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1 line
6.9 KiB
JavaScript
1 line
6.9 KiB
JavaScript
function TwoVarScatterplot(d){var b=10,f=7,e=10,c=8,a=5;this.log=function(){if(this.debugging&&console&&console.debug){var g=Array.prototype.slice.call(arguments);g.unshift(this.toString());console.debug.apply(console,g)}};this.log("new TwoVarScatterplot:",d);this.defaults={id:"TwoVarScatterplot",containerSelector:"body",maxDataPoints:30000,datapointSize:4,animDuration:500,xNumTicks:10,yNumTicks:10,xAxisLabelBumpY:40,yAxisLabelBumpX:-40,width:400,height:400,marginTop:50,marginRight:50,marginBottom:50,marginLeft:50,xMin:null,xMax:null,yMin:null,yMax:null,xLabel:"X",yLabel:"Y"};this.config=_.extend({},this.defaults,d);this.log("intial config:",this.config);this.updateConfig=function(g,h){_.extend(this.config,g);this.log(this+".updateConfig:",this.config)};this.toString=function(){return this.config.id};this.translateStr=function(g,h){return"translate("+g+","+h+")"};this.rotateStr=function(h,g,i){return"rotate("+h+","+g+","+i+")"};this.adjustChartDimensions=function(j,h,g,i){j=j||0;h=h||0;g=g||0;i=i||0;this.svg.attr("width",this.config.width+(this.config.marginRight+h)+(this.config.marginLeft+i)).attr("height",this.config.height+(this.config.marginTop+j)+(this.config.marginBottom+g)).style("display","block");this.content=this.svg.select("g.content").attr("transform",this.translateStr(this.config.marginLeft+i,this.config.marginTop+j))};this.preprocessData=function(i,h,g){return(i.length>this.config.maxDataPoints)?(i.slice(0,this.config.maxDataPoints)):(i)};this.findMinMaxes=function(g,i,h){this.xMin=this.config.xMin||(h)?(h[0].min):(d3.min(g));this.xMax=this.config.xMax||(h)?(h[0].max):(d3.max(g));this.yMin=this.config.yMin||(h)?(h[1].min):(d3.min(i));this.yMax=this.config.yMax||(h)?(h[1].max):(d3.max(i))};this.setUpScales=function(){this.xScale=d3.scale.linear().domain([this.xMin,this.xMax]).range([0,this.config.width]),this.yScale=d3.scale.linear().domain([this.yMin,this.yMax]).range([this.config.height,0])};this.setUpXAxis=function(){this.xAxisFn=d3.svg.axis().scale(this.xScale).ticks(this.config.xNumTicks).orient("bottom");this.xAxis.attr("transform",this.translateStr(0,this.config.height)).call(this.xAxisFn);var g=d3.max(_.map([this.xMin,this.xMax],function(h){return(String(h)).length}));if(g>=a){this.xAxis.selectAll("g").filter(":nth-child(odd)").style("display","none")}this.log("this.config.xLabel:",this.config.xLabel);this.xAxisLabel.attr("x",this.config.width/2).attr("y",this.config.xAxisLabelBumpY).attr("text-anchor","middle").text(this.config.xLabel);this.log("xAxisLabel:",this.xAxisLabel)};this.setUpYAxis=function(){this.yAxisFn=d3.svg.axis().scale(this.yScale).ticks(this.config.yNumTicks).orient("left");this.yAxis.call(this.yAxisFn);var g=this.yAxis.selectAll("text").filter(function(k,j){return j!==0});this.log("yTickLabels:",g);this.yLongestLabel=d3.max(g[0].map(function(k,j){return(d3.select(k).text()).length}))||0;var h=b+(this.yLongestLabel*f)+c+e;this.config.yAxisLabelBumpX=-(h-e);if(this.config.marginLeft<h){var i=(h)-this.config.marginLeft;i=(i<0)?(0):(i);this.adjustChartDimensions(0,0,0,i)}this.yAxisLabel.attr("x",this.config.yAxisLabelBumpX).attr("y",this.config.height/2).attr("text-anchor","middle").attr("transform",this.rotateStr(-90,this.config.yAxisLabelBumpX,this.config.height/2)).text(this.config.yLabel)};this.renderGrid=function(){this.vGridLines=this.content.selectAll("line.v-grid-line").data(this.xScale.ticks(this.xAxisFn.ticks()[0]));this.vGridLines.enter().append("svg:line").classed("grid-line v-grid-line",true);this.vGridLines.attr("x1",this.xScale).attr("y1",0).attr("x2",this.xScale).attr("y2",this.config.height);this.vGridLines.exit().remove();this.hGridLines=this.content.selectAll("line.h-grid-line").data(this.yScale.ticks(this.yAxisFn.ticks()[0]));this.hGridLines.enter().append("svg:line").classed("grid-line h-grid-line",true);this.hGridLines.attr("x1",0).attr("y1",this.yScale).attr("x2",this.config.width).attr("y2",this.yScale);this.hGridLines.exit().remove()};this.renderDatapoints=function(g,n,j){this.log(this+".renderDatapoints",arguments);var k=0,m=this,i=function(p,o){return m.xScale(g[o])},h=function(p,o){return m.yScale(n[o])};var l=this.content.selectAll(".glyph").data(g);k=0;l.enter().append("svg:circle").each(function(){k+=1}).classed("glyph",true).attr("cx",0).attr("cy",this.config.height).attr("r",0);this.log(k," new glyphs created");k=0;l.transition().duration(this.config.animDuration).each(function(){k+=1}).attr("cx",i).attr("cy",h).attr("r",m.config.datapointSize);this.log(k," existing glyphs transitioned");l.exit().each(function(){k+=1}).transition().duration(this.config.animDuration).attr("cy",this.config.height).attr("r",0).remove();this.log(k," glyphs removed");this._addDatapointEventhandlers(l,g,n,j)};this._addDatapointEventhandlers=function(j,g,k,h){var i=this;j.on("mouseover",function(o,l){var n=d3.select(this);n.style("fill","red").style("fill-opacity",1);i.content.append("line").attr("stroke","red").attr("stroke-width",1).attr("x1",n.attr("cx")-i.config.datapointSize).attr("y1",n.attr("cy")).attr("x2",0).attr("y2",n.attr("cy")).classed("hoverline",true);if(n.attr("cy")<i.config.height){i.content.append("line").attr("stroke","red").attr("stroke-width",1).attr("x1",n.attr("cx")).attr("y1",n.attr("cy")+i.config.datapointSize).attr("x2",n.attr("cx")).attr("y2",i.config.height).classed("hoverline",true)}var m=$(this).offset();i.datapointInfoBox=i.infoBox(m.top,m.left,i.infoHtml(g[l],k[l],(h)?(h[l]):(undefined)));$("body").append(i.datapointInfoBox)}).on("mouseout",function(){d3.select(this).style("fill","black").style("fill-opacity",0.2);i.content.selectAll(".hoverline").remove();if(i.datapointInfoBox){i.datapointInfoBox.remove()}})},this.render=function(i,j){this.log(this+".render",arguments);this.log("\t config:",this.config);var g=i[0],k=i[1],h=(i.length>2)?(i[2]):(undefined);g=this.preprocessData(g);k=this.preprocessData(k);this.log("xCol len",g.length,"yCol len",k.length);this.findMinMaxes(g,k,j);this.setUpScales();if(!this.svg){this.svg=d3.select("svg").attr("class","chart")}if(!this.content){this.content=this.svg.append("svg:g").attr("class","content").attr("id",this.config.id)}this.adjustChartDimensions();if(!this.xAxis){this.xAxis=this.content.append("g").attr("class","axis").attr("id","x-axis")}if(!this.xAxisLabel){this.xAxisLabel=this.xAxis.append("text").attr("class","axis-label").attr("id","x-axis-label")}if(!this.yAxis){this.yAxis=this.content.append("g").attr("class","axis").attr("id","y-axis")}if(!this.yAxisLabel){this.yAxisLabel=this.yAxis.append("text").attr("class","axis-label").attr("id","y-axis-label")}this.setUpXAxis();this.setUpYAxis();this.renderGrid();this.renderDatapoints(g,k,h)};this.infoHtml=function(g,j,i){var h=$("<div/>");if(i){$("<div/>").text(i).css("font-weight","bold").appendTo(h)}$("<div/>").text(g).appendTo(h);$("<div/>").text(j).appendTo(h);return h.html()};this.infoBox=function(l,k,i,h,g){h=h||0;g=g||20;var j=$("<div />").addClass("chart-info-box").css({position:"absolute",top:l+h,left:k+g});j.html(i);return j}}; |