDistance / axisx.scale,
+maxy = maxDistance / axisy.scale;
+ps = s.datapoints.pointsize;
+// with inverse transforms, we can't use the maxx/maxy
+// optimization, sadly
+if (axisx.options.inverseTransform)
+maxx = Number.MAX_VALUE;
+if (axisy.options.inverseTransform)
+maxy = Number.MAX_VALUE;
+if (s.lines.show || s.points.show) {
+for (j = 0; j < points.length; j += ps) {
+var x = points[j], y = points[j + 1];
+if (x == null)
+continue;
+// For points and lines, the cursor must be within a
+// certain distance to the data point
+if (x - mx > maxx || x - mx < -maxx ||
+y - my > maxy || y - my < -maxy)
+continue;
+// We have to calculate distances in pixels, not in
+// data units, because the scales of the axes may be different
+var dx = Math.abs(axisx.p2c(x) - mouseX),
+dy = Math.abs(axisy.p2c(y) - mouseY),
+dist = dx * dx + dy * dy; // we save the sqrt
+// use <= to ensure last point takes precedence
+// (last generally means on top of)
+if (dist < smallestDistance) {
+smallestDistance = dist;
+item = [i, j / ps];
+}
+}
+}
+if (s.bars.show && !item) { // no other point can be nearby
+var barLeft, barRight;
+switch (s.bars.align) {
+case "left":
+barLeft = 0;
+break;
+case "right":
+barLeft = -s.bars.barWidth;
+break;
+default:
+barLeft = -s.bars.barWidth / 2;
+}
+barRight = barLeft + s.bars.barWidth;
+for (j = 0; j < points.length; j += ps) {
+var x = points[j], y = points[j + 1], b = points[j + 2];
+if (x == null)
+continue;
+// for a bar graph, the cursor must be inside the bar
+if (series[i].bars.horizontal ?
+(mx <= Math.max(b, x) && mx >= Math.min(b, x) &&
+my >= y + barLeft && my <= y + barRight) :
+(mx >= x + barLeft && mx <= x + barRight &&
+my >= Math.min(b, y) && my <= Math.max(b, y)))
+item = [i, j / ps];
+}
+}
+}
+if (item) {
+i = item[0];
+j = item[1];
+ps = series[i].datapoints.pointsize;
+return { datapoint: series[i].datapoints.points.slice(j * ps, (j + 1) * ps),
+dataIndex: j,
+series: series[i],
+seriesIndex: i };
+}
+return null;
+}
+function onMouseMove(e) {
+if (options.grid.hoverable)
+triggerClickHoverEvent("plothover", e,
+function (s) { return s["hoverable"] != false; });
+}
+function onMouseLeave(e) {
+if (options.grid.hoverable)
+triggerClickHoverEvent("plothover", e,
+function (s) { return false; });
+}
+function onClick(e) {
+triggerClickHoverEvent("plotclick", e,
+function (s) { return s["clickable"] != false; });
+}
+// trigger click or hover event (they send the same parameters
+// so we share their code)
+function triggerClickHoverEvent(eventname, event, seriesFilter) {
+var offset = eventHolder.offset(),
+canvasX = event.pageX - offset.left - plotOffset.left,
+canvasY = event.pageY - offset.top - plotOffset.top,
+pos = canvasToAxisCoords({ left: canvasX, top: canvasY });
+pos.pageX = event.pageX;
+pos.pageY = event.pageY;
+var item = findNearbyItem(canvasX, canvasY, seriesFilter);
+if (item) {
+// fill in mouse pos for any listeners out there
+item.pageX = parseInt(item.series.xaxis.p2c(item.datapoint[0]) + offset.left + plotOffset.left, 10);
+item.pageY = parseInt(item.series.yaxis.p2c(item.datapoint[1]) + offset.top + plotOffset.top, 10);
+}
+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 &&
+h.point[0] == item.datapoint[0] &&
+h.point[1] == item.datapoint[1]))
+unhighlight(h.series, h.point);
+}
+if (item)
+highlight(item.series, item.datapoint, eventname);
+}
+placeholder.trigger(eventname, [ pos, item ]);
+}
+function triggerRedrawOverlay() {
+var t = options.interaction.redrawOverlayInterval;
+if (t == -1) {      // skip event queue
+drawOverlay();
+return;
+}
+if (!redrawTimeout)
+redrawTimeout = setTimeout(drawOverlay, t);
+}
+function drawOverlay() {
+redrawTimeout = null;
+// draw highlights
+octx.save();
+overlay.clear();
+octx.translate(plotOffset.left, plotOffset.top);
+var i, hi;
+for (i = 0; i < highlights.length; ++i) {
+hi = highlights[i];
+if (hi.series.bars.show)
+drawBarHighlight(hi.series, hi.point);
+else
+drawPointHighlight(hi.series, hi.point);
+}
+octx.restore();
+executeHooks(hooks.drawOverlay, [octx]);
+}
+function highlight(s, point, auto) {
+if (typeof s == "number")
+s = series[s];
+if (typeof point == "number") {
+var ps = s.datapoints.pointsize;
+point = s.datapoints.points.slice(ps * point, ps * (point + 1));
+}
+var i = indexOfHighlight(s, point);
+if (i == -1) {
+highlights.push({ series: s, point: point, auto: auto });
+triggerRedrawOverlay();
+}
+else if (!auto)
+highlights[i].auto = false;
+}
+function unhighlight(s, point) {
+if (s == null && point == null) {
+highlights = [];
+triggerRedrawOverlay();
+return;
+}
+if (typeof s == "number")
+s = series[s];
+if (typeof point == "number") {
+var ps = s.datapoints.pointsize;
+point = s.datapoints.points.slice(ps * point, ps * (point + 1));
+}
+var i = indexOfHighlight(s, point);
+if (i != -1) {
+highlights.splice(i, 1);
+triggerRedrawOverlay();
+}
+}
+function indexOfHighlight(s, p) {
+for (var i = 0; i < highlights.length; ++i) {
+var h = highlights[i];
+if (h.series == s && h.point[0] == p[0]
+&& h.point[1] == p[1])
+return i;
+}
+return -1;
+}
+function drawPointHighlight(series, point) {
+var x = point[0], y = point[1],
+axisx = series.xaxis, axisy = series.yaxis,
+highlightColor = (typeof series.highlightColor === "string") ? series.highlightColor : $.color.parse(series.color).scale('a', 0.5).toString();
+if (x < axisx.min || x > axisx.max || y < axisy.min || y > axisy.max)
+return;
+var pointRadius = series.points.radius + series.points.lineWidth / 2;
+octx.lineWidth = pointRadius;
+octx.strokeStyle = highlightColor;
+var radius = 1.5 * pointRadius;
+x = axisx.p2c(x);
+y = axisy.p2c(y);
+octx.beginPath();
+if (series.points.symbol == "circle")
+octx.arc(x, y, radius, 0, 2 * Math.PI, false);
+else
+series.points.symbol(octx, x, y, radius, false);
+octx.closePath();
+octx.stroke();
+}
+function drawBarHighlight(series, point) {
+var highlightColor = (typeof series.highlightColor === "string") ? series.highlightColor : $.color.parse(series.color).scale('a', 0.5).toString(),
+fillStyle = highlightColor,
+barLeft;
+switch (series.bars.align) {
+case "left":
+barLeft = 0;
+break;
+case "right":
+barLeft = -series.bars.barWidth;
+break;
+default:
+barLeft = -series.bars.barWidth / 2;
+}
+octx.lineWidth = series.bars.lineWidth;
+octx.strokeStyle = highlightColor;
+drawBar(point[0], point[1], point[2] || 0, barLeft, barLeft + series.bars.barWidth,
+function () { return fillStyle; }, series.xaxis, series.yaxis, octx, series.bars.horizontal, series.bars.lineWidth);
+}
+function getColorOrGradient(spec, bottom, top, defaultColor) {
+if (typeof spec == "string")
+return spec;
+else {
+// assume this is a gradient spec; IE currently only
+// supports a simple vertical gradient properly, so that's
+// what we support too
+var gradient = ctx.createLinearGradient(0, top, 0, bottom);
+for (var i = 0, l = spec.colors.length; i < l; ++i) {
+var c = spec.colors[i];
+if (typeof c != "string") {
+var co = $.color.parse(defaultColor);
+if (c.brightness != null)
+co = co.scale('rgb', c.brightness);
+if (c.opacity != null)
+co.a *= c.opacity;
+c = co.toString();
+}
+gradient.addColorStop(i / (l - 1), c);
+}
+return gradient;
+}
+}
+}
+// Add the plot function to the top level of the jQuery object
+$.plot = function(placeholder, data, options) {
+//var t0 = new Date();
+var plot = new Plot($(placeholder), data, options, $.plot.plugins);
+//(window.console ? console.log : alert)("time used (msecs): " + ((new Date()).getTime() - t0.getTime()));
+return plot;
+};
+$.plot.version = "0.8.3-alpha";
+$.plot.plugins = [];
+// Also add the plot function as a chainable property
+$.fn.plot = function(data, options) {
+return this.each(function() {
+$.plot(this, data, options);
+});
+};
+// round to nearby lower multiple of base
+function floorInBase(n, base) {
+return base * Math.floor(n / base);
+}
+})(jQuery);