| Index: third_party/flot/jquery.flot.js
|
| diff --git a/third_party/flot/jquery.flot.js b/third_party/flot/jquery.flot.js
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..39f3e4cf3efe5c314d7c9d1ee3626acc84c0822e
|
| --- /dev/null
|
| +++ b/third_party/flot/jquery.flot.js
|
| @@ -0,0 +1,3168 @@
|
| +/* Javascript plotting library for jQuery, version 0.8.3.
|
| +
|
| +Copyright (c) 2007-2014 IOLA and Ole Laursen.
|
| +Licensed under the MIT license.
|
| +
|
| +*/
|
| +
|
| +// first an inline dependency, jquery.colorhelpers.js, we inline it here
|
| +// for convenience
|
| +
|
| +/* Plugin for jQuery for working with colors.
|
| + *
|
| + * Version 1.1.
|
| + *
|
| + * Inspiration from jQuery color animation plugin by John Resig.
|
| + *
|
| + * Released under the MIT license by Ole Laursen, October 2009.
|
| + *
|
| + * Examples:
|
| + *
|
| + * $.color.parse("#fff").scale('rgb', 0.25).add('a', -0.5).toString()
|
| + * var c = $.color.extract($("#mydiv"), 'background-color');
|
| + * console.log(c.r, c.g, c.b, c.a);
|
| + * $.color.make(100, 50, 25, 0.4).toString() // returns "rgba(100,50,25,0.4)"
|
| + *
|
| + * Note that .scale() and .add() return the same modified object
|
| + * instead of making a new one.
|
| + *
|
| + * V. 1.1: Fix error handling so e.g. parsing an empty string does
|
| + * produce a color rather than just crashing.
|
| + */
|
| +(function($){$.color={};$.color.make=function(r,g,b,a){var o={};o.r=r||0;o.g=g||0;o.b=b||0;o.a=a!=null?a:1;o.add=function(c,d){for(var i=0;i<c.length;++i)o[c.charAt(i)]+=d;return o.normalize()};o.scale=function(c,f){for(var i=0;i<c.length;++i)o[c.charAt(i)]*=f;return o.normalize()};o.toString=function(){if(o.a>=1){return"rgb("+[o.r,o.g,o.b].join(",")+")"}else{return"rgba("+[o.r,o.g,o.b,o.a].join(",")+")"}};o.normalize=function(){function clamp(min,value,max){return value<min?min:value>max?max:value}o.r=clamp(0,parseInt(o.r),255);o.g=clamp(0,parseInt(o.g),255);o.b=clamp(0,parseInt(o.b),255);o.a=clamp(0,o.a,1);return o};o.clone=function(){return $.color.make(o.r,o.b,o.g,o.a)};return o.normalize()};$.color.extract=function(elem,css){var c;do{c=elem.css(css).toLowerCase();if(c!=""&&c!="transparent")break;elem=elem.parent()}while(elem.length&&!$.nodeName(elem.get(0),"body"));if(c=="rgba(0, 0, 0, 0)")c="transparent";return $.color.parse(c)};$.color.parse=function(str){var res,m=$.color.make;if(res=/rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(str))return m(parseInt(res[1],10),parseInt(res[2],10),parseInt(res[3],10));if(res=/rgba\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(str))return m(parseInt(res[1],10),parseInt(res[2],10),parseInt(res[3],10),parseFloat(res[4]));if(res=/rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(str))return m(parseFloat(res[1])*2.55,parseFloat(res[2])*2.55,parseFloat(res[3])*2.55);if(res=/rgba\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(str))return m(parseFloat(res[1])*2.55,parseFloat(res[2])*2.55,parseFloat(res[3])*2.55,parseFloat(res[4]));if(res=/#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(str))return m(parseInt(res[1],16),parseInt(res[2],16),parseInt(res[3],16));if(res=/#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(str))return m(parseInt(res[1]+res[1],16),parseInt(res[2]+res[2],16),parseInt(res[3]+res[3],16));var name=$.trim(str).toLowerCase();if(name=="transparent")return m(255,255,255,0);else{res=lookupColors[name]||[0,0,0];return m(res[0],res[1],res[2])}};var lookupColors={aqua:[0,255,255],azure:[240,255,255],beige:[245,245,220],black:[0,0,0],blue:[0,0,255],brown:[165,42,42],cyan:[0,255,255],darkblue:[0,0,139],darkcyan:[0,139,139],darkgrey:[169,169,169],darkgreen:[0,100,0],darkkhaki:[189,183,107],darkmagenta:[139,0,139],darkolivegreen:[85,107,47],darkorange:[255,140,0],darkorchid:[153,50,204],darkred:[139,0,0],darksalmon:[233,150,122],darkviolet:[148,0,211],fuchsia:[255,0,255],gold:[255,215,0],green:[0,128,0],indigo:[75,0,130],khaki:[240,230,140],lightblue:[173,216,230],lightcyan:[224,255,255],lightgreen:[144,238,144],lightgrey:[211,211,211],lightpink:[255,182,193],lightyellow:[255,255,224],lime:[0,255,0],magenta:[255,0,255],maroon:[128,0,0],navy:[0,0,128],olive:[128,128,0],orange:[255,165,0],pink:[255,192,203],purple:[128,0,128],violet:[128,0,128],red:[255,0,0],silver:[192,192,192],white:[255,255,255],yellow:[255,255,0]}})(jQuery);
|
| +
|
| +// the actual Flot code
|
| +(function($) {
|
| +
|
| + // Cache the prototype hasOwnProperty for faster access
|
| +
|
| + var hasOwnProperty = Object.prototype.hasOwnProperty;
|
| +
|
| + // A shim to provide 'detach' to jQuery versions prior to 1.4. Using a DOM
|
| + // operation produces the same effect as detach, i.e. removing the element
|
| + // without touching its jQuery data.
|
| +
|
| + // Do not merge this into Flot 0.9, since it requires jQuery 1.4.4+.
|
| +
|
| + if (!$.fn.detach) {
|
| + $.fn.detach = function() {
|
| + return this.each(function() {
|
| + if (this.parentNode) {
|
| + this.parentNode.removeChild( this );
|
| + }
|
| + });
|
| + };
|
| + }
|
| +
|
| + ///////////////////////////////////////////////////////////////////////////
|
| + // The Canvas object is a wrapper around an HTML5 <canvas> tag.
|
| + //
|
| + // @constructor
|
| + // @param {string} cls List of classes to apply to the canvas.
|
| + // @param {element} container Element onto which to append the canvas.
|
| + //
|
| + // Requiring a container is a little iffy, but unfortunately canvas
|
| + // operations don't work unless the canvas is attached to the DOM.
|
| +
|
| + function Canvas(cls, container) {
|
| +
|
| + var element = container.children("." + cls)[0];
|
| +
|
| + if (element == null) {
|
| +
|
| + element = document.createElement("canvas");
|
| + element.className = cls;
|
| +
|
| + $(element).css({ direction: "ltr", position: "absolute", left: 0, top: 0 })
|
| + .appendTo(container);
|
| +
|
| + // If HTML5 Canvas isn't available, fall back to [Ex|Flash]canvas
|
| +
|
| + if (!element.getContext) {
|
| + if (window.G_vmlCanvasManager) {
|
| + element = window.G_vmlCanvasManager.initElement(element);
|
| + } else {
|
| + throw new Error("Canvas is not available. If you're using IE with a fall-back such as Excanvas, then there's either a mistake in your conditional include, or the page has no DOCTYPE and is rendering in Quirks Mode.");
|
| + }
|
| + }
|
| + }
|
| +
|
| + this.element = element;
|
| +
|
| + var context = this.context = element.getContext("2d");
|
| +
|
| + // Determine the screen's ratio of physical to device-independent
|
| + // pixels. This is the ratio between the canvas width that the browser
|
| + // advertises and the number of pixels actually present in that space.
|
| +
|
| + // The iPhone 4, for example, has a device-independent width of 320px,
|
| + // but its screen is actually 640px wide. It therefore has a pixel
|
| + // ratio of 2, while most normal devices have a ratio of 1.
|
| +
|
| + var devicePixelRatio = window.devicePixelRatio || 1,
|
| + backingStoreRatio =
|
| + context.webkitBackingStorePixelRatio ||
|
| + context.mozBackingStorePixelRatio ||
|
| + context.msBackingStorePixelRatio ||
|
| + context.oBackingStorePixelRatio ||
|
| + context.backingStorePixelRatio || 1;
|
| +
|
| + this.pixelRatio = devicePixelRatio / backingStoreRatio;
|
| +
|
| + // Size the canvas to match the internal dimensions of its container
|
| +
|
| + this.resize(container.width(), container.height());
|
| +
|
| + // Collection of HTML div layers for text overlaid onto the canvas
|
| +
|
| + this.textContainer = null;
|
| + this.text = {};
|
| +
|
| + // Cache of text fragments and metrics, so we can avoid expensively
|
| + // re-calculating them when the plot is re-rendered in a loop.
|
| +
|
| + this._textCache = {};
|
| + }
|
| +
|
| + // Resizes the canvas to the given dimensions.
|
| + //
|
| + // @param {number} width New width of the canvas, in pixels.
|
| + // @param {number} width New height of the canvas, in pixels.
|
| +
|
| + Canvas.prototype.resize = function(width, height) {
|
| +
|
| + if (width <= 0 || height <= 0) {
|
| + throw new Error("Invalid dimensions for plot, width = " + width + ", height = " + height);
|
| + }
|
| +
|
| + var element = this.element,
|
| + context = this.context,
|
| + pixelRatio = this.pixelRatio;
|
| +
|
| + // Resize the canvas, increasing its density based on the display's
|
| + // pixel ratio; basically giving it more pixels without increasing the
|
| + // size of its element, to take advantage of the fact that retina
|
| + // displays have that many more pixels in the same advertised space.
|
| +
|
| + // Resizing should reset the state (excanvas seems to be buggy though)
|
| +
|
| + if (this.width != width) {
|
| + element.width = width * pixelRatio;
|
| + element.style.width = width + "px";
|
| + this.width = width;
|
| + }
|
| +
|
| + if (this.height != height) {
|
| + element.height = height * pixelRatio;
|
| + element.style.height = height + "px";
|
| + this.height = height;
|
| + }
|
| +
|
| + // Save the context, so we can reset in case we get replotted. The
|
| + // restore ensure that we're really back at the initial state, and
|
| + // should be safe even if we haven't saved the initial state yet.
|
| +
|
| + context.restore();
|
| + context.save();
|
| +
|
| + // Scale the coordinate space to match the display density; so even though we
|
| + // may have twice as many pixels, we still want lines and other drawing to
|
| + // appear at the same size; the extra pixels will just make them crisper.
|
| +
|
| + context.scale(pixelRatio, pixelRatio);
|
| + };
|
| +
|
| + // Clears the entire canvas area, not including any overlaid HTML text
|
| +
|
| + Canvas.prototype.clear = function() {
|
| + this.context.clearRect(0, 0, this.width, this.height);
|
| + };
|
| +
|
| + // Finishes rendering the canvas, including managing the text overlay.
|
| +
|
| + Canvas.prototype.render = function() {
|
| +
|
| + var cache = this._textCache;
|
| +
|
| + // For each text layer, add elements marked as active that haven't
|
| + // already been rendered, and remove those that are no longer active.
|
| +
|
| + for (var layerKey in cache) {
|
| + if (hasOwnProperty.call(cache, layerKey)) {
|
| +
|
| + var layer = this.getTextLayer(layerKey),
|
| + layerCache = cache[layerKey];
|
| +
|
| + layer.hide();
|
| +
|
| + for (var styleKey in layerCache) {
|
| + if (hasOwnProperty.call(layerCache, styleKey)) {
|
| + var styleCache = layerCache[styleKey];
|
| + for (var key in styleCache) {
|
| + if (hasOwnProperty.call(styleCache, key)) {
|
| +
|
| + var positions = styleCache[key].positions;
|
| +
|
| + for (var i = 0, position; position = positions[i]; i++) {
|
| + if (position.active) {
|
| + if (!position.rendered) {
|
| + layer.append(position.element);
|
| + position.rendered = true;
|
| + }
|
| + } else {
|
| + positions.splice(i--, 1);
|
| + if (position.rendered) {
|
| + position.element.detach();
|
| + }
|
| + }
|
| + }
|
| +
|
| + if (positions.length == 0) {
|
| + delete styleCache[key];
|
| + }
|
| + }
|
| + }
|
| + }
|
| + }
|
| +
|
| + layer.show();
|
| + }
|
| + }
|
| + };
|
| +
|
| + // Creates (if necessary) and returns the text overlay container.
|
| + //
|
| + // @param {string} classes String of space-separated CSS classes used to
|
| + // uniquely identify the text layer.
|
| + // @return {object} The jQuery-wrapped text-layer div.
|
| +
|
| + Canvas.prototype.getTextLayer = function(classes) {
|
| +
|
| + var layer = this.text[classes];
|
| +
|
| + // Create the text layer if it doesn't exist
|
| +
|
| + if (layer == null) {
|
| +
|
| + // Create the text layer container, if it doesn't exist
|
| +
|
| + if (this.textContainer == null) {
|
| + this.textContainer = $("<div class='flot-text'></div>")
|
| + .css({
|
| + position: "absolute",
|
| + top: 0,
|
| + left: 0,
|
| + bottom: 0,
|
| + right: 0,
|
| + 'font-size': "smaller",
|
| + color: "#545454"
|
| + })
|
| + .insertAfter(this.element);
|
| + }
|
| +
|
| + layer = this.text[classes] = $("<div></div>")
|
| + .addClass(classes)
|
| + .css({
|
| + position: "absolute",
|
| + top: 0,
|
| + left: 0,
|
| + bottom: 0,
|
| + right: 0
|
| + })
|
| + .appendTo(this.textContainer);
|
| + }
|
| +
|
| + return layer;
|
| + };
|
| +
|
| + // Creates (if necessary) and returns a text info object.
|
| + //
|
| + // The object looks like this:
|
| + //
|
| + // {
|
| + // width: Width of the text's wrapper div.
|
| + // height: Height of the text's wrapper div.
|
| + // element: The jQuery-wrapped HTML div containing the text.
|
| + // positions: Array of positions at which this text is drawn.
|
| + // }
|
| + //
|
| + // The positions array contains objects that look like this:
|
| + //
|
| + // {
|
| + // active: Flag indicating whether the text should be visible.
|
| + // rendered: Flag indicating whether the text is currently visible.
|
| + // element: The jQuery-wrapped HTML div containing the text.
|
| + // x: X coordinate at which to draw the text.
|
| + // y: Y coordinate at which to draw the text.
|
| + // }
|
| + //
|
| + // Each position after the first receives a clone of the original element.
|
| + //
|
| + // The idea is that that the width, height, and general 'identity' of the
|
| + // text is constant no matter where it is placed; the placements are a
|
| + // secondary property.
|
| + //
|
| + // Canvas maintains a cache of recently-used text info objects; getTextInfo
|
| + // either returns the cached element or creates a new entry.
|
| + //
|
| + // @param {string} layer A string of space-separated CSS classes uniquely
|
| + // identifying the layer containing this text.
|
| + // @param {string} text Text string to retrieve info for.
|
| + // @param {(string|object)=} font Either a string of space-separated CSS
|
| + // classes or a font-spec object, defining the text's font and style.
|
| + // @param {number=} angle Angle at which to rotate the text, in degrees.
|
| + // Angle is currently unused, it will be implemented in the future.
|
| + // @param {number=} width Maximum width of the text before it wraps.
|
| + // @return {object} a text info object.
|
| +
|
| + Canvas.prototype.getTextInfo = function(layer, text, font, angle, width) {
|
| +
|
| + var textStyle, layerCache, styleCache, info;
|
| +
|
| + // Cast the value to a string, in case we were given a number or such
|
| +
|
| + text = "" + text;
|
| +
|
| + // If the font is a font-spec object, generate a CSS font definition
|
| +
|
| + if (typeof font === "object") {
|
| + textStyle = font.style + " " + font.variant + " " + font.weight + " " + font.size + "px/" + font.lineHeight + "px " + font.family;
|
| + } else {
|
| + textStyle = font;
|
| + }
|
| +
|
| + // Retrieve (or create) the cache for the text's layer and styles
|
| +
|
| + layerCache = this._textCache[layer];
|
| +
|
| + if (layerCache == null) {
|
| + layerCache = this._textCache[layer] = {};
|
| + }
|
| +
|
| + styleCache = layerCache[textStyle];
|
| +
|
| + if (styleCache == null) {
|
| + styleCache = layerCache[textStyle] = {};
|
| + }
|
| +
|
| + info = styleCache[text];
|
| +
|
| + // If we can't find a matching element in our cache, create a new one
|
| +
|
| + if (info == null) {
|
| +
|
| + var element = $("<div></div>").html(text)
|
| + .css({
|
| + position: "absolute",
|
| + 'max-width': width,
|
| + top: -9999
|
| + })
|
| + .appendTo(this.getTextLayer(layer));
|
| +
|
| + if (typeof font === "object") {
|
| + element.css({
|
| + font: textStyle,
|
| + color: font.color
|
| + });
|
| + } else if (typeof font === "string") {
|
| + element.addClass(font);
|
| + }
|
| +
|
| + info = styleCache[text] = {
|
| + width: element.outerWidth(true),
|
| + height: element.outerHeight(true),
|
| + element: element,
|
| + positions: []
|
| + };
|
| +
|
| + element.detach();
|
| + }
|
| +
|
| + return info;
|
| + };
|
| +
|
| + // Adds a text string to the canvas text overlay.
|
| + //
|
| + // The text isn't drawn immediately; it is marked as rendering, which will
|
| + // result in its addition to the canvas on the next render pass.
|
| + //
|
| + // @param {string} layer A string of space-separated CSS classes uniquely
|
| + // identifying the layer containing this text.
|
| + // @param {number} x X coordinate at which to draw the text.
|
| + // @param {number} y Y coordinate at which to draw the text.
|
| + // @param {string} text Text string to draw.
|
| + // @param {(string|object)=} font Either a string of space-separated CSS
|
| + // classes or a font-spec object, defining the text's font and style.
|
| + // @param {number=} angle Angle at which to rotate the text, in degrees.
|
| + // Angle is currently unused, it will be implemented in the future.
|
| + // @param {number=} width Maximum width of the text before it wraps.
|
| + // @param {string=} halign Horizontal alignment of the text; either "left",
|
| + // "center" or "right".
|
| + // @param {string=} valign Vertical alignment of the text; either "top",
|
| + // "middle" or "bottom".
|
| +
|
| + Canvas.prototype.addText = function(layer, x, y, text, font, angle, width, halign, valign) {
|
| +
|
| + var info = this.getTextInfo(layer, text, font, angle, width),
|
| + positions = info.positions;
|
| +
|
| + // Tweak the div's position to match the text's alignment
|
| +
|
| + if (halign == "center") {
|
| + x -= info.width / 2;
|
| + } else if (halign == "right") {
|
| + x -= info.width;
|
| + }
|
| +
|
| + if (valign == "middle") {
|
| + y -= info.height / 2;
|
| + } else if (valign == "bottom") {
|
| + y -= info.height;
|
| + }
|
| +
|
| + // Determine whether this text already exists at this position.
|
| + // If so, mark it for inclusion in the next render pass.
|
| +
|
| + for (var i = 0, position; position = positions[i]; i++) {
|
| + if (position.x == x && position.y == y) {
|
| + position.active = true;
|
| + return;
|
| + }
|
| + }
|
| +
|
| + // If the text doesn't exist at this position, create a new entry
|
| +
|
| + // For the very first position we'll re-use the original element,
|
| + // while for subsequent ones we'll clone it.
|
| +
|
| + position = {
|
| + active: true,
|
| + rendered: false,
|
| + element: positions.length ? info.element.clone() : info.element,
|
| + x: x,
|
| + y: y
|
| + };
|
| +
|
| + positions.push(position);
|
| +
|
| + // Move the element to its final position within the container
|
| +
|
| + position.element.css({
|
| + top: Math.round(y),
|
| + left: Math.round(x),
|
| + 'text-align': halign // In case the text wraps
|
| + });
|
| + };
|
| +
|
| + // Removes one or more text strings from the canvas text overlay.
|
| + //
|
| + // If no parameters are given, all text within the layer is removed.
|
| + //
|
| + // Note that the text is not immediately removed; it is simply marked as
|
| + // inactive, which will result in its removal on the next render pass.
|
| + // This avoids the performance penalty for 'clear and redraw' behavior,
|
| + // where we potentially get rid of all text on a layer, but will likely
|
| + // add back most or all of it later, as when redrawing axes, for example.
|
| + //
|
| + // @param {string} layer A string of space-separated CSS classes uniquely
|
| + // identifying the layer containing this text.
|
| + // @param {number=} x X coordinate of the text.
|
| + // @param {number=} y Y coordinate of the text.
|
| + // @param {string=} text Text string to remove.
|
| + // @param {(string|object)=} font Either a string of space-separated CSS
|
| + // classes or a font-spec object, defining the text's font and style.
|
| + // @param {number=} angle Angle at which the text is rotated, in degrees.
|
| + // Angle is currently unused, it will be implemented in the future.
|
| +
|
| + Canvas.prototype.removeText = function(layer, x, y, text, font, angle) {
|
| + if (text == null) {
|
| + var layerCache = this._textCache[layer];
|
| + if (layerCache != null) {
|
| + for (var styleKey in layerCache) {
|
| + if (hasOwnProperty.call(layerCache, styleKey)) {
|
| + var styleCache = layerCache[styleKey];
|
| + for (var key in styleCache) {
|
| + if (hasOwnProperty.call(styleCache, key)) {
|
| + var positions = styleCache[key].positions;
|
| + for (var i = 0, position; position = positions[i]; i++) {
|
| + position.active = false;
|
| + }
|
| + }
|
| + }
|
| + }
|
| + }
|
| + }
|
| + } else {
|
| + var positions = this.getTextInfo(layer, text, font, angle).positions;
|
| + for (var i = 0, position; position = positions[i]; i++) {
|
| + if (position.x == x && position.y == y) {
|
| + position.active = false;
|
| + }
|
| + }
|
| + }
|
| + };
|
| +
|
| + ///////////////////////////////////////////////////////////////////////////
|
| + // The top-level container for the entire plot.
|
| +
|
| + function Plot(placeholder, data_, options_, plugins) {
|
| + // data is on the form:
|
| + // [ series1, series2 ... ]
|
| + // where series is either just the data as [ [x1, y1], [x2, y2], ... ]
|
| + // or { data: [ [x1, y1], [x2, y2], ... ], label: "some label", ... }
|
| +
|
| + var series = [],
|
| + options = {
|
| + // the color theme used for graphs
|
| + colors: ["#edc240", "#afd8f8", "#cb4b4b", "#4da74d", "#9440ed"],
|
| + legend: {
|
| + show: true,
|
| + noColumns: 1, // number of colums in legend table
|
| + labelFormatter: null, // fn: string -> string
|
| + labelBoxBorderColor: "#ccc", // border color for the little label boxes
|
| + container: null, // container (as jQuery object) to put legend in, null means default on top of graph
|
| + position: "ne", // position of default legend container within plot
|
| + margin: 5, // distance from grid edge to default legend container within plot
|
| + backgroundColor: null, // null means auto-detect
|
| + backgroundOpacity: 0.85, // set to 0 to avoid background
|
| + sorted: null // default to no legend sorting
|
| + },
|
| + xaxis: {
|
| + show: null, // null = auto-detect, true = always, false = never
|
| + position: "bottom", // or "top"
|
| + mode: null, // null or "time"
|
| + font: null, // null (derived from CSS in placeholder) or object like { size: 11, lineHeight: 13, style: "italic", weight: "bold", family: "sans-serif", variant: "small-caps" }
|
| + color: null, // base color, labels, ticks
|
| + tickColor: null, // possibly different color of ticks, e.g. "rgba(0,0,0,0.15)"
|
| + transform: null, // null or f: number -> number to transform axis
|
| + inverseTransform: null, // if transform is set, this should be the inverse function
|
| + min: null, // min. value to show, null means set automatically
|
| + max: null, // max. value to show, null means set automatically
|
| + autoscaleMargin: null, // margin in % to add if auto-setting min/max
|
| + ticks: null, // either [1, 3] or [[1, "a"], 3] or (fn: axis info -> ticks) or app. number of ticks for auto-ticks
|
| + tickFormatter: null, // fn: number -> string
|
| + labelWidth: null, // size of tick labels in pixels
|
| + labelHeight: null,
|
| + reserveSpace: null, // whether to reserve space even if axis isn't shown
|
| + tickLength: null, // size in pixels of ticks, or "full" for whole line
|
| + alignTicksWithAxis: null, // axis number or null for no sync
|
| + tickDecimals: null, // no. of decimals, null means auto
|
| + tickSize: null, // number or [number, "unit"]
|
| + minTickSize: null // number or [number, "unit"]
|
| + },
|
| + yaxis: {
|
| + autoscaleMargin: 0.02,
|
| + position: "left" // or "right"
|
| + },
|
| + xaxes: [],
|
| + yaxes: [],
|
| + series: {
|
| + points: {
|
| + show: false,
|
| + radius: 3,
|
| + lineWidth: 2, // in pixels
|
| + fill: true,
|
| + fillColor: "#ffffff",
|
| + symbol: "circle" // or callback
|
| + },
|
| + lines: {
|
| + // we don't put in show: false so we can see
|
| + // whether lines were actively disabled
|
| + lineWidth: 2, // in pixels
|
| + fill: false,
|
| + fillColor: null,
|
| + steps: false
|
| + // Omit 'zero', so we can later default its value to
|
| + // match that of the 'fill' option.
|
| + },
|
| + bars: {
|
| + show: false,
|
| + lineWidth: 2, // in pixels
|
| + barWidth: 1, // in units of the x axis
|
| + fill: true,
|
| + fillColor: null,
|
| + align: "left", // "left", "right", or "center"
|
| + horizontal: false,
|
| + zero: true
|
| + },
|
| + shadowSize: 3,
|
| + highlightColor: null
|
| + },
|
| + grid: {
|
| + show: true,
|
| + aboveData: false,
|
| + color: "#545454", // primary color used for outline and labels
|
| + backgroundColor: null, // null for transparent, else color
|
| + borderColor: null, // set if different from the grid color
|
| + tickColor: null, // color for the ticks, e.g. "rgba(0,0,0,0.15)"
|
| + margin: 0, // distance from the canvas edge to the grid
|
| + labelMargin: 5, // in pixels
|
| + axisMargin: 8, // in pixels
|
| + borderWidth: 2, // in pixels
|
| + minBorderMargin: null, // in pixels, null means taken from points radius
|
| + markings: null, // array of ranges or fn: axes -> array of ranges
|
| + markingsColor: "#f4f4f4",
|
| + markingsLineWidth: 2,
|
| + // interactive stuff
|
| + clickable: false,
|
| + hoverable: false,
|
| + autoHighlight: true, // highlight in case mouse is near
|
| + mouseActiveRadius: 10 // how far the mouse can be away to activate an item
|
| + },
|
| + interaction: {
|
| + redrawOverlayInterval: 1000/60 // time between updates, -1 means in same flow
|
| + },
|
| + hooks: {}
|
| + },
|
| + surface = null, // the canvas for the plot itself
|
| + overlay = null, // canvas for interactive stuff on top of plot
|
| + eventHolder = null, // jQuery object that events should be bound to
|
| + ctx = null, octx = null,
|
| + xaxes = [], yaxes = [],
|
| + plotOffset = { left: 0, right: 0, top: 0, bottom: 0},
|
| + plotWidth = 0, plotHeight = 0,
|
| + hooks = {
|
| + processOptions: [],
|
| + processRawData: [],
|
| + processDatapoints: [],
|
| + processOffset: [],
|
| + drawBackground: [],
|
| + drawSeries: [],
|
| + draw: [],
|
| + bindEvents: [],
|
| + drawOverlay: [],
|
| + shutdown: []
|
| + },
|
| + plot = this;
|
| +
|
| + // public functions
|
| + plot.setData = setData;
|
| + plot.setupGrid = setupGrid;
|
| + plot.draw = draw;
|
| + plot.getPlaceholder = function() { return placeholder; };
|
| + plot.getCanvas = function() { return surface.element; };
|
| + plot.getPlotOffset = function() { return plotOffset; };
|
| + plot.width = function () { return plotWidth; };
|
| + plot.height = function () { return plotHeight; };
|
| + plot.offset = function () {
|
| + var o = eventHolder.offset();
|
| + o.left += plotOffset.left;
|
| + o.top += plotOffset.top;
|
| + return o;
|
| + };
|
| + plot.getData = function () { return series; };
|
| + plot.getAxes = function () {
|
| + var res = {}, i;
|
| + $.each(xaxes.concat(yaxes), function (_, axis) {
|
| + if (axis)
|
| + res[axis.direction + (axis.n != 1 ? axis.n : "") + "axis"] = axis;
|
| + });
|
| + return res;
|
| + };
|
| + plot.getXAxes = function () { return xaxes; };
|
| + plot.getYAxes = function () { return yaxes; };
|
| + plot.c2p = canvasToAxisCoords;
|
| + plot.p2c = axisToCanvasCoords;
|
| + plot.getOptions = function () { return options; };
|
| + plot.highlight = highlight;
|
| + plot.unhighlight = unhighlight;
|
| + plot.triggerRedrawOverlay = triggerRedrawOverlay;
|
| + plot.pointOffset = function(point) {
|
| + return {
|
| + left: parseInt(xaxes[axisNumber(point, "x") - 1].p2c(+point.x) + plotOffset.left, 10),
|
| + top: parseInt(yaxes[axisNumber(point, "y") - 1].p2c(+point.y) + plotOffset.top, 10)
|
| + };
|
| + };
|
| + plot.shutdown = shutdown;
|
| + plot.destroy = function () {
|
| + shutdown();
|
| + placeholder.removeData("plot").empty();
|
| +
|
| + series = [];
|
| + options = null;
|
| + surface = null;
|
| + overlay = null;
|
| + eventHolder = null;
|
| + ctx = null;
|
| + octx = null;
|
| + xaxes = [];
|
| + yaxes = [];
|
| + hooks = null;
|
| + highlights = [];
|
| + plot = null;
|
| + };
|
| + plot.resize = function () {
|
| + var width = placeholder.width(),
|
| + height = placeholder.height();
|
| + surface.resize(width, height);
|
| + overlay.resize(width, height);
|
| + };
|
| +
|
| + // public attributes
|
| + plot.hooks = hooks;
|
| +
|
| + // initialize
|
| + initPlugins(plot);
|
| + parseOptions(options_);
|
| + setupCanvases();
|
| + setData(data_);
|
| + setupGrid();
|
| + draw();
|
| + bindEvents();
|
| +
|
| +
|
| + function executeHooks(hook, args) {
|
| + args = [plot].concat(args);
|
| + for (var i = 0; i < hook.length; ++i)
|
| + hook[i].apply(this, args);
|
| + }
|
| +
|
| + function initPlugins() {
|
| +
|
| + // References to key classes, allowing plugins to modify them
|
| +
|
| + var classes = {
|
| + Canvas: Canvas
|
| + };
|
| +
|
| + for (var i = 0; i < plugins.length; ++i) {
|
| + var p = plugins[i];
|
| + p.init(plot, classes);
|
| + if (p.options)
|
| + $.extend(true, options, p.options);
|
| + }
|
| + }
|
| +
|
| + function parseOptions(opts) {
|
| +
|
| + $.extend(true, options, opts);
|
| +
|
| + // $.extend merges arrays, rather than replacing them. When less
|
| + // colors are provided than the size of the default palette, we
|
| + // end up with those colors plus the remaining defaults, which is
|
| + // not expected behavior; avoid it by replacing them here.
|
| +
|
| + if (opts && opts.colors) {
|
| + options.colors = opts.colors;
|
| + }
|
| +
|
| + if (options.xaxis.color == null)
|
| + options.xaxis.color = $.color.parse(options.grid.color).scale('a', 0.22).toString();
|
| + if (options.yaxis.color == null)
|
| + options.yaxis.color = $.color.parse(options.grid.color).scale('a', 0.22).toString();
|
| +
|
| + if (options.xaxis.tickColor == null) // grid.tickColor for back-compatibility
|
| + options.xaxis.tickColor = options.grid.tickColor || options.xaxis.color;
|
| + if (options.yaxis.tickColor == null) // grid.tickColor for back-compatibility
|
| + options.yaxis.tickColor = options.grid.tickColor || options.yaxis.color;
|
| +
|
| + if (options.grid.borderColor == null)
|
| + options.grid.borderColor = options.grid.color;
|
| + if (options.grid.tickColor == null)
|
| + options.grid.tickColor = $.color.parse(options.grid.color).scale('a', 0.22).toString();
|
| +
|
| + // Fill in defaults for axis options, including any unspecified
|
| + // font-spec fields, if a font-spec was provided.
|
| +
|
| + // If no x/y axis options were provided, create one of each anyway,
|
| + // since the rest of the code assumes that they exist.
|
| +
|
| + var i, axisOptions, axisCount,
|
| + fontSize = placeholder.css("font-size"),
|
| + fontSizeDefault = fontSize ? +fontSize.replace("px", "") : 13,
|
| + fontDefaults = {
|
| + style: placeholder.css("font-style"),
|
| + size: Math.round(0.8 * fontSizeDefault),
|
| + variant: placeholder.css("font-variant"),
|
| + weight: placeholder.css("font-weight"),
|
| + family: placeholder.css("font-family")
|
| + };
|
| +
|
| + axisCount = options.xaxes.length || 1;
|
| + for (i = 0; i < axisCount; ++i) {
|
| +
|
| + axisOptions = options.xaxes[i];
|
| + if (axisOptions && !axisOptions.tickColor) {
|
| + axisOptions.tickColor = axisOptions.color;
|
| + }
|
| +
|
| + axisOptions = $.extend(true, {}, options.xaxis, axisOptions);
|
| + options.xaxes[i] = axisOptions;
|
| +
|
| + if (axisOptions.font) {
|
| + axisOptions.font = $.extend({}, fontDefaults, axisOptions.font);
|
| + if (!axisOptions.font.color) {
|
| + axisOptions.font.color = axisOptions.color;
|
| + }
|
| + if (!axisOptions.font.lineHeight) {
|
| + axisOptions.font.lineHeight = Math.round(axisOptions.font.size * 1.15);
|
| + }
|
| + }
|
| + }
|
| +
|
| + axisCount = options.yaxes.length || 1;
|
| + for (i = 0; i < axisCount; ++i) {
|
| +
|
| + axisOptions = options.yaxes[i];
|
| + if (axisOptions && !axisOptions.tickColor) {
|
| + axisOptions.tickColor = axisOptions.color;
|
| + }
|
| +
|
| + axisOptions = $.extend(true, {}, options.yaxis, axisOptions);
|
| + options.yaxes[i] = axisOptions;
|
| +
|
| + if (axisOptions.font) {
|
| + axisOptions.font = $.extend({}, fontDefaults, axisOptions.font);
|
| + if (!axisOptions.font.color) {
|
| + axisOptions.font.color = axisOptions.color;
|
| + }
|
| + if (!axisOptions.font.lineHeight) {
|
| + axisOptions.font.lineHeight = Math.round(axisOptions.font.size * 1.15);
|
| + }
|
| + }
|
| + }
|
| +
|
| + // backwards compatibility, to be removed in future
|
| + if (options.xaxis.noTicks && options.xaxis.ticks == null)
|
| + options.xaxis.ticks = options.xaxis.noTicks;
|
| + if (options.yaxis.noTicks && options.yaxis.ticks == null)
|
| + options.yaxis.ticks = options.yaxis.noTicks;
|
| + if (options.x2axis) {
|
| + options.xaxes[1] = $.extend(true, {}, options.xaxis, options.x2axis);
|
| + options.xaxes[1].position = "top";
|
| + // Override the inherit to allow the axis to auto-scale
|
| + if (options.x2axis.min == null) {
|
| + options.xaxes[1].min = null;
|
| + }
|
| + if (options.x2axis.max == null) {
|
| + options.xaxes[1].max = null;
|
| + }
|
| + }
|
| + if (options.y2axis) {
|
| + options.yaxes[1] = $.extend(true, {}, options.yaxis, options.y2axis);
|
| + options.yaxes[1].position = "right";
|
| + // Override the inherit to allow the axis to auto-scale
|
| + if (options.y2axis.min == null) {
|
| + options.yaxes[1].min = null;
|
| + }
|
| + if (options.y2axis.max == null) {
|
| + options.yaxes[1].max = null;
|
| + }
|
| + }
|
| + if (options.grid.coloredAreas)
|
| + options.grid.markings = options.grid.coloredAreas;
|
| + if (options.grid.coloredAreasColor)
|
| + options.grid.markingsColor = options.grid.coloredAreasColor;
|
| + if (options.lines)
|
| + $.extend(true, options.series.lines, options.lines);
|
| + if (options.points)
|
| + $.extend(true, options.series.points, options.points);
|
| + if (options.bars)
|
| + $.extend(true, options.series.bars, options.bars);
|
| + if (options.shadowSize != null)
|
| + options.series.shadowSize = options.shadowSize;
|
| + if (options.highlightColor != null)
|
| + options.series.highlightColor = options.highlightColor;
|
| +
|
| + // save options on axes for future reference
|
| + for (i = 0; i < options.xaxes.length; ++i)
|
| + getOrCreateAxis(xaxes, i + 1).options = options.xaxes[i];
|
| + for (i = 0; i < options.yaxes.length; ++i)
|
| + getOrCreateAxis(yaxes, i + 1).options = options.yaxes[i];
|
| +
|
| + // add hooks from options
|
| + for (var n in hooks)
|
| + if (options.hooks[n] && options.hooks[n].length)
|
| + hooks[n] = hooks[n].concat(options.hooks[n]);
|
| +
|
| + executeHooks(hooks.processOptions, [options]);
|
| + }
|
| +
|
| + function setData(d) {
|
| + series = parseData(d);
|
| + fillInSeriesOptions();
|
| + processData();
|
| + }
|
| +
|
| + function parseData(d) {
|
| + var res = [];
|
| + for (var i = 0; i < d.length; ++i) {
|
| + var s = $.extend(true, {}, options.series);
|
| +
|
| + if (d[i].data != null) {
|
| + s.data = d[i].data; // move the data instead of deep-copy
|
| + delete d[i].data;
|
| +
|
| + $.extend(true, s, d[i]);
|
| +
|
| + d[i].data = s.data;
|
| + }
|
| + else
|
| + s.data = d[i];
|
| + res.push(s);
|
| + }
|
| +
|
| + return res;
|
| + }
|
| +
|
| + function axisNumber(obj, coord) {
|
| + var a = obj[coord + "axis"];
|
| + if (typeof a == "object") // if we got a real axis, extract number
|
| + a = a.n;
|
| + if (typeof a != "number")
|
| + a = 1; // default to first axis
|
| + return a;
|
| + }
|
| +
|
| + function allAxes() {
|
| + // return flat array without annoying null entries
|
| + return $.grep(xaxes.concat(yaxes), function (a) { return a; });
|
| + }
|
| +
|
| + function canvasToAxisCoords(pos) {
|
| + // return an object with x/y corresponding to all used axes
|
| + var res = {}, i, axis;
|
| + for (i = 0; i < xaxes.length; ++i) {
|
| + axis = xaxes[i];
|
| + if (axis && axis.used)
|
| + res["x" + axis.n] = axis.c2p(pos.left);
|
| + }
|
| +
|
| + for (i = 0; i < yaxes.length; ++i) {
|
| + axis = yaxes[i];
|
| + if (axis && axis.used)
|
| + res["y" + axis.n] = axis.c2p(pos.top);
|
| + }
|
| +
|
| + if (res.x1 !== undefined)
|
| + res.x = res.x1;
|
| + if (res.y1 !== undefined)
|
| + res.y = res.y1;
|
| +
|
| + return res;
|
| + }
|
| +
|
| + function axisToCanvasCoords(pos) {
|
| + // get canvas coords from the first pair of x/y found in pos
|
| + var res = {}, i, axis, key;
|
| +
|
| + for (i = 0; i < xaxes.length; ++i) {
|
| + axis = xaxes[i];
|
| + if (axis && axis.used) {
|
| + key = "x" + axis.n;
|
| + if (pos[key] == null && axis.n == 1)
|
| + key = "x";
|
| +
|
| + if (pos[key] != null) {
|
| + res.left = axis.p2c(pos[key]);
|
| + break;
|
| + }
|
| + }
|
| + }
|
| +
|
| + for (i = 0; i < yaxes.length; ++i) {
|
| + axis = yaxes[i];
|
| + if (axis && axis.used) {
|
| + key = "y" + axis.n;
|
| + if (pos[key] == null && axis.n == 1)
|
| + key = "y";
|
| +
|
| + if (pos[key] != null) {
|
| + res.top = axis.p2c(pos[key]);
|
| + break;
|
| + }
|
| + }
|
| + }
|
| +
|
| + return res;
|
| + }
|
| +
|
| + function getOrCreateAxis(axes, number) {
|
| + if (!axes[number - 1])
|
| + axes[number - 1] = {
|
| + n: number, // save the number for future reference
|
| + direction: axes == xaxes ? "x" : "y",
|
| + options: $.extend(true, {}, axes == xaxes ? options.xaxis : options.yaxis)
|
| + };
|
| +
|
| + return axes[number - 1];
|
| + }
|
| +
|
| + function fillInSeriesOptions() {
|
| +
|
| + var neededColors = series.length, maxIndex = -1, i;
|
| +
|
| + // Subtract the number of series that already have fixed colors or
|
| + // color indexes from the number that we still need to generate.
|
| +
|
| + for (i = 0; i < series.length; ++i) {
|
| + var sc = series[i].color;
|
| + if (sc != null) {
|
| + neededColors--;
|
| + if (typeof sc == "number" && sc > maxIndex) {
|
| + maxIndex = sc;
|
| + }
|
| + }
|
| + }
|
| +
|
| + // If any of the series have fixed color indexes, then we need to
|
| + // generate at least as many colors as the highest index.
|
| +
|
| + if (neededColors <= maxIndex) {
|
| + neededColors = maxIndex + 1;
|
| + }
|
| +
|
| + // Generate all the colors, using first the option colors and then
|
| + // variations on those colors once they're exhausted.
|
| +
|
| + var c, colors = [], colorPool = options.colors,
|
| + colorPoolSize = colorPool.length, variation = 0;
|
| +
|
| + for (i = 0; i < neededColors; i++) {
|
| +
|
| + c = $.color.parse(colorPool[i % colorPoolSize] || "#666");
|
| +
|
| + // Each time we exhaust the colors in the pool we adjust
|
| + // a scaling factor used to produce more variations on
|
| + // those colors. The factor alternates negative/positive
|
| + // to produce lighter/darker colors.
|
| +
|
| + // Reset the variation after every few cycles, or else
|
| + // it will end up producing only white or black colors.
|
| +
|
| + if (i % colorPoolSize == 0 && i) {
|
| + if (variation >= 0) {
|
| + if (variation < 0.5) {
|
| + variation = -variation - 0.2;
|
| + } else variation = 0;
|
| + } else variation = -variation;
|
| + }
|
| +
|
| + colors[i] = c.scale('rgb', 1 + variation);
|
| + }
|
| +
|
| + // Finalize the series options, filling in their colors
|
| +
|
| + var colori = 0, s;
|
| + for (i = 0; i < series.length; ++i) {
|
| + s = series[i];
|
| +
|
| + // assign colors
|
| + if (s.color == null) {
|
| + s.color = colors[colori].toString();
|
| + ++colori;
|
| + }
|
| + else if (typeof s.color == "number")
|
| + s.color = colors[s.color].toString();
|
| +
|
| + // turn on lines automatically in case nothing is set
|
| + if (s.lines.show == null) {
|
| + var v, show = true;
|
| + for (v in s)
|
| + if (s[v] && s[v].show) {
|
| + show = false;
|
| + break;
|
| + }
|
| + if (show)
|
| + s.lines.show = true;
|
| + }
|
| +
|
| + // If nothing was provided for lines.zero, default it to match
|
| + // lines.fill, since areas by default should extend to zero.
|
| +
|
| + if (s.lines.zero == null) {
|
| + s.lines.zero = !!s.lines.fill;
|
| + }
|
| +
|
| + // setup axes
|
| + s.xaxis = getOrCreateAxis(xaxes, axisNumber(s, "x"));
|
| + s.yaxis = getOrCreateAxis(yaxes, axisNumber(s, "y"));
|
| + }
|
| + }
|
| +
|
| + function processData() {
|
| + var topSentry = Number.POSITIVE_INFINITY,
|
| + bottomSentry = Number.NEGATIVE_INFINITY,
|
| + fakeInfinity = Number.MAX_VALUE,
|
| + i, j, k, m, length,
|
| + s, points, ps, x, y, axis, val, f, p,
|
| + data, format;
|
| +
|
| + function updateAxis(axis, min, max) {
|
| + if (min < axis.datamin && min != -fakeInfinity)
|
| + axis.datamin = min;
|
| + if (max > axis.datamax && max != fakeInfinity)
|
| + axis.datamax = max;
|
| + }
|
| +
|
| + $.each(allAxes(), function (_, axis) {
|
| + // init axis
|
| + axis.datamin = topSentry;
|
| + axis.datamax = bottomSentry;
|
| + axis.used = false;
|
| + });
|
| +
|
| + for (i = 0; i < series.length; ++i) {
|
| + s = series[i];
|
| + s.datapoints = { points: [] };
|
| +
|
| + executeHooks(hooks.processRawData, [ s, s.data, s.datapoints ]);
|
| + }
|
| +
|
| + // first pass: clean and copy data
|
| + for (i = 0; i < series.length; ++i) {
|
| + s = series[i];
|
| +
|
| + data = s.data;
|
| + format = s.datapoints.format;
|
| +
|
| + if (!format) {
|
| + format = [];
|
| + // find out how to copy
|
| + format.push({ x: true, number: true, required: true });
|
| + format.push({ y: true, number: true, required: true });
|
| +
|
| + if (s.bars.show || (s.lines.show && s.lines.fill)) {
|
| + var autoscale = !!((s.bars.show && s.bars.zero) || (s.lines.show && s.lines.zero));
|
| + format.push({ y: true, number: true, required: false, defaultValue: 0, autoscale: autoscale });
|
| + if (s.bars.horizontal) {
|
| + delete format[format.length - 1].y;
|
| + format[format.length - 1].x = true;
|
| + }
|
| + }
|
| +
|
| + s.datapoints.format = format;
|
| + }
|
| +
|
| + if (s.datapoints.pointsize != null)
|
| + continue; // already filled in
|
| +
|
| + s.datapoints.pointsize = format.length;
|
| +
|
| + ps = s.datapoints.pointsize;
|
| + points = s.datapoints.points;
|
| +
|
| + var insertSteps = s.lines.show && s.lines.steps;
|
| + s.xaxis.used = s.yaxis.used = true;
|
| +
|
| + for (j = k = 0; j < data.length; ++j, k += ps) {
|
| + p = data[j];
|
| +
|
| + var nullify = p == null;
|
| + if (!nullify) {
|
| + for (m = 0; m < ps; ++m) {
|
| + val = p[m];
|
| + f = format[m];
|
| +
|
| + if (f) {
|
| + if (f.number && val != null) {
|
| + val = +val; // convert to number
|
| + if (isNaN(val))
|
| + val = null;
|
| + else if (val == Infinity)
|
| + val = fakeInfinity;
|
| + else if (val == -Infinity)
|
| + val = -fakeInfinity;
|
| + }
|
| +
|
| + if (val == null) {
|
| + if (f.required)
|
| + nullify = true;
|
| +
|
| + if (f.defaultValue != null)
|
| + val = f.defaultValue;
|
| + }
|
| + }
|
| +
|
| + points[k + m] = val;
|
| + }
|
| + }
|
| +
|
| + if (nullify) {
|
| + for (m = 0; m < ps; ++m) {
|
| + val = points[k + m];
|
| + if (val != null) {
|
| + f = format[m];
|
| + // extract min/max info
|
| + if (f.autoscale !== false) {
|
| + if (f.x) {
|
| + updateAxis(s.xaxis, val, val);
|
| + }
|
| + if (f.y) {
|
| + updateAxis(s.yaxis, val, val);
|
| + }
|
| + }
|
| + }
|
| + points[k + m] = null;
|
| + }
|
| + }
|
| + else {
|
| + // a little bit of line specific stuff that
|
| + // perhaps shouldn't be here, but lacking
|
| + // better means...
|
| + if (insertSteps && k > 0
|
| + && points[k - ps] != null
|
| + && points[k - ps] != points[k]
|
| + && points[k - ps + 1] != points[k + 1]) {
|
| + // copy the point to make room for a middle point
|
| + for (m = 0; m < ps; ++m)
|
| + points[k + ps + m] = points[k + m];
|
| +
|
| + // middle point has same y
|
| + points[k + 1] = points[k - ps + 1];
|
| +
|
| + // we've added a point, better reflect that
|
| + k += ps;
|
| + }
|
| + }
|
| + }
|
| + }
|
| +
|
| + // give the hooks a chance to run
|
| + for (i = 0; i < series.length; ++i) {
|
| + s = series[i];
|
| +
|
| + executeHooks(hooks.processDatapoints, [ s, s.datapoints]);
|
| + }
|
| +
|
| + // second pass: find datamax/datamin for auto-scaling
|
| + for (i = 0; i < series.length; ++i) {
|
| + s = series[i];
|
| + points = s.datapoints.points;
|
| + ps = s.datapoints.pointsize;
|
| + format = s.datapoints.format;
|
| +
|
| + var xmin = topSentry, ymin = topSentry,
|
| + xmax = bottomSentry, ymax = bottomSentry;
|
| +
|
| + for (j = 0; j < points.length; j += ps) {
|
| + if (points[j] == null)
|
| + continue;
|
| +
|
| + for (m = 0; m < ps; ++m) {
|
| + val = points[j + m];
|
| + f = format[m];
|
| + if (!f || f.autoscale === false || val == fakeInfinity || val == -fakeInfinity)
|
| + continue;
|
| +
|
| + if (f.x) {
|
| + if (val < xmin)
|
| + xmin = val;
|
| + if (val > xmax)
|
| + xmax = val;
|
| + }
|
| + if (f.y) {
|
| + if (val < ymin)
|
| + ymin = val;
|
| + if (val > ymax)
|
| + ymax = val;
|
| + }
|
| + }
|
| + }
|
| +
|
| + if (s.bars.show) {
|
| + // make sure we got room for the bar on the dancing floor
|
| + var delta;
|
| +
|
| + switch (s.bars.align) {
|
| + case "left":
|
| + delta = 0;
|
| + break;
|
| + case "right":
|
| + delta = -s.bars.barWidth;
|
| + break;
|
| + default:
|
| + delta = -s.bars.barWidth / 2;
|
| + }
|
| +
|
| + if (s.bars.horizontal) {
|
| + ymin += delta;
|
| + ymax += delta + s.bars.barWidth;
|
| + }
|
| + else {
|
| + xmin += delta;
|
| + xmax += delta + s.bars.barWidth;
|
| + }
|
| + }
|
| +
|
| + updateAxis(s.xaxis, xmin, xmax);
|
| + updateAxis(s.yaxis, ymin, ymax);
|
| + }
|
| +
|
| + $.each(allAxes(), function (_, axis) {
|
| + if (axis.datamin == topSentry)
|
| + axis.datamin = null;
|
| + if (axis.datamax == bottomSentry)
|
| + axis.datamax = null;
|
| + });
|
| + }
|
| +
|
| + function setupCanvases() {
|
| +
|
| + // Make sure the placeholder is clear of everything except canvases
|
| + // from a previous plot in this container that we'll try to re-use.
|
| +
|
| + placeholder.css("padding", 0) // padding messes up the positioning
|
| + .children().filter(function(){
|
| + return !$(this).hasClass("flot-overlay") && !$(this).hasClass('flot-base');
|
| + }).remove();
|
| +
|
| + if (placeholder.css("position") == 'static')
|
| + placeholder.css("position", "relative"); // for positioning labels and overlay
|
| +
|
| + surface = new Canvas("flot-base", placeholder);
|
| + overlay = new Canvas("flot-overlay", placeholder); // overlay canvas for interactive features
|
| +
|
| + ctx = surface.context;
|
| + octx = overlay.context;
|
| +
|
| + // define which element we're listening for events on
|
| + eventHolder = $(overlay.element).unbind();
|
| +
|
| + // If we're re-using a plot object, shut down the old one
|
| +
|
| + var existing = placeholder.data("plot");
|
| +
|
| + if (existing) {
|
| + existing.shutdown();
|
| + overlay.clear();
|
| + }
|
| +
|
| + // save in case we get replotted
|
| + placeholder.data("plot", plot);
|
| + }
|
| +
|
| + function bindEvents() {
|
| + // bind events
|
| + if (options.grid.hoverable) {
|
| + eventHolder.mousemove(onMouseMove);
|
| +
|
| + // Use bind, rather than .mouseleave, because we officially
|
| + // still support jQuery 1.2.6, which doesn't define a shortcut
|
| + // for mouseenter or mouseleave. This was a bug/oversight that
|
| + // was fixed somewhere around 1.3.x. We can return to using
|
| + // .mouseleave when we drop support for 1.2.6.
|
| +
|
| + eventHolder.bind("mouseleave", onMouseLeave);
|
| + }
|
| +
|
| + if (options.grid.clickable)
|
| + eventHolder.click(onClick);
|
| +
|
| + executeHooks(hooks.bindEvents, [eventHolder]);
|
| + }
|
| +
|
| + function shutdown() {
|
| + if (redrawTimeout)
|
| + clearTimeout(redrawTimeout);
|
| +
|
| + eventHolder.unbind("mousemove", onMouseMove);
|
| + eventHolder.unbind("mouseleave", onMouseLeave);
|
| + eventHolder.unbind("click", onClick);
|
| +
|
| + executeHooks(hooks.shutdown, [eventHolder]);
|
| + }
|
| +
|
| + function setTransformationHelpers(axis) {
|
| + // set helper functions on the axis, assumes plot area
|
| + // has been computed already
|
| +
|
| + function identity(x) { return x; }
|
| +
|
| + var s, m, t = axis.options.transform || identity,
|
| + it = axis.options.inverseTransform;
|
| +
|
| + // precompute how much the axis is scaling a point
|
| + // in canvas space
|
| + if (axis.direction == "x") {
|
| + s = axis.scale = plotWidth / Math.abs(t(axis.max) - t(axis.min));
|
| + m = Math.min(t(axis.max), t(axis.min));
|
| + }
|
| + else {
|
| + s = axis.scale = plotHeight / Math.abs(t(axis.max) - t(axis.min));
|
| + s = -s;
|
| + m = Math.max(t(axis.max), t(axis.min));
|
| + }
|
| +
|
| + // data point to canvas coordinate
|
| + if (t == identity) // slight optimization
|
| + axis.p2c = function (p) { return (p - m) * s; };
|
| + else
|
| + axis.p2c = function (p) { return (t(p) - m) * s; };
|
| + // canvas coordinate to data point
|
| + if (!it)
|
| + axis.c2p = function (c) { return m + c / s; };
|
| + else
|
| + axis.c2p = function (c) { return it(m + c / s); };
|
| + }
|
| +
|
| + function measureTickLabels(axis) {
|
| +
|
| + var opts = axis.options,
|
| + ticks = axis.ticks || [],
|
| + labelWidth = opts.labelWidth || 0,
|
| + labelHeight = opts.labelHeight || 0,
|
| + maxWidth = labelWidth || (axis.direction == "x" ? Math.floor(surface.width / (ticks.length || 1)) : null),
|
| + legacyStyles = axis.direction + "Axis " + axis.direction + axis.n + "Axis",
|
| + layer = "flot-" + axis.direction + "-axis flot-" + axis.direction + axis.n + "-axis " + legacyStyles,
|
| + font = opts.font || "flot-tick-label tickLabel";
|
| +
|
| + for (var i = 0; i < ticks.length; ++i) {
|
| +
|
| + var t = ticks[i];
|
| +
|
| + if (!t.label)
|
| + continue;
|
| +
|
| + var info = surface.getTextInfo(layer, t.label, font, null, maxWidth);
|
| +
|
| + labelWidth = Math.max(labelWidth, info.width);
|
| + labelHeight = Math.max(labelHeight, info.height);
|
| + }
|
| +
|
| + axis.labelWidth = opts.labelWidth || labelWidth;
|
| + axis.labelHeight = opts.labelHeight || labelHeight;
|
| + }
|
| +
|
| + function allocateAxisBoxFirstPhase(axis) {
|
| + // find the bounding box of the axis by looking at label
|
| + // widths/heights and ticks, make room by diminishing the
|
| + // plotOffset; this first phase only looks at one
|
| + // dimension per axis, the other dimension depends on the
|
| + // other axes so will have to wait
|
| +
|
| + var lw = axis.labelWidth,
|
| + lh = axis.labelHeight,
|
| + pos = axis.options.position,
|
| + isXAxis = axis.direction === "x",
|
| + tickLength = axis.options.tickLength,
|
| + axisMargin = options.grid.axisMargin,
|
| + padding = options.grid.labelMargin,
|
| + innermost = true,
|
| + outermost = true,
|
| + first = true,
|
| + found = false;
|
| +
|
| + // Determine the axis's position in its direction and on its side
|
| +
|
| + $.each(isXAxis ? xaxes : yaxes, function(i, a) {
|
| + if (a && (a.show || a.reserveSpace)) {
|
| + if (a === axis) {
|
| + found = true;
|
| + } else if (a.options.position === pos) {
|
| + if (found) {
|
| + outermost = false;
|
| + } else {
|
| + innermost = false;
|
| + }
|
| + }
|
| + if (!found) {
|
| + first = false;
|
| + }
|
| + }
|
| + });
|
| +
|
| + // The outermost axis on each side has no margin
|
| +
|
| + if (outermost) {
|
| + axisMargin = 0;
|
| + }
|
| +
|
| + // The ticks for the first axis in each direction stretch across
|
| +
|
| + if (tickLength == null) {
|
| + tickLength = first ? "full" : 5;
|
| + }
|
| +
|
| + if (!isNaN(+tickLength))
|
| + padding += +tickLength;
|
| +
|
| + if (isXAxis) {
|
| + lh += padding;
|
| +
|
| + if (pos == "bottom") {
|
| + plotOffset.bottom += lh + axisMargin;
|
| + axis.box = { top: surface.height - plotOffset.bottom, height: lh };
|
| + }
|
| + else {
|
| + axis.box = { top: plotOffset.top + axisMargin, height: lh };
|
| + plotOffset.top += lh + axisMargin;
|
| + }
|
| + }
|
| + else {
|
| + lw += padding;
|
| +
|
| + if (pos == "left") {
|
| + axis.box = { left: plotOffset.left + axisMargin, width: lw };
|
| + plotOffset.left += lw + axisMargin;
|
| + }
|
| + else {
|
| + plotOffset.right += lw + axisMargin;
|
| + axis.box = { left: surface.width - plotOffset.right, width: lw };
|
| + }
|
| + }
|
| +
|
| + // save for future reference
|
| + axis.position = pos;
|
| + axis.tickLength = tickLength;
|
| + axis.box.padding = padding;
|
| + axis.innermost = innermost;
|
| + }
|
| +
|
| + function allocateAxisBoxSecondPhase(axis) {
|
| + // now that all axis boxes have been placed in one
|
| + // dimension, we can set the remaining dimension coordinates
|
| + if (axis.direction == "x") {
|
| + axis.box.left = plotOffset.left - axis.labelWidth / 2;
|
| + axis.box.width = surface.width - plotOffset.left - plotOffset.right + axis.labelWidth;
|
| + }
|
| + else {
|
| + axis.box.top = plotOffset.top - axis.labelHeight / 2;
|
| + axis.box.height = surface.height - plotOffset.bottom - plotOffset.top + axis.labelHeight;
|
| + }
|
| + }
|
| +
|
| + function adjustLayoutForThingsStickingOut() {
|
| + // possibly adjust plot offset to ensure everything stays
|
| + // inside the canvas and isn't clipped off
|
| +
|
| + var minMargin = options.grid.minBorderMargin,
|
| + axis, i;
|
| +
|
| + // check stuff from the plot (FIXME: this should just read
|
| + // a value from the series, otherwise it's impossible to
|
| + // customize)
|
| + if (minMargin == null) {
|
| + minMargin = 0;
|
| + for (i = 0; i < series.length; ++i)
|
| + minMargin = Math.max(minMargin, 2 * (series[i].points.radius + series[i].points.lineWidth/2));
|
| + }
|
| +
|
| + var margins = {
|
| + left: minMargin,
|
| + right: minMargin,
|
| + top: minMargin,
|
| + bottom: minMargin
|
| + };
|
| +
|
| + // check axis labels, note we don't check the actual
|
| + // labels but instead use the overall width/height to not
|
| + // jump as much around with replots
|
| + $.each(allAxes(), function (_, axis) {
|
| + if (axis.reserveSpace && axis.ticks && axis.ticks.length) {
|
| + if (axis.direction === "x") {
|
| + margins.left = Math.max(margins.left, axis.labelWidth / 2);
|
| + margins.right = Math.max(margins.right, axis.labelWidth / 2);
|
| + } else {
|
| + margins.bottom = Math.max(margins.bottom, axis.labelHeight / 2);
|
| + margins.top = Math.max(margins.top, axis.labelHeight / 2);
|
| + }
|
| + }
|
| + });
|
| +
|
| + plotOffset.left = Math.ceil(Math.max(margins.left, plotOffset.left));
|
| + plotOffset.right = Math.ceil(Math.max(margins.right, plotOffset.right));
|
| + plotOffset.top = Math.ceil(Math.max(margins.top, plotOffset.top));
|
| + plotOffset.bottom = Math.ceil(Math.max(margins.bottom, plotOffset.bottom));
|
| + }
|
| +
|
| + function setupGrid() {
|
| + var i, axes = allAxes(), showGrid = options.grid.show;
|
| +
|
| + // Initialize the plot's offset from the edge of the canvas
|
| +
|
| + for (var a in plotOffset) {
|
| + var margin = options.grid.margin || 0;
|
| + plotOffset[a] = typeof margin == "number" ? margin : margin[a] || 0;
|
| + }
|
| +
|
| + executeHooks(hooks.processOffset, [plotOffset]);
|
| +
|
| + // If the grid is visible, add its border width to the offset
|
| +
|
| + for (var a in plotOffset) {
|
| + if(typeof(options.grid.borderWidth) == "object") {
|
| + plotOffset[a] += showGrid ? options.grid.borderWidth[a] : 0;
|
| + }
|
| + else {
|
| + plotOffset[a] += showGrid ? options.grid.borderWidth : 0;
|
| + }
|
| + }
|
| +
|
| + $.each(axes, function (_, axis) {
|
| + var axisOpts = axis.options;
|
| + axis.show = axisOpts.show == null ? axis.used : axisOpts.show;
|
| + axis.reserveSpace = axisOpts.reserveSpace == null ? axis.show : axisOpts.reserveSpace;
|
| + setRange(axis);
|
| + });
|
| +
|
| + if (showGrid) {
|
| +
|
| + var allocatedAxes = $.grep(axes, function (axis) {
|
| + return axis.show || axis.reserveSpace;
|
| + });
|
| +
|
| + $.each(allocatedAxes, function (_, axis) {
|
| + // make the ticks
|
| + setupTickGeneration(axis);
|
| + setTicks(axis);
|
| + snapRangeToTicks(axis, axis.ticks);
|
| + // find labelWidth/Height for axis
|
| + measureTickLabels(axis);
|
| + });
|
| +
|
| + // with all dimensions calculated, we can compute the
|
| + // axis bounding boxes, start from the outside
|
| + // (reverse order)
|
| + for (i = allocatedAxes.length - 1; i >= 0; --i)
|
| + allocateAxisBoxFirstPhase(allocatedAxes[i]);
|
| +
|
| + // make sure we've got enough space for things that
|
| + // might stick out
|
| + adjustLayoutForThingsStickingOut();
|
| +
|
| + $.each(allocatedAxes, function (_, axis) {
|
| + allocateAxisBoxSecondPhase(axis);
|
| + });
|
| + }
|
| +
|
| + plotWidth = surface.width - plotOffset.left - plotOffset.right;
|
| + plotHeight = surface.height - plotOffset.bottom - plotOffset.top;
|
| +
|
| + // now we got the proper plot dimensions, we can compute the scaling
|
| + $.each(axes, function (_, axis) {
|
| + setTransformationHelpers(axis);
|
| + });
|
| +
|
| + if (showGrid) {
|
| + drawAxisLabels();
|
| + }
|
| +
|
| + insertLegend();
|
| + }
|
| +
|
| + function setRange(axis) {
|
| + var opts = axis.options,
|
| + min = +(opts.min != null ? opts.min : axis.datamin),
|
| + max = +(opts.max != null ? opts.max : axis.datamax),
|
| + delta = max - min;
|
| +
|
| + if (delta == 0.0) {
|
| + // degenerate case
|
| + var widen = max == 0 ? 1 : 0.01;
|
| +
|
| + if (opts.min == null)
|
| + min -= widen;
|
| + // always widen max if we couldn't widen min to ensure we
|
| + // don't fall into min == max which doesn't work
|
| + if (opts.max == null || opts.min != null)
|
| + max += widen;
|
| + }
|
| + else {
|
| + // consider autoscaling
|
| + var margin = opts.autoscaleMargin;
|
| + if (margin != null) {
|
| + if (opts.min == null) {
|
| + min -= delta * margin;
|
| + // make sure we don't go below zero if all values
|
| + // are positive
|
| + if (min < 0 && axis.datamin != null && axis.datamin >= 0)
|
| + min = 0;
|
| + }
|
| + if (opts.max == null) {
|
| + max += delta * margin;
|
| + if (max > 0 && axis.datamax != null && axis.datamax <= 0)
|
| + max = 0;
|
| + }
|
| + }
|
| + }
|
| + axis.min = min;
|
| + axis.max = max;
|
| + }
|
| +
|
| + function setupTickGeneration(axis) {
|
| + var opts = axis.options;
|
| +
|
| + // estimate number of ticks
|
| + var noTicks;
|
| + if (typeof opts.ticks == "number" && opts.ticks > 0)
|
| + noTicks = opts.ticks;
|
| + else
|
| + // heuristic based on the model a*sqrt(x) fitted to
|
| + // some data points that seemed reasonable
|
| + noTicks = 0.3 * Math.sqrt(axis.direction == "x" ? surface.width : surface.height);
|
| +
|
| + var delta = (axis.max - axis.min) / noTicks,
|
| + dec = -Math.floor(Math.log(delta) / Math.LN10),
|
| + maxDec = opts.tickDecimals;
|
| +
|
| + if (maxDec != null && dec > maxDec) {
|
| + dec = maxDec;
|
| + }
|
| +
|
| + var magn = Math.pow(10, -dec),
|
| + norm = delta / magn, // norm is between 1.0 and 10.0
|
| + size;
|
| +
|
| + if (norm < 1.5) {
|
| + size = 1;
|
| + } else if (norm < 3) {
|
| + size = 2;
|
| + // special case for 2.5, requires an extra decimal
|
| + if (norm > 2.25 && (maxDec == null || dec + 1 <= maxDec)) {
|
| + size = 2.5;
|
| + ++dec;
|
| + }
|
| + } else if (norm < 7.5) {
|
| + size = 5;
|
| + } else {
|
| + size = 10;
|
| + }
|
| +
|
| + size *= magn;
|
| +
|
| + if (opts.minTickSize != null && size < opts.minTickSize) {
|
| + size = opts.minTickSize;
|
| + }
|
| +
|
| + axis.delta = delta;
|
| + axis.tickDecimals = Math.max(0, maxDec != null ? maxDec : dec);
|
| + axis.tickSize = opts.tickSize || size;
|
| +
|
| + // Time mode was moved to a plug-in in 0.8, and since so many people use it
|
| + // we'll add an especially friendly reminder to make sure they included it.
|
| +
|
| + if (opts.mode == "time" && !axis.tickGenerator) {
|
| + throw new Error("Time mode requires the flot.time plugin.");
|
| + }
|
| +
|
| + // Flot supports base-10 axes; any other mode else is handled by a plug-in,
|
| + // like flot.time.js.
|
| +
|
| + if (!axis.tickGenerator) {
|
| +
|
| + axis.tickGenerator = function (axis) {
|
| +
|
| + var ticks = [],
|
| + start = floorInBase(axis.min, axis.tickSize),
|
| + i = 0,
|
| + v = Number.NaN,
|
| + prev;
|
| +
|
| + do {
|
| + prev = v;
|
| + v = start + i * axis.tickSize;
|
| + ticks.push(v);
|
| + ++i;
|
| + } while (v < axis.max && v != prev);
|
| + return ticks;
|
| + };
|
| +
|
| + axis.tickFormatter = function (value, axis) {
|
| +
|
| + var factor = axis.tickDecimals ? Math.pow(10, axis.tickDecimals) : 1;
|
| + var formatted = "" + Math.round(value * factor) / factor;
|
| +
|
| + // If tickDecimals was specified, ensure that we have exactly that
|
| + // much precision; otherwise default to the value's own precision.
|
| +
|
| + if (axis.tickDecimals != null) {
|
| + var decimal = formatted.indexOf(".");
|
| + var precision = decimal == -1 ? 0 : formatted.length - decimal - 1;
|
| + if (precision < axis.tickDecimals) {
|
| + return (precision ? formatted : formatted + ".") + ("" + factor).substr(1, axis.tickDecimals - precision);
|
| + }
|
| + }
|
| +
|
| + return formatted;
|
| + };
|
| + }
|
| +
|
| + if ($.isFunction(opts.tickFormatter))
|
| + axis.tickFormatter = function (v, axis) { return "" + opts.tickFormatter(v, axis); };
|
| +
|
| + if (opts.alignTicksWithAxis != null) {
|
| + var otherAxis = (axis.direction == "x" ? xaxes : yaxes)[opts.alignTicksWithAxis - 1];
|
| + if (otherAxis && otherAxis.used && otherAxis != axis) {
|
| + // consider snapping min/max to outermost nice ticks
|
| + var niceTicks = axis.tickGenerator(axis);
|
| + if (niceTicks.length > 0) {
|
| + if (opts.min == null)
|
| + axis.min = Math.min(axis.min, niceTicks[0]);
|
| + if (opts.max == null && niceTicks.length > 1)
|
| + axis.max = Math.max(axis.max, niceTicks[niceTicks.length - 1]);
|
| + }
|
| +
|
| + axis.tickGenerator = function (axis) {
|
| + // copy ticks, scaled to this axis
|
| + var ticks = [], v, i;
|
| + for (i = 0; i < otherAxis.ticks.length; ++i) {
|
| + v = (otherAxis.ticks[i].v - otherAxis.min) / (otherAxis.max - otherAxis.min);
|
| + v = axis.min + v * (axis.max - axis.min);
|
| + ticks.push(v);
|
| + }
|
| + return ticks;
|
| + };
|
| +
|
| + // we might need an extra decimal since forced
|
| + // ticks don't necessarily fit naturally
|
| + if (!axis.mode && opts.tickDecimals == null) {
|
| + var extraDec = Math.max(0, -Math.floor(Math.log(axis.delta) / Math.LN10) + 1),
|
| + ts = axis.tickGenerator(axis);
|
| +
|
| + // only proceed if the tick interval rounded
|
| + // with an extra decimal doesn't give us a
|
| + // zero at end
|
| + if (!(ts.length > 1 && /\..*0$/.test((ts[1] - ts[0]).toFixed(extraDec))))
|
| + axis.tickDecimals = extraDec;
|
| + }
|
| + }
|
| + }
|
| + }
|
| +
|
| + function setTicks(axis) {
|
| + var oticks = axis.options.ticks, ticks = [];
|
| + if (oticks == null || (typeof oticks == "number" && oticks > 0))
|
| + ticks = axis.tickGenerator(axis);
|
| + else if (oticks) {
|
| + if ($.isFunction(oticks))
|
| + // generate the ticks
|
| + ticks = oticks(axis);
|
| + else
|
| + ticks = oticks;
|
| + }
|
| +
|
| + // clean up/labelify the supplied ticks, copy them over
|
| + var i, v;
|
| + axis.ticks = [];
|
| + for (i = 0; i < ticks.length; ++i) {
|
| + var label = null;
|
| + var t = ticks[i];
|
| + if (typeof t == "object") {
|
| + v = +t[0];
|
| + if (t.length > 1)
|
| + label = t[1];
|
| + }
|
| + else
|
| + v = +t;
|
| + if (label == null)
|
| + label = axis.tickFormatter(v, axis);
|
| + if (!isNaN(v))
|
| + axis.ticks.push({ v: v, label: label });
|
| + }
|
| + }
|
| +
|
| + function snapRangeToTicks(axis, ticks) {
|
| + if (axis.options.autoscaleMargin && ticks.length > 0) {
|
| + // snap to ticks
|
| + if (axis.options.min == null)
|
| + axis.min = Math.min(axis.min, ticks[0].v);
|
| + if (axis.options.max == null && ticks.length > 1)
|
| + axis.max = Math.max(axis.max, ticks[ticks.length - 1].v);
|
| + }
|
| + }
|
| +
|
| + function draw() {
|
| +
|
| + surface.clear();
|
| +
|
| + executeHooks(hooks.drawBackground, [ctx]);
|
| +
|
| + var grid = options.grid;
|
| +
|
| + // draw background, if any
|
| + if (grid.show && grid.backgroundColor)
|
| + drawBackground();
|
| +
|
| + if (grid.show && !grid.aboveData) {
|
| + drawGrid();
|
| + }
|
| +
|
| + for (var i = 0; i < series.length; ++i) {
|
| + executeHooks(hooks.drawSeries, [ctx, series[i]]);
|
| + drawSeries(series[i]);
|
| + }
|
| +
|
| + executeHooks(hooks.draw, [ctx]);
|
| +
|
| + if (grid.show && grid.aboveData) {
|
| + drawGrid();
|
| + }
|
| +
|
| + surface.render();
|
| +
|
| + // A draw implies that either the axes or data have changed, so we
|
| + // should probably update the overlay highlights as well.
|
| +
|
| + triggerRedrawOverlay();
|
| + }
|
| +
|
| + function extractRange(ranges, coord) {
|
| + var axis, from, to, key, axes = allAxes();
|
| +
|
| + for (var i = 0; i < axes.length; ++i) {
|
| + axis = axes[i];
|
| + if (axis.direction == coord) {
|
| + key = coord + axis.n + "axis";
|
| + if (!ranges[key] && axis.n == 1)
|
| + key = coord + "axis"; // support x1axis as xaxis
|
| + if (ranges[key]) {
|
| + from = ranges[key].from;
|
| + to = ranges[key].to;
|
| + break;
|
| + }
|
| + }
|
| + }
|
| +
|
| + // backwards-compat stuff - to be removed in future
|
| + if (!ranges[key]) {
|
| + axis = coord == "x" ? xaxes[0] : yaxes[0];
|
| + from = ranges[coord + "1"];
|
| + to = ranges[coord + "2"];
|
| + }
|
| +
|
| + // auto-reverse as an added bonus
|
| + if (from != null && to != null && from > to) {
|
| + var tmp = from;
|
| + from = to;
|
| + to = tmp;
|
| + }
|
| +
|
| + return { from: from, to: to, axis: axis };
|
| + }
|
| +
|
| + function drawBackground() {
|
| + ctx.save();
|
| + ctx.translate(plotOffset.left, plotOffset.top);
|
| +
|
| + ctx.fillStyle = getColorOrGradient(options.grid.backgroundColor, plotHeight, 0, "rgba(255, 255, 255, 0)");
|
| + ctx.fillRect(0, 0, plotWidth, plotHeight);
|
| + ctx.restore();
|
| + }
|
| +
|
| + function drawGrid() {
|
| + var i, axes, bw, bc;
|
| +
|
| + ctx.save();
|
| + ctx.translate(plotOffset.left, plotOffset.top);
|
| +
|
| + // draw markings
|
| + var markings = options.grid.markings;
|
| + if (markings) {
|
| + if ($.isFunction(markings)) {
|
| + axes = plot.getAxes();
|
| + // xmin etc. is backwards compatibility, to be
|
| + // removed in the future
|
| + axes.xmin = axes.xaxis.min;
|
| + axes.xmax = axes.xaxis.max;
|
| + axes.ymin = axes.yaxis.min;
|
| + axes.ymax = axes.yaxis.max;
|
| +
|
| + markings = markings(axes);
|
| + }
|
| +
|
| + for (i = 0; i < markings.length; ++i) {
|
| + var m = markings[i],
|
| + xrange = extractRange(m, "x"),
|
| + yrange = extractRange(m, "y");
|
| +
|
| + // fill in missing
|
| + if (xrange.from == null)
|
| + xrange.from = xrange.axis.min;
|
| + if (xrange.to == null)
|
| + xrange.to = xrange.axis.max;
|
| + if (yrange.from == null)
|
| + yrange.from = yrange.axis.min;
|
| + if (yrange.to == null)
|
| + yrange.to = yrange.axis.max;
|
| +
|
| + // clip
|
| + if (xrange.to < xrange.axis.min || xrange.from > xrange.axis.max ||
|
| + yrange.to < yrange.axis.min || yrange.from > yrange.axis.max)
|
| + continue;
|
| +
|
| + xrange.from = Math.max(xrange.from, xrange.axis.min);
|
| + xrange.to = Math.min(xrange.to, xrange.axis.max);
|
| + yrange.from = Math.max(yrange.from, yrange.axis.min);
|
| + yrange.to = Math.min(yrange.to, yrange.axis.max);
|
| +
|
| + var xequal = xrange.from === xrange.to,
|
| + yequal = yrange.from === yrange.to;
|
| +
|
| + if (xequal && yequal) {
|
| + continue;
|
| + }
|
| +
|
| + // then draw
|
| + xrange.from = Math.floor(xrange.axis.p2c(xrange.from));
|
| + xrange.to = Math.floor(xrange.axis.p2c(xrange.to));
|
| + yrange.from = Math.floor(yrange.axis.p2c(yrange.from));
|
| + yrange.to = Math.floor(yrange.axis.p2c(yrange.to));
|
| +
|
| + if (xequal || yequal) {
|
| + var lineWidth = m.lineWidth || options.grid.markingsLineWidth,
|
| + subPixel = lineWidth % 2 ? 0.5 : 0;
|
| + ctx.beginPath();
|
| + ctx.strokeStyle = m.color || options.grid.markingsColor;
|
| + ctx.lineWidth = lineWidth;
|
| + if (xequal) {
|
| + ctx.moveTo(xrange.to + subPixel, yrange.from);
|
| + ctx.lineTo(xrange.to + subPixel, yrange.to);
|
| + } else {
|
| + ctx.moveTo(xrange.from, yrange.to + subPixel);
|
| + ctx.lineTo(xrange.to, yrange.to + subPixel);
|
| + }
|
| + ctx.stroke();
|
| + } else {
|
| + ctx.fillStyle = m.color || options.grid.markingsColor;
|
| + ctx.fillRect(xrange.from, yrange.to,
|
| + xrange.to - xrange.from,
|
| + yrange.from - yrange.to);
|
| + }
|
| + }
|
| + }
|
| +
|
| + // draw the ticks
|
| + axes = allAxes();
|
| + bw = options.grid.borderWidth;
|
| +
|
| + for (var j = 0; j < axes.length; ++j) {
|
| + var axis = axes[j], box = axis.box,
|
| + t = axis.tickLength, x, y, xoff, yoff;
|
| + if (!axis.show || axis.ticks.length == 0)
|
| + continue;
|
| +
|
| + ctx.lineWidth = 1;
|
| +
|
| + // find the edges
|
| + if (axis.direction == "x") {
|
| + x = 0;
|
| + if (t == "full")
|
| + y = (axis.position == "top" ? 0 : plotHeight);
|
| + else
|
| + y = box.top - plotOffset.top + (axis.position == "top" ? box.height : 0);
|
| + }
|
| + else {
|
| + y = 0;
|
| + if (t == "full")
|
| + x = (axis.position == "left" ? 0 : plotWidth);
|
| + else
|
| + x = box.left - plotOffset.left + (axis.position == "left" ? box.width : 0);
|
| + }
|
| +
|
| + // draw tick bar
|
| + if (!axis.innermost) {
|
| + ctx.strokeStyle = axis.options.color;
|
| + ctx.beginPath();
|
| + xoff = yoff = 0;
|
| + if (axis.direction == "x")
|
| + xoff = plotWidth + 1;
|
| + else
|
| + yoff = plotHeight + 1;
|
| +
|
| + if (ctx.lineWidth == 1) {
|
| + if (axis.direction == "x") {
|
| + y = Math.floor(y) + 0.5;
|
| + } else {
|
| + x = Math.floor(x) + 0.5;
|
| + }
|
| + }
|
| +
|
| + ctx.moveTo(x, y);
|
| + ctx.lineTo(x + xoff, y + yoff);
|
| + ctx.stroke();
|
| + }
|
| +
|
| + // draw ticks
|
| +
|
| + ctx.strokeStyle = axis.options.tickColor;
|
| +
|
| + ctx.beginPath();
|
| + for (i = 0; i < axis.ticks.length; ++i) {
|
| + var v = axis.ticks[i].v;
|
| +
|
| + xoff = yoff = 0;
|
| +
|
| + if (isNaN(v) || v < axis.min || v > axis.max
|
| + // skip those lying on the axes if we got a border
|
| + || (t == "full"
|
| + && ((typeof bw == "object" && bw[axis.position] > 0) || bw > 0)
|
| + && (v == axis.min || v == axis.max)))
|
| + continue;
|
| +
|
| + if (axis.direction == "x") {
|
| + x = axis.p2c(v);
|
| + yoff = t == "full" ? -plotHeight : t;
|
| +
|
| + if (axis.position == "top")
|
| + yoff = -yoff;
|
| + }
|
| + else {
|
| + y = axis.p2c(v);
|
| + xoff = t == "full" ? -plotWidth : t;
|
| +
|
| + if (axis.position == "left")
|
| + xoff = -xoff;
|
| + }
|
| +
|
| + if (ctx.lineWidth == 1) {
|
| + if (axis.direction == "x")
|
| + x = Math.floor(x) + 0.5;
|
| + else
|
| + y = Math.floor(y) + 0.5;
|
| + }
|
| +
|
| + ctx.moveTo(x, y);
|
| + ctx.lineTo(x + xoff, y + yoff);
|
| + }
|
| +
|
| + ctx.stroke();
|
| + }
|
| +
|
| +
|
| + // draw border
|
| + if (bw) {
|
| + // If either borderWidth or borderColor is an object, then draw the border
|
| + // line by line instead of as one rectangle
|
| + bc = options.grid.borderColor;
|
| + if(typeof bw == "object" || typeof bc == "object") {
|
| + if (typeof bw !== "object") {
|
| + bw = {top: bw, right: bw, bottom: bw, left: bw};
|
| + }
|
| + if (typeof bc !== "object") {
|
| + bc = {top: bc, right: bc, bottom: bc, left: bc};
|
| + }
|
| +
|
| + if (bw.top > 0) {
|
| + ctx.strokeStyle = bc.top;
|
| + ctx.lineWidth = bw.top;
|
| + ctx.beginPath();
|
| + ctx.moveTo(0 - bw.left, 0 - bw.top/2);
|
| + ctx.lineTo(plotWidth, 0 - bw.top/2);
|
| + ctx.stroke();
|
| + }
|
| +
|
| + if (bw.right > 0) {
|
| + ctx.strokeStyle = bc.right;
|
| + ctx.lineWidth = bw.right;
|
| + ctx.beginPath();
|
| + ctx.moveTo(plotWidth + bw.right / 2, 0 - bw.top);
|
| + ctx.lineTo(plotWidth + bw.right / 2, plotHeight);
|
| + ctx.stroke();
|
| + }
|
| +
|
| + if (bw.bottom > 0) {
|
| + ctx.strokeStyle = bc.bottom;
|
| + ctx.lineWidth = bw.bottom;
|
| + ctx.beginPath();
|
| + ctx.moveTo(plotWidth + bw.right, plotHeight + bw.bottom / 2);
|
| + ctx.lineTo(0, plotHeight + bw.bottom / 2);
|
| + ctx.stroke();
|
| + }
|
| +
|
| + if (bw.left > 0) {
|
| + ctx.strokeStyle = bc.left;
|
| + ctx.lineWidth = bw.left;
|
| + ctx.beginPath();
|
| + ctx.moveTo(0 - bw.left/2, plotHeight + bw.bottom);
|
| + ctx.lineTo(0- bw.left/2, 0);
|
| + ctx.stroke();
|
| + }
|
| + }
|
| + else {
|
| + ctx.lineWidth = bw;
|
| + ctx.strokeStyle = options.grid.borderColor;
|
| + ctx.strokeRect(-bw/2, -bw/2, plotWidth + bw, plotHeight + bw);
|
| + }
|
| + }
|
| +
|
| + ctx.restore();
|
| + }
|
| +
|
| + function drawAxisLabels() {
|
| +
|
| + $.each(allAxes(), function (_, axis) {
|
| + var box = axis.box,
|
| + legacyStyles = axis.direction + "Axis " + axis.direction + axis.n + "Axis",
|
| + layer = "flot-" + axis.direction + "-axis flot-" + axis.direction + axis.n + "-axis " + legacyStyles,
|
| + font = axis.options.font || "flot-tick-label tickLabel",
|
| + tick, x, y, halign, valign;
|
| +
|
| + // Remove text before checking for axis.show and ticks.length;
|
| + // otherwise plugins, like flot-tickrotor, that draw their own
|
| + // tick labels will end up with both theirs and the defaults.
|
| +
|
| + surface.removeText(layer);
|
| +
|
| + if (!axis.show || axis.ticks.length == 0)
|
| + return;
|
| +
|
| + for (var i = 0; i < axis.ticks.length; ++i) {
|
| +
|
| + tick = axis.ticks[i];
|
| + if (!tick.label || tick.v < axis.min || tick.v > axis.max)
|
| + continue;
|
| +
|
| + if (axis.direction == "x") {
|
| + halign = "center";
|
| + x = plotOffset.left + axis.p2c(tick.v);
|
| + if (axis.position == "bottom") {
|
| + y = box.top + box.padding;
|
| + } else {
|
| + y = box.top + box.height - box.padding;
|
| + valign = "bottom";
|
| + }
|
| + } else {
|
| + valign = "middle";
|
| + y = plotOffset.top + axis.p2c(tick.v);
|
| + if (axis.position == "left") {
|
| + x = box.left + box.width - box.padding;
|
| + halign = "right";
|
| + } else {
|
| + x = box.left + box.padding;
|
| + }
|
| + }
|
| +
|
| + surface.addText(layer, x, y, tick.label, font, null, null, halign, valign);
|
| + }
|
| + });
|
| + }
|
| +
|
| + function drawSeries(series) {
|
| + if (series.lines.show)
|
| + drawSeriesLines(series);
|
| + if (series.bars.show)
|
| + drawSeriesBars(series);
|
| + if (series.points.show)
|
| + drawSeriesPoints(series);
|
| + }
|
| +
|
| + function drawSeriesLines(series) {
|
| + function plotLine(datapoints, xoffset, yoffset, axisx, axisy) {
|
| + var points = datapoints.points,
|
| + ps = datapoints.pointsize,
|
| + prevx = null, prevy = null;
|
| +
|
| + ctx.beginPath();
|
| + for (var i = ps; i < points.length; i += ps) {
|
| + var x1 = points[i - ps], y1 = points[i - ps + 1],
|
| + x2 = points[i], y2 = points[i + 1];
|
| +
|
| + if (x1 == null || x2 == null)
|
| + continue;
|
| +
|
| + // clip with ymin
|
| + if (y1 <= y2 && y1 < axisy.min) {
|
| + if (y2 < axisy.min)
|
| + continue; // line segment is outside
|
| + // compute new intersection point
|
| + x1 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1;
|
| + y1 = axisy.min;
|
| + }
|
| + else if (y2 <= y1 && y2 < axisy.min) {
|
| + if (y1 < axisy.min)
|
| + continue;
|
| + x2 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1;
|
| + y2 = axisy.min;
|
| + }
|
| +
|
| + // clip with ymax
|
| + if (y1 >= y2 && y1 > axisy.max) {
|
| + if (y2 > axisy.max)
|
| + continue;
|
| + x1 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1;
|
| + y1 = axisy.max;
|
| + }
|
| + else if (y2 >= y1 && y2 > axisy.max) {
|
| + if (y1 > axisy.max)
|
| + continue;
|
| + x2 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1;
|
| + y2 = axisy.max;
|
| + }
|
| +
|
| + // clip with xmin
|
| + if (x1 <= x2 && x1 < axisx.min) {
|
| + if (x2 < axisx.min)
|
| + continue;
|
| + y1 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1;
|
| + x1 = axisx.min;
|
| + }
|
| + else if (x2 <= x1 && x2 < axisx.min) {
|
| + if (x1 < axisx.min)
|
| + continue;
|
| + y2 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1;
|
| + x2 = axisx.min;
|
| + }
|
| +
|
| + // clip with xmax
|
| + if (x1 >= x2 && x1 > axisx.max) {
|
| + if (x2 > axisx.max)
|
| + continue;
|
| + y1 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1;
|
| + x1 = axisx.max;
|
| + }
|
| + else if (x2 >= x1 && x2 > axisx.max) {
|
| + if (x1 > axisx.max)
|
| + continue;
|
| + y2 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1;
|
| + x2 = axisx.max;
|
| + }
|
| +
|
| + if (x1 != prevx || y1 != prevy)
|
| + ctx.moveTo(axisx.p2c(x1) + xoffset, axisy.p2c(y1) + yoffset);
|
| +
|
| + prevx = x2;
|
| + prevy = y2;
|
| + ctx.lineTo(axisx.p2c(x2) + xoffset, axisy.p2c(y2) + yoffset);
|
| + }
|
| + ctx.stroke();
|
| + }
|
| +
|
| + function plotLineArea(datapoints, axisx, axisy) {
|
| + var points = datapoints.points,
|
| + ps = datapoints.pointsize,
|
| + bottom = Math.min(Math.max(0, axisy.min), axisy.max),
|
| + i = 0, top, areaOpen = false,
|
| + ypos = 1, segmentStart = 0, segmentEnd = 0;
|
| +
|
| + // we process each segment in two turns, first forward
|
| + // direction to sketch out top, then once we hit the
|
| + // end we go backwards to sketch the bottom
|
| + while (true) {
|
| + if (ps > 0 && i > points.length + ps)
|
| + break;
|
| +
|
| + i += ps; // ps is negative if going backwards
|
| +
|
| + var x1 = points[i - ps],
|
| + y1 = points[i - ps + ypos],
|
| + x2 = points[i], y2 = points[i + ypos];
|
| +
|
| + if (areaOpen) {
|
| + if (ps > 0 && x1 != null && x2 == null) {
|
| + // at turning point
|
| + segmentEnd = i;
|
| + ps = -ps;
|
| + ypos = 2;
|
| + continue;
|
| + }
|
| +
|
| + if (ps < 0 && i == segmentStart + ps) {
|
| + // done with the reverse sweep
|
| + ctx.fill();
|
| + areaOpen = false;
|
| + ps = -ps;
|
| + ypos = 1;
|
| + i = segmentStart = segmentEnd + ps;
|
| + continue;
|
| + }
|
| + }
|
| +
|
| + if (x1 == null || x2 == null)
|
| + continue;
|
| +
|
| + // clip x values
|
| +
|
| + // clip with xmin
|
| + if (x1 <= x2 && x1 < axisx.min) {
|
| + if (x2 < axisx.min)
|
| + continue;
|
| + y1 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1;
|
| + x1 = axisx.min;
|
| + }
|
| + else if (x2 <= x1 && x2 < axisx.min) {
|
| + if (x1 < axisx.min)
|
| + continue;
|
| + y2 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1;
|
| + x2 = axisx.min;
|
| + }
|
| +
|
| + // clip with xmax
|
| + if (x1 >= x2 && x1 > axisx.max) {
|
| + if (x2 > axisx.max)
|
| + continue;
|
| + y1 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1;
|
| + x1 = axisx.max;
|
| + }
|
| + else if (x2 >= x1 && x2 > axisx.max) {
|
| + if (x1 > axisx.max)
|
| + continue;
|
| + y2 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1;
|
| + x2 = axisx.max;
|
| + }
|
| +
|
| + if (!areaOpen) {
|
| + // open area
|
| + ctx.beginPath();
|
| + ctx.moveTo(axisx.p2c(x1), axisy.p2c(bottom));
|
| + areaOpen = true;
|
| + }
|
| +
|
| + // now first check the case where both is outside
|
| + if (y1 >= axisy.max && y2 >= axisy.max) {
|
| + ctx.lineTo(axisx.p2c(x1), axisy.p2c(axisy.max));
|
| + ctx.lineTo(axisx.p2c(x2), axisy.p2c(axisy.max));
|
| + continue;
|
| + }
|
| + else if (y1 <= axisy.min && y2 <= axisy.min) {
|
| + ctx.lineTo(axisx.p2c(x1), axisy.p2c(axisy.min));
|
| + ctx.lineTo(axisx.p2c(x2), axisy.p2c(axisy.min));
|
| + continue;
|
| + }
|
| +
|
| + // else it's a bit more complicated, there might
|
| + // be a flat maxed out rectangle first, then a
|
| + // triangular cutout or reverse; to find these
|
| + // keep track of the current x values
|
| + var x1old = x1, x2old = x2;
|
| +
|
| + // clip the y values, without shortcutting, we
|
| + // go through all cases in turn
|
| +
|
| + // clip with ymin
|
| + if (y1 <= y2 && y1 < axisy.min && y2 >= axisy.min) {
|
| + x1 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1;
|
| + y1 = axisy.min;
|
| + }
|
| + else if (y2 <= y1 && y2 < axisy.min && y1 >= axisy.min) {
|
| + x2 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1;
|
| + y2 = axisy.min;
|
| + }
|
| +
|
| + // clip with ymax
|
| + if (y1 >= y2 && y1 > axisy.max && y2 <= axisy.max) {
|
| + x1 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1;
|
| + y1 = axisy.max;
|
| + }
|
| + else if (y2 >= y1 && y2 > axisy.max && y1 <= axisy.max) {
|
| + x2 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1;
|
| + y2 = axisy.max;
|
| + }
|
| +
|
| + // if the x value was changed we got a rectangle
|
| + // to fill
|
| + if (x1 != x1old) {
|
| + ctx.lineTo(axisx.p2c(x1old), axisy.p2c(y1));
|
| + // it goes to (x1, y1), but we fill that below
|
| + }
|
| +
|
| + // fill triangular section, this sometimes result
|
| + // in redundant points if (x1, y1) hasn't changed
|
| + // from previous line to, but we just ignore that
|
| + ctx.lineTo(axisx.p2c(x1), axisy.p2c(y1));
|
| + ctx.lineTo(axisx.p2c(x2), axisy.p2c(y2));
|
| +
|
| + // fill the other rectangle if it's there
|
| + if (x2 != x2old) {
|
| + ctx.lineTo(axisx.p2c(x2), axisy.p2c(y2));
|
| + ctx.lineTo(axisx.p2c(x2old), axisy.p2c(y2));
|
| + }
|
| + }
|
| + }
|
| +
|
| + ctx.save();
|
| + ctx.translate(plotOffset.left, plotOffset.top);
|
| + ctx.lineJoin = "round";
|
| +
|
| + var lw = series.lines.lineWidth,
|
| + sw = series.shadowSize;
|
| + // FIXME: consider another form of shadow when filling is turned on
|
| + if (lw > 0 && sw > 0) {
|
| + // draw shadow as a thick and thin line with transparency
|
| + ctx.lineWidth = sw;
|
| + ctx.strokeStyle = "rgba(0,0,0,0.1)";
|
| + // position shadow at angle from the mid of line
|
| + var angle = Math.PI/18;
|
| + plotLine(series.datapoints, Math.sin(angle) * (lw/2 + sw/2), Math.cos(angle) * (lw/2 + sw/2), series.xaxis, series.yaxis);
|
| + ctx.lineWidth = sw/2;
|
| + plotLine(series.datapoints, Math.sin(angle) * (lw/2 + sw/4), Math.cos(angle) * (lw/2 + sw/4), series.xaxis, series.yaxis);
|
| + }
|
| +
|
| + ctx.lineWidth = lw;
|
| + ctx.strokeStyle = series.color;
|
| + var fillStyle = getFillStyle(series.lines, series.color, 0, plotHeight);
|
| + if (fillStyle) {
|
| + ctx.fillStyle = fillStyle;
|
| + plotLineArea(series.datapoints, series.xaxis, series.yaxis);
|
| + }
|
| +
|
| + if (lw > 0)
|
| + plotLine(series.datapoints, 0, 0, series.xaxis, series.yaxis);
|
| + ctx.restore();
|
| + }
|
| +
|
| + function drawSeriesPoints(series) {
|
| + function plotPoints(datapoints, radius, fillStyle, offset, shadow, axisx, axisy, symbol) {
|
| + var points = datapoints.points, ps = datapoints.pointsize;
|
| +
|
| + for (var i = 0; i < points.length; i += ps) {
|
| + var x = points[i], y = points[i + 1];
|
| + if (x == null || x < axisx.min || x > axisx.max || y < axisy.min || y > axisy.max)
|
| + continue;
|
| +
|
| + ctx.beginPath();
|
| + x = axisx.p2c(x);
|
| + y = axisy.p2c(y) + offset;
|
| + if (symbol == "circle")
|
| + ctx.arc(x, y, radius, 0, shadow ? Math.PI : Math.PI * 2, false);
|
| + else
|
| + symbol(ctx, x, y, radius, shadow);
|
| + ctx.closePath();
|
| +
|
| + if (fillStyle) {
|
| + ctx.fillStyle = fillStyle;
|
| + ctx.fill();
|
| + }
|
| + ctx.stroke();
|
| + }
|
| + }
|
| +
|
| + ctx.save();
|
| + ctx.translate(plotOffset.left, plotOffset.top);
|
| +
|
| + var lw = series.points.lineWidth,
|
| + sw = series.shadowSize,
|
| + radius = series.points.radius,
|
| + symbol = series.points.symbol;
|
| +
|
| + // If the user sets the line width to 0, we change it to a very
|
| + // small value. A line width of 0 seems to force the default of 1.
|
| + // Doing the conditional here allows the shadow setting to still be
|
| + // optional even with a lineWidth of 0.
|
| +
|
| + if( lw == 0 )
|
| + lw = 0.0001;
|
| +
|
| + if (lw > 0 && sw > 0) {
|
| + // draw shadow in two steps
|
| + var w = sw / 2;
|
| + ctx.lineWidth = w;
|
| + ctx.strokeStyle = "rgba(0,0,0,0.1)";
|
| + plotPoints(series.datapoints, radius, null, w + w/2, true,
|
| + series.xaxis, series.yaxis, symbol);
|
| +
|
| + ctx.strokeStyle = "rgba(0,0,0,0.2)";
|
| + plotPoints(series.datapoints, radius, null, w/2, true,
|
| + series.xaxis, series.yaxis, symbol);
|
| + }
|
| +
|
| + ctx.lineWidth = lw;
|
| + ctx.strokeStyle = series.color;
|
| + plotPoints(series.datapoints, radius,
|
| + getFillStyle(series.points, series.color), 0, false,
|
| + series.xaxis, series.yaxis, symbol);
|
| + ctx.restore();
|
| + }
|
| +
|
| + function drawBar(x, y, b, barLeft, barRight, fillStyleCallback, axisx, axisy, c, horizontal, lineWidth) {
|
| + var left, right, bottom, top,
|
| + drawLeft, drawRight, drawTop, drawBottom,
|
| + tmp;
|
| +
|
| + // in horizontal mode, we start the bar from the left
|
| + // instead of from the bottom so it appears to be
|
| + // horizontal rather than vertical
|
| + if (horizontal) {
|
| + drawBottom = drawRight = drawTop = true;
|
| + drawLeft = false;
|
| + left = b;
|
| + right = x;
|
| + top = y + barLeft;
|
| + bottom = y + barRight;
|
| +
|
| + // account for negative bars
|
| + if (right < left) {
|
| + tmp = right;
|
| + right = left;
|
| + left = tmp;
|
| + drawLeft = true;
|
| + drawRight = false;
|
| + }
|
| + }
|
| + else {
|
| + drawLeft = drawRight = drawTop = true;
|
| + drawBottom = false;
|
| + left = x + barLeft;
|
| + right = x + barRight;
|
| + bottom = b;
|
| + top = y;
|
| +
|
| + // account for negative bars
|
| + if (top < bottom) {
|
| + tmp = top;
|
| + top = bottom;
|
| + bottom = tmp;
|
| + drawBottom = true;
|
| + drawTop = false;
|
| + }
|
| + }
|
| +
|
| + // clip
|
| + if (right < axisx.min || left > axisx.max ||
|
| + top < axisy.min || bottom > axisy.max)
|
| + return;
|
| +
|
| + if (left < axisx.min) {
|
| + left = axisx.min;
|
| + drawLeft = false;
|
| + }
|
| +
|
| + if (right > axisx.max) {
|
| + right = axisx.max;
|
| + drawRight = false;
|
| + }
|
| +
|
| + if (bottom < axisy.min) {
|
| + bottom = axisy.min;
|
| + drawBottom = false;
|
| + }
|
| +
|
| + if (top > axisy.max) {
|
| + top = axisy.max;
|
| + drawTop = false;
|
| + }
|
| +
|
| + left = axisx.p2c(left);
|
| + bottom = axisy.p2c(bottom);
|
| + right = axisx.p2c(right);
|
| + top = axisy.p2c(top);
|
| +
|
| + // fill the bar
|
| + if (fillStyleCallback) {
|
| + c.fillStyle = fillStyleCallback(bottom, top);
|
| + c.fillRect(left, top, right - left, bottom - top)
|
| + }
|
| +
|
| + // draw outline
|
| + if (lineWidth > 0 && (drawLeft || drawRight || drawTop || drawBottom)) {
|
| + c.beginPath();
|
| +
|
| + // FIXME: inline moveTo is buggy with excanvas
|
| + c.moveTo(left, bottom);
|
| + if (drawLeft)
|
| + c.lineTo(left, top);
|
| + else
|
| + c.moveTo(left, top);
|
| + if (drawTop)
|
| + c.lineTo(right, top);
|
| + else
|
| + c.moveTo(right, top);
|
| + if (drawRight)
|
| + c.lineTo(right, bottom);
|
| + else
|
| + c.moveTo(right, bottom);
|
| + if (drawBottom)
|
| + c.lineTo(left, bottom);
|
| + else
|
| + c.moveTo(left, bottom);
|
| + c.stroke();
|
| + }
|
| + }
|
| +
|
| + function drawSeriesBars(series) {
|
| + function plotBars(datapoints, barLeft, barRight, fillStyleCallback, axisx, axisy) {
|
| + var points = datapoints.points, ps = datapoints.pointsize;
|
| +
|
| + for (var i = 0; i < points.length; i += ps) {
|
| + if (points[i] == null)
|
| + continue;
|
| + drawBar(points[i], points[i + 1], points[i + 2], barLeft, barRight, fillStyleCallback, axisx, axisy, ctx, series.bars.horizontal, series.bars.lineWidth);
|
| + }
|
| + }
|
| +
|
| + ctx.save();
|
| + ctx.translate(plotOffset.left, plotOffset.top);
|
| +
|
| + // FIXME: figure out a way to add shadows (for instance along the right edge)
|
| + ctx.lineWidth = series.bars.lineWidth;
|
| + ctx.strokeStyle = series.color;
|
| +
|
| + var barLeft;
|
| +
|
| + switch (series.bars.align) {
|
| + case "left":
|
| + barLeft = 0;
|
| + break;
|
| + case "right":
|
| + barLeft = -series.bars.barWidth;
|
| + break;
|
| + default:
|
| + barLeft = -series.bars.barWidth / 2;
|
| + }
|
| +
|
| + var fillStyleCallback = series.bars.fill ? function (bottom, top) { return getFillStyle(series.bars, series.color, bottom, top); } : null;
|
| + plotBars(series.datapoints, barLeft, barLeft + series.bars.barWidth, fillStyleCallback, series.xaxis, series.yaxis);
|
| + ctx.restore();
|
| + }
|
| +
|
| + function getFillStyle(filloptions, seriesColor, bottom, top) {
|
| + var fill = filloptions.fill;
|
| + if (!fill)
|
| + return null;
|
| +
|
| + if (filloptions.fillColor)
|
| + return getColorOrGradient(filloptions.fillColor, bottom, top, seriesColor);
|
| +
|
| + var c = $.color.parse(seriesColor);
|
| + c.a = typeof fill == "number" ? fill : 0.4;
|
| + c.normalize();
|
| + return c.toString();
|
| + }
|
| +
|
| + function insertLegend() {
|
| +
|
| + if (options.legend.container != null) {
|
| + $(options.legend.container).html("");
|
| + } else {
|
| + placeholder.find(".legend").remove();
|
| + }
|
| +
|
| + if (!options.legend.show) {
|
| + return;
|
| + }
|
| +
|
| + var fragments = [], entries = [], rowStarted = false,
|
| + lf = options.legend.labelFormatter, s, label;
|
| +
|
| + // Build a list of legend entries, with each having a label and a color
|
| +
|
| + for (var i = 0; i < series.length; ++i) {
|
| + s = series[i];
|
| + if (s.label) {
|
| + label = lf ? lf(s.label, s) : s.label;
|
| + if (label) {
|
| + entries.push({
|
| + label: label,
|
| + color: s.color
|
| + });
|
| + }
|
| + }
|
| + }
|
| +
|
| + // Sort the legend using either the default or a custom comparator
|
| +
|
| + if (options.legend.sorted) {
|
| + if ($.isFunction(options.legend.sorted)) {
|
| + entries.sort(options.legend.sorted);
|
| + } else if (options.legend.sorted == "reverse") {
|
| + entries.reverse();
|
| + } else {
|
| + var ascending = options.legend.sorted != "descending";
|
| + entries.sort(function(a, b) {
|
| + return a.label == b.label ? 0 : (
|
| + (a.label < b.label) != ascending ? 1 : -1 // Logical XOR
|
| + );
|
| + });
|
| + }
|
| + }
|
| +
|
| + // Generate markup for the list of entries, in their final order
|
| +
|
| + for (var i = 0; i < entries.length; ++i) {
|
| +
|
| + var entry = entries[i];
|
| +
|
| + if (i % options.legend.noColumns == 0) {
|
| + if (rowStarted)
|
| + fragments.push('</tr>');
|
| + fragments.push('<tr>');
|
| + rowStarted = true;
|
| + }
|
| +
|
| + fragments.push(
|
| + '<td class="legendColorBox"><div style="border:1px solid ' + options.legend.labelBoxBorderColor + ';padding:1px"><div style="width:4px;height:0;border:5px solid ' + entry.color + ';overflow:hidden"></div></div></td>' +
|
| + '<td class="legendLabel">' + entry.label + '</td>'
|
| + );
|
| + }
|
| +
|
| + if (rowStarted)
|
| + fragments.push('</tr>');
|
| +
|
| + if (fragments.length == 0)
|
| + return;
|
| +
|
| + var table = '<table style="font-size:smaller;color:' + options.grid.color + '">' + fragments.join("") + '</table>';
|
| + if (options.legend.container != null)
|
| + $(options.legend.container).html(table);
|
| + else {
|
| + var pos = "",
|
| + p = options.legend.position,
|
| + m = options.legend.margin;
|
| + if (m[0] == null)
|
| + m = [m, m];
|
| + if (p.charAt(0) == "n")
|
| + pos += 'top:' + (m[1] + plotOffset.top) + 'px;';
|
| + else if (p.charAt(0) == "s")
|
| + pos += 'bottom:' + (m[1] + plotOffset.bottom) + 'px;';
|
| + if (p.charAt(1) == "e")
|
| + pos += 'right:' + (m[0] + plotOffset.right) + 'px;';
|
| + else if (p.charAt(1) == "w")
|
| + pos += 'left:' + (m[0] + plotOffset.left) + 'px;';
|
| + var legend = $('<div class="legend">' + table.replace('style="', 'style="position:absolute;' + pos +';') + '</div>').appendTo(placeholder);
|
| + if (options.legend.backgroundOpacity != 0.0) {
|
| + // put in the transparent background
|
| + // separately to avoid blended labels and
|
| + // label boxes
|
| + var c = options.legend.backgroundColor;
|
| + if (c == null) {
|
| + c = options.grid.backgroundColor;
|
| + if (c && typeof c == "string")
|
| + c = $.color.parse(c);
|
| + else
|
| + c = $.color.extract(legend, 'background-color');
|
| + c.a = 1;
|
| + c = c.toString();
|
| + }
|
| + var div = legend.children();
|
| + $('<div style="position:absolute;width:' + div.width() + 'px;height:' + div.height() + 'px;' + pos +'background-color:' + c + ';"> </div>').prependTo(legend).css('opacity', options.legend.backgroundOpacity);
|
| + }
|
| + }
|
| + }
|
| +
|
| +
|
| + // interactive features
|
| +
|
| + var highlights = [],
|
| + redrawTimeout = null;
|
| +
|
| + // returns the data item the mouse is over, or null if none is found
|
| + function findNearbyItem(mouseX, mouseY, seriesFilter) {
|
| + var maxDistance = options.grid.mouseActiveRadius,
|
| + smallestDistance = maxDistance * maxDistance + 1,
|
| + item = null, foundPoint = false, i, j, ps;
|
| +
|
| + for (i = series.length - 1; i >= 0; --i) {
|
| + if (!seriesFilter(series[i]))
|
| + continue;
|
| +
|
| + var s = series[i],
|
| + axisx = s.xaxis,
|
| + axisy = s.yaxis,
|
| + points = s.datapoints.points,
|
| + mx = axisx.c2p(mouseX), // precompute some stuff to make the loop faster
|
| + my = axisy.c2p(mouseY),
|
| + maxx = maxDistance / axisx.scale,
|
| + maxy = maxDistance / axisy.scale;
|
| +
|
| + ps = s.datapoints.pointsize;
|
| + // with inverse transforms, we can't use the maxx/maxy
|
| + // optimization, sadly
|
| + if (axisx.options.inverseTransform)
|
| + maxx = Number.MAX_VALUE;
|
| + if (axisy.options.inverseTransform)
|
| + maxy = Number.MAX_VALUE;
|
| +
|
| + if (s.lines.show || s.points.show) {
|
| + for (j = 0; j < points.length; j += ps) {
|
| + var x = points[j], y = points[j + 1];
|
| + if (x == null)
|
| + continue;
|
| +
|
| + // For points and lines, the cursor must be within a
|
| + // certain distance to the data point
|
| + if (x - mx > maxx || x - mx < -maxx ||
|
| + y - my > maxy || y - my < -maxy)
|
| + continue;
|
| +
|
| + // We have to calculate distances in pixels, not in
|
| + // data units, because the scales of the axes may be different
|
| + var dx = Math.abs(axisx.p2c(x) - mouseX),
|
| + dy = Math.abs(axisy.p2c(y) - mouseY),
|
| + dist = dx * dx + dy * dy; // we save the sqrt
|
| +
|
| + // use <= to ensure last point takes precedence
|
| + // (last generally means on top of)
|
| + if (dist < smallestDistance) {
|
| + smallestDistance = dist;
|
| + item = [i, j / ps];
|
| + }
|
| + }
|
| + }
|
| +
|
| + if (s.bars.show && !item) { // no other point can be nearby
|
| +
|
| + var barLeft, barRight;
|
| +
|
| + switch (s.bars.align) {
|
| + case "left":
|
| + barLeft = 0;
|
| + break;
|
| + case "right":
|
| + barLeft = -s.bars.barWidth;
|
| + break;
|
| + default:
|
| + barLeft = -s.bars.barWidth / 2;
|
| + }
|
| +
|
| + barRight = barLeft + s.bars.barWidth;
|
| +
|
| + for (j = 0; j < points.length; j += ps) {
|
| + var x = points[j], y = points[j + 1], b = points[j + 2];
|
| + if (x == null)
|
| + continue;
|
| +
|
| + // for a bar graph, the cursor must be inside the bar
|
| + if (series[i].bars.horizontal ?
|
| + (mx <= Math.max(b, x) && mx >= Math.min(b, x) &&
|
| + my >= y + barLeft && my <= y + barRight) :
|
| + (mx >= x + barLeft && mx <= x + barRight &&
|
| + my >= Math.min(b, y) && my <= Math.max(b, y)))
|
| + item = [i, j / ps];
|
| + }
|
| + }
|
| + }
|
| +
|
| + if (item) {
|
| + i = item[0];
|
| + j = item[1];
|
| + ps = series[i].datapoints.pointsize;
|
| +
|
| + return { datapoint: series[i].datapoints.points.slice(j * ps, (j + 1) * ps),
|
| + dataIndex: j,
|
| + series: series[i],
|
| + seriesIndex: i };
|
| + }
|
| +
|
| + return null;
|
| + }
|
| +
|
| + function onMouseMove(e) {
|
| + if (options.grid.hoverable)
|
| + triggerClickHoverEvent("plothover", e,
|
| + function (s) { return s["hoverable"] != false; });
|
| + }
|
| +
|
| + function onMouseLeave(e) {
|
| + if (options.grid.hoverable)
|
| + triggerClickHoverEvent("plothover", e,
|
| + function (s) { return false; });
|
| + }
|
| +
|
| + function onClick(e) {
|
| + triggerClickHoverEvent("plotclick", e,
|
| + function (s) { return s["clickable"] != false; });
|
| + }
|
| +
|
| + // trigger click or hover event (they send the same parameters
|
| + // so we share their code)
|
| + function triggerClickHoverEvent(eventname, event, seriesFilter) {
|
| + var offset = eventHolder.offset(),
|
| + canvasX = event.pageX - offset.left - plotOffset.left,
|
| + canvasY = event.pageY - offset.top - plotOffset.top,
|
| + pos = canvasToAxisCoords({ left: canvasX, top: canvasY });
|
| +
|
| + pos.pageX = event.pageX;
|
| + pos.pageY = event.pageY;
|
| +
|
| + var item = findNearbyItem(canvasX, canvasY, seriesFilter);
|
| +
|
| + if (item) {
|
| + // fill in mouse pos for any listeners out there
|
| + item.pageX = parseInt(item.series.xaxis.p2c(item.datapoint[0]) + offset.left + plotOffset.left, 10);
|
| + item.pageY = parseInt(item.series.yaxis.p2c(item.datapoint[1]) + offset.top + plotOffset.top, 10);
|
| + }
|
| +
|
| + if (options.grid.autoHighlight) {
|
| + // clear auto-highlights
|
| + for (var i = 0; i < highlights.length; ++i) {
|
| + var h = highlights[i];
|
| + if (h.auto == eventname &&
|
| + !(item && h.series == item.series &&
|
| + h.point[0] == item.datapoint[0] &&
|
| + h.point[1] == item.datapoint[1]))
|
| + unhighlight(h.series, h.point);
|
| + }
|
| +
|
| + if (item)
|
| + highlight(item.series, item.datapoint, eventname);
|
| + }
|
| +
|
| + placeholder.trigger(eventname, [ pos, item ]);
|
| + }
|
| +
|
| + function triggerRedrawOverlay() {
|
| + var t = options.interaction.redrawOverlayInterval;
|
| + if (t == -1) { // skip event queue
|
| + drawOverlay();
|
| + return;
|
| + }
|
| +
|
| + if (!redrawTimeout)
|
| + redrawTimeout = setTimeout(drawOverlay, t);
|
| + }
|
| +
|
| + function drawOverlay() {
|
| + redrawTimeout = null;
|
| +
|
| + // draw highlights
|
| + octx.save();
|
| + overlay.clear();
|
| + octx.translate(plotOffset.left, plotOffset.top);
|
| +
|
| + var i, hi;
|
| + for (i = 0; i < highlights.length; ++i) {
|
| + hi = highlights[i];
|
| +
|
| + if (hi.series.bars.show)
|
| + drawBarHighlight(hi.series, hi.point);
|
| + else
|
| + drawPointHighlight(hi.series, hi.point);
|
| + }
|
| + octx.restore();
|
| +
|
| + executeHooks(hooks.drawOverlay, [octx]);
|
| + }
|
| +
|
| + function highlight(s, point, auto) {
|
| + if (typeof s == "number")
|
| + s = series[s];
|
| +
|
| + if (typeof point == "number") {
|
| + var ps = s.datapoints.pointsize;
|
| + point = s.datapoints.points.slice(ps * point, ps * (point + 1));
|
| + }
|
| +
|
| + var i = indexOfHighlight(s, point);
|
| + if (i == -1) {
|
| + highlights.push({ series: s, point: point, auto: auto });
|
| +
|
| + triggerRedrawOverlay();
|
| + }
|
| + else if (!auto)
|
| + highlights[i].auto = false;
|
| + }
|
| +
|
| + function unhighlight(s, point) {
|
| + if (s == null && point == null) {
|
| + highlights = [];
|
| + triggerRedrawOverlay();
|
| + return;
|
| + }
|
| +
|
| + if (typeof s == "number")
|
| + s = series[s];
|
| +
|
| + if (typeof point == "number") {
|
| + var ps = s.datapoints.pointsize;
|
| + point = s.datapoints.points.slice(ps * point, ps * (point + 1));
|
| + }
|
| +
|
| + var i = indexOfHighlight(s, point);
|
| + if (i != -1) {
|
| + highlights.splice(i, 1);
|
| +
|
| + triggerRedrawOverlay();
|
| + }
|
| + }
|
| +
|
| + function indexOfHighlight(s, p) {
|
| + for (var i = 0; i < highlights.length; ++i) {
|
| + var h = highlights[i];
|
| + if (h.series == s && h.point[0] == p[0]
|
| + && h.point[1] == p[1])
|
| + return i;
|
| + }
|
| + return -1;
|
| + }
|
| +
|
| + function drawPointHighlight(series, point) {
|
| + var x = point[0], y = point[1],
|
| + axisx = series.xaxis, axisy = series.yaxis,
|
| + highlightColor = (typeof series.highlightColor === "string") ? series.highlightColor : $.color.parse(series.color).scale('a', 0.5).toString();
|
| +
|
| + if (x < axisx.min || x > axisx.max || y < axisy.min || y > axisy.max)
|
| + return;
|
| +
|
| + var pointRadius = series.points.radius + series.points.lineWidth / 2;
|
| + octx.lineWidth = pointRadius;
|
| + octx.strokeStyle = highlightColor;
|
| + var radius = 1.5 * pointRadius;
|
| + x = axisx.p2c(x);
|
| + y = axisy.p2c(y);
|
| +
|
| + octx.beginPath();
|
| + if (series.points.symbol == "circle")
|
| + octx.arc(x, y, radius, 0, 2 * Math.PI, false);
|
| + else
|
| + series.points.symbol(octx, x, y, radius, false);
|
| + octx.closePath();
|
| + octx.stroke();
|
| + }
|
| +
|
| + function drawBarHighlight(series, point) {
|
| + var highlightColor = (typeof series.highlightColor === "string") ? series.highlightColor : $.color.parse(series.color).scale('a', 0.5).toString(),
|
| + fillStyle = highlightColor,
|
| + barLeft;
|
| +
|
| + switch (series.bars.align) {
|
| + case "left":
|
| + barLeft = 0;
|
| + break;
|
| + case "right":
|
| + barLeft = -series.bars.barWidth;
|
| + break;
|
| + default:
|
| + barLeft = -series.bars.barWidth / 2;
|
| + }
|
| +
|
| + octx.lineWidth = series.bars.lineWidth;
|
| + octx.strokeStyle = highlightColor;
|
| +
|
| + drawBar(point[0], point[1], point[2] || 0, barLeft, barLeft + series.bars.barWidth,
|
| + function () { return fillStyle; }, series.xaxis, series.yaxis, octx, series.bars.horizontal, series.bars.lineWidth);
|
| + }
|
| +
|
| + function getColorOrGradient(spec, bottom, top, defaultColor) {
|
| + if (typeof spec == "string")
|
| + return spec;
|
| + else {
|
| + // assume this is a gradient spec; IE currently only
|
| + // supports a simple vertical gradient properly, so that's
|
| + // what we support too
|
| + var gradient = ctx.createLinearGradient(0, top, 0, bottom);
|
| +
|
| + for (var i = 0, l = spec.colors.length; i < l; ++i) {
|
| + var c = spec.colors[i];
|
| + if (typeof c != "string") {
|
| + var co = $.color.parse(defaultColor);
|
| + if (c.brightness != null)
|
| + co = co.scale('rgb', c.brightness);
|
| + if (c.opacity != null)
|
| + co.a *= c.opacity;
|
| + c = co.toString();
|
| + }
|
| + gradient.addColorStop(i / (l - 1), c);
|
| + }
|
| +
|
| + return gradient;
|
| + }
|
| + }
|
| + }
|
| +
|
| + // Add the plot function to the top level of the jQuery object
|
| +
|
| + $.plot = function(placeholder, data, options) {
|
| + //var t0 = new Date();
|
| + var plot = new Plot($(placeholder), data, options, $.plot.plugins);
|
| + //(window.console ? console.log : alert)("time used (msecs): " + ((new Date()).getTime() - t0.getTime()));
|
| + return plot;
|
| + };
|
| +
|
| + $.plot.version = "0.8.3";
|
| +
|
| + $.plot.plugins = [];
|
| +
|
| + // Also add the plot function as a chainable property
|
| +
|
| + $.fn.plot = function(data, options) {
|
| + return this.each(function() {
|
| + $.plot(this, data, options);
|
| + });
|
| + };
|
| +
|
| + // round to nearby lower multiple of base
|
| + function floorInBase(n, base) {
|
| + return base * Math.floor(n / base);
|
| + }
|
| +
|
| +})(jQuery);
|
|
|
Chromium Code Reviews
Issue 1235773002:
Add jquery and flot to catapult/third_party. (Closed)
Base URL: git@github.com:catapult-project/catapult.git@master