--- /dev/null
+(function(){
+ "use strict";
+
+ var root = this,
+ Chart = root.Chart,
+ helpers = Chart.helpers;
+
+
+
+ Chart.Type.extend({
+ name: "Radar",
+ defaults:{
+ //Boolean - Whether to show lines for each scale point
+ scaleShowLine : true,
+
+ //Boolean - Whether we show the angle lines out of the radar
+ angleShowLineOut : true,
+
+ //Boolean - Whether to show labels on the scale
+ scaleShowLabels : false,
+
+ // Boolean - Whether the scale should begin at zero
+ scaleBeginAtZero : true,
+
+ //String - Colour of the angle line
+ angleLineColor : "rgba(0,0,0,.1)",
+
+ //Number - Pixel width of the angle line
+ angleLineWidth : 1,
+
+ //String - Point label font declaration
+ pointLabelFontFamily : "'Arial'",
+
+ //String - Point label font weight
+ pointLabelFontStyle : "normal",
+
+ //Number - Point label font size in pixels
+ pointLabelFontSize : 10,
+
+ //String - Point label font colour
+ pointLabelFontColor : "#666",
+
+ //Boolean - Whether to show a dot for each point
+ pointDot : true,
+
+ //Number - Radius of each point dot in pixels
+ pointDotRadius : 3,
+
+ //Number - Pixel width of point dot stroke
+ pointDotStrokeWidth : 1,
+
+ //Number - amount extra to add to the radius to cater for hit detection outside the drawn point
+ pointHitDetectionRadius : 20,
+
+ //Boolean - Whether to show a stroke for datasets
+ datasetStroke : true,
+
+ //Number - Pixel width of dataset stroke
+ datasetStrokeWidth : 2,
+
+ //Boolean - Whether to fill the dataset with a colour
+ datasetFill : true,
+
+ //String - A legend template
+ legendTemplate : "<ul class=\"<%=name.toLowerCase()%>-legend\"><% for (var i=0; i<datasets.length; i++){%><li><span style=\"background-color:<%=datasets[i].strokeColor%>\"><%if(datasets[i].label){%><%=datasets[i].label%><%}%></span></li><%}%></ul>"
+
+ },
+
+ initialize: function(data){
+ this.PointClass = Chart.Point.extend({
+ strokeWidth : this.options.pointDotStrokeWidth,
+ radius : this.options.pointDotRadius,
+ display: this.options.pointDot,
+ hitDetectionRadius : this.options.pointHitDetectionRadius,
+ ctx : this.chart.ctx
+ });
+
+ this.datasets = [];
+
+ this.buildScale(data);
+
+ //Set up tooltip events on the chart
+ if (this.options.showTooltips){
+ helpers.bindEvents(this, this.options.tooltipEvents, function(evt){
+ var activePointsCollection = (evt.type !== 'mouseout') ? this.getPointsAtEvent(evt) : [];
+
+ this.eachPoints(function(point){
+ point.restore(['fillColor', 'strokeColor']);
+ });
+ helpers.each(activePointsCollection, function(activePoint){
+ activePoint.fillColor = activePoint.highlightFill;
+ activePoint.strokeColor = activePoint.highlightStroke;
+ });
+
+ this.showTooltip(activePointsCollection);
+ });
+ }
+
+ //Iterate through each of the datasets, and build this into a property of the chart
+ helpers.each(data.datasets,function(dataset){
+
+ var datasetObject = {
+ label: dataset.label || null,
+ fillColor : dataset.fillColor,
+ strokeColor : dataset.strokeColor,
+ pointColor : dataset.pointColor,
+ pointStrokeColor : dataset.pointStrokeColor,
+ points : []
+ };
+
+ this.datasets.push(datasetObject);
+
+ helpers.each(dataset.data,function(dataPoint,index){
+ //Add a new point for each piece of data, passing any required data to draw.
+ var pointPosition;
+ if (!this.scale.animation){
+ pointPosition = this.scale.getPointPosition(index, this.scale.calculateCenterOffset(dataPoint));
+ }
+ datasetObject.points.push(new this.PointClass({
+ value : dataPoint,
+ label : data.labels[index],
+ datasetLabel: dataset.label,
+ x: (this.options.animation) ? this.scale.xCenter : pointPosition.x,
+ y: (this.options.animation) ? this.scale.yCenter : pointPosition.y,
+ strokeColor : dataset.pointStrokeColor,
+ fillColor : dataset.pointColor,
+ highlightFill : dataset.pointHighlightFill || dataset.pointColor,
+ highlightStroke : dataset.pointHighlightStroke || dataset.pointStrokeColor
+ }));
+ },this);
+
+ },this);
+
+ this.render();
+ },
+ eachPoints : function(callback){
+ helpers.each(this.datasets,function(dataset){
+ helpers.each(dataset.points,callback,this);
+ },this);
+ },
+
+ getPointsAtEvent : function(evt){
+ var mousePosition = helpers.getRelativePosition(evt),
+ fromCenter = helpers.getAngleFromPoint({
+ x: this.scale.xCenter,
+ y: this.scale.yCenter
+ }, mousePosition);
+
+ var anglePerIndex = (Math.PI * 2) /this.scale.valuesCount,
+ pointIndex = Math.round((fromCenter.angle - Math.PI * 1.5) / anglePerIndex),
+ activePointsCollection = [];
+
+ // If we're at the top, make the pointIndex 0 to get the first of the array.
+ if (pointIndex >= this.scale.valuesCount || pointIndex < 0){
+ pointIndex = 0;
+ }
+
+ if (fromCenter.distance <= this.scale.drawingArea){
+ helpers.each(this.datasets, function(dataset){
+ activePointsCollection.push(dataset.points[pointIndex]);
+ });
+ }
+
+ return activePointsCollection;
+ },
+
+ buildScale : function(data){
+ this.scale = new Chart.RadialScale({
+ display: this.options.showScale,
+ fontStyle: this.options.scaleFontStyle,
+ fontSize: this.options.scaleFontSize,
+ fontFamily: this.options.scaleFontFamily,
+ fontColor: this.options.scaleFontColor,
+ showLabels: this.options.scaleShowLabels,
+ showLabelBackdrop: this.options.scaleShowLabelBackdrop,
+ backdropColor: this.options.scaleBackdropColor,
+ backdropPaddingY : this.options.scaleBackdropPaddingY,
+ backdropPaddingX: this.options.scaleBackdropPaddingX,
+ lineWidth: (this.options.scaleShowLine) ? this.options.scaleLineWidth : 0,
+ lineColor: this.options.scaleLineColor,
+ angleLineColor : this.options.angleLineColor,
+ angleLineWidth : (this.options.angleShowLineOut) ? this.options.angleLineWidth : 0,
+ // Point labels at the edge of each line
+ pointLabelFontColor : this.options.pointLabelFontColor,
+ pointLabelFontSize : this.options.pointLabelFontSize,
+ pointLabelFontFamily : this.options.pointLabelFontFamily,
+ pointLabelFontStyle : this.options.pointLabelFontStyle,
+ height : this.chart.height,
+ width: this.chart.width,
+ xCenter: this.chart.width/2,
+ yCenter: this.chart.height/2,
+ ctx : this.chart.ctx,
+ templateString: this.options.scaleLabel,
+ labels: data.labels,
+ valuesCount: data.datasets[0].data.length
+ });
+
+ this.scale.setScaleSize();
+ this.updateScaleRange(data.datasets);
+ this.scale.buildYLabels();
+ },
+ updateScaleRange: function(datasets){
+ var valuesArray = (function(){
+ var totalDataArray = [];
+ helpers.each(datasets,function(dataset){
+ if (dataset.data){
+ totalDataArray = totalDataArray.concat(dataset.data);
+ }
+ else {
+ helpers.each(dataset.points, function(point){
+ totalDataArray.push(point.value);
+ });
+ }
+ });
+ return totalDataArray;
+ })();
+
+
+ var scaleSizes = (this.options.scaleOverride) ?
+ {
+ steps: this.options.scaleSteps,
+ stepValue: this.options.scaleStepWidth,
+ min: this.options.scaleStartValue,
+ max: this.options.scaleStartValue + (this.options.scaleSteps * this.options.scaleStepWidth)
+ } :
+ helpers.calculateScaleRange(
+ valuesArray,
+ helpers.min([this.chart.width, this.chart.height])/2,
+ this.options.scaleFontSize,
+ this.options.scaleBeginAtZero,
+ this.options.scaleIntegersOnly
+ );
+
+ helpers.extend(
+ this.scale,
+ scaleSizes
+ );
+
+ },
+ addData : function(valuesArray,label){
+ //Map the values array for each of the datasets
+ this.scale.valuesCount++;
+ helpers.each(valuesArray,function(value,datasetIndex){
+ var pointPosition = this.scale.getPointPosition(this.scale.valuesCount, this.scale.calculateCenterOffset(value));
+ this.datasets[datasetIndex].points.push(new this.PointClass({
+ value : value,
+ label : label,
+ datasetLabel: this.datasets[datasetIndex].label,
+ x: pointPosition.x,
+ y: pointPosition.y,
+ strokeColor : this.datasets[datasetIndex].pointStrokeColor,
+ fillColor : this.datasets[datasetIndex].pointColor
+ }));
+ },this);
+
+ this.scale.labels.push(label);
+
+ this.reflow();
+
+ this.update();
+ },
+ removeData : function(){
+ this.scale.valuesCount--;
+ this.scale.labels.shift();
+ helpers.each(this.datasets,function(dataset){
+ dataset.points.shift();
+ },this);
+ this.reflow();
+ this.update();
+ },
+ update : function(){
+ this.eachPoints(function(point){
+ point.save();
+ });
+ this.reflow();
+ this.render();
+ },
+ reflow: function(){
+ helpers.extend(this.scale, {
+ width : this.chart.width,
+ height: this.chart.height,
+ size : helpers.min([this.chart.width, this.chart.height]),
+ xCenter: this.chart.width/2,
+ yCenter: this.chart.height/2
+ });
+ this.updateScaleRange(this.datasets);
+ this.scale.setScaleSize();
+ this.scale.buildYLabels();
+ },
+ draw : function(ease){
+ var easeDecimal = ease || 1,
+ ctx = this.chart.ctx;
+ this.clear();
+ this.scale.draw();
+
+ helpers.each(this.datasets,function(dataset){
+
+ //Transition each point first so that the line and point drawing isn't out of sync
+ helpers.each(dataset.points,function(point,index){
+ if (point.hasValue()){
+ point.transition(this.scale.getPointPosition(index, this.scale.calculateCenterOffset(point.value)), easeDecimal);
+ }
+ },this);
+
+
+
+ //Draw the line between all the points
+ ctx.lineWidth = this.options.datasetStrokeWidth;
+ ctx.strokeStyle = dataset.strokeColor;
+ ctx.beginPath();
+ helpers.each(dataset.points,function(point,index){
+ if (index === 0){
+ ctx.moveTo(point.x,point.y);
+ }
+ else{
+ ctx.lineTo(point.x,point.y);
+ }
+ },this);
+ ctx.closePath();
+ ctx.stroke();
+
+ ctx.fillStyle = dataset.fillColor;
+ if(this.options.datasetFill){
+ ctx.fill();
+ }
+ //Now draw the points over the line
+ //A little inefficient double looping, but better than the line
+ //lagging behind the point positions
+ helpers.each(dataset.points,function(point){
+ if (point.hasValue()){
+ point.draw();
+ }
+ });
+
+ },this);
+
+ }
+
+ });
+
+
+
+
+
+}).call(this);
projects / soho-sigint.git / blobdiff