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8133 lines
278 KiB
JavaScript
8133 lines
278 KiB
JavaScript
2 years ago
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/* Javascript plotting library for jQuery, version 0.8.3.
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Copyright (c) 2007-2014 IOLA and Ole Laursen.
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Licensed under the MIT license.
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*/
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// first an inline dependency, jquery.colorhelpers.js, we inline it here
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// for convenience
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/* Plugin for jQuery for working with colors.
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*
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* Version 1.1.
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*
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* Inspiration from jQuery color animation plugin by John Resig.
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*
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* Released under the MIT license by Ole Laursen, October 2009.
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*
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* Examples:
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*
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* $.color.parse("#fff").scale('rgb', 0.25).add('a', -0.5).toString()
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* var c = $.color.extract($("#mydiv"), 'background-color');
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* console.log(c.r, c.g, c.b, c.a);
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* $.color.make(100, 50, 25, 0.4).toString() // returns "rgba(100,50,25,0.4)"
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*
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* Note that .scale() and .add() return the same modified object
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* instead of making a new one.
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*
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* V. 1.1: Fix error handling so e.g. parsing an empty string does
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* produce a color rather than just crashing.
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*/
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(function($){$.color={};$.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=$.trim(str).toLowerCase();if(name=="transparent")return m(255,255,255,0);else{res=lookupColors[name]||[0,0,0];return m(res[0],res[1],res[2])}};var lookupColors={aqua:[0,255,255],azure:[240,255,255],beige:[245,245,220],black:[0,0,0],blue:[0,0,255],brown:[165,42,42],cyan:[0,255,255],darkblue:[0,0,139],darkcyan:[0,139,139],darkgrey:[169,169,169],darkgreen:[0,100,0],darkkhaki:[189,183,107],darkmagenta:[139,0,139],darkolivegreen:[85,107,47],darkorange:[255,140,0],darkorchid:[153,50,204],darkred:[139,0,0],darksalmon:[233,150,122],darkviolet:[148,0,211],fuchsia:[255,0,255],gold:[255,215,0],green:[0,128,0],indigo:[75,0,130],khaki:[240,230,140],lightblue:[173,216,230],lightcyan:[224,255,255],lightgreen:[144,238,144],lightgrey:[211,211,211],lightpink:[255,182,193],lightyellow:[255,255,224],lime:[0,255,0],magenta:[255,0,255],maroon:[128,0,0],navy:[0,0,128],olive:[128,128,0],orange:[255,165,0],pink:[255,192,203],purple:[128,0,128],violet:[128,0,128],red:[255,0,0],silver:[192,192,192],white:[255,255,255],yellow:[255,255,0]}})(jQuery);
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// the actual Flot code
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(function($) {
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// Cache the prototype hasOwnProperty for faster access
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var hasOwnProperty = Object.prototype.hasOwnProperty;
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// A shim to provide 'detach' to jQuery versions prior to 1.4. Using a DOM
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// operation produces the same effect as detach, i.e. removing the element
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// without touching its jQuery data.
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// Do not merge this into Flot 0.9, since it requires jQuery 1.4.4+.
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if (!$.fn.detach) {
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$.fn.detach = function() {
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return this.each(function() {
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if (this.parentNode) {
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this.parentNode.removeChild( this );
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}
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});
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};
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}
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///////////////////////////////////////////////////////////////////////////
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// The Canvas object is a wrapper around an HTML5 <canvas> tag.
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//
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// @constructor
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// @param {string} cls List of classes to apply to the canvas.
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// @param {element} container Element onto which to append the canvas.
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//
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// Requiring a container is a little iffy, but unfortunately canvas
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// operations don't work unless the canvas is attached to the DOM.
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function Canvas(cls, container) {
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var element = container.children("." + cls)[0];
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if (element == null) {
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element = document.createElement("canvas");
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element.className = cls;
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$(element).css({ direction: "ltr", position: "absolute", left: 0, top: 0 })
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.appendTo(container);
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// If HTML5 Canvas isn't available, fall back to [Ex|Flash]canvas
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if (!element.getContext) {
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if (window.G_vmlCanvasManager) {
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element = window.G_vmlCanvasManager.initElement(element);
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} else {
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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.");
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}
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}
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}
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this.element = element;
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var context = this.context = element.getContext("2d");
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// Determine the screen's ratio of physical to device-independent
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// pixels. This is the ratio between the canvas width that the browser
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// advertises and the number of pixels actually present in that space.
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// The iPhone 4, for example, has a device-independent width of 320px,
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// but its screen is actually 640px wide. It therefore has a pixel
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// ratio of 2, while most normal devices have a ratio of 1.
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var devicePixelRatio = window.devicePixelRatio || 1,
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backingStoreRatio =
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context.webkitBackingStorePixelRatio ||
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context.mozBackingStorePixelRatio ||
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context.msBackingStorePixelRatio ||
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context.oBackingStorePixelRatio ||
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context.backingStorePixelRatio || 1;
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this.pixelRatio = devicePixelRatio / backingStoreRatio;
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// Size the canvas to match the internal dimensions of its container
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this.resize(container.width(), container.height());
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// Collection of HTML div layers for text overlaid onto the canvas
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this.textContainer = null;
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this.text = {};
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// Cache of text fragments and metrics, so we can avoid expensively
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// re-calculating them when the plot is re-rendered in a loop.
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this._textCache = {};
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}
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// Resizes the canvas to the given dimensions.
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//
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// @param {number} width New width of the canvas, in pixels.
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// @param {number} width New height of the canvas, in pixels.
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Canvas.prototype.resize = function(width, height) {
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if (width <= 0 || height <= 0) {
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throw new Error("Invalid dimensions for plot, width = " + width + ", height = " + height);
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}
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var element = this.element,
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context = this.context,
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pixelRatio = this.pixelRatio;
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// Resize the canvas, increasing its density based on the display's
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// pixel ratio; basically giving it more pixels without increasing the
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// size of its element, to take advantage of the fact that retina
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// displays have that many more pixels in the same advertised space.
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// Resizing should reset the state (excanvas seems to be buggy though)
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if (this.width != width) {
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element.width = width * pixelRatio;
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element.style.width = width + "px";
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this.width = width;
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}
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if (this.height != height) {
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element.height = height * pixelRatio;
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element.style.height = height + "px";
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this.height = height;
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}
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// Save the context, so we can reset in case we get replotted. The
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// restore ensure that we're really back at the initial state, and
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// should be safe even if we haven't saved the initial state yet.
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context.restore();
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context.save();
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// Scale the coordinate space to match the display density; so even though we
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// may have twice as many pixels, we still want lines and other drawing to
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// appear at the same size; the extra pixels will just make them crisper.
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context.scale(pixelRatio, pixelRatio);
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};
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// Clears the entire canvas area, not including any overlaid HTML text
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Canvas.prototype.clear = function() {
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this.context.clearRect(0, 0, this.width, this.height);
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};
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// Finishes rendering the canvas, including managing the text overlay.
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Canvas.prototype.render = function() {
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var cache = this._textCache;
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// For each text layer, add elements marked as active that haven't
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// already been rendered, and remove those that are no longer active.
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for (var layerKey in cache) {
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if (hasOwnProperty.call(cache, layerKey)) {
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var layer = this.getTextLayer(layerKey),
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layerCache = cache[layerKey];
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layer.hide();
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for (var styleKey in layerCache) {
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if (hasOwnProperty.call(layerCache, styleKey)) {
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var styleCache = layerCache[styleKey];
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for (var key in styleCache) {
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if (hasOwnProperty.call(styleCache, key)) {
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var positions = styleCache[key].positions;
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for (var i = 0, position; position = positions[i]; i++) {
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if (position.active) {
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if (!position.rendered) {
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layer.append(position.element);
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position.rendered = true;
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}
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} else {
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positions.splice(i--, 1);
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if (position.rendered) {
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position.element.detach();
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}
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}
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}
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if (positions.length == 0) {
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delete styleCache[key];
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}
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}
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}
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}
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}
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layer.show();
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}
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}
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};
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// Creates (if necessary) and returns the text overlay container.
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//
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// @param {string} classes String of space-separated CSS classes used to
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// uniquely identify the text layer.
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// @return {object} The jQuery-wrapped text-layer div.
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Canvas.prototype.getTextLayer = function(classes) {
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var layer = this.text[classes];
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// Create the text layer if it doesn't exist
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if (layer == null) {
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// Create the text layer container, if it doesn't exist
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if (this.textContainer == null) {
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this.textContainer = $("<div class='flot-text'></div>")
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.css({
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position: "absolute",
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top: 0,
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left: 0,
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bottom: 0,
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right: 0,
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'font-size': "smaller",
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color: "#545454"
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})
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.insertAfter(this.element);
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}
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layer = this.text[classes] = $("<div></div>")
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.addClass(classes)
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.css({
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position: "absolute",
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top: 0,
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left: 0,
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bottom: 0,
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right: 0
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})
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.appendTo(this.textContainer);
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}
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return layer;
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};
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// Creates (if necessary) and returns a text info object.
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//
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// The object looks like this:
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//
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// {
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// width: Width of the text's wrapper div.
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// height: Height of the text's wrapper div.
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// element: The jQuery-wrapped HTML div containing the text.
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// positions: Array of positions at which this text is drawn.
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// }
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//
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// The positions array contains objects that look like this:
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//
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||
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// {
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// active: Flag indicating whether the text should be visible.
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// rendered: Flag indicating whether the text is currently visible.
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||
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// element: The jQuery-wrapped HTML div containing the text.
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// x: X coordinate at which to draw the text.
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// y: Y coordinate at which to draw the text.
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// }
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//
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// Each position after the first receives a clone of the original element.
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//
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// The idea is that that the width, height, and general 'identity' of the
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||
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// text is constant no matter where it is placed; the placements are a
|
||
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// secondary property.
|
||
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//
|
||
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// Canvas maintains a cache of recently-used text info objects; getTextInfo
|
||
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// either returns the cached element or creates a new entry.
|
||
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//
|
||
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// @param {string} layer A string of space-separated CSS classes uniquely
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||
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// identifying the layer containing this text.
|
||
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// @param {string} text Text string to retrieve info for.
|
||
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// @param {(string|object)=} font Either a string of space-separated CSS
|
||
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// classes or a font-spec object, defining the text's font and style.
|
||
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// @param {number=} angle Angle at which to rotate the text, in degrees.
|
||
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// Angle is currently unused, it will be implemented in the future.
|
||
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// @param {number=} width Maximum width of the text before it wraps.
|
||
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// @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);
|
||
|
|
|
||
|
|
/* 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 = {};
|
||
|
|
|
||
|
|
// construct color object with some convenient chainable helpers
|
||
|
|
$.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 >= 1.0) {
|
||
|
|
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();
|
||
|
|
}
|
||
|
|
|
||
|
|
// extract CSS color property from element, going up in the DOM
|
||
|
|
// if it's "transparent"
|
||
|
|
$.color.extract = function (elem, css) {
|
||
|
|
var c;
|
||
|
|
|
||
|
|
do {
|
||
|
|
c = elem.css(css).toLowerCase();
|
||
|
|
// keep going until we find an element that has color, or
|
||
|
|
// we hit the body or root (have no parent)
|
||
|
|
if (c != '' && c != 'transparent')
|
||
|
|
break;
|
||
|
|
elem = elem.parent();
|
||
|
|
} while (elem.length && !$.nodeName(elem.get(0), "body"));
|
||
|
|
|
||
|
|
// catch Safari's way of signalling transparent
|
||
|
|
if (c == "rgba(0, 0, 0, 0)")
|
||
|
|
c = "transparent";
|
||
|
|
|
||
|
|
return $.color.parse(c);
|
||
|
|
}
|
||
|
|
|
||
|
|
// parse CSS color string (like "rgb(10, 32, 43)" or "#fff"),
|
||
|
|
// returns color object, if parsing failed, you get black (0, 0,
|
||
|
|
// 0) out
|
||
|
|
$.color.parse = function (str) {
|
||
|
|
var res, m = $.color.make;
|
||
|
|
|
||
|
|
// Look for rgb(num,num,num)
|
||
|
|
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));
|
||
|
|
|
||
|
|
// Look for rgba(num,num,num,num)
|
||
|
|
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]));
|
||
|
|
|
||
|
|
// Look for rgb(num%,num%,num%)
|
||
|
|
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);
|
||
|
|
|
||
|
|
// Look for rgba(num%,num%,num%,num)
|
||
|
|
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]));
|
||
|
|
|
||
|
|
// Look for #a0b1c2
|
||
|
|
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));
|
||
|
|
|
||
|
|
// Look for #fff
|
||
|
|
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));
|
||
|
|
|
||
|
|
// Otherwise, we're most likely dealing with a named color
|
||
|
|
var name = $.trim(str).toLowerCase();
|
||
|
|
if (name == "transparent")
|
||
|
|
return m(255, 255, 255, 0);
|
||
|
|
else {
|
||
|
|
// default to black
|
||
|
|
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);
|
||
|
|
|
||
|
|
/* Flot plugin for drawing all elements of a plot on the canvas.
|
||
|
|
|
||
|
|
Copyright (c) 2007-2014 IOLA and Ole Laursen.
|
||
|
|
Licensed under the MIT license.
|
||
|
|
|
||
|
|
Flot normally produces certain elements, like axis labels and the legend, using
|
||
|
|
HTML elements. This permits greater interactivity and customization, and often
|
||
|
|
looks better, due to cross-browser canvas text inconsistencies and limitations.
|
||
|
|
|
||
|
|
It can also be desirable to render the plot entirely in canvas, particularly
|
||
|
|
if the goal is to save it as an image, or if Flot is being used in a context
|
||
|
|
where the HTML DOM does not exist, as is the case within Node.js. This plugin
|
||
|
|
switches out Flot's standard drawing operations for canvas-only replacements.
|
||
|
|
|
||
|
|
Currently the plugin supports only axis labels, but it will eventually allow
|
||
|
|
every element of the plot to be rendered directly to canvas.
|
||
|
|
|
||
|
|
The plugin supports these options:
|
||
|
|
|
||
|
|
{
|
||
|
|
canvas: boolean
|
||
|
|
}
|
||
|
|
|
||
|
|
The "canvas" option controls whether full canvas drawing is enabled, making it
|
||
|
|
possible to toggle on and off. This is useful when a plot uses HTML text in the
|
||
|
|
browser, but needs to redraw with canvas text when exporting as an image.
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
(function($) {
|
||
|
|
|
||
|
|
var options = {
|
||
|
|
canvas: true
|
||
|
|
};
|
||
|
|
|
||
|
|
var render, getTextInfo, addText;
|
||
|
|
|
||
|
|
// Cache the prototype hasOwnProperty for faster access
|
||
|
|
|
||
|
|
var hasOwnProperty = Object.prototype.hasOwnProperty;
|
||
|
|
|
||
|
|
function init(plot, classes) {
|
||
|
|
|
||
|
|
var Canvas = classes.Canvas;
|
||
|
|
|
||
|
|
// We only want to replace the functions once; the second time around
|
||
|
|
// we would just get our new function back. This whole replacing of
|
||
|
|
// prototype functions is a disaster, and needs to be changed ASAP.
|
||
|
|
|
||
|
|
if (render == null) {
|
||
|
|
getTextInfo = Canvas.prototype.getTextInfo,
|
||
|
|
addText = Canvas.prototype.addText,
|
||
|
|
render = Canvas.prototype.render;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Finishes rendering the canvas, including overlaid text
|
||
|
|
|
||
|
|
Canvas.prototype.render = function() {
|
||
|
|
|
||
|
|
if (!plot.getOptions().canvas) {
|
||
|
|
return render.call(this);
|
||
|
|
}
|
||
|
|
|
||
|
|
var context = this.context,
|
||
|
|
cache = this._textCache;
|
||
|
|
|
||
|
|
// For each text layer, render elements marked as active
|
||
|
|
|
||
|
|
context.save();
|
||
|
|
context.textBaseline = "middle";
|
||
|
|
|
||
|
|
for (var layerKey in cache) {
|
||
|
|
if (hasOwnProperty.call(cache, layerKey)) {
|
||
|
|
var layerCache = cache[layerKey];
|
||
|
|
for (var styleKey in layerCache) {
|
||
|
|
if (hasOwnProperty.call(layerCache, styleKey)) {
|
||
|
|
var styleCache = layerCache[styleKey],
|
||
|
|
updateStyles = true;
|
||
|
|
for (var key in styleCache) {
|
||
|
|
if (hasOwnProperty.call(styleCache, key)) {
|
||
|
|
|
||
|
|
var info = styleCache[key],
|
||
|
|
positions = info.positions,
|
||
|
|
lines = info.lines;
|
||
|
|
|
||
|
|
// Since every element at this level of the cache have the
|
||
|
|
// same font and fill styles, we can just change them once
|
||
|
|
// using the values from the first element.
|
||
|
|
|
||
|
|
if (updateStyles) {
|
||
|
|
context.fillStyle = info.font.color;
|
||
|
|
context.font = info.font.definition;
|
||
|
|
updateStyles = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (var i = 0, position; position = positions[i]; i++) {
|
||
|
|
if (position.active) {
|
||
|
|
for (var j = 0, line; line = position.lines[j]; j++) {
|
||
|
|
context.fillText(lines[j].text, line[0], line[1]);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
positions.splice(i--, 1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (positions.length == 0) {
|
||
|
|
delete styleCache[key];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
context.restore();
|
||
|
|
};
|
||
|
|
|
||
|
|
// Creates (if necessary) and returns a text info object.
|
||
|
|
//
|
||
|
|
// When the canvas option is set, the object looks like this:
|
||
|
|
//
|
||
|
|
// {
|
||
|
|
// width: Width of the text's bounding box.
|
||
|
|
// height: Height of the text's bounding box.
|
||
|
|
// positions: Array of positions at which this text is drawn.
|
||
|
|
// lines: [{
|
||
|
|
// height: Height of this line.
|
||
|
|
// widths: Width of this line.
|
||
|
|
// text: Text on this line.
|
||
|
|
// }],
|
||
|
|
// font: {
|
||
|
|
// definition: Canvas font property string.
|
||
|
|
// color: Color of the text.
|
||
|
|
// },
|
||
|
|
// }
|
||
|
|
//
|
||
|
|
// The positions array contains objects that look like this:
|
||
|
|
//
|
||
|
|
// {
|
||
|
|
// active: Flag indicating whether the text should be visible.
|
||
|
|
// lines: Array of [x, y] coordinates at which to draw the line.
|
||
|
|
// x: X coordinate at which to draw the text.
|
||
|
|
// y: Y coordinate at which to draw the text.
|
||
|
|
// }
|
||
|
|
|
||
|
|
Canvas.prototype.getTextInfo = function(layer, text, font, angle, width) {
|
||
|
|
|
||
|
|
if (!plot.getOptions().canvas) {
|
||
|
|
return getTextInfo.call(this, layer, text, font, angle, width);
|
||
|
|
}
|
||
|
|
|
||
|
|
var textStyle, layerCache, styleCache, info;
|
||
|
|
|
||
|
|
// Cast the value to a string, in case we were given a number
|
||
|
|
|
||
|
|
text = "" + text;
|
||
|
|
|
||
|
|
// If the font is a font-spec object, generate a CSS definition
|
||
|
|
|
||
|
|
if (typeof font === "object") {
|
||
|
|
textStyle = font.style + " " + font.variant + " " + font.weight + " " + font.size + "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 (info == null) {
|
||
|
|
|
||
|
|
var context = this.context;
|
||
|
|
|
||
|
|
// If the font was provided as CSS, create a div with those
|
||
|
|
// classes and examine it to generate a canvas font spec.
|
||
|
|
|
||
|
|
if (typeof font !== "object") {
|
||
|
|
|
||
|
|
var element = $("<div> </div>")
|
||
|
|
.css("position", "absolute")
|
||
|
|
.addClass(typeof font === "string" ? font : null)
|
||
|
|
.appendTo(this.getTextLayer(layer));
|
||
|
|
|
||
|
|
font = {
|
||
|
|
lineHeight: element.height(),
|
||
|
|
style: element.css("font-style"),
|
||
|
|
variant: element.css("font-variant"),
|
||
|
|
weight: element.css("font-weight"),
|
||
|
|
family: element.css("font-family"),
|
||
|
|
color: element.css("color")
|
||
|
|
};
|
||
|
|
|
||
|
|
// Config line-height to 1, without units, sets it equal
|
||
|
|
// to the font-size, even if the font-size is abstract,
|
||
|
|
// like 'smaller'. This enables us to read the real size
|
||
|
|
// via the element's height, working around browsers that
|
||
|
|
// return the literal 'smaller' value.
|
||
|
|
|
||
|
|
font.size = element.css("line-height", 1).height();
|
||
|
|
|
||
|
|
element.remove();
|
||
|
|
}
|
||
|
|
|
||
|
|
textStyle = font.style + " " + font.variant + " " + font.weight + " " + font.size + "px " + font.family;
|
||
|
|
|
||
|
|
// Create a new info object, initializing the dimensions to
|
||
|
|
// zero so we can count them up line-by-line.
|
||
|
|
|
||
|
|
info = styleCache[text] = {
|
||
|
|
width: 0,
|
||
|
|
height: 0,
|
||
|
|
positions: [],
|
||
|
|
lines: [],
|
||
|
|
font: {
|
||
|
|
definition: textStyle,
|
||
|
|
color: font.color
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
context.save();
|
||
|
|
context.font = textStyle;
|
||
|
|
|
||
|
|
// Canvas can't handle multi-line strings; break on various
|
||
|
|
// newlines, including HTML brs, to build a list of lines.
|
||
|
|
// Note that we could split directly on regexps, but IE < 9 is
|
||
|
|
// broken; revisit when we drop IE 7/8 support.
|
||
|
|
|
||
|
|
var lines = (text + "").replace(/<br ?\/?>|\r\n|\r/g, "\n").split("\n");
|
||
|
|
|
||
|
|
for (var i = 0; i < lines.length; ++i) {
|
||
|
|
|
||
|
|
var lineText = lines[i],
|
||
|
|
measured = context.measureText(lineText);
|
||
|
|
|
||
|
|
info.width = Math.max(measured.width, info.width);
|
||
|
|
info.height += font.lineHeight;
|
||
|
|
|
||
|
|
info.lines.push({
|
||
|
|
text: lineText,
|
||
|
|
width: measured.width,
|
||
|
|
height: font.lineHeight
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
context.restore();
|
||
|
|
}
|
||
|
|
|
||
|
|
return info;
|
||
|
|
};
|
||
|
|
|
||
|
|
// Adds a text string to the canvas text overlay.
|
||
|
|
|
||
|
|
Canvas.prototype.addText = function(layer, x, y, text, font, angle, width, halign, valign) {
|
||
|
|
|
||
|
|
if (!plot.getOptions().canvas) {
|
||
|
|
return addText.call(this, layer, x, y, text, font, angle, width, halign, valign);
|
||
|
|
}
|
||
|
|
|
||
|
|
var info = this.getTextInfo(layer, text, font, angle, width),
|
||
|
|
positions = info.positions,
|
||
|
|
lines = info.lines;
|
||
|
|
|
||
|
|
// Text is drawn with baseline 'middle', which we need to account
|
||
|
|
// for by adding half a line's height to the y position.
|
||
|
|
|
||
|
|
y += info.height / lines.length / 2;
|
||
|
|
|
||
|
|
// Tweak the initial y-position to match vertical alignment
|
||
|
|
|
||
|
|
if (valign == "middle") {
|
||
|
|
y = Math.round(y - info.height / 2);
|
||
|
|
} else if (valign == "bottom") {
|
||
|
|
y = Math.round(y - info.height);
|
||
|
|
} else {
|
||
|
|
y = Math.round(y);
|
||
|
|
}
|
||
|
|
|
||
|
|
// FIXME: LEGACY BROWSER FIX
|
||
|
|
// AFFECTS: Opera < 12.00
|
||
|
|
|
||
|
|
// Offset the y coordinate, since Opera is off pretty
|
||
|
|
// consistently compared to the other browsers.
|
||
|
|
|
||
|
|
if (!!(window.opera && window.opera.version().split(".")[0] < 12)) {
|
||
|
|
y -= 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
// 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
|
||
|
|
|
||
|
|
position = {
|
||
|
|
active: true,
|
||
|
|
lines: [],
|
||
|
|
x: x,
|
||
|
|
y: y
|
||
|
|
};
|
||
|
|
|
||
|
|
positions.push(position);
|
||
|
|
|
||
|
|
// Fill in the x & y positions of each line, adjusting them
|
||
|
|
// individually for horizontal alignment.
|
||
|
|
|
||
|
|
for (var i = 0, line; line = lines[i]; i++) {
|
||
|
|
if (halign == "center") {
|
||
|
|
position.lines.push([Math.round(x - line.width / 2), y]);
|
||
|
|
} else if (halign == "right") {
|
||
|
|
position.lines.push([Math.round(x - line.width), y]);
|
||
|
|
} else {
|
||
|
|
position.lines.push([Math.round(x), y]);
|
||
|
|
}
|
||
|
|
y += line.height;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
$.plot.plugins.push({
|
||
|
|
init: init,
|
||
|
|
options: options,
|
||
|
|
name: "canvas",
|
||
|
|
version: "1.0"
|
||
|
|
});
|
||
|
|
|
||
|
|
})(jQuery);
|
||
|
|
|
||
|
|
/* Flot plugin for plotting textual data or categories.
|
||
|
|
|
||
|
|
Copyright (c) 2007-2014 IOLA and Ole Laursen.
|
||
|
|
Licensed under the MIT license.
|
||
|
|
|
||
|
|
Consider a dataset like [["February", 34], ["March", 20], ...]. This plugin
|
||
|
|
allows you to plot such a dataset directly.
|
||
|
|
|
||
|
|
To enable it, you must specify mode: "categories" on the axis with the textual
|
||
|
|
labels, e.g.
|
||
|
|
|
||
|
|
$.plot("#placeholder", data, { xaxis: { mode: "categories" } });
|
||
|
|
|
||
|
|
By default, the labels are ordered as they are met in the data series. If you
|
||
|
|
need a different ordering, you can specify "categories" on the axis options
|
||
|
|
and list the categories there:
|
||
|
|
|
||
|
|
xaxis: {
|
||
|
|
mode: "categories",
|
||
|
|
categories: ["February", "March", "April"]
|
||
|
|
}
|
||
|
|
|
||
|
|
If you need to customize the distances between the categories, you can specify
|
||
|
|
"categories" as an object mapping labels to values
|
||
|
|
|
||
|
|
xaxis: {
|
||
|
|
mode: "categories",
|
||
|
|
categories: { "February": 1, "March": 3, "April": 4 }
|
||
|
|
}
|
||
|
|
|
||
|
|
If you don't specify all categories, the remaining categories will be numbered
|
||
|
|
from the max value plus 1 (with a spacing of 1 between each).
|
||
|
|
|
||
|
|
Internally, the plugin works by transforming the input data through an auto-
|
||
|
|
generated mapping where the first category becomes 0, the second 1, etc.
|
||
|
|
Hence, a point like ["February", 34] becomes [0, 34] internally in Flot (this
|
||
|
|
is visible in hover and click events that return numbers rather than the
|
||
|
|
category labels). The plugin also overrides the tick generator to spit out the
|
||
|
|
categories as ticks instead of the values.
|
||
|
|
|
||
|
|
If you need to map a value back to its label, the mapping is always accessible
|
||
|
|
as "categories" on the axis object, e.g. plot.getAxes().xaxis.categories.
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
(function ($) {
|
||
|
|
var options = {
|
||
|
|
xaxis: {
|
||
|
|
categories: null
|
||
|
|
},
|
||
|
|
yaxis: {
|
||
|
|
categories: null
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
function processRawData(plot, series, data, datapoints) {
|
||
|
|
// if categories are enabled, we need to disable
|
||
|
|
// auto-transformation to numbers so the strings are intact
|
||
|
|
// for later processing
|
||
|
|
|
||
|
|
var xCategories = series.xaxis.options.mode == "categories",
|
||
|
|
yCategories = series.yaxis.options.mode == "categories";
|
||
|
|
|
||
|
|
if (!(xCategories || yCategories))
|
||
|
|
return;
|
||
|
|
|
||
|
|
var format = datapoints.format;
|
||
|
|
|
||
|
|
if (!format) {
|
||
|
|
// FIXME: auto-detection should really not be defined here
|
||
|
|
var s = series;
|
||
|
|
format = [];
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
datapoints.format = format;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (var m = 0; m < format.length; ++m) {
|
||
|
|
if (format[m].x && xCategories)
|
||
|
|
format[m].number = false;
|
||
|
|
|
||
|
|
if (format[m].y && yCategories)
|
||
|
|
format[m].number = false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function getNextIndex(categories) {
|
||
|
|
var index = -1;
|
||
|
|
|
||
|
|
for (var v in categories)
|
||
|
|
if (categories[v] > index)
|
||
|
|
index = categories[v];
|
||
|
|
|
||
|
|
return index + 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
function categoriesTickGenerator(axis) {
|
||
|
|
var res = [];
|
||
|
|
for (var label in axis.categories) {
|
||
|
|
var v = axis.categories[label];
|
||
|
|
if (v >= axis.min && v <= axis.max)
|
||
|
|
res.push([v, label]);
|
||
|
|
}
|
||
|
|
|
||
|
|
res.sort(function (a, b) { return a[0] - b[0]; });
|
||
|
|
|
||
|
|
return res;
|
||
|
|
}
|
||
|
|
|
||
|
|
function setupCategoriesForAxis(series, axis, datapoints) {
|
||
|
|
if (series[axis].options.mode != "categories")
|
||
|
|
return;
|
||
|
|
|
||
|
|
if (!series[axis].categories) {
|
||
|
|
// parse options
|
||
|
|
var c = {}, o = series[axis].options.categories || {};
|
||
|
|
if ($.isArray(o)) {
|
||
|
|
for (var i = 0; i < o.length; ++i)
|
||
|
|
c[o[i]] = i;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
for (var v in o)
|
||
|
|
c[v] = o[v];
|
||
|
|
}
|
||
|
|
|
||
|
|
series[axis].categories = c;
|
||
|
|
}
|
||
|
|
|
||
|
|
// fix ticks
|
||
|
|
if (!series[axis].options.ticks)
|
||
|
|
series[axis].options.ticks = categoriesTickGenerator;
|
||
|
|
|
||
|
|
transformPointsOnAxis(datapoints, axis, series[axis].categories);
|
||
|
|
}
|
||
|
|
|
||
|
|
function transformPointsOnAxis(datapoints, axis, categories) {
|
||
|
|
// go through the points, transforming them
|
||
|
|
var points = datapoints.points,
|
||
|
|
ps = datapoints.pointsize,
|
||
|
|
format = datapoints.format,
|
||
|
|
formatColumn = axis.charAt(0),
|
||
|
|
index = getNextIndex(categories);
|
||
|
|
|
||
|
|
for (var i = 0; i < points.length; i += ps) {
|
||
|
|
if (points[i] == null)
|
||
|
|
continue;
|
||
|
|
|
||
|
|
for (var m = 0; m < ps; ++m) {
|
||
|
|
var val = points[i + m];
|
||
|
|
|
||
|
|
if (val == null || !format[m][formatColumn])
|
||
|
|
continue;
|
||
|
|
|
||
|
|
if (!(val in categories)) {
|
||
|
|
categories[val] = index;
|
||
|
|
++index;
|
||
|
|
}
|
||
|
|
|
||
|
|
points[i + m] = categories[val];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function processDatapoints(plot, series, datapoints) {
|
||
|
|
setupCategoriesForAxis(series, "xaxis", datapoints);
|
||
|
|
setupCategoriesForAxis(series, "yaxis", datapoints);
|
||
|
|
}
|
||
|
|
|
||
|
|
function init(plot) {
|
||
|
|
plot.hooks.processRawData.push(processRawData);
|
||
|
|
plot.hooks.processDatapoints.push(processDatapoints);
|
||
|
|
}
|
||
|
|
|
||
|
|
$.plot.plugins.push({
|
||
|
|
init: init,
|
||
|
|
options: options,
|
||
|
|
name: 'categories',
|
||
|
|
version: '1.0'
|
||
|
|
});
|
||
|
|
})(jQuery);
|
||
|
|
|
||
|
|
/* Flot plugin for showing crosshairs when the mouse hovers over the plot.
|
||
|
|
|
||
|
|
Copyright (c) 2007-2014 IOLA and Ole Laursen.
|
||
|
|
Licensed under the MIT license.
|
||
|
|
|
||
|
|
The plugin supports these options:
|
||
|
|
|
||
|
|
crosshair: {
|
||
|
|
mode: null or "x" or "y" or "xy"
|
||
|
|
color: color
|
||
|
|
lineWidth: number
|
||
|
|
}
|
||
|
|
|
||
|
|
Set the mode to one of "x", "y" or "xy". The "x" mode enables a vertical
|
||
|
|
crosshair that lets you trace the values on the x axis, "y" enables a
|
||
|
|
horizontal crosshair and "xy" enables them both. "color" is the color of the
|
||
|
|
crosshair (default is "rgba(170, 0, 0, 0.80)"), "lineWidth" is the width of
|
||
|
|
the drawn lines (default is 1).
|
||
|
|
|
||
|
|
The plugin also adds four public methods:
|
||
|
|
|
||
|
|
- setCrosshair( pos )
|
||
|
|
|
||
|
|
Set the position of the crosshair. Note that this is cleared if the user
|
||
|
|
moves the mouse. "pos" is in coordinates of the plot and should be on the
|
||
|
|
form { x: xpos, y: ypos } (you can use x2/x3/... if you're using multiple
|
||
|
|
axes), which is coincidentally the same format as what you get from a
|
||
|
|
"plothover" event. If "pos" is null, the crosshair is cleared.
|
||
|
|
|
||
|
|
- clearCrosshair()
|
||
|
|
|
||
|
|
Clear the crosshair.
|
||
|
|
|
||
|
|
- lockCrosshair(pos)
|
||
|
|
|
||
|
|
Cause the crosshair to lock to the current location, no longer updating if
|
||
|
|
the user moves the mouse. Optionally supply a position (passed on to
|
||
|
|
setCrosshair()) to move it to.
|
||
|
|
|
||
|
|
Example usage:
|
||
|
|
|
||
|
|
var myFlot = $.plot( $("#graph"), ..., { crosshair: { mode: "x" } } };
|
||
|
|
$("#graph").bind( "plothover", function ( evt, position, item ) {
|
||
|
|
if ( item ) {
|
||
|
|
// Lock the crosshair to the data point being hovered
|
||
|
|
myFlot.lockCrosshair({
|
||
|
|
x: item.datapoint[ 0 ],
|
||
|
|
y: item.datapoint[ 1 ]
|
||
|
|
});
|
||
|
|
} else {
|
||
|
|
// Return normal crosshair operation
|
||
|
|
myFlot.unlockCrosshair();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
- unlockCrosshair()
|
||
|
|
|
||
|
|
Free the crosshair to move again after locking it.
|
||
|
|
*/
|
||
|
|
|
||
|
|
(function ($) {
|
||
|
|
var options = {
|
||
|
|
crosshair: {
|
||
|
|
mode: null, // one of null, "x", "y" or "xy",
|
||
|
|
color: "rgba(170, 0, 0, 0.80)",
|
||
|
|
lineWidth: 1
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
function init(plot) {
|
||
|
|
// position of crosshair in pixels
|
||
|
|
var crosshair = { x: -1, y: -1, locked: false };
|
||
|
|
|
||
|
|
plot.setCrosshair = function setCrosshair(pos) {
|
||
|
|
if (!pos)
|
||
|
|
crosshair.x = -1;
|
||
|
|
else {
|
||
|
|
var o = plot.p2c(pos);
|
||
|
|
crosshair.x = Math.max(0, Math.min(o.left, plot.width()));
|
||
|
|
crosshair.y = Math.max(0, Math.min(o.top, plot.height()));
|
||
|
|
}
|
||
|
|
|
||
|
|
plot.triggerRedrawOverlay();
|
||
|
|
};
|
||
|
|
|
||
|
|
plot.clearCrosshair = plot.setCrosshair; // passes null for pos
|
||
|
|
|
||
|
|
plot.lockCrosshair = function lockCrosshair(pos) {
|
||
|
|
if (pos)
|
||
|
|
plot.setCrosshair(pos);
|
||
|
|
crosshair.locked = true;
|
||
|
|
};
|
||
|
|
|
||
|
|
plot.unlockCrosshair = function unlockCrosshair() {
|
||
|
|
crosshair.locked = false;
|
||
|
|
};
|
||
|
|
|
||
|
|
function onMouseOut(e) {
|
||
|
|
if (crosshair.locked)
|
||
|
|
return;
|
||
|
|
|
||
|
|
if (crosshair.x != -1) {
|
||
|
|
crosshair.x = -1;
|
||
|
|
plot.triggerRedrawOverlay();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function onMouseMove(e) {
|
||
|
|
if (crosshair.locked)
|
||
|
|
return;
|
||
|
|
|
||
|
|
if (plot.getSelection && plot.getSelection()) {
|
||
|
|
crosshair.x = -1; // hide the crosshair while selecting
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
var offset = plot.offset();
|
||
|
|
crosshair.x = Math.max(0, Math.min(e.pageX - offset.left, plot.width()));
|
||
|
|
crosshair.y = Math.max(0, Math.min(e.pageY - offset.top, plot.height()));
|
||
|
|
plot.triggerRedrawOverlay();
|
||
|
|
}
|
||
|
|
|
||
|
|
plot.hooks.bindEvents.push(function (plot, eventHolder) {
|
||
|
|
if (!plot.getOptions().crosshair.mode)
|
||
|
|
return;
|
||
|
|
|
||
|
|
eventHolder.mouseout(onMouseOut);
|
||
|
|
eventHolder.mousemove(onMouseMove);
|
||
|
|
});
|
||
|
|
|
||
|
|
plot.hooks.drawOverlay.push(function (plot, ctx) {
|
||
|
|
var c = plot.getOptions().crosshair;
|
||
|
|
if (!c.mode)
|
||
|
|
return;
|
||
|
|
|
||
|
|
var plotOffset = plot.getPlotOffset();
|
||
|
|
|
||
|
|
ctx.save();
|
||
|
|
ctx.translate(plotOffset.left, plotOffset.top);
|
||
|
|
|
||
|
|
if (crosshair.x != -1) {
|
||
|
|
var adj = plot.getOptions().crosshair.lineWidth % 2 ? 0.5 : 0;
|
||
|
|
|
||
|
|
ctx.strokeStyle = c.color;
|
||
|
|
ctx.lineWidth = c.lineWidth;
|
||
|
|
ctx.lineJoin = "round";
|
||
|
|
|
||
|
|
ctx.beginPath();
|
||
|
|
if (c.mode.indexOf("x") != -1) {
|
||
|
|
var drawX = Math.floor(crosshair.x) + adj;
|
||
|
|
ctx.moveTo(drawX, 0);
|
||
|
|
ctx.lineTo(drawX, plot.height());
|
||
|
|
}
|
||
|
|
if (c.mode.indexOf("y") != -1) {
|
||
|
|
var drawY = Math.floor(crosshair.y) + adj;
|
||
|
|
ctx.moveTo(0, drawY);
|
||
|
|
ctx.lineTo(plot.width(), drawY);
|
||
|
|
}
|
||
|
|
ctx.stroke();
|
||
|
|
}
|
||
|
|
ctx.restore();
|
||
|
|
});
|
||
|
|
|
||
|
|
plot.hooks.shutdown.push(function (plot, eventHolder) {
|
||
|
|
eventHolder.unbind("mouseout", onMouseOut);
|
||
|
|
eventHolder.unbind("mousemove", onMouseMove);
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
$.plot.plugins.push({
|
||
|
|
init: init,
|
||
|
|
options: options,
|
||
|
|
name: 'crosshair',
|
||
|
|
version: '1.0'
|
||
|
|
});
|
||
|
|
})(jQuery);
|
||
|
|
|
||
|
|
/* Flot plugin for plotting error bars.
|
||
|
|
|
||
|
|
Copyright (c) 2007-2014 IOLA and Ole Laursen.
|
||
|
|
Licensed under the MIT license.
|
||
|
|
|
||
|
|
Error bars are used to show standard deviation and other statistical
|
||
|
|
properties in a plot.
|
||
|
|
|
||
|
|
* Created by Rui Pereira - rui (dot) pereira (at) gmail (dot) com
|
||
|
|
|
||
|
|
This plugin allows you to plot error-bars over points. Set "errorbars" inside
|
||
|
|
the points series to the axis name over which there will be error values in
|
||
|
|
your data array (*even* if you do not intend to plot them later, by setting
|
||
|
|
"show: null" on xerr/yerr).
|
||
|
|
|
||
|
|
The plugin supports these options:
|
||
|
|
|
||
|
|
series: {
|
||
|
|
points: {
|
||
|
|
errorbars: "x" or "y" or "xy",
|
||
|
|
xerr: {
|
||
|
|
show: null/false or true,
|
||
|
|
asymmetric: null/false or true,
|
||
|
|
upperCap: null or "-" or function,
|
||
|
|
lowerCap: null or "-" or function,
|
||
|
|
color: null or color,
|
||
|
|
radius: null or number
|
||
|
|
},
|
||
|
|
yerr: { same options as xerr }
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
Each data point array is expected to be of the type:
|
||
|
|
|
||
|
|
"x" [ x, y, xerr ]
|
||
|
|
"y" [ x, y, yerr ]
|
||
|
|
"xy" [ x, y, xerr, yerr ]
|
||
|
|
|
||
|
|
Where xerr becomes xerr_lower,xerr_upper for the asymmetric error case, and
|
||
|
|
equivalently for yerr. Eg., a datapoint for the "xy" case with symmetric
|
||
|
|
error-bars on X and asymmetric on Y would be:
|
||
|
|
|
||
|
|
[ x, y, xerr, yerr_lower, yerr_upper ]
|
||
|
|
|
||
|
|
By default no end caps are drawn. Config upperCap and/or lowerCap to "-" will
|
||
|
|
draw a small cap perpendicular to the error bar. They can also be set to a
|
||
|
|
user-defined drawing function, with (ctx, x, y, radius) as parameters, as eg.
|
||
|
|
|
||
|
|
function drawSemiCircle( ctx, x, y, radius ) {
|
||
|
|
ctx.beginPath();
|
||
|
|
ctx.arc( x, y, radius, 0, Math.PI, false );
|
||
|
|
ctx.moveTo( x - radius, y );
|
||
|
|
ctx.lineTo( x + radius, y );
|
||
|
|
ctx.stroke();
|
||
|
|
}
|
||
|
|
|
||
|
|
Color and radius both default to the same ones of the points series if not
|
||
|
|
set. The independent radius parameter on xerr/yerr is useful for the case when
|
||
|
|
we may want to add error-bars to a line, without showing the interconnecting
|
||
|
|
points (with radius: 0), and still showing end caps on the error-bars.
|
||
|
|
shadowSize and lineWidth are derived as well from the points series.
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
(function ($) {
|
||
|
|
var options = {
|
||
|
|
series: {
|
||
|
|
points: {
|
||
|
|
errorbars: null, //should be 'x', 'y' or 'xy'
|
||
|
|
xerr: { err: 'x', show: null, asymmetric: null, upperCap: null, lowerCap: null, color: null, radius: null},
|
||
|
|
yerr: { err: 'y', show: null, asymmetric: null, upperCap: null, lowerCap: null, color: null, radius: null}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
function processRawData(plot, series, data, datapoints){
|
||
|
|
if (!series.points.errorbars)
|
||
|
|
return;
|
||
|
|
|
||
|
|
// x,y values
|
||
|
|
var format = [
|
||
|
|
{ x: true, number: true, required: true },
|
||
|
|
{ y: true, number: true, required: true }
|
||
|
|
];
|
||
|
|
|
||
|
|
var errors = series.points.errorbars;
|
||
|
|
// error bars - first X then Y
|
||
|
|
if (errors == 'x' || errors == 'xy') {
|
||
|
|
// lower / upper error
|
||
|
|
if (series.points.xerr.asymmetric) {
|
||
|
|
format.push({ x: true, number: true, required: true });
|
||
|
|
format.push({ x: true, number: true, required: true });
|
||
|
|
} else
|
||
|
|
format.push({ x: true, number: true, required: true });
|
||
|
|
}
|
||
|
|
if (errors == 'y' || errors == 'xy') {
|
||
|
|
// lower / upper error
|
||
|
|
if (series.points.yerr.asymmetric) {
|
||
|
|
format.push({ y: true, number: true, required: true });
|
||
|
|
format.push({ y: true, number: true, required: true });
|
||
|
|
} else
|
||
|
|
format.push({ y: true, number: true, required: true });
|
||
|
|
}
|
||
|
|
datapoints.format = format;
|
||
|
|
}
|
||
|
|
|
||
|
|
function parseErrors(series, i){
|
||
|
|
|
||
|
|
var points = series.datapoints.points;
|
||
|
|
|
||
|
|
// read errors from points array
|
||
|
|
var exl = null,
|
||
|
|
exu = null,
|
||
|
|
eyl = null,
|
||
|
|
eyu = null;
|
||
|
|
var xerr = series.points.xerr,
|
||
|
|
yerr = series.points.yerr;
|
||
|
|
|
||
|
|
var eb = series.points.errorbars;
|
||
|
|
// error bars - first X
|
||
|
|
if (eb == 'x' || eb == 'xy') {
|
||
|
|
if (xerr.asymmetric) {
|
||
|
|
exl = points[i + 2];
|
||
|
|
exu = points[i + 3];
|
||
|
|
if (eb == 'xy')
|
||
|
|
if (yerr.asymmetric){
|
||
|
|
eyl = points[i + 4];
|
||
|
|
eyu = points[i + 5];
|
||
|
|
} else eyl = points[i + 4];
|
||
|
|
} else {
|
||
|
|
exl = points[i + 2];
|
||
|
|
if (eb == 'xy')
|
||
|
|
if (yerr.asymmetric) {
|
||
|
|
eyl = points[i + 3];
|
||
|
|
eyu = points[i + 4];
|
||
|
|
} else eyl = points[i + 3];
|
||
|
|
}
|
||
|
|
// only Y
|
||
|
|
} else if (eb == 'y')
|
||
|
|
if (yerr.asymmetric) {
|
||
|
|
eyl = points[i + 2];
|
||
|
|
eyu = points[i + 3];
|
||
|
|
} else eyl = points[i + 2];
|
||
|
|
|
||
|
|
// symmetric errors?
|
||
|
|
if (exu == null) exu = exl;
|
||
|
|
if (eyu == null) eyu = eyl;
|
||
|
|
|
||
|
|
var errRanges = [exl, exu, eyl, eyu];
|
||
|
|
// nullify if not showing
|
||
|
|
if (!xerr.show){
|
||
|
|
errRanges[0] = null;
|
||
|
|
errRanges[1] = null;
|
||
|
|
}
|
||
|
|
if (!yerr.show){
|
||
|
|
errRanges[2] = null;
|
||
|
|
errRanges[3] = null;
|
||
|
|
}
|
||
|
|
return errRanges;
|
||
|
|
}
|
||
|
|
|
||
|
|
function drawSeriesErrors(plot, ctx, s){
|
||
|
|
|
||
|
|
var points = s.datapoints.points,
|
||
|
|
ps = s.datapoints.pointsize,
|
||
|
|
ax = [s.xaxis, s.yaxis],
|
||
|
|
radius = s.points.radius,
|
||
|
|
err = [s.points.xerr, s.points.yerr];
|
||
|
|
|
||
|
|
//sanity check, in case some inverted axis hack is applied to flot
|
||
|
|
var invertX = false;
|
||
|
|
if (ax[0].p2c(ax[0].max) < ax[0].p2c(ax[0].min)) {
|
||
|
|
invertX = true;
|
||
|
|
var tmp = err[0].lowerCap;
|
||
|
|
err[0].lowerCap = err[0].upperCap;
|
||
|
|
err[0].upperCap = tmp;
|
||
|
|
}
|
||
|
|
|
||
|
|
var invertY = false;
|
||
|
|
if (ax[1].p2c(ax[1].min) < ax[1].p2c(ax[1].max)) {
|
||
|
|
invertY = true;
|
||
|
|
var tmp = err[1].lowerCap;
|
||
|
|
err[1].lowerCap = err[1].upperCap;
|
||
|
|
err[1].upperCap = tmp;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (var i = 0; i < s.datapoints.points.length; i += ps) {
|
||
|
|
|
||
|
|
//parse
|
||
|
|
var errRanges = parseErrors(s, i);
|
||
|
|
|
||
|
|
//cycle xerr & yerr
|
||
|
|
for (var e = 0; e < err.length; e++){
|
||
|
|
|
||
|
|
var minmax = [ax[e].min, ax[e].max];
|
||
|
|
|
||
|
|
//draw this error?
|
||
|
|
if (errRanges[e * err.length]){
|
||
|
|
|
||
|
|
//data coordinates
|
||
|
|
var x = points[i],
|
||
|
|
y = points[i + 1];
|
||
|
|
|
||
|
|
//errorbar ranges
|
||
|
|
var upper = [x, y][e] + errRanges[e * err.length + 1],
|
||
|
|
lower = [x, y][e] - errRanges[e * err.length];
|
||
|
|
|
||
|
|
//points outside of the canvas
|
||
|
|
if (err[e].err == 'x')
|
||
|
|
if (y > ax[1].max || y < ax[1].min || upper < ax[0].min || lower > ax[0].max)
|
||
|
|
continue;
|
||
|
|
if (err[e].err == 'y')
|
||
|
|
if (x > ax[0].max || x < ax[0].min || upper < ax[1].min || lower > ax[1].max)
|
||
|
|
continue;
|
||
|
|
|
||
|
|
// prevent errorbars getting out of the canvas
|
||
|
|
var drawUpper = true,
|
||
|
|
drawLower = true;
|
||
|
|
|
||
|
|
if (upper > minmax[1]) {
|
||
|
|
drawUpper = false;
|
||
|
|
upper = minmax[1];
|
||
|
|
}
|
||
|
|
if (lower < minmax[0]) {
|
||
|
|
drawLower = false;
|
||
|
|
lower = minmax[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
//sanity check, in case some inverted axis hack is applied to flot
|
||
|
|
if ((err[e].err == 'x' && invertX) || (err[e].err == 'y' && invertY)) {
|
||
|
|
//swap coordinates
|
||
|
|
var tmp = lower;
|
||
|
|
lower = upper;
|
||
|
|
upper = tmp;
|
||
|
|
tmp = drawLower;
|
||
|
|
drawLower = drawUpper;
|
||
|
|
drawUpper = tmp;
|
||
|
|
tmp = minmax[0];
|
||
|
|
minmax[0] = minmax[1];
|
||
|
|
minmax[1] = tmp;
|
||
|
|
}
|
||
|
|
|
||
|
|
// convert to pixels
|
||
|
|
x = ax[0].p2c(x),
|
||
|
|
y = ax[1].p2c(y),
|
||
|
|
upper = ax[e].p2c(upper);
|
||
|
|
lower = ax[e].p2c(lower);
|
||
|
|
minmax[0] = ax[e].p2c(minmax[0]);
|
||
|
|
minmax[1] = ax[e].p2c(minmax[1]);
|
||
|
|
|
||
|
|
//same style as points by default
|
||
|
|
var lw = err[e].lineWidth ? err[e].lineWidth : s.points.lineWidth,
|
||
|
|
sw = s.points.shadowSize != null ? s.points.shadowSize : s.shadowSize;
|
||
|
|
|
||
|
|
//shadow as for points
|
||
|
|
if (lw > 0 && sw > 0) {
|
||
|
|
var w = sw / 2;
|
||
|
|
ctx.lineWidth = w;
|
||
|
|
ctx.strokeStyle = "rgba(0,0,0,0.1)";
|
||
|
|
drawError(ctx, err[e], x, y, upper, lower, drawUpper, drawLower, radius, w + w/2, minmax);
|
||
|
|
|
||
|
|
ctx.strokeStyle = "rgba(0,0,0,0.2)";
|
||
|
|
drawError(ctx, err[e], x, y, upper, lower, drawUpper, drawLower, radius, w/2, minmax);
|
||
|
|
}
|
||
|
|
|
||
|
|
ctx.strokeStyle = err[e].color? err[e].color: s.color;
|
||
|
|
ctx.lineWidth = lw;
|
||
|
|
//draw it
|
||
|
|
drawError(ctx, err[e], x, y, upper, lower, drawUpper, drawLower, radius, 0, minmax);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function drawError(ctx,err,x,y,upper,lower,drawUpper,drawLower,radius,offset,minmax){
|
||
|
|
|
||
|
|
//shadow offset
|
||
|
|
y += offset;
|
||
|
|
upper += offset;
|
||
|
|
lower += offset;
|
||
|
|
|
||
|
|
// error bar - avoid plotting over circles
|
||
|
|
if (err.err == 'x'){
|
||
|
|
if (upper > x + radius) drawPath(ctx, [[upper,y],[Math.max(x + radius,minmax[0]),y]]);
|
||
|
|
else drawUpper = false;
|
||
|
|
if (lower < x - radius) drawPath(ctx, [[Math.min(x - radius,minmax[1]),y],[lower,y]] );
|
||
|
|
else drawLower = false;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
if (upper < y - radius) drawPath(ctx, [[x,upper],[x,Math.min(y - radius,minmax[0])]] );
|
||
|
|
else drawUpper = false;
|
||
|
|
if (lower > y + radius) drawPath(ctx, [[x,Math.max(y + radius,minmax[1])],[x,lower]] );
|
||
|
|
else drawLower = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
//internal radius value in errorbar, allows to plot radius 0 points and still keep proper sized caps
|
||
|
|
//this is a way to get errorbars on lines without visible connecting dots
|
||
|
|
radius = err.radius != null? err.radius: radius;
|
||
|
|
|
||
|
|
// upper cap
|
||
|
|
if (drawUpper) {
|
||
|
|
if (err.upperCap == '-'){
|
||
|
|
if (err.err=='x') drawPath(ctx, [[upper,y - radius],[upper,y + radius]] );
|
||
|
|
else drawPath(ctx, [[x - radius,upper],[x + radius,upper]] );
|
||
|
|
} else if ($.isFunction(err.upperCap)){
|
||
|
|
if (err.err=='x') err.upperCap(ctx, upper, y, radius);
|
||
|
|
else err.upperCap(ctx, x, upper, radius);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// lower cap
|
||
|
|
if (drawLower) {
|
||
|
|
if (err.lowerCap == '-'){
|
||
|
|
if (err.err=='x') drawPath(ctx, [[lower,y - radius],[lower,y + radius]] );
|
||
|
|
else drawPath(ctx, [[x - radius,lower],[x + radius,lower]] );
|
||
|
|
} else if ($.isFunction(err.lowerCap)){
|
||
|
|
if (err.err=='x') err.lowerCap(ctx, lower, y, radius);
|
||
|
|
else err.lowerCap(ctx, x, lower, radius);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function drawPath(ctx, pts){
|
||
|
|
ctx.beginPath();
|
||
|
|
ctx.moveTo(pts[0][0], pts[0][1]);
|
||
|
|
for (var p=1; p < pts.length; p++)
|
||
|
|
ctx.lineTo(pts[p][0], pts[p][1]);
|
||
|
|
ctx.stroke();
|
||
|
|
}
|
||
|
|
|
||
|
|
function draw(plot, ctx){
|
||
|
|
var plotOffset = plot.getPlotOffset();
|
||
|
|
|
||
|
|
ctx.save();
|
||
|
|
ctx.translate(plotOffset.left, plotOffset.top);
|
||
|
|
$.each(plot.getData(), function (i, s) {
|
||
|
|
if (s.points.errorbars && (s.points.xerr.show || s.points.yerr.show))
|
||
|
|
drawSeriesErrors(plot, ctx, s);
|
||
|
|
});
|
||
|
|
ctx.restore();
|
||
|
|
}
|
||
|
|
|
||
|
|
function init(plot) {
|
||
|
|
plot.hooks.processRawData.push(processRawData);
|
||
|
|
plot.hooks.draw.push(draw);
|
||
|
|
}
|
||
|
|
|
||
|
|
$.plot.plugins.push({
|
||
|
|
init: init,
|
||
|
|
options: options,
|
||
|
|
name: 'errorbars',
|
||
|
|
version: '1.0'
|
||
|
|
});
|
||
|
|
})(jQuery);
|
||
|
|
|
||
|
|
/* Flot plugin for computing bottoms for filled line and bar charts.
|
||
|
|
|
||
|
|
Copyright (c) 2007-2014 IOLA and Ole Laursen.
|
||
|
|
Licensed under the MIT license.
|
||
|
|
|
||
|
|
The case: you've got two series that you want to fill the area between. In Flot
|
||
|
|
terms, you need to use one as the fill bottom of the other. You can specify the
|
||
|
|
bottom of each data point as the third coordinate manually, or you can use this
|
||
|
|
plugin to compute it for you.
|
||
|
|
|
||
|
|
In order to name the other series, you need to give it an id, like this:
|
||
|
|
|
||
|
|
var dataset = [
|
||
|
|
{ data: [ ... ], id: "foo" } , // use default bottom
|
||
|
|
{ data: [ ... ], fillBetween: "foo" }, // use first dataset as bottom
|
||
|
|
];
|
||
|
|
|
||
|
|
$.plot($("#placeholder"), dataset, { lines: { show: true, fill: true }});
|
||
|
|
|
||
|
|
As a convenience, if the id given is a number that doesn't appear as an id in
|
||
|
|
the series, it is interpreted as the index in the array instead (so fillBetween:
|
||
|
|
0 can also mean the first series).
|
||
|
|
|
||
|
|
Internally, the plugin modifies the datapoints in each series. For line series,
|
||
|
|
extra data points might be inserted through interpolation. Note that at points
|
||
|
|
where the bottom line is not defined (due to a null point or start/end of line),
|
||
|
|
the current line will show a gap too. The algorithm comes from the
|
||
|
|
jquery.flot.stack.js plugin, possibly some code could be shared.
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
(function ( $ ) {
|
||
|
|
|
||
|
|
var options = {
|
||
|
|
series: {
|
||
|
|
fillBetween: null // or number
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
function init( plot ) {
|
||
|
|
|
||
|
|
function findBottomSeries( s, allseries ) {
|
||
|
|
|
||
|
|
var i;
|
||
|
|
|
||
|
|
for ( i = 0; i < allseries.length; ++i ) {
|
||
|
|
if ( allseries[ i ].id === s.fillBetween ) {
|
||
|
|
return allseries[ i ];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( typeof s.fillBetween === "number" ) {
|
||
|
|
if ( s.fillBetween < 0 || s.fillBetween >= allseries.length ) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
return allseries[ s.fillBetween ];
|
||
|
|
}
|
||
|
|
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
function computeFillBottoms( plot, s, datapoints ) {
|
||
|
|
|
||
|
|
if ( s.fillBetween == null ) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
var other = findBottomSeries( s, plot.getData() );
|
||
|
|
|
||
|
|
if ( !other ) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
var ps = datapoints.pointsize,
|
||
|
|
points = datapoints.points,
|
||
|
|
otherps = other.datapoints.pointsize,
|
||
|
|
otherpoints = other.datapoints.points,
|
||
|
|
newpoints = [],
|
||
|
|
px, py, intery, qx, qy, bottom,
|
||
|
|
withlines = s.lines.show,
|
||
|
|
withbottom = ps > 2 && datapoints.format[2].y,
|
||
|
|
withsteps = withlines && s.lines.steps,
|
||
|
|
fromgap = true,
|
||
|
|
i = 0,
|
||
|
|
j = 0,
|
||
|
|
l, m;
|
||
|
|
|
||
|
|
while ( true ) {
|
||
|
|
|
||
|
|
if ( i >= points.length ) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
l = newpoints.length;
|
||
|
|
|
||
|
|
if ( points[ i ] == null ) {
|
||
|
|
|
||
|
|
// copy gaps
|
||
|
|
|
||
|
|
for ( m = 0; m < ps; ++m ) {
|
||
|
|
newpoints.push( points[ i + m ] );
|
||
|
|
}
|
||
|
|
|
||
|
|
i += ps;
|
||
|
|
|
||
|
|
} else if ( j >= otherpoints.length ) {
|
||
|
|
|
||
|
|
// for lines, we can't use the rest of the points
|
||
|
|
|
||
|
|
if ( !withlines ) {
|
||
|
|
for ( m = 0; m < ps; ++m ) {
|
||
|
|
newpoints.push( points[ i + m ] );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
i += ps;
|
||
|
|
|
||
|
|
} else if ( otherpoints[ j ] == null ) {
|
||
|
|
|
||
|
|
// oops, got a gap
|
||
|
|
|
||
|
|
for ( m = 0; m < ps; ++m ) {
|
||
|
|
newpoints.push( null );
|
||
|
|
}
|
||
|
|
|
||
|
|
fromgap = true;
|
||
|
|
j += otherps;
|
||
|
|
|
||
|
|
} else {
|
||
|
|
|
||
|
|
// cases where we actually got two points
|
||
|
|
|
||
|
|
px = points[ i ];
|
||
|
|
py = points[ i + 1 ];
|
||
|
|
qx = otherpoints[ j ];
|
||
|
|
qy = otherpoints[ j + 1 ];
|
||
|
|
bottom = 0;
|
||
|
|
|
||
|
|
if ( px === qx ) {
|
||
|
|
|
||
|
|
for ( m = 0; m < ps; ++m ) {
|
||
|
|
newpoints.push( points[ i + m ] );
|
||
|
|
}
|
||
|
|
|
||
|
|
//newpoints[ l + 1 ] += qy;
|
||
|
|
bottom = qy;
|
||
|
|
|
||
|
|
i += ps;
|
||
|
|
j += otherps;
|
||
|
|
|
||
|
|
} else if ( px > qx ) {
|
||
|
|
|
||
|
|
// we got past point below, might need to
|
||
|
|
// insert interpolated extra point
|
||
|
|
|
||
|
|
if ( withlines && i > 0 && points[ i - ps ] != null ) {
|
||
|
|
intery = py + ( points[ i - ps + 1 ] - py ) * ( qx - px ) / ( points[ i - ps ] - px );
|
||
|
|
newpoints.push( qx );
|
||
|
|
newpoints.push( intery );
|
||
|
|
for ( m = 2; m < ps; ++m ) {
|
||
|
|
newpoints.push( points[ i + m ] );
|
||
|
|
}
|
||
|
|
bottom = qy;
|
||
|
|
}
|
||
|
|
|
||
|
|
j += otherps;
|
||
|
|
|
||
|
|
} else { // px < qx
|
||
|
|
|
||
|
|
// if we come from a gap, we just skip this point
|
||
|
|
|
||
|
|
if ( fromgap && withlines ) {
|
||
|
|
i += ps;
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
for ( m = 0; m < ps; ++m ) {
|
||
|
|
newpoints.push( points[ i + m ] );
|
||
|
|
}
|
||
|
|
|
||
|
|
// we might be able to interpolate a point below,
|
||
|
|
// this can give us a better y
|
||
|
|
|
||
|
|
if ( withlines && j > 0 && otherpoints[ j - otherps ] != null ) {
|
||
|
|
bottom = qy + ( otherpoints[ j - otherps + 1 ] - qy ) * ( px - qx ) / ( otherpoints[ j - otherps ] - qx );
|
||
|
|
}
|
||
|
|
|
||
|
|
//newpoints[l + 1] += bottom;
|
||
|
|
|
||
|
|
i += ps;
|
||
|
|
}
|
||
|
|
|
||
|
|
fromgap = false;
|
||
|
|
|
||
|
|
if ( l !== newpoints.length && withbottom ) {
|
||
|
|
newpoints[ l + 2 ] = bottom;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// maintain the line steps invariant
|
||
|
|
|
||
|
|
if ( withsteps && l !== newpoints.length && l > 0 &&
|
||
|
|
newpoints[ l ] !== null &&
|
||
|
|
newpoints[ l ] !== newpoints[ l - ps ] &&
|
||
|
|
newpoints[ l + 1 ] !== newpoints[ l - ps + 1 ] ) {
|
||
|
|
for (m = 0; m < ps; ++m) {
|
||
|
|
newpoints[ l + ps + m ] = newpoints[ l + m ];
|
||
|
|
}
|
||
|
|
newpoints[ l + 1 ] = newpoints[ l - ps + 1 ];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
datapoints.points = newpoints;
|
||
|
|
}
|
||
|
|
|
||
|
|
plot.hooks.processDatapoints.push( computeFillBottoms );
|
||
|
|
}
|
||
|
|
|
||
|
|
$.plot.plugins.push({
|
||
|
|
init: init,
|
||
|
|
options: options,
|
||
|
|
name: "fillbetween",
|
||
|
|
version: "1.0"
|
||
|
|
});
|
||
|
|
|
||
|
|
})(jQuery);
|
||
|
|
|
||
|
|
/* Flot plugin for plotting images.
|
||
|
|
|
||
|
|
Copyright (c) 2007-2014 IOLA and Ole Laursen.
|
||
|
|
Licensed under the MIT license.
|
||
|
|
|
||
|
|
The data syntax is [ [ image, x1, y1, x2, y2 ], ... ] where (x1, y1) and
|
||
|
|
(x2, y2) are where you intend the two opposite corners of the image to end up
|
||
|
|
in the plot. Image must be a fully loaded Javascript image (you can make one
|
||
|
|
with new Image()). If the image is not complete, it's skipped when plotting.
|
||
|
|
|
||
|
|
There are two helpers included for retrieving images. The easiest work the way
|
||
|
|
that you put in URLs instead of images in the data, like this:
|
||
|
|
|
||
|
|
[ "myimage.png", 0, 0, 10, 10 ]
|
||
|
|
|
||
|
|
Then call $.plot.image.loadData( data, options, callback ) where data and
|
||
|
|
options are the same as you pass in to $.plot. This loads the images, replaces
|
||
|
|
the URLs in the data with the corresponding images and calls "callback" when
|
||
|
|
all images are loaded (or failed loading). In the callback, you can then call
|
||
|
|
$.plot with the data set. See the included example.
|
||
|
|
|
||
|
|
A more low-level helper, $.plot.image.load(urls, callback) is also included.
|
||
|
|
Given a list of URLs, it calls callback with an object mapping from URL to
|
||
|
|
Image object when all images are loaded or have failed loading.
|
||
|
|
|
||
|
|
The plugin supports these options:
|
||
|
|
|
||
|
|
series: {
|
||
|
|
images: {
|
||
|
|
show: boolean
|
||
|
|
anchor: "corner" or "center"
|
||
|
|
alpha: [ 0, 1 ]
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
They can be specified for a specific series:
|
||
|
|
|
||
|
|
$.plot( $("#placeholder"), [{
|
||
|
|
data: [ ... ],
|
||
|
|
images: { ... }
|
||
|
|
])
|
||
|
|
|
||
|
|
Note that because the data format is different from usual data points, you
|
||
|
|
can't use images with anything else in a specific data series.
|
||
|
|
|
||
|
|
Config "anchor" to "center" causes the pixels in the image to be anchored at
|
||
|
|
the corner pixel centers inside of at the pixel corners, effectively letting
|
||
|
|
half a pixel stick out to each side in the plot.
|
||
|
|
|
||
|
|
A possible future direction could be support for tiling for large images (like
|
||
|
|
Google Maps).
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
(function ($) {
|
||
|
|
var options = {
|
||
|
|
series: {
|
||
|
|
images: {
|
||
|
|
show: false,
|
||
|
|
alpha: 1,
|
||
|
|
anchor: "corner" // or "center"
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
$.plot.image = {};
|
||
|
|
|
||
|
|
$.plot.image.loadDataImages = function (series, options, callback) {
|
||
|
|
var urls = [], points = [];
|
||
|
|
|
||
|
|
var defaultShow = options.series.images.show;
|
||
|
|
|
||
|
|
$.each(series, function (i, s) {
|
||
|
|
if (!(defaultShow || s.images.show))
|
||
|
|
return;
|
||
|
|
|
||
|
|
if (s.data)
|
||
|
|
s = s.data;
|
||
|
|
|
||
|
|
$.each(s, function (i, p) {
|
||
|
|
if (typeof p[0] == "string") {
|
||
|
|
urls.push(p[0]);
|
||
|
|
points.push(p);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
});
|
||
|
|
|
||
|
|
$.plot.image.load(urls, function (loadedImages) {
|
||
|
|
$.each(points, function (i, p) {
|
||
|
|
var url = p[0];
|
||
|
|
if (loadedImages[url])
|
||
|
|
p[0] = loadedImages[url];
|
||
|
|
});
|
||
|
|
|
||
|
|
callback();
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
$.plot.image.load = function (urls, callback) {
|
||
|
|
var missing = urls.length, loaded = {};
|
||
|
|
if (missing == 0)
|
||
|
|
callback({});
|
||
|
|
|
||
|
|
$.each(urls, function (i, url) {
|
||
|
|
var handler = function () {
|
||
|
|
--missing;
|
||
|
|
|
||
|
|
loaded[url] = this;
|
||
|
|
|
||
|
|
if (missing == 0)
|
||
|
|
callback(loaded);
|
||
|
|
};
|
||
|
|
|
||
|
|
$('<img />').load(handler).error(handler).attr('src', url);
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
function drawSeries(plot, ctx, series) {
|
||
|
|
var plotOffset = plot.getPlotOffset();
|
||
|
|
|
||
|
|
if (!series.images || !series.images.show)
|
||
|
|
return;
|
||
|
|
|
||
|
|
var points = series.datapoints.points,
|
||
|
|
ps = series.datapoints.pointsize;
|
||
|
|
|
||
|
|
for (var i = 0; i < points.length; i += ps) {
|
||
|
|
var img = points[i],
|
||
|
|
x1 = points[i + 1], y1 = points[i + 2],
|
||
|
|
x2 = points[i + 3], y2 = points[i + 4],
|
||
|
|
xaxis = series.xaxis, yaxis = series.yaxis,
|
||
|
|
tmp;
|
||
|
|
|
||
|
|
// actually we should check img.complete, but it
|
||
|
|
// appears to be a somewhat unreliable indicator in
|
||
|
|
// IE6 (false even after load event)
|
||
|
|
if (!img || img.width <= 0 || img.height <= 0)
|
||
|
|
continue;
|
||
|
|
|
||
|
|
if (x1 > x2) {
|
||
|
|
tmp = x2;
|
||
|
|
x2 = x1;
|
||
|
|
x1 = tmp;
|
||
|
|
}
|
||
|
|
if (y1 > y2) {
|
||
|
|
tmp = y2;
|
||
|
|
y2 = y1;
|
||
|
|
y1 = tmp;
|
||
|
|
}
|
||
|
|
|
||
|
|
// if the anchor is at the center of the pixel, expand the
|
||
|
|
// image by 1/2 pixel in each direction
|
||
|
|
if (series.images.anchor == "center") {
|
||
|
|
tmp = 0.5 * (x2-x1) / (img.width - 1);
|
||
|
|
x1 -= tmp;
|
||
|
|
x2 += tmp;
|
||
|
|
tmp = 0.5 * (y2-y1) / (img.height - 1);
|
||
|
|
y1 -= tmp;
|
||
|
|
y2 += tmp;
|
||
|
|
}
|
||
|
|
|
||
|
|
// clip
|
||
|
|
if (x1 == x2 || y1 == y2 ||
|
||
|
|
x1 >= xaxis.max || x2 <= xaxis.min ||
|
||
|
|
y1 >= yaxis.max || y2 <= yaxis.min)
|
||
|
|
continue;
|
||
|
|
|
||
|
|
var sx1 = 0, sy1 = 0, sx2 = img.width, sy2 = img.height;
|
||
|
|
if (x1 < xaxis.min) {
|
||
|
|
sx1 += (sx2 - sx1) * (xaxis.min - x1) / (x2 - x1);
|
||
|
|
x1 = xaxis.min;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (x2 > xaxis.max) {
|
||
|
|
sx2 += (sx2 - sx1) * (xaxis.max - x2) / (x2 - x1);
|
||
|
|
x2 = xaxis.max;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (y1 < yaxis.min) {
|
||
|
|
sy2 += (sy1 - sy2) * (yaxis.min - y1) / (y2 - y1);
|
||
|
|
y1 = yaxis.min;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (y2 > yaxis.max) {
|
||
|
|
sy1 += (sy1 - sy2) * (yaxis.max - y2) / (y2 - y1);
|
||
|
|
y2 = yaxis.max;
|
||
|
|
}
|
||
|
|
|
||
|
|
x1 = xaxis.p2c(x1);
|
||
|
|
x2 = xaxis.p2c(x2);
|
||
|
|
y1 = yaxis.p2c(y1);
|
||
|
|
y2 = yaxis.p2c(y2);
|
||
|
|
|
||
|
|
// the transformation may have swapped us
|
||
|
|
if (x1 > x2) {
|
||
|
|
tmp = x2;
|
||
|
|
x2 = x1;
|
||
|
|
x1 = tmp;
|
||
|
|
}
|
||
|
|
if (y1 > y2) {
|
||
|
|
tmp = y2;
|
||
|
|
y2 = y1;
|
||
|
|
y1 = tmp;
|
||
|
|
}
|
||
|
|
|
||
|
|
tmp = ctx.globalAlpha;
|
||
|
|
ctx.globalAlpha *= series.images.alpha;
|
||
|
|
ctx.drawImage(img,
|
||
|
|
sx1, sy1, sx2 - sx1, sy2 - sy1,
|
||
|
|
x1 + plotOffset.left, y1 + plotOffset.top,
|
||
|
|
x2 - x1, y2 - y1);
|
||
|
|
ctx.globalAlpha = tmp;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function processRawData(plot, series, data, datapoints) {
|
||
|
|
if (!series.images.show)
|
||
|
|
return;
|
||
|
|
|
||
|
|
// format is Image, x1, y1, x2, y2 (opposite corners)
|
||
|
|
datapoints.format = [
|
||
|
|
{ required: true },
|
||
|
|
{ x: true, number: true, required: true },
|
||
|
|
{ y: true, number: true, required: true },
|
||
|
|
{ x: true, number: true, required: true },
|
||
|
|
{ y: true, number: true, required: true }
|
||
|
|
];
|
||
|
|
}
|
||
|
|
|
||
|
|
function init(plot) {
|
||
|
|
plot.hooks.processRawData.push(processRawData);
|
||
|
|
plot.hooks.drawSeries.push(drawSeries);
|
||
|
|
}
|
||
|
|
|
||
|
|
$.plot.plugins.push({
|
||
|
|
init: init,
|
||
|
|
options: options,
|
||
|
|
name: 'image',
|
||
|
|
version: '1.1'
|
||
|
|
});
|
||
|
|
})(jQuery);
|
||
|
|
|
||
|
|
/* Flot plugin for adding the ability to pan and zoom the plot.
|
||
|
|
|
||
|
|
Copyright (c) 2007-2014 IOLA and Ole Laursen.
|
||
|
|
Licensed under the MIT license.
|
||
|
|
|
||
|
|
The default behaviour is double click and scrollwheel up/down to zoom in, drag
|
||
|
|
to pan. The plugin defines plot.zoom({ center }), plot.zoomOut() and
|
||
|
|
plot.pan( offset ) so you easily can add custom controls. It also fires
|
||
|
|
"plotpan" and "plotzoom" events, useful for synchronizing plots.
|
||
|
|
|
||
|
|
The plugin supports these options:
|
||
|
|
|
||
|
|
zoom: {
|
||
|
|
interactive: false
|
||
|
|
trigger: "dblclick" // or "click" for single click
|
||
|
|
amount: 1.5 // 2 = 200% (zoom in), 0.5 = 50% (zoom out)
|
||
|
|
}
|
||
|
|
|
||
|
|
pan: {
|
||
|
|
interactive: false
|
||
|
|
cursor: "move" // CSS mouse cursor value used when dragging, e.g. "pointer"
|
||
|
|
frameRate: 20
|
||
|
|
}
|
||
|
|
|
||
|
|
xaxis, yaxis, x2axis, y2axis: {
|
||
|
|
zoomRange: null // or [ number, number ] (min range, max range) or false
|
||
|
|
panRange: null // or [ number, number ] (min, max) or false
|
||
|
|
}
|
||
|
|
|
||
|
|
"interactive" enables the built-in drag/click behaviour. If you enable
|
||
|
|
interactive for pan, then you'll have a basic plot that supports moving
|
||
|
|
around; the same for zoom.
|
||
|
|
|
||
|
|
"amount" specifies the default amount to zoom in (so 1.5 = 150%) relative to
|
||
|
|
the current viewport.
|
||
|
|
|
||
|
|
"cursor" is a standard CSS mouse cursor string used for visual feedback to the
|
||
|
|
user when dragging.
|
||
|
|
|
||
|
|
"frameRate" specifies the maximum number of times per second the plot will
|
||
|
|
update itself while the user is panning around on it (set to null to disable
|
||
|
|
intermediate pans, the plot will then not update until the mouse button is
|
||
|
|
released).
|
||
|
|
|
||
|
|
"zoomRange" is the interval in which zooming can happen, e.g. with zoomRange:
|
||
|
|
[1, 100] the zoom will never scale the axis so that the difference between min
|
||
|
|
and max is smaller than 1 or larger than 100. You can set either end to null
|
||
|
|
to ignore, e.g. [1, null]. If you set zoomRange to false, zooming on that axis
|
||
|
|
will be disabled.
|
||
|
|
|
||
|
|
"panRange" confines the panning to stay within a range, e.g. with panRange:
|
||
|
|
[-10, 20] panning stops at -10 in one end and at 20 in the other. Either can
|
||
|
|
be null, e.g. [-10, null]. If you set panRange to false, panning on that axis
|
||
|
|
will be disabled.
|
||
|
|
|
||
|
|
Example API usage:
|
||
|
|
|
||
|
|
plot = $.plot(...);
|
||
|
|
|
||
|
|
// zoom default amount in on the pixel ( 10, 20 )
|
||
|
|
plot.zoom({ center: { left: 10, top: 20 } });
|
||
|
|
|
||
|
|
// zoom out again
|
||
|
|
plot.zoomOut({ center: { left: 10, top: 20 } });
|
||
|
|
|
||
|
|
// zoom 200% in on the pixel (10, 20)
|
||
|
|
plot.zoom({ amount: 2, center: { left: 10, top: 20 } });
|
||
|
|
|
||
|
|
// pan 100 pixels to the left and 20 down
|
||
|
|
plot.pan({ left: -100, top: 20 })
|
||
|
|
|
||
|
|
Here, "center" specifies where the center of the zooming should happen. Note
|
||
|
|
that this is defined in pixel space, not the space of the data points (you can
|
||
|
|
use the p2c helpers on the axes in Flot to help you convert between these).
|
||
|
|
|
||
|
|
"amount" is the amount to zoom the viewport relative to the current range, so
|
||
|
|
1 is 100% (i.e. no change), 1.5 is 150% (zoom in), 0.7 is 70% (zoom out). You
|
||
|
|
can set the default in the options.
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
// First two dependencies, jquery.event.drag.js and
|
||
|
|
// jquery.mousewheel.js, we put them inline here to save people the
|
||
|
|
// effort of downloading them.
|
||
|
|
|
||
|
|
/*
|
||
|
|
jquery.event.drag.js ~ v1.5 ~ Copyright (c) 2008, Three Dub Media (http://threedubmedia.com)
|
||
|
|
Licensed under the MIT License ~ http://threedubmedia.googlecode.com/files/MIT-LICENSE.txt
|
||
|
|
*/
|
||
|
|
(function(a){function e(h){var k,j=this,l=h.data||{};if(l.elem)j=h.dragTarget=l.elem,h.dragProxy=d.proxy||j,h.cursorOffsetX=l.pageX-l.left,h.cursorOffsetY=l.pageY-l.top,h.offsetX=h.pageX-h.cursorOffsetX,h.offsetY=h.pageY-h.cursorOffsetY;else if(d.dragging||l.which>0&&h.which!=l.which||a(h.target).is(l.not))return;switch(h.type){case"mousedown":return a.extend(l,a(j).offset(),{elem:j,target:h.target,pageX:h.pageX,pageY:h.pageY}),b.add(document,"mousemove mouseup",e,l),i(j,!1),d.dragging=null,!1;case!d.dragging&&"mousemove":if(g(h.pageX-l.pageX)+g(h.pageY-l.pageY)<l.distance)break;h.target=l.target,k=f(h,"dragstart",j),k!==!1&&(d.dragging=j,d.proxy=h.dragProxy=a(k||j)[0]);case"mousemove":if(d.dragging){if(k=f(h,"drag",j),c.drop&&(c.drop.allowed=k!==!1,c.drop.handler(h)),k!==!1)break;h.type="mouseup"}case"mouseup":b.remove(document,"mousemove mouseup",e),d.dragging&&(c.drop&&c.drop.handler(h),f(h,"dragend",j)),i(j,!0),d.dragging=d.proxy=l.elem=!1}return!0}function f(b,c,d){b.type=c;var e=a.event.dispatch.call(d,b);return e===!1?!1:e||b.result}function g(a){return Math.pow(a,2)}function h(){return d.dragging===!1}function i(a,b){a&&(a.unselectable=b?"off":"on",a.onselectstart=function(){return b},a.style&&(a.style.MozUserSelect=b?"":"none"))}a.fn.drag=function(a,b,c){return b&&this.bind("dragstart",a),c&&this.bind("dragend",c),a?this.bind("drag",b?b:a):this.trigger("drag")};var b=a.event,c=b.special,d=c.drag={not:":input",distance:0,which:1,dragging:!1,setup:function(c){c=a.extend({distance:d.distance,which:d.which,not:d.not},c||{}),c.distance=g(c.distance),b.add(this,"mousedown",e,c),this.attachEvent&&this.attachEvent("ondragstart",h)},teardown:function(){b.remove(this,"mousedown",e),this===d.dragging&&(d.dragging=d.proxy=!1),i(this,!0),this.detachEvent&&this.detachEvent("ondragstart",h)}};c.dragstart=c.dragend={setup:function(){},teardown:function(){}}})(jQuery);
|
||
|
|
|
||
|
|
/* jquery.mousewheel.min.js
|
||
|
|
* Copyright (c) 2011 Brandon Aaron (http://brandonaaron.net)
|
||
|
|
* Licensed under the MIT License (LICENSE.txt).
|
||
|
|
* Thanks to: http://adomas.org/javascript-mouse-wheel/ for some pointers.
|
||
|
|
* Thanks to: Mathias Bank(http://www.mathias-bank.de) for a scope bug fix.
|
||
|
|
* Thanks to: Seamus Leahy for adding deltaX and deltaY
|
||
|
|
*
|
||
|
|
* Version: 3.0.6
|
||
|
|
*
|
||
|
|
* Requires: 1.2.2+
|
||
|
|
*/
|
||
|
|
(function(d){function e(a){var b=a||window.event,c=[].slice.call(arguments,1),f=0,e=0,g=0,a=d.event.fix(b);a.type="mousewheel";b.wheelDelta&&(f=b.wheelDelta/120);b.detail&&(f=-b.detail/3);g=f;void 0!==b.axis&&b.axis===b.HORIZONTAL_AXIS&&(g=0,e=-1*f);void 0!==b.wheelDeltaY&&(g=b.wheelDeltaY/120);void 0!==b.wheelDeltaX&&(e=-1*b.wheelDeltaX/120);c.unshift(a,f,e,g);return(d.event.dispatch||d.event.handle).apply(this,c)}var c=["DOMMouseScroll","mousewheel"];if(d.event.fixHooks)for(var h=c.length;h;)d.event.fixHooks[c[--h]]=d.event.mouseHooks;d.event.special.mousewheel={setup:function(){if(this.addEventListener)for(var a=c.length;a;)this.addEventListener(c[--a],e,!1);else this.onmousewheel=e},teardown:function(){if(this.removeEventListener)for(var a=c.length;a;)this.removeEventListener(c[--a],e,!1);else this.onmousewheel=null}};d.fn.extend({mousewheel:function(a){return a?this.bind("mousewheel",a):this.trigger("mousewheel")},unmousewheel:function(a){return this.unbind("mousewheel",a)}})})(jQuery);
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
(function ($) {
|
||
|
|
var options = {
|
||
|
|
xaxis: {
|
||
|
|
zoomRange: null, // or [number, number] (min range, max range)
|
||
|
|
panRange: null // or [number, number] (min, max)
|
||
|
|
},
|
||
|
|
zoom: {
|
||
|
|
interactive: false,
|
||
|
|
trigger: "dblclick", // or "click" for single click
|
||
|
|
amount: 1.5 // how much to zoom relative to current position, 2 = 200% (zoom in), 0.5 = 50% (zoom out)
|
||
|
|
},
|
||
|
|
pan: {
|
||
|
|
interactive: false,
|
||
|
|
cursor: "move",
|
||
|
|
frameRate: 20
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
function init(plot) {
|
||
|
|
function onZoomClick(e, zoomOut) {
|
||
|
|
var c = plot.offset();
|
||
|
|
c.left = e.pageX - c.left;
|
||
|
|
c.top = e.pageY - c.top;
|
||
|
|
if (zoomOut)
|
||
|
|
plot.zoomOut({ center: c });
|
||
|
|
else
|
||
|
|
plot.zoom({ center: c });
|
||
|
|
}
|
||
|
|
|
||
|
|
function onMouseWheel(e, delta) {
|
||
|
|
e.preventDefault();
|
||
|
|
onZoomClick(e, delta < 0);
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
var prevCursor = 'default', prevPageX = 0, prevPageY = 0,
|
||
|
|
panTimeout = null;
|
||
|
|
|
||
|
|
function onDragStart(e) {
|
||
|
|
if (e.which != 1) // only accept left-click
|
||
|
|
return false;
|
||
|
|
var c = plot.getPlaceholder().css('cursor');
|
||
|
|
if (c)
|
||
|
|
prevCursor = c;
|
||
|
|
plot.getPlaceholder().css('cursor', plot.getOptions().pan.cursor);
|
||
|
|
prevPageX = e.pageX;
|
||
|
|
prevPageY = e.pageY;
|
||
|
|
}
|
||
|
|
|
||
|
|
function onDrag(e) {
|
||
|
|
var frameRate = plot.getOptions().pan.frameRate;
|
||
|
|
if (panTimeout || !frameRate)
|
||
|
|
return;
|
||
|
|
|
||
|
|
panTimeout = setTimeout(function () {
|
||
|
|
plot.pan({ left: prevPageX - e.pageX,
|
||
|
|
top: prevPageY - e.pageY });
|
||
|
|
prevPageX = e.pageX;
|
||
|
|
prevPageY = e.pageY;
|
||
|
|
|
||
|
|
panTimeout = null;
|
||
|
|
}, 1 / frameRate * 1000);
|
||
|
|
}
|
||
|
|
|
||
|
|
function onDragEnd(e) {
|
||
|
|
if (panTimeout) {
|
||
|
|
clearTimeout(panTimeout);
|
||
|
|
panTimeout = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
plot.getPlaceholder().css('cursor', prevCursor);
|
||
|
|
plot.pan({ left: prevPageX - e.pageX,
|
||
|
|
top: prevPageY - e.pageY });
|
||
|
|
}
|
||
|
|
|
||
|
|
function bindEvents(plot, eventHolder) {
|
||
|
|
var o = plot.getOptions();
|
||
|
|
if (o.zoom.interactive) {
|
||
|
|
eventHolder[o.zoom.trigger](onZoomClick);
|
||
|
|
eventHolder.mousewheel(onMouseWheel);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (o.pan.interactive) {
|
||
|
|
eventHolder.bind("dragstart", { distance: 10 }, onDragStart);
|
||
|
|
eventHolder.bind("drag", onDrag);
|
||
|
|
eventHolder.bind("dragend", onDragEnd);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
plot.zoomOut = function (args) {
|
||
|
|
if (!args)
|
||
|
|
args = {};
|
||
|
|
|
||
|
|
if (!args.amount)
|
||
|
|
args.amount = plot.getOptions().zoom.amount;
|
||
|
|
|
||
|
|
args.amount = 1 / args.amount;
|
||
|
|
plot.zoom(args);
|
||
|
|
};
|
||
|
|
|
||
|
|
plot.zoom = function (args) {
|
||
|
|
if (!args)
|
||
|
|
args = {};
|
||
|
|
|
||
|
|
var c = args.center,
|
||
|
|
amount = args.amount || plot.getOptions().zoom.amount,
|
||
|
|
w = plot.width(), h = plot.height();
|
||
|
|
|
||
|
|
if (!c)
|
||
|
|
c = { left: w / 2, top: h / 2 };
|
||
|
|
|
||
|
|
var xf = c.left / w,
|
||
|
|
yf = c.top / h,
|
||
|
|
minmax = {
|
||
|
|
x: {
|
||
|
|
min: c.left - xf * w / amount,
|
||
|
|
max: c.left + (1 - xf) * w / amount
|
||
|
|
},
|
||
|
|
y: {
|
||
|
|
min: c.top - yf * h / amount,
|
||
|
|
max: c.top + (1 - yf) * h / amount
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
$.each(plot.getAxes(), function(_, axis) {
|
||
|
|
var opts = axis.options,
|
||
|
|
min = minmax[axis.direction].min,
|
||
|
|
max = minmax[axis.direction].max,
|
||
|
|
zr = opts.zoomRange,
|
||
|
|
pr = opts.panRange;
|
||
|
|
|
||
|
|
if (zr === false) // no zooming on this axis
|
||
|
|
return;
|
||
|
|
|
||
|
|
min = axis.c2p(min);
|
||
|
|
max = axis.c2p(max);
|
||
|
|
if (min > max) {
|
||
|
|
// make sure min < max
|
||
|
|
var tmp = min;
|
||
|
|
min = max;
|
||
|
|
max = tmp;
|
||
|
|
}
|
||
|
|
|
||
|
|
//Check that we are in panRange
|
||
|
|
if (pr) {
|
||
|
|
if (pr[0] != null && min < pr[0]) {
|
||
|
|
min = pr[0];
|
||
|
|
}
|
||
|
|
if (pr[1] != null && max > pr[1]) {
|
||
|
|
max = pr[1];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var range = max - min;
|
||
|
|
if (zr &&
|
||
|
|
((zr[0] != null && range < zr[0] && amount >1) ||
|
||
|
|
(zr[1] != null && range > zr[1] && amount <1)))
|
||
|
|
return;
|
||
|
|
|
||
|
|
opts.min = min;
|
||
|
|
opts.max = max;
|
||
|
|
});
|
||
|
|
|
||
|
|
plot.setupGrid();
|
||
|
|
plot.draw();
|
||
|
|
|
||
|
|
if (!args.preventEvent)
|
||
|
|
plot.getPlaceholder().trigger("plotzoom", [ plot, args ]);
|
||
|
|
};
|
||
|
|
|
||
|
|
plot.pan = function (args) {
|
||
|
|
var delta = {
|
||
|
|
x: +args.left,
|
||
|
|
y: +args.top
|
||
|
|
};
|
||
|
|
|
||
|
|
if (isNaN(delta.x))
|
||
|
|
delta.x = 0;
|
||
|
|
if (isNaN(delta.y))
|
||
|
|
delta.y = 0;
|
||
|
|
|
||
|
|
$.each(plot.getAxes(), function (_, axis) {
|
||
|
|
var opts = axis.options,
|
||
|
|
min, max, d = delta[axis.direction];
|
||
|
|
|
||
|
|
min = axis.c2p(axis.p2c(axis.min) + d),
|
||
|
|
max = axis.c2p(axis.p2c(axis.max) + d);
|
||
|
|
|
||
|
|
var pr = opts.panRange;
|
||
|
|
if (pr === false) // no panning on this axis
|
||
|
|
return;
|
||
|
|
|
||
|
|
if (pr) {
|
||
|
|
// check whether we hit the wall
|
||
|
|
if (pr[0] != null && pr[0] > min) {
|
||
|
|
d = pr[0] - min;
|
||
|
|
min += d;
|
||
|
|
max += d;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (pr[1] != null && pr[1] < max) {
|
||
|
|
d = pr[1] - max;
|
||
|
|
min += d;
|
||
|
|
max += d;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
opts.min = min;
|
||
|
|
opts.max = max;
|
||
|
|
});
|
||
|
|
|
||
|
|
plot.setupGrid();
|
||
|
|
plot.draw();
|
||
|
|
|
||
|
|
if (!args.preventEvent)
|
||
|
|
plot.getPlaceholder().trigger("plotpan", [ plot, args ]);
|
||
|
|
};
|
||
|
|
|
||
|
|
function shutdown(plot, eventHolder) {
|
||
|
|
eventHolder.unbind(plot.getOptions().zoom.trigger, onZoomClick);
|
||
|
|
eventHolder.unbind("mousewheel", onMouseWheel);
|
||
|
|
eventHolder.unbind("dragstart", onDragStart);
|
||
|
|
eventHolder.unbind("drag", onDrag);
|
||
|
|
eventHolder.unbind("dragend", onDragEnd);
|
||
|
|
if (panTimeout)
|
||
|
|
clearTimeout(panTimeout);
|
||
|
|
}
|
||
|
|
|
||
|
|
plot.hooks.bindEvents.push(bindEvents);
|
||
|
|
plot.hooks.shutdown.push(shutdown);
|
||
|
|
}
|
||
|
|
|
||
|
|
$.plot.plugins.push({
|
||
|
|
init: init,
|
||
|
|
options: options,
|
||
|
|
name: 'navigate',
|
||
|
|
version: '1.3'
|
||
|
|
});
|
||
|
|
})(jQuery);
|
||
|
|
|
||
|
|
/* Flot plugin for rendering pie charts.
|
||
|
|
|
||
|
|
Copyright (c) 2007-2014 IOLA and Ole Laursen.
|
||
|
|
Licensed under the MIT license.
|
||
|
|
|
||
|
|
The plugin assumes that each series has a single data value, and that each
|
||
|
|
value is a positive integer or zero. Negative numbers don't make sense for a
|
||
|
|
pie chart, and have unpredictable results. The values do NOT need to be
|
||
|
|
passed in as percentages; the plugin will calculate the total and per-slice
|
||
|
|
percentages internally.
|
||
|
|
|
||
|
|
* Created by Brian Medendorp
|
||
|
|
|
||
|
|
* Updated with contributions from btburnett3, Anthony Aragues and Xavi Ivars
|
||
|
|
|
||
|
|
The plugin supports these options:
|
||
|
|
|
||
|
|
series: {
|
||
|
|
pie: {
|
||
|
|
show: true/false
|
||
|
|
radius: 0-1 for percentage of fullsize, or a specified pixel length, or 'auto'
|
||
|
|
innerRadius: 0-1 for percentage of fullsize or a specified pixel length, for creating a donut effect
|
||
|
|
startAngle: 0-2 factor of PI used for starting angle (in radians) i.e 3/2 starts at the top, 0 and 2 have the same result
|
||
|
|
tilt: 0-1 for percentage to tilt the pie, where 1 is no tilt, and 0 is completely flat (nothing will show)
|
||
|
|
offset: {
|
||
|
|
top: integer value to move the pie up or down
|
||
|
|
left: integer value to move the pie left or right, or 'auto'
|
||
|
|
},
|
||
|
|
stroke: {
|
||
|
|
color: any hexidecimal color value (other formats may or may not work, so best to stick with something like '#FFF')
|
||
|
|
width: integer pixel width of the stroke
|
||
|
|
},
|
||
|
|
label: {
|
||
|
|
show: true/false, or 'auto'
|
||
|
|
formatter: a user-defined function that modifies the text/style of the label text
|
||
|
|
radius: 0-1 for percentage of fullsize, or a specified pixel length
|
||
|
|
background: {
|
||
|
|
color: any hexidecimal color value (other formats may or may not work, so best to stick with something like '#000')
|
||
|
|
opacity: 0-1
|
||
|
|
},
|
||
|
|
threshold: 0-1 for the percentage value at which to hide labels (if they're too small)
|
||
|
|
},
|
||
|
|
combine: {
|
||
|
|
threshold: 0-1 for the percentage value at which to combine slices (if they're too small)
|
||
|
|
color: any hexidecimal color value (other formats may or may not work, so best to stick with something like '#CCC'), if null, the plugin will automatically use the color of the first slice to be combined
|
||
|
|
label: any text value of what the combined slice should be labeled
|
||
|
|
}
|
||
|
|
highlight: {
|
||
|
|
opacity: 0-1
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
More detail and specific examples can be found in the included HTML file.
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
(function($) {
|
||
|
|
|
||
|
|
// Maximum redraw attempts when fitting labels within the plot
|
||
|
|
|
||
|
|
var REDRAW_ATTEMPTS = 10;
|
||
|
|
|
||
|
|
// Factor by which to shrink the pie when fitting labels within the plot
|
||
|
|
|
||
|
|
var REDRAW_SHRINK = 0.95;
|
||
|
|
|
||
|
|
function init(plot) {
|
||
|
|
|
||
|
|
var canvas = null,
|
||
|
|
target = null,
|
||
|
|
options = null,
|
||
|
|
maxRadius = null,
|
||
|
|
centerLeft = null,
|
||
|
|
centerTop = null,
|
||
|
|
processed = false,
|
||
|
|
ctx = null;
|
||
|
|
|
||
|
|
// interactive variables
|
||
|
|
|
||
|
|
var highlights = [];
|
||
|
|
|
||
|
|
// add hook to determine if pie plugin in enabled, and then perform necessary operations
|
||
|
|
|
||
|
|
plot.hooks.processOptions.push(function(plot, options) {
|
||
|
|
if (options.series.pie.show) {
|
||
|
|
|
||
|
|
options.grid.show = false;
|
||
|
|
|
||
|
|
// set labels.show
|
||
|
|
|
||
|
|
if (options.series.pie.label.show == "auto") {
|
||
|
|
if (options.legend.show) {
|
||
|
|
options.series.pie.label.show = false;
|
||
|
|
} else {
|
||
|
|
options.series.pie.label.show = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// set radius
|
||
|
|
|
||
|
|
if (options.series.pie.radius == "auto") {
|
||
|
|
if (options.series.pie.label.show) {
|
||
|
|
options.series.pie.radius = 3/4;
|
||
|
|
} else {
|
||
|
|
options.series.pie.radius = 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// ensure sane tilt
|
||
|
|
|
||
|
|
if (options.series.pie.tilt > 1) {
|
||
|
|
options.series.pie.tilt = 1;
|
||
|
|
} else if (options.series.pie.tilt < 0) {
|
||
|
|
options.series.pie.tilt = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
plot.hooks.bindEvents.push(function(plot, eventHolder) {
|
||
|
|
var options = plot.getOptions();
|
||
|
|
if (options.series.pie.show) {
|
||
|
|
if (options.grid.hoverable) {
|
||
|
|
eventHolder.unbind("mousemove").mousemove(onMouseMove);
|
||
|
|
}
|
||
|
|
if (options.grid.clickable) {
|
||
|
|
eventHolder.unbind("click").click(onClick);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
plot.hooks.processDatapoints.push(function(plot, series, data, datapoints) {
|
||
|
|
var options = plot.getOptions();
|
||
|
|
if (options.series.pie.show) {
|
||
|
|
processDatapoints(plot, series, data, datapoints);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
plot.hooks.drawOverlay.push(function(plot, octx) {
|
||
|
|
var options = plot.getOptions();
|
||
|
|
if (options.series.pie.show) {
|
||
|
|
drawOverlay(plot, octx);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
plot.hooks.draw.push(function(plot, newCtx) {
|
||
|
|
var options = plot.getOptions();
|
||
|
|
if (options.series.pie.show) {
|
||
|
|
draw(plot, newCtx);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
function processDatapoints(plot, series, datapoints) {
|
||
|
|
if (!processed) {
|
||
|
|
processed = true;
|
||
|
|
canvas = plot.getCanvas();
|
||
|
|
target = $(canvas).parent();
|
||
|
|
options = plot.getOptions();
|
||
|
|
plot.setData(combine(plot.getData()));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function combine(data) {
|
||
|
|
|
||
|
|
var total = 0,
|
||
|
|
combined = 0,
|
||
|
|
numCombined = 0,
|
||
|
|
color = options.series.pie.combine.color,
|
||
|
|
newdata = [];
|
||
|
|
|
||
|
|
// Fix up the raw data from Flot, ensuring the data is numeric
|
||
|
|
|
||
|
|
for (var i = 0; i < data.length; ++i) {
|
||
|
|
|
||
|
|
var value = data[i].data;
|
||
|
|
|
||
|
|
// If the data is an array, we'll assume that it's a standard
|
||
|
|
// Flot x-y pair, and are concerned only with the second value.
|
||
|
|
|
||
|
|
// Note how we use the original array, rather than creating a
|
||
|
|
// new one; this is more efficient and preserves any extra data
|
||
|
|
// that the user may have stored in higher indexes.
|
||
|
|
|
||
|
|
if ($.isArray(value) && value.length == 1) {
|
||
|
|
value = value[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($.isArray(value)) {
|
||
|
|
// Equivalent to $.isNumeric() but compatible with jQuery < 1.7
|
||
|
|
if (!isNaN(parseFloat(value[1])) && isFinite(value[1])) {
|
||
|
|
value[1] = +value[1];
|
||
|
|
} else {
|
||
|
|
value[1] = 0;
|
||
|
|
}
|
||
|
|
} else if (!isNaN(parseFloat(value)) && isFinite(value)) {
|
||
|
|
value = [1, +value];
|
||
|
|
} else {
|
||
|
|
value = [1, 0];
|
||
|
|
}
|
||
|
|
|
||
|
|
data[i].data = [value];
|
||
|
|
}
|
||
|
|
|
||
|
|
// Sum up all the slices, so we can calculate percentages for each
|
||
|
|
|
||
|
|
for (var i = 0; i < data.length; ++i) {
|
||
|
|
total += data[i].data[0][1];
|
||
|
|
}
|
||
|
|
|
||
|
|
// Count the number of slices with percentages below the combine
|
||
|
|
// threshold; if it turns out to be just one, we won't combine.
|
||
|
|
|
||
|
|
for (var i = 0; i < data.length; ++i) {
|
||
|
|
var value = data[i].data[0][1];
|
||
|
|
if (value / total <= options.series.pie.combine.threshold) {
|
||
|
|
combined += value;
|
||
|
|
numCombined++;
|
||
|
|
if (!color) {
|
||
|
|
color = data[i].color;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
for (var i = 0; i < data.length; ++i) {
|
||
|
|
var value = data[i].data[0][1];
|
||
|
|
if (numCombined < 2 || value / total > options.series.pie.combine.threshold) {
|
||
|
|
newdata.push(
|
||
|
|
$.extend(data[i], { /* extend to allow keeping all other original data values
|
||
|
|
and using them e.g. in labelFormatter. */
|
||
|
|
data: [[1, value]],
|
||
|
|
color: data[i].color,
|
||
|
|
label: data[i].label,
|
||
|
|
angle: value * Math.PI * 2 / total,
|
||
|
|
percent: value / (total / 100)
|
||
|
|
})
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (numCombined > 1) {
|
||
|
|
newdata.push({
|
||
|
|
data: [[1, combined]],
|
||
|
|
color: color,
|
||
|
|
label: options.series.pie.combine.label,
|
||
|
|
angle: combined * Math.PI * 2 / total,
|
||
|
|
percent: combined / (total / 100)
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
return newdata;
|
||
|
|
}
|
||
|
|
|
||
|
|
function draw(plot, newCtx) {
|
||
|
|
|
||
|
|
if (!target) {
|
||
|
|
return; // if no series were passed
|
||
|
|
}
|
||
|
|
|
||
|
|
var canvasWidth = plot.getPlaceholder().width(),
|
||
|
|
canvasHeight = plot.getPlaceholder().height(),
|
||
|
|
legendWidth = target.children().filter(".legend").children().width() || 0;
|
||
|
|
|
||
|
|
ctx = newCtx;
|
||
|
|
|
||
|
|
// WARNING: HACK! REWRITE THIS CODE AS SOON AS POSSIBLE!
|
||
|
|
|
||
|
|
// When combining smaller slices into an 'other' slice, we need to
|
||
|
|
// add a new series. Since Flot gives plugins no way to modify the
|
||
|
|
// list of series, the pie plugin uses a hack where the first call
|
||
|
|
// to processDatapoints results in a call to setData with the new
|
||
|
|
// list of series, then subsequent processDatapoints do nothing.
|
||
|
|
|
||
|
|
// The plugin-global 'processed' flag is used to control this hack;
|
||
|
|
// it starts out false, and is set to true after the first call to
|
||
|
|
// processDatapoints.
|
||
|
|
|
||
|
|
// Unfortunately this turns future setData calls into no-ops; they
|
||
|
|
// call processDatapoints, the flag is true, and nothing happens.
|
||
|
|
|
||
|
|
// To fix this we'll set the flag back to false here in draw, when
|
||
|
|
// all series have been processed, so the next sequence of calls to
|
||
|
|
// processDatapoints once again starts out with a slice-combine.
|
||
|
|
// This is really a hack; in 0.9 we need to give plugins a proper
|
||
|
|
// way to modify series before any processing begins.
|
||
|
|
|
||
|
|
processed = false;
|
||
|
|
|
||
|
|
// calculate maximum radius and center point
|
||
|
|
|
||
|
|
maxRadius = Math.min(canvasWidth, canvasHeight / options.series.pie.tilt) / 2;
|
||
|
|
centerTop = canvasHeight / 2 + options.series.pie.offset.top;
|
||
|
|
centerLeft = canvasWidth / 2;
|
||
|
|
|
||
|
|
if (options.series.pie.offset.left == "auto") {
|
||
|
|
if (options.legend.position.match("w")) {
|
||
|
|
centerLeft += legendWidth / 2;
|
||
|
|
} else {
|
||
|
|
centerLeft -= legendWidth / 2;
|
||
|
|
}
|
||
|
|
if (centerLeft < maxRadius) {
|
||
|
|
centerLeft = maxRadius;
|
||
|
|
} else if (centerLeft > canvasWidth - maxRadius) {
|
||
|
|
centerLeft = canvasWidth - maxRadius;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
centerLeft += options.series.pie.offset.left;
|
||
|
|
}
|
||
|
|
|
||
|
|
var slices = plot.getData(),
|
||
|
|
attempts = 0;
|
||
|
|
|
||
|
|
// Keep shrinking the pie's radius until drawPie returns true,
|
||
|
|
// indicating that all the labels fit, or we try too many times.
|
||
|
|
|
||
|
|
do {
|
||
|
|
if (attempts > 0) {
|
||
|
|
maxRadius *= REDRAW_SHRINK;
|
||
|
|
}
|
||
|
|
attempts += 1;
|
||
|
|
clear();
|
||
|
|
if (options.series.pie.tilt <= 0.8) {
|
||
|
|
drawShadow();
|
||
|
|
}
|
||
|
|
} while (!drawPie() && attempts < REDRAW_ATTEMPTS)
|
||
|
|
|
||
|
|
if (attempts >= REDRAW_ATTEMPTS) {
|
||
|
|
clear();
|
||
|
|
target.prepend("<div class='error'>Could not draw pie with labels contained inside canvas</div>");
|
||
|
|
}
|
||
|
|
|
||
|
|
if (plot.setSeries && plot.insertLegend) {
|
||
|
|
plot.setSeries(slices);
|
||
|
|
plot.insertLegend();
|
||
|
|
}
|
||
|
|
|
||
|
|
// we're actually done at this point, just defining internal functions at this point
|
||
|
|
|
||
|
|
function clear() {
|
||
|
|
ctx.clearRect(0, 0, canvasWidth, canvasHeight);
|
||
|
|
target.children().filter(".pieLabel, .pieLabelBackground").remove();
|
||
|
|
}
|
||
|
|
|
||
|
|
function drawShadow() {
|
||
|
|
|
||
|
|
var shadowLeft = options.series.pie.shadow.left;
|
||
|
|
var shadowTop = options.series.pie.shadow.top;
|
||
|
|
var edge = 10;
|
||
|
|
var alpha = options.series.pie.shadow.alpha;
|
||
|
|
var radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius;
|
||
|
|
|
||
|
|
if (radius >= canvasWidth / 2 - shadowLeft || radius * options.series.pie.tilt >= canvasHeight / 2 - shadowTop || radius <= edge) {
|
||
|
|
return; // shadow would be outside canvas, so don't draw it
|
||
|
|
}
|
||
|
|
|
||
|
|
ctx.save();
|
||
|
|
ctx.translate(shadowLeft,shadowTop);
|
||
|
|
ctx.globalAlpha = alpha;
|
||
|
|
ctx.fillStyle = "#000";
|
||
|
|
|
||
|
|
// center and rotate to starting position
|
||
|
|
|
||
|
|
ctx.translate(centerLeft,centerTop);
|
||
|
|
ctx.scale(1, options.series.pie.tilt);
|
||
|
|
|
||
|
|
//radius -= edge;
|
||
|
|
|
||
|
|
for (var i = 1; i <= edge; i++) {
|
||
|
|
ctx.beginPath();
|
||
|
|
ctx.arc(0, 0, radius, 0, Math.PI * 2, false);
|
||
|
|
ctx.fill();
|
||
|
|
radius -= i;
|
||
|
|
}
|
||
|
|
|
||
|
|
ctx.restore();
|
||
|
|
}
|
||
|
|
|
||
|
|
function drawPie() {
|
||
|
|
|
||
|
|
var startAngle = Math.PI * options.series.pie.startAngle;
|
||
|
|
var radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius;
|
||
|
|
|
||
|
|
// center and rotate to starting position
|
||
|
|
|
||
|
|
ctx.save();
|
||
|
|
ctx.translate(centerLeft,centerTop);
|
||
|
|
ctx.scale(1, options.series.pie.tilt);
|
||
|
|
//ctx.rotate(startAngle); // start at top; -- This doesn't work properly in Opera
|
||
|
|
|
||
|
|
// draw slices
|
||
|
|
|
||
|
|
ctx.save();
|
||
|
|
var currentAngle = startAngle;
|
||
|
|
for (var i = 0; i < slices.length; ++i) {
|
||
|
|
slices[i].startAngle = currentAngle;
|
||
|
|
drawSlice(slices[i].angle, slices[i].color, true);
|
||
|
|
}
|
||
|
|
ctx.restore();
|
||
|
|
|
||
|
|
// draw slice outlines
|
||
|
|
|
||
|
|
if (options.series.pie.stroke.width > 0) {
|
||
|
|
ctx.save();
|
||
|
|
ctx.lineWidth = options.series.pie.stroke.width;
|
||
|
|
currentAngle = startAngle;
|
||
|
|
for (var i = 0; i < slices.length; ++i) {
|
||
|
|
drawSlice(slices[i].angle, options.series.pie.stroke.color, false);
|
||
|
|
}
|
||
|
|
ctx.restore();
|
||
|
|
}
|
||
|
|
|
||
|
|
// draw donut hole
|
||
|
|
|
||
|
|
drawDonutHole(ctx);
|
||
|
|
|
||
|
|
ctx.restore();
|
||
|
|
|
||
|
|
// Draw the labels, returning true if they fit within the plot
|
||
|
|
|
||
|
|
if (options.series.pie.label.show) {
|
||
|
|
return drawLabels();
|
||
|
|
} else return true;
|
||
|
|
|
||
|
|
function drawSlice(angle, color, fill) {
|
||
|
|
|
||
|
|
if (angle <= 0 || isNaN(angle)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (fill) {
|
||
|
|
ctx.fillStyle = color;
|
||
|
|
} else {
|
||
|
|
ctx.strokeStyle = color;
|
||
|
|
ctx.lineJoin = "round";
|
||
|
|
}
|
||
|
|
|
||
|
|
ctx.beginPath();
|
||
|
|
if (Math.abs(angle - Math.PI * 2) > 0.000000001) {
|
||
|
|
ctx.moveTo(0, 0); // Center of the pie
|
||
|
|
}
|
||
|
|
|
||
|
|
//ctx.arc(0, 0, radius, 0, angle, false); // This doesn't work properly in Opera
|
||
|
|
ctx.arc(0, 0, radius,currentAngle, currentAngle + angle / 2, false);
|
||
|
|
ctx.arc(0, 0, radius,currentAngle + angle / 2, currentAngle + angle, false);
|
||
|
|
ctx.closePath();
|
||
|
|
//ctx.rotate(angle); // This doesn't work properly in Opera
|
||
|
|
currentAngle += angle;
|
||
|
|
|
||
|
|
if (fill) {
|
||
|
|
ctx.fill();
|
||
|
|
} else {
|
||
|
|
ctx.stroke();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function drawLabels() {
|
||
|
|
|
||
|
|
var currentAngle = startAngle;
|
||
|
|
var radius = options.series.pie.label.radius > 1 ? options.series.pie.label.radius : maxRadius * options.series.pie.label.radius;
|
||
|
|
|
||
|
|
for (var i = 0; i < slices.length; ++i) {
|
||
|
|
if (slices[i].percent >= options.series.pie.label.threshold * 100) {
|
||
|
|
if (!drawLabel(slices[i], currentAngle, i)) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
currentAngle += slices[i].angle;
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
|
||
|
|
function drawLabel(slice, startAngle, index) {
|
||
|
|
|
||
|
|
if (slice.data[0][1] == 0) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
// format label text
|
||
|
|
|
||
|
|
var lf = options.legend.labelFormatter, text, plf = options.series.pie.label.formatter;
|
||
|
|
|
||
|
|
if (lf) {
|
||
|
|
text = lf(slice.label, slice);
|
||
|
|
} else {
|
||
|
|
text = slice.label;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (plf) {
|
||
|
|
text = plf(text, slice);
|
||
|
|
}
|
||
|
|
|
||
|
|
var halfAngle = ((startAngle + slice.angle) + startAngle) / 2;
|
||
|
|
var x = centerLeft + Math.round(Math.cos(halfAngle) * radius);
|
||
|
|
var y = centerTop + Math.round(Math.sin(halfAngle) * radius) * options.series.pie.tilt;
|
||
|
|
|
||
|
|
var html = "<span class='pieLabel' id='pieLabel" + index + "' style='position:absolute;top:" + y + "px;left:" + x + "px;'>" + text + "</span>";
|
||
|
|
target.append(html);
|
||
|
|
|
||
|
|
var label = target.children("#pieLabel" + index);
|
||
|
|
var labelTop = (y - label.height() / 2);
|
||
|
|
var labelLeft = (x - label.width() / 2);
|
||
|
|
|
||
|
|
label.css("top", labelTop);
|
||
|
|
label.css("left", labelLeft);
|
||
|
|
|
||
|
|
// check to make sure that the label is not outside the canvas
|
||
|
|
|
||
|
|
if (0 - labelTop > 0 || 0 - labelLeft > 0 || canvasHeight - (labelTop + label.height()) < 0 || canvasWidth - (labelLeft + label.width()) < 0) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (options.series.pie.label.background.opacity != 0) {
|
||
|
|
|
||
|
|
// put in the transparent background separately to avoid blended labels and label boxes
|
||
|
|
|
||
|
|
var c = options.series.pie.label.background.color;
|
||
|
|
|
||
|
|
if (c == null) {
|
||
|
|
c = slice.color;
|
||
|
|
}
|
||
|
|
|
||
|
|
var pos = "top:" + labelTop + "px;left:" + labelLeft + "px;";
|
||
|
|
$("<div class='pieLabelBackground' style='position:absolute;width:" + label.width() + "px;height:" + label.height() + "px;" + pos + "background-color:" + c + ";'></div>")
|
||
|
|
.css("opacity", options.series.pie.label.background.opacity)
|
||
|
|
.insertBefore(label);
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
} // end individual label function
|
||
|
|
} // end drawLabels function
|
||
|
|
} // end drawPie function
|
||
|
|
} // end draw function
|
||
|
|
|
||
|
|
// Placed here because it needs to be accessed from multiple locations
|
||
|
|
|
||
|
|
function drawDonutHole(layer) {
|
||
|
|
if (options.series.pie.innerRadius > 0) {
|
||
|
|
|
||
|
|
// subtract the center
|
||
|
|
|
||
|
|
layer.save();
|
||
|
|
var innerRadius = options.series.pie.innerRadius > 1 ? options.series.pie.innerRadius : maxRadius * options.series.pie.innerRadius;
|
||
|
|
layer.globalCompositeOperation = "destination-out"; // this does not work with excanvas, but it will fall back to using the stroke color
|
||
|
|
layer.beginPath();
|
||
|
|
layer.fillStyle = options.series.pie.stroke.color;
|
||
|
|
layer.arc(0, 0, innerRadius, 0, Math.PI * 2, false);
|
||
|
|
layer.fill();
|
||
|
|
layer.closePath();
|
||
|
|
layer.restore();
|
||
|
|
|
||
|
|
// add inner stroke
|
||
|
|
|
||
|
|
layer.save();
|
||
|
|
layer.beginPath();
|
||
|
|
layer.strokeStyle = options.series.pie.stroke.color;
|
||
|
|
layer.arc(0, 0, innerRadius, 0, Math.PI * 2, false);
|
||
|
|
layer.stroke();
|
||
|
|
layer.closePath();
|
||
|
|
layer.restore();
|
||
|
|
|
||
|
|
// TODO: add extra shadow inside hole (with a mask) if the pie is tilted.
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//-- Additional Interactive related functions --
|
||
|
|
|
||
|
|
function isPointInPoly(poly, pt) {
|
||
|
|
for(var c = false, i = -1, l = poly.length, j = l - 1; ++i < l; j = i)
|
||
|
|
((poly[i][1] <= pt[1] && pt[1] < poly[j][1]) || (poly[j][1] <= pt[1] && pt[1]< poly[i][1]))
|
||
|
|
&& (pt[0] < (poly[j][0] - poly[i][0]) * (pt[1] - poly[i][1]) / (poly[j][1] - poly[i][1]) + poly[i][0])
|
||
|
|
&& (c = !c);
|
||
|
|
return c;
|
||
|
|
}
|
||
|
|
|
||
|
|
function findNearbySlice(mouseX, mouseY) {
|
||
|
|
|
||
|
|
var slices = plot.getData(),
|
||
|
|
options = plot.getOptions(),
|
||
|
|
radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius,
|
||
|
|
x, y;
|
||
|
|
|
||
|
|
for (var i = 0; i < slices.length; ++i) {
|
||
|
|
|
||
|
|
var s = slices[i];
|
||
|
|
|
||
|
|
if (s.pie.show) {
|
||
|
|
|
||
|
|
ctx.save();
|
||
|
|
ctx.beginPath();
|
||
|
|
ctx.moveTo(0, 0); // Center of the pie
|
||
|
|
//ctx.scale(1, options.series.pie.tilt); // this actually seems to break everything when here.
|
||
|
|
ctx.arc(0, 0, radius, s.startAngle, s.startAngle + s.angle / 2, false);
|
||
|
|
ctx.arc(0, 0, radius, s.startAngle + s.angle / 2, s.startAngle + s.angle, false);
|
||
|
|
ctx.closePath();
|
||
|
|
x = mouseX - centerLeft;
|
||
|
|
y = mouseY - centerTop;
|
||
|
|
|
||
|
|
if (ctx.isPointInPath) {
|
||
|
|
if (ctx.isPointInPath(mouseX - centerLeft, mouseY - centerTop)) {
|
||
|
|
ctx.restore();
|
||
|
|
return {
|
||
|
|
datapoint: [s.percent, s.data],
|
||
|
|
dataIndex: 0,
|
||
|
|
series: s,
|
||
|
|
seriesIndex: i
|
||
|
|
};
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
|
||
|
|
// excanvas for IE doesn;t support isPointInPath, this is a workaround.
|
||
|
|
|
||
|
|
var p1X = radius * Math.cos(s.startAngle),
|
||
|
|
p1Y = radius * Math.sin(s.startAngle),
|
||
|
|
p2X = radius * Math.cos(s.startAngle + s.angle / 4),
|
||
|
|
p2Y = radius * Math.sin(s.startAngle + s.angle / 4),
|
||
|
|
p3X = radius * Math.cos(s.startAngle + s.angle / 2),
|
||
|
|
p3Y = radius * Math.sin(s.startAngle + s.angle / 2),
|
||
|
|
p4X = radius * Math.cos(s.startAngle + s.angle / 1.5),
|
||
|
|
p4Y = radius * Math.sin(s.startAngle + s.angle / 1.5),
|
||
|
|
p5X = radius * Math.cos(s.startAngle + s.angle),
|
||
|
|
p5Y = radius * Math.sin(s.startAngle + s.angle),
|
||
|
|
arrPoly = [[0, 0], [p1X, p1Y], [p2X, p2Y], [p3X, p3Y], [p4X, p4Y], [p5X, p5Y]],
|
||
|
|
arrPoint = [x, y];
|
||
|
|
|
||
|
|
// TODO: perhaps do some mathmatical trickery here with the Y-coordinate to compensate for pie tilt?
|
||
|
|
|
||
|
|
if (isPointInPoly(arrPoly, arrPoint)) {
|
||
|
|
ctx.restore();
|
||
|
|
return {
|
||
|
|
datapoint: [s.percent, s.data],
|
||
|
|
dataIndex: 0,
|
||
|
|
series: s,
|
||
|
|
seriesIndex: i
|
||
|
|
};
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
ctx.restore();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
function onMouseMove(e) {
|
||
|
|
triggerClickHoverEvent("plothover", e);
|
||
|
|
}
|
||
|
|
|
||
|
|
function onClick(e) {
|
||
|
|
triggerClickHoverEvent("plotclick", e);
|
||
|
|
}
|
||
|
|
|
||
|
|
// trigger click or hover event (they send the same parameters so we share their code)
|
||
|
|
|
||
|
|
function triggerClickHoverEvent(eventname, e) {
|
||
|
|
|
||
|
|
var offset = plot.offset();
|
||
|
|
var canvasX = parseInt(e.pageX - offset.left);
|
||
|
|
var canvasY = parseInt(e.pageY - offset.top);
|
||
|
|
var item = findNearbySlice(canvasX, canvasY);
|
||
|
|
|
||
|
|
if (options.grid.autoHighlight) {
|
||
|
|
|
||
|
|
// clear auto-highlights
|
||
|
|
|
||
|
|
for (var i = 0; i < highlights.length; ++i) {
|
||
|
|
var h = highlights[i];
|
||
|
|
if (h.auto == eventname && !(item && h.series == item.series)) {
|
||
|
|
unhighlight(h.series);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// highlight the slice
|
||
|
|
|
||
|
|
if (item) {
|
||
|
|
highlight(item.series, eventname);
|
||
|
|
}
|
||
|
|
|
||
|
|
// trigger any hover bind events
|
||
|
|
|
||
|
|
var pos = { pageX: e.pageX, pageY: e.pageY };
|
||
|
|
target.trigger(eventname, [pos, item]);
|
||
|
|
}
|
||
|
|
|
||
|
|
function highlight(s, auto) {
|
||
|
|
//if (typeof s == "number") {
|
||
|
|
// s = series[s];
|
||
|
|
//}
|
||
|
|
|
||
|
|
var i = indexOfHighlight(s);
|
||
|
|
|
||
|
|
if (i == -1) {
|
||
|
|
highlights.push({ series: s, auto: auto });
|
||
|
|
plot.triggerRedrawOverlay();
|
||
|
|
} else if (!auto) {
|
||
|
|
highlights[i].auto = false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function unhighlight(s) {
|
||
|
|
if (s == null) {
|
||
|
|
highlights = [];
|
||
|
|
plot.triggerRedrawOverlay();
|
||
|
|
}
|
||
|
|
|
||
|
|
//if (typeof s == "number") {
|
||
|
|
// s = series[s];
|
||
|
|
//}
|
||
|
|
|
||
|
|
var i = indexOfHighlight(s);
|
||
|
|
|
||
|
|
if (i != -1) {
|
||
|
|
highlights.splice(i, 1);
|
||
|
|
plot.triggerRedrawOverlay();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function indexOfHighlight(s) {
|
||
|
|
for (var i = 0; i < highlights.length; ++i) {
|
||
|
|
var h = highlights[i];
|
||
|
|
if (h.series == s)
|
||
|
|
return i;
|
||
|
|
}
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
function drawOverlay(plot, octx) {
|
||
|
|
|
||
|
|
var options = plot.getOptions();
|
||
|
|
|
||
|
|
var radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius;
|
||
|
|
|
||
|
|
octx.save();
|
||
|
|
octx.translate(centerLeft, centerTop);
|
||
|
|
octx.scale(1, options.series.pie.tilt);
|
||
|
|
|
||
|
|
for (var i = 0; i < highlights.length; ++i) {
|
||
|
|
drawHighlight(highlights[i].series);
|
||
|
|
}
|
||
|
|
|
||
|
|
drawDonutHole(octx);
|
||
|
|
|
||
|
|
octx.restore();
|
||
|
|
|
||
|
|
function drawHighlight(series) {
|
||
|
|
|
||
|
|
if (series.angle <= 0 || isNaN(series.angle)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
//octx.fillStyle = parseColor(options.series.pie.highlight.color).scale(null, null, null, options.series.pie.highlight.opacity).toString();
|
||
|
|
octx.fillStyle = "rgba(255, 255, 255, " + options.series.pie.highlight.opacity + ")"; // this is temporary until we have access to parseColor
|
||
|
|
octx.beginPath();
|
||
|
|
if (Math.abs(series.angle - Math.PI * 2) > 0.000000001) {
|
||
|
|
octx.moveTo(0, 0); // Center of the pie
|
||
|
|
}
|
||
|
|
octx.arc(0, 0, radius, series.startAngle, series.startAngle + series.angle / 2, false);
|
||
|
|
octx.arc(0, 0, radius, series.startAngle + series.angle / 2, series.startAngle + series.angle, false);
|
||
|
|
octx.closePath();
|
||
|
|
octx.fill();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} // end init (plugin body)
|
||
|
|
|
||
|
|
// define pie specific options and their default values
|
||
|
|
|
||
|
|
var options = {
|
||
|
|
series: {
|
||
|
|
pie: {
|
||
|
|
show: false,
|
||
|
|
radius: "auto", // actual radius of the visible pie (based on full calculated radius if <=1, or hard pixel value)
|
||
|
|
innerRadius: 0, /* for donut */
|
||
|
|
startAngle: 3/2,
|
||
|
|
tilt: 1,
|
||
|
|
shadow: {
|
||
|
|
left: 5, // shadow left offset
|
||
|
|
top: 15, // shadow top offset
|
||
|
|
alpha: 0.02 // shadow alpha
|
||
|
|
},
|
||
|
|
offset: {
|
||
|
|
top: 0,
|
||
|
|
left: "auto"
|
||
|
|
},
|
||
|
|
stroke: {
|
||
|
|
color: "#fff",
|
||
|
|
width: 1
|
||
|
|
},
|
||
|
|
label: {
|
||
|
|
show: "auto",
|
||
|
|
formatter: function(label, slice) {
|
||
|
|
return "<div style='font-size:x-small;text-align:center;padding:2px;color:" + slice.color + ";'>" + label + "<br/>" + Math.round(slice.percent) + "%</div>";
|
||
|
|
}, // formatter function
|
||
|
|
radius: 1, // radius at which to place the labels (based on full calculated radius if <=1, or hard pixel value)
|
||
|
|
background: {
|
||
|
|
color: null,
|
||
|
|
opacity: 0
|
||
|
|
},
|
||
|
|
threshold: 0 // percentage at which to hide the label (i.e. the slice is too narrow)
|
||
|
|
},
|
||
|
|
combine: {
|
||
|
|
threshold: -1, // percentage at which to combine little slices into one larger slice
|
||
|
|
color: null, // color to give the new slice (auto-generated if null)
|
||
|
|
label: "Other" // label to give the new slice
|
||
|
|
},
|
||
|
|
highlight: {
|
||
|
|
//color: "#fff", // will add this functionality once parseColor is available
|
||
|
|
opacity: 0.5
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
$.plot.plugins.push({
|
||
|
|
init: init,
|
||
|
|
options: options,
|
||
|
|
name: "pie",
|
||
|
|
version: "1.1"
|
||
|
|
});
|
||
|
|
|
||
|
|
})(jQuery);
|
||
|
|
|
||
|
|
/* Flot plugin for automatically redrawing plots as the placeholder resizes.
|
||
|
|
|
||
|
|
Copyright (c) 2007-2014 IOLA and Ole Laursen.
|
||
|
|
Licensed under the MIT license.
|
||
|
|
|
||
|
|
It works by listening for changes on the placeholder div (through the jQuery
|
||
|
|
resize event plugin) - if the size changes, it will redraw the plot.
|
||
|
|
|
||
|
|
There are no options. If you need to disable the plugin for some plots, you
|
||
|
|
can just fix the size of their placeholders.
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* Inline dependency:
|
||
|
|
* jQuery resize event - v1.1 - 3/14/2010
|
||
|
|
* http://benalman.com/projects/jquery-resize-plugin/
|
||
|
|
*
|
||
|
|
* Copyright (c) 2010 "Cowboy" Ben Alman
|
||
|
|
* Dual licensed under the MIT and GPL licenses.
|
||
|
|
* http://benalman.com/about/license/
|
||
|
|
*/
|
||
|
|
(function($,e,t){"$:nomunge";var i=[],n=$.resize=$.extend($.resize,{}),a,r=false,s="setTimeout",u="resize",m=u+"-special-event",o="pendingDelay",l="activeDelay",f="throttleWindow";n[o]=200;n[l]=20;n[f]=true;$.event.special[u]={setup:function(){if(!n[f]&&this[s]){return false}var e=$(this);i.push(this);e.data(m,{w:e.width(),h:e.height()});if(i.length===1){a=t;h()}},teardown:function(){if(!n[f]&&this[s]){return false}var e=$(this);for(var t=i.length-1;t>=0;t--){if(i[t]==this){i.splice(t,1);break}}e.removeData(m);if(!i.length){if(r){cancelAnimationFrame(a)}else{clearTimeout(a)}a=null}},add:function(e){if(!n[f]&&this[s]){return false}var i;function a(e,n,a){var r=$(this),s=r.data(m)||{};s.w=n!==t?n:r.width();s.h=a!==t?a:r.height();i.apply(this,arguments)}if($.isFunction(e)){i=e;return a}else{i=e.handler;e.handler=a}}};function h(t){if(r===true){r=t||1}for(var s=i.length-1;s>=0;s--){var l=$(i[s]);if(l[0]==e||l.is(":visible")){var f=l.width(),c=l.height(),d=l.data(m);if(d&&(f!==d.w||c!==d.h)){l.trigger(u,[d.w=f,d.h=c]);r=t||true}}else{d=l.data(m);d.w=0;d.h=0}}if(a!==null){if(r&&(t==null||t-r<1e3)){a=e.requestAnimationFrame(h)}else{a=setTimeout(h,n[o]);r=false}}}if(!e.requestAnimationFrame){e.requestAnimationFrame=function(){return e.webkitRequestAnimationFrame||e.mozRequestAnimationFrame||e.oRequestAnimationFrame||e.msRequestAnimationFrame||function(t,i){return e.setTimeout(function(){t((new Date).getTime())},n[l])}}()}if(!e.cancelAnimationFrame){e.cancelAnimationFrame=function(){return e.webkitCancelRequestAnimationFrame||e.mozCancelRequestAnimationFrame||e.oCancelRequestAnimationFrame||e.msCancelRequestAnimationFrame||clearTimeout}()}})(jQuery,this);
|
||
|
|
|
||
|
|
(function ($) {
|
||
|
|
var options = { }; // no options
|
||
|
|
|
||
|
|
function init(plot) {
|
||
|
|
function onResize() {
|
||
|
|
var placeholder = plot.getPlaceholder();
|
||
|
|
|
||
|
|
// somebody might have hidden us and we can't plot
|
||
|
|
// when we don't have the dimensions
|
||
|
|
if (placeholder.width() == 0 || placeholder.height() == 0)
|
||
|
|
return;
|
||
|
|
|
||
|
|
plot.resize();
|
||
|
|
plot.setupGrid();
|
||
|
|
plot.draw();
|
||
|
|
}
|
||
|
|
|
||
|
|
function bindEvents(plot, eventHolder) {
|
||
|
|
plot.getPlaceholder().resize(onResize);
|
||
|
|
}
|
||
|
|
|
||
|
|
function shutdown(plot, eventHolder) {
|
||
|
|
plot.getPlaceholder().unbind("resize", onResize);
|
||
|
|
}
|
||
|
|
|
||
|
|
plot.hooks.bindEvents.push(bindEvents);
|
||
|
|
plot.hooks.shutdown.push(shutdown);
|
||
|
|
}
|
||
|
|
|
||
|
|
$.plot.plugins.push({
|
||
|
|
init: init,
|
||
|
|
options: options,
|
||
|
|
name: 'resize',
|
||
|
|
version: '1.0'
|
||
|
|
});
|
||
|
|
})(jQuery);
|
||
|
|
|
||
|
|
/* Flot plugin for selecting regions of a plot.
|
||
|
|
|
||
|
|
Copyright (c) 2007-2014 IOLA and Ole Laursen.
|
||
|
|
Licensed under the MIT license.
|
||
|
|
|
||
|
|
The plugin supports these options:
|
||
|
|
|
||
|
|
selection: {
|
||
|
|
mode: null or "x" or "y" or "xy",
|
||
|
|
color: color,
|
||
|
|
shape: "round" or "miter" or "bevel",
|
||
|
|
minSize: number of pixels
|
||
|
|
}
|
||
|
|
|
||
|
|
Selection support is enabled by setting the mode to one of "x", "y" or "xy".
|
||
|
|
In "x" mode, the user will only be able to specify the x range, similarly for
|
||
|
|
"y" mode. For "xy", the selection becomes a rectangle where both ranges can be
|
||
|
|
specified. "color" is color of the selection (if you need to change the color
|
||
|
|
later on, you can get to it with plot.getOptions().selection.color). "shape"
|
||
|
|
is the shape of the corners of the selection.
|
||
|
|
|
||
|
|
"minSize" is the minimum size a selection can be in pixels. This value can
|
||
|
|
be customized to determine the smallest size a selection can be and still
|
||
|
|
have the selection rectangle be displayed. When customizing this value, the
|
||
|
|
fact that it refers to pixels, not axis units must be taken into account.
|
||
|
|
Thus, for example, if there is a bar graph in time mode with BarWidth set to 1
|
||
|
|
minute, setting "minSize" to 1 will not make the minimum selection size 1
|
||
|
|
minute, but rather 1 pixel. Note also that setting "minSize" to 0 will prevent
|
||
|
|
"plotunselected" events from being fired when the user clicks the mouse without
|
||
|
|
dragging.
|
||
|
|
|
||
|
|
When selection support is enabled, a "plotselected" event will be emitted on
|
||
|
|
the DOM element you passed into the plot function. The event handler gets a
|
||
|
|
parameter with the ranges selected on the axes, like this:
|
||
|
|
|
||
|
|
placeholder.bind( "plotselected", function( event, ranges ) {
|
||
|
|
alert("You selected " + ranges.xaxis.from + " to " + ranges.xaxis.to)
|
||
|
|
// similar for yaxis - with multiple axes, the extra ones are in
|
||
|
|
// x2axis, x3axis, ...
|
||
|
|
});
|
||
|
|
|
||
|
|
The "plotselected" event is only fired when the user has finished making the
|
||
|
|
selection. A "plotselecting" event is fired during the process with the same
|
||
|
|
parameters as the "plotselected" event, in case you want to know what's
|
||
|
|
happening while it's happening,
|
||
|
|
|
||
|
|
A "plotunselected" event with no arguments is emitted when the user clicks the
|
||
|
|
mouse to remove the selection. As stated above, setting "minSize" to 0 will
|
||
|
|
destroy this behavior.
|
||
|
|
|
||
|
|
The plugin allso adds the following methods to the plot object:
|
||
|
|
|
||
|
|
- setSelection( ranges, preventEvent )
|
||
|
|
|
||
|
|
Set the selection rectangle. The passed in ranges is on the same form as
|
||
|
|
returned in the "plotselected" event. If the selection mode is "x", you
|
||
|
|
should put in either an xaxis range, if the mode is "y" you need to put in
|
||
|
|
an yaxis range and both xaxis and yaxis if the selection mode is "xy", like
|
||
|
|
this:
|
||
|
|
|
||
|
|
setSelection({ xaxis: { from: 0, to: 10 }, yaxis: { from: 40, to: 60 } });
|
||
|
|
|
||
|
|
setSelection will trigger the "plotselected" event when called. If you don't
|
||
|
|
want that to happen, e.g. if you're inside a "plotselected" handler, pass
|
||
|
|
true as the second parameter. If you are using multiple axes, you can
|
||
|
|
specify the ranges on any of those, e.g. as x2axis/x3axis/... instead of
|
||
|
|
xaxis, the plugin picks the first one it sees.
|
||
|
|
|
||
|
|
- clearSelection( preventEvent )
|
||
|
|
|
||
|
|
Clear the selection rectangle. Pass in true to avoid getting a
|
||
|
|
"plotunselected" event.
|
||
|
|
|
||
|
|
- getSelection()
|
||
|
|
|
||
|
|
Returns the current selection in the same format as the "plotselected"
|
||
|
|
event. If there's currently no selection, the function returns null.
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
(function ($) {
|
||
|
|
function init(plot) {
|
||
|
|
var selection = {
|
||
|
|
first: { x: -1, y: -1}, second: { x: -1, y: -1},
|
||
|
|
show: false,
|
||
|
|
active: false
|
||
|
|
};
|
||
|
|
|
||
|
|
// FIXME: The drag handling implemented here should be
|
||
|
|
// abstracted out, there's some similar code from a library in
|
||
|
|
// the navigation plugin, this should be massaged a bit to fit
|
||
|
|
// the Flot cases here better and reused. Doing this would
|
||
|
|
// make this plugin much slimmer.
|
||
|
|
var savedhandlers = {};
|
||
|
|
|
||
|
|
var mouseUpHandler = null;
|
||
|
|
|
||
|
|
function onMouseMove(e) {
|
||
|
|
if (selection.active) {
|
||
|
|
updateSelection(e);
|
||
|
|
|
||
|
|
plot.getPlaceholder().trigger("plotselecting", [ getSelection() ]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function onMouseDown(e) {
|
||
|
|
if (e.which != 1) // only accept left-click
|
||
|
|
return;
|
||
|
|
|
||
|
|
// cancel out any text selections
|
||
|
|
document.body.focus();
|
||
|
|
|
||
|
|
// prevent text selection and drag in old-school browsers
|
||
|
|
if (document.onselectstart !== undefined && savedhandlers.onselectstart == null) {
|
||
|
|
savedhandlers.onselectstart = document.onselectstart;
|
||
|
|
document.onselectstart = function () { return false; };
|
||
|
|
}
|
||
|
|
if (document.ondrag !== undefined && savedhandlers.ondrag == null) {
|
||
|
|
savedhandlers.ondrag = document.ondrag;
|
||
|
|
document.ondrag = function () { return false; };
|
||
|
|
}
|
||
|
|
|
||
|
|
setSelectionPos(selection.first, e);
|
||
|
|
|
||
|
|
selection.active = true;
|
||
|
|
|
||
|
|
// this is a bit silly, but we have to use a closure to be
|
||
|
|
// able to whack the same handler again
|
||
|
|
mouseUpHandler = function (e) { onMouseUp(e); };
|
||
|
|
|
||
|
|
$(document).one("mouseup", mouseUpHandler);
|
||
|
|
}
|
||
|
|
|
||
|
|
function onMouseUp(e) {
|
||
|
|
mouseUpHandler = null;
|
||
|
|
|
||
|
|
// revert drag stuff for old-school browsers
|
||
|
|
if (document.onselectstart !== undefined)
|
||
|
|
document.onselectstart = savedhandlers.onselectstart;
|
||
|
|
if (document.ondrag !== undefined)
|
||
|
|
document.ondrag = savedhandlers.ondrag;
|
||
|
|
|
||
|
|
// no more dragging
|
||
|
|
selection.active = false;
|
||
|
|
updateSelection(e);
|
||
|
|
|
||
|
|
if (selectionIsSane())
|
||
|
|
triggerSelectedEvent();
|
||
|
|
else {
|
||
|
|
// this counts as a clear
|
||
|
|
plot.getPlaceholder().trigger("plotunselected", [ ]);
|
||
|
|
plot.getPlaceholder().trigger("plotselecting", [ null ]);
|
||
|
|
}
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
function getSelection() {
|
||
|
|
if (!selectionIsSane())
|
||
|
|
return null;
|
||
|
|
|
||
|
|
if (!selection.show) return null;
|
||
|
|
|
||
|
|
var r = {}, c1 = selection.first, c2 = selection.second;
|
||
|
|
$.each(plot.getAxes(), function (name, axis) {
|
||
|
|
if (axis.used) {
|
||
|
|
var p1 = axis.c2p(c1[axis.direction]), p2 = axis.c2p(c2[axis.direction]);
|
||
|
|
r[name] = { from: Math.min(p1, p2), to: Math.max(p1, p2) };
|
||
|
|
}
|
||
|
|
});
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
function triggerSelectedEvent() {
|
||
|
|
var r = getSelection();
|
||
|
|
|
||
|
|
plot.getPlaceholder().trigger("plotselected", [ r ]);
|
||
|
|
|
||
|
|
// backwards-compat stuff, to be removed in future
|
||
|
|
if (r.xaxis && r.yaxis)
|
||
|
|
plot.getPlaceholder().trigger("selected", [ { x1: r.xaxis.from, y1: r.yaxis.from, x2: r.xaxis.to, y2: r.yaxis.to } ]);
|
||
|
|
}
|
||
|
|
|
||
|
|
function clamp(min, value, max) {
|
||
|
|
return value < min ? min: (value > max ? max: value);
|
||
|
|
}
|
||
|
|
|
||
|
|
function setSelectionPos(pos, e) {
|
||
|
|
var o = plot.getOptions();
|
||
|
|
var offset = plot.getPlaceholder().offset();
|
||
|
|
var plotOffset = plot.getPlotOffset();
|
||
|
|
pos.x = clamp(0, e.pageX - offset.left - plotOffset.left, plot.width());
|
||
|
|
pos.y = clamp(0, e.pageY - offset.top - plotOffset.top, plot.height());
|
||
|
|
|
||
|
|
if (o.selection.mode == "y")
|
||
|
|
pos.x = pos == selection.first ? 0 : plot.width();
|
||
|
|
|
||
|
|
if (o.selection.mode == "x")
|
||
|
|
pos.y = pos == selection.first ? 0 : plot.height();
|
||
|
|
}
|
||
|
|
|
||
|
|
function updateSelection(pos) {
|
||
|
|
if (pos.pageX == null)
|
||
|
|
return;
|
||
|
|
|
||
|
|
setSelectionPos(selection.second, pos);
|
||
|
|
if (selectionIsSane()) {
|
||
|
|
selection.show = true;
|
||
|
|
plot.triggerRedrawOverlay();
|
||
|
|
}
|
||
|
|
else
|
||
|
|
clearSelection(true);
|
||
|
|
}
|
||
|
|
|
||
|
|
function clearSelection(preventEvent) {
|
||
|
|
if (selection.show) {
|
||
|
|
selection.show = false;
|
||
|
|
plot.triggerRedrawOverlay();
|
||
|
|
if (!preventEvent)
|
||
|
|
plot.getPlaceholder().trigger("plotunselected", [ ]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// function taken from markings support in Flot
|
||
|
|
function extractRange(ranges, coord) {
|
||
|
|
var axis, from, to, key, axes = plot.getAxes();
|
||
|
|
|
||
|
|
for (var k in axes) {
|
||
|
|
axis = axes[k];
|
||
|
|
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" ? plot.getXAxes()[0] : plot.getYAxes()[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 setSelection(ranges, preventEvent) {
|
||
|
|
var axis, range, o = plot.getOptions();
|
||
|
|
|
||
|
|
if (o.selection.mode == "y") {
|
||
|
|
selection.first.x = 0;
|
||
|
|
selection.second.x = plot.width();
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
range = extractRange(ranges, "x");
|
||
|
|
|
||
|
|
selection.first.x = range.axis.p2c(range.from);
|
||
|
|
selection.second.x = range.axis.p2c(range.to);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (o.selection.mode == "x") {
|
||
|
|
selection.first.y = 0;
|
||
|
|
selection.second.y = plot.height();
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
range = extractRange(ranges, "y");
|
||
|
|
|
||
|
|
selection.first.y = range.axis.p2c(range.from);
|
||
|
|
selection.second.y = range.axis.p2c(range.to);
|
||
|
|
}
|
||
|
|
|
||
|
|
selection.show = true;
|
||
|
|
plot.triggerRedrawOverlay();
|
||
|
|
if (!preventEvent && selectionIsSane())
|
||
|
|
triggerSelectedEvent();
|
||
|
|
}
|
||
|
|
|
||
|
|
function selectionIsSane() {
|
||
|
|
var minSize = plot.getOptions().selection.minSize;
|
||
|
|
return Math.abs(selection.second.x - selection.first.x) >= minSize &&
|
||
|
|
Math.abs(selection.second.y - selection.first.y) >= minSize;
|
||
|
|
}
|
||
|
|
|
||
|
|
plot.clearSelection = clearSelection;
|
||
|
|
plot.setSelection = setSelection;
|
||
|
|
plot.getSelection = getSelection;
|
||
|
|
|
||
|
|
plot.hooks.bindEvents.push(function(plot, eventHolder) {
|
||
|
|
var o = plot.getOptions();
|
||
|
|
if (o.selection.mode != null) {
|
||
|
|
eventHolder.mousemove(onMouseMove);
|
||
|
|
eventHolder.mousedown(onMouseDown);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
|
||
|
|
plot.hooks.drawOverlay.push(function (plot, ctx) {
|
||
|
|
// draw selection
|
||
|
|
if (selection.show && selectionIsSane()) {
|
||
|
|
var plotOffset = plot.getPlotOffset();
|
||
|
|
var o = plot.getOptions();
|
||
|
|
|
||
|
|
ctx.save();
|
||
|
|
ctx.translate(plotOffset.left, plotOffset.top);
|
||
|
|
|
||
|
|
var c = $.color.parse(o.selection.color);
|
||
|
|
|
||
|
|
ctx.strokeStyle = c.scale('a', 0.8).toString();
|
||
|
|
ctx.lineWidth = 1;
|
||
|
|
ctx.lineJoin = o.selection.shape;
|
||
|
|
ctx.fillStyle = c.scale('a', 0.4).toString();
|
||
|
|
|
||
|
|
var x = Math.min(selection.first.x, selection.second.x) + 0.5,
|
||
|
|
y = Math.min(selection.first.y, selection.second.y) + 0.5,
|
||
|
|
w = Math.abs(selection.second.x - selection.first.x) - 1,
|
||
|
|
h = Math.abs(selection.second.y - selection.first.y) - 1;
|
||
|
|
|
||
|
|
ctx.fillRect(x, y, w, h);
|
||
|
|
ctx.strokeRect(x, y, w, h);
|
||
|
|
|
||
|
|
ctx.restore();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
plot.hooks.shutdown.push(function (plot, eventHolder) {
|
||
|
|
eventHolder.unbind("mousemove", onMouseMove);
|
||
|
|
eventHolder.unbind("mousedown", onMouseDown);
|
||
|
|
|
||
|
|
if (mouseUpHandler)
|
||
|
|
$(document).unbind("mouseup", mouseUpHandler);
|
||
|
|
});
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
$.plot.plugins.push({
|
||
|
|
init: init,
|
||
|
|
options: {
|
||
|
|
selection: {
|
||
|
|
mode: null, // one of null, "x", "y" or "xy"
|
||
|
|
color: "#e8cfac",
|
||
|
|
shape: "round", // one of "round", "miter", or "bevel"
|
||
|
|
minSize: 5 // minimum number of pixels
|
||
|
|
}
|
||
|
|
},
|
||
|
|
name: 'selection',
|
||
|
|
version: '1.1'
|
||
|
|
});
|
||
|
|
})(jQuery);
|
||
|
|
|
||
|
|
/* Flot plugin for stacking data sets rather than overlyaing them.
|
||
|
|
|
||
|
|
Copyright (c) 2007-2014 IOLA and Ole Laursen.
|
||
|
|
Licensed under the MIT license.
|
||
|
|
|
||
|
|
The plugin assumes the data is sorted on x (or y if stacking horizontally).
|
||
|
|
For line charts, it is assumed that if a line has an undefined gap (from a
|
||
|
|
null point), then the line above it should have the same gap - insert zeros
|
||
|
|
instead of "null" if you want another behaviour. This also holds for the start
|
||
|
|
and end of the chart. Note that stacking a mix of positive and negative values
|
||
|
|
in most instances doesn't make sense (so it looks weird).
|
||
|
|
|
||
|
|
Two or more series are stacked when their "stack" attribute is set to the same
|
||
|
|
key (which can be any number or string or just "true"). To specify the default
|
||
|
|
stack, you can set the stack option like this:
|
||
|
|
|
||
|
|
series: {
|
||
|
|
stack: null/false, true, or a key (number/string)
|
||
|
|
}
|
||
|
|
|
||
|
|
You can also specify it for a single series, like this:
|
||
|
|
|
||
|
|
$.plot( $("#placeholder"), [{
|
||
|
|
data: [ ... ],
|
||
|
|
stack: true
|
||
|
|
}])
|
||
|
|
|
||
|
|
The stacking order is determined by the order of the data series in the array
|
||
|
|
(later series end up on top of the previous).
|
||
|
|
|
||
|
|
Internally, the plugin modifies the datapoints in each series, adding an
|
||
|
|
offset to the y value. For line series, extra data points are inserted through
|
||
|
|
interpolation. If there's a second y value, it's also adjusted (e.g for bar
|
||
|
|
charts or filled areas).
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
(function ($) {
|
||
|
|
var options = {
|
||
|
|
series: { stack: null } // or number/string
|
||
|
|
};
|
||
|
|
|
||
|
|
function init(plot) {
|
||
|
|
function findMatchingSeries(s, allseries) {
|
||
|
|
var res = null;
|
||
|
|
for (var i = 0; i < allseries.length; ++i) {
|
||
|
|
if (s == allseries[i])
|
||
|
|
break;
|
||
|
|
|
||
|
|
if (allseries[i].stack == s.stack)
|
||
|
|
res = allseries[i];
|
||
|
|
}
|
||
|
|
|
||
|
|
return res;
|
||
|
|
}
|
||
|
|
|
||
|
|
function stackData(plot, s, datapoints) {
|
||
|
|
if (s.stack == null || s.stack === false)
|
||
|
|
return;
|
||
|
|
|
||
|
|
var other = findMatchingSeries(s, plot.getData());
|
||
|
|
if (!other)
|
||
|
|
return;
|
||
|
|
|
||
|
|
var ps = datapoints.pointsize,
|
||
|
|
points = datapoints.points,
|
||
|
|
otherps = other.datapoints.pointsize,
|
||
|
|
otherpoints = other.datapoints.points,
|
||
|
|
newpoints = [],
|
||
|
|
px, py, intery, qx, qy, bottom,
|
||
|
|
withlines = s.lines.show,
|
||
|
|
horizontal = s.bars.horizontal,
|
||
|
|
withbottom = ps > 2 && (horizontal ? datapoints.format[2].x : datapoints.format[2].y),
|
||
|
|
withsteps = withlines && s.lines.steps,
|
||
|
|
fromgap = true,
|
||
|
|
keyOffset = horizontal ? 1 : 0,
|
||
|
|
accumulateOffset = horizontal ? 0 : 1,
|
||
|
|
i = 0, j = 0, l, m;
|
||
|
|
|
||
|
|
while (true) {
|
||
|
|
if (i >= points.length)
|
||
|
|
break;
|
||
|
|
|
||
|
|
l = newpoints.length;
|
||
|
|
|
||
|
|
if (points[i] == null) {
|
||
|
|
// copy gaps
|
||
|
|
for (m = 0; m < ps; ++m)
|
||
|
|
newpoints.push(points[i + m]);
|
||
|
|
i += ps;
|
||
|
|
}
|
||
|
|
else if (j >= otherpoints.length) {
|
||
|
|
// for lines, we can't use the rest of the points
|
||
|
|
if (!withlines) {
|
||
|
|
for (m = 0; m < ps; ++m)
|
||
|
|
newpoints.push(points[i + m]);
|
||
|
|
}
|
||
|
|
i += ps;
|
||
|
|
}
|
||
|
|
else if (otherpoints[j] == null) {
|
||
|
|
// oops, got a gap
|
||
|
|
for (m = 0; m < ps; ++m)
|
||
|
|
newpoints.push(null);
|
||
|
|
fromgap = true;
|
||
|
|
j += otherps;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
// cases where we actually got two points
|
||
|
|
px = points[i + keyOffset];
|
||
|
|
py = points[i + accumulateOffset];
|
||
|
|
qx = otherpoints[j + keyOffset];
|
||
|
|
qy = otherpoints[j + accumulateOffset];
|
||
|
|
bottom = 0;
|
||
|
|
|
||
|
|
if (px == qx) {
|
||
|
|
for (m = 0; m < ps; ++m)
|
||
|
|
newpoints.push(points[i + m]);
|
||
|
|
|
||
|
|
newpoints[l + accumulateOffset] += qy;
|
||
|
|
bottom = qy;
|
||
|
|
|
||
|
|
i += ps;
|
||
|
|
j += otherps;
|
||
|
|
}
|
||
|
|
else if (px > qx) {
|
||
|
|
// we got past point below, might need to
|
||
|
|
// insert interpolated extra point
|
||
|
|
if (withlines && i > 0 && points[i - ps] != null) {
|
||
|
|
intery = py + (points[i - ps + accumulateOffset] - py) * (qx - px) / (points[i - ps + keyOffset] - px);
|
||
|
|
newpoints.push(qx);
|
||
|
|
newpoints.push(intery + qy);
|
||
|
|
for (m = 2; m < ps; ++m)
|
||
|
|
newpoints.push(points[i + m]);
|
||
|
|
bottom = qy;
|
||
|
|
}
|
||
|
|
|
||
|
|
j += otherps;
|
||
|
|
}
|
||
|
|
else { // px < qx
|
||
|
|
if (fromgap && withlines) {
|
||
|
|
// if we come from a gap, we just skip this point
|
||
|
|
i += ps;
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (m = 0; m < ps; ++m)
|
||
|
|
newpoints.push(points[i + m]);
|
||
|
|
|
||
|
|
// we might be able to interpolate a point below,
|
||
|
|
// this can give us a better y
|
||
|
|
if (withlines && j > 0 && otherpoints[j - otherps] != null)
|
||
|
|
bottom = qy + (otherpoints[j - otherps + accumulateOffset] - qy) * (px - qx) / (otherpoints[j - otherps + keyOffset] - qx);
|
||
|
|
|
||
|
|
newpoints[l + accumulateOffset] += bottom;
|
||
|
|
|
||
|
|
i += ps;
|
||
|
|
}
|
||
|
|
|
||
|
|
fromgap = false;
|
||
|
|
|
||
|
|
if (l != newpoints.length && withbottom)
|
||
|
|
newpoints[l + 2] += bottom;
|
||
|
|
}
|
||
|
|
|
||
|
|
// maintain the line steps invariant
|
||
|
|
if (withsteps && l != newpoints.length && l > 0
|
||
|
|
&& newpoints[l] != null
|
||
|
|
&& newpoints[l] != newpoints[l - ps]
|
||
|
|
&& newpoints[l + 1] != newpoints[l - ps + 1]) {
|
||
|
|
for (m = 0; m < ps; ++m)
|
||
|
|
newpoints[l + ps + m] = newpoints[l + m];
|
||
|
|
newpoints[l + 1] = newpoints[l - ps + 1];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
datapoints.points = newpoints;
|
||
|
|
}
|
||
|
|
|
||
|
|
plot.hooks.processDatapoints.push(stackData);
|
||
|
|
}
|
||
|
|
|
||
|
|
$.plot.plugins.push({
|
||
|
|
init: init,
|
||
|
|
options: options,
|
||
|
|
name: 'stack',
|
||
|
|
version: '1.2'
|
||
|
|
});
|
||
|
|
})(jQuery);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Flot plugin that provides spline interpolation for line graphs
|
||
|
|
* author: Alex Bardas < alex.bardas@gmail.com >
|
||
|
|
* modified by: Avi Kohn https://github.com/AMKohn
|
||
|
|
* based on the spline interpolation described at:
|
||
|
|
* http://scaledinnovation.com/analytics/splines/aboutSplines.html
|
||
|
|
*
|
||
|
|
* Example usage: (add in plot options series object)
|
||
|
|
* for linespline:
|
||
|
|
* series: {
|
||
|
|
* ...
|
||
|
|
* lines: {
|
||
|
|
* show: false
|
||
|
|
* },
|
||
|
|
* splines: {
|
||
|
|
* show: true,
|
||
|
|
* tension: x, (float between 0 and 1, defaults to 0.5),
|
||
|
|
* lineWidth: y (number, defaults to 2),
|
||
|
|
* fill: z (float between 0 .. 1 or false, as in flot documentation)
|
||
|
|
* },
|
||
|
|
* ...
|
||
|
|
* }
|
||
|
|
* areaspline:
|
||
|
|
* series: {
|
||
|
|
* ...
|
||
|
|
* lines: {
|
||
|
|
* show: true,
|
||
|
|
* lineWidth: 0, (line drawing will not execute)
|
||
|
|
* fill: x, (float between 0 .. 1, as in flot documentation)
|
||
|
|
* ...
|
||
|
|
* },
|
||
|
|
* splines: {
|
||
|
|
* show: true,
|
||
|
|
* tension: 0.5 (float between 0 and 1)
|
||
|
|
* },
|
||
|
|
* ...
|
||
|
|
* }
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
(function($) {
|
||
|
|
'use strict'
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param {Number} x0, y0, x1, y1: coordinates of the end (knot) points of the segment
|
||
|
|
* @param {Number} x2, y2: the next knot (not connected, but needed to calculate p2)
|
||
|
|
* @param {Number} tension: control how far the control points spread
|
||
|
|
* @return {Array}: p1 -> control point, from x1 back toward x0
|
||
|
|
* p2 -> the next control point, returned to become the next segment's p1
|
||
|
|
*
|
||
|
|
* @api private
|
||
|
|
*/
|
||
|
|
function getControlPoints(x0, y0, x1, y1, x2, y2, tension) {
|
||
|
|
|
||
|
|
var pow = Math.pow,
|
||
|
|
sqrt = Math.sqrt,
|
||
|
|
d01, d12, fa, fb, p1x, p1y, p2x, p2y;
|
||
|
|
|
||
|
|
// Scaling factors: distances from this knot to the previous and following knots.
|
||
|
|
d01 = sqrt(pow(x1 - x0, 2) + pow(y1 - y0, 2));
|
||
|
|
d12 = sqrt(pow(x2 - x1, 2) + pow(y2 - y1, 2));
|
||
|
|
|
||
|
|
fa = tension * d01 / (d01 + d12);
|
||
|
|
fb = tension - fa;
|
||
|
|
|
||
|
|
p1x = x1 + fa * (x0 - x2);
|
||
|
|
p1y = y1 + fa * (y0 - y2);
|
||
|
|
|
||
|
|
p2x = x1 - fb * (x0 - x2);
|
||
|
|
p2y = y1 - fb * (y0 - y2);
|
||
|
|
|
||
|
|
return [p1x, p1y, p2x, p2y];
|
||
|
|
}
|
||
|
|
|
||
|
|
var line = [];
|
||
|
|
|
||
|
|
function drawLine(points, ctx, height, fill, seriesColor) {
|
||
|
|
var c = $.color.parse(seriesColor);
|
||
|
|
|
||
|
|
c.a = typeof fill == "number" ? fill : .3;
|
||
|
|
c.normalize();
|
||
|
|
c = c.toString();
|
||
|
|
|
||
|
|
ctx.beginPath();
|
||
|
|
ctx.moveTo(points[0][0], points[0][1]);
|
||
|
|
|
||
|
|
var plength = points.length;
|
||
|
|
|
||
|
|
for (var i = 0; i < plength; i++) {
|
||
|
|
ctx[points[i][3]].apply(ctx, points[i][2]);
|
||
|
|
}
|
||
|
|
|
||
|
|
ctx.stroke();
|
||
|
|
|
||
|
|
ctx.lineWidth = 0;
|
||
|
|
ctx.lineTo(points[plength - 1][0], height);
|
||
|
|
ctx.lineTo(points[0][0], height);
|
||
|
|
|
||
|
|
ctx.closePath();
|
||
|
|
|
||
|
|
if (fill !== false) {
|
||
|
|
ctx.fillStyle = c;
|
||
|
|
ctx.fill();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param {Object} ctx: canvas context
|
||
|
|
* @param {String} type: accepted strings: 'bezier' or 'quadratic' (defaults to quadratic)
|
||
|
|
* @param {Array} points: 2 points for which to draw the interpolation
|
||
|
|
* @param {Array} cpoints: control points for those segment points
|
||
|
|
*
|
||
|
|
* @api private
|
||
|
|
*/
|
||
|
|
function queue(ctx, type, points, cpoints) {
|
||
|
|
if (type === void 0 || (type !== 'bezier' && type !== 'quadratic')) {
|
||
|
|
type = 'quadratic';
|
||
|
|
}
|
||
|
|
type = type + 'CurveTo';
|
||
|
|
|
||
|
|
if (line.length == 0) line.push([points[0], points[1], cpoints.concat(points.slice(2)), type]);
|
||
|
|
else if (type == "quadraticCurveTo" && points.length == 2) {
|
||
|
|
cpoints = cpoints.slice(0, 2).concat(points);
|
||
|
|
|
||
|
|
line.push([points[0], points[1], cpoints, type]);
|
||
|
|
}
|
||
|
|
else line.push([points[2], points[3], cpoints.concat(points.slice(2)), type]);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param {Object} plot
|
||
|
|
* @param {Object} ctx: canvas context
|
||
|
|
* @param {Object} series
|
||
|
|
*
|
||
|
|
* @api private
|
||
|
|
*/
|
||
|
|
|
||
|
|
function drawSpline(plot, ctx, series) {
|
||
|
|
// Not interested if spline is not requested
|
||
|
|
if (series.splines.show !== true) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
var cp = [],
|
||
|
|
// array of control points
|
||
|
|
tension = series.splines.tension || 0.5,
|
||
|
|
idx, x, y, points = series.datapoints.points,
|
||
|
|
ps = series.datapoints.pointsize,
|
||
|
|
plotOffset = plot.getPlotOffset(),
|
||
|
|
len = points.length,
|
||
|
|
pts = [];
|
||
|
|
|
||
|
|
line = [];
|
||
|
|
|
||
|
|
// Cannot display a linespline/areaspline if there are less than 3 points
|
||
|
|
if (len / ps < 4) {
|
||
|
|
$.extend(series.lines, series.splines);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (idx = 0; idx < len; idx += ps) {
|
||
|
|
x = points[idx];
|
||
|
|
y = points[idx + 1];
|
||
|
|
if (x == null || x < series.xaxis.min || x > series.xaxis.max || y < series.yaxis.min || y > series.yaxis.max) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
pts.push(series.xaxis.p2c(x) + plotOffset.left, series.yaxis.p2c(y) + plotOffset.top);
|
||
|
|
}
|
||
|
|
|
||
|
|
len = pts.length;
|
||
|
|
|
||
|
|
// Draw an open curve, not connected at the ends
|
||
|
|
for (idx = 0; idx < len - 2; idx += 2) {
|
||
|
|
cp = cp.concat(getControlPoints.apply(this, pts.slice(idx, idx + 6).concat([tension])));
|
||
|
|
}
|
||
|
|
|
||
|
|
ctx.save();
|
||
|
|
ctx.strokeStyle = series.color;
|
||
|
|
ctx.lineWidth = series.splines.lineWidth;
|
||
|
|
|
||
|
|
queue(ctx, 'quadratic', pts.slice(0, 4), cp.slice(0, 2));
|
||
|
|
|
||
|
|
for (idx = 2; idx < len - 3; idx += 2) {
|
||
|
|
queue(ctx, 'bezier', pts.slice(idx, idx + 4), cp.slice(2 * idx - 2, 2 * idx + 2));
|
||
|
|
}
|
||
|
|
|
||
|
|
queue(ctx, 'quadratic', pts.slice(len - 2, len), [cp[2 * len - 10], cp[2 * len - 9], pts[len - 4], pts[len - 3]]);
|
||
|
|
|
||
|
|
drawLine(line, ctx, plot.height() + 10, series.splines.fill, series.color);
|
||
|
|
|
||
|
|
ctx.restore();
|
||
|
|
}
|
||
|
|
|
||
|
|
$.plot.plugins.push({
|
||
|
|
init: function(plot) {
|
||
|
|
plot.hooks.drawSeries.push(drawSpline);
|
||
|
|
},
|
||
|
|
options: {
|
||
|
|
series: {
|
||
|
|
splines: {
|
||
|
|
show: false,
|
||
|
|
lineWidth: 2,
|
||
|
|
tension: 0.5,
|
||
|
|
fill: false
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
name: 'spline',
|
||
|
|
version: '0.8.2'
|
||
|
|
});
|
||
|
|
})(jQuery);
|
||
|
|
|
||
|
|
/* Flot plugin that adds some extra symbols for plotting points.
|
||
|
|
|
||
|
|
Copyright (c) 2007-2014 IOLA and Ole Laursen.
|
||
|
|
Licensed under the MIT license.
|
||
|
|
|
||
|
|
The symbols are accessed as strings through the standard symbol options:
|
||
|
|
|
||
|
|
series: {
|
||
|
|
points: {
|
||
|
|
symbol: "square" // or "diamond", "triangle", "cross"
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
(function ($) {
|
||
|
|
function processRawData(plot, series, datapoints) {
|
||
|
|
// we normalize the area of each symbol so it is approximately the
|
||
|
|
// same as a circle of the given radius
|
||
|
|
|
||
|
|
var handlers = {
|
||
|
|
square: function (ctx, x, y, radius, shadow) {
|
||
|
|
// pi * r^2 = (2s)^2 => s = r * sqrt(pi)/2
|
||
|
|
var size = radius * Math.sqrt(Math.PI) / 2;
|
||
|
|
ctx.rect(x - size, y - size, size + size, size + size);
|
||
|
|
},
|
||
|
|
diamond: function (ctx, x, y, radius, shadow) {
|
||
|
|
// pi * r^2 = 2s^2 => s = r * sqrt(pi/2)
|
||
|
|
var size = radius * Math.sqrt(Math.PI / 2);
|
||
|
|
ctx.moveTo(x - size, y);
|
||
|
|
ctx.lineTo(x, y - size);
|
||
|
|
ctx.lineTo(x + size, y);
|
||
|
|
ctx.lineTo(x, y + size);
|
||
|
|
ctx.lineTo(x - size, y);
|
||
|
|
},
|
||
|
|
triangle: function (ctx, x, y, radius, shadow) {
|
||
|
|
// pi * r^2 = 1/2 * s^2 * sin (pi / 3) => s = r * sqrt(2 * pi / sin(pi / 3))
|
||
|
|
var size = radius * Math.sqrt(2 * Math.PI / Math.sin(Math.PI / 3));
|
||
|
|
var height = size * Math.sin(Math.PI / 3);
|
||
|
|
ctx.moveTo(x - size/2, y + height/2);
|
||
|
|
ctx.lineTo(x + size/2, y + height/2);
|
||
|
|
if (!shadow) {
|
||
|
|
ctx.lineTo(x, y - height/2);
|
||
|
|
ctx.lineTo(x - size/2, y + height/2);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
cross: function (ctx, x, y, radius, shadow) {
|
||
|
|
// pi * r^2 = (2s)^2 => s = r * sqrt(pi)/2
|
||
|
|
var size = radius * Math.sqrt(Math.PI) / 2;
|
||
|
|
ctx.moveTo(x - size, y - size);
|
||
|
|
ctx.lineTo(x + size, y + size);
|
||
|
|
ctx.moveTo(x - size, y + size);
|
||
|
|
ctx.lineTo(x + size, y - size);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
var s = series.points.symbol;
|
||
|
|
if (handlers[s])
|
||
|
|
series.points.symbol = handlers[s];
|
||
|
|
}
|
||
|
|
|
||
|
|
function init(plot) {
|
||
|
|
plot.hooks.processDatapoints.push(processRawData);
|
||
|
|
}
|
||
|
|
|
||
|
|
$.plot.plugins.push({
|
||
|
|
init: init,
|
||
|
|
name: 'symbols',
|
||
|
|
version: '1.0'
|
||
|
|
});
|
||
|
|
})(jQuery);
|
||
|
|
|
||
|
|
/* Flot plugin for thresholding data.
|
||
|
|
|
||
|
|
Copyright (c) 2007-2014 IOLA and Ole Laursen.
|
||
|
|
Licensed under the MIT license.
|
||
|
|
|
||
|
|
The plugin supports these options:
|
||
|
|
|
||
|
|
series: {
|
||
|
|
threshold: {
|
||
|
|
below: number
|
||
|
|
color: colorspec
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
It can also be applied to a single series, like this:
|
||
|
|
|
||
|
|
$.plot( $("#placeholder"), [{
|
||
|
|
data: [ ... ],
|
||
|
|
threshold: { ... }
|
||
|
|
}])
|
||
|
|
|
||
|
|
An array can be passed for multiple thresholding, like this:
|
||
|
|
|
||
|
|
threshold: [{
|
||
|
|
below: number1
|
||
|
|
color: color1
|
||
|
|
},{
|
||
|
|
below: number2
|
||
|
|
color: color2
|
||
|
|
}]
|
||
|
|
|
||
|
|
These multiple threshold objects can be passed in any order since they are
|
||
|
|
sorted by the processing function.
|
||
|
|
|
||
|
|
The data points below "below" are drawn with the specified color. This makes
|
||
|
|
it easy to mark points below 0, e.g. for budget data.
|
||
|
|
|
||
|
|
Internally, the plugin works by splitting the data into two series, above and
|
||
|
|
below the threshold. The extra series below the threshold will have its label
|
||
|
|
cleared and the special "originSeries" attribute set to the original series.
|
||
|
|
You may need to check for this in hover events.
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
(function ($) {
|
||
|
|
var options = {
|
||
|
|
series: { threshold: null } // or { below: number, color: color spec}
|
||
|
|
};
|
||
|
|
|
||
|
|
function init(plot) {
|
||
|
|
function thresholdData(plot, s, datapoints, below, color) {
|
||
|
|
var ps = datapoints.pointsize, i, x, y, p, prevp,
|
||
|
|
thresholded = $.extend({}, s); // note: shallow copy
|
||
|
|
|
||
|
|
thresholded.datapoints = { points: [], pointsize: ps, format: datapoints.format };
|
||
|
|
thresholded.label = null;
|
||
|
|
thresholded.color = color;
|
||
|
|
thresholded.threshold = null;
|
||
|
|
thresholded.originSeries = s;
|
||
|
|
thresholded.data = [];
|
||
|
|
|
||
|
|
var origpoints = datapoints.points,
|
||
|
|
addCrossingPoints = s.lines.show;
|
||
|
|
|
||
|
|
var threspoints = [];
|
||
|
|
var newpoints = [];
|
||
|
|
var m;
|
||
|
|
|
||
|
|
for (i = 0; i < origpoints.length; i += ps) {
|
||
|
|
x = origpoints[i];
|
||
|
|
y = origpoints[i + 1];
|
||
|
|
|
||
|
|
prevp = p;
|
||
|
|
if (y < below)
|
||
|
|
p = threspoints;
|
||
|
|
else
|
||
|
|
p = newpoints;
|
||
|
|
|
||
|
|
if (addCrossingPoints && prevp != p && x != null
|
||
|
|
&& i > 0 && origpoints[i - ps] != null) {
|
||
|
|
var interx = x + (below - y) * (x - origpoints[i - ps]) / (y - origpoints[i - ps + 1]);
|
||
|
|
prevp.push(interx);
|
||
|
|
prevp.push(below);
|
||
|
|
for (m = 2; m < ps; ++m)
|
||
|
|
prevp.push(origpoints[i + m]);
|
||
|
|
|
||
|
|
p.push(null); // start new segment
|
||
|
|
p.push(null);
|
||
|
|
for (m = 2; m < ps; ++m)
|
||
|
|
p.push(origpoints[i + m]);
|
||
|
|
p.push(interx);
|
||
|
|
p.push(below);
|
||
|
|
for (m = 2; m < ps; ++m)
|
||
|
|
p.push(origpoints[i + m]);
|
||
|
|
}
|
||
|
|
|
||
|
|
p.push(x);
|
||
|
|
p.push(y);
|
||
|
|
for (m = 2; m < ps; ++m)
|
||
|
|
p.push(origpoints[i + m]);
|
||
|
|
}
|
||
|
|
|
||
|
|
datapoints.points = newpoints;
|
||
|
|
thresholded.datapoints.points = threspoints;
|
||
|
|
|
||
|
|
if (thresholded.datapoints.points.length > 0) {
|
||
|
|
var origIndex = $.inArray(s, plot.getData());
|
||
|
|
// Insert newly-generated series right after original one (to prevent it from becoming top-most)
|
||
|
|
plot.getData().splice(origIndex + 1, 0, thresholded);
|
||
|
|
}
|
||
|
|
|
||
|
|
// FIXME: there are probably some edge cases left in bars
|
||
|
|
}
|
||
|
|
|
||
|
|
function processThresholds(plot, s, datapoints) {
|
||
|
|
if (!s.threshold)
|
||
|
|
return;
|
||
|
|
|
||
|
|
if (s.threshold instanceof Array) {
|
||
|
|
s.threshold.sort(function(a, b) {
|
||
|
|
return a.below - b.below;
|
||
|
|
});
|
||
|
|
|
||
|
|
$(s.threshold).each(function(i, th) {
|
||
|
|
thresholdData(plot, s, datapoints, th.below, th.color);
|
||
|
|
});
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
thresholdData(plot, s, datapoints, s.threshold.below, s.threshold.color);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
plot.hooks.processDatapoints.push(processThresholds);
|
||
|
|
}
|
||
|
|
|
||
|
|
$.plot.plugins.push({
|
||
|
|
init: init,
|
||
|
|
options: options,
|
||
|
|
name: 'threshold',
|
||
|
|
version: '1.2'
|
||
|
|
});
|
||
|
|
})(jQuery);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* jquery.flot.tooltip
|
||
|
|
*
|
||
|
|
* description: easy-to-use tooltips for Flot charts
|
||
|
|
* version: 0.9.0
|
||
|
|
* authors: Krzysztof Urbas @krzysu [myviews.pl],Evan Steinkerchner @Roundaround
|
||
|
|
* website: https://github.com/krzysu/flot.tooltip
|
||
|
|
*
|
||
|
|
* build on 2016-07-26
|
||
|
|
* released under MIT License, 2012
|
||
|
|
*/
|
||
|
|
(function ($) {
|
||
|
|
// plugin options, default values
|
||
|
|
var defaultOptions = {
|
||
|
|
tooltip: {
|
||
|
|
show: false,
|
||
|
|
cssClass: "flotTip",
|
||
|
|
content: "%s | X: %x | Y: %y",
|
||
|
|
// allowed templates are:
|
||
|
|
// %s -> series label,
|
||
|
|
// %c -> series color,
|
||
|
|
// %lx -> x axis label (requires flot-axislabels plugin https://github.com/markrcote/flot-axislabels),
|
||
|
|
// %ly -> y axis label (requires flot-axislabels plugin https://github.com/markrcote/flot-axislabels),
|
||
|
|
// %x -> X value,
|
||
|
|
// %y -> Y value,
|
||
|
|
// %x.2 -> precision of X value,
|
||
|
|
// %p -> percent
|
||
|
|
// %n -> value (not percent) of pie chart
|
||
|
|
xDateFormat: null,
|
||
|
|
yDateFormat: null,
|
||
|
|
monthNames: null,
|
||
|
|
dayNames: null,
|
||
|
|
shifts: {
|
||
|
|
x: 10,
|
||
|
|
y: 20
|
||
|
|
},
|
||
|
|
defaultTheme: true,
|
||
|
|
snap: true,
|
||
|
|
lines: false,
|
||
|
|
clickTips: false,
|
||
|
|
|
||
|
|
// callbacks
|
||
|
|
onHover: function (flotItem, $tooltipEl) {},
|
||
|
|
|
||
|
|
$compat: false
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
// dummy default options object for legacy code (<0.8.5) - is deleted later
|
||
|
|
defaultOptions.tooltipOpts = defaultOptions.tooltip;
|
||
|
|
|
||
|
|
// object
|
||
|
|
var FlotTooltip = function (plot) {
|
||
|
|
// variables
|
||
|
|
this.tipPosition = {x: 0, y: 0};
|
||
|
|
|
||
|
|
this.init(plot);
|
||
|
|
};
|
||
|
|
|
||
|
|
// main plugin function
|
||
|
|
FlotTooltip.prototype.init = function (plot) {
|
||
|
|
var that = this;
|
||
|
|
|
||
|
|
// detect other flot plugins
|
||
|
|
var plotPluginsLength = $.plot.plugins.length;
|
||
|
|
this.plotPlugins = [];
|
||
|
|
|
||
|
|
if (plotPluginsLength) {
|
||
|
|
for (var p = 0; p < plotPluginsLength; p++) {
|
||
|
|
this.plotPlugins.push($.plot.plugins[p].name);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
plot.hooks.bindEvents.push(function (plot, eventHolder) {
|
||
|
|
|
||
|
|
// get plot options
|
||
|
|
that.plotOptions = plot.getOptions();
|
||
|
|
|
||
|
|
// for legacy (<0.8.5) implementations
|
||
|
|
if (typeof(that.plotOptions.tooltip) === 'boolean') {
|
||
|
|
that.plotOptions.tooltipOpts.show = that.plotOptions.tooltip;
|
||
|
|
that.plotOptions.tooltip = that.plotOptions.tooltipOpts;
|
||
|
|
delete that.plotOptions.tooltipOpts;
|
||
|
|
}
|
||
|
|
|
||
|
|
// if not enabled return
|
||
|
|
if (that.plotOptions.tooltip.show === false || typeof that.plotOptions.tooltip.show === 'undefined') return;
|
||
|
|
|
||
|
|
// shortcut to access tooltip options
|
||
|
|
that.tooltipOptions = that.plotOptions.tooltip;
|
||
|
|
|
||
|
|
if (that.tooltipOptions.$compat) {
|
||
|
|
that.wfunc = 'width';
|
||
|
|
that.hfunc = 'height';
|
||
|
|
} else {
|
||
|
|
that.wfunc = 'innerWidth';
|
||
|
|
that.hfunc = 'innerHeight';
|
||
|
|
}
|
||
|
|
|
||
|
|
// create tooltip DOM element
|
||
|
|
var $tip = that.getDomElement();
|
||
|
|
|
||
|
|
// bind event
|
||
|
|
$( plot.getPlaceholder() ).bind("plothover", plothover);
|
||
|
|
if (that.tooltipOptions.clickTips) {
|
||
|
|
$( plot.getPlaceholder() ).bind("plotclick", plotclick);
|
||
|
|
}
|
||
|
|
that.clickmode = false;
|
||
|
|
|
||
|
|
$(eventHolder).bind('mousemove', mouseMove);
|
||
|
|
});
|
||
|
|
|
||
|
|
plot.hooks.shutdown.push(function (plot, eventHolder){
|
||
|
|
$(plot.getPlaceholder()).unbind("plothover", plothover);
|
||
|
|
$(plot.getPlaceholder()).unbind("plotclick", plotclick);
|
||
|
|
plot.removeTooltip();
|
||
|
|
$(eventHolder).unbind("mousemove", mouseMove);
|
||
|
|
});
|
||
|
|
|
||
|
|
function mouseMove(e){
|
||
|
|
var pos = {};
|
||
|
|
pos.x = e.pageX;
|
||
|
|
pos.y = e.pageY;
|
||
|
|
plot.setTooltipPosition(pos);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* open the tooltip (if not already open) and freeze it on the current position till the next click
|
||
|
|
*/
|
||
|
|
function plotclick(event, pos, item) {
|
||
|
|
if (! that.clickmode) {
|
||
|
|
// it is the click activating the clicktip
|
||
|
|
plothover(event, pos, item);
|
||
|
|
if (that.getDomElement().is(":visible")) {
|
||
|
|
$(plot.getPlaceholder()).unbind("plothover", plothover);
|
||
|
|
that.clickmode = true;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
// it is the click deactivating the clicktip
|
||
|
|
$( plot.getPlaceholder() ).bind("plothover", plothover);
|
||
|
|
plot.hideTooltip();
|
||
|
|
that.clickmode = false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function plothover(event, pos, item) {
|
||
|
|
// Simple distance formula.
|
||
|
|
var lineDistance = function (p1x, p1y, p2x, p2y) {
|
||
|
|
return Math.sqrt((p2x - p1x) * (p2x - p1x) + (p2y - p1y) * (p2y - p1y));
|
||
|
|
};
|
||
|
|
|
||
|
|
// Here is some voodoo magic for determining the distance to a line form a given point {x, y}.
|
||
|
|
var dotLineLength = function (x, y, x0, y0, x1, y1, o) {
|
||
|
|
if (o && !(o =
|
||
|
|
function (x, y, x0, y0, x1, y1) {
|
||
|
|
if (typeof x0 !== 'undefined') return { x: x0, y: y };
|
||
|
|
else if (typeof y0 !== 'undefined') return { x: x, y: y0 };
|
||
|
|
|
||
|
|
var left,
|
||
|
|
tg = -1 / ((y1 - y0) / (x1 - x0));
|
||
|
|
|
||
|
|
return {
|
||
|
|
x: left = (x1 * (x * tg - y + y0) + x0 * (x * -tg + y - y1)) / (tg * (x1 - x0) + y0 - y1),
|
||
|
|
y: tg * left - tg * x + y
|
||
|
|
};
|
||
|
|
} (x, y, x0, y0, x1, y1),
|
||
|
|
o.x >= Math.min(x0, x1) && o.x <= Math.max(x0, x1) && o.y >= Math.min(y0, y1) && o.y <= Math.max(y0, y1))
|
||
|
|
) {
|
||
|
|
var l1 = lineDistance(x, y, x0, y0), l2 = lineDistance(x, y, x1, y1);
|
||
|
|
return l1 > l2 ? l2 : l1;
|
||
|
|
} else {
|
||
|
|
var a = y0 - y1, b = x1 - x0, c = x0 * y1 - y0 * x1;
|
||
|
|
return Math.abs(a * x + b * y + c) / Math.sqrt(a * a + b * b);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
if (item) {
|
||
|
|
plot.showTooltip(item, that.tooltipOptions.snap ? item : pos);
|
||
|
|
} else if (that.plotOptions.series.lines.show && that.tooltipOptions.lines === true) {
|
||
|
|
var maxDistance = that.plotOptions.grid.mouseActiveRadius;
|
||
|
|
|
||
|
|
var closestTrace = {
|
||
|
|
distance: maxDistance + 1
|
||
|
|
};
|
||
|
|
|
||
|
|
var ttPos = pos;
|
||
|
|
|
||
|
|
$.each(plot.getData(), function (i, series) {
|
||
|
|
var xBeforeIndex = 0,
|
||
|
|
xAfterIndex = -1;
|
||
|
|
|
||
|
|
// Our search here assumes our data is sorted via the x-axis.
|
||
|
|
// TODO: Improve efficiency somehow - search smaller sets of data.
|
||
|
|
for (var j = 1; j < series.data.length; j++) {
|
||
|
|
if (series.data[j - 1][0] <= pos.x && series.data[j][0] >= pos.x) {
|
||
|
|
xBeforeIndex = j - 1;
|
||
|
|
xAfterIndex = j;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (xAfterIndex === -1) {
|
||
|
|
plot.hideTooltip();
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
var pointPrev = { x: series.data[xBeforeIndex][0], y: series.data[xBeforeIndex][1] },
|
||
|
|
pointNext = { x: series.data[xAfterIndex][0], y: series.data[xAfterIndex][1] };
|
||
|
|
|
||
|
|
var distToLine = dotLineLength(series.xaxis.p2c(pos.x), series.yaxis.p2c(pos.y), series.xaxis.p2c(pointPrev.x),
|
||
|
|
series.yaxis.p2c(pointPrev.y), series.xaxis.p2c(pointNext.x), series.yaxis.p2c(pointNext.y), false);
|
||
|
|
|
||
|
|
if (distToLine < closestTrace.distance) {
|
||
|
|
|
||
|
|
var closestIndex = lineDistance(pointPrev.x, pointPrev.y, pos.x, pos.y) <
|
||
|
|
lineDistance(pos.x, pos.y, pointNext.x, pointNext.y) ? xBeforeIndex : xAfterIndex;
|
||
|
|
|
||
|
|
var pointSize = series.datapoints.pointsize;
|
||
|
|
|
||
|
|
// Calculate the point on the line vertically closest to our cursor.
|
||
|
|
var pointOnLine = [
|
||
|
|
pos.x,
|
||
|
|
pointPrev.y + ((pointNext.y - pointPrev.y) * ((pos.x - pointPrev.x) / (pointNext.x - pointPrev.x)))
|
||
|
|
];
|
||
|
|
|
||
|
|
var item = {
|
||
|
|
datapoint: pointOnLine,
|
||
|
|
dataIndex: closestIndex,
|
||
|
|
series: series,
|
||
|
|
seriesIndex: i
|
||
|
|
};
|
||
|
|
|
||
|
|
closestTrace = {
|
||
|
|
distance: distToLine,
|
||
|
|
item: item
|
||
|
|
};
|
||
|
|
|
||
|
|
if (that.tooltipOptions.snap) {
|
||
|
|
ttPos = {
|
||
|
|
pageX: series.xaxis.p2c(pointOnLine[0]),
|
||
|
|
pageY: series.yaxis.p2c(pointOnLine[1])
|
||
|
|
};
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
if (closestTrace.distance < maxDistance + 1)
|
||
|
|
plot.showTooltip(closestTrace.item, ttPos);
|
||
|
|
else
|
||
|
|
plot.hideTooltip();
|
||
|
|
} else {
|
||
|
|
plot.hideTooltip();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Quick little function for setting the tooltip position.
|
||
|
|
plot.setTooltipPosition = function (pos) {
|
||
|
|
var $tip = that.getDomElement();
|
||
|
|
|
||
|
|
var totalTipWidth = $tip.outerWidth() + that.tooltipOptions.shifts.x;
|
||
|
|
var totalTipHeight = $tip.outerHeight() + that.tooltipOptions.shifts.y;
|
||
|
|
if ((pos.x - $(window).scrollLeft()) > ($(window)[that.wfunc]() - totalTipWidth)) {
|
||
|
|
pos.x -= totalTipWidth;
|
||
|
|
pos.x = Math.max(pos.x, 0);
|
||
|
|
}
|
||
|
|
if ((pos.y - $(window).scrollTop()) > ($(window)[that.hfunc]() - totalTipHeight)) {
|
||
|
|
pos.y -= totalTipHeight;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
The section applies the new positioning ONLY if pos.x and pos.y
|
||
|
|
are numbers. If they are undefined or not a number, use the last
|
||
|
|
known numerical position. This hack fixes a bug that kept pie
|
||
|
|
charts from keeping their tooltip positioning.
|
||
|
|
*/
|
||
|
|
|
||
|
|
if (isNaN(pos.x)) {
|
||
|
|
that.tipPosition.x = that.tipPosition.xPrev;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
that.tipPosition.x = pos.x;
|
||
|
|
that.tipPosition.xPrev = pos.x;
|
||
|
|
}
|
||
|
|
if (isNaN(pos.y)) {
|
||
|
|
that.tipPosition.y = that.tipPosition.yPrev;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
that.tipPosition.y = pos.y;
|
||
|
|
that.tipPosition.yPrev = pos.y;
|
||
|
|
}
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
// Quick little function for showing the tooltip.
|
||
|
|
plot.showTooltip = function (target, position, targetPosition) {
|
||
|
|
var $tip = that.getDomElement();
|
||
|
|
|
||
|
|
// convert tooltip content template to real tipText
|
||
|
|
var tipText = that.stringFormat(that.tooltipOptions.content, target);
|
||
|
|
if (tipText === '')
|
||
|
|
return;
|
||
|
|
|
||
|
|
$tip.html(tipText);
|
||
|
|
plot.setTooltipPosition({ x: that.tipPosition.x, y: that.tipPosition.y });
|
||
|
|
$tip.css({
|
||
|
|
left: that.tipPosition.x + that.tooltipOptions.shifts.x,
|
||
|
|
top: that.tipPosition.y + that.tooltipOptions.shifts.y
|
||
|
|
}).show();
|
||
|
|
|
||
|
|
// run callback
|
||
|
|
if (typeof that.tooltipOptions.onHover === 'function') {
|
||
|
|
that.tooltipOptions.onHover(target, $tip);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
// Quick little function for hiding the tooltip.
|
||
|
|
plot.hideTooltip = function () {
|
||
|
|
that.getDomElement().hide().html('');
|
||
|
|
};
|
||
|
|
|
||
|
|
plot.removeTooltip = function() {
|
||
|
|
that.getDomElement().remove();
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* get or create tooltip DOM element
|
||
|
|
* @return jQuery object
|
||
|
|
*/
|
||
|
|
FlotTooltip.prototype.getDomElement = function () {
|
||
|
|
var $tip = $('<div>');
|
||
|
|
if (this.tooltipOptions && this.tooltipOptions.cssClass) {
|
||
|
|
$tip = $('.' + this.tooltipOptions.cssClass);
|
||
|
|
|
||
|
|
if( $tip.length === 0 ){
|
||
|
|
$tip = $('<div />').addClass(this.tooltipOptions.cssClass);
|
||
|
|
$tip.appendTo('body').hide().css({position: 'absolute'});
|
||
|
|
|
||
|
|
if(this.tooltipOptions.defaultTheme) {
|
||
|
|
$tip.css({
|
||
|
|
'background': '#fff',
|
||
|
|
'z-index': '1040',
|
||
|
|
'padding': '0.4em 0.6em',
|
||
|
|
'border-radius': '0.5em',
|
||
|
|
'font-size': '0.8em',
|
||
|
|
'border': '1px solid #111',
|
||
|
|
'display': 'none',
|
||
|
|
'white-space': 'nowrap'
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $tip;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* core function, create tooltip content
|
||
|
|
* @param {string} content - template with tooltip content
|
||
|
|
* @param {object} item - Flot item
|
||
|
|
* @return {string} real tooltip content for current item
|
||
|
|
*/
|
||
|
|
FlotTooltip.prototype.stringFormat = function (content, item) {
|
||
|
|
var percentPattern = /%p\.{0,1}(\d{0,})/;
|
||
|
|
var seriesPattern = /%s/;
|
||
|
|
var colorPattern = /%c/;
|
||
|
|
var xLabelPattern = /%lx/; // requires flot-axislabels plugin https://github.com/markrcote/flot-axislabels, will be ignored if plugin isn't loaded
|
||
|
|
var yLabelPattern = /%ly/; // requires flot-axislabels plugin https://github.com/markrcote/flot-axislabels, will be ignored if plugin isn't loaded
|
||
|
|
var xPattern = /%x\.{0,1}(\d{0,})/;
|
||
|
|
var yPattern = /%y\.{0,1}(\d{0,})/;
|
||
|
|
var xPatternWithoutPrecision = "%x";
|
||
|
|
var yPatternWithoutPrecision = "%y";
|
||
|
|
var customTextPattern = "%ct";
|
||
|
|
var nPiePattern = "%n";
|
||
|
|
|
||
|
|
var x, y, customText, p, n;
|
||
|
|
|
||
|
|
// for threshold plugin we need to read data from different place
|
||
|
|
if (typeof item.series.threshold !== "undefined") {
|
||
|
|
x = item.datapoint[0];
|
||
|
|
y = item.datapoint[1];
|
||
|
|
customText = item.datapoint[2];
|
||
|
|
}
|
||
|
|
|
||
|
|
// for CurvedLines plugin we need to read data from different place
|
||
|
|
else if (typeof item.series.curvedLines !== "undefined") {
|
||
|
|
x = item.datapoint[0];
|
||
|
|
y = item.datapoint[1];
|
||
|
|
}
|
||
|
|
|
||
|
|
else if (typeof item.series.lines !== "undefined" && item.series.lines.steps) {
|
||
|
|
x = item.series.datapoints.points[item.dataIndex * 2];
|
||
|
|
y = item.series.datapoints.points[item.dataIndex * 2 + 1];
|
||
|
|
// TODO: where to find custom text in this variant?
|
||
|
|
customText = "";
|
||
|
|
} else {
|
||
|
|
x = item.series.data[item.dataIndex][0];
|
||
|
|
y = item.series.data[item.dataIndex][1];
|
||
|
|
customText = item.series.data[item.dataIndex][2];
|
||
|
|
}
|
||
|
|
|
||
|
|
// I think this is only in case of threshold plugin
|
||
|
|
if (item.series.label === null && item.series.originSeries) {
|
||
|
|
item.series.label = item.series.originSeries.label;
|
||
|
|
}
|
||
|
|
|
||
|
|
// if it is a function callback get the content string
|
||
|
|
if (typeof(content) === 'function') {
|
||
|
|
content = content(item.series.label, x, y, item);
|
||
|
|
}
|
||
|
|
|
||
|
|
// the case where the passed content is equal to false
|
||
|
|
if (typeof(content) === 'boolean' && !content) {
|
||
|
|
return '';
|
||
|
|
}
|
||
|
|
|
||
|
|
/* replacement of %ct and other multi-character templates must
|
||
|
|
precede the replacement of single-character templates
|
||
|
|
to avoid conflict between '%c' and '%ct' and similar substrings
|
||
|
|
*/
|
||
|
|
if (customText) {
|
||
|
|
content = content.replace(customTextPattern, customText);
|
||
|
|
}
|
||
|
|
|
||
|
|
// percent match for pie charts and stacked percent
|
||
|
|
if (typeof (item.series.percent) !== 'undefined') {
|
||
|
|
p = item.series.percent;
|
||
|
|
} else if (typeof (item.series.percents) !== 'undefined') {
|
||
|
|
p = item.series.percents[item.dataIndex];
|
||
|
|
}
|
||
|
|
if (typeof p === 'number') {
|
||
|
|
content = this.adjustValPrecision(percentPattern, content, p);
|
||
|
|
}
|
||
|
|
|
||
|
|
// replace %n with number of items represented by slice in pie charts
|
||
|
|
if (item.series.hasOwnProperty('pie')) {
|
||
|
|
if (typeof item.series.data[0][1] !== 'undefined') {
|
||
|
|
n = item.series.data[0][1];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (typeof n === 'number') {
|
||
|
|
content = content.replace(nPiePattern, n);
|
||
|
|
}
|
||
|
|
|
||
|
|
// series match
|
||
|
|
if (typeof(item.series.label) !== 'undefined') {
|
||
|
|
content = content.replace(seriesPattern, item.series.label);
|
||
|
|
} else {
|
||
|
|
//remove %s if label is undefined
|
||
|
|
content = content.replace(seriesPattern, "");
|
||
|
|
}
|
||
|
|
|
||
|
|
// color match
|
||
|
|
if (typeof(item.series.color) !== 'undefined') {
|
||
|
|
content = content.replace(colorPattern, item.series.color);
|
||
|
|
} else {
|
||
|
|
//remove %s if color is undefined
|
||
|
|
content = content.replace(colorPattern, "");
|
||
|
|
}
|
||
|
|
|
||
|
|
// x axis label match
|
||
|
|
if (this.hasAxisLabel('xaxis', item)) {
|
||
|
|
content = content.replace(xLabelPattern, item.series.xaxis.options.axisLabel);
|
||
|
|
} else {
|
||
|
|
//remove %lx if axis label is undefined or axislabels plugin not present
|
||
|
|
content = content.replace(xLabelPattern, "");
|
||
|
|
}
|
||
|
|
|
||
|
|
// y axis label match
|
||
|
|
if (this.hasAxisLabel('yaxis', item)) {
|
||
|
|
content = content.replace(yLabelPattern, item.series.yaxis.options.axisLabel);
|
||
|
|
} else {
|
||
|
|
//remove %ly if axis label is undefined or axislabels plugin not present
|
||
|
|
content = content.replace(yLabelPattern, "");
|
||
|
|
}
|
||
|
|
|
||
|
|
// time mode axes with custom dateFormat
|
||
|
|
if (this.isTimeMode('xaxis', item) && this.isXDateFormat(item)) {
|
||
|
|
content = content.replace(xPattern, this.timestampToDate(x, this.tooltipOptions.xDateFormat, item.series.xaxis.options));
|
||
|
|
}
|
||
|
|
if (this.isTimeMode('yaxis', item) && this.isYDateFormat(item)) {
|
||
|
|
content = content.replace(yPattern, this.timestampToDate(y, this.tooltipOptions.yDateFormat, item.series.yaxis.options));
|
||
|
|
}
|
||
|
|
|
||
|
|
// set precision if defined
|
||
|
|
if (typeof x === 'number') {
|
||
|
|
content = this.adjustValPrecision(xPattern, content, x);
|
||
|
|
}
|
||
|
|
if (typeof y === 'number') {
|
||
|
|
content = this.adjustValPrecision(yPattern, content, y);
|
||
|
|
}
|
||
|
|
|
||
|
|
// change x from number to given label, if given
|
||
|
|
if (typeof item.series.xaxis.ticks !== 'undefined') {
|
||
|
|
|
||
|
|
var ticks;
|
||
|
|
if (this.hasRotatedXAxisTicks(item)) {
|
||
|
|
// xaxis.ticks will be an empty array if tickRotor is being used, but the values are available in rotatedTicks
|
||
|
|
ticks = 'rotatedTicks';
|
||
|
|
} else {
|
||
|
|
ticks = 'ticks';
|
||
|
|
}
|
||
|
|
|
||
|
|
// see https://github.com/krzysu/flot.tooltip/issues/65
|
||
|
|
var tickIndex = item.dataIndex + item.seriesIndex;
|
||
|
|
|
||
|
|
for (var xIndex in item.series.xaxis[ticks]) {
|
||
|
|
if (item.series.xaxis[ticks].hasOwnProperty(tickIndex) && !this.isTimeMode('xaxis', item)) {
|
||
|
|
var valueX = (this.isCategoriesMode('xaxis', item)) ? item.series.xaxis[ticks][tickIndex].label : item.series.xaxis[ticks][tickIndex].v;
|
||
|
|
if (valueX === x) {
|
||
|
|
content = content.replace(xPattern, item.series.xaxis[ticks][tickIndex].label.replace(/\$/g, '$$$$'));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// change y from number to given label, if given
|
||
|
|
if (typeof item.series.yaxis.ticks !== 'undefined') {
|
||
|
|
for (var yIndex in item.series.yaxis.ticks) {
|
||
|
|
if (item.series.yaxis.ticks.hasOwnProperty(yIndex)) {
|
||
|
|
var valueY = (this.isCategoriesMode('yaxis', item)) ? item.series.yaxis.ticks[yIndex].label : item.series.yaxis.ticks[yIndex].v;
|
||
|
|
if (valueY === y) {
|
||
|
|
content = content.replace(yPattern, item.series.yaxis.ticks[yIndex].label.replace(/\$/g, '$$$$'));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// if no value customization, use tickFormatter by default
|
||
|
|
if (typeof item.series.xaxis.tickFormatter !== 'undefined') {
|
||
|
|
//escape dollar
|
||
|
|
content = content.replace(xPatternWithoutPrecision, item.series.xaxis.tickFormatter(x, item.series.xaxis).replace(/\$/g, '$$'));
|
||
|
|
}
|
||
|
|
if (typeof item.series.yaxis.tickFormatter !== 'undefined') {
|
||
|
|
//escape dollar
|
||
|
|
content = content.replace(yPatternWithoutPrecision, item.series.yaxis.tickFormatter(y, item.series.yaxis).replace(/\$/g, '$$'));
|
||
|
|
}
|
||
|
|
|
||
|
|
return content;
|
||
|
|
};
|
||
|
|
|
||
|
|
// helpers just for readability
|
||
|
|
FlotTooltip.prototype.isTimeMode = function (axisName, item) {
|
||
|
|
return (typeof item.series[axisName].options.mode !== 'undefined' && item.series[axisName].options.mode === 'time');
|
||
|
|
};
|
||
|
|
|
||
|
|
FlotTooltip.prototype.isXDateFormat = function (item) {
|
||
|
|
return (typeof this.tooltipOptions.xDateFormat !== 'undefined' && this.tooltipOptions.xDateFormat !== null);
|
||
|
|
};
|
||
|
|
|
||
|
|
FlotTooltip.prototype.isYDateFormat = function (item) {
|
||
|
|
return (typeof this.tooltipOptions.yDateFormat !== 'undefined' && this.tooltipOptions.yDateFormat !== null);
|
||
|
|
};
|
||
|
|
|
||
|
|
FlotTooltip.prototype.isCategoriesMode = function (axisName, item) {
|
||
|
|
return (typeof item.series[axisName].options.mode !== 'undefined' && item.series[axisName].options.mode === 'categories');
|
||
|
|
};
|
||
|
|
|
||
|
|
//
|
||
|
|
FlotTooltip.prototype.timestampToDate = function (tmst, dateFormat, options) {
|
||
|
|
var theDate = $.plot.dateGenerator(tmst, options);
|
||
|
|
return $.plot.formatDate(theDate, dateFormat, this.tooltipOptions.monthNames, this.tooltipOptions.dayNames);
|
||
|
|
};
|
||
|
|
|
||
|
|
//
|
||
|
|
FlotTooltip.prototype.adjustValPrecision = function (pattern, content, value) {
|
||
|
|
|
||
|
|
var precision;
|
||
|
|
var matchResult = content.match(pattern);
|
||
|
|
if( matchResult !== null ) {
|
||
|
|
if(RegExp.$1 !== '') {
|
||
|
|
precision = RegExp.$1;
|
||
|
|
value = value.toFixed(precision);
|
||
|
|
|
||
|
|
// only replace content if precision exists, in other case use thickformater
|
||
|
|
content = content.replace(pattern, value);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return content;
|
||
|
|
};
|
||
|
|
|
||
|
|
// other plugins detection below
|
||
|
|
|
||
|
|
// check if flot-axislabels plugin (https://github.com/markrcote/flot-axislabels) is used and that an axis label is given
|
||
|
|
FlotTooltip.prototype.hasAxisLabel = function (axisName, item) {
|
||
|
|
return ($.inArray('axisLabels', this.plotPlugins) !== -1 && typeof item.series[axisName].options.axisLabel !== 'undefined' && item.series[axisName].options.axisLabel.length > 0);
|
||
|
|
};
|
||
|
|
|
||
|
|
// check whether flot-tickRotor, a plugin which allows rotation of X-axis ticks, is being used
|
||
|
|
FlotTooltip.prototype.hasRotatedXAxisTicks = function (item) {
|
||
|
|
return ($.inArray('tickRotor',this.plotPlugins) !== -1 && typeof item.series.xaxis.rotatedTicks !== 'undefined');
|
||
|
|
};
|
||
|
|
|
||
|
|
//
|
||
|
|
var init = function (plot) {
|
||
|
|
new FlotTooltip(plot);
|
||
|
|
};
|
||
|
|
|
||
|
|
// define Flot plugin
|
||
|
|
$.plot.plugins.push({
|
||
|
|
init: init,
|
||
|
|
options: defaultOptions,
|
||
|
|
name: 'tooltip',
|
||
|
|
version: '0.8.5'
|
||
|
|
});
|
||
|
|
|
||
|
|
})(jQuery);
|
||
|
|
|
||
|
|
/* Pretty handling of time axes.
|
||
|
|
|
||
|
|
Copyright (c) 2007-2014 IOLA and Ole Laursen.
|
||
|
|
Licensed under the MIT license.
|
||
|
|
|
||
|
|
Set axis.mode to "time" to enable. See the section "Time series data" in
|
||
|
|
API.txt for details.
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
(function($) {
|
||
|
|
|
||
|
|
var options = {
|
||
|
|
xaxis: {
|
||
|
|
timezone: null, // "browser" for local to the client or timezone for timezone-js
|
||
|
|
timeformat: null, // format string to use
|
||
|
|
twelveHourClock: false, // 12 or 24 time in time mode
|
||
|
|
monthNames: null // list of names of months
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
// round to nearby lower multiple of base
|
||
|
|
|
||
|
|
function floorInBase(n, base) {
|
||
|
|
return base * Math.floor(n / base);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Returns a string with the date d formatted according to fmt.
|
||
|
|
// A subset of the Open Group's strftime format is supported.
|
||
|
|
|
||
|
|
function formatDate(d, fmt, monthNames, dayNames) {
|
||
|
|
|
||
|
|
if (typeof d.strftime == "function") {
|
||
|
|
return d.strftime(fmt);
|
||
|
|
}
|
||
|
|
|
||
|
|
var leftPad = function(n, pad) {
|
||
|
|
n = "" + n;
|
||
|
|
pad = "" + (pad == null ? "0" : pad);
|
||
|
|
return n.length == 1 ? pad + n : n;
|
||
|
|
};
|
||
|
|
|
||
|
|
var r = [];
|
||
|
|
var escape = false;
|
||
|
|
var hours = d.getHours();
|
||
|
|
var isAM = hours < 12;
|
||
|
|
|
||
|
|
if (monthNames == null) {
|
||
|
|
monthNames = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
|
||
|
|
}
|
||
|
|
|
||
|
|
if (dayNames == null) {
|
||
|
|
dayNames = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"];
|
||
|
|
}
|
||
|
|
|
||
|
|
var hours12;
|
||
|
|
|
||
|
|
if (hours > 12) {
|
||
|
|
hours12 = hours - 12;
|
||
|
|
} else if (hours == 0) {
|
||
|
|
hours12 = 12;
|
||
|
|
} else {
|
||
|
|
hours12 = hours;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (var i = 0; i < fmt.length; ++i) {
|
||
|
|
|
||
|
|
var c = fmt.charAt(i);
|
||
|
|
|
||
|
|
if (escape) {
|
||
|
|
switch (c) {
|
||
|
|
case 'a': c = "" + dayNames[d.getDay()]; break;
|
||
|
|
case 'b': c = "" + monthNames[d.getMonth()]; break;
|
||
|
|
case 'd': c = leftPad(d.getDate()); break;
|
||
|
|
case 'e': c = leftPad(d.getDate(), " "); break;
|
||
|
|
case 'h': // For back-compat with 0.7; remove in 1.0
|
||
|
|
case 'H': c = leftPad(hours); break;
|
||
|
|
case 'I': c = leftPad(hours12); break;
|
||
|
|
case 'l': c = leftPad(hours12, " "); break;
|
||
|
|
case 'm': c = leftPad(d.getMonth() + 1); break;
|
||
|
|
case 'M': c = leftPad(d.getMinutes()); break;
|
||
|
|
// quarters not in Open Group's strftime specification
|
||
|
|
case 'q':
|
||
|
|
c = "" + (Math.floor(d.getMonth() / 3) + 1); break;
|
||
|
|
case 'S': c = leftPad(d.getSeconds()); break;
|
||
|
|
case 'y': c = leftPad(d.getFullYear() % 100); break;
|
||
|
|
case 'Y': c = "" + d.getFullYear(); break;
|
||
|
|
case 'p': c = (isAM) ? ("" + "am") : ("" + "pm"); break;
|
||
|
|
case 'P': c = (isAM) ? ("" + "AM") : ("" + "PM"); break;
|
||
|
|
case 'w': c = "" + d.getDay(); break;
|
||
|
|
}
|
||
|
|
r.push(c);
|
||
|
|
escape = false;
|
||
|
|
} else {
|
||
|
|
if (c == "%") {
|
||
|
|
escape = true;
|
||
|
|
} else {
|
||
|
|
r.push(c);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return r.join("");
|
||
|
|
}
|
||
|
|
|
||
|
|
// To have a consistent view of time-based data independent of which time
|
||
|
|
// zone the client happens to be in we need a date-like object independent
|
||
|
|
// of time zones. This is done through a wrapper that only calls the UTC
|
||
|
|
// versions of the accessor methods.
|
||
|
|
|
||
|
|
function makeUtcWrapper(d) {
|
||
|
|
|
||
|
|
function addProxyMethod(sourceObj, sourceMethod, targetObj, targetMethod) {
|
||
|
|
sourceObj[sourceMethod] = function() {
|
||
|
|
return targetObj[targetMethod].apply(targetObj, arguments);
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
var utc = {
|
||
|
|
date: d
|
||
|
|
};
|
||
|
|
|
||
|
|
// support strftime, if found
|
||
|
|
|
||
|
|
if (d.strftime != undefined) {
|
||
|
|
addProxyMethod(utc, "strftime", d, "strftime");
|
||
|
|
}
|
||
|
|
|
||
|
|
addProxyMethod(utc, "getTime", d, "getTime");
|
||
|
|
addProxyMethod(utc, "setTime", d, "setTime");
|
||
|
|
|
||
|
|
var props = ["Date", "Day", "FullYear", "Hours", "Milliseconds", "Minutes", "Month", "Seconds"];
|
||
|
|
|
||
|
|
for (var p = 0; p < props.length; p++) {
|
||
|
|
addProxyMethod(utc, "get" + props[p], d, "getUTC" + props[p]);
|
||
|
|
addProxyMethod(utc, "set" + props[p], d, "setUTC" + props[p]);
|
||
|
|
}
|
||
|
|
|
||
|
|
return utc;
|
||
|
|
};
|
||
|
|
|
||
|
|
// select time zone strategy. This returns a date-like object tied to the
|
||
|
|
// desired timezone
|
||
|
|
|
||
|
|
function dateGenerator(ts, opts) {
|
||
|
|
if (opts.timezone == "browser") {
|
||
|
|
return new Date(ts);
|
||
|
|
} else if (!opts.timezone || opts.timezone == "utc") {
|
||
|
|
return makeUtcWrapper(new Date(ts));
|
||
|
|
} else if (typeof timezoneJS != "undefined" && typeof timezoneJS.Date != "undefined") {
|
||
|
|
var d = new timezoneJS.Date();
|
||
|
|
// timezone-js is fickle, so be sure to set the time zone before
|
||
|
|
// setting the time.
|
||
|
|
d.setTimezone(opts.timezone);
|
||
|
|
d.setTime(ts);
|
||
|
|
return d;
|
||
|
|
} else {
|
||
|
|
return makeUtcWrapper(new Date(ts));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// map of app. size of time units in milliseconds
|
||
|
|
|
||
|
|
var timeUnitSize = {
|
||
|
|
"second": 1000,
|
||
|
|
"minute": 60 * 1000,
|
||
|
|
"hour": 60 * 60 * 1000,
|
||
|
|
"day": 24 * 60 * 60 * 1000,
|
||
|
|
"month": 30 * 24 * 60 * 60 * 1000,
|
||
|
|
"quarter": 3 * 30 * 24 * 60 * 60 * 1000,
|
||
|
|
"year": 365.2425 * 24 * 60 * 60 * 1000
|
||
|
|
};
|
||
|
|
|
||
|
|
// the allowed tick sizes, after 1 year we use
|
||
|
|
// an integer algorithm
|
||
|
|
|
||
|
|
var baseSpec = [
|
||
|
|
[1, "second"], [2, "second"], [5, "second"], [10, "second"],
|
||
|
|
[30, "second"],
|
||
|
|
[1, "minute"], [2, "minute"], [5, "minute"], [10, "minute"],
|
||
|
|
[30, "minute"],
|
||
|
|
[1, "hour"], [2, "hour"], [4, "hour"],
|
||
|
|
[8, "hour"], [12, "hour"],
|
||
|
|
[1, "day"], [2, "day"], [3, "day"],
|
||
|
|
[0.25, "month"], [0.5, "month"], [1, "month"],
|
||
|
|
[2, "month"]
|
||
|
|
];
|
||
|
|
|
||
|
|
// we don't know which variant(s) we'll need yet, but generating both is
|
||
|
|
// cheap
|
||
|
|
|
||
|
|
var specMonths = baseSpec.concat([[3, "month"], [6, "month"],
|
||
|
|
[1, "year"]]);
|
||
|
|
var specQuarters = baseSpec.concat([[1, "quarter"], [2, "quarter"],
|
||
|
|
[1, "year"]]);
|
||
|
|
|
||
|
|
function init(plot) {
|
||
|
|
plot.hooks.processOptions.push(function (plot, options) {
|
||
|
|
$.each(plot.getAxes(), function(axisName, axis) {
|
||
|
|
|
||
|
|
var opts = axis.options;
|
||
|
|
|
||
|
|
if (opts.mode == "time") {
|
||
|
|
axis.tickGenerator = function(axis) {
|
||
|
|
|
||
|
|
var ticks = [];
|
||
|
|
var d = dateGenerator(axis.min, opts);
|
||
|
|
var minSize = 0;
|
||
|
|
|
||
|
|
// make quarter use a possibility if quarters are
|
||
|
|
// mentioned in either of these options
|
||
|
|
|
||
|
|
var spec = (opts.tickSize && opts.tickSize[1] ===
|
||
|
|
"quarter") ||
|
||
|
|
(opts.minTickSize && opts.minTickSize[1] ===
|
||
|
|
"quarter") ? specQuarters : specMonths;
|
||
|
|
|
||
|
|
if (opts.minTickSize != null) {
|
||
|
|
if (typeof opts.tickSize == "number") {
|
||
|
|
minSize = opts.tickSize;
|
||
|
|
} else {
|
||
|
|
minSize = opts.minTickSize[0] * timeUnitSize[opts.minTickSize[1]];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
for (var i = 0; i < spec.length - 1; ++i) {
|
||
|
|
if (axis.delta < (spec[i][0] * timeUnitSize[spec[i][1]]
|
||
|
|
+ spec[i + 1][0] * timeUnitSize[spec[i + 1][1]]) / 2
|
||
|
|
&& spec[i][0] * timeUnitSize[spec[i][1]] >= minSize) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var size = spec[i][0];
|
||
|
|
var unit = spec[i][1];
|
||
|
|
|
||
|
|
// special-case the possibility of several years
|
||
|
|
|
||
|
|
if (unit == "year") {
|
||
|
|
|
||
|
|
// if given a minTickSize in years, just use it,
|
||
|
|
// ensuring that it's an integer
|
||
|
|
|
||
|
|
if (opts.minTickSize != null && opts.minTickSize[1] == "year") {
|
||
|
|
size = Math.floor(opts.minTickSize[0]);
|
||
|
|
} else {
|
||
|
|
|
||
|
|
var magn = Math.pow(10, Math.floor(Math.log(axis.delta / timeUnitSize.year) / Math.LN10));
|
||
|
|
var norm = (axis.delta / timeUnitSize.year) / magn;
|
||
|
|
|
||
|
|
if (norm < 1.5) {
|
||
|
|
size = 1;
|
||
|
|
} else if (norm < 3) {
|
||
|
|
size = 2;
|
||
|
|
} else if (norm < 7.5) {
|
||
|
|
size = 5;
|
||
|
|
} else {
|
||
|
|
size = 10;
|
||
|
|
}
|
||
|
|
|
||
|
|
size *= magn;
|
||
|
|
}
|
||
|
|
|
||
|
|
// minimum size for years is 1
|
||
|
|
|
||
|
|
if (size < 1) {
|
||
|
|
size = 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
axis.tickSize = opts.tickSize || [size, unit];
|
||
|
|
var tickSize = axis.tickSize[0];
|
||
|
|
unit = axis.tickSize[1];
|
||
|
|
|
||
|
|
var step = tickSize * timeUnitSize[unit];
|
||
|
|
|
||
|
|
if (unit == "second") {
|
||
|
|
d.setSeconds(floorInBase(d.getSeconds(), tickSize));
|
||
|
|
} else if (unit == "minute") {
|
||
|
|
d.setMinutes(floorInBase(d.getMinutes(), tickSize));
|
||
|
|
} else if (unit == "hour") {
|
||
|
|
d.setHours(floorInBase(d.getHours(), tickSize));
|
||
|
|
} else if (unit == "month") {
|
||
|
|
d.setMonth(floorInBase(d.getMonth(), tickSize));
|
||
|
|
} else if (unit == "quarter") {
|
||
|
|
d.setMonth(3 * floorInBase(d.getMonth() / 3,
|
||
|
|
tickSize));
|
||
|
|
} else if (unit == "year") {
|
||
|
|
d.setFullYear(floorInBase(d.getFullYear(), tickSize));
|
||
|
|
}
|
||
|
|
|
||
|
|
// reset smaller components
|
||
|
|
|
||
|
|
d.setMilliseconds(0);
|
||
|
|
|
||
|
|
if (step >= timeUnitSize.minute) {
|
||
|
|
d.setSeconds(0);
|
||
|
|
}
|
||
|
|
if (step >= timeUnitSize.hour) {
|
||
|
|
d.setMinutes(0);
|
||
|
|
}
|
||
|
|
if (step >= timeUnitSize.day) {
|
||
|
|
d.setHours(0);
|
||
|
|
}
|
||
|
|
if (step >= timeUnitSize.day * 4) {
|
||
|
|
d.setDate(1);
|
||
|
|
}
|
||
|
|
if (step >= timeUnitSize.month * 2) {
|
||
|
|
d.setMonth(floorInBase(d.getMonth(), 3));
|
||
|
|
}
|
||
|
|
if (step >= timeUnitSize.quarter * 2) {
|
||
|
|
d.setMonth(floorInBase(d.getMonth(), 6));
|
||
|
|
}
|
||
|
|
if (step >= timeUnitSize.year) {
|
||
|
|
d.setMonth(0);
|
||
|
|
}
|
||
|
|
|
||
|
|
var carry = 0;
|
||
|
|
var v = Number.NaN;
|
||
|
|
var prev;
|
||
|
|
|
||
|
|
do {
|
||
|
|
|
||
|
|
prev = v;
|
||
|
|
v = d.getTime();
|
||
|
|
ticks.push(v);
|
||
|
|
|
||
|
|
if (unit == "month" || unit == "quarter") {
|
||
|
|
if (tickSize < 1) {
|
||
|
|
|
||
|
|
// a bit complicated - we'll divide the
|
||
|
|
// month/quarter up but we need to take
|
||
|
|
// care of fractions so we don't end up in
|
||
|
|
// the middle of a day
|
||
|
|
|
||
|
|
d.setDate(1);
|
||
|
|
var start = d.getTime();
|
||
|
|
d.setMonth(d.getMonth() +
|
||
|
|
(unit == "quarter" ? 3 : 1));
|
||
|
|
var end = d.getTime();
|
||
|
|
d.setTime(v + carry * timeUnitSize.hour + (end - start) * tickSize);
|
||
|
|
carry = d.getHours();
|
||
|
|
d.setHours(0);
|
||
|
|
} else {
|
||
|
|
d.setMonth(d.getMonth() +
|
||
|
|
tickSize * (unit == "quarter" ? 3 : 1));
|
||
|
|
}
|
||
|
|
} else if (unit == "year") {
|
||
|
|
d.setFullYear(d.getFullYear() + tickSize);
|
||
|
|
} else {
|
||
|
|
d.setTime(v + step);
|
||
|
|
}
|
||
|
|
} while (v < axis.max && v != prev);
|
||
|
|
|
||
|
|
return ticks;
|
||
|
|
};
|
||
|
|
|
||
|
|
axis.tickFormatter = function (v, axis) {
|
||
|
|
|
||
|
|
var d = dateGenerator(v, axis.options);
|
||
|
|
|
||
|
|
// first check global format
|
||
|
|
|
||
|
|
if (opts.timeformat != null) {
|
||
|
|
return formatDate(d, opts.timeformat, opts.monthNames, opts.dayNames);
|
||
|
|
}
|
||
|
|
|
||
|
|
// possibly use quarters if quarters are mentioned in
|
||
|
|
// any of these places
|
||
|
|
|
||
|
|
var useQuarters = (axis.options.tickSize &&
|
||
|
|
axis.options.tickSize[1] == "quarter") ||
|
||
|
|
(axis.options.minTickSize &&
|
||
|
|
axis.options.minTickSize[1] == "quarter");
|
||
|
|
|
||
|
|
var t = axis.tickSize[0] * timeUnitSize[axis.tickSize[1]];
|
||
|
|
var span = axis.max - axis.min;
|
||
|
|
var suffix = (opts.twelveHourClock) ? " %p" : "";
|
||
|
|
var hourCode = (opts.twelveHourClock) ? "%I" : "%H";
|
||
|
|
var fmt;
|
||
|
|
|
||
|
|
if (t < timeUnitSize.minute) {
|
||
|
|
fmt = hourCode + ":%M:%S" + suffix;
|
||
|
|
} else if (t < timeUnitSize.day) {
|
||
|
|
if (span < 2 * timeUnitSize.day) {
|
||
|
|
fmt = hourCode + ":%M" + suffix;
|
||
|
|
} else {
|
||
|
|
fmt = "%b %d " + hourCode + ":%M" + suffix;
|
||
|
|
}
|
||
|
|
} else if (t < timeUnitSize.month) {
|
||
|
|
fmt = "%b %d";
|
||
|
|
} else if ((useQuarters && t < timeUnitSize.quarter) ||
|
||
|
|
(!useQuarters && t < timeUnitSize.year)) {
|
||
|
|
if (span < timeUnitSize.year) {
|
||
|
|
fmt = "%b";
|
||
|
|
} else {
|
||
|
|
fmt = "%b %Y";
|
||
|
|
}
|
||
|
|
} else if (useQuarters && t < timeUnitSize.year) {
|
||
|
|
if (span < timeUnitSize.year) {
|
||
|
|
fmt = "Q%q";
|
||
|
|
} else {
|
||
|
|
fmt = "Q%q %Y";
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
fmt = "%Y";
|
||
|
|
}
|
||
|
|
|
||
|
|
var rt = formatDate(d, fmt, opts.monthNames, opts.dayNames);
|
||
|
|
|
||
|
|
return rt;
|
||
|
|
};
|
||
|
|
}
|
||
|
|
});
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
$.plot.plugins.push({
|
||
|
|
init: init,
|
||
|
|
options: options,
|
||
|
|
name: 'time',
|
||
|
|
version: '1.0'
|
||
|
|
});
|
||
|
|
|
||
|
|
// Time-axis support used to be in Flot core, which exposed the
|
||
|
|
// formatDate function on the plot object. Various plugins depend
|
||
|
|
// on the function, so we need to re-expose it here.
|
||
|
|
|
||
|
|
$.plot.formatDate = formatDate;
|
||
|
|
$.plot.dateGenerator = dateGenerator;
|
||
|
|
|
||
|
|
})(jQuery);
|