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/*** o-------------------------------------------------------------------------------o* | This file is part of the RGraph package. RGraph is Free software, licensed |* | under the MIT license - so it's free to use for all purposes. Extended |* | support is available if required and donations are always welcome! You can |* | read more here: |* | http://www.rgraph.net/support |* o-------------------------------------------------------------------------------o*/if (typeof(RGraph) == 'undefined') RGraph = {};/*** The rose chart constuctor** @param object canvas* @param array data*/RGraph.Rose = function (id, data){this.id = id;this.canvas = document.getElementById(typeof id === 'object' ? id.id : id);this.context = this.canvas.getContext('2d');this.data = data;this.canvas.__object__ = this;this.type = 'rose';this.isRGraph = true;this.uid = RGraph.CreateUID();this.canvas.uid = this.canvas.uid ? this.canvas.uid : RGraph.CreateUID();this.colorsParsed = false;this.coordsText = [];this.original_colors = [];/*** Compatibility with older browsers*/RGraph.OldBrowserCompat(this.context);this.centerx = 0;this.centery = 0;this.radius = 0;this.max = 0;this.angles = [];this.angles2 = [];this.properties = {'chart.background.axes': true,'chart.background.axes.color': 'black','chart.background.grid': true,'chart.background.grid.color': '#ccc','chart.background.grid.size': null,'chart.background.grid.spokes': null,'chart.background.grid.count': 5,'chart.centerx': null,'chart.centery': null,'chart.radius': null,'chart.angles.start': 0,'chart.colors': ['rgba(255,0,0,0.5)', 'rgba(255,255,0,0.5)', 'rgba(0,255,255,0.5)', 'rgb(0,255,0)', 'gray', 'blue', 'rgb(255,128,255)','green', 'pink', 'gray', 'aqua'],'chart.colors.sequential': false,'chart.colors.alpha': null,'chart.margin': 0,'chart.strokestyle': '#aaa','chart.gutter.left': 25,'chart.gutter.right': 25,'chart.gutter.top': 25,'chart.gutter.bottom': 25,'chart.title': '','chart.title.background': null,'chart.title.hpos': null,'chart.title.vpos': null,'chart.title.bold': true,'chart.title.font': null,'chart.title.x': null,'chart.title.y': null,'chart.title.halign': null,'chart.title.valign': null,'chart.labels': null,'chart.labels.position': 'center','chart.labels.axes': 'nsew','chart.labels.offset': 0,'chart.text.color': 'black','chart.text.font': 'Arial','chart.text.size': 10,'chart.key': null,'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': false,'chart.key.position.x': null,'chart.key.position.y': null,'chart.key.color.shape': 'square','chart.key.rounded': true,'chart.key.linewidth': 1,'chart.key.colors': null,'chart.key.interactive': false,'chart.key.interactive.highlight.chart.stroke': 'black','chart.key.interactive.highlight.chart.fill': 'rgba(255,255,255,0.7)','chart.key.interactive.highlight.label': 'rgba(255,0,0,0.2)','chart.key.text.color': 'black','chart.contextmenu': null,'chart.tooltips': null,'chart.tooltips.event': 'onclick','chart.tooltips.effect': 'fade','chart.tooltips.css.class': 'RGraph_tooltip','chart.tooltips.highlight': true,'chart.highlight.stroke': 'rgba(0,0,0,0)','chart.highlight.fill': 'rgba(255,255,255,0.7)','chart.annotatable': false,'chart.annotate.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.background': true,'chart.zoom.action': 'zoom','chart.resizable': false,'chart.resize.handle.adjust': [0,0],'chart.resize.handle.background': null,'chart.adjustable': false,'chart.ymax': null,'chart.ymin': 0,'chart.scale.decimals': null,'chart.scale.point': '.','chart.scale.thousand': ',','chart.variant': 'stacked','chart.exploded': 0,'chart.events.mousemove': null,'chart.events.click': null,'chart.animation.roundrobin.factor': 1,'chart.animation.roundrobin.radius': true,'chart.animation.grow.multiplier': 1,'chart.labels.count': 5}/*** Create the $ objects. In the case of non-equi-angular rose charts it actually creates too many $ objects,* but it doesn't matter.*/var linear_data = RGraph.array_linearize(this.data);for (var i=0; i<linear_data.length; ++i) {this["$" + i] = {}}/*** Translate half a pixel for antialiasing purposes - but only if it hasn't beeen* done already*/if (!this.canvas.__rgraph_aa_translated__) {this.context.translate(0.5,0.5);this.canvas.__rgraph_aa_translated__ = true;}///////////////////////////////// SHORT PROPERTIES /////////////////////////////////var RG = RGraph;var ca = this.canvas;var co = ca.getContext('2d');var prop = this.properties;//var $jq = jQuery;//////////////////////////////////// METHODS ////////////////////////////////////////*** A simple setter** @param string name The name of the property to set* @param string value The value of the property*/this.Set = function (name, value){/*** This should be done first - prepend the propertyy name with "chart." if necessary*/if (name.substr(0,6) != 'chart.') {name = 'chart.' + name;}prop[name.toLowerCase()] = value;return this;}/*** A simple getter** @param string name The name of the property to get*/this.Get = function (name){/*** This should be done first - prepend the property name with "chart." if necessary*/if (name.substr(0,6) != 'chart.') {name = 'chart.' + name;}return prop[name.toLowerCase()];}/*** This method draws the rose chart*/this.Draw = function (){/*** Fire the onbeforedraw event*/RG.FireCustomEvent(this, 'onbeforedraw');/*** This doesn't affect the chart, but is used for compatibility*/this.gutterLeft = prop['chart.gutter.left'];this.gutterRight = prop['chart.gutter.right'];this.gutterTop = prop['chart.gutter.top'];this.gutterBottom = prop['chart.gutter.bottom'];// Calculate the radiusthis.radius = (Math.min(ca.width - this.gutterLeft - this.gutterRight, ca.height - this.gutterTop - this.gutterBottom) / 2);this.centerx = ((ca.width - this.gutterLeft - this.gutterRight) / 2) + this.gutterLeft;this.centery = ((ca.height - this.gutterTop - this.gutterBottom) / 2) + this.gutterTop;this.angles = [];this.angles2 = [];this.total = 0;this.startRadians = prop['chart.angles.start'];/*** Change the centerx marginally if the key is defined*/if (prop['chart.key'] && prop['chart.key'].length > 0 && prop['chart.key'].length >= 3) {this.centerx = this.centerx - this.gutterRight + 5;}// User specified radius, centerx and centeryif (typeof(prop['chart.centerx']) == 'number') this.centerx = prop['chart.centerx'];if (typeof(prop['chart.centery']) == 'number') this.centery = prop['chart.centery'];if (typeof(prop['chart.radius']) == 'number') this.radius = prop['chart.radius'];/*** Parse the colors for gradients. Its down here so that the center X/Y can be used*/if (!this.colorsParsed) {this.parseColors();// Don't want to do this againthis.colorsParsed = true;}this.DrawBackground();this.DrawRose();this.DrawLabels();/*** Setup the context menu if required*/if (prop['chart.contextmenu']) {RG.ShowContext(this);}/*** This function enables resizing*/if (prop['chart.resizable']) {RG.AllowResizing(this);}/*** This function enables adjusting*/if (prop['chart.adjustable']) {RG.AllowAdjusting(this);}/*** This installs the event listeners*/RG.InstallEventListeners(this);/*** Fire the RGraph ondraw event*/RG.FireCustomEvent(this, 'ondraw');return this;}/*** This method draws the rose charts background*/this.DrawBackground = function (){co.lineWidth = 1;// Draw the background grey circles/spokesif (prop['chart.background.grid']) {if (typeof(prop['chart.background.grid.count']) == 'number') {prop['chart.background.grid.size'] = this.radius / prop['chart.background.grid.count'];}co.beginPath();co.strokeStyle = prop['chart.background.grid.color'];// Radius must be greater than 0 for Opera to workfor (var i=prop['chart.background.grid.size']; i<=this.radius; i+=prop['chart.background.grid.size']) {// Hmmm... This is questionableco.moveTo(this.centerx + i, this.centery);// Radius must be greater than 0 for Opera to workco.arc(this.centerx,this.centery,i,0,TWOPI,false);}co.stroke();// Draw the background lines that go from the center outwardsco.beginPath();if (typeof(prop['chart.background.grid.spokes']) == 'number') {var num = (360 / prop['chart.background.grid.spokes']);for (var i=num; i<=360; i+=num) {// Radius must be greater than 0 for Opera to workco.arc(this.centerx,this.centery,this.radius,((i / (180 / PI)) - HALFPI) + this.startRadians,(((i + 0.0001) / (180 / PI)) - HALFPI) + this.startRadians,false);co.lineTo(this.centerx, this.centery);}} else {for (var i=15; i<=360; i+=15) {// Radius must be greater than 0 for Opera to workco.arc(this.centerx,this.centery,this.radius,(i / (180/ PI)) - HALFPI,((i + 0.0001) / (180/ PI)) - HALFPI,false);co.lineTo(this.centerx, this.centery);}}co.stroke();}if (prop['chart.background.axes']) {co.beginPath();co.strokeStyle = prop['chart.background.axes.color'];// Draw the X axisco.moveTo(this.centerx - this.radius, Math.round(this.centery) );co.lineTo(this.centerx + this.radius, Math.round(this.centery) );// Draw the X endsco.moveTo(Math.round(this.centerx - this.radius), this.centery - 5);co.lineTo(Math.round(this.centerx - this.radius), this.centery + 5);co.moveTo(Math.round(this.centerx + this.radius), this.centery - 5);co.lineTo(Math.round(this.centerx + this.radius), this.centery + 5);// Draw the X check marksfor (var i=(this.centerx - this.radius); i<(this.centerx + this.radius); i+=(this.radius / 5)) {co.moveTo(Math.round(i), this.centery - 3);co.lineTo(Math.round(i), this.centery + 3.5);}// Draw the Y check marksfor (var i=(this.centery - this.radius); i<(this.centery + this.radius); i+=(this.radius / 5)) {co.moveTo(this.centerx - 3, Math.round(i));co.lineTo(this.centerx + 3, Math.round(i));}// Draw the Y axisco.moveTo(Math.round(this.centerx), this.centery - this.radius);co.lineTo(Math.round(this.centerx), this.centery + this.radius);// Draw the Y endsco.moveTo(this.centerx - 5, Math.round(this.centery - this.radius));co.lineTo(this.centerx + 5, Math.round(this.centery - this.radius));co.moveTo(this.centerx - 5, Math.round(this.centery + this.radius));co.lineTo(this.centerx + 5, Math.round(this.centery + this.radius));// Stroke itco.closePath();co.stroke();}}/*** This method draws the data on the graph*/this.DrawRose = function (){var max = 0;var data = this.data;var margin = RGraph.degrees2Radians(prop['chart.margin']);// Must be at least two data points//if (data.length < 2) {// alert('[ROSE] Must be at least two data points! [' + data + ']');// return;//}// Work out the maximum value and the sumif (RG.is_null(prop['chart.ymax'])) {// Work out the maxfor (var i=0; i<data.length; ++i) {if (typeof(data[i]) == 'number') {max = Math.max(max, data[i]);} else if (typeof(data[i]) == 'object' && prop['chart.variant'] == 'non-equi-angular') {max = Math.max(max, data[i][0]);// Fallback is stacked} else {max = Math.max(max, RG.array_sum(data[i]));}}this.scale2 = RG.getScale2(this, {'max':max,'min':0,'scale.thousand':prop['chart.scale.thousand'],'scale.point':prop['chart.scale.point'],'scale.decimals':prop['chart.scale.decimals'],'ylabels.count':prop['chart.labels.count'],'scale.round':prop['chart.scale.round'],'units.pre': prop['chart.units.pre'],'units.post': prop['chart.units.post']});this.max = this.scale2.max;} else {var ymax = prop['chart.ymax'];this.scale2 = RG.getScale2(this, {'max':ymax,'strict':true,'scale.thousand':prop['chart.scale.thousand'],'scale.point':prop['chart.scale.point'],'scale.decimals':prop['chart.scale.decimals'],'ylabels.count':prop['chart.labels.count'],'scale.round':prop['chart.scale.round'],'units.pre': prop['chart.units.pre'],'units.post': prop['chart.units.post']});this.max = this.scale2.max}this.sum = RG.array_sum(data);// Move to the centreco.moveTo(this.centerx, this.centery);co.stroke(); // Stroke the background so it stays grey// Transparencyif (prop['chart.colors.alpha']) {co.globalAlpha = prop['chart.colors.alpha'];}/******************************************************** A non-equi-angular Rose chart*******************************************************/if (typeof(prop['chart.variant']) == 'string' && prop['chart.variant'] == 'non-equi-angular') {/******************************************************** NON-EQUI-ANGULAR GOES HERE*******************************************************/var total=0;for (var i=0; i<data.length; ++i) {total += data[i][1];}for (var i=0; i<this.data.length; ++i) {var segmentRadians = ((this.data[i][1] / total) * TWOPI);var radius = ((this.data[i][0] - prop['chart.ymin']) / (this.max - prop['chart.ymin'])) * this.radius;radius = radius * prop['chart.animation.grow.multiplier'];co.strokeStyle = prop['chart.strokestyle'];co.fillStyle = prop['chart.colors'][0];if (prop['chart.colors.sequential']) {co.fillStyle = prop['chart.colors'][i];}co.beginPath(); // Begin the segmentvar startAngle = (this.startRadians * prop['chart.animation.roundrobin.factor']) - HALFPI + margin;var endAngle = ((this.startRadians + segmentRadians) * prop['chart.animation.roundrobin.factor']) - HALFPI - margin;var exploded = this.getexploded(i, startAngle, endAngle, prop['chart.exploded']);var explodedX = exploded[0];var explodedY = exploded[1];co.arc(this.centerx + explodedX,this.centery + explodedY,prop['chart.animation.roundrobin.radius'] ? radius * prop['chart.animation.roundrobin.factor'] : radius,startAngle,endAngle,0);co.lineTo(this.centerx + explodedX, this.centery + explodedY);co.closePath(); // End the segmentco.stroke();co.fill();// Store the start and end anglesthis.angles.push(gg = [startAngle,endAngle,0,radius,this.centerx + explodedX,this.centery + explodedY]);this.startRadians += segmentRadians;}} else {var sequentialColorIndex = 0;/******************************************************** Draw regular segments here*******************************************************/for (var i=0; i<this.data.length; ++i) {co.strokeStyle = prop['chart.strokestyle'];co.fillStyle = prop['chart.colors'][0];/******************************************************** This allows sequential colors*******************************************************/if (prop['chart.colors.sequential']) {co.fillStyle = prop['chart.colors'][i];}var segmentRadians = (1 / this.data.length) * TWOPI;if (typeof(this.data[i]) == 'number') {co.beginPath(); // Begin the segmentvar radius = ((this.data[i] - prop['chart.ymin']) / (this.max - prop['chart.ymin'])) * this.radius;radius = radius * prop['chart.animation.grow.multiplier'];var startAngle = (this.startRadians * prop['chart.animation.roundrobin.factor']) - HALFPI + margin;var endAngle = (this.startRadians * prop['chart.animation.roundrobin.factor']) + (segmentRadians * prop['chart.animation.roundrobin.factor']) - HALFPI - margin;var exploded = this.getexploded(i, startAngle, endAngle, prop['chart.exploded']);var explodedX = exploded[0];var explodedY = exploded[1];co.arc(this.centerx + explodedX,this.centery + explodedY,prop['chart.animation.roundrobin.radius'] ? radius * prop['chart.animation.roundrobin.factor'] : radius,startAngle,endAngle,0);co.lineTo(this.centerx + explodedX, this.centery + explodedY);co.closePath(); // End the segmentco.stroke();co.fill();if (endAngle == 0) {//endAngle = TWOPI;}// Store the start and end anglesthis.angles.push([startAngle,endAngle,0,radius * prop['chart.animation.roundrobin.factor'],this.centerx + explodedX,this.centery + explodedY]);/******************************************************** Draw a stacked segment*******************************************************/} else if (typeof(this.data[i]) == 'object') {var margin = prop['chart.margin'] / (180 / PI);// Initialise the angles2 array so there's no undefined errorif (!this.angles2[i]) {this.angles2[i] = [];}for (var j=0; j<this.data[i].length; ++j) {var startAngle = (this.startRadians * prop['chart.animation.roundrobin.factor']) - HALFPI + margin;var endAngle = (this.startRadians * prop['chart.animation.roundrobin.factor'])+ (segmentRadians * prop['chart.animation.roundrobin.factor']) - HALFPI - margin;var exploded = this.getexploded(i, startAngle, endAngle, prop['chart.exploded']);var explodedX = exploded[0];var explodedY = exploded[1];co.fillStyle = prop['chart.colors'][j];// This facilitates sequential color supportif (prop['chart.colors.sequential']) {co.fillStyle = prop['chart.colors'][sequentialColorIndex++];}if (j == 0) {co.beginPath(); // Begin the segmentvar startRadius = 0;var endRadius = ((this.data[i][j] - prop['chart.ymin']) / (this.max - prop['chart.ymin'])) * this.radius;endRadius = endRadius * prop['chart.animation.grow.multiplier'];co.arc(this.centerx + explodedX,this.centery + explodedY,prop['chart.animation.roundrobin.radius'] ? endRadius * prop['chart.animation.roundrobin.factor'] : endRadius,startAngle,endAngle,0);co.lineTo(this.centerx + explodedX, this.centery + explodedY);co.closePath(); // End the segmentco.stroke();co.fill();this.angles.push([startAngle,endAngle,0,endRadius * prop['chart.animation.roundrobin.factor'],this.centerx + explodedX,this.centery + explodedY]);this.angles2[i].push([startAngle,endAngle,0,endRadius * prop['chart.animation.roundrobin.factor'],this.centerx + explodedX,this.centery + explodedY]);} else {co.beginPath(); // Begin the segmentvar startRadius = endRadius; // This comes from the prior iteration of this loopvar endRadius = (((this.data[i][j] - prop['chart.ymin']) / (this.max - prop['chart.ymin'])) * this.radius) + startRadius;endRadius = endRadius * prop['chart.animation.grow.multiplier'];co.arc(this.centerx + explodedX,this.centery + explodedY,startRadius * prop['chart.animation.roundrobin.factor'],startAngle,endAngle,0);co.arc(this.centerx + explodedX,this.centery + explodedY,endRadius * prop['chart.animation.roundrobin.factor'],endAngle,startAngle,true);co.closePath(); // End the segmentco.stroke();co.fill();this.angles.push([startAngle,endAngle,startRadius * prop['chart.animation.roundrobin.factor'],endRadius * prop['chart.animation.roundrobin.factor'],this.centerx + explodedX,this.centery + explodedY]);this.angles2[i].push([startAngle,endAngle,startRadius * prop['chart.animation.roundrobin.factor'],endRadius * prop['chart.animation.roundrobin.factor'],this.centerx + explodedX,this.centery + explodedY]);}}}this.startRadians += segmentRadians;}}// Turn off the transparencyif (prop['chart.colors.alpha']) {co.globalAlpha = 1;}// Draw the title if any has been setif (prop['chart.title']) {RG.DrawTitle(this,prop['chart.title'],(ca.height / 2) - this.radius,this.centerx,prop['chart.title.size'] ? prop['chart.title.size'] : prop['chart.text.size'] + 2);}}/*** Unsuprisingly, draws the labels*/this.DrawLabels = function (){co.lineWidth = 1;var key = prop['chart.key'];if (key && key.length) {RG.DrawKey(this, key, prop['chart.colors']);}// Set the color to blackco.fillStyle = prop['chart.text.color'];co.strokeStyle = 'black';var radius = this.radius;var font = prop['chart.text.font'];var size = prop['chart.text.size'];var axes = prop['chart.labels.axes'].toLowerCase();var decimals = prop['chart.scale.decimals'];var units_pre = prop['chart.units.pre'];var units_post = prop['chart.units.post'];var centerx = this.centerx;var centery = this.centery;// Draw any circular labelsif (typeof(prop['chart.labels']) == 'object' && prop['chart.labels']) {this.DrawCircularLabels(co, prop['chart.labels'], font, size, radius + 10);}// Size can be specified seperately for the scale nowif (typeof(prop['chart.text.size.scale']) == 'number') {size = prop['chart.text.size.scale'];}var color = 'rgba(255,255,255,0.8)';// The "North" axis labelsif (axes.indexOf('n') > -1) {for (var i=0; i<prop['chart.labels.count']; ++i) {RG.Text2(this, {'font':font,'size':size,'x':centerx,'y':centery - (radius * ((i+1) / prop['chart.labels.count'])),'text':this.scale2.labels[i],'valign':'center','halign':'center','bounding':true,'boundingFill':color,'tag': 'scale'});}}// The "South" axis labelsif (axes.indexOf('s') > -1) {for (var i=0; i<prop['chart.labels.count']; ++i) {RG.Text2(this, {'font':font,'size':size,'x':centerx,'y':centery + (radius * ((i+1) / prop['chart.labels.count'])),'text':this.scale2.labels[i],'valign':'center','halign':'center','bounding':true,'boundingFill':color,'tag': 'scale'});}}// The "East" axis labelsif (axes.indexOf('e') > -1) {for (var i=0; i<prop['chart.labels.count']; ++i) {RG.Text2(this, {'font':font,'size':size,'x':centerx + (radius * ((i+1) / prop['chart.labels.count'])),'y':centery,'text':this.scale2.labels[i],'valign':'center','halign':'center','bounding':true,'boundingFill':color,'tag': 'scale'});}}// The "West" axis labelsif (axes.indexOf('w') > -1) {for (var i=0; i<prop['chart.labels.count']; ++i) {RG.Text2(this, {'font':font,'size':size,'x':centerx - (radius * ((i+1) / prop['chart.labels.count'])),'y':centery,'text':this.scale2.labels[i],'valign':'center','halign':'center','bounding':true,'boundingFill':color,'tag': 'scale'});}}if (axes.length > 0) {RG.Text2(this, {'font':font,'size':size,'x':centerx,'y':centery,'text':typeof(prop['chart.ymin']) == 'number' ? RG.number_format(this, Number(prop['chart.ymin']).toFixed(prop['chart.scale.decimals']), units_pre, units_post) : '0','valign':'center','halign':'center','bounding':true,'boundingFill':color,'tag': 'scale'});}}/*** Draws the circular labels that go around the charts** @param labels array The labels that go around the chart*/this.DrawCircularLabels = function (co, labels, font, size, radius){var variant = prop['chart.variant'];var position = prop['chart.labels.position'];var radius = radius + 5 + prop['chart.labels.offset'];var centerx = this.centerx;var centery = this.centery;for (var i=0; i<labels.length; ++i) {if (typeof(variant) == 'string' && variant == 'non-equi-angular') {var a = Number(this.angles[i][0]) + ((this.angles[i][1] - this.angles[i][0]) / 2);} else {var a = (TWOPI / labels.length) * (i + 1) - (TWOPI / (labels.length * 2));var a = a - HALFPI + (prop['chart.labels.position'] == 'edge' ? ((TWOPI / labels.length) / 2) : 0);}var x = centerx + (Math.cos(a) * radius);var y = centery + (Math.sin(a) * radius);// Horizontal alignmentif (x > centerx) {halign = 'left';} else if (Math.round(x) == centerx) {halign = 'center';} else {halign = 'right';}RG.Text2(this, {'font':font,'size':size,'x':x,'y':y,'text':String(labels[i]),'halign':halign,'valign':'center','tag': 'labels'});}}/*** This function is for use with circular graph types, eg the Pie or Rose. Pass it your event object* and it will pass you back the corresponding segment details as an array:** [x, y, r, startAngle, endAngle]** Angles are measured in degrees, and are measured from the "east" axis (just like the canvas).** @param object e Your event object*/this.getShape =this.getSegment = function (e){RG.FixEventObject(e);var angles = this.angles;var ret = [];/*** Go through all of the angles checking each one*/for (var i=0; i<angles.length ; ++i) {var angleStart = angles[i][0];var angleEnd = angles[i][1];var radiusStart = angles[i][2];var radiusEnd = angles[i][3];var centerX = angles[i][4];var centerY = angles[i][5];var mouseXY = RG.getMouseXY(e);var mouseX = mouseXY[0] - centerX;var mouseY = mouseXY[1] - centerY;// New click testing (the 0.01 is there because Opera doesn't like 0 as the radius)co.beginPath();co.arc(centerX, centerY, radiusStart ? radiusStart : 0.01, angleStart, angleEnd, false);co.arc(centerX, centerY, radiusEnd, angleEnd, angleStart, true);co.closePath();// No stroke() or fill()if (co.isPointInPath(mouseXY[0], mouseXY[1])) {angles[i][6] = i;if (RG.parseTooltipText) {var tooltip = RG.parseTooltipText(prop['chart.tooltips'], angles[i][6]);}// Add the textual keysangles[i]['object'] = this;angles[i]['x'] = angles[i][4];angles[i]['y'] = angles[i][5];angles[i]['angle.start'] = angles[i][0];angles[i]['angle.end'] = angles[i][1];angles[i]['radius.start'] = angles[i][2];angles[i]['radius.end'] = angles[i][3];angles[i]['index'] = angles[i][6];angles[i]['tooltip'] = tooltip ? tooltip : null;return angles[i];}}return null;}/*** Returns any exploded for a particular segment*/this.getexploded = function (index, startAngle, endAngle, exploded){var explodedx, explodedy;/*** Retrieve any exploded - the exploded can be an array of numbers or a single number* (which is applied to all segments)*/if (typeof(exploded) == 'object' && typeof(exploded[index]) == 'number') {explodedx = Math.cos(((endAngle - startAngle) / 2) + startAngle) * exploded[index];explodedy = Math.sin(((endAngle - startAngle) / 2) + startAngle) * exploded[index];} else if (typeof(exploded) == 'number') {explodedx = Math.cos(((endAngle - startAngle) / 2) + startAngle) * exploded;explodedy = Math.sin(((endAngle - startAngle) / 2) + startAngle) * exploded;} else {explodedx = 0;explodedy = 0;}return [explodedx, explodedy];}/*** This function facilitates the installation of tooltip event listeners if* tooltips are defined.*/this.AllowTooltips = function (){// Preload any tooltip images that are used in the tooltipsRG.PreLoadTooltipImages(this);/*** This installs the window mousedown event listener that lears any* highlight that may be visible.*/RG.InstallWindowMousedownTooltipListener(this);/*** This installs the canvas mousemove event listener. This function* controls the pointer shape.*/RG.InstallCanvasMousemoveTooltipListener(this);/*** This installs the canvas mouseup event listener. This is the* function that actually shows the appropriate tooltip (if any).*/RG.InstallCanvasMouseupTooltipListener(this);}/*** Each object type has its own Highlight() function which highlights the appropriate shape** @param object shape The shape to highlight*/this.Highlight = function (shape){if (prop['chart.tooltips.highlight']) {// Add the new segment highlightco.beginPath();co.strokeStyle = prop['chart.highlight.stroke'];co.fillStyle = prop['chart.highlight.fill'];co.arc(shape['x'], shape['y'], shape['radius.end'], shape['angle.start'], shape['angle.end'], false);if (shape['radius.start'] > 0) {co.arc(shape['x'], shape['y'], shape['radius.start'], shape['angle.end'], shape['angle.start'], true);} else {co.lineTo(shape['x'], shape['y']);}co.closePath();co.stroke();co.fill();}}/*** The getObjectByXY() worker method. Don't call this call:** RGraph.ObjectRegistry.getObjectByXY(e)** @param object e The event object*/this.getObjectByXY = function (e){var mouseXY = RGraph.getMouseXY(e);// Work out the radiusvar radius = RG.getHypLength(this.centerx, this.centery, mouseXY[0], mouseXY[1]);if (mouseXY[0] > (this.centerx - this.radius)&& mouseXY[0] < (this.centerx + this.radius)&& mouseXY[1] > (this.centery - this.radius)&& mouseXY[1] < (this.centery + this.radius)&& radius <= this.radius) {return this;}}/*** This function positions a tooltip when it is displayed** @param obj object The chart object* @param int x The X coordinate specified for the tooltip* @param int y The Y coordinate specified for the tooltip* @param objec tooltip The tooltips DIV element*/this.positionTooltip = function (obj, x, y, tooltip, idx){var coordX = obj.angles[idx][4];var coordY = obj.angles[idx][5];var angleStart = obj.angles[idx][0];var angleEnd = obj.angles[idx][1];var radius = ((obj.angles[idx][3] - obj.angles[idx][2]) / 2) + obj.angles[idx][2];var angleCenter = ((angleEnd - angleStart) / 2) + angleStart;var canvasXY = RG.getCanvasXY(obj.canvas);var gutterLeft = this.gutterLeft;var gutterTop = this.gutterTop;var width = tooltip.offsetWidth;var height = tooltip.offsetHeight;// By default any overflow is hiddentooltip.style.overflow = '';// The arrowvar img = new Image();img.src = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABEAAAAFCAYAAACjKgd3AAAARUlEQVQYV2NkQAN79+797+RkhC4M5+/bd47B2dmZEVkBCgcmgcsgbAaA9GA1BCSBbhAuA/AagmwQPgMIGgIzCD0M0AMMAEFVIAa6UQgcAAAAAElFTkSuQmCC';img.style.position = 'absolute';img.id = '__rgraph_tooltip_pointer__';img.style.top = (tooltip.offsetHeight - 2) + 'px';tooltip.appendChild(img);// Reposition the tooltip if at the edges:// LEFT edgeif ((canvasXY[0] + coordX + (Math.cos(angleCenter) * radius) - (width / 2)) < 10) {tooltip.style.left = (canvasXY[0] + coordX + (Math.cos(angleCenter) * radius)- (width * 0.1)) + 'px';tooltip.style.top = (canvasXY[1] + coordY + (Math.sin(angleCenter) * radius)- height - 5) + 'px';img.style.left = ((width * 0.1) - 8.5) + 'px';// RIGHT edge} else if ((canvasXY[0] + coordX + (Math.cos(angleCenter) * radius) + (width / 2)) > (document.body.offsetWidth - 10) ) {tooltip.style.left = (canvasXY[0] + coordX + (Math.cos(angleCenter) * radius) - (width * 0.9)) + 'px';tooltip.style.top = (canvasXY[1] + coordY + (Math.sin(angleCenter) * radius)- height - 5) + 'px';img.style.left = ((width * 0.9) - 8.5) + 'px';// Default positioning - CENTERED} else {tooltip.style.left = (canvasXY[0] + coordX + (Math.cos(angleCenter) * radius)- (width / 2)) + 'px';tooltip.style.top = (canvasXY[1] + coordY + (Math.sin(angleCenter) * radius)- height - 5) + 'px';img.style.left = ((width * 0.5) - 8.5) + 'px';}}/*** This method gives you the relevant radius for a particular value** @param number value The relevant value to get the radius for*/this.getRadius = function (value){// Range checking (the Rose minimum is always 0)if (value < 0 || value > this.max) {return null;}var r = (value / this.max) * this.radius;return r;}/*** This allows for easy specification of gradients*/this.parseColors = function (){for (var i=0; i<prop['chart.colors'].length; ++i) {prop['chart.colors'][i] = this.parseSingleColorForGradient(prop['chart.colors'][i]);}/*** Key colors*/if (!RG.is_null(prop['chart.key.colors'])) {for (var i=0; i<prop['chart.key.colors'].length; ++i) {prop['chart.key.colors'][i] = this.parseSingleColorForGradient(prop['chart.key.colors'][i]);}}prop['chart.text.color'] = this.parseSingleColorForGradient(prop['chart.text.color']);prop['chart.title.color'] = this.parseSingleColorForGradient(prop['chart.title.color']);prop['chart.highlight.fill'] = this.parseSingleColorForGradient(prop['chart.highlight.fill']);prop['chart.highlight.stroke'] = this.parseSingleColorForGradient(prop['chart.highlight.stroke']);}/*** This parses a single color value*/this.parseSingleColorForGradient = function (color){if (!color || typeof(color) != 'string') {return color;}if (color.match(/^gradient\((.*)\)$/i)) {var parts = RegExp.$1.split(':');// Create the gradient//var grad = context.createLinearGradient(0,0,canvas.width,0);var grad = co.createRadialGradient(this.centerx, this.centery, 0, this.centerx, this.centery, this.radius);var diff = 1 / (parts.length - 1);grad.addColorStop(0, RG.trim(parts[0]));for (var j=1; j<parts.length; ++j) {grad.addColorStop(j * diff, RG.trim(parts[j]));}}return grad ? grad : color;}/*** This function handles highlighting an entire data-series for the interactive* key** @param int index The index of the data series to be highlighted*/this.interactiveKeyHighlight = function (index){this.angles2.forEach(function (val, idx, arr){var segment = val[index];if (segment) {co.beginPath();co.lineWidth = 2;co.fillStyle = prop['chart.key.interactive.highlight.chart.fill'];co.strokeStyle = prop['chart.key.interactive.highlight.chart.stroke'];co.arc(segment[4], segment[5], segment[2], segment[0], segment[1], false);co.arc(segment[4], segment[5], segment[3], segment[1], segment[0], true);co.closePath();co.fill();co.stroke();}});}/*** Register this object*/RG.Register(this);}