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authorYves Fischer <yvesf-git@xapek.org>2011-10-23 21:14:40 +0200
committerYves Fischer <yvesf-git@xapek.org>2011-10-30 11:33:54 +0100
commit770ba5201f5c60b2bb36602ff9d359f641e33125 (patch)
tree2200757f04efbc281c4b3714bfe2e4fe911193b6 /schall/static/RGraph/libraries/RGraph.scatter.js
parent77f5e686612898974e13f2a5df57c20e4e529363 (diff)
downloadmini-octopus-770ba5201f5c60b2bb36602ff9d359f641e33125.tar.gz
mini-octopus-770ba5201f5c60b2bb36602ff9d359f641e33125.zip
Charting with flask, rgraph and custom "timeseries database"
Diffstat (limited to 'schall/static/RGraph/libraries/RGraph.scatter.js')
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+ /**
+ * o------------------------------------------------------------------------------o
+ * | This file is part of the RGraph package - you can learn more at: |
+ * | |
+ * | http://www.rgraph.net |
+ * | |
+ * | This package is licensed under the RGraph license. For all kinds of business |
+ * | purposes there is a small one-time licensing fee to pay and for non |
+ * | commercial purposes it is free to use. You can read the full license here: |
+ * | |
+ * | http://www.rgraph.net/LICENSE.txt |
+ * o------------------------------------------------------------------------------o
+ */
+
+ if (typeof(RGraph) == 'undefined') RGraph = {};
+
+ /**
+ * The scatter graph constructor
+ *
+ * @param object canvas The cxanvas object
+ * @param array data The chart data
+ */
+ RGraph.Scatter = function (id, data)
+ {
+ // Get the canvas and context objects
+ this.id = id;
+ this.canvas = document.getElementById(id);
+ this.canvas.__object__ = this;
+ this.context = this.canvas.getContext ? this.canvas.getContext("2d") : null;
+ this.max = 0;
+ this.coords = [];
+ this.data = [];
+ this.type = 'scatter';
+ this.isRGraph = true;
+
+
+ /**
+ * Compatibility with older browsers
+ */
+ RGraph.OldBrowserCompat(this.context);
+
+
+ // Various config properties
+ this.properties = {
+ 'chart.background.barcolor1': 'rgba(0,0,0,0)',
+ 'chart.background.barcolor2': 'rgba(0,0,0,0)',
+ 'chart.background.grid': true,
+ 'chart.background.grid.width': 1,
+ 'chart.background.grid.color': '#ddd',
+ 'chart.background.grid.hsize': 20,
+ 'chart.background.grid.vsize': 20,
+ 'chart.background.hbars': null,
+ 'chart.background.vbars': null,
+ 'chart.background.grid.vlines': true,
+ 'chart.background.grid.hlines': true,
+ 'chart.background.grid.border': true,
+ 'chart.background.grid.autofit':true,
+ 'chart.background.grid.autofit.numhlines': 5,
+ 'chart.background.grid.autofit.numvlines': 20,
+ 'chart.text.size': 10,
+ 'chart.text.angle': 0,
+ 'chart.text.color': 'black',
+ 'chart.text.font': 'Verdana',
+ 'chart.tooltips.effect': 'fade',
+ 'chart.tooltips.hotspot': 3,
+ 'chart.tooltips.css.class': 'RGraph_tooltip',
+ 'chart.tooltips.highlight': true,
+ 'chart.units.pre': '',
+ 'chart.units.post': '',
+ 'chart.numyticks': 10,
+ 'chart.tickmarks': 'cross',
+ 'chart.ticksize': 5,
+ 'chart.xticks': true,
+ 'chart.xaxis': true,
+ 'chart.gutter.left': 25,
+ 'chart.gutter.right': 25,
+ 'chart.gutter.top': 25,
+ 'chart.gutter.bottom': 25,
+ 'chart.xmin': 0,
+ 'chart.xmax': 0,
+ 'chart.ymax': null,
+ 'chart.ymin': null,
+ 'chart.scale.decimals': null,
+ 'chart.scale.point': '.',
+ 'chart.scale.thousand': ',',
+ 'chart.title': '',
+ 'chart.title.background': null,
+ 'chart.title.hpos': null,
+ 'chart.title.vpos': null,
+ 'chart.title.bold': true,
+ 'chart.title.font': null,
+ 'chart.title.xaxis': '',
+ 'chart.title.xaxis.bold': true,
+ 'chart.title.xaxis.size': null,
+ 'chart.title.xaxis.font': null,
+ 'chart.title.yaxis': '',
+ 'chart.title.yaxis.bold': true,
+ 'chart.title.yaxis.size': null,
+ 'chart.title.yaxis.font': null,
+ 'chart.title.xaxis.pos': null,
+ 'chart.title.yaxis.pos': null,
+ 'chart.labels': [],
+ 'chart.labels.ingraph': null,
+ 'chart.labels.above': false,
+ 'chart.labels.above.size': 8,
+ 'chart.labels.above.decimals': 0,
+ 'chart.ylabels': true,
+ 'chart.ylabels.count': 5,
+ 'chart.ylabels.invert': false,
+ 'chart.ylabels.specific': null,
+ 'chart.ylabels.inside': false,
+ 'chart.contextmenu': null,
+ 'chart.defaultcolor': 'black',
+ 'chart.xaxispos': 'bottom',
+ 'chart.yaxispos': 'left',
+ 'chart.crosshairs': false,
+ 'chart.crosshairs.color': '#333',
+ 'chart.crosshairs.linewidth': 1,
+ 'chart.crosshairs.coords': false,
+ 'chart.crosshairs.coords.fixed':true,
+ 'chart.crosshairs.coords.fadeout':false,
+ 'chart.crosshairs.coords.labels.x': 'X',
+ 'chart.crosshairs.coords.labels.y': 'Y',
+ 'chart.crosshairs.hline': true,
+ 'chart.crosshairs.vline': true,
+ 'chart.annotatable': false,
+ 'chart.annotate.color': 'black',
+ 'chart.line': false,
+ 'chart.line.linewidth': 1,
+ 'chart.line.colors': ['green', 'red'],
+ 'chart.line.shadow.color': 'rgba(0,0,0,0)',
+ 'chart.line.shadow.blur': 2,
+ 'chart.line.shadow.offsetx': 3,
+ 'chart.line.shadow.offsety': 3,
+ 'chart.line.stepped': false,
+ 'chart.noaxes': false,
+ 'chart.key': [],
+ 'chart.key.background': 'white',
+ 'chart.key.position': 'graph',
+ 'chart.key.halign': 'right',
+ 'chart.key.shadow': false,
+ 'chart.key.shadow.color': '#666',
+ 'chart.key.shadow.blur': 3,
+ 'chart.key.shadow.offsetx': 2,
+ 'chart.key.shadow.offsety': 2,
+ 'chart.key.position.gutter.boxed': true,
+ 'chart.key.position.x': null,
+ 'chart.key.position.y': null,
+ 'chart.key.color.shape': 'square',
+ 'chart.key.rounded': true,
+ 'chart.key.linewidth': 1,
+ 'chart.axis.color': 'black',
+ 'chart.zoom.factor': 1.5,
+ 'chart.zoom.fade.in': true,
+ 'chart.zoom.fade.out': true,
+ 'chart.zoom.hdir': 'right',
+ 'chart.zoom.vdir': 'down',
+ 'chart.zoom.frames': 25,
+ 'chart.zoom.delay': 16.666,
+ 'chart.zoom.shadow': true,
+ 'chart.zoom.mode': 'canvas',
+ 'chart.zoom.thumbnail.width': 75,
+ 'chart.zoom.thumbnail.height': 75,
+ 'chart.zoom.background': true,
+ 'chart.zoom.action': 'zoom',
+ 'chart.boxplot.width': 8,
+ 'chart.boxplot.capped': true,
+ 'chart.resizable': false,
+ 'chart.resize.handle.background': null,
+ 'chart.xmin': 0,
+ 'chart.labels.specific.align': 'left',
+ 'chart.xscale': false,
+ 'chart.xscale.units.pre': '',
+ 'chart.xscale.units.post': '',
+ 'chart.xscale.numlabels': 10,
+ 'chart.xscale.formatter': null,
+ 'chart.noendxtick': false,
+ 'chart.noendytick': true
+ }
+
+ // Handle multiple datasets being given as one argument
+ if (arguments[1][0] && arguments[1][0][0] && typeof(arguments[1][0][0][0]) == 'number') {
+ // Store the data set(s)
+ for (var i=0; i<arguments[1].length; ++i) {
+ this.data[i] = arguments[1][i];
+ }
+
+ // Handle multiple data sets being supplied as seperate arguments
+ } else {
+ // Store the data set(s)
+ for (var i=1; i<arguments.length; ++i) {
+ this.data[i - 1] = arguments[i];
+ }
+ }
+
+ // Check for support
+ if (!this.canvas) {
+ alert('[SCATTER] No canvas support');
+ return;
+ }
+
+
+ /**
+ * Set the .getShape commonly named method
+ */
+ this.getShape = this.getPoint;
+ }
+
+
+ /**
+ * A simple setter
+ *
+ * @param string name The name of the property to set
+ * @param string value The value of the property
+ */
+ RGraph.Scatter.prototype.Set = function (name, value)
+ {
+ /**
+ * This is here because the key expects a name of "chart.colors"
+ */
+ if (name == 'chart.line.colors') {
+ this.properties['chart.colors'] = value;
+ }
+
+ /**
+ * Allow compatibility with older property names
+ */
+ if (name == 'chart.tooltip.hotspot') {
+ name = 'chart.tooltips.hotspot';
+ }
+
+ /**
+ * chart.yaxispos should be left or right
+ */
+ if (name == 'chart.yaxispos' && value != 'left' && value != 'right') {
+ alert("[SCATTER] chart.yaxispos should be left or right. You've set it to: '" + value + "' Changing it to left");
+ value = 'left';
+ }
+
+ /**
+ * Check for xaxispos
+ */
+ if (name == 'chart.xaxispos' ) {
+ if (value != 'bottom' && value != 'center') {
+ alert('[SCATTER] (' + this.id + ') chart.xaxispos should be center or bottom. Tried to set it to: ' + value + ' Changing it to center');
+ value = 'center';
+ }
+ }
+
+ this.properties[name.toLowerCase()] = value;
+ }
+
+
+ /**
+ * A simple getter
+ *
+ * @param string name The name of the property to set
+ */
+ RGraph.Scatter.prototype.Get = function (name)
+ {
+ return this.properties[name];
+ }
+
+
+ /**
+ * The function you call to draw the line chart
+ */
+ RGraph.Scatter.prototype.Draw = function ()
+ {
+ // MUST be the first thing done!
+ if (typeof(this.Get('chart.background.image')) == 'string' && !this.__background_image__) {
+ RGraph.DrawBackgroundImage(this);
+ return;
+ }
+
+ /**
+ * Fire the onbeforedraw event
+ */
+ RGraph.FireCustomEvent(this, 'onbeforedraw');
+
+ /**
+ * Clear all of this canvases event handlers (the ones installed by RGraph)
+ */
+ RGraph.ClearEventListeners(this.id);
+
+ /**
+ * This is new in May 2011 and facilitates indiviual gutter settings,
+ * eg chart.gutter.left
+ */
+ this.gutterLeft = this.Get('chart.gutter.left');
+ this.gutterRight = this.Get('chart.gutter.right');
+ this.gutterTop = this.Get('chart.gutter.top');
+ this.gutterBottom = this.Get('chart.gutter.bottom');
+
+ // Go through all the data points and see if a tooltip has been given
+ this.Set('chart.tooltips', false);
+ this.hasTooltips = false;
+ var overHotspot = false;
+
+ // Reset the coords array
+ this.coords = [];
+
+ if (!RGraph.isIE8()) {
+ for (var i=0; i<this.data.length; ++i) {
+ for (var j =0;j<this.data[i].length; ++j) {
+ if (this.data[i][j] && this.data[i][j][3] && typeof(this.data[i][j][3]) == 'string' && this.data[i][j][3].length) {
+ this.Set('chart.tooltips', [1]); // An array
+ this.hasTooltips = true;
+ }
+ }
+ }
+ }
+
+ // Reset the maximum value
+ this.max = 0;
+
+ // Work out the maximum Y value
+ if (this.Get('chart.ymax') && this.Get('chart.ymax') > 0) {
+
+ this.scale = [];
+ this.max = this.Get('chart.ymax');
+ this.min = this.Get('chart.ymin') ? this.Get('chart.ymin') : 0;
+
+ this.scale[0] = ((this.max - this.min) * (1/5)) + this.min;
+ this.scale[1] = ((this.max - this.min) * (2/5)) + this.min;
+ this.scale[2] = ((this.max - this.min) * (3/5)) + this.min;
+ this.scale[3] = ((this.max - this.min) * (4/5)) + this.min;
+ this.scale[4] = ((this.max - this.min) * (5/5)) + this.min;
+
+ var decimals = this.Get('chart.scale.decimals');
+
+ this.scale = [
+ Number(this.scale[0]).toFixed(decimals),
+ Number(this.scale[1]).toFixed(decimals),
+ Number(this.scale[2]).toFixed(decimals),
+ Number(this.scale[3]).toFixed(decimals),
+ Number(this.scale[4]).toFixed(decimals)
+ ];
+
+ } else {
+
+ var i = 0;
+ var j = 0;
+
+ for (i=0; i<this.data.length; ++i) {
+ for (j=0; j<this.data[i].length; ++j) {
+ this.max = Math.max(this.max, typeof(this.data[i][j][1]) == 'object' ? RGraph.array_max(this.data[i][j][1]) : Math.abs(this.data[i][j][1]));
+ }
+ }
+
+ this.scale = RGraph.getScale(this.max, this);
+
+ this.max = this.scale[4];
+ this.min = this.Get('chart.ymin') ? this.Get('chart.ymin') : 0;
+
+ if (this.min) {
+ this.scale[0] = ((this.max - this.min) * (1/5)) + this.min;
+ this.scale[1] = ((this.max - this.min) * (2/5)) + this.min;
+ this.scale[2] = ((this.max - this.min) * (3/5)) + this.min;
+ this.scale[3] = ((this.max - this.min) * (4/5)) + this.min;
+ this.scale[4] = ((this.max - this.min) * (5/5)) + this.min;
+ }
+
+
+ if (typeof(this.Get('chart.scale.decimals')) == 'number') {
+ var decimals = this.Get('chart.scale.decimals');
+
+ this.scale = [
+ Number(this.scale[0]).toFixed(decimals),
+ Number(this.scale[1]).toFixed(decimals),
+ Number(this.scale[2]).toFixed(decimals),
+ Number(this.scale[3]).toFixed(decimals),
+ Number(this.scale[4]).toFixed(decimals)
+ ];
+ }
+ }
+
+ this.grapharea = this.canvas.height - this.gutterTop - this.gutterBottom;
+
+ // Progressively Draw the chart
+ RGraph.background.Draw(this);
+
+ /**
+ * Draw any horizontal bars that have been specified
+ */
+ if (this.Get('chart.background.hbars') && this.Get('chart.background.hbars').length) {
+ RGraph.DrawBars(this);
+ }
+
+ /**
+ * Draw any vertical bars that have been specified
+ */
+ if (this.Get('chart.background.vbars') && this.Get('chart.background.vbars').length) {
+ this.DrawVBars();
+ }
+
+ if (!this.Get('chart.noaxes')) {
+ this.DrawAxes();
+ }
+
+ this.DrawLabels();
+
+ i = 0;
+ for(i=0; i<this.data.length; ++i) {
+ this.DrawMarks(i);
+
+ // Set the shadow
+ this.context.shadowColor = this.Get('chart.line.shadow.color');
+ this.context.shadowOffsetX = this.Get('chart.line.shadow.offsetx');
+ this.context.shadowOffsetY = this.Get('chart.line.shadow.offsety');
+ this.context.shadowBlur = this.Get('chart.line.shadow.blur');
+
+ this.DrawLine(i);
+
+ // Turn the shadow off
+ RGraph.NoShadow(this);
+ }
+
+
+ if (this.Get('chart.line')) {
+ for (var i=0;i<this.data.length; ++i) {
+ this.DrawMarks(i); // Call this again so the tickmarks appear over the line
+ }
+ }
+
+
+
+ /**
+ * Setup the context menu if required
+ */
+ if (this.Get('chart.contextmenu')) {
+ RGraph.ShowContext(this);
+ }
+
+ /**
+ * Install the event handler for tooltips
+ */
+ if (this.hasTooltips) {
+
+ /**
+ * Register all charts
+ */
+ RGraph.Register(this);
+
+ var overHotspot = false;
+
+ var canvas_onmousemove_func = function (e)
+ {
+ e = RGraph.FixEventObject(e);
+
+ var canvas = e.target;
+ var obj = canvas.__object__;
+ var context = obj.context;
+ var mouseCoords = RGraph.getMouseXY(e);
+ var point = obj.getPoint(e);
+ var overHotspot = false;
+
+ if (point) {
+
+ var __dataset__ = point[2];
+ var __index__ = point[3];
+ var __text__ = point[4];
+ var overHotspot = true;
+
+
+
+ if (point[4]) {
+ canvas.style.cursor = 'pointer';
+
+ if (
+ !RGraph.Registry.Get('chart.tooltip') ||
+ RGraph.Registry.Get('chart.tooltip').__text__ != __text__ ||
+ RGraph.Registry.Get('chart.tooltip').__index__ != __index__ ||
+ RGraph.Registry.Get('chart.tooltip').__dataset__ != __dataset__
+ ) {
+
+ if (obj.Get('chart.tooltips.highlight')) {
+ RGraph.Redraw();
+ }
+
+ /**
+ * Get the tooltip text
+ */
+ if (typeof(__text__) == 'function') {
+ var text = String(__text__(i));
+
+ } else {
+ var text = String(__text__);
+ }
+
+ RGraph.Tooltip(canvas, text, e.pageX, e.pageY, __index__);
+
+ RGraph.Registry.Get('chart.tooltip').__index__ = __index__;
+
+ if (RGraph.Registry.Get('chart.tooltip')) {
+ RGraph.Registry.Get('chart.tooltip').__dataset__ = __dataset__;
+ }
+
+
+
+ /**
+ * Draw a circle around the mark. Also highlight the boxplot if necessary
+ */
+ if (obj.Get('chart.tooltips.highlight') && typeof(point[0]) == 'object') {
+ context.beginPath();
+ context.strokeStyle = 'black';
+ context.fillStyle = 'rgba(255,255,255,0.5)';
+ context.strokeRect(point[0][0], point[1][0], point[0][1], point[1][1]);
+ context.fillRect(point[0][0], point[1][0], point[0][1], point[1][1]);
+ context.stroke();
+ context.fill();
+
+ } else if (obj.Get('chart.tooltips.highlight') && typeof(point[0]) == 'number') {
+ context.beginPath();
+ context.fillStyle = 'rgba(255,255,255,0.5)';
+ context.arc(point[0], point[1], 3, 0, 6.28, 0);
+ context.fill();
+ }
+ }
+ }
+ }
+
+ /**
+ * Reset the pointer
+ */
+ if (!overHotspot || !point[4]) {
+ canvas.style.cursor = 'default';
+ }
+ }
+ this.canvas.addEventListener('mousemove', canvas_onmousemove_func, false);
+ RGraph.AddEventListener(this.id, 'mousemove', canvas_onmousemove_func);
+ }
+
+
+ /**
+ * Draw the key if necessary
+ */
+ if (this.Get('chart.key') && this.Get('chart.key').length) {
+ RGraph.DrawKey(this, this.Get('chart.key'), this.Get('chart.line.colors'));
+ }
+
+
+ /**
+ * Draw " above" labels if enabled
+ */
+ if (this.Get('chart.labels.above')) {
+ this.DrawAboveLabels();
+ }
+
+ /**
+ * Draw the "in graph" labels, using the member function, NOT the shared function in RGraph.common.core.js
+ */
+ this.DrawInGraphLabels(this);
+
+
+ /**
+ * Draw crosschairs
+ */
+ RGraph.DrawCrosshairs(this);
+
+
+ /**
+ * If the canvas is annotatable, do install the event handlers
+ */
+ if (this.Get('chart.annotatable')) {
+ RGraph.Annotate(this);
+ }
+
+ /**
+ * This bit shows the mini zoom window if requested
+ */
+ if (this.Get('chart.zoom.mode') == 'thumbnail' || this.Get('chart.zoom.mode') == 'area') {
+ RGraph.ShowZoomWindow(this);
+ }
+
+
+ /**
+ * This function enables resizing
+ */
+ if (this.Get('chart.resizable')) {
+ RGraph.AllowResizing(this);
+ }
+
+ /**
+ * Fire the RGraph ondraw event
+ */
+ RGraph.FireCustomEvent(this, 'ondraw');
+ }
+
+
+ /**
+ * Draws the axes of the scatter graph
+ */
+ RGraph.Scatter.prototype.DrawAxes = function ()
+ {
+ var canvas = this.canvas;
+ var context = this.context;
+ var graphHeight = RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom;
+
+ context.beginPath();
+ context.strokeStyle = this.Get('chart.axis.color');
+ context.lineWidth = 1;
+
+ // Draw the Y axis
+ if (this.Get('chart.yaxispos') == 'left') {
+ context.moveTo(this.gutterLeft, this.gutterTop);
+ context.lineTo(this.gutterLeft, RGraph.GetHeight(this) - this.gutterBottom);
+ } else {
+ context.moveTo(RGraph.GetWidth(this) - this.gutterRight, this.gutterTop);
+ context.lineTo(RGraph.GetWidth(this) - this.gutterRight, RGraph.GetHeight(this) - this.gutterBottom);
+ }
+
+
+ // Draw the X axis
+ if (this.Get('chart.xaxis')) {
+ if (this.Get('chart.xaxispos') == 'center') {
+ context.moveTo(this.gutterLeft, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) / 2));
+ context.lineTo(this.canvas.width - this.gutterRight, this.gutterTop + ((this.canvas.height - this.gutterTop - this.gutterBottom) / 2));
+ } else {
+ context.moveTo(this.gutterLeft, this.canvas.height - this.gutterBottom);
+ context.lineTo(this.canvas.width - this.gutterRight, this.canvas.height - this.gutterBottom);
+ }
+ }
+
+ /**
+ * Draw the Y tickmarks
+ */
+ var numyticks = this.Get('chart.numyticks');
+
+ for (y=this.gutterTop; y < this.canvas.height - this.gutterBottom + (this.Get('chart.xaxispos') == 'center' ? 1 : 0) ; y+=(graphHeight / numyticks)) {
+
+ // This is here to accomodate the X axis being at the center
+ if (y == (this.gutterTop + ((this.canvas.height - this.gutterTop - this.gutterBottom) / 2)) ) continue;
+
+ if (this.Get('chart.yaxispos') == 'left') {
+ context.moveTo(this.gutterLeft, y);
+ context.lineTo(this.gutterLeft - 3, y);
+ } else {
+ context.moveTo(this.canvas.width - this.gutterRight +3, y);
+ context.lineTo(this.canvas.width - this.gutterRight, y);
+ }
+
+ /**
+ * Draw an extra tick if the X axis isn't being shown
+ */
+ if (this.Get('chart.xaxis') == false && this.Get('chart.noendytick') == false) {
+ this.context.moveTo(this.gutterLeft, this.canvas.height - this.gutterBottom);
+ this.context.lineTo(this.gutterLeft - 3, this.canvas.height - this.gutterBottom);
+ }
+ }
+
+
+ /**
+ * Draw the X tickmarks
+ */
+ if (this.Get('chart.xticks') && this.Get('chart.xaxis')) {
+ var x = 0;
+ var y = (this.Get('chart.xaxispos') == 'center') ? this.gutterTop + (this.grapharea / 2): (this.canvas.height - this.gutterBottom);
+ this.xTickGap = (this.Get('chart.labels') && this.Get('chart.labels').length) ? ((this.canvas.width - this.gutterLeft - this.gutterRight ) / this.Get('chart.labels').length) : (this.canvas.width - this.gutterLeft - this.gutterRight) / 10;
+
+ for (x = (this.gutterLeft + (this.Get('chart.yaxispos') == 'left' ? this.xTickGap : 0) );
+ x <= (this.canvas.width - this.gutterRight - (this.Get('chart.yaxispos') == 'left' ? 0 : 1));
+ x += this.xTickGap) {
+
+ if (this.Get('chart.yaxispos') == 'left' && this.Get('chart.noendxtick') == true && x == (this.canvas.width - this.gutterRight) ) {
+ continue;
+ } else if (this.Get('chart.yaxispos') == 'right' && this.Get('chart.noendxtick') == true && x == this.gutterLeft) {
+ continue;
+ }
+
+ context.moveTo(x, y - (this.Get('chart.xaxispos') == 'center' ? 3 : 0));
+ context.lineTo(x, y + 3);
+ }
+ }
+
+ context.stroke();
+ }
+
+
+
+
+
+
+
+
+
+
+
+ /**
+ * Draws the labels on the scatter graph
+ */
+ RGraph.Scatter.prototype.DrawLabels = function ()
+ {
+ this.context.fillStyle = this.Get('chart.text.color');
+ var font = this.Get('chart.text.font');
+ var xMin = this.Get('chart.xmin');
+ var xMax = this.Get('chart.xmax');
+ var yMax = this.scale[4];
+ var yMin = this.Get('chart.ymin');
+ var text_size = this.Get('chart.text.size');
+ var units_pre = this.Get('chart.units.pre');
+ var units_post = this.Get('chart.units.post');
+ var numYLabels = this.Get('chart.ylabels.count');
+ var invert = this.Get('chart.ylabels.invert');
+ var inside = this.Get('chart.ylabels.inside');
+ var context = this.context;
+ var canvas = this.canvas;
+ var boxed = false;
+
+ this.halfTextHeight = text_size / 2;
+
+
+ this.halfGraphHeight = (this.canvas.height - this.gutterTop - this.gutterBottom) / 2;
+
+ /**
+ * Draw the Y yaxis labels, be it at the top or center
+ */
+ if (this.Get('chart.ylabels')) {
+
+ var xPos = this.Get('chart.yaxispos') == 'left' ? this.gutterLeft - 5 : RGraph.GetWidth(this) - this.gutterRight + 5;
+ var align = this.Get('chart.yaxispos') == 'right' ? 'left' : 'right';
+
+ /**
+ * Now change the two things above if chart.ylabels.inside is specified
+ */
+ if (inside) {
+ if (this.Get('chart.yaxispos') == 'left') {
+ xPos = this.Get('chart.gutter.left') + 5;
+ align = 'left';
+ boxed = true;
+ } else {
+ xPos = this.canvas.width - this.Get('chart.gutter.right') - 5;
+ align = 'right';
+ boxed = true;
+ }
+ }
+
+ if (this.Get('chart.xaxispos') == 'center') {
+
+
+ /**
+ * Specific Y labels
+ */
+ if (typeof(this.Get('chart.ylabels.specific')) == 'object' && this.Get('chart.ylabels.specific') != null && this.Get('chart.ylabels.specific').length) {
+
+ var labels = this.Get('chart.ylabels.specific');
+
+ if (this.Get('chart.ymin') > 0) {
+ labels = [];
+ for (var i=0; i<(this.Get('chart.ylabels.specific').length - 1); ++i) {
+ labels.push(this.Get('chart.ylabels.specific')[i]);
+ }
+ }
+
+ for (var i=0; i<labels.length; ++i) {
+ var y = this.gutterTop + (i * (this.grapharea / (labels.length * 2) ) );
+ RGraph.Text(context, font, text_size, xPos, y, labels[i], 'center', align, boxed);
+ }
+
+ var reversed_labels = RGraph.array_reverse(labels);
+
+ for (var i=0; i<reversed_labels.length; ++i) {
+ var y = this.gutterTop + (this.grapharea / 2) + ((i+1) * (this.grapharea / (labels.length * 2) ) );
+ RGraph.Text(context,font, text_size, xPos, y, reversed_labels[i], 'center', align, boxed);
+ }
+
+ /**
+ * Draw the center label if chart.ymin is specified
+ */
+ if (this.Get('chart.ymin') > 0) {
+ RGraph.Text(context, font, text_size, xPos, (this.grapharea / 2) + this.Get('chart.gutter.top'), this.Get('chart.ylabels.specific')[this.Get('chart.ylabels.specific').length - 1], 'center', align, boxed);
+ }
+
+ return;
+ }
+
+
+ if (numYLabels == 1 || numYLabels == 3 || numYLabels == 5) {
+ // Draw the top halves labels
+ RGraph.Text(context, font, text_size, xPos, this.gutterTop, RGraph.number_format(this, this.scale[4], units_pre, units_post), 'center', align, boxed);
+
+
+ if (numYLabels >= 5) {
+ RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (1/10) ), RGraph.number_format(this, this.scale[3], units_pre, units_post), 'center', align, boxed);
+ RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (3/10) ), RGraph.number_format(this, this.scale[1], units_pre, units_post), 'center', align, boxed);
+ }
+
+ if (numYLabels >= 3) {
+ RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (2/10) ), RGraph.number_format(this, this.scale[2], units_pre, units_post), 'center', align, boxed);
+ RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (4/10) ), RGraph.number_format(this, this.scale[0], units_pre, units_post), 'center', align, boxed);
+ }
+
+ // Draw the bottom halves labels
+ if (numYLabels >= 3) {
+ RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (1/10) ) + this.halfGraphHeight, '-' + RGraph.number_format(this, this.scale[0], units_pre, units_post), 'center', align, boxed);
+ RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (3/10) ) + this.halfGraphHeight, '-' + RGraph.number_format(this, this.scale[2], units_pre, units_post), 'center', align, boxed);
+ }
+
+ if (numYLabels == 5) {
+ RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (2/10) ) + this.halfGraphHeight, '-' + RGraph.number_format(this, this.scale[1], units_pre, units_post), 'center', align, boxed);
+ RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (4/10) ) + this.halfGraphHeight, '-' + RGraph.number_format(this, this.scale[3], units_pre, units_post), 'center', align, boxed);
+ }
+
+ RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((this.canvas.height - this.gutterTop - this.gutterBottom) * (5/10) ) + this.halfGraphHeight, '-' + RGraph.number_format(this, this.scale[4], units_pre, units_post), 'center', align, boxed);
+
+ } else if (numYLabels == 10) {
+ // 10 Y labels
+ var interval = (this.grapharea / numYLabels) / 2;
+
+ for (var i=0; i<numYLabels; ++i) {
+ RGraph.Text(context, font, text_size, xPos,this.gutterTop + ((this.canvas.height - this.gutterTop - this.gutterBottom) * (i/20) ),RGraph.number_format(this,(this.max - (this.max * (i/10))).toFixed(this.Get('chart.scale.decimals')),units_pre, units_post),'center', align, boxed);
+ RGraph.Text(context, font, text_size, xPos,this.gutterTop + ((this.canvas.height - this.gutterTop - this.gutterBottom) * (i/20) ) + (this.grapharea / 2) + (this.grapharea / 20),'-' + RGraph.number_format(this, ((this.max * (i/10)) + (this.max * (1/10))).toFixed((this.Get('chart.scale.decimals'))), units_pre, units_post), 'center', align, boxed);
+ }
+
+ } else {
+ alert('[SCATTER SCALE] Number of Y labels can be 1/3/5/10 only');
+ }
+
+ } else {
+
+ var xPos = this.Get('chart.yaxispos') == 'left' ? this.gutterLeft - 5 : this.canvas.width - this.gutterRight + 5;
+ var align = this.Get('chart.yaxispos') == 'right' ? 'left' : 'right';
+
+ if (inside) {
+ if (this.Get('chart.yaxispos') == 'left') {
+ xPos = this.Get('chart.gutter.left') + 5;
+ align = 'left';
+ boxed = true;
+ } else {
+ xPos = this.canvas.width - this.Get('chart.gutter.right') - 5;
+ align = 'right';
+ boxed = true;
+ }
+ }
+ /**
+ * Specific Y labels
+ */
+ if (typeof(this.Get('chart.ylabels.specific')) == 'object' && this.Get('chart.ylabels.specific')) {
+
+ var labels = this.Get('chart.ylabels.specific');
+
+ // Lose the last label
+ if (this.Get('chart.ymin') > 0) {
+ labels = [];
+ for (var i=0; i<(this.Get('chart.ylabels.specific').length - 1); ++i) {
+ labels.push(this.Get('chart.ylabels.specific')[i]);
+ }
+ }
+
+ for (var i=0; i<labels.length; ++i) {
+ var y = this.gutterTop + (i * (this.grapharea / labels.length) );
+
+ RGraph.Text(context, font, text_size, xPos, y, labels[i], 'center', align, boxed);
+ }
+
+ /**
+ * Draw the center label if chart.ymin is specified
+ */
+ if (this.Get('chart.ymin') > 0) {
+ RGraph.Text(context, font, text_size, xPos, this.canvas.height - this.Get('chart.gutter.bottom'), this.Get('chart.ylabels.specific')[this.Get('chart.ylabels.specific').length - 1], 'center', align, boxed);
+ }
+
+ return;
+ }
+
+ if (numYLabels == 1 || numYLabels == 3 || numYLabels == 5) {
+ if (invert) {
+ RGraph.Text(context, font, text_size, xPos, this.gutterTop, RGraph.number_format(this, 0, units_pre, units_post), 'center', align, boxed);
+ RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (5/5) ), RGraph.number_format(this, this.scale[4], units_pre, units_post), 'center', align, boxed);
+
+ if (numYLabels >= 5) {
+ RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((this.canvas.height - this.gutterTop - this.gutterBottom) * (2/5) ), RGraph.number_format(this, this.scale[1], units_pre, units_post), 'center', align, boxed);
+ RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((this.canvas.height - this.gutterTop - this.gutterBottom) * (4/5) ), RGraph.number_format(this, this.scale[3], units_pre, units_post), 'center', align, boxed);
+ }
+
+ if (numYLabels >= 3) {
+ RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((this.canvas.height - this.gutterTop - this.gutterBottom) * (3/5) ), RGraph.number_format(this, this.scale[2], units_pre, units_post), 'center', align, boxed);
+ RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((this.canvas.height - this.gutterTop - this.gutterBottom) * (1/5) ), RGraph.number_format(this, this.scale[0], units_pre, units_post), 'center', align, boxed);
+ }
+ } else {
+ RGraph.Text(context, font, text_size, xPos, this.gutterTop, RGraph.number_format(this, this.scale[4], units_pre, units_post), 'center', align, boxed);
+
+ if (numYLabels >= 5) {
+ RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((this.canvas.height - this.gutterTop - this.gutterBottom) * (1/5) ), RGraph.number_format(this, this.scale[3], units_pre, units_post), 'center', align, boxed);
+ RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((this.canvas.height - this.gutterTop - this.gutterBottom) * (3/5) ), RGraph.number_format(this, this.scale[1], units_pre, units_post), 'center', align, boxed);
+ }
+
+ if (numYLabels >= 3) {
+ RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((this.canvas.height - this.gutterTop - this.gutterBottom) * (2/5) ), RGraph.number_format(this, this.scale[2], units_pre, units_post), 'center', align, boxed);
+ RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((this.canvas.height - this.gutterTop - this.gutterBottom) * (4/5) ), RGraph.number_format(this, this.scale[0], units_pre, units_post), 'center', align, boxed);
+ }
+ }
+ } else if (numYLabels == 10) {
+ var interval = (this.grapharea / numYLabels) / 2;
+ if (invert) {
+ for (var i=numYLabels; i>=0; --i) {
+ RGraph.Text(context, font, text_size, xPos,this.gutterTop + ((this.canvas.height - this.gutterTop - this.gutterBottom) * ((10-i)/10) ),RGraph.number_format(this,(this.max - (this.max * (i/10))).toFixed((this.Get('chart.scale.decimals'))), units_pre, units_post),'center', align, boxed);
+ }
+ } else {
+ // 10 Y labels
+ for (var i=0; i<numYLabels; ++i) {
+
+ RGraph.Text(context, font, text_size, xPos,this.gutterTop + ((this.canvas.height - this.gutterTop - this.gutterBottom) * (i/10) ),RGraph.number_format(this, (this.max - ((this.max - this.min) * (i/10))).toFixed((this.Get('chart.scale.decimals'))), units_pre, units_post),'center', align, boxed);
+ }
+ }
+ } else {
+ alert('[SCATTER SCALE] Number of Y labels can be 1/3/5/10 only');
+ }
+
+ if (this.Get('chart.ymin')) {
+ RGraph.Text(context, font, text_size, xPos, this.canvas.height - this.gutterBottom,RGraph.number_format(this, this.Get('chart.ymin').toFixed(this.Get('chart.scale.decimals')), units_pre, units_post),'center', align, boxed);
+ }
+ }
+ }
+
+
+
+
+ /**
+ * Draw an X scale
+ */
+ if (this.Get('chart.xscale')) {
+
+ var numXLabels = this.Get('chart.xscale.numlabels');
+ var interval = (this.canvas.width - this.gutterLeft - this.gutterRight) / numXLabels;
+ var y = this.canvas.height - this.gutterBottom + 5 + (text_size / 2);
+ var units_pre_x = this.Get('chart.xscale.units.pre');
+ var units_post_x = this.Get('chart.xscale.units.post');
+
+
+ if (!this.Get('chart.xmax')) {
+ var xmax = 0;
+
+ for (var ds=0; ds<this.data.length; ++ds) {
+ for (var point=0; point<this.data[ds].length; ++point) {
+ xmax = Math.max(xmax, this.data[ds][point][0]);
+ }
+ }
+
+ this.Set('chart.xmax', RGraph.getScale(xmax)[4]);
+ }
+
+
+ for (var i=0; i<numXLabels; ++i) {
+
+ var num = ( (this.Get('chart.xmax') - this.Get('chart.xmin')) * ((i+1) / numXLabels)) + this.Get('chart.xmin');
+ var x = this.gutterLeft + ((i+1) * interval);
+
+ if (typeof(this.Get('chart.xscale.formatter')) == 'function') {
+ var text = this.Get('chart.xscale.formatter')(this, num);
+ } else {
+ var text = RGraph.number_format(this,
+ num.toFixed(this.Get('chart.scale.decimals')),
+ units_pre_x,
+ units_post_x);
+ }
+
+ RGraph.Text(context, font, text_size, x, y, text, 'center', 'center');
+ }
+
+ /**
+ * Draw X labels
+ */
+ } else {
+ // Put the text on the X axis
+ var graphArea = this.canvas.width - this.gutterLeft - this.gutterRight;
+ var xInterval = graphArea / this.Get('chart.labels').length;
+ var xPos = this.gutterLeft;
+ var yPos = (this.canvas.height - this.gutterBottom) + 15;
+ var labels = this.Get('chart.labels');
+
+ /**
+ * Text angle
+ */
+ var angle = 0;
+ var valign = null;
+ var halign = 'center';
+
+ if (this.Get('chart.text.angle') > 0) {
+ angle = -1 * this.Get('chart.text.angle');
+ valign = 'center';
+ halign = 'right';
+ yPos -= 10;
+ }
+
+ for (i=0; i<labels.length; ++i) {
+
+ if (typeof(labels[i]) == 'object') {
+
+ if (this.Get('chart.labels.specific.align') == 'center') {
+ var rightEdge = 0;
+
+ if (labels[i+1] && labels[i+1][1]) {
+ rightEdge = labels[i+1][1];
+ } else {
+ rightEdge = this.Get('chart.xmax');
+ }
+
+ var offset = (rightEdge - labels[i][1]) / 2;
+
+ } else {
+ var offset = 0;
+ }
+
+
+ RGraph.Text(context,
+ font,
+ this.Get('chart.text.size'),
+ this.gutterLeft + (graphArea * ((labels[i][1] - xMin + offset) / (this.Get('chart.xmax') - xMin))) + 5,
+ yPos,
+ String(labels[i][0]),
+ valign,
+ angle != 0 ? 'right' : (this.Get('chart.labels.specific.align') == 'center' ? 'center' : 'left'),
+ null,
+ angle
+ );
+
+ /**
+ * Draw the gray indicator line
+ */
+ this.context.beginPath();
+ this.context.strokeStyle = '#bbb';
+ this.context.moveTo(this.gutterLeft + (graphArea * ((labels[i][1] - xMin)/ (this.Get('chart.xmax') - xMin))), RGraph.GetHeight(this) - this.gutterBottom);
+ this.context.lineTo(this.gutterLeft + (graphArea * ((labels[i][1] - xMin)/ (this.Get('chart.xmax') - xMin))), RGraph.GetHeight(this) - this.gutterBottom + 20);
+ this.context.stroke();
+
+ } else {
+ RGraph.Text(context, font, this.Get('chart.text.size'), xPos + (this.xTickGap / 2), yPos, String(labels[i]), valign, halign, null, angle);
+ }
+
+ // Do this for the next time around
+ xPos += xInterval;
+ }
+
+ /**
+ * Draw the final indicator line
+ */
+ if (typeof(labels[0]) == 'object') {
+ this.context.beginPath();
+ this.context.strokeStyle = '#bbb';
+ this.context.moveTo(this.gutterLeft + graphArea, RGraph.GetHeight(this) - this.gutterBottom);
+ this.context.lineTo(this.gutterLeft + graphArea, RGraph.GetHeight(this) - this.gutterBottom + 20);
+ this.context.stroke();
+ }
+ }
+ }
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ /**
+ * Draws the actual scatter graph marks
+ *
+ * @param i integer The dataset index
+ */
+ RGraph.Scatter.prototype.DrawMarks = function (i)
+ {
+ /**
+ * Reset the coords array
+ */
+ this.coords[i] = [];
+
+ /**
+ * Plot the values
+ */
+ var xmax = this.Get('chart.xmax');
+ var default_color = this.Get('chart.defaultcolor');
+
+ for (var j=0; j<this.data[i].length; ++j) {
+ /**
+ * This is here because tooltips are optional
+ */
+ var data_point = this.data[i];
+
+ var xCoord = data_point[j][0];
+ var yCoord = data_point[j][1];
+ var color = data_point[j][2] ? data_point[j][2] : default_color;
+ var tooltip = (data_point[j] && data_point[j][3]) ? data_point[j][3] : null;
+
+
+ this.DrawMark(
+ i,
+ xCoord,
+ yCoord,
+ xmax,
+ this.scale[4],
+ color,
+ tooltip,
+ this.coords[i],
+ data_point
+ );
+ }
+ }
+
+
+ /**
+ * Draws a single scatter mark
+ */
+ RGraph.Scatter.prototype.DrawMark = function (index, x, y, xMax, yMax, color, tooltip, coords, data)
+ {
+ /**
+ * Inverted Y scale handling
+ */
+ if (this.Get('chart.ylabels.invert')) {
+ if (typeof(y) == 'number') {
+ y = yMax - y;
+ }
+ }
+
+ var tickmarks = this.Get('chart.tickmarks');
+ var tickSize = this.Get('chart.ticksize');
+ var xMin = this.Get('chart.xmin');
+ var x = ((x - xMin) / (xMax - xMin)) * (this.canvas.width - this.gutterLeft - this.gutterRight);
+ var originalX = x;
+ var originalY = y;
+
+
+ /**
+ * This allows chart.tickmarks to be an array
+ */
+
+ if (tickmarks && typeof(tickmarks) == 'object') {
+ tickmarks = tickmarks[index];
+ }
+
+
+ /**
+ * This allows chart.ticksize to be an array
+ */
+ if (typeof(tickSize) == 'object') {
+ var tickSize = tickSize[index];
+ var halfTickSize = tickSize / 2;
+ } else {
+ var halfTickSize = tickSize / 2;
+ }
+
+
+ /**
+ * This bit is for boxplots only
+ */
+ if ( typeof(y) == 'object'
+ && typeof(y[0]) == 'number'
+ && typeof(y[1]) == 'number'
+ && typeof(y[2]) == 'number'
+ && typeof(y[3]) == 'number'
+ && typeof(y[4]) == 'number'
+ ) {
+
+ var yMin = this.Get('chart.ymin') ? this.Get('chart.ymin') : 0;
+ this.Set('chart.boxplot', true);
+ this.graphheight = this.canvas.height - this.gutterTop - this.gutterBottom;
+
+ if (this.Get('chart.xaxispos') == 'center') {
+ this.graphheight /= 2;
+ }
+
+ var y0 = (this.graphheight) - ((y[4] - yMin) / (yMax - yMin)) * (this.graphheight);
+ var y1 = (this.graphheight) - ((y[3] - yMin) / (yMax - yMin)) * (this.graphheight);
+ var y2 = (this.graphheight) - ((y[2] - yMin) / (yMax - yMin)) * (this.graphheight);
+ var y3 = (this.graphheight) - ((y[1] - yMin) / (yMax - yMin)) * (this.graphheight);
+ var y4 = (this.graphheight) - ((y[0] - yMin) / (yMax - yMin)) * (this.graphheight);
+
+ /**
+ * Inverted labels
+ */
+ if (this.Get('chart.ylabels.invert')) {
+ y0 = this.graphheight - y0;
+ y1 = this.graphheight - y1;
+ y2 = this.graphheight - y2;
+ y3 = this.graphheight - y3;
+ y4 = this.graphheight - y4;
+ }
+
+ var col1 = y[5];
+ var col2 = y[6];
+
+ // Override the boxWidth
+ if (typeof(y[7]) == 'number') {
+ var boxWidth = y[7];
+ }
+
+ var y = this.graphheight - y2;
+
+ } else {
+ var yMin = this.Get('chart.ymin') ? this.Get('chart.ymin') : 0;
+ var y = (( (y - yMin) / (yMax - yMin)) * (RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom));
+ }
+
+ /**
+ * Account for the X axis being at the centre
+ */
+ if (this.Get('chart.xaxispos') == 'center') {
+ y /= 2;
+ y += this.halfGraphHeight;
+ }
+
+ // This is so that points are on the graph, and not the gutter
+ x += this.gutterLeft;
+ y = this.canvas.height - this.gutterBottom - y;
+
+ this.context.beginPath();
+
+ // Color
+ this.context.strokeStyle = color;
+
+ /**
+ * Boxplots
+ */
+ if ( this.Get('chart.boxplot')
+ && typeof(y0) == 'number'
+ && typeof(y1) == 'number'
+ && typeof(y2) == 'number'
+ && typeof(y3) == 'number'
+ && typeof(y4) == 'number'
+ ) {
+
+ var boxWidth = boxWidth ? boxWidth : this.Get('chart.boxplot.width');
+ var halfBoxWidth = boxWidth / 2;
+
+ this.context.beginPath();
+
+ // Draw the upper coloured box if a value is specified
+ if (col1) {
+ this.context.fillStyle = col1;
+ this.context.fillRect(x - halfBoxWidth, y1 + this.gutterTop, boxWidth, y2 - y1);
+ }
+
+ // Draw the lower coloured box if a value is specified
+ if (col2) {
+ this.context.fillStyle = col2;
+ this.context.fillRect(x - halfBoxWidth, y2 + this.gutterTop, boxWidth, y3 - y2);
+ }
+
+ this.context.strokeRect(x - halfBoxWidth, y1 + this.gutterTop, boxWidth, y3 - y1);
+ this.context.stroke();
+
+ // Now draw the whiskers
+ this.context.beginPath();
+ if (this.Get('chart.boxplot.capped')) {
+ this.context.moveTo(x - halfBoxWidth, y0 + this.gutterTop);
+ this.context.lineTo(x + halfBoxWidth, y0 + this.gutterTop);
+ }
+
+ this.context.moveTo(x, y0 + this.gutterTop);
+ this.context.lineTo(x, y1 + this.gutterTop);
+
+ if (this.Get('chart.boxplot.capped')) {
+ this.context.moveTo(x - halfBoxWidth, y4 + this.gutterTop);
+ this.context.lineTo(x + halfBoxWidth, y4 + this.gutterTop);
+ }
+
+ this.context.moveTo(x, y4 + this.gutterTop);
+ this.context.lineTo(x, y3 + this.gutterTop);
+
+ this.context.stroke();
+ }
+
+
+ /**
+ * Draw the tickmark, but not for boxplots
+ */
+ if (!y0 && !y1 && !y2 && !y3 && !y4) {
+
+ this.graphheight = this.canvas.height - this.gutterTop - this.gutterBottom;
+
+
+
+ if (tickmarks == 'circle') {
+ this.context.arc(x, y, halfTickSize, 0, 6.28, 0);
+ this.context.fillStyle = color;
+ this.context.fill();
+
+ } else if (tickmarks == 'plus') {
+
+ this.context.moveTo(x, y - halfTickSize);
+ this.context.lineTo(x, y + halfTickSize);
+ this.context.moveTo(x - halfTickSize, y);
+ this.context.lineTo(x + halfTickSize, y);
+ this.context.stroke();
+
+ } else if (tickmarks == 'square') {
+ this.context.strokeStyle = color;
+ this.context.fillStyle = color;
+ this.context.fillRect(
+ x - halfTickSize,
+ y - halfTickSize,
+ tickSize,
+ tickSize
+ );
+ //this.context.fill();
+
+ } else if (tickmarks == 'cross') {
+
+ this.context.moveTo(x - halfTickSize, y - halfTickSize);
+ this.context.lineTo(x + halfTickSize, y + halfTickSize);
+ this.context.moveTo(x + halfTickSize, y - halfTickSize);
+ this.context.lineTo(x - halfTickSize, y + halfTickSize);
+
+ this.context.stroke();
+
+ /**
+ * Diamond shape tickmarks
+ */
+ } else if (tickmarks == 'diamond') {
+ this.context.fillStyle = this.context.strokeStyle;
+
+ this.context.moveTo(x, y - halfTickSize);
+ this.context.lineTo(x + halfTickSize, y);
+ this.context.lineTo(x, y + halfTickSize);
+ this.context.lineTo(x - halfTickSize, y);
+ this.context.lineTo(x, y - halfTickSize);
+
+ this.context.fill();
+ this.context.stroke();
+
+ /**
+ * Custom tickmark style
+ */
+ } else if (typeof(tickmarks) == 'function') {
+
+ var graphWidth = RGraph.GetWidth(this) - this.gutterLeft - this.gutterRight
+ var xVal = ((x - this.gutterLeft) / graphWidth) * xMax;
+ var yVal = ((this.graphheight - (y - this.gutterTop)) / this.graphheight) * yMax;
+
+ tickmarks(this, data, x, y, xVal, yVal, xMax, yMax, color)
+
+ /**
+ * No tickmarks
+ */
+ } else if (tickmarks == null) {
+
+ /**
+ * Unknown tickmark type
+ */
+ } else {
+ alert('[SCATTER] (' + this.id + ') Unknown tickmark style: ' + tickmarks );
+ }
+ }
+
+ /**
+ * Add the tickmark to the coords array
+ */
+ if ( this.Get('chart.boxplot')
+ && typeof(y0) == 'number'
+ && typeof(y1) == 'number'
+ && typeof(y2) == 'number'
+ && typeof(y3) == 'number'
+ && typeof(y4) == 'number') {
+
+ x = [x - halfBoxWidth, x + halfBoxWidth];
+ y = [y0 + this.gutterTop, y1 + this.gutterTop, y2 + this.gutterTop, y3 + this.gutterTop, y4 + this.gutterTop];
+
+ }
+
+ coords.push([x, y, tooltip]);
+ }
+
+
+ /**
+ * Draws an optional line connecting the tick marks.
+ *
+ * @param i The index of the dataset to use
+ */
+ RGraph.Scatter.prototype.DrawLine = function (i)
+ {
+ if (this.Get('chart.line') && this.coords[i].length >= 2) {
+
+ this.context.lineCap = 'round';
+ this.context.lineJoin = 'round';
+ this.context.lineWidth = this.GetLineWidth(i);// i is the index of the set of coordinates
+ this.context.strokeStyle = this.Get('chart.line.colors')[i];
+ this.context.beginPath();
+
+ var len = this.coords[i].length;
+
+ for (var j=0; j<this.coords[i].length; ++j) {
+
+ var xPos = this.coords[i][j][0];
+ var yPos = this.coords[i][j][1];
+
+ if (j == 0) {
+ this.context.moveTo(xPos, yPos);
+ } else {
+
+ // Stepped?
+ var stepped = this.Get('chart.line.stepped');
+
+ if ( (typeof(stepped) == 'boolean' && stepped)
+ || (typeof(stepped) == 'object' && stepped[i])
+ ) {
+ this.context.lineTo(this.coords[i][j][0], this.coords[i][j - 1][1]);
+ }
+
+ this.context.lineTo(xPos, yPos);
+ }
+ }
+
+ this.context.stroke();
+ }
+
+ /**
+ * Set the linewidth back to 1
+ */
+ this.context.lineWidth = 1;
+ }
+
+
+ /**
+ * Returns the linewidth
+ *
+ * @param number i The index of the "line" (/set of coordinates)
+ */
+ RGraph.Scatter.prototype.GetLineWidth = function (i)
+ {
+ var linewidth = this.Get('chart.line.linewidth');
+
+ if (typeof(linewidth) == 'number') {
+ return linewidth;
+
+ } else if (typeof(linewidth) == 'object') {
+ if (linewidth[i]) {
+ return linewidth[i];
+ } else {
+ return linewidth[0];
+ }
+
+ alert('[SCATTER] Error! chart.linewidth should be a single number or an array of one or more numbers');
+ }
+ }
+
+
+ /**
+ * Draws vertical bars. Line chart doesn't use a horizontal scale, hence this function
+ * is not common
+ */
+ RGraph.Scatter.prototype.DrawVBars = function ()
+ {
+ var canvas = this.canvas;
+ var context = this.context;
+ var vbars = this.Get('chart.background.vbars');
+ var graphWidth = RGraph.GetWidth(this) - this.gutterLeft - this.gutterRight;
+
+ if (vbars) {
+
+ var xmax = this.Get('chart.xmax');
+
+ for (var i=0; i<vbars.length; ++i) {
+ var startX = ((vbars[i][0] / xmax) * graphWidth) + this.gutterLeft;
+ var width = (vbars[i][1] / xmax) * graphWidth;
+
+ context.beginPath();
+ context.fillStyle = vbars[i][2];
+ context.fillRect(startX, this.gutterTop, width, (RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom));
+ context.fill();
+ }
+ }
+ }
+
+
+
+
+
+ /**
+ * Draws in-graph labels.
+ *
+ * @param object obj The graph object
+ */
+ RGraph.Scatter.prototype.DrawInGraphLabels = function (obj)
+ {
+ var canvas = obj.canvas;
+ var context = obj.context;
+ var labels = obj.Get('chart.labels.ingraph');
+ var labels_processed = [];
+
+ // Defaults
+ var fgcolor = 'black';
+ var bgcolor = 'white';
+ var direction = 1;
+
+ if (!labels) {
+ return;
+ }
+
+ /**
+ * Preprocess the labels array. Numbers are expanded
+ */
+ for (var i=0; i<labels.length; ++i) {
+ if (typeof(labels[i]) == 'number') {
+ for (var j=0; j<labels[i]; ++j) {
+ labels_processed.push(null);
+ }
+ } else if (typeof(labels[i]) == 'string' || typeof(labels[i]) == 'object') {
+ labels_processed.push(labels[i]);
+
+ } else {
+ labels_processed.push('');
+ }
+ }
+
+ /**
+ * Turn off any shadow
+ */
+ RGraph.NoShadow(obj);
+
+ if (labels_processed && labels_processed.length > 0) {
+
+ var i=0;
+
+ for (var set=0; set<obj.coords.length; ++set) {
+ for (var point = 0; point<obj.coords[set].length; ++point) {
+ if (labels_processed[i]) {
+ var x = obj.coords[set][point][0];
+ var y = obj.coords[set][point][1];
+ var length = typeof(labels_processed[i][4]) == 'number' ? labels_processed[i][4] : 25;
+
+ var text_x = x;
+ var text_y = y - 5 - length;
+
+ context.moveTo(x, y - 5);
+ context.lineTo(x, y - 5 - length);
+
+ context.stroke();
+ context.beginPath();
+
+ // This draws the arrow
+ context.moveTo(x, y - 5);
+ context.lineTo(x - 3, y - 10);
+ context.lineTo(x + 3, y - 10);
+ context.closePath();
+
+
+ context.beginPath();
+
+ // Fore ground color
+ context.fillStyle = (typeof(labels_processed[i]) == 'object' && typeof(labels_processed[i][1]) == 'string') ? labels_processed[i][1] : 'black';
+
+ RGraph.Text(context,
+ obj.Get('chart.text.font'),
+ obj.Get('chart.text.size'),
+ text_x,
+ text_y,
+ (typeof(labels_processed[i]) == 'object' && typeof(labels_processed[i][0]) == 'string') ? labels_processed[i][0] : labels_processed[i],
+ 'bottom',
+ 'center',
+ true,
+ null,
+ (typeof(labels_processed[i]) == 'object' && typeof(labels_processed[i][2]) == 'string') ? labels_processed[i][2] : 'white');
+ context.fill();
+ }
+
+ i++;
+ }
+ }
+ }
+ }
+
+
+ /**
+ * This function makes it much easier to get the (if any) point that is currently being hovered over.
+ *
+ * @param object e The event object
+ */
+ RGraph.Scatter.prototype.getPoint = function (e)
+ {
+ var canvas = e.target;
+ var obj = canvas.__object__;
+ var context = obj.context;
+ var mouseXY = RGraph.getMouseXY(e);
+ var mouseX = mouseXY[0];
+ var mouseY = mouseXY[1];
+ var overHotspot = false;
+ var offset = obj.Get('chart.tooltips.hotspot'); // This is how far the hotspot extends
+
+ for (var set=0; set<obj.coords.length; ++set) {
+ for (var i=0; i<obj.coords[set].length; ++i) {
+
+ var xCoord = obj.coords[set][i][0];
+ var yCoord = obj.coords[set][i][1];
+
+ if (typeof(yCoord) == 'number') {
+ if (mouseX <= (xCoord + offset) &&
+ mouseX >= (xCoord - offset) &&
+ mouseY <= (yCoord + offset) &&
+ mouseY >= (yCoord - offset)) {
+
+ return [xCoord, yCoord, set, i, obj.data[set][i][3]];
+ }
+ } else {
+
+ var mark = obj.data[set][i];
+
+
+ /**
+ * Determine the width
+ */
+ var width = obj.Get('chart.boxplot.width');
+
+ if (typeof(mark[1][7]) == 'number') {
+ width = mark[1][7];
+ }
+
+ if ( typeof(xCoord) == 'object'
+ && mouseX > xCoord[0]
+ && mouseX < xCoord[1]
+ && mouseY < yCoord[3]
+ && mouseY > yCoord[1]
+ ) {
+
+ return [[xCoord[0], xCoord[1] - xCoord[0]], [yCoord[1], yCoord[3] - yCoord[1]], set, i, obj.data[set][i][3]];
+ }
+ }
+ }
+ }
+ }
+
+
+ /**
+ * Draws the above line labels
+ */
+ RGraph.Scatter.prototype.DrawAboveLabels = function ()
+ {
+ var context = this.context;
+ var size = this.Get('chart.labels.above.size');
+ var font = this.Get('chart.text.font');
+ var units_pre = this.Get('chart.units.pre');
+ var units_post = this.Get('chart.units.post');
+
+
+ for (var set=0; set<this.coords.length; ++set) {
+ for (var point=0; point<this.coords[set].length; ++point) {
+
+ var x_val = this.data[set][point][0];
+ var y_val = this.data[set][point][1];
+
+
+ var x_pos = this.coords[set][point][0];
+ var y_pos = this.coords[set][point][1];
+
+ RGraph.Text(context,
+ font,
+ size,
+ x_pos,
+ y_pos - 5 - size,
+ x_val.toFixed(this.Get('chart.labels.above.decimals')) + ', ' + y_val.toFixed(this.Get('chart.labels.above.decimals')),
+ 'center',
+ 'center',
+ true,
+ null,
+ 'rgba(255, 255, 255, 0.7)');
+ }
+ }
+ } \ No newline at end of file