diff -r 058bb3dc685f -r 0b59724cb3f2 web/data/jquery.flot.js --- a/web/data/jquery.flot.js Mon Jan 04 18:40:30 2016 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,2119 +0,0 @@ -/* Javascript plotting library for jQuery, v. 0.6. - * - * Released under the MIT license by IOLA, December 2007. - * - */ - -// first an inline dependency, jquery.colorhelpers.js, we inline it here -// for convenience - -/* Plugin for jQuery for working with colors. - * - * Version 1.0. - * - * 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() work in-place instead of returning - * new objects. - */ -(function(){jQuery.color={};jQuery.color.make=function(E,D,B,C){var F={};F.r=E||0;F.g=D||0;F.b=B||0;F.a=C!=null?C:1;F.add=function(I,H){for(var G=0;G=1){return"rgb("+[F.r,F.g,F.b].join(",")+")"}else{return"rgba("+[F.r,F.g,F.b,F.a].join(",")+")"}};F.normalize=function(){function G(I,J,H){return JH?H:J)}F.r=G(0,parseInt(F.r),255);F.g=G(0,parseInt(F.g),255);F.b=G(0,parseInt(F.b),255);F.a=G(0,F.a,1);return F};F.clone=function(){return jQuery.color.make(F.r,F.b,F.g,F.a)};return F.normalize()};jQuery.color.extract=function(C,B){var D;do{D=C.css(B).toLowerCase();if(D!=""&&D!="transparent"){break}C=C.parent()}while(!jQuery.nodeName(C.get(0),"body"));if(D=="rgba(0, 0, 0, 0)"){D="transparent"}return jQuery.color.parse(D)};jQuery.color.parse=function(E){var D,B=jQuery.color.make;if(D=/rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(E)){return B(parseInt(D[1],10),parseInt(D[2],10),parseInt(D[3],10))}if(D=/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(E)){return B(parseInt(D[1],10),parseInt(D[2],10),parseInt(D[3],10),parseFloat(D[4]))}if(D=/rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(E)){return B(parseFloat(D[1])*2.55,parseFloat(D[2])*2.55,parseFloat(D[3])*2.55)}if(D=/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(E)){return B(parseFloat(D[1])*2.55,parseFloat(D[2])*2.55,parseFloat(D[3])*2.55,parseFloat(D[4]))}if(D=/#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(E)){return B(parseInt(D[1],16),parseInt(D[2],16),parseInt(D[3],16))}if(D=/#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(E)){return B(parseInt(D[1]+D[1],16),parseInt(D[2]+D[2],16),parseInt(D[3]+D[3],16))}var C=jQuery.trim(E).toLowerCase();if(C=="transparent"){return B(255,255,255,0)}else{D=A[C];return B(D[0],D[1],D[2])}};var A={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]}})(); - -// the actual Flot code -(function($) { - 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 - }, - xaxis: { - mode: null, // null or "time" - 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, - - // mode specific options - tickDecimals: null, // no. of decimals, null means auto - tickSize: null, // number or [number, "unit"] - minTickSize: null, // number or [number, "unit"] - monthNames: null, // list of names of months - timeformat: null, // format string to use - twelveHourClock: false // 12 or 24 time in time mode - }, - yaxis: { - autoscaleMargin: 0.02 - }, - x2axis: { - autoscaleMargin: null - }, - y2axis: { - autoscaleMargin: 0.02 - }, - series: { - points: { - show: false, - radius: 3, - lineWidth: 2, // in pixels - fill: true, - fillColor: "#ffffff" - }, - 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 - }, - bars: { - show: false, - lineWidth: 2, // in pixels - barWidth: 1, // in units of the x axis - fill: true, - fillColor: null, - align: "left", // or "center" - horizontal: false // when horizontal, left is now top - }, - shadowSize: 3 - }, - grid: { - show: true, - aboveData: false, - color: "#545454", // primary color used for outline and labels - backgroundColor: null, // null for transparent, else color - tickColor: "rgba(0,0,0,0.15)", // color used for the ticks - labelMargin: 5, // in pixels - borderWidth: 2, // in pixels - borderColor: null, // set if different from the grid color - 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 - }, - hooks: {} - }, - canvas = 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, - axes = { xaxis: {}, yaxis: {}, x2axis: {}, y2axis: {} }, - plotOffset = { left: 0, right: 0, top: 0, bottom: 0}, - canvasWidth = 0, canvasHeight = 0, - plotWidth = 0, plotHeight = 0, - hooks = { - processOptions: [], - processRawData: [], - processDatapoints: [], - draw: [], - bindEvents: [], - drawOverlay: [] - }, - plot = this; - - // public functions - plot.setData = setData; - plot.setupGrid = setupGrid; - plot.draw = draw; - plot.getPlaceholder = function() { return placeholder; }; - plot.getCanvas = function() { return canvas; }; - 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() { return axes; }; - plot.getOptions = function() { return options; }; - plot.highlight = highlight; - plot.unhighlight = unhighlight; - plot.triggerRedrawOverlay = triggerRedrawOverlay; - plot.pointOffset = function(point) { - return { left: parseInt(axisSpecToRealAxis(point, "xaxis").p2c(+point.x) + plotOffset.left), - top: parseInt(axisSpecToRealAxis(point, "yaxis").p2c(+point.y) + plotOffset.top) }; - }; - - - // public attributes - plot.hooks = hooks; - - // initialize - initPlugins(plot); - parseOptions(options_); - constructCanvas(); - 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() { - for (var i = 0; i < plugins.length; ++i) { - var p = plugins[i]; - p.init(plot); - if (p.options) - $.extend(true, options, p.options); - } - } - - function parseOptions(opts) { - $.extend(true, options, opts); - if (options.grid.borderColor == null) - options.grid.borderColor = options.grid.color; - // 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.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) - options.series.shadowSize = options.shadowSize; - - 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) { - s.data = d[i].data; // move the data instead of deep-copy - delete d[i].data; - - $.extend(true, s, d[i]); - - d[i].data = s.data; - } - else - s.data = d[i]; - res.push(s); - } - - return res; - } - - function axisSpecToRealAxis(obj, attr) { - var a = obj[attr]; - if (!a || a == 1) - return axes[attr]; - if (typeof a == "number") - return axes[attr.charAt(0) + a + attr.slice(1)]; - return a; // assume it's OK - } - - function fillInSeriesOptions() { - var i; - - // collect what we already got of colors - var neededColors = series.length, - usedColors = [], - assignedColors = []; - for (i = 0; i < series.length; ++i) { - var sc = series[i].color; - if (sc != null) { - --neededColors; - if (typeof sc == "number") - assignedColors.push(sc); - else - usedColors.push($.color.parse(series[i].color)); - } - } - - // we might need to generate more colors if higher indices - // are assigned - for (i = 0; i < assignedColors.length; ++i) { - neededColors = Math.max(neededColors, assignedColors[i] + 1); - } - - // produce colors as needed - var colors = [], variation = 0; - i = 0; - while (colors.length < neededColors) { - var c; - if (options.colors.length == i) // check degenerate case - c = $.color.make(100, 100, 100); - else - c = $.color.parse(options.colors[i]); - - // vary color if needed - var sign = variation % 2 == 1 ? -1 : 1; - c.scale('rgb', 1 + sign * Math.ceil(variation / 2) * 0.2) - - // FIXME: if we're getting to close to something else, - // we should probably skip this one - colors.push(c); - - ++i; - if (i >= options.colors.length) { - i = 0; - ++variation; - } - } - - // fill in the options - 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].show) { - show = false; - break; - } - if (show) - s.lines.show = true; - } - - // setup axes - s.xaxis = axisSpecToRealAxis(s, "xaxis"); - s.yaxis = axisSpecToRealAxis(s, "yaxis"); - } - } - - function processData() { - var topSentry = Number.POSITIVE_INFINITY, - bottomSentry = Number.NEGATIVE_INFINITY, - i, j, k, m, length, - s, points, ps, x, y, axis, val, f, p; - - for (axis in axes) { - axes[axis].datamin = topSentry; - axes[axis].datamax = bottomSentry; - axes[axis].used = false; - } - - function updateAxis(axis, min, max) { - if (min < axis.datamin) - axis.datamin = min; - if (max > axis.datamax) - axis.datamax = max; - } - - 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]; - - var 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) - format.push({ y: true, number: true, required: false, defaultValue: 0 }); - - s.datapoints.format = format; - } - - if (s.datapoints.pointsize != null) - continue; // already filled in - - if (s.datapoints.pointsize == null) - s.datapoints.pointsize = format.length; - - ps = s.datapoints.pointsize; - points = s.datapoints.points; - - 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; - } - - 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.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; - - 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) - 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 = s.bars.align == "left" ? 0 : -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); - } - - for (axis in axes) { - if (axes[axis].datamin == topSentry) - axes[axis].datamin = null; - if (axes[axis].datamax == bottomSentry) - axes[axis].datamax = null; - } - } - - function constructCanvas() { - function makeCanvas(width, height) { - var c = document.createElement('canvas'); - c.width = width; - c.height = height; - if ($.browser.msie) // excanvas hack - c = window.G_vmlCanvasManager.initElement(c); - return c; - } - - canvasWidth = placeholder.width(); - canvasHeight = placeholder.height(); - placeholder.html(""); // clear placeholder - if (placeholder.css("position") == 'static') - placeholder.css("position", "relative"); // for positioning labels and overlay - - if (canvasWidth <= 0 || canvasHeight <= 0) - throw "Invalid dimensions for plot, width = " + canvasWidth + ", height = " + canvasHeight; - - if ($.browser.msie) // excanvas hack - window.G_vmlCanvasManager.init_(document); // make sure everything is setup - - // the canvas - canvas = $(makeCanvas(canvasWidth, canvasHeight)).appendTo(placeholder).get(0); - ctx = canvas.getContext("2d"); - - // overlay canvas for interactive features - overlay = $(makeCanvas(canvasWidth, canvasHeight)).css({ position: 'absolute', left: 0, top: 0 }).appendTo(placeholder).get(0); - octx = overlay.getContext("2d"); - octx.stroke(); - } - - function bindEvents() { - // we include the canvas in the event holder too, because IE 7 - // sometimes has trouble with the stacking order - eventHolder = $([overlay, canvas]); - - // bind events - if (options.grid.hoverable) - eventHolder.mousemove(onMouseMove); - - if (options.grid.clickable) - eventHolder.click(onClick); - - executeHooks(hooks.bindEvents, [eventHolder]); - } - - function setupGrid() { - function setTransformationHelpers(axis, o) { - function identity(x) { return x; } - - var s, m, t = o.transform || identity, - it = o.inverseTransform; - - // add transformation helpers - if (axis == axes.xaxis || axis == axes.x2axis) { - // precompute how much the axis is scaling a point - // in canvas space - s = axis.scale = plotWidth / (t(axis.max) - t(axis.min)); - m = 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); }; - } - else { - s = axis.scale = plotHeight / (t(axis.max) - t(axis.min)); - m = t(axis.max); - - if (t == identity) - axis.p2c = function (p) { return (m - p) * s; }; - else - axis.p2c = function (p) { return (m - t(p)) * s; }; - if (!it) - axis.c2p = function (c) { return m - c / s; }; - else - axis.c2p = function (c) { return it(m - c / s); }; - } - } - - function measureLabels(axis, axisOptions) { - var i, labels = [], l; - - axis.labelWidth = axisOptions.labelWidth; - axis.labelHeight = axisOptions.labelHeight; - - if (axis == axes.xaxis || axis == axes.x2axis) { - // to avoid measuring the widths of the labels, we - // construct fixed-size boxes and put the labels inside - // them, we don't need the exact figures and the - // fixed-size box content is easy to center - if (axis.labelWidth == null) - axis.labelWidth = canvasWidth / (axis.ticks.length > 0 ? axis.ticks.length : 1); - - // measure x label heights - if (axis.labelHeight == null) { - labels = []; - for (i = 0; i < axis.ticks.length; ++i) { - l = axis.ticks[i].label; - if (l) - labels.push('
' + l + '
'); - } - - if (labels.length > 0) { - var dummyDiv = $('
' - + labels.join("") + '
').appendTo(placeholder); - axis.labelHeight = dummyDiv.height(); - dummyDiv.remove(); - } - } - } - else if (axis.labelWidth == null || axis.labelHeight == null) { - // calculate y label dimensions - for (i = 0; i < axis.ticks.length; ++i) { - l = axis.ticks[i].label; - if (l) - labels.push('
' + l + '
'); - } - - if (labels.length > 0) { - var dummyDiv = $('
' - + labels.join("") + '
').appendTo(placeholder); - if (axis.labelWidth == null) - axis.labelWidth = dummyDiv.width(); - if (axis.labelHeight == null) - axis.labelHeight = dummyDiv.find("div").height(); - dummyDiv.remove(); - } - - } - - if (axis.labelWidth == null) - axis.labelWidth = 0; - if (axis.labelHeight == null) - axis.labelHeight = 0; - } - - function setGridSpacing() { - // get the most space needed around the grid for things - // that may stick out - var maxOutset = options.grid.borderWidth; - for (i = 0; i < series.length; ++i) - maxOutset = Math.max(maxOutset, 2 * (series[i].points.radius + series[i].points.lineWidth/2)); - - plotOffset.left = plotOffset.right = plotOffset.top = plotOffset.bottom = maxOutset; - - var margin = options.grid.labelMargin + options.grid.borderWidth; - - if (axes.xaxis.labelHeight > 0) - plotOffset.bottom = Math.max(maxOutset, axes.xaxis.labelHeight + margin); - if (axes.yaxis.labelWidth > 0) - plotOffset.left = Math.max(maxOutset, axes.yaxis.labelWidth + margin); - if (axes.x2axis.labelHeight > 0) - plotOffset.top = Math.max(maxOutset, axes.x2axis.labelHeight + margin); - if (axes.y2axis.labelWidth > 0) - plotOffset.right = Math.max(maxOutset, axes.y2axis.labelWidth + margin); - - plotWidth = canvasWidth - plotOffset.left - plotOffset.right; - plotHeight = canvasHeight - plotOffset.bottom - plotOffset.top; - } - - var axis; - for (axis in axes) - setRange(axes[axis], options[axis]); - - if (options.grid.show) { - for (axis in axes) { - prepareTickGeneration(axes[axis], options[axis]); - setTicks(axes[axis], options[axis]); - measureLabels(axes[axis], options[axis]); - } - - setGridSpacing(); - } - else { - plotOffset.left = plotOffset.right = plotOffset.top = plotOffset.bottom = 0; - plotWidth = canvasWidth; - plotHeight = canvasHeight; - } - - for (axis in axes) - setTransformationHelpers(axes[axis], options[axis]); - - if (options.grid.show) - insertLabels(); - - insertLegend(); - } - - function setRange(axis, axisOptions) { - var min = +(axisOptions.min != null ? axisOptions.min : axis.datamin), - max = +(axisOptions.max != null ? axisOptions.max : axis.datamax), - delta = max - min; - - if (delta == 0.0) { - // degenerate case - var widen = max == 0 ? 1 : 0.01; - - if (axisOptions.min == null) - min -= widen; - // alway widen max if we couldn't widen min to ensure we - // don't fall into min == max which doesn't work - if (axisOptions.max == null || axisOptions.min != null) - max += widen; - } - else { - // consider autoscaling - var margin = axisOptions.autoscaleMargin; - if (margin != null) { - if (axisOptions.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 (axisOptions.max == null) { - max += delta * margin; - if (max > 0 && axis.datamax != null && axis.datamax <= 0) - max = 0; - } - } - } - axis.min = min; - axis.max = max; - } - - function prepareTickGeneration(axis, axisOptions) { - // estimate number of ticks - var noTicks; - if (typeof axisOptions.ticks == "number" && axisOptions.ticks > 0) - noTicks = axisOptions.ticks; - else if (axis == axes.xaxis || axis == axes.x2axis) - // heuristic based on the model a*sqrt(x) fitted to - // some reasonable data points - noTicks = 0.3 * Math.sqrt(canvasWidth); - else - noTicks = 0.3 * Math.sqrt(canvasHeight); - - var delta = (axis.max - axis.min) / noTicks, - size, generator, unit, formatter, i, magn, norm; - - if (axisOptions.mode == "time") { - // pretty handling of time - - // 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, - "year": 365.2425 * 24 * 60 * 60 * 1000 - }; - - - // the allowed tick sizes, after 1 year we use - // an integer algorithm - var spec = [ - [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"], [3, "month"], [6, "month"], - [1, "year"] - ]; - - var minSize = 0; - if (axisOptions.minTickSize != null) { - if (typeof axisOptions.tickSize == "number") - minSize = axisOptions.tickSize; - else - minSize = axisOptions.minTickSize[0] * timeUnitSize[axisOptions.minTickSize[1]]; - } - - for (i = 0; i < spec.length - 1; ++i) - if (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; - size = spec[i][0]; - unit = spec[i][1]; - - // special-case the possibility of several years - if (unit == "year") { - magn = Math.pow(10, Math.floor(Math.log(delta / timeUnitSize.year) / Math.LN10)); - norm = (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; - } - - if (axisOptions.tickSize) { - size = axisOptions.tickSize[0]; - unit = axisOptions.tickSize[1]; - } - - generator = function(axis) { - var ticks = [], - tickSize = axis.tickSize[0], unit = axis.tickSize[1], - d = new Date(axis.min); - - var step = tickSize * timeUnitSize[unit]; - - if (unit == "second") - d.setUTCSeconds(floorInBase(d.getUTCSeconds(), tickSize)); - if (unit == "minute") - d.setUTCMinutes(floorInBase(d.getUTCMinutes(), tickSize)); - if (unit == "hour") - d.setUTCHours(floorInBase(d.getUTCHours(), tickSize)); - if (unit == "month") - d.setUTCMonth(floorInBase(d.getUTCMonth(), tickSize)); - if (unit == "year") - d.setUTCFullYear(floorInBase(d.getUTCFullYear(), tickSize)); - - // reset smaller components - d.setUTCMilliseconds(0); - if (step >= timeUnitSize.minute) - d.setUTCSeconds(0); - if (step >= timeUnitSize.hour) - d.setUTCMinutes(0); - if (step >= timeUnitSize.day) - d.setUTCHours(0); - if (step >= timeUnitSize.day * 4) - d.setUTCDate(1); - if (step >= timeUnitSize.year) - d.setUTCMonth(0); - - - var carry = 0, v = Number.NaN, prev; - do { - prev = v; - v = d.getTime(); - ticks.push({ v: v, label: axis.tickFormatter(v, axis) }); - if (unit == "month") { - if (tickSize < 1) { - // a bit complicated - we'll divide the month - // up but we need to take care of fractions - // so we don't end up in the middle of a day - d.setUTCDate(1); - var start = d.getTime(); - d.setUTCMonth(d.getUTCMonth() + 1); - var end = d.getTime(); - d.setTime(v + carry * timeUnitSize.hour + (end - start) * tickSize); - carry = d.getUTCHours(); - d.setUTCHours(0); - } - else - d.setUTCMonth(d.getUTCMonth() + tickSize); - } - else if (unit == "year") { - d.setUTCFullYear(d.getUTCFullYear() + tickSize); - } - else - d.setTime(v + step); - } while (v < axis.max && v != prev); - - return ticks; - }; - - formatter = function (v, axis) { - var d = new Date(v); - - // first check global format - if (axisOptions.timeformat != null) - return $.plot.formatDate(d, axisOptions.timeformat, axisOptions.monthNames); - - var t = axis.tickSize[0] * timeUnitSize[axis.tickSize[1]]; - var span = axis.max - axis.min; - var suffix = (axisOptions.twelveHourClock) ? " %p" : ""; - - if (t < timeUnitSize.minute) - fmt = "%h:%M:%S" + suffix; - else if (t < timeUnitSize.day) { - if (span < 2 * timeUnitSize.day) - fmt = "%h:%M" + suffix; - else - fmt = "%b %d %h:%M" + suffix; - } - else if (t < timeUnitSize.month) - fmt = "%b %d"; - else if (t < timeUnitSize.year) { - if (span < timeUnitSize.year) - fmt = "%b"; - else - fmt = "%b %y"; - } - else - fmt = "%y"; - - return $.plot.formatDate(d, fmt, axisOptions.monthNames); - }; - } - else { - // pretty rounding of base-10 numbers - var maxDec = axisOptions.tickDecimals; - var dec = -Math.floor(Math.log(delta) / Math.LN10); - if (maxDec != null && dec > maxDec) - dec = maxDec; - - magn = Math.pow(10, -dec); - norm = delta / magn; // norm is between 1.0 and 10.0 - - if (norm < 1.5) - size = 1; - else if (norm < 3) { - size = 2; - // special case for 2.5, requires an extra decimal - if (norm > 2.25 && (maxDec == null || dec + 1 <= maxDec)) { - size = 2.5; - ++dec; - } - } - else if (norm < 7.5) - size = 5; - else - size = 10; - - size *= magn; - - if (axisOptions.minTickSize != null && size < axisOptions.minTickSize) - size = axisOptions.minTickSize; - - if (axisOptions.tickSize != null) - size = axisOptions.tickSize; - - axis.tickDecimals = Math.max(0, (maxDec != null) ? maxDec : dec); - - generator = function (axis) { - var ticks = []; - - // spew out all possible ticks - var start = floorInBase(axis.min, axis.tickSize), - i = 0, v = Number.NaN, prev; - do { - prev = v; - v = start + i * axis.tickSize; - ticks.push({ v: v, label: axis.tickFormatter(v, axis) }); - ++i; - } while (v < axis.max && v != prev); - return ticks; - }; - - formatter = function (v, axis) { - return v.toFixed(axis.tickDecimals); - }; - } - - axis.tickSize = unit ? [size, unit] : size; - axis.tickGenerator = generator; - if ($.isFunction(axisOptions.tickFormatter)) - axis.tickFormatter = function (v, axis) { return "" + axisOptions.tickFormatter(v, axis); }; - else - axis.tickFormatter = formatter; - } - - function setTicks(axis, axisOptions) { - axis.ticks = []; - - if (!axis.used) - return; - - if (axisOptions.ticks == null) - axis.ticks = axis.tickGenerator(axis); - else if (typeof axisOptions.ticks == "number") { - if (axisOptions.ticks > 0) - axis.ticks = axis.tickGenerator(axis); - } - else if (axisOptions.ticks) { - var ticks = axisOptions.ticks; - - if ($.isFunction(ticks)) - // generate the ticks - ticks = ticks({ min: axis.min, max: axis.max }); - - // clean up the user-supplied ticks, copy them over - var i, v; - 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); - axis.ticks[i] = { v: v, label: label }; - } - } - - if (axisOptions.autoscaleMargin != null && axis.ticks.length > 0) { - // snap to ticks - if (axisOptions.min == null) - axis.min = Math.min(axis.min, axis.ticks[0].v); - if (axisOptions.max == null && axis.ticks.length > 1) - axis.max = Math.max(axis.max, axis.ticks[axis.ticks.length - 1].v); - } - } - - function draw() { - ctx.clearRect(0, 0, canvasWidth, canvasHeight); - - var grid = options.grid; - - if (grid.show && !grid.aboveData) - drawGrid(); - - for (var i = 0; i < series.length; ++i) - drawSeries(series[i]); - - executeHooks(hooks.draw, [ctx]); - - if (grid.show && grid.aboveData) - drawGrid(); - } - - function extractRange(ranges, coord) { - var firstAxis = coord + "axis", - secondaryAxis = coord + "2axis", - axis, from, to, reverse; - - if (ranges[firstAxis]) { - axis = axes[firstAxis]; - from = ranges[firstAxis].from; - to = ranges[firstAxis].to; - } - else if (ranges[secondaryAxis]) { - axis = axes[secondaryAxis]; - from = ranges[secondaryAxis].from; - to = ranges[secondaryAxis].to; - } - else { - // backwards-compat stuff - to be removed in future - axis = axes[firstAxis]; - from = ranges[coord + "1"]; - to = ranges[coord + "2"]; - } - - // auto-reverse as an added bonus - if (from != null && to != null && from > to) - return { from: to, to: from, axis: axis }; - - return { from: from, to: to, axis: axis }; - } - - function drawGrid() { - var i; - - ctx.save(); - ctx.translate(plotOffset.left, plotOffset.top); - - // draw background, if any - if (options.grid.backgroundColor) { - ctx.fillStyle = getColorOrGradient(options.grid.backgroundColor, plotHeight, 0, "rgba(255, 255, 255, 0)"); - ctx.fillRect(0, 0, plotWidth, plotHeight); - } - - // draw markings - var markings = options.grid.markings; - if (markings) { - if ($.isFunction(markings)) - // xmin etc. are backwards-compatible, to be removed in future - markings = markings({ xmin: axes.xaxis.min, xmax: axes.xaxis.max, ymin: axes.yaxis.min, ymax: axes.yaxis.max, xaxis: axes.xaxis, yaxis: axes.yaxis, x2axis: axes.x2axis, y2axis: axes.y2axis }); - - 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); - - if (xrange.from == xrange.to && yrange.from == yrange.to) - continue; - - // then draw - xrange.from = xrange.axis.p2c(xrange.from); - xrange.to = xrange.axis.p2c(xrange.to); - yrange.from = yrange.axis.p2c(yrange.from); - yrange.to = yrange.axis.p2c(yrange.to); - - if (xrange.from == xrange.to || yrange.from == yrange.to) { - // draw line - ctx.beginPath(); - ctx.strokeStyle = m.color || options.grid.markingsColor; - ctx.lineWidth = m.lineWidth || options.grid.markingsLineWidth; - //ctx.moveTo(Math.floor(xrange.from), yrange.from); - //ctx.lineTo(Math.floor(xrange.to), yrange.to); - ctx.moveTo(xrange.from, yrange.from); - ctx.lineTo(xrange.to, yrange.to); - ctx.stroke(); - } - else { - // fill area - ctx.fillStyle = m.color || options.grid.markingsColor; - ctx.fillRect(xrange.from, yrange.to, - xrange.to - xrange.from, - yrange.from - yrange.to); - } - } - } - - // draw the inner grid - ctx.lineWidth = 1; - ctx.strokeStyle = options.grid.tickColor; - ctx.beginPath(); - var v, axis = axes.xaxis; - for (i = 0; i < axis.ticks.length; ++i) { - v = axis.ticks[i].v; - if (v <= axis.min || v >= axes.xaxis.max) - continue; // skip those lying on the axes - - ctx.moveTo(Math.floor(axis.p2c(v)) + ctx.lineWidth/2, 0); - ctx.lineTo(Math.floor(axis.p2c(v)) + ctx.lineWidth/2, plotHeight); - } - - axis = axes.yaxis; - for (i = 0; i < axis.ticks.length; ++i) { - v = axis.ticks[i].v; - if (v <= axis.min || v >= axis.max) - continue; - - ctx.moveTo(0, Math.floor(axis.p2c(v)) + ctx.lineWidth/2); - ctx.lineTo(plotWidth, Math.floor(axis.p2c(v)) + ctx.lineWidth/2); - } - - axis = axes.x2axis; - for (i = 0; i < axis.ticks.length; ++i) { - v = axis.ticks[i].v; - if (v <= axis.min || v >= axis.max) - continue; - - ctx.moveTo(Math.floor(axis.p2c(v)) + ctx.lineWidth/2, -5); - ctx.lineTo(Math.floor(axis.p2c(v)) + ctx.lineWidth/2, 5); - } - - axis = axes.y2axis; - for (i = 0; i < axis.ticks.length; ++i) { - v = axis.ticks[i].v; - if (v <= axis.min || v >= axis.max) - continue; - - ctx.moveTo(plotWidth-5, Math.floor(axis.p2c(v)) + ctx.lineWidth/2); - ctx.lineTo(plotWidth+5, Math.floor(axis.p2c(v)) + ctx.lineWidth/2); - } - - ctx.stroke(); - - if (options.grid.borderWidth) { - // draw border - var bw = options.grid.borderWidth; - ctx.lineWidth = bw; - ctx.strokeStyle = options.grid.borderColor; - ctx.strokeRect(-bw/2, -bw/2, plotWidth + bw, plotHeight + bw); - } - - ctx.restore(); - } - - function insertLabels() { - placeholder.find(".tickLabels").remove(); - - var html = ['
']; - - function addLabels(axis, labelGenerator) { - for (var i = 0; i < axis.ticks.length; ++i) { - var tick = axis.ticks[i]; - if (!tick.label || tick.v < axis.min || tick.v > axis.max) - continue; - html.push(labelGenerator(tick, axis)); - } - } - - var margin = options.grid.labelMargin + options.grid.borderWidth; - - addLabels(axes.xaxis, function (tick, axis) { - return '
' + tick.label + "
"; - }); - - - addLabels(axes.yaxis, function (tick, axis) { - return '
' + tick.label + "
"; - }); - - addLabels(axes.x2axis, function (tick, axis) { - return '
' + tick.label + "
"; - }); - - addLabels(axes.y2axis, function (tick, axis) { - return '
' + tick.label + "
"; - }); - - html.push('
'); - - placeholder.append(html.join("")); - } - - 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), - top, lastX = 0, areaOpen = false; - - 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 (areaOpen && x1 != null && x2 == null) { - // close area - ctx.lineTo(axisx.p2c(lastX), axisy.p2c(bottom)); - ctx.fill(); - areaOpen = false; - 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)); - lastX = x2; - 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)); - lastX = x2; - continue; - } - - // else it's a bit more complicated, there might - // be two rectangles and two triangles we need to fill - // in; to find these keep track of the current x values - var x1old = x1, x2old = x2; - - // and clip the y values, without shortcutting - - // 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) { - if (y1 <= axisy.min) - top = axisy.min; - else - top = axisy.max; - - ctx.lineTo(axisx.p2c(x1old), axisy.p2c(top)); - ctx.lineTo(axisx.p2c(x1), axisy.p2c(top)); - } - - // fill the triangles - 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) { - if (y2 <= axisy.min) - top = axisy.min; - else - top = axisy.max; - - ctx.lineTo(axisx.p2c(x2), axisy.p2c(top)); - ctx.lineTo(axisx.p2c(x2old), axisy.p2c(top)); - } - - lastX = Math.max(x2, x2old); - } - - if (areaOpen) { - ctx.lineTo(axisx.p2c(lastX), axisy.p2c(bottom)); - ctx.fill(); - } - } - - 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, circumference, axisx, axisy) { - 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(); - ctx.arc(axisx.p2c(x), axisy.p2c(y) + offset, radius, 0, circumference, false); - if (fillStyle) { - ctx.fillStyle = fillStyle; - ctx.fill(); - } - ctx.stroke(); - } - } - - ctx.save(); - ctx.translate(plotOffset.left, plotOffset.top); - - var lw = series.lines.lineWidth, - sw = series.shadowSize, - radius = series.points.radius; - 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, Math.PI, - series.xaxis, series.yaxis); - - ctx.strokeStyle = "rgba(0,0,0,0.2)"; - plotPoints(series.datapoints, radius, null, w/2, Math.PI, - series.xaxis, series.yaxis); - } - - ctx.lineWidth = lw; - ctx.strokeStyle = series.color; - plotPoints(series.datapoints, radius, - getFillStyle(series.points, series.color), 0, 2 * Math.PI, - series.xaxis, series.yaxis); - ctx.restore(); - } - - function drawBar(x, y, b, barLeft, barRight, offset, fillStyleCallback, axisx, axisy, c, horizontal) { - var left, right, bottom, top, - drawLeft, drawRight, drawTop, drawBottom, - tmp; - - 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.beginPath(); - c.moveTo(left, bottom); - c.lineTo(left, top); - c.lineTo(right, top); - c.lineTo(right, bottom); - c.fillStyle = fillStyleCallback(bottom, top); - c.fill(); - } - - // draw outline - if (drawLeft || drawRight || drawTop || drawBottom) { - c.beginPath(); - - // FIXME: inline moveTo is buggy with excanvas - c.moveTo(left, bottom + offset); - if (drawLeft) - c.lineTo(left, top + offset); - else - c.moveTo(left, top + offset); - if (drawTop) - c.lineTo(right, top + offset); - else - c.moveTo(right, top + offset); - if (drawRight) - c.lineTo(right, bottom + offset); - else - c.moveTo(right, bottom + offset); - if (drawBottom) - c.lineTo(left, bottom + offset); - else - c.moveTo(left, bottom + offset); - c.stroke(); - } - } - - function drawSeriesBars(series) { - function plotBars(datapoints, barLeft, barRight, offset, 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, offset, fillStyleCallback, axisx, axisy, ctx, series.bars.horizontal); - } - } - - 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 = series.bars.align == "left" ? 0 : -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, 0, 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() { - placeholder.find(".legend").remove(); - - if (!options.legend.show) - return; - - var fragments = [], rowStarted = false, - lf = options.legend.labelFormatter, s, label; - for (i = 0; i < series.length; ++i) { - s = series[i]; - label = s.label; - if (!label) - continue; - - if (i % options.legend.noColumns == 0) { - if (rowStarted) - fragments.push(''); - fragments.push(''); - rowStarted = true; - } - - if (lf) - label = lf(label, s); - - fragments.push( - '
' + - '' + label + ''); - } - if (rowStarted) - fragments.push(''); - - if (fragments.length == 0) - return; - - var table = '' + fragments.join("") + '
'; - 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 = $('
' + table.replace('style="', 'style="position:absolute;' + pos +';') + '
').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(); - $('
').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; - - for (i = 0; i < series.length; ++i) { - if (!seriesFilter(series[i])) - continue; - - var s = series[i], - axisx = s.xaxis, - axisy = s.yaxis, - points = s.datapoints.points, - ps = s.datapoints.pointsize, - mx = axisx.c2p(mouseX), // precompute some stuff to make the loop faster - my = axisy.c2p(mouseY), - maxx = maxDistance / axisx.scale, - maxy = maxDistance / axisy.scale; - - 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 = s.bars.align == "left" ? 0 : -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 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(), - pos = { pageX: event.pageX, pageY: event.pageY }, - canvasX = event.pageX - offset.left - plotOffset.left, - canvasY = event.pageY - offset.top - plotOffset.top; - - if (axes.xaxis.used) - pos.x = axes.xaxis.c2p(canvasX); - if (axes.yaxis.used) - pos.y = axes.yaxis.c2p(canvasY); - if (axes.x2axis.used) - pos.x2 = axes.x2axis.c2p(canvasX); - if (axes.y2axis.used) - pos.y2 = axes.y2axis.c2p(canvasY); - - 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); - item.pageY = parseInt(item.series.yaxis.p2c(item.datapoint[1]) + offset.top + plotOffset.top); - } - - 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 == item.datapoint)) - unhighlight(h.series, h.point); - } - - if (item) - highlight(item.series, item.datapoint, eventname); - } - - placeholder.trigger(eventname, [ pos, item ]); - } - - function triggerRedrawOverlay() { - if (!redrawTimeout) - redrawTimeout = setTimeout(drawOverlay, 30); - } - - function drawOverlay() { - redrawTimeout = null; - - // draw highlights - octx.save(); - octx.clearRect(0, 0, canvasWidth, canvasHeight); - 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") - point = s.data[point]; - - 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(); - } - - if (typeof s == "number") - s = series[s]; - - if (typeof point == "number") - point = s.data[point]; - - 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; - - 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 = $.color.parse(series.color).scale('a', 0.5).toString(); - var radius = 1.5 * pointRadius; - octx.beginPath(); - octx.arc(axisx.p2c(x), axisy.p2c(y), radius, 0, 2 * Math.PI, false); - octx.stroke(); - } - - function drawBarHighlight(series, point) { - octx.lineWidth = series.bars.lineWidth; - octx.strokeStyle = $.color.parse(series.color).scale('a', 0.5).toString(); - var fillStyle = $.color.parse(series.color).scale('a', 0.5).toString(); - var barLeft = series.bars.align == "left" ? 0 : -series.bars.barWidth/2; - drawBar(point[0], point[1], point[2] || 0, barLeft, barLeft + series.bars.barWidth, - 0, function () { return fillStyle; }, series.xaxis, series.yaxis, octx, series.bars.horizontal); - } - - 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") { - c = $.color.parse(defaultColor).scale('rgb', c.brightness); - c.a *= c.opacity; - c = c.toString(); - } - gradient.addColorStop(i / (l - 1), c); - } - - return gradient; - } - } - } - - $.plot = function(placeholder, data, options) { - var plot = new Plot($(placeholder), data, options, $.plot.plugins); - /*var t0 = new Date(); - var t1 = new Date(); - var tstr = "time used (msecs): " + (t1.getTime() - t0.getTime()) - if (window.console) - console.log(tstr); - else - alert(tstr);*/ - return plot; - }; - - $.plot.plugins = []; - - // returns a string with the date d formatted according to fmt - $.plot.formatDate = function(d, fmt, monthNames) { - var leftPad = function(n) { - n = "" + n; - return n.length == 1 ? "0" + n : n; - }; - - var r = []; - var escape = false; - var hours = d.getUTCHours(); - var isAM = hours < 12; - if (monthNames == null) - monthNames = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]; - - if (fmt.search(/%p|%P/) != -1) { - if (hours > 12) { - hours = hours - 12; - } else if (hours == 0) { - hours = 12; - } - } - for (var i = 0; i < fmt.length; ++i) { - var c = fmt.charAt(i); - - if (escape) { - switch (c) { - case 'h': c = "" + hours; break; - case 'H': c = leftPad(hours); break; - case 'M': c = leftPad(d.getUTCMinutes()); break; - case 'S': c = leftPad(d.getUTCSeconds()); break; - case 'd': c = "" + d.getUTCDate(); break; - case 'm': c = "" + (d.getUTCMonth() + 1); break; - case 'y': c = "" + d.getUTCFullYear(); break; - case 'b': c = "" + monthNames[d.getUTCMonth()]; break; - case 'p': c = (isAM) ? ("" + "am") : ("" + "pm"); break; - case 'P': c = (isAM) ? ("" + "AM") : ("" + "PM"); break; - } - r.push(c); - escape = false; - } - else { - if (c == "%") - escape = true; - else - r.push(c); - } - } - return r.join(""); - }; - - // round to nearby lower multiple of base - function floorInBase(n, base) { - return base * Math.floor(n / base); - } - -})(jQuery);