WebSVN - Integrator Subversion - Blame - Rev 1 - /DOCUMENTOS E ANALISE/telas/assets/global/plugins/flot/jquery.flot.js

Rev	Author	Line No.	Line
1	espaco	1	/* Javascript plotting library for jQuery, version 0.8.3.
		2
		3	Copyright (c) 2007-2014 IOLA and Ole Laursen.
		4	Licensed under the MIT license.
		5
		6	*/
		7
		8	// first an inline dependency, jquery.colorhelpers.js, we inline it here
		9	// for convenience
		10
		11	/* Plugin for jQuery for working with colors.
		12	*
		13	* Version 1.1.
		14	*
		15	* Inspiration from jQuery color animation plugin by John Resig.
		16	*
		17	* Released under the MIT license by Ole Laursen, October 2009.
		18	*
		19	* Examples:
		20	*
		21	* $.color.parse("#fff").scale('rgb', 0.25).add('a', -0.5).toString()
		22	* var c = $.color.extract($("#mydiv"), 'background-color');
		23	* console.log(c.r, c.g, c.b, c.a);
		24	* $.color.make(100, 50, 25, 0.4).toString() // returns "rgba(100,50,25,0.4)"
		25	*
		26	* Note that .scale() and .add() return the same modified object
		27	* instead of making a new one.
		28	*
		29	* V. 1.1: Fix error handling so e.g. parsing an empty string does
		30	* produce a color rather than just crashing.
		31	*/
		32	(function($){$.color={};$.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);
		33
		34	// the actual Flot code
		35	(function($) {
		36
		37	// Cache the prototype hasOwnProperty for faster access
		38
		39	var hasOwnProperty = Object.prototype.hasOwnProperty;
		40
		41	// A shim to provide 'detach' to jQuery versions prior to 1.4. Using a DOM
		42	// operation produces the same effect as detach, i.e. removing the element
		43	// without touching its jQuery data.
		44
		45	// Do not merge this into Flot 0.9, since it requires jQuery 1.4.4+.
		46
		47	if (!$.fn.detach) {
		48	$.fn.detach = function() {
		49	return this.each(function() {
		50	if (this.parentNode) {
		51	this.parentNode.removeChild( this );
		52	}
		53	});
		54	};
		55	}
		56
		57	///////////////////////////////////////////////////////////////////////////
		58	// The Canvas object is a wrapper around an HTML5 <canvas> tag.
		59	//
		60	// @constructor
		61	// @param {string} cls List of classes to apply to the canvas.
		62	// @param {element} container Element onto which to append the canvas.
		63	//
		64	// Requiring a container is a little iffy, but unfortunately canvas
		65	// operations don't work unless the canvas is attached to the DOM.
		66
		67	function Canvas(cls, container) {
		68
		69	var element = container.children("." + cls)[0];
		70
		71	if (element == null) {
		72
		73	element = document.createElement("canvas");
		74	element.className = cls;
		75
		76	$(element).css({ direction: "ltr", position: "absolute", left: 0, top: 0 })
		77	.appendTo(container);
		78
		79	// If HTML5 Canvas isn't available, fall back to [Ex\|Flash]canvas
		80
		81	if (!element.getContext) {
		82	if (window.G_vmlCanvasManager) {
		83	element = window.G_vmlCanvasManager.initElement(element);
		84	} else {
		85	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.");
		86	}
		87	}
		88	}
		89
		90	this.element = element;
		91
		92	var context = this.context = element.getContext("2d");
		93
		94	// Determine the screen's ratio of physical to device-independent
		95	// pixels. This is the ratio between the canvas width that the browser
		96	// advertises and the number of pixels actually present in that space.
		97
		98	// The iPhone 4, for example, has a device-independent width of 320px,
		99	// but its screen is actually 640px wide. It therefore has a pixel
		100	// ratio of 2, while most normal devices have a ratio of 1.
		101
		102	var devicePixelRatio = window.devicePixelRatio \|\| 1,
		103	backingStoreRatio =
		104	context.webkitBackingStorePixelRatio \|\|
		105	context.mozBackingStorePixelRatio \|\|
		106	context.msBackingStorePixelRatio \|\|
		107	context.oBackingStorePixelRatio \|\|
		108	context.backingStorePixelRatio \|\| 1;
		109
		110	this.pixelRatio = devicePixelRatio / backingStoreRatio;
		111
		112	// Size the canvas to match the internal dimensions of its container
		113
		114	this.resize(container.width(), container.height());
		115
		116	// Collection of HTML div layers for text overlaid onto the canvas
		117
		118	this.textContainer = null;
		119	this.text = {};
		120
		121	// Cache of text fragments and metrics, so we can avoid expensively
		122	// re-calculating them when the plot is re-rendered in a loop.
		123
		124	this._textCache = {};
		125	}
		126
		127	// Resizes the canvas to the given dimensions.
		128	//
		129	// @param {number} width New width of the canvas, in pixels.
		130	// @param {number} width New height of the canvas, in pixels.
		131
		132	Canvas.prototype.resize = function(width, height) {
		133
		134	if (width <= 0 \|\| height <= 0) {
		135	throw new Error("Invalid dimensions for plot, width = " + width + ", height = " + height);
		136	}
		137
		138	var element = this.element,
		139	context = this.context,
		140	pixelRatio = this.pixelRatio;
		141
		142	// Resize the canvas, increasing its density based on the display's
		143	// pixel ratio; basically giving it more pixels without increasing the
		144	// size of its element, to take advantage of the fact that retina
		145	// displays have that many more pixels in the same advertised space.
		146
		147	// Resizing should reset the state (excanvas seems to be buggy though)
		148
		149	if (this.width != width) {
		150	element.width = width * pixelRatio;
		151	element.style.width = width + "px";
		152	this.width = width;
		153	}
		154
		155	if (this.height != height) {
		156	element.height = height * pixelRatio;
		157	element.style.height = height + "px";
		158	this.height = height;
		159	}
		160
		161	// Save the context, so we can reset in case we get replotted. The
		162	// restore ensure that we're really back at the initial state, and
		163	// should be safe even if we haven't saved the initial state yet.
		164
		165	context.restore();
		166	context.save();
		167
		168	// Scale the coordinate space to match the display density; so even though we
		169	// may have twice as many pixels, we still want lines and other drawing to
		170	// appear at the same size; the extra pixels will just make them crisper.
		171
		172	context.scale(pixelRatio, pixelRatio);
		173	};
		174
		175	// Clears the entire canvas area, not including any overlaid HTML text
		176
		177	Canvas.prototype.clear = function() {
		178	this.context.clearRect(0, 0, this.width, this.height);
		179	};
		180
		181	// Finishes rendering the canvas, including managing the text overlay.
		182
		183	Canvas.prototype.render = function() {
		184
		185	var cache = this._textCache;
		186
		187	// For each text layer, add elements marked as active that haven't
		188	// already been rendered, and remove those that are no longer active.
		189
		190	for (var layerKey in cache) {
		191	if (hasOwnProperty.call(cache, layerKey)) {
		192
		193	var layer = this.getTextLayer(layerKey),
		194	layerCache = cache[layerKey];
		195
		196	layer.hide();
		197
		198	for (var styleKey in layerCache) {
		199	if (hasOwnProperty.call(layerCache, styleKey)) {
		200	var styleCache = layerCache[styleKey];
		201	for (var key in styleCache) {
		202	if (hasOwnProperty.call(styleCache, key)) {
		203
		204	var positions = styleCache[key].positions;
		205
		206	for (var i = 0, position; position = positions[i]; i++) {
		207	if (position.active) {
		208	if (!position.rendered) {
		209	layer.append(position.element);
		210	position.rendered = true;
		211	}
		212	} else {
		213	positions.splice(i--, 1);
		214	if (position.rendered) {
		215	position.element.detach();
		216	}
		217	}
		218	}
		219
		220	if (positions.length == 0) {
		221	delete styleCache[key];
		222	}
		223	}
		224	}
		225	}
		226	}
		227
		228	layer.show();
		229	}
		230	}
		231	};
		232
		233	// Creates (if necessary) and returns the text overlay container.
		234	//
		235	// @param {string} classes String of space-separated CSS classes used to
		236	// uniquely identify the text layer.
		237	// @return {object} The jQuery-wrapped text-layer div.
		238
		239	Canvas.prototype.getTextLayer = function(classes) {
		240
		241	var layer = this.text[classes];
		242
		243	// Create the text layer if it doesn't exist
		244
		245	if (layer == null) {
		246
		247	// Create the text layer container, if it doesn't exist
		248
		249	if (this.textContainer == null) {
		250	this.textContainer = $("<div class='flot-text'></div>")
		251	.css({
		252	position: "absolute",
		253	top: 0,
		254	left: 0,
		255	bottom: 0,
		256	right: 0,
		257	'font-size': "smaller",
		258	color: "#545454"
		259	})
		260	.insertAfter(this.element);
		261	}
		262
		263	layer = this.text[classes] = $("<div></div>")
		264	.addClass(classes)
		265	.css({
		266	position: "absolute",
		267	top: 0,
		268	left: 0,
		269	bottom: 0,
		270	right: 0
		271	})
		272	.appendTo(this.textContainer);
		273	}
		274
		275	return layer;
		276	};
		277
		278	// Creates (if necessary) and returns a text info object.
		279	//
		280	// The object looks like this:
		281	//
		282	// {
		283	// width: Width of the text's wrapper div.
		284	// height: Height of the text's wrapper div.
		285	// element: The jQuery-wrapped HTML div containing the text.
		286	// positions: Array of positions at which this text is drawn.
		287	// }
		288	//
		289	// The positions array contains objects that look like this:
		290	//
		291	// {
		292	// active: Flag indicating whether the text should be visible.
		293	// rendered: Flag indicating whether the text is currently visible.
		294	// element: The jQuery-wrapped HTML div containing the text.
		295	// x: X coordinate at which to draw the text.
		296	// y: Y coordinate at which to draw the text.
		297	// }
		298	//
		299	// Each position after the first receives a clone of the original element.
		300	//
		301	// The idea is that that the width, height, and general 'identity' of the
		302	// text is constant no matter where it is placed; the placements are a
		303	// secondary property.
		304	//
		305	// Canvas maintains a cache of recently-used text info objects; getTextInfo
		306	// either returns the cached element or creates a new entry.
		307	//
		308	// @param {string} layer A string of space-separated CSS classes uniquely
		309	// identifying the layer containing this text.
		310	// @param {string} text Text string to retrieve info for.
		311	// @param {(string\|object)=} font Either a string of space-separated CSS
		312	// classes or a font-spec object, defining the text's font and style.
		313	// @param {number=} angle Angle at which to rotate the text, in degrees.
		314	// Angle is currently unused, it will be implemented in the future.
		315	// @param {number=} width Maximum width of the text before it wraps.
		316	// @return {object} a text info object.
		317
		318	Canvas.prototype.getTextInfo = function(layer, text, font, angle, width) {
		319
		320	var textStyle, layerCache, styleCache, info;
		321
		322	// Cast the value to a string, in case we were given a number or such
		323
		324	text = "" + text;
		325
		326	// If the font is a font-spec object, generate a CSS font definition
		327
		328	if (typeof font === "object") {
		329	textStyle = font.style + " " + font.variant + " " + font.weight + " " + font.size + "px/" + font.lineHeight + "px " + font.family;
		330	} else {
		331	textStyle = font;
		332	}
		333
		334	// Retrieve (or create) the cache for the text's layer and styles
		335
		336	layerCache = this._textCache[layer];
		337
		338	if (layerCache == null) {
		339	layerCache = this._textCache[layer] = {};
		340	}
		341
		342	styleCache = layerCache[textStyle];
		343
		344	if (styleCache == null) {
		345	styleCache = layerCache[textStyle] = {};
		346	}
		347
		348	info = styleCache[text];
		349
		350	// If we can't find a matching element in our cache, create a new one
		351
		352	if (info == null) {
		353
		354	var element = $("<div></div>").html(text)
		355	.css({
		356	position: "absolute",
		357	'max-width': width,
		358	top: -9999
		359	})
		360	.appendTo(this.getTextLayer(layer));
		361
		362	if (typeof font === "object") {
		363	element.css({
		364	font: textStyle,
		365	color: font.color
		366	});
		367	} else if (typeof font === "string") {
		368	element.addClass(font);
		369	}
		370
		371	info = styleCache[text] = {
		372	width: element.outerWidth(true),
		373	height: element.outerHeight(true),
		374	element: element,
		375	positions: []
		376	};
		377
		378	element.detach();
		379	}
		380
		381	return info;
		382	};
		383
		384	// Adds a text string to the canvas text overlay.
		385	//
		386	// The text isn't drawn immediately; it is marked as rendering, which will
		387	// result in its addition to the canvas on the next render pass.
		388	//
		389	// @param {string} layer A string of space-separated CSS classes uniquely
		390	// identifying the layer containing this text.
		391	// @param {number} x X coordinate at which to draw the text.
		392	// @param {number} y Y coordinate at which to draw the text.
		393	// @param {string} text Text string to draw.
		394	// @param {(string\|object)=} font Either a string of space-separated CSS
		395	// classes or a font-spec object, defining the text's font and style.
		396	// @param {number=} angle Angle at which to rotate the text, in degrees.
		397	// Angle is currently unused, it will be implemented in the future.
		398	// @param {number=} width Maximum width of the text before it wraps.
		399	// @param {string=} halign Horizontal alignment of the text; either "left",
		400	// "center" or "right".
		401	// @param {string=} valign Vertical alignment of the text; either "top",
		402	// "middle" or "bottom".
		403
		404	Canvas.prototype.addText = function(layer, x, y, text, font, angle, width, halign, valign) {
		405
		406	var info = this.getTextInfo(layer, text, font, angle, width),
		407	positions = info.positions;
		408
		409	// Tweak the div's position to match the text's alignment
		410
		411	if (halign == "center") {
		412	x -= info.width / 2;
		413	} else if (halign == "right") {
		414	x -= info.width;
		415	}
		416
		417	if (valign == "middle") {
		418	y -= info.height / 2;
		419	} else if (valign == "bottom") {
		420	y -= info.height;
		421	}
		422
		423	// Determine whether this text already exists at this position.
		424	// If so, mark it for inclusion in the next render pass.
		425
		426	for (var i = 0, position; position = positions[i]; i++) {
		427	if (position.x == x && position.y == y) {
		428	position.active = true;
		429	return;
		430	}
		431	}
		432
		433	// If the text doesn't exist at this position, create a new entry
		434
		435	// For the very first position we'll re-use the original element,
		436	// while for subsequent ones we'll clone it.
		437
		438	position = {
		439	active: true,
		440	rendered: false,
		441	element: positions.length ? info.element.clone() : info.element,
		442	x: x,
		443	y: y
		444	};
		445
		446	positions.push(position);
		447
		448	// Move the element to its final position within the container
		449
		450	position.element.css({
		451	top: Math.round(y),
		452	left: Math.round(x),
		453	'text-align': halign // In case the text wraps
		454	});
		455	};
		456
		457	// Removes one or more text strings from the canvas text overlay.
		458	//
		459	// If no parameters are given, all text within the layer is removed.
		460	//
		461	// Note that the text is not immediately removed; it is simply marked as
		462	// inactive, which will result in its removal on the next render pass.
		463	// This avoids the performance penalty for 'clear and redraw' behavior,
		464	// where we potentially get rid of all text on a layer, but will likely
		465	// add back most or all of it later, as when redrawing axes, for example.
		466	//
		467	// @param {string} layer A string of space-separated CSS classes uniquely
		468	// identifying the layer containing this text.
		469	// @param {number=} x X coordinate of the text.
		470	// @param {number=} y Y coordinate of the text.
		471	// @param {string=} text Text string to remove.
		472	// @param {(string\|object)=} font Either a string of space-separated CSS
		473	// classes or a font-spec object, defining the text's font and style.
		474	// @param {number=} angle Angle at which the text is rotated, in degrees.
		475	// Angle is currently unused, it will be implemented in the future.
		476
		477	Canvas.prototype.removeText = function(layer, x, y, text, font, angle) {
		478	if (text == null) {
		479	var layerCache = this._textCache[layer];
		480	if (layerCache != null) {
		481	for (var styleKey in layerCache) {
		482	if (hasOwnProperty.call(layerCache, styleKey)) {
		483	var styleCache = layerCache[styleKey];
		484	for (var key in styleCache) {
		485	if (hasOwnProperty.call(styleCache, key)) {
		486	var positions = styleCache[key].positions;
		487	for (var i = 0, position; position = positions[i]; i++) {
		488	position.active = false;
		489	}
		490	}
		491	}
		492	}
		493	}
		494	}
		495	} else {
		496	var positions = this.getTextInfo(layer, text, font, angle).positions;
		497	for (var i = 0, position; position = positions[i]; i++) {
		498	if (position.x == x && position.y == y) {
		499	position.active = false;
		500	}
		501	}
		502	}
		503	};
		504
		505	///////////////////////////////////////////////////////////////////////////
		506	// The top-level container for the entire plot.
		507
		508	function Plot(placeholder, data_, options_, plugins) {
		509	// data is on the form:
		510	// [ series1, series2 ... ]
		511	// where series is either just the data as [ [x1, y1], [x2, y2], ... ]
		512	// or { data: [ [x1, y1], [x2, y2], ... ], label: "some label", ... }
		513
		514	var series = [],
		515	options = {
		516	// the color theme used for graphs
		517	colors: ["#edc240", "#afd8f8", "#cb4b4b", "#4da74d", "#9440ed"],
		518	legend: {
		519	show: true,
		520	noColumns: 1, // number of colums in legend table
		521	labelFormatter: null, // fn: string -> string
		522	labelBoxBorderColor: "#ccc", // border color for the little label boxes
		523	container: null, // container (as jQuery object) to put legend in, null means default on top of graph
		524	position: "ne", // position of default legend container within plot
		525	margin: 5, // distance from grid edge to default legend container within plot
		526	backgroundColor: null, // null means auto-detect
		527	backgroundOpacity: 0.85, // set to 0 to avoid background
		528	sorted: null // default to no legend sorting
		529	},
		530	xaxis: {
		531	show: null, // null = auto-detect, true = always, false = never
		532	position: "bottom", // or "top"
		533	mode: null, // null or "time"
		534	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" }
		535	color: null, // base color, labels, ticks
		536	tickColor: null, // possibly different color of ticks, e.g. "rgba(0,0,0,0.15)"
		537	transform: null, // null or f: number -> number to transform axis
		538	inverseTransform: null, // if transform is set, this should be the inverse function
		539	min: null, // min. value to show, null means set automatically
		540	max: null, // max. value to show, null means set automatically
		541	autoscaleMargin: null, // margin in % to add if auto-setting min/max
		542	ticks: null, // either [1, 3] or [[1, "a"], 3] or (fn: axis info -> ticks) or app. number of ticks for auto-ticks
		543	tickFormatter: null, // fn: number -> string
		544	labelWidth: null, // size of tick labels in pixels
		545	labelHeight: null,
		546	reserveSpace: null, // whether to reserve space even if axis isn't shown
		547	tickLength: null, // size in pixels of ticks, or "full" for whole line
		548	alignTicksWithAxis: null, // axis number or null for no sync
		549	tickDecimals: null, // no. of decimals, null means auto
		550	tickSize: null, // number or [number, "unit"]
		551	minTickSize: null // number or [number, "unit"]
		552	},
		553	yaxis: {
		554	autoscaleMargin: 0.02,
		555	position: "left" // or "right"
		556	},
		557	xaxes: [],
		558	yaxes: [],
		559	series: {
		560	points: {
		561	show: false,
		562	radius: 3,
		563	lineWidth: 2, // in pixels
		564	fill: true,
		565	fillColor: "#ffffff",
		566	symbol: "circle" // or callback
		567	},
		568	lines: {
		569	// we don't put in show: false so we can see
		570	// whether lines were actively disabled
		571	lineWidth: 2, // in pixels
		572	fill: false,
		573	fillColor: null,
		574	steps: false
		575	// Omit 'zero', so we can later default its value to
		576	// match that of the 'fill' option.
		577	},
		578	bars: {
		579	show: false,
		580	lineWidth: 2, // in pixels
		581	barWidth: 1, // in units of the x axis
		582	fill: true,
		583	fillColor: null,
		584	align: "left", // "left", "right", or "center"
		585	horizontal: false,
		586	zero: true
		587	},
		588	shadowSize: 3,
		589	highlightColor: null
		590	},
		591	grid: {
		592	show: true,
		593	aboveData: false,
		594	color: "#545454", // primary color used for outline and labels
		595	backgroundColor: null, // null for transparent, else color
		596	borderColor: null, // set if different from the grid color
		597	tickColor: null, // color for the ticks, e.g. "rgba(0,0,0,0.15)"
		598	margin: 0, // distance from the canvas edge to the grid
		599	labelMargin: 5, // in pixels
		600	axisMargin: 8, // in pixels
		601	borderWidth: 2, // in pixels
		602	minBorderMargin: null, // in pixels, null means taken from points radius
		603	markings: null, // array of ranges or fn: axes -> array of ranges
		604	markingsColor: "#f4f4f4",
		605	markingsLineWidth: 2,
		606	// interactive stuff
		607	clickable: false,
		608	hoverable: false,
		609	autoHighlight: true, // highlight in case mouse is near
		610	mouseActiveRadius: 10 // how far the mouse can be away to activate an item
		611	},
		612	interaction: {
		613	redrawOverlayInterval: 1000/60 // time between updates, -1 means in same flow
		614	},
		615	hooks: {}
		616	},
		617	surface = null, // the canvas for the plot itself
		618	overlay = null, // canvas for interactive stuff on top of plot
		619	eventHolder = null, // jQuery object that events should be bound to
		620	ctx = null, octx = null,
		621	xaxes = [], yaxes = [],
		622	plotOffset = { left: 0, right: 0, top: 0, bottom: 0},
		623	plotWidth = 0, plotHeight = 0,
		624	hooks = {
		625	processOptions: [],
		626	processRawData: [],
		627	processDatapoints: [],
		628	processOffset: [],
		629	drawBackground: [],
		630	drawSeries: [],
		631	draw: [],
		632	bindEvents: [],
		633	drawOverlay: [],
		634	shutdown: []
		635	},
		636	plot = this;
		637
		638	// public functions
		639	plot.setData = setData;
		640	plot.setupGrid = setupGrid;
		641	plot.draw = draw;
		642	plot.getPlaceholder = function() { return placeholder; };
		643	plot.getCanvas = function() { return surface.element; };
		644	plot.getPlotOffset = function() { return plotOffset; };
		645	plot.width = function () { return plotWidth; };
		646	plot.height = function () { return plotHeight; };
		647	plot.offset = function () {
		648	var o = eventHolder.offset();
		649	o.left += plotOffset.left;
		650	o.top += plotOffset.top;
		651	return o;
		652	};
		653	plot.getData = function () { return series; };
		654	plot.getAxes = function () {
		655	var res = {}, i;
		656	$.each(xaxes.concat(yaxes), function (_, axis) {
		657	if (axis)
		658	res[axis.direction + (axis.n != 1 ? axis.n : "") + "axis"] = axis;
		659	});
		660	return res;
		661	};
		662	plot.getXAxes = function () { return xaxes; };
		663	plot.getYAxes = function () { return yaxes; };
		664	plot.c2p = canvasToAxisCoords;
		665	plot.p2c = axisToCanvasCoords;
		666	plot.getOptions = function () { return options; };
		667	plot.highlight = highlight;
		668	plot.unhighlight = unhighlight;
		669	plot.triggerRedrawOverlay = triggerRedrawOverlay;
		670	plot.pointOffset = function(point) {
		671	return {
		672	left: parseInt(xaxes[axisNumber(point, "x") - 1].p2c(+point.x) + plotOffset.left, 10),
		673	top: parseInt(yaxes[axisNumber(point, "y") - 1].p2c(+point.y) + plotOffset.top, 10)
		674	};
		675	};
		676	plot.shutdown = shutdown;
		677	plot.destroy = function () {
		678	shutdown();
		679	placeholder.removeData("plot").empty();
		680
		681	series = [];
		682	options = null;
		683	surface = null;
		684	overlay = null;
		685	eventHolder = null;
		686	ctx = null;
		687	octx = null;
		688	xaxes = [];
		689	yaxes = [];
		690	hooks = null;
		691	highlights = [];
		692	plot = null;
		693	};
		694	plot.resize = function () {
		695	var width = placeholder.width(),
		696	height = placeholder.height();
		697	surface.resize(width, height);
		698	overlay.resize(width, height);
		699	};
		700
		701	// public attributes
		702	plot.hooks = hooks;
		703
		704	// initialize
		705	initPlugins(plot);
		706	parseOptions(options_);
		707	setupCanvases();
		708	setData(data_);
		709	setupGrid();
		710	draw();
		711	bindEvents();
		712
		713
		714	function executeHooks(hook, args) {
		715	args = [plot].concat(args);
		716	for (var i = 0; i < hook.length; ++i)
		717	hook[i].apply(this, args);
		718	}
		719
		720	function initPlugins() {
		721
		722	// References to key classes, allowing plugins to modify them
		723
		724	var classes = {
		725	Canvas: Canvas
		726	};
		727
		728	for (var i = 0; i < plugins.length; ++i) {
		729	var p = plugins[i];
		730	p.init(plot, classes);
		731	if (p.options)
		732	$.extend(true, options, p.options);
		733	}
		734	}
		735
		736	function parseOptions(opts) {
		737
		738	$.extend(true, options, opts);
		739
		740	// $.extend merges arrays, rather than replacing them. When less
		741	// colors are provided than the size of the default palette, we
		742	// end up with those colors plus the remaining defaults, which is
		743	// not expected behavior; avoid it by replacing them here.
		744
		745	if (opts && opts.colors) {
		746	options.colors = opts.colors;
		747	}
		748
		749	if (options.xaxis.color == null)
		750	options.xaxis.color = $.color.parse(options.grid.color).scale('a', 0.22).toString();
		751	if (options.yaxis.color == null)
		752	options.yaxis.color = $.color.parse(options.grid.color).scale('a', 0.22).toString();
		753
		754	if (options.xaxis.tickColor == null) // grid.tickColor for back-compatibility
		755	options.xaxis.tickColor = options.grid.tickColor \|\| options.xaxis.color;
		756	if (options.yaxis.tickColor == null) // grid.tickColor for back-compatibility
		757	options.yaxis.tickColor = options.grid.tickColor \|\| options.yaxis.color;
		758
		759	if (options.grid.borderColor == null)
		760	options.grid.borderColor = options.grid.color;
		761	if (options.grid.tickColor == null)
		762	options.grid.tickColor = $.color.parse(options.grid.color).scale('a', 0.22).toString();
		763
		764	// Fill in defaults for axis options, including any unspecified
		765	// font-spec fields, if a font-spec was provided.
		766
		767	// If no x/y axis options were provided, create one of each anyway,
		768	// since the rest of the code assumes that they exist.
		769
		770	var i, axisOptions, axisCount,
		771	fontSize = placeholder.css("font-size"),
		772	fontSizeDefault = fontSize ? +fontSize.replace("px", "") : 13,
		773	fontDefaults = {
		774	style: placeholder.css("font-style"),
		775	size: Math.round(0.8 * fontSizeDefault),
		776	variant: placeholder.css("font-variant"),
		777	weight: placeholder.css("font-weight"),
		778	family: placeholder.css("font-family")
		779	};
		780
		781	axisCount = options.xaxes.length \|\| 1;
		782	for (i = 0; i < axisCount; ++i) {
		783
		784	axisOptions = options.xaxes[i];
		785	if (axisOptions && !axisOptions.tickColor) {
		786	axisOptions.tickColor = axisOptions.color;
		787	}
		788
		789	axisOptions = $.extend(true, {}, options.xaxis, axisOptions);
		790	options.xaxes[i] = axisOptions;
		791
		792	if (axisOptions.font) {
		793	axisOptions.font = $.extend({}, fontDefaults, axisOptions.font);
		794	if (!axisOptions.font.color) {
		795	axisOptions.font.color = axisOptions.color;
		796	}
		797	if (!axisOptions.font.lineHeight) {
		798	axisOptions.font.lineHeight = Math.round(axisOptions.font.size * 1.15);
		799	}
		800	}
		801	}
		802
		803	axisCount = options.yaxes.length \|\| 1;
		804	for (i = 0; i < axisCount; ++i) {
		805
		806	axisOptions = options.yaxes[i];
		807	if (axisOptions && !axisOptions.tickColor) {
		808	axisOptions.tickColor = axisOptions.color;
		809	}
		810
		811	axisOptions = $.extend(true, {}, options.yaxis, axisOptions);
		812	options.yaxes[i] = axisOptions;
		813
		814	if (axisOptions.font) {
		815	axisOptions.font = $.extend({}, fontDefaults, axisOptions.font);
		816	if (!axisOptions.font.color) {
		817	axisOptions.font.color = axisOptions.color;
		818	}
		819	if (!axisOptions.font.lineHeight) {
		820	axisOptions.font.lineHeight = Math.round(axisOptions.font.size * 1.15);
		821	}
		822	}
		823	}
		824
		825	// backwards compatibility, to be removed in future
		826	if (options.xaxis.noTicks && options.xaxis.ticks == null)
		827	options.xaxis.ticks = options.xaxis.noTicks;
		828	if (options.yaxis.noTicks && options.yaxis.ticks == null)
		829	options.yaxis.ticks = options.yaxis.noTicks;
		830	if (options.x2axis) {
		831	options.xaxes[1] = $.extend(true, {}, options.xaxis, options.x2axis);
		832	options.xaxes[1].position = "top";
		833	// Override the inherit to allow the axis to auto-scale
		834	if (options.x2axis.min == null) {
		835	options.xaxes[1].min = null;
		836	}
		837	if (options.x2axis.max == null) {
		838	options.xaxes[1].max = null;
		839	}
		840	}
		841	if (options.y2axis) {
		842	options.yaxes[1] = $.extend(true, {}, options.yaxis, options.y2axis);
		843	options.yaxes[1].position = "right";
		844	// Override the inherit to allow the axis to auto-scale
		845	if (options.y2axis.min == null) {
		846	options.yaxes[1].min = null;
		847	}
		848	if (options.y2axis.max == null) {
		849	options.yaxes[1].max = null;
		850	}
		851	}
		852	if (options.grid.coloredAreas)
		853	options.grid.markings = options.grid.coloredAreas;
		854	if (options.grid.coloredAreasColor)
		855	options.grid.markingsColor = options.grid.coloredAreasColor;
		856	if (options.lines)
		857	$.extend(true, options.series.lines, options.lines);
		858	if (options.points)
		859	$.extend(true, options.series.points, options.points);
		860	if (options.bars)
		861	$.extend(true, options.series.bars, options.bars);
		862	if (options.shadowSize != null)
		863	options.series.shadowSize = options.shadowSize;
		864	if (options.highlightColor != null)
		865	options.series.highlightColor = options.highlightColor;
		866
		867	// save options on axes for future reference
		868	for (i = 0; i < options.xaxes.length; ++i)
		869	getOrCreateAxis(xaxes, i + 1).options = options.xaxes[i];
		870	for (i = 0; i < options.yaxes.length; ++i)
		871	getOrCreateAxis(yaxes, i + 1).options = options.yaxes[i];
		872
		873	// add hooks from options
		874	for (var n in hooks)
		875	if (options.hooks[n] && options.hooks[n].length)
		876	hooks[n] = hooks[n].concat(options.hooks[n]);
		877
		878	executeHooks(hooks.processOptions, [options]);
		879	}
		880
		881	function setData(d) {
		882	series = parseData(d);
		883	fillInSeriesOptions();
		884	processData();
		885	}
		886
		887	function parseData(d) {
		888	var res = [];
		889	for (var i = 0; i < d.length; ++i) {
		890	var s = $.extend(true, {}, options.series);
		891
		892	if (d[i].data != null) {
		893	s.data = d[i].data; // move the data instead of deep-copy
		894	delete d[i].data;
		895
		896	$.extend(true, s, d[i]);
		897
		898	d[i].data = s.data;
		899	}
		900	else
		901	s.data = d[i];
		902	res.push(s);
		903	}
		904
		905	return res;
		906	}
		907
		908	function axisNumber(obj, coord) {
		909	var a = obj[coord + "axis"];
		910	if (typeof a == "object") // if we got a real axis, extract number
		911	a = a.n;
		912	if (typeof a != "number")
		913	a = 1; // default to first axis
		914	return a;
		915	}
		916
		917	function allAxes() {
		918	// return flat array without annoying null entries
		919	return $.grep(xaxes.concat(yaxes), function (a) { return a; });
		920	}
		921
		922	function canvasToAxisCoords(pos) {
		923	// return an object with x/y corresponding to all used axes
		924	var res = {}, i, axis;
		925	for (i = 0; i < xaxes.length; ++i) {
		926	axis = xaxes[i];
		927	if (axis && axis.used)
		928	res["x" + axis.n] = axis.c2p(pos.left);
		929	}
		930
		931	for (i = 0; i < yaxes.length; ++i) {
		932	axis = yaxes[i];
		933	if (axis && axis.used)
		934	res["y" + axis.n] = axis.c2p(pos.top);
		935	}
		936
		937	if (res.x1 !== undefined)
		938	res.x = res.x1;
		939	if (res.y1 !== undefined)
		940	res.y = res.y1;
		941
		942	return res;
		943	}
		944
		945	function axisToCanvasCoords(pos) {
		946	// get canvas coords from the first pair of x/y found in pos
		947	var res = {}, i, axis, key;
		948
		949	for (i = 0; i < xaxes.length; ++i) {
		950	axis = xaxes[i];
		951	if (axis && axis.used) {
		952	key = "x" + axis.n;
		953	if (pos[key] == null && axis.n == 1)
		954	key = "x";
		955
		956	if (pos[key] != null) {
		957	res.left = axis.p2c(pos[key]);
		958	break;
		959	}
		960	}
		961	}
		962
		963	for (i = 0; i < yaxes.length; ++i) {
		964	axis = yaxes[i];
		965	if (axis && axis.used) {
		966	key = "y" + axis.n;
		967	if (pos[key] == null && axis.n == 1)
		968	key = "y";
		969
		970	if (pos[key] != null) {
		971	res.top = axis.p2c(pos[key]);
		972	break;
		973	}
		974	}
		975	}
		976
		977	return res;
		978	}
		979
		980	function getOrCreateAxis(axes, number) {
		981	if (!axes[number - 1])
		982	axes[number - 1] = {
		983	n: number, // save the number for future reference
		984	direction: axes == xaxes ? "x" : "y",
		985	options: $.extend(true, {}, axes == xaxes ? options.xaxis : options.yaxis)
		986	};
		987
		988	return axes[number - 1];
		989	}
		990
		991	function fillInSeriesOptions() {
		992
		993	var neededColors = series.length, maxIndex = -1, i;
		994
		995	// Subtract the number of series that already have fixed colors or
		996	// color indexes from the number that we still need to generate.
		997
		998	for (i = 0; i < series.length; ++i) {
		999	var sc = series[i].color;
		1000	if (sc != null) {
		1001	neededColors--;
		1002	if (typeof sc == "number" && sc > maxIndex) {
		1003	maxIndex = sc;
		1004	}
		1005	}
		1006	}
		1007
		1008	// If any of the series have fixed color indexes, then we need to
		1009	// generate at least as many colors as the highest index.
		1010
		1011	if (neededColors <= maxIndex) {
		1012	neededColors = maxIndex + 1;
		1013	}
		1014
		1015	// Generate all the colors, using first the option colors and then
		1016	// variations on those colors once they're exhausted.
		1017
		1018	var c, colors = [], colorPool = options.colors,
		1019	colorPoolSize = colorPool.length, variation = 0;
		1020
		1021	for (i = 0; i < neededColors; i++) {
		1022
		1023	c = $.color.parse(colorPool[i % colorPoolSize] \|\| "#666");
		1024
		1025	// Each time we exhaust the colors in the pool we adjust
		1026	// a scaling factor used to produce more variations on
		1027	// those colors. The factor alternates negative/positive
		1028	// to produce lighter/darker colors.
		1029
		1030	// Reset the variation after every few cycles, or else
		1031	// it will end up producing only white or black colors.
		1032
		1033	if (i % colorPoolSize == 0 && i) {
		1034	if (variation >= 0) {
		1035	if (variation < 0.5) {
		1036	variation = -variation - 0.2;
		1037	} else variation = 0;
		1038	} else variation = -variation;
		1039	}
		1040
		1041	colors[i] = c.scale('rgb', 1 + variation);
		1042	}
		1043
		1044	// Finalize the series options, filling in their colors
		1045
		1046	var colori = 0, s;
		1047	for (i = 0; i < series.length; ++i) {
		1048	s = series[i];
		1049
		1050	// assign colors
		1051	if (s.color == null) {
		1052	s.color = colors[colori].toString();
		1053	++colori;
		1054	}
		1055	else if (typeof s.color == "number")
		1056	s.color = colors[s.color].toString();
		1057
		1058	// turn on lines automatically in case nothing is set
		1059	if (s.lines.show == null) {
		1060	var v, show = true;
		1061	for (v in s)
		1062	if (s[v] && s[v].show) {
		1063	show = false;
		1064	break;
		1065	}
		1066	if (show)
		1067	s.lines.show = true;
		1068	}
		1069
		1070	// If nothing was provided for lines.zero, default it to match
		1071	// lines.fill, since areas by default should extend to zero.
		1072
		1073	if (s.lines.zero == null) {
		1074	s.lines.zero = !!s.lines.fill;
		1075	}
		1076
		1077	// setup axes
		1078	s.xaxis = getOrCreateAxis(xaxes, axisNumber(s, "x"));
		1079	s.yaxis = getOrCreateAxis(yaxes, axisNumber(s, "y"));
		1080	}
		1081	}
		1082
		1083	function processData() {
		1084	var topSentry = Number.POSITIVE_INFINITY,
		1085	bottomSentry = Number.NEGATIVE_INFINITY,
		1086	fakeInfinity = Number.MAX_VALUE,
		1087	i, j, k, m, length,
		1088	s, points, ps, x, y, axis, val, f, p,
		1089	data, format;
		1090
		1091	function updateAxis(axis, min, max) {
		1092	if (min < axis.datamin && min != -fakeInfinity)
		1093	axis.datamin = min;
		1094	if (max > axis.datamax && max != fakeInfinity)
		1095	axis.datamax = max;
		1096	}
		1097
		1098	$.each(allAxes(), function (_, axis) {
		1099	// init axis
		1100	axis.datamin = topSentry;
		1101	axis.datamax = bottomSentry;
		1102	axis.used = false;
		1103	});
		1104
		1105	for (i = 0; i < series.length; ++i) {
		1106	s = series[i];
		1107	s.datapoints = { points: [] };
		1108
		1109	executeHooks(hooks.processRawData, [ s, s.data, s.datapoints ]);
		1110	}
		1111
		1112	// first pass: clean and copy data
		1113	for (i = 0; i < series.length; ++i) {
		1114	s = series[i];
		1115
		1116	data = s.data;
		1117	format = s.datapoints.format;
		1118
		1119	if (!format) {
		1120	format = [];
		1121	// find out how to copy
		1122	format.push({ x: true, number: true, required: true });
		1123	format.push({ y: true, number: true, required: true });
		1124
		1125	if (s.bars.show \|\| (s.lines.show && s.lines.fill)) {
		1126	var autoscale = !!((s.bars.show && s.bars.zero) \|\| (s.lines.show && s.lines.zero));
		1127	format.push({ y: true, number: true, required: false, defaultValue: 0, autoscale: autoscale });
		1128	if (s.bars.horizontal) {
		1129	delete format[format.length - 1].y;
		1130	format[format.length - 1].x = true;
		1131	}
		1132	}
		1133
		1134	s.datapoints.format = format;
		1135	}
		1136
		1137	if (s.datapoints.pointsize != null)
		1138	continue; // already filled in
		1139
		1140	s.datapoints.pointsize = format.length;
		1141
		1142	ps = s.datapoints.pointsize;
		1143	points = s.datapoints.points;
		1144
		1145	var insertSteps = s.lines.show && s.lines.steps;
		1146	s.xaxis.used = s.yaxis.used = true;
		1147
		1148	for (j = k = 0; j < data.length; ++j, k += ps) {
		1149	p = data[j];
		1150
		1151	var nullify = p == null;
		1152	if (!nullify) {
		1153	for (m = 0; m < ps; ++m) {
		1154	val = p[m];
		1155	f = format[m];
		1156
		1157	if (f) {
		1158	if (f.number && val != null) {
		1159	val = +val; // convert to number
		1160	if (isNaN(val))
		1161	val = null;
		1162	else if (val == Infinity)
		1163	val = fakeInfinity;
		1164	else if (val == -Infinity)
		1165	val = -fakeInfinity;
		1166	}
		1167
		1168	if (val == null) {
		1169	if (f.required)
		1170	nullify = true;
		1171
		1172	if (f.defaultValue != null)
		1173	val = f.defaultValue;
		1174	}
		1175	}
		1176
		1177	points[k + m] = val;
		1178	}
		1179	}
		1180
		1181	if (nullify) {
		1182	for (m = 0; m < ps; ++m) {
		1183	val = points[k + m];
		1184	if (val != null) {
		1185	f = format[m];
		1186	// extract min/max info
		1187	if (f.autoscale !== false) {
		1188	if (f.x) {
		1189	updateAxis(s.xaxis, val, val);
		1190	}
		1191	if (f.y) {
		1192	updateAxis(s.yaxis, val, val);
		1193	}
		1194	}
		1195	}
		1196	points[k + m] = null;
		1197	}
		1198	}
		1199	else {
		1200	// a little bit of line specific stuff that
		1201	// perhaps shouldn't be here, but lacking
		1202	// better means...
		1203	if (insertSteps && k > 0
		1204	&& points[k - ps] != null
		1205	&& points[k - ps] != points[k]
		1206	&& points[k - ps + 1] != points[k + 1]) {
		1207	// copy the point to make room for a middle point
		1208	for (m = 0; m < ps; ++m)
		1209	points[k + ps + m] = points[k + m];
		1210
		1211	// middle point has same y
		1212	points[k + 1] = points[k - ps + 1];
		1213
		1214	// we've added a point, better reflect that
		1215	k += ps;
		1216	}
		1217	}
		1218	}
		1219	}
		1220
		1221	// give the hooks a chance to run
		1222	for (i = 0; i < series.length; ++i) {
		1223	s = series[i];
		1224
		1225	executeHooks(hooks.processDatapoints, [ s, s.datapoints]);
		1226	}
		1227
		1228	// second pass: find datamax/datamin for auto-scaling
		1229	for (i = 0; i < series.length; ++i) {
		1230	s = series[i];
		1231	points = s.datapoints.points;
		1232	ps = s.datapoints.pointsize;
		1233	format = s.datapoints.format;
		1234
		1235	var xmin = topSentry, ymin = topSentry,
		1236	xmax = bottomSentry, ymax = bottomSentry;
		1237
		1238	for (j = 0; j < points.length; j += ps) {
		1239	if (points[j] == null)
		1240	continue;
		1241
		1242	for (m = 0; m < ps; ++m) {
		1243	val = points[j + m];
		1244	f = format[m];
		1245	if (!f \|\| f.autoscale === false \|\| val == fakeInfinity \|\| val == -fakeInfinity)
		1246	continue;
		1247
		1248	if (f.x) {
		1249	if (val < xmin)
		1250	xmin = val;
		1251	if (val > xmax)
		1252	xmax = val;
		1253	}
		1254	if (f.y) {
		1255	if (val < ymin)
		1256	ymin = val;
		1257	if (val > ymax)
		1258	ymax = val;
		1259	}
		1260	}
		1261	}
		1262
		1263	if (s.bars.show) {
		1264	// make sure we got room for the bar on the dancing floor
		1265	var delta;
		1266
		1267	switch (s.bars.align) {
		1268	case "left":
		1269	delta = 0;
		1270	break;
		1271	case "right":
		1272	delta = -s.bars.barWidth;
		1273	break;
		1274	default:
		1275	delta = -s.bars.barWidth / 2;
		1276	}
		1277
		1278	if (s.bars.horizontal) {
		1279	ymin += delta;
		1280	ymax += delta + s.bars.barWidth;
		1281	}
		1282	else {
		1283	xmin += delta;
		1284	xmax += delta + s.bars.barWidth;
		1285	}
		1286	}
		1287
		1288	updateAxis(s.xaxis, xmin, xmax);
		1289	updateAxis(s.yaxis, ymin, ymax);
		1290	}
		1291
		1292	$.each(allAxes(), function (_, axis) {
		1293	if (axis.datamin == topSentry)
		1294	axis.datamin = null;
		1295	if (axis.datamax == bottomSentry)
		1296	axis.datamax = null;
		1297	});
		1298	}
		1299
		1300	function setupCanvases() {
		1301
		1302	// Make sure the placeholder is clear of everything except canvases
		1303	// from a previous plot in this container that we'll try to re-use.
		1304
		1305	placeholder.css("padding", 0) // padding messes up the positioning
		1306	.children().filter(function(){
		1307	return !$(this).hasClass("flot-overlay") && !$(this).hasClass('flot-base');
		1308	}).remove();
		1309
		1310	if (placeholder.css("position") == 'static')
		1311	placeholder.css("position", "relative"); // for positioning labels and overlay
		1312
		1313	surface = new Canvas("flot-base", placeholder);
		1314	overlay = new Canvas("flot-overlay", placeholder); // overlay canvas for interactive features
		1315
		1316	ctx = surface.context;
		1317	octx = overlay.context;
		1318
		1319	// define which element we're listening for events on
		1320	eventHolder = $(overlay.element).unbind();
		1321
		1322	// If we're re-using a plot object, shut down the old one
		1323
		1324	var existing = placeholder.data("plot");
		1325
		1326	if (existing) {
		1327	existing.shutdown();
		1328	overlay.clear();
		1329	}
		1330
		1331	// save in case we get replotted
		1332	placeholder.data("plot", plot);
		1333	}
		1334
		1335	function bindEvents() {
		1336	// bind events
		1337	if (options.grid.hoverable) {
		1338	eventHolder.mousemove(onMouseMove);
		1339
		1340	// Use bind, rather than .mouseleave, because we officially
		1341	// still support jQuery 1.2.6, which doesn't define a shortcut
		1342	// for mouseenter or mouseleave. This was a bug/oversight that
		1343	// was fixed somewhere around 1.3.x. We can return to using
		1344	// .mouseleave when we drop support for 1.2.6.
		1345
		1346	eventHolder.bind("mouseleave", onMouseLeave);
		1347	}
		1348
		1349	if (options.grid.clickable)
		1350	eventHolder.click(onClick);
		1351
		1352	executeHooks(hooks.bindEvents, [eventHolder]);
		1353	}
		1354
		1355	function shutdown() {
		1356	if (redrawTimeout)
		1357	clearTimeout(redrawTimeout);
		1358
		1359	eventHolder.unbind("mousemove", onMouseMove);
		1360	eventHolder.unbind("mouseleave", onMouseLeave);
		1361	eventHolder.unbind("click", onClick);
		1362
		1363	executeHooks(hooks.shutdown, [eventHolder]);
		1364	}
		1365
		1366	function setTransformationHelpers(axis) {
		1367	// set helper functions on the axis, assumes plot area
		1368	// has been computed already
		1369
		1370	function identity(x) { return x; }
		1371
		1372	var s, m, t = axis.options.transform \|\| identity,
		1373	it = axis.options.inverseTransform;
		1374
		1375	// precompute how much the axis is scaling a point
		1376	// in canvas space
		1377	if (axis.direction == "x") {
		1378	s = axis.scale = plotWidth / Math.abs(t(axis.max) - t(axis.min));
		1379	m = Math.min(t(axis.max), t(axis.min));
		1380	}
		1381	else {
		1382	s = axis.scale = plotHeight / Math.abs(t(axis.max) - t(axis.min));
		1383	s = -s;
		1384	m = Math.max(t(axis.max), t(axis.min));
		1385	}
		1386
		1387	// data point to canvas coordinate
		1388	if (t == identity) // slight optimization
		1389	axis.p2c = function (p) { return (p - m) * s; };
		1390	else
		1391	axis.p2c = function (p) { return (t(p) - m) * s; };
		1392	// canvas coordinate to data point
		1393	if (!it)
		1394	axis.c2p = function (c) { return m + c / s; };
		1395	else
		1396	axis.c2p = function (c) { return it(m + c / s); };
		1397	}
		1398
		1399	function measureTickLabels(axis) {
		1400
		1401	var opts = axis.options,
		1402	ticks = axis.ticks \|\| [],
		1403	labelWidth = opts.labelWidth \|\| 0,
		1404	labelHeight = opts.labelHeight \|\| 0,
		1405	maxWidth = labelWidth \|\| (axis.direction == "x" ? Math.floor(surface.width / (ticks.length \|\| 1)) : null),
		1406	legacyStyles = axis.direction + "Axis " + axis.direction + axis.n + "Axis",
		1407	layer = "flot-" + axis.direction + "-axis flot-" + axis.direction + axis.n + "-axis " + legacyStyles,
		1408	font = opts.font \|\| "flot-tick-label tickLabel";
		1409
		1410	for (var i = 0; i < ticks.length; ++i) {
		1411
		1412	var t = ticks[i];
		1413
		1414	if (!t.label)
		1415	continue;
		1416
		1417	var info = surface.getTextInfo(layer, t.label, font, null, maxWidth);
		1418
		1419	labelWidth = Math.max(labelWidth, info.width);
		1420	labelHeight = Math.max(labelHeight, info.height);
		1421	}
		1422
		1423	axis.labelWidth = opts.labelWidth \|\| labelWidth;
		1424	axis.labelHeight = opts.labelHeight \|\| labelHeight;
		1425	}
		1426
		1427	function allocateAxisBoxFirstPhase(axis) {
		1428	// find the bounding box of the axis by looking at label
		1429	// widths/heights and ticks, make room by diminishing the
		1430	// plotOffset; this first phase only looks at one
		1431	// dimension per axis, the other dimension depends on the
		1432	// other axes so will have to wait
		1433
		1434	var lw = axis.labelWidth,
		1435	lh = axis.labelHeight,
		1436	pos = axis.options.position,
		1437	isXAxis = axis.direction === "x",
		1438	tickLength = axis.options.tickLength,
		1439	axisMargin = options.grid.axisMargin,
		1440	padding = options.grid.labelMargin,
		1441	innermost = true,
		1442	outermost = true,
		1443	first = true,
		1444	found = false;
		1445
		1446	// Determine the axis's position in its direction and on its side
		1447
		1448	$.each(isXAxis ? xaxes : yaxes, function(i, a) {
		1449	if (a && (a.show \|\| a.reserveSpace)) {
		1450	if (a === axis) {
		1451	found = true;
		1452	} else if (a.options.position === pos) {
		1453	if (found) {
		1454	outermost = false;
		1455	} else {
		1456	innermost = false;
		1457	}
		1458	}
		1459	if (!found) {
		1460	first = false;
		1461	}
		1462	}
		1463	});
		1464
		1465	// The outermost axis on each side has no margin
		1466
		1467	if (outermost) {
		1468	axisMargin = 0;
		1469	}
		1470
		1471	// The ticks for the first axis in each direction stretch across
		1472
		1473	if (tickLength == null) {
		1474	tickLength = first ? "full" : 5;
		1475	}
		1476
		1477	if (!isNaN(+tickLength))
		1478	padding += +tickLength;
		1479
		1480	if (isXAxis) {
		1481	lh += padding;
		1482
		1483	if (pos == "bottom") {
		1484	plotOffset.bottom += lh + axisMargin;
		1485	axis.box = { top: surface.height - plotOffset.bottom, height: lh };
		1486	}
		1487	else {
		1488	axis.box = { top: plotOffset.top + axisMargin, height: lh };
		1489	plotOffset.top += lh + axisMargin;
		1490	}
		1491	}
		1492	else {
		1493	lw += padding;
		1494
		1495	if (pos == "left") {
		1496	axis.box = { left: plotOffset.left + axisMargin, width: lw };
		1497	plotOffset.left += lw + axisMargin;
		1498	}
		1499	else {
		1500	plotOffset.right += lw + axisMargin;
		1501	axis.box = { left: surface.width - plotOffset.right, width: lw };
		1502	}
		1503	}
		1504
		1505	// save for future reference
		1506	axis.position = pos;
		1507	axis.tickLength = tickLength;
		1508	axis.box.padding = padding;
		1509	axis.innermost = innermost;
		1510	}
		1511
		1512	function allocateAxisBoxSecondPhase(axis) {
		1513	// now that all axis boxes have been placed in one
		1514	// dimension, we can set the remaining dimension coordinates
		1515	if (axis.direction == "x") {
		1516	axis.box.left = plotOffset.left - axis.labelWidth / 2;
		1517	axis.box.width = surface.width - plotOffset.left - plotOffset.right + axis.labelWidth;
		1518	}
		1519	else {
		1520	axis.box.top = plotOffset.top - axis.labelHeight / 2;
		1521	axis.box.height = surface.height - plotOffset.bottom - plotOffset.top + axis.labelHeight;
		1522	}
		1523	}
		1524
		1525	function adjustLayoutForThingsStickingOut() {
		1526	// possibly adjust plot offset to ensure everything stays
		1527	// inside the canvas and isn't clipped off
		1528
		1529	var minMargin = options.grid.minBorderMargin,
		1530	axis, i;
		1531
		1532	// check stuff from the plot (FIXME: this should just read
		1533	// a value from the series, otherwise it's impossible to
		1534	// customize)
		1535	if (minMargin == null) {
		1536	minMargin = 0;
		1537	for (i = 0; i < series.length; ++i)
		1538	minMargin = Math.max(minMargin, 2 * (series[i].points.radius + series[i].points.lineWidth/2));
		1539	}
		1540
		1541	var margins = {
		1542	left: minMargin,
		1543	right: minMargin,
		1544	top: minMargin,
		1545	bottom: minMargin
		1546	};
		1547
		1548	// check axis labels, note we don't check the actual
		1549	// labels but instead use the overall width/height to not
		1550	// jump as much around with replots
		1551	$.each(allAxes(), function (_, axis) {
		1552	if (axis.reserveSpace && axis.ticks && axis.ticks.length) {
		1553	if (axis.direction === "x") {
		1554	margins.left = Math.max(margins.left, axis.labelWidth / 2);
		1555	margins.right = Math.max(margins.right, axis.labelWidth / 2);
		1556	} else {
		1557	margins.bottom = Math.max(margins.bottom, axis.labelHeight / 2);
		1558	margins.top = Math.max(margins.top, axis.labelHeight / 2);
		1559	}
		1560	}
		1561	});
		1562
		1563	plotOffset.left = Math.ceil(Math.max(margins.left, plotOffset.left));
		1564	plotOffset.right = Math.ceil(Math.max(margins.right, plotOffset.right));
		1565	plotOffset.top = Math.ceil(Math.max(margins.top, plotOffset.top));
		1566	plotOffset.bottom = Math.ceil(Math.max(margins.bottom, plotOffset.bottom));
		1567	}
		1568
		1569	function setupGrid() {
		1570	var i, axes = allAxes(), showGrid = options.grid.show;
		1571
		1572	// Initialize the plot's offset from the edge of the canvas
		1573
		1574	for (var a in plotOffset) {
		1575	var margin = options.grid.margin \|\| 0;
		1576	plotOffset[a] = typeof margin == "number" ? margin : margin[a] \|\| 0;
		1577	}
		1578
		1579	executeHooks(hooks.processOffset, [plotOffset]);
		1580
		1581	// If the grid is visible, add its border width to the offset
		1582
		1583	for (var a in plotOffset) {
		1584	if(typeof(options.grid.borderWidth) == "object") {
		1585	plotOffset[a] += showGrid ? options.grid.borderWidth[a] : 0;
		1586	}
		1587	else {
		1588	plotOffset[a] += showGrid ? options.grid.borderWidth : 0;
		1589	}
		1590	}
		1591
		1592	$.each(axes, function (_, axis) {
		1593	var axisOpts = axis.options;
		1594	axis.show = axisOpts.show == null ? axis.used : axisOpts.show;
		1595	axis.reserveSpace = axisOpts.reserveSpace == null ? axis.show : axisOpts.reserveSpace;
		1596	setRange(axis);
		1597	});
		1598
		1599	if (showGrid) {
		1600
		1601	var allocatedAxes = $.grep(axes, function (axis) {
		1602	return axis.show \|\| axis.reserveSpace;
		1603	});
		1604
		1605	$.each(allocatedAxes, function (_, axis) {
		1606	// make the ticks
		1607	setupTickGeneration(axis);
		1608	setTicks(axis);
		1609	snapRangeToTicks(axis, axis.ticks);
		1610	// find labelWidth/Height for axis
		1611	measureTickLabels(axis);
		1612	});
		1613
		1614	// with all dimensions calculated, we can compute the
		1615	// axis bounding boxes, start from the outside
		1616	// (reverse order)
		1617	for (i = allocatedAxes.length - 1; i >= 0; --i)
		1618	allocateAxisBoxFirstPhase(allocatedAxes[i]);
		1619
		1620	// make sure we've got enough space for things that
		1621	// might stick out
		1622	adjustLayoutForThingsStickingOut();
		1623
		1624	$.each(allocatedAxes, function (_, axis) {
		1625	allocateAxisBoxSecondPhase(axis);
		1626	});
		1627	}
		1628
		1629	plotWidth = surface.width - plotOffset.left - plotOffset.right;
		1630	plotHeight = surface.height - plotOffset.bottom - plotOffset.top;
		1631
		1632	// now we got the proper plot dimensions, we can compute the scaling
		1633	$.each(axes, function (_, axis) {
		1634	setTransformationHelpers(axis);
		1635	});
		1636
		1637	if (showGrid) {
		1638	drawAxisLabels();
		1639	}
		1640
		1641	insertLegend();
		1642	}
		1643
		1644	function setRange(axis) {
		1645	var opts = axis.options,
		1646	min = +(opts.min != null ? opts.min : axis.datamin),
		1647	max = +(opts.max != null ? opts.max : axis.datamax),
		1648	delta = max - min;
		1649
		1650	if (delta == 0.0) {
		1651	// degenerate case
		1652	var widen = max == 0 ? 1 : 0.01;
		1653
		1654	if (opts.min == null)
		1655	min -= widen;
		1656	// always widen max if we couldn't widen min to ensure we
		1657	// don't fall into min == max which doesn't work
		1658	if (opts.max == null \|\| opts.min != null)
		1659	max += widen;
		1660	}
		1661	else {
		1662	// consider autoscaling
		1663	var margin = opts.autoscaleMargin;
		1664	if (margin != null) {
		1665	if (opts.min == null) {
		1666	min -= delta * margin;
		1667	// make sure we don't go below zero if all values
		1668	// are positive
		1669	if (min < 0 && axis.datamin != null && axis.datamin >= 0)
		1670	min = 0;
		1671	}
		1672	if (opts.max == null) {
		1673	max += delta * margin;
		1674	if (max > 0 && axis.datamax != null && axis.datamax <= 0)
		1675	max = 0;
		1676	}
		1677	}
		1678	}
		1679	axis.min = min;
		1680	axis.max = max;
		1681	}
		1682
		1683	function setupTickGeneration(axis) {
		1684	var opts = axis.options;
		1685
		1686	// estimate number of ticks
		1687	var noTicks;
		1688	if (typeof opts.ticks == "number" && opts.ticks > 0)
		1689	noTicks = opts.ticks;
		1690	else
		1691	// heuristic based on the model a*sqrt(x) fitted to
		1692	// some data points that seemed reasonable
		1693	noTicks = 0.3 * Math.sqrt(axis.direction == "x" ? surface.width : surface.height);
		1694
		1695	var delta = (axis.max - axis.min) / noTicks,
		1696	dec = -Math.floor(Math.log(delta) / Math.LN10),
		1697	maxDec = opts.tickDecimals;
		1698
		1699	if (maxDec != null && dec > maxDec) {
		1700	dec = maxDec;
		1701	}
		1702
		1703	var magn = Math.pow(10, -dec),
		1704	norm = delta / magn, // norm is between 1.0 and 10.0
		1705	size;
		1706
		1707	if (norm < 1.5) {
		1708	size = 1;
		1709	} else if (norm < 3) {
		1710	size = 2;
		1711	// special case for 2.5, requires an extra decimal
		1712	if (norm > 2.25 && (maxDec == null \|\| dec + 1 <= maxDec)) {
		1713	size = 2.5;
		1714	++dec;
		1715	}
		1716	} else if (norm < 7.5) {
		1717	size = 5;
		1718	} else {
		1719	size = 10;
		1720	}
		1721
		1722	size *= magn;
		1723
		1724	if (opts.minTickSize != null && size < opts.minTickSize) {
		1725	size = opts.minTickSize;
		1726	}
		1727
		1728	axis.delta = delta;
		1729	axis.tickDecimals = Math.max(0, maxDec != null ? maxDec : dec);
		1730	axis.tickSize = opts.tickSize \|\| size;
		1731
		1732	// Time mode was moved to a plug-in in 0.8, and since so many people use it
		1733	// we'll add an especially friendly reminder to make sure they included it.
		1734
		1735	if (opts.mode == "time" && !axis.tickGenerator) {
		1736	throw new Error("Time mode requires the flot.time plugin.");
		1737	}
		1738
		1739	// Flot supports base-10 axes; any other mode else is handled by a plug-in,
		1740	// like flot.time.js.
		1741
		1742	if (!axis.tickGenerator) {
		1743
		1744	axis.tickGenerator = function (axis) {
		1745
		1746	var ticks = [],
		1747	start = floorInBase(axis.min, axis.tickSize),
		1748	i = 0,
		1749	v = Number.NaN,
		1750	prev;
		1751
		1752	do {
		1753	prev = v;
		1754	v = start + i * axis.tickSize;
		1755	ticks.push(v);
		1756	++i;
		1757	} while (v < axis.max && v != prev);
		1758	return ticks;
		1759	};
		1760
		1761	axis.tickFormatter = function (value, axis) {
		1762
		1763	var factor = axis.tickDecimals ? Math.pow(10, axis.tickDecimals) : 1;
		1764	var formatted = "" + Math.round(value * factor) / factor;
		1765
		1766	// If tickDecimals was specified, ensure that we have exactly that
		1767	// much precision; otherwise default to the value's own precision.
		1768
		1769	if (axis.tickDecimals != null) {
		1770	var decimal = formatted.indexOf(".");
		1771	var precision = decimal == -1 ? 0 : formatted.length - decimal - 1;
		1772	if (precision < axis.tickDecimals) {
		1773	return (precision ? formatted : formatted + ".") + ("" + factor).substr(1, axis.tickDecimals - precision);
		1774	}
		1775	}
		1776
		1777	return formatted;
		1778	};
		1779	}
		1780
		1781	if ($.isFunction(opts.tickFormatter))
		1782	axis.tickFormatter = function (v, axis) { return "" + opts.tickFormatter(v, axis); };
		1783
		1784	if (opts.alignTicksWithAxis != null) {
		1785	var otherAxis = (axis.direction == "x" ? xaxes : yaxes)[opts.alignTicksWithAxis - 1];
		1786	if (otherAxis && otherAxis.used && otherAxis != axis) {
		1787	// consider snapping min/max to outermost nice ticks
		1788	var niceTicks = axis.tickGenerator(axis);
		1789	if (niceTicks.length > 0) {
		1790	if (opts.min == null)
		1791	axis.min = Math.min(axis.min, niceTicks[0]);
		1792	if (opts.max == null && niceTicks.length > 1)
		1793	axis.max = Math.max(axis.max, niceTicks[niceTicks.length - 1]);
		1794	}
		1795
		1796	axis.tickGenerator = function (axis) {
		1797	// copy ticks, scaled to this axis
		1798	var ticks = [], v, i;
		1799	for (i = 0; i < otherAxis.ticks.length; ++i) {
		1800	v = (otherAxis.ticks[i].v - otherAxis.min) / (otherAxis.max - otherAxis.min);
		1801	v = axis.min + v * (axis.max - axis.min);
		1802	ticks.push(v);
		1803	}
		1804	return ticks;
		1805	};
		1806
		1807	// we might need an extra decimal since forced
		1808	// ticks don't necessarily fit naturally
		1809	if (!axis.mode && opts.tickDecimals == null) {
		1810	var extraDec = Math.max(0, -Math.floor(Math.log(axis.delta) / Math.LN10) + 1),
		1811	ts = axis.tickGenerator(axis);
		1812
		1813	// only proceed if the tick interval rounded
		1814	// with an extra decimal doesn't give us a
		1815	// zero at end
		1816	if (!(ts.length > 1 && /\..*0$/.test((ts[1] - ts[0]).toFixed(extraDec))))
		1817	axis.tickDecimals = extraDec;
		1818	}
		1819	}
		1820	}
		1821	}
		1822
		1823	function setTicks(axis) {
		1824	var oticks = axis.options.ticks, ticks = [];
		1825	if (oticks == null \|\| (typeof oticks == "number" && oticks > 0))
		1826	ticks = axis.tickGenerator(axis);
		1827	else if (oticks) {
		1828	if ($.isFunction(oticks))
		1829	// generate the ticks
		1830	ticks = oticks(axis);
		1831	else
		1832	ticks = oticks;
		1833	}
		1834
		1835	// clean up/labelify the supplied ticks, copy them over
		1836	var i, v;
		1837	axis.ticks = [];
		1838	for (i = 0; i < ticks.length; ++i) {
		1839	var label = null;
		1840	var t = ticks[i];
		1841	if (typeof t == "object") {
		1842	v = +t[0];
		1843	if (t.length > 1)
		1844	label = t[1];
		1845	}
		1846	else
		1847	v = +t;
		1848	if (label == null)
		1849	label = axis.tickFormatter(v, axis);
		1850	if (!isNaN(v))
		1851	axis.ticks.push({ v: v, label: label });
		1852	}
		1853	}
		1854
		1855	function snapRangeToTicks(axis, ticks) {
		1856	if (axis.options.autoscaleMargin && ticks.length > 0) {
		1857	// snap to ticks
		1858	if (axis.options.min == null)
		1859	axis.min = Math.min(axis.min, ticks[0].v);
		1860	if (axis.options.max == null && ticks.length > 1)
		1861	axis.max = Math.max(axis.max, ticks[ticks.length - 1].v);
		1862	}
		1863	}
		1864
		1865	function draw() {
		1866
		1867	surface.clear();
		1868
		1869	executeHooks(hooks.drawBackground, [ctx]);
		1870
		1871	var grid = options.grid;
		1872
		1873	// draw background, if any
		1874	if (grid.show && grid.backgroundColor)
		1875	drawBackground();
		1876
		1877	if (grid.show && !grid.aboveData) {
		1878	drawGrid();
		1879	}
		1880
		1881	for (var i = 0; i < series.length; ++i) {
		1882	executeHooks(hooks.drawSeries, [ctx, series[i]]);
		1883	drawSeries(series[i]);
		1884	}
		1885
		1886	executeHooks(hooks.draw, [ctx]);
		1887
		1888	if (grid.show && grid.aboveData) {
		1889	drawGrid();
		1890	}
		1891
		1892	surface.render();
		1893
		1894	// A draw implies that either the axes or data have changed, so we
		1895	// should probably update the overlay highlights as well.
		1896
		1897	triggerRedrawOverlay();
		1898	}
		1899
		1900	function extractRange(ranges, coord) {
		1901	var axis, from, to, key, axes = allAxes();
		1902
		1903	for (var i = 0; i < axes.length; ++i) {
		1904	axis = axes[i];
		1905	if (axis.direction == coord) {
		1906	key = coord + axis.n + "axis";
		1907	if (!ranges[key] && axis.n == 1)
		1908	key = coord + "axis"; // support x1axis as xaxis
		1909	if (ranges[key]) {
		1910	from = ranges[key].from;
		1911	to = ranges[key].to;
		1912	break;
		1913	}
		1914	}
		1915	}
		1916
		1917	// backwards-compat stuff - to be removed in future
		1918	if (!ranges[key]) {
		1919	axis = coord == "x" ? xaxes[0] : yaxes[0];
		1920	from = ranges[coord + "1"];
		1921	to = ranges[coord + "2"];
		1922	}
		1923
		1924	// auto-reverse as an added bonus
		1925	if (from != null && to != null && from > to) {
		1926	var tmp = from;
		1927	from = to;
		1928	to = tmp;
		1929	}
		1930
		1931	return { from: from, to: to, axis: axis };
		1932	}
		1933
		1934	function drawBackground() {
		1935	ctx.save();
		1936	ctx.translate(plotOffset.left, plotOffset.top);
		1937
		1938	ctx.fillStyle = getColorOrGradient(options.grid.backgroundColor, plotHeight, 0, "rgba(255, 255, 255, 0)");
		1939	ctx.fillRect(0, 0, plotWidth, plotHeight);
		1940	ctx.restore();
		1941	}
		1942
		1943	function drawGrid() {
		1944	var i, axes, bw, bc;
		1945
		1946	ctx.save();
		1947	ctx.translate(plotOffset.left, plotOffset.top);
		1948
		1949	// draw markings
		1950	var markings = options.grid.markings;
		1951	if (markings) {
		1952	if ($.isFunction(markings)) {
		1953	axes = plot.getAxes();
		1954	// xmin etc. is backwards compatibility, to be
		1955	// removed in the future
		1956	axes.xmin = axes.xaxis.min;
		1957	axes.xmax = axes.xaxis.max;
		1958	axes.ymin = axes.yaxis.min;
		1959	axes.ymax = axes.yaxis.max;
		1960
		1961	markings = markings(axes);
		1962	}
		1963
		1964	for (i = 0; i < markings.length; ++i) {
		1965	var m = markings[i],
		1966	xrange = extractRange(m, "x"),
		1967	yrange = extractRange(m, "y");
		1968
		1969	// fill in missing
		1970	if (xrange.from == null)
		1971	xrange.from = xrange.axis.min;
		1972	if (xrange.to == null)
		1973	xrange.to = xrange.axis.max;
		1974	if (yrange.from == null)
		1975	yrange.from = yrange.axis.min;
		1976	if (yrange.to == null)
		1977	yrange.to = yrange.axis.max;
		1978
		1979	// clip
		1980	if (xrange.to < xrange.axis.min \|\| xrange.from > xrange.axis.max \|\|
		1981	yrange.to < yrange.axis.min \|\| yrange.from > yrange.axis.max)
		1982	continue;
		1983
		1984	xrange.from = Math.max(xrange.from, xrange.axis.min);
		1985	xrange.to = Math.min(xrange.to, xrange.axis.max);
		1986	yrange.from = Math.max(yrange.from, yrange.axis.min);
		1987	yrange.to = Math.min(yrange.to, yrange.axis.max);
		1988
		1989	var xequal = xrange.from === xrange.to,
		1990	yequal = yrange.from === yrange.to;
		1991
		1992	if (xequal && yequal) {
		1993	continue;
		1994	}
		1995
		1996	// then draw
		1997	xrange.from = Math.floor(xrange.axis.p2c(xrange.from));
		1998	xrange.to = Math.floor(xrange.axis.p2c(xrange.to));
		1999	yrange.from = Math.floor(yrange.axis.p2c(yrange.from));
		2000	yrange.to = Math.floor(yrange.axis.p2c(yrange.to));
		2001
		2002	if (xequal \|\| yequal) {
		2003	var lineWidth = m.lineWidth \|\| options.grid.markingsLineWidth,
		2004	subPixel = lineWidth % 2 ? 0.5 : 0;
		2005	ctx.beginPath();
		2006	ctx.strokeStyle = m.color \|\| options.grid.markingsColor;
		2007	ctx.lineWidth = lineWidth;
		2008	if (xequal) {
		2009	ctx.moveTo(xrange.to + subPixel, yrange.from);
		2010	ctx.lineTo(xrange.to + subPixel, yrange.to);
		2011	} else {
		2012	ctx.moveTo(xrange.from, yrange.to + subPixel);
		2013	ctx.lineTo(xrange.to, yrange.to + subPixel);
		2014	}
		2015	ctx.stroke();
		2016	} else {
		2017	ctx.fillStyle = m.color \|\| options.grid.markingsColor;
		2018	ctx.fillRect(xrange.from, yrange.to,
		2019	xrange.to - xrange.from,
		2020	yrange.from - yrange.to);
		2021	}
		2022	}
		2023	}
		2024
		2025	// draw the ticks
		2026	axes = allAxes();
		2027	bw = options.grid.borderWidth;
		2028
		2029	for (var j = 0; j < axes.length; ++j) {
		2030	var axis = axes[j], box = axis.box,
		2031	t = axis.tickLength, x, y, xoff, yoff;
		2032	if (!axis.show \|\| axis.ticks.length == 0)
		2033	continue;
		2034
		2035	ctx.lineWidth = 1;
		2036
		2037	// find the edges
		2038	if (axis.direction == "x") {
		2039	x = 0;
		2040	if (t == "full")
		2041	y = (axis.position == "top" ? 0 : plotHeight);
		2042	else
		2043	y = box.top - plotOffset.top + (axis.position == "top" ? box.height : 0);
		2044	}
		2045	else {
		2046	y = 0;
		2047	if (t == "full")
		2048	x = (axis.position == "left" ? 0 : plotWidth);
		2049	else
		2050	x = box.left - plotOffset.left + (axis.position == "left" ? box.width : 0);
		2051	}
		2052
		2053	// draw tick bar
		2054	if (!axis.innermost) {
		2055	ctx.strokeStyle = axis.options.color;
		2056	ctx.beginPath();
		2057	xoff = yoff = 0;
		2058	if (axis.direction == "x")
		2059	xoff = plotWidth + 1;
		2060	else
		2061	yoff = plotHeight + 1;
		2062
		2063	if (ctx.lineWidth == 1) {
		2064	if (axis.direction == "x") {
		2065	y = Math.floor(y) + 0.5;
		2066	} else {
		2067	x = Math.floor(x) + 0.5;
		2068	}
		2069	}
		2070
		2071	ctx.moveTo(x, y);
		2072	ctx.lineTo(x + xoff, y + yoff);
		2073	ctx.stroke();
		2074	}
		2075
		2076	// draw ticks
		2077
		2078	ctx.strokeStyle = axis.options.tickColor;
		2079
		2080	ctx.beginPath();
		2081	for (i = 0; i < axis.ticks.length; ++i) {
		2082	var v = axis.ticks[i].v;
		2083
		2084	xoff = yoff = 0;
		2085
		2086	if (isNaN(v) \|\| v < axis.min \|\| v > axis.max
		2087	// skip those lying on the axes if we got a border
		2088	\|\| (t == "full"
		2089	&& ((typeof bw == "object" && bw[axis.position] > 0) \|\| bw > 0)
		2090	&& (v == axis.min \|\| v == axis.max)))
		2091	continue;
		2092
		2093	if (axis.direction == "x") {
		2094	x = axis.p2c(v);
		2095	yoff = t == "full" ? -plotHeight : t;
		2096
		2097	if (axis.position == "top")
		2098	yoff = -yoff;
		2099	}
		2100	else {
		2101	y = axis.p2c(v);
		2102	xoff = t == "full" ? -plotWidth : t;
		2103
		2104	if (axis.position == "left")
		2105	xoff = -xoff;
		2106	}
		2107
		2108	if (ctx.lineWidth == 1) {
		2109	if (axis.direction == "x")
		2110	x = Math.floor(x) + 0.5;
		2111	else
		2112	y = Math.floor(y) + 0.5;
		2113	}
		2114
		2115	ctx.moveTo(x, y);
		2116	ctx.lineTo(x + xoff, y + yoff);
		2117	}
		2118
		2119	ctx.stroke();
		2120	}
		2121
		2122
		2123	// draw border
		2124	if (bw) {
		2125	// If either borderWidth or borderColor is an object, then draw the border
		2126	// line by line instead of as one rectangle
		2127	bc = options.grid.borderColor;
		2128	if(typeof bw == "object" \|\| typeof bc == "object") {
		2129	if (typeof bw !== "object") {
		2130	bw = {top: bw, right: bw, bottom: bw, left: bw};
		2131	}
		2132	if (typeof bc !== "object") {
		2133	bc = {top: bc, right: bc, bottom: bc, left: bc};
		2134	}
		2135
		2136	if (bw.top > 0) {
		2137	ctx.strokeStyle = bc.top;
		2138	ctx.lineWidth = bw.top;
		2139	ctx.beginPath();
		2140	ctx.moveTo(0 - bw.left, 0 - bw.top/2);
		2141	ctx.lineTo(plotWidth, 0 - bw.top/2);
		2142	ctx.stroke();
		2143	}
		2144
		2145	if (bw.right > 0) {
		2146	ctx.strokeStyle = bc.right;
		2147	ctx.lineWidth = bw.right;
		2148	ctx.beginPath();
		2149	ctx.moveTo(plotWidth + bw.right / 2, 0 - bw.top);
		2150	ctx.lineTo(plotWidth + bw.right / 2, plotHeight);
		2151	ctx.stroke();
		2152	}
		2153
		2154	if (bw.bottom > 0) {
		2155	ctx.strokeStyle = bc.bottom;
		2156	ctx.lineWidth = bw.bottom;
		2157	ctx.beginPath();
		2158	ctx.moveTo(plotWidth + bw.right, plotHeight + bw.bottom / 2);
		2159	ctx.lineTo(0, plotHeight + bw.bottom / 2);
		2160	ctx.stroke();
		2161	}
		2162
		2163	if (bw.left > 0) {
		2164	ctx.strokeStyle = bc.left;
		2165	ctx.lineWidth = bw.left;
		2166	ctx.beginPath();
		2167	ctx.moveTo(0 - bw.left/2, plotHeight + bw.bottom);
		2168	ctx.lineTo(0- bw.left/2, 0);
		2169	ctx.stroke();
		2170	}
		2171	}
		2172	else {
		2173	ctx.lineWidth = bw;
		2174	ctx.strokeStyle = options.grid.borderColor;
		2175	ctx.strokeRect(-bw/2, -bw/2, plotWidth + bw, plotHeight + bw);
		2176	}
		2177	}
		2178
		2179	ctx.restore();
		2180	}
		2181
		2182	function drawAxisLabels() {
		2183
		2184	$.each(allAxes(), function (_, axis) {
		2185	var box = axis.box,
		2186	legacyStyles = axis.direction + "Axis " + axis.direction + axis.n + "Axis",
		2187	layer = "flot-" + axis.direction + "-axis flot-" + axis.direction + axis.n + "-axis " + legacyStyles,
		2188	font = axis.options.font \|\| "flot-tick-label tickLabel",
		2189	tick, x, y, halign, valign;
		2190
		2191	// Remove text before checking for axis.show and ticks.length;
		2192	// otherwise plugins, like flot-tickrotor, that draw their own
		2193	// tick labels will end up with both theirs and the defaults.
		2194
		2195	surface.removeText(layer);
		2196
		2197	if (!axis.show \|\| axis.ticks.length == 0)
		2198	return;
		2199
		2200	for (var i = 0; i < axis.ticks.length; ++i) {
		2201
		2202	tick = axis.ticks[i];
		2203	if (!tick.label \|\| tick.v < axis.min \|\| tick.v > axis.max)
		2204	continue;
		2205
		2206	if (axis.direction == "x") {
		2207	halign = "center";
		2208	x = plotOffset.left + axis.p2c(tick.v);
		2209	if (axis.position == "bottom") {
		2210	y = box.top + box.padding;
		2211	} else {
		2212	y = box.top + box.height - box.padding;
		2213	valign = "bottom";
		2214	}
		2215	} else {
		2216	valign = "middle";
		2217	y = plotOffset.top + axis.p2c(tick.v);
		2218	if (axis.position == "left") {
		2219	x = box.left + box.width - box.padding;
		2220	halign = "right";
		2221	} else {
		2222	x = box.left + box.padding;
		2223	}
		2224	}
		2225
		2226	surface.addText(layer, x, y, tick.label, font, null, null, halign, valign);
		2227	}
		2228	});
		2229	}
		2230
		2231	function drawSeries(series) {
		2232	if (series.lines.show)
		2233	drawSeriesLines(series);
		2234	if (series.bars.show)
		2235	drawSeriesBars(series);
		2236	if (series.points.show)
		2237	drawSeriesPoints(series);
		2238	}
		2239
		2240	function drawSeriesLines(series) {
		2241	function plotLine(datapoints, xoffset, yoffset, axisx, axisy) {
		2242	var points = datapoints.points,
		2243	ps = datapoints.pointsize,
		2244	prevx = null, prevy = null;
		2245
		2246	ctx.beginPath();
		2247	for (var i = ps; i < points.length; i += ps) {
		2248	var x1 = points[i - ps], y1 = points[i - ps + 1],
		2249	x2 = points[i], y2 = points[i + 1];
		2250
		2251	if (x1 == null \|\| x2 == null)
		2252	continue;
		2253
		2254	// clip with ymin
		2255	if (y1 <= y2 && y1 < axisy.min) {
		2256	if (y2 < axisy.min)
		2257	continue; // line segment is outside
		2258	// compute new intersection point
		2259	x1 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1;
		2260	y1 = axisy.min;
		2261	}
		2262	else if (y2 <= y1 && y2 < axisy.min) {
		2263	if (y1 < axisy.min)
		2264	continue;
		2265	x2 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1;
		2266	y2 = axisy.min;
		2267	}
		2268
		2269	// clip with ymax
		2270	if (y1 >= y2 && y1 > axisy.max) {
		2271	if (y2 > axisy.max)
		2272	continue;
		2273	x1 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1;
		2274	y1 = axisy.max;
		2275	}
		2276	else if (y2 >= y1 && y2 > axisy.max) {
		2277	if (y1 > axisy.max)
		2278	continue;
		2279	x2 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1;
		2280	y2 = axisy.max;
		2281	}
		2282
		2283	// clip with xmin
		2284	if (x1 <= x2 && x1 < axisx.min) {
		2285	if (x2 < axisx.min)
		2286	continue;
		2287	y1 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1;
		2288	x1 = axisx.min;
		2289	}
		2290	else if (x2 <= x1 && x2 < axisx.min) {
		2291	if (x1 < axisx.min)
		2292	continue;
		2293	y2 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1;
		2294	x2 = axisx.min;
		2295	}
		2296
		2297	// clip with xmax
		2298	if (x1 >= x2 && x1 > axisx.max) {
		2299	if (x2 > axisx.max)
		2300	continue;
		2301	y1 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1;
		2302	x1 = axisx.max;
		2303	}
		2304	else if (x2 >= x1 && x2 > axisx.max) {
		2305	if (x1 > axisx.max)
		2306	continue;
		2307	y2 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1;
		2308	x2 = axisx.max;
		2309	}
		2310
		2311	if (x1 != prevx \|\| y1 != prevy)
		2312	ctx.moveTo(axisx.p2c(x1) + xoffset, axisy.p2c(y1) + yoffset);
		2313
		2314	prevx = x2;
		2315	prevy = y2;
		2316	ctx.lineTo(axisx.p2c(x2) + xoffset, axisy.p2c(y2) + yoffset);
		2317	}
		2318	ctx.stroke();
		2319	}
		2320
		2321	function plotLineArea(datapoints, axisx, axisy) {
		2322	var points = datapoints.points,
		2323	ps = datapoints.pointsize,
		2324	bottom = Math.min(Math.max(0, axisy.min), axisy.max),
		2325	i = 0, top, areaOpen = false,
		2326	ypos = 1, segmentStart = 0, segmentEnd = 0;
		2327
		2328	// we process each segment in two turns, first forward
		2329	// direction to sketch out top, then once we hit the
		2330	// end we go backwards to sketch the bottom
		2331	while (true) {
		2332	if (ps > 0 && i > points.length + ps)
		2333	break;
		2334
		2335	i += ps; // ps is negative if going backwards
		2336
		2337	var x1 = points[i - ps],
		2338	y1 = points[i - ps + ypos],
		2339	x2 = points[i], y2 = points[i + ypos];
		2340
		2341	if (areaOpen) {
		2342	if (ps > 0 && x1 != null && x2 == null) {
		2343	// at turning point
		2344	segmentEnd = i;
		2345	ps = -ps;
		2346	ypos = 2;
		2347	continue;
		2348	}
		2349
		2350	if (ps < 0 && i == segmentStart + ps) {
		2351	// done with the reverse sweep
		2352	ctx.fill();
		2353	areaOpen = false;
		2354	ps = -ps;
		2355	ypos = 1;
		2356	i = segmentStart = segmentEnd + ps;
		2357	continue;
		2358	}
		2359	}
		2360
		2361	if (x1 == null \|\| x2 == null)
		2362	continue;
		2363
		2364	// clip x values
		2365
		2366	// clip with xmin
		2367	if (x1 <= x2 && x1 < axisx.min) {
		2368	if (x2 < axisx.min)
		2369	continue;
		2370	y1 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1;
		2371	x1 = axisx.min;
		2372	}
		2373	else if (x2 <= x1 && x2 < axisx.min) {
		2374	if (x1 < axisx.min)
		2375	continue;
		2376	y2 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1;
		2377	x2 = axisx.min;
		2378	}
		2379
		2380	// clip with xmax
		2381	if (x1 >= x2 && x1 > axisx.max) {
		2382	if (x2 > axisx.max)
		2383	continue;
		2384	y1 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1;
		2385	x1 = axisx.max;
		2386	}
		2387	else if (x2 >= x1 && x2 > axisx.max) {
		2388	if (x1 > axisx.max)
		2389	continue;
		2390	y2 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1;
		2391	x2 = axisx.max;
		2392	}
		2393
		2394	if (!areaOpen) {
		2395	// open area
		2396	ctx.beginPath();
		2397	ctx.moveTo(axisx.p2c(x1), axisy.p2c(bottom));
		2398	areaOpen = true;
		2399	}
		2400
		2401	// now first check the case where both is outside
		2402	if (y1 >= axisy.max && y2 >= axisy.max) {
		2403	ctx.lineTo(axisx.p2c(x1), axisy.p2c(axisy.max));
		2404	ctx.lineTo(axisx.p2c(x2), axisy.p2c(axisy.max));
		2405	continue;
		2406	}
		2407	else if (y1 <= axisy.min && y2 <= axisy.min) {
		2408	ctx.lineTo(axisx.p2c(x1), axisy.p2c(axisy.min));
		2409	ctx.lineTo(axisx.p2c(x2), axisy.p2c(axisy.min));
		2410	continue;
		2411	}
		2412
		2413	// else it's a bit more complicated, there might
		2414	// be a flat maxed out rectangle first, then a
		2415	// triangular cutout or reverse; to find these
		2416	// keep track of the current x values
		2417	var x1old = x1, x2old = x2;
		2418
		2419	// clip the y values, without shortcutting, we
		2420	// go through all cases in turn
		2421
		2422	// clip with ymin
		2423	if (y1 <= y2 && y1 < axisy.min && y2 >= axisy.min) {
		2424	x1 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1;
		2425	y1 = axisy.min;
		2426	}
		2427	else if (y2 <= y1 && y2 < axisy.min && y1 >= axisy.min) {
		2428	x2 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1;
		2429	y2 = axisy.min;
		2430	}
		2431
		2432	// clip with ymax
		2433	if (y1 >= y2 && y1 > axisy.max && y2 <= axisy.max) {
		2434	x1 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1;
		2435	y1 = axisy.max;
		2436	}
		2437	else if (y2 >= y1 && y2 > axisy.max && y1 <= axisy.max) {
		2438	x2 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1;
		2439	y2 = axisy.max;
		2440	}
		2441
		2442	// if the x value was changed we got a rectangle
		2443	// to fill
		2444	if (x1 != x1old) {
		2445	ctx.lineTo(axisx.p2c(x1old), axisy.p2c(y1));
		2446	// it goes to (x1, y1), but we fill that below
		2447	}
		2448
		2449	// fill triangular section, this sometimes result
		2450	// in redundant points if (x1, y1) hasn't changed
		2451	// from previous line to, but we just ignore that
		2452	ctx.lineTo(axisx.p2c(x1), axisy.p2c(y1));
		2453	ctx.lineTo(axisx.p2c(x2), axisy.p2c(y2));
		2454
		2455	// fill the other rectangle if it's there
		2456	if (x2 != x2old) {
		2457	ctx.lineTo(axisx.p2c(x2), axisy.p2c(y2));
		2458	ctx.lineTo(axisx.p2c(x2old), axisy.p2c(y2));
		2459	}
		2460	}
		2461	}
		2462
		2463	ctx.save();
		2464	ctx.translate(plotOffset.left, plotOffset.top);
		2465	ctx.lineJoin = "round";
		2466
		2467	var lw = series.lines.lineWidth,
		2468	sw = series.shadowSize;
		2469	// FIXME: consider another form of shadow when filling is turned on
		2470	if (lw > 0 && sw > 0) {
		2471	// draw shadow as a thick and thin line with transparency
		2472	ctx.lineWidth = sw;
		2473	ctx.strokeStyle = "rgba(0,0,0,0.1)";
		2474	// position shadow at angle from the mid of line
		2475	var angle = Math.PI/18;
		2476	plotLine(series.datapoints, Math.sin(angle) * (lw/2 + sw/2), Math.cos(angle) * (lw/2 + sw/2), series.xaxis, series.yaxis);
		2477	ctx.lineWidth = sw/2;
		2478	plotLine(series.datapoints, Math.sin(angle) * (lw/2 + sw/4), Math.cos(angle) * (lw/2 + sw/4), series.xaxis, series.yaxis);
		2479	}
		2480
		2481	ctx.lineWidth = lw;
		2482	ctx.strokeStyle = series.color;
		2483	var fillStyle = getFillStyle(series.lines, series.color, 0, plotHeight);
		2484	if (fillStyle) {
		2485	ctx.fillStyle = fillStyle;
		2486	plotLineArea(series.datapoints, series.xaxis, series.yaxis);
		2487	}
		2488
		2489	if (lw > 0)
		2490	plotLine(series.datapoints, 0, 0, series.xaxis, series.yaxis);
		2491	ctx.restore();
		2492	}
		2493
		2494	function drawSeriesPoints(series) {
		2495	function plotPoints(datapoints, radius, fillStyle, offset, shadow, axisx, axisy, symbol) {
		2496	var points = datapoints.points, ps = datapoints.pointsize;
		2497
		2498	for (var i = 0; i < points.length; i += ps) {
		2499	var x = points[i], y = points[i + 1];
		2500	if (x == null \|\| x < axisx.min \|\| x > axisx.max \|\| y < axisy.min \|\| y > axisy.max)
		2501	continue;
		2502
		2503	ctx.beginPath();
		2504	x = axisx.p2c(x);
		2505	y = axisy.p2c(y) + offset;
		2506	if (symbol == "circle")
		2507	ctx.arc(x, y, radius, 0, shadow ? Math.PI : Math.PI * 2, false);
		2508	else
		2509	symbol(ctx, x, y, radius, shadow);
		2510	ctx.closePath();
		2511
		2512	if (fillStyle) {
		2513	ctx.fillStyle = fillStyle;
		2514	ctx.fill();
		2515	}
		2516	ctx.stroke();
		2517	}
		2518	}
		2519
		2520	ctx.save();
		2521	ctx.translate(plotOffset.left, plotOffset.top);
		2522
		2523	var lw = series.points.lineWidth,
		2524	sw = series.shadowSize,
		2525	radius = series.points.radius,
		2526	symbol = series.points.symbol;
		2527
		2528	// If the user sets the line width to 0, we change it to a very
		2529	// small value. A line width of 0 seems to force the default of 1.
		2530	// Doing the conditional here allows the shadow setting to still be
		2531	// optional even with a lineWidth of 0.
		2532
		2533	if( lw == 0 )
		2534	lw = 0.0001;
		2535
		2536	if (lw > 0 && sw > 0) {
		2537	// draw shadow in two steps
		2538	var w = sw / 2;
		2539	ctx.lineWidth = w;
		2540	ctx.strokeStyle = "rgba(0,0,0,0.1)";
		2541	plotPoints(series.datapoints, radius, null, w + w/2, true,
		2542	series.xaxis, series.yaxis, symbol);
		2543
		2544	ctx.strokeStyle = "rgba(0,0,0,0.2)";
		2545	plotPoints(series.datapoints, radius, null, w/2, true,
		2546	series.xaxis, series.yaxis, symbol);
		2547	}
		2548
		2549	ctx.lineWidth = lw;
		2550	ctx.strokeStyle = series.color;
		2551	plotPoints(series.datapoints, radius,
		2552	getFillStyle(series.points, series.color), 0, false,
		2553	series.xaxis, series.yaxis, symbol);
		2554	ctx.restore();
		2555	}
		2556
		2557	function drawBar(x, y, b, barLeft, barRight, fillStyleCallback, axisx, axisy, c, horizontal, lineWidth) {
		2558	var left, right, bottom, top,
		2559	drawLeft, drawRight, drawTop, drawBottom,
		2560	tmp;
		2561
		2562	// in horizontal mode, we start the bar from the left
		2563	// instead of from the bottom so it appears to be
		2564	// horizontal rather than vertical
		2565	if (horizontal) {
		2566	drawBottom = drawRight = drawTop = true;
		2567	drawLeft = false;
		2568	left = b;
		2569	right = x;
		2570	top = y + barLeft;
		2571	bottom = y + barRight;
		2572
		2573	// account for negative bars
		2574	if (right < left) {
		2575	tmp = right;
		2576	right = left;
		2577	left = tmp;
		2578	drawLeft = true;
		2579	drawRight = false;
		2580	}
		2581	}
		2582	else {
		2583	drawLeft = drawRight = drawTop = true;
		2584	drawBottom = false;
		2585	left = x + barLeft;
		2586	right = x + barRight;
		2587	bottom = b;
		2588	top = y;
		2589
		2590	// account for negative bars
		2591	if (top < bottom) {
		2592	tmp = top;
		2593	top = bottom;
		2594	bottom = tmp;
		2595	drawBottom = true;
		2596	drawTop = false;
		2597	}
		2598	}
		2599
		2600	// clip
		2601	if (right < axisx.min \|\| left > axisx.max \|\|
		2602	top < axisy.min \|\| bottom > axisy.max)
		2603	return;
		2604
		2605	if (left < axisx.min) {
		2606	left = axisx.min;
		2607	drawLeft = false;
		2608	}
		2609
		2610	if (right > axisx.max) {
		2611	right = axisx.max;
		2612	drawRight = false;
		2613	}
		2614
		2615	if (bottom < axisy.min) {
		2616	bottom = axisy.min;
		2617	drawBottom = false;
		2618	}
		2619
		2620	if (top > axisy.max) {
		2621	top = axisy.max;
		2622	drawTop = false;
		2623	}
		2624
		2625	left = axisx.p2c(left);
		2626	bottom = axisy.p2c(bottom);
		2627	right = axisx.p2c(right);
		2628	top = axisy.p2c(top);
		2629
		2630	// fill the bar
		2631	if (fillStyleCallback) {
		2632	c.fillStyle = fillStyleCallback(bottom, top);
		2633	c.fillRect(left, top, right - left, bottom - top)
		2634	}
		2635
		2636	// draw outline
		2637	if (lineWidth > 0 && (drawLeft \|\| drawRight \|\| drawTop \|\| drawBottom)) {
		2638	c.beginPath();
		2639
		2640	// FIXME: inline moveTo is buggy with excanvas
		2641	c.moveTo(left, bottom);
		2642	if (drawLeft)
		2643	c.lineTo(left, top);
		2644	else
		2645	c.moveTo(left, top);
		2646	if (drawTop)
		2647	c.lineTo(right, top);
		2648	else
		2649	c.moveTo(right, top);
		2650	if (drawRight)
		2651	c.lineTo(right, bottom);
		2652	else
		2653	c.moveTo(right, bottom);
		2654	if (drawBottom)
		2655	c.lineTo(left, bottom);
		2656	else
		2657	c.moveTo(left, bottom);
		2658	c.stroke();
		2659	}
		2660	}
		2661
		2662	function drawSeriesBars(series) {
		2663	function plotBars(datapoints, barLeft, barRight, fillStyleCallback, axisx, axisy) {
		2664	var points = datapoints.points, ps = datapoints.pointsize;
		2665
		2666	for (var i = 0; i < points.length; i += ps) {
		2667	if (points[i] == null)
		2668	continue;
		2669	drawBar(points[i], points[i + 1], points[i + 2], barLeft, barRight, fillStyleCallback, axisx, axisy, ctx, series.bars.horizontal, series.bars.lineWidth);
		2670	}
		2671	}
		2672
		2673	ctx.save();
		2674	ctx.translate(plotOffset.left, plotOffset.top);
		2675
		2676	// FIXME: figure out a way to add shadows (for instance along the right edge)
		2677	ctx.lineWidth = series.bars.lineWidth;
		2678	ctx.strokeStyle = series.color;
		2679
		2680	var barLeft;
		2681
		2682	switch (series.bars.align) {
		2683	case "left":
		2684	barLeft = 0;
		2685	break;
		2686	case "right":
		2687	barLeft = -series.bars.barWidth;
		2688	break;
		2689	default:
		2690	barLeft = -series.bars.barWidth / 2;
		2691	}
		2692
		2693	var fillStyleCallback = series.bars.fill ? function (bottom, top) { return getFillStyle(series.bars, series.color, bottom, top); } : null;
		2694	plotBars(series.datapoints, barLeft, barLeft + series.bars.barWidth, fillStyleCallback, series.xaxis, series.yaxis);
		2695	ctx.restore();
		2696	}
		2697
		2698	function getFillStyle(filloptions, seriesColor, bottom, top) {
		2699	var fill = filloptions.fill;
		2700	if (!fill)
		2701	return null;
		2702
		2703	if (filloptions.fillColor)
		2704	return getColorOrGradient(filloptions.fillColor, bottom, top, seriesColor);
		2705
		2706	var c = $.color.parse(seriesColor);
		2707	c.a = typeof fill == "number" ? fill : 0.4;
		2708	c.normalize();
		2709	return c.toString();
		2710	}
		2711
		2712	function insertLegend() {
		2713
		2714	if (options.legend.container != null) {
		2715	$(options.legend.container).html("");
		2716	} else {
		2717	placeholder.find(".legend").remove();
		2718	}
		2719
		2720	if (!options.legend.show) {
		2721	return;
		2722	}
		2723
		2724	var fragments = [], entries = [], rowStarted = false,
		2725	lf = options.legend.labelFormatter, s, label;
		2726
		2727	// Build a list of legend entries, with each having a label and a color
		2728
		2729	for (var i = 0; i < series.length; ++i) {
		2730	s = series[i];
		2731	if (s.label) {
		2732	label = lf ? lf(s.label, s) : s.label;
		2733	if (label) {
		2734	entries.push({
		2735	label: label,
		2736	color: s.color
		2737	});
		2738	}
		2739	}
		2740	}
		2741
		2742	// Sort the legend using either the default or a custom comparator
		2743
		2744	if (options.legend.sorted) {
		2745	if ($.isFunction(options.legend.sorted)) {
		2746	entries.sort(options.legend.sorted);
		2747	} else if (options.legend.sorted == "reverse") {
		2748	entries.reverse();
		2749	} else {
		2750	var ascending = options.legend.sorted != "descending";
		2751	entries.sort(function(a, b) {
		2752	return a.label == b.label ? 0 : (
		2753	(a.label < b.label) != ascending ? 1 : -1 // Logical XOR
		2754	);
		2755	});
		2756	}
		2757	}
		2758
		2759	// Generate markup for the list of entries, in their final order
		2760
		2761	for (var i = 0; i < entries.length; ++i) {
		2762
		2763	var entry = entries[i];
		2764
		2765	if (i % options.legend.noColumns == 0) {
		2766	if (rowStarted)
		2767	fragments.push('</tr>');
		2768	fragments.push('<tr>');
		2769	rowStarted = true;
		2770	}
		2771
		2772	fragments.push(
		2773	'<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>' +
		2774	'<td class="legendLabel">' + entry.label + '</td>'
		2775	);
		2776	}
		2777
		2778	if (rowStarted)
		2779	fragments.push('</tr>');
		2780
		2781	if (fragments.length == 0)
		2782	return;
		2783
		2784	var table = '<table style="font-size:smaller;color:' + options.grid.color + '">' + fragments.join("") + '</table>';
		2785	if (options.legend.container != null)
		2786	$(options.legend.container).html(table);
		2787	else {
		2788	var pos = "",
		2789	p = options.legend.position,
		2790	m = options.legend.margin;
		2791	if (m[0] == null)
		2792	m = [m, m];
		2793	if (p.charAt(0) == "n")
		2794	pos += 'top:' + (m[1] + plotOffset.top) + 'px;';
		2795	else if (p.charAt(0) == "s")
		2796	pos += 'bottom:' + (m[1] + plotOffset.bottom) + 'px;';
		2797	if (p.charAt(1) == "e")
		2798	pos += 'right:' + (m[0] + plotOffset.right) + 'px;';
		2799	else if (p.charAt(1) == "w")
		2800	pos += 'left:' + (m[0] + plotOffset.left) + 'px;';
		2801	var legend = $('<div class="legend">' + table.replace('style="', 'style="position:absolute;' + pos +';') + '</div>').appendTo(placeholder);
		2802	if (options.legend.backgroundOpacity != 0.0) {
		2803	// put in the transparent background
		2804	// separately to avoid blended labels and
		2805	// label boxes
		2806	var c = options.legend.backgroundColor;
		2807	if (c == null) {
		2808	c = options.grid.backgroundColor;
		2809	if (c && typeof c == "string")
		2810	c = $.color.parse(c);
		2811	else
		2812	c = $.color.extract(legend, 'background-color');
		2813	c.a = 1;
		2814	c = c.toString();
		2815	}
		2816	var div = legend.children();
		2817	$('<div style="position:absolute;width:' + div.width() + 'px;height:' + div.height() + 'px;' + pos +'background-color:' + c + ';"> </div>').prependTo(legend).css('opacity', options.legend.backgroundOpacity);
		2818	}
		2819	}
		2820	}
		2821
		2822
		2823	// interactive features
		2824
		2825	var highlights = [],
		2826	redrawTimeout = null;
		2827
		2828	// returns the data item the mouse is over, or null if none is found
		2829	function findNearbyItem(mouseX, mouseY, seriesFilter) {
		2830	var maxDistance = options.grid.mouseActiveRadius,
		2831	smallestDistance = maxDistance * maxDistance + 1,
		2832	item = null, foundPoint = false, i, j, ps;
		2833
		2834	for (i = series.length - 1; i >= 0; --i) {
		2835	if (!seriesFilter(series[i]))
		2836	continue;
		2837
		2838	var s = series[i],
		2839	axisx = s.xaxis,
		2840	axisy = s.yaxis,
		2841	points = s.datapoints.points,
		2842	mx = axisx.c2p(mouseX), // precompute some stuff to make the loop faster
		2843	my = axisy.c2p(mouseY),
		2844	maxx = maxDistance / axisx.scale,
		2845	maxy = maxDistance / axisy.scale;
		2846
		2847	ps = s.datapoints.pointsize;
		2848	// with inverse transforms, we can't use the maxx/maxy
		2849	// optimization, sadly
		2850	if (axisx.options.inverseTransform)
		2851	maxx = Number.MAX_VALUE;
		2852	if (axisy.options.inverseTransform)
		2853	maxy = Number.MAX_VALUE;
		2854
		2855	if (s.lines.show \|\| s.points.show) {
		2856	for (j = 0; j < points.length; j += ps) {
		2857	var x = points[j], y = points[j + 1];
		2858	if (x == null)
		2859	continue;
		2860
		2861	// For points and lines, the cursor must be within a
		2862	// certain distance to the data point
		2863	if (x - mx > maxx \|\| x - mx < -maxx \|\|
		2864	y - my > maxy \|\| y - my < -maxy)
		2865	continue;
		2866
		2867	// We have to calculate distances in pixels, not in
		2868	// data units, because the scales of the axes may be different
		2869	var dx = Math.abs(axisx.p2c(x) - mouseX),
		2870	dy = Math.abs(axisy.p2c(y) - mouseY),
		2871	dist = dx * dx + dy * dy; // we save the sqrt
		2872
		2873	// use <= to ensure last point takes precedence
		2874	// (last generally means on top of)
		2875	if (dist < smallestDistance) {
		2876	smallestDistance = dist;
		2877	item = [i, j / ps];
		2878	}
		2879	}
		2880	}
		2881
		2882	if (s.bars.show && !item) { // no other point can be nearby
		2883
		2884	var barLeft, barRight;
		2885
		2886	switch (s.bars.align) {
		2887	case "left":
		2888	barLeft = 0;
		2889	break;
		2890	case "right":
		2891	barLeft = -s.bars.barWidth;
		2892	break;
		2893	default:
		2894	barLeft = -s.bars.barWidth / 2;
		2895	}
		2896
		2897	barRight = barLeft + s.bars.barWidth;
		2898
		2899	for (j = 0; j < points.length; j += ps) {
		2900	var x = points[j], y = points[j + 1], b = points[j + 2];
		2901	if (x == null)
		2902	continue;
		2903
		2904	// for a bar graph, the cursor must be inside the bar
		2905	if (series[i].bars.horizontal ?
		2906	(mx <= Math.max(b, x) && mx >= Math.min(b, x) &&
		2907	my >= y + barLeft && my <= y + barRight) :
		2908	(mx >= x + barLeft && mx <= x + barRight &&
		2909	my >= Math.min(b, y) && my <= Math.max(b, y)))
		2910	item = [i, j / ps];
		2911	}
		2912	}
		2913	}
		2914
		2915	if (item) {
		2916	i = item[0];
		2917	j = item[1];
		2918	ps = series[i].datapoints.pointsize;
		2919
		2920	return { datapoint: series[i].datapoints.points.slice(j * ps, (j + 1) * ps),
		2921	dataIndex: j,
		2922	series: series[i],
		2923	seriesIndex: i };
		2924	}
		2925
		2926	return null;
		2927	}
		2928
		2929	function onMouseMove(e) {
		2930	if (options.grid.hoverable)
		2931	triggerClickHoverEvent("plothover", e,
		2932	function (s) { return s["hoverable"] != false; });
		2933	}
		2934
		2935	function onMouseLeave(e) {
		2936	if (options.grid.hoverable)
		2937	triggerClickHoverEvent("plothover", e,
		2938	function (s) { return false; });
		2939	}
		2940
		2941	function onClick(e) {
		2942	triggerClickHoverEvent("plotclick", e,
		2943	function (s) { return s["clickable"] != false; });
		2944	}
		2945
		2946	// trigger click or hover event (they send the same parameters
		2947	// so we share their code)
		2948	function triggerClickHoverEvent(eventname, event, seriesFilter) {
		2949	var offset = eventHolder.offset(),
		2950	canvasX = event.pageX - offset.left - plotOffset.left,
		2951	canvasY = event.pageY - offset.top - plotOffset.top,
		2952	pos = canvasToAxisCoords({ left: canvasX, top: canvasY });
		2953
		2954	pos.pageX = event.pageX;
		2955	pos.pageY = event.pageY;
		2956
		2957	var item = findNearbyItem(canvasX, canvasY, seriesFilter);
		2958
		2959	if (item) {
		2960	// fill in mouse pos for any listeners out there
		2961	item.pageX = parseInt(item.series.xaxis.p2c(item.datapoint[0]) + offset.left + plotOffset.left, 10);
		2962	item.pageY = parseInt(item.series.yaxis.p2c(item.datapoint[1]) + offset.top + plotOffset.top, 10);
		2963	}
		2964
		2965	if (options.grid.autoHighlight) {
		2966	// clear auto-highlights
		2967	for (var i = 0; i < highlights.length; ++i) {
		2968	var h = highlights[i];
		2969	if (h.auto == eventname &&
		2970	!(item && h.series == item.series &&
		2971	h.point[0] == item.datapoint[0] &&
		2972	h.point[1] == item.datapoint[1]))
		2973	unhighlight(h.series, h.point);
		2974	}
		2975
		2976	if (item)
		2977	highlight(item.series, item.datapoint, eventname);
		2978	}
		2979
		2980	placeholder.trigger(eventname, [ pos, item ]);
		2981	}
		2982
		2983	function triggerRedrawOverlay() {
		2984	var t = options.interaction.redrawOverlayInterval;
		2985	if (t == -1) { // skip event queue
		2986	drawOverlay();
		2987	return;
		2988	}
		2989
		2990	if (!redrawTimeout)
		2991	redrawTimeout = setTimeout(drawOverlay, t);
		2992	}
		2993
		2994	function drawOverlay() {
		2995	redrawTimeout = null;
		2996
		2997	// draw highlights
		2998	octx.save();
		2999	overlay.clear();
		3000	octx.translate(plotOffset.left, plotOffset.top);
		3001
		3002	var i, hi;
		3003	for (i = 0; i < highlights.length; ++i) {
		3004	hi = highlights[i];
		3005
		3006	if (hi.series.bars.show)
		3007	drawBarHighlight(hi.series, hi.point);
		3008	else
		3009	drawPointHighlight(hi.series, hi.point);
		3010	}
		3011	octx.restore();
		3012
		3013	executeHooks(hooks.drawOverlay, [octx]);
		3014	}
		3015
		3016	function highlight(s, point, auto) {
		3017	if (typeof s == "number")
		3018	s = series[s];
		3019
		3020	if (typeof point == "number") {
		3021	var ps = s.datapoints.pointsize;
		3022	point = s.datapoints.points.slice(ps * point, ps * (point + 1));
		3023	}
		3024
		3025	var i = indexOfHighlight(s, point);
		3026	if (i == -1) {
		3027	highlights.push({ series: s, point: point, auto: auto });
		3028
		3029	triggerRedrawOverlay();
		3030	}
		3031	else if (!auto)
		3032	highlights[i].auto = false;
		3033	}
		3034
		3035	function unhighlight(s, point) {
		3036	if (s == null && point == null) {
		3037	highlights = [];
		3038	triggerRedrawOverlay();
		3039	return;
		3040	}
		3041
		3042	if (typeof s == "number")
		3043	s = series[s];
		3044
		3045	if (typeof point == "number") {
		3046	var ps = s.datapoints.pointsize;
		3047	point = s.datapoints.points.slice(ps * point, ps * (point + 1));
		3048	}
		3049
		3050	var i = indexOfHighlight(s, point);
		3051	if (i != -1) {
		3052	highlights.splice(i, 1);
		3053
		3054	triggerRedrawOverlay();
		3055	}
		3056	}
		3057
		3058	function indexOfHighlight(s, p) {
		3059	for (var i = 0; i < highlights.length; ++i) {
		3060	var h = highlights[i];
		3061	if (h.series == s && h.point[0] == p[0]
		3062	&& h.point[1] == p[1])
		3063	return i;
		3064	}
		3065	return -1;
		3066	}
		3067
		3068	function drawPointHighlight(series, point) {
		3069	var x = point[0], y = point[1],
		3070	axisx = series.xaxis, axisy = series.yaxis,
		3071	highlightColor = (typeof series.highlightColor === "string") ? series.highlightColor : $.color.parse(series.color).scale('a', 0.5).toString();
		3072
		3073	if (x < axisx.min \|\| x > axisx.max \|\| y < axisy.min \|\| y > axisy.max)
		3074	return;
		3075
		3076	var pointRadius = series.points.radius + series.points.lineWidth / 2;
		3077	octx.lineWidth = pointRadius;
		3078	octx.strokeStyle = highlightColor;
		3079	var radius = 1.5 * pointRadius;
		3080	x = axisx.p2c(x);
		3081	y = axisy.p2c(y);
		3082
		3083	octx.beginPath();
		3084	if (series.points.symbol == "circle")
		3085	octx.arc(x, y, radius, 0, 2 * Math.PI, false);
		3086	else
		3087	series.points.symbol(octx, x, y, radius, false);
		3088	octx.closePath();
		3089	octx.stroke();
		3090	}
		3091
		3092	function drawBarHighlight(series, point) {
		3093	var highlightColor = (typeof series.highlightColor === "string") ? series.highlightColor : $.color.parse(series.color).scale('a', 0.5).toString(),
		3094	fillStyle = highlightColor,
		3095	barLeft;
		3096
		3097	switch (series.bars.align) {
		3098	case "left":
		3099	barLeft = 0;
		3100	break;
		3101	case "right":
		3102	barLeft = -series.bars.barWidth;
		3103	break;
		3104	default:
		3105	barLeft = -series.bars.barWidth / 2;
		3106	}
		3107
		3108	octx.lineWidth = series.bars.lineWidth;
		3109	octx.strokeStyle = highlightColor;
		3110
		3111	drawBar(point[0], point[1], point[2] \|\| 0, barLeft, barLeft + series.bars.barWidth,
		3112	function () { return fillStyle; }, series.xaxis, series.yaxis, octx, series.bars.horizontal, series.bars.lineWidth);
		3113	}
		3114
		3115	function getColorOrGradient(spec, bottom, top, defaultColor) {
		3116	if (typeof spec == "string")
		3117	return spec;
		3118	else {
		3119	// assume this is a gradient spec; IE currently only
		3120	// supports a simple vertical gradient properly, so that's
		3121	// what we support too
		3122	var gradient = ctx.createLinearGradient(0, top, 0, bottom);
		3123
		3124	for (var i = 0, l = spec.colors.length; i < l; ++i) {
		3125	var c = spec.colors[i];
		3126	if (typeof c != "string") {
		3127	var co = $.color.parse(defaultColor);
		3128	if (c.brightness != null)
		3129	co = co.scale('rgb', c.brightness);
		3130	if (c.opacity != null)
		3131	co.a *= c.opacity;
		3132	c = co.toString();
		3133	}
		3134	gradient.addColorStop(i / (l - 1), c);
		3135	}
		3136
		3137	return gradient;
		3138	}
		3139	}
		3140	}
		3141
		3142	// Add the plot function to the top level of the jQuery object
		3143
		3144	$.plot = function(placeholder, data, options) {
		3145	//var t0 = new Date();
		3146	var plot = new Plot($(placeholder), data, options, $.plot.plugins);
		3147	//(window.console ? console.log : alert)("time used (msecs): " + ((new Date()).getTime() - t0.getTime()));
		3148	return plot;
		3149	};
		3150
		3151	$.plot.version = "0.8.3";
		3152
		3153	$.plot.plugins = [];
		3154
		3155	// Also add the plot function as a chainable property
		3156
		3157	$.fn.plot = function(data, options) {
		3158	return this.each(function() {
		3159	$.plot(this, data, options);
		3160	});
		3161	};
		3162
		3163	// round to nearby lower multiple of base
		3164	function floorInBase(n, base) {
		3165	return base * Math.floor(n / base);
		3166	}
		3167
		3168	})(jQuery);

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(root)/DOCUMENTOS E ANALISE/telas/assets/global/plugins/flot/jquery.flot.js - Rev 1