/*
	Copyright (c) 2004-2006, The Dojo Foundation
	All Rights Reserved.

	Licensed under the Academic Free License version 2.1 or above OR the
	modified BSD license. For more information on Dojo licensing, see:

		http://dojotoolkit.org/community/licensing.shtml
*/

dojo.provide("dojo.charting.vml.Plotters");
dojo.require("dojo.lang.common");

dojo.mixin(dojo.charting.Plotters, {
	/*********************************************************
	 *	Grouped plotters: need all series on a plot at once.
	 *********************************************************/
	Bar: function(
		/* dojo.charting.PlotArea */plotarea,
		/* dojo.charting.Plot */plot,
		/* object? */kwArgs,
		/* function? */applyTo
	){
		//	summary
		//	Plots a set of grouped bars.
		//	Bindings: y
		var area = plotarea.getArea();
		var group = document.createElement("div");
		group.style.position="absolute";
		group.style.top="0px";
		group.style.left="0px";
		group.style.width=plotarea.size.width+"px";
		group.style.height=plotarea.size.height+"px";
		
		//	precompile the data
		var n = plot.series.length;	//	how many series
		var data = [];
		for(var i=0; i<n; i++){
			var tmp = plot.series[i].data.evaluate(kwArgs);
			data.push(tmp);
		}

		//	calculate the width of each bar.
		var space = 8;
		var nPoints = data[0].length;
		var width = ((area.right-area.left)-(space*(nPoints-1)))/nPoints;	//	the width of each group.
		var barWidth = Math.round(width/n);	//	the width of each bar, no spaces.
		var yOrigin = plot.axisY.getCoord(plot.axisX.origin, plotarea, plot);

		for(var i=0; i<nPoints; i++){
			//	calculate offset
			var xStart = area.left+(width*i)+(space*i);
			for(var j=0; j<n; j++){
				var value = data[j][i].y;
				var yA = yOrigin;
				var x = xStart + (barWidth*j);
				var y = plot.axisY.getCoord(value, plotarea, plot);
				var h = Math.abs(yA-y);
				if(value < plot.axisX.origin){
					yA = y;
					y = yOrigin;
				}
				
				var bar=document.createElement("v:rect");
				bar.style.position="absolute";
				bar.style.top=y+1+"px";
				bar.style.left=x+"px";
				bar.style.width=barWidth+"px";
				bar.style.height=h+"px";
				bar.setAttribute("fillColor", data[j][i].series.color);
				bar.setAttribute("stroked", "false");
				bar.style.antialias="false";
				var fill=document.createElement("v:fill");
				fill.setAttribute("opacity", "0.6");
				bar.appendChild(fill);
				if(applyTo){ applyTo(bar, data[j][i].src); }
				group.appendChild(bar);
			}
		}
		return group;	//	HTMLDivElement
	},
	HorizontalBar: function(
		/* dojo.charting.PlotArea */plotarea,
		/* dojo.charting.Plot */plot,
		/* object? */kwArgs,
		/* function? */applyTo
	){
		//	summary
		//	Plots data in a set of grouped bars horizontally.
		//	Bindings: y
		var area = plotarea.getArea();
		var group = document.createElement("div");
		group.style.position="absolute";
		group.style.top="0px";
		group.style.left="0px";
		group.style.width=plotarea.size.width+"px";
		group.style.height=plotarea.size.height+"px";
		
		//	precompile the data
		var n = plot.series.length;	//	how many series
		var data = [];
		for(var i=0; i<n; i++){
			var tmp = plot.series[i].data.evaluate(kwArgs);
			data.push(tmp);
		}

		var space = 6;
		var nPoints = data[0].length;
		var h = ((area.bottom-area.top)-(space*(nPoints-1)))/nPoints;
		var barH = h/n;
		var xOrigin = plot.axisX.getCoord(0, plotarea, plot);

		for(var i=0; i<nPoints; i++){
			//	calculate offset
			var yStart = area.top+(h*i)+(space*i);
			for(var j=0; j<n; j++){
				var value = data[j][i].y;
				var y = yStart + (barH*j);
				var xA = xOrigin;
				var x = plot.axisX.getCoord(value, plotarea, plot);
				var w = Math.abs(x-xA);
				if(value > 0){
					x = xOrigin;
				}
				
				var bar=document.createElement("v:rect");
				bar.style.position="absolute";
				bar.style.top=y+1+"px";
				bar.style.left=xA+"px";
				bar.style.width=w+"px";
				bar.style.height=barH+"px";
				bar.setAttribute("fillColor", data[j][i].series.color);
				bar.setAttribute("stroked", "false");
				bar.style.antialias="false";
				var fill=document.createElement("v:fill");
				fill.setAttribute("opacity", "0.6");
				bar.appendChild(fill);
				if(applyTo){ applyTo(bar, data[j][i].src); }
				group.appendChild(bar);
			}
		}

		//	calculate the width of each bar.
		var space = 4;
		var n = plot.series.length;
		var h = ((area.bottom-area.top)-(space*(n-1)))/n;
		var xOrigin = plot.axisX.getCoord(0, plotarea, plot);
		for(var i=0; i<n; i++){
			var series = plot.series[i];
			var data = series.data.evaluate(kwArgs);
			var y = area.top+(h*i)+(space*i);
			var value = data[data.length-1].y;

			var xA = xOrigin;
			var x = plot.axisX.getCoord(value, plotarea, plot);
			var w = Math.abs(xA-x);
			if(value > 0){
				xA = x;
				x = xOrigin;
			}
			
		}
		return group;	//	HTMLDivElement
	},
	Gantt: function(
		/* dojo.charting.PlotArea */plotarea,
		/* dojo.charting.Plot */plot,
		/* object? */kwArgs,
		/* function? */applyTo
	){
		//	summary
		//	Plots a grouped set of Gantt bars
		//	Bindings: high/low
		var area = plotarea.getArea();
		var group = document.createElement("div");
		group.style.position="absolute";
		group.style.top="0px";
		group.style.left="0px";
		group.style.width=plotarea.size.width+"px";
		group.style.height=plotarea.size.height+"px";
		
		//	precompile the data
		var n = plot.series.length;	//	how many series
		var data = [];
		for(var i=0; i<n; i++){
			var tmp = plot.series[i].data.evaluate(kwArgs);
			data.push(tmp);
		}

		var space = 2;
		var nPoints = data[0].length;
		var h = ((area.bottom-area.top)-(space*(nPoints-1)))/nPoints;
		var barH = h/n;
		for(var i=0; i<nPoints; i++){
			//	calculate offset
			var yStart = area.top+(h*i)+(space*i);
			for(var j=0; j<n; j++){
				var high = data[j][i].high;
				var low = data[j][i].low;
				if(low > high){
					var t = high;
					high = low;
					low = t;
				}
				var x = plot.axisX.getCoord(low, plotarea, plot);
				var w = plot.axisX.getCoord(high, plotarea, plot) - x;
				var y = yStart + (barH*j);
				
				var bar=document.createElement("v:rect");
				bar.style.position="absolute";
				bar.style.top=y+1+"px";
				bar.style.left=x+"px";
				bar.style.width=w+"px";
				bar.style.height=barH+"px";
				bar.setAttribute("fillColor", data[j][i].series.color);
				bar.setAttribute("stroked", "false");
				bar.style.antialias="false";
				var fill=document.createElement("v:fill");
				fill.setAttribute("opacity", "0.6");
				bar.appendChild(fill);
				if(applyTo){ applyTo(bar, data[j][i].src); }
				group.appendChild(bar);
			}
		}
		return group;	//	HTMLDivElement
	},
	StackedArea: function(
		/* dojo.charting.PlotArea */plotarea,
		/* dojo.charting.Plot */plot,
		/* object? */kwArgs,
		/* function? */applyTo
	){
		//	summary
		//	Plots a set of stacked areas.
		//	Bindings: x/y
		var area = plotarea.getArea();
		var group=document.createElement("div");
		group.style.position="absolute";
		group.style.top="0px";
		group.style.left="0px";
		group.style.width=plotarea.size.width+"px";
		group.style.height=plotarea.size.height+"px";

		//	precompile the data
		var n = plot.series.length;	//	how many series
		var data = [];
		var totals = [];

		//	we're assuming that all series for this plot has the name x assignment for now.
		for(var i=0; i<n; i++){
			var tmp = plot.series[i].data.evaluate(kwArgs);
			//	run through and add current totals
			for(var j=0; j<tmp.length; j++){
				if(i==0){ totals.push(tmp[j].y); }
				else { totals[j] += tmp[j].y; }
				tmp[j].y = totals[j];
			}
			data.push(tmp);
		}

		for(var i=n-1; i>=0; i--){
			var path=document.createElement("v:shape");
			path.setAttribute("strokeweight", "1px");
			path.setAttribute("strokecolor", data[i][0].series.color);
			path.setAttribute("fillcolor", data[i][0].series.color);
			path.setAttribute("coordsize", (area.right-area.left) + "," + (area.bottom-area.top));
			path.style.position="absolute";
			path.style.top="0px";
			path.style.left="0px";
			path.style.width=area.right-area.left+"px";
			path.style.height=area.bottom-area.top+"px";
			var stroke=document.createElement("v:stroke");
			stroke.setAttribute("opacity", "0.8");
			path.appendChild(stroke);
			var fill=document.createElement("v:fill");
			fill.setAttribute("opacity", "0.4");
			path.appendChild(fill);

			var cmd = [];
			var r=3;
			for(var j=0; j<data[i].length; j++){
				var values = data[i];
				var x = Math.round(plot.axisX.getCoord(values[j].x, plotarea, plot));
				var y = Math.round(plot.axisY.getCoord(values[j].y, plotarea, plot));

				if (j==0){
					cmd.push("m");
					cmd.push(x+","+y);
				}else{
					cmd.push("l");
					cmd.push(x+","+y);
				}

				//	add the circle.
				var c = document.createElement("v:oval");
				c.setAttribute("strokeweight", "1px");
				c.setAttribute("strokecolor", values[j].series.color);
				c.setAttribute("fillcolor", values[j].series.color);
				var str=document.createElement("v:stroke");
				str.setAttribute("opacity","0.8");
				c.appendChild(str);
				str=document.createElement("v:fill");
				str.setAttribute("opacity","0.6");
				c.appendChild(str);
				var s=c.style;
				s.position="absolute";
				s.top=(y-r)+"px";
				s.left=(x-r)+"px";
				s.width=(r*2)+"px";
				s.height=(r*2)+"px";
				group.appendChild(c);
				if(applyTo){ applyTo(c, data[j].src); }
			}

			//	now run the path backwards from the previous series.
			if(i == 0){
				cmd.push("l");
				cmd.push(x + "," + Math.round(plot.axisY.getCoord(plot.axisX.origin, plotarea, plot)));
				cmd.push("l");
				cmd.push(Math.round(plot.axisX.getCoord(data[0][0].x, plotarea, plot)) + "," +  Math.round(plot.axisY.getCoord(plot.axisX.origin, plotarea, plot)));
			} else {
				var values = data[i-1];
				cmd.push("l");
				cmd.push(x + "," + Math.round(plot.axisY.getCoord(values[values.length-1].y, plotarea, plot)));
				for(var j=values.length-2; j>=0; j--){
					var x = Math.round(plot.axisX.getCoord(values[j].x, plotarea, plot));
					var y = Math.round(plot.axisY.getCoord(values[j].y, plotarea, plot));
					
					cmd.push("l");
					cmd.push(x+","+y);
				}
			}
			path.setAttribute("path", cmd.join(" ")+" x e");
			group.appendChild(path);
		}
		return group;	//	HTMLDivElement
	},
	StackedCurvedArea: function(
		/* dojo.charting.PlotArea */plotarea,
		/* dojo.charting.Plot */plot,
		/* object? */kwArgs,
		/* function? */applyTo
	){
		//	summary
		//	Plots a set of stacked areas, using a tensioning factor to soften points.
		//	Bindings: x/y
		var tension = 3;
		var area = plotarea.getArea();
		var group=document.createElement("div");
		group.style.position="absolute";
		group.style.top="0px";
		group.style.left="0px";
		group.style.width=plotarea.size.width+"px";
		group.style.height=plotarea.size.height+"px";

		//	precompile the data
		var n = plot.series.length;	//	how many series
		var data = [];
		var totals = [];

		//	we're assuming that all series for this plot has the name x assignment for now.
		for(var i=0; i<n; i++){
			var tmp = plot.series[i].data.evaluate(kwArgs);
			//	run through and add current totals
			for(var j=0; j<tmp.length; j++){
				if(i==0){ totals.push(tmp[j].y); }
				else { totals[j] += tmp[j].y; }
				tmp[j].y = totals[j];
			}
			data.push(tmp);
		}

		for(var i=n-1; i>=0; i--){
			var path=document.createElement("v:shape");
			path.setAttribute("strokeweight", "1px");
			path.setAttribute("strokecolor", data[i][0].series.color);
			path.setAttribute("fillcolor", data[i][0].series.color);
			path.setAttribute("coordsize", (area.right-area.left) + "," + (area.bottom-area.top));
			path.style.position="absolute";
			path.style.top="0px";
			path.style.left="0px";
			path.style.width=area.right-area.left+"px";
			path.style.height=area.bottom-area.top+"px";
			var stroke=document.createElement("v:stroke");
			stroke.setAttribute("opacity", "0.8");
			path.appendChild(stroke);
			var fill=document.createElement("v:fill");
			fill.setAttribute("opacity", "0.4");
			path.appendChild(fill);

			var cmd = [];
			var r=3;
			for(var j=0; j<data[i].length; j++){
				var values = data[i];
				var x = Math.round(plot.axisX.getCoord(values[j].x, plotarea, plot));
				var y = Math.round(plot.axisY.getCoord(values[j].y, plotarea, plot));

				if (j==0){
					cmd.push("m");
					cmd.push(x+","+y);
				}else{
					var lastx = Math.round(plot.axisX.getCoord(values[j-1].x, plotarea, plot));
					var lasty = Math.round(plot.axisY.getCoord(values[j-1].y, plotarea, plot));
					var dx=x-lastx;
					var dy=y-lasty;
					
					cmd.push("c");
					var cx=Math.round((x-(tension-1)*(dx/tension)));
					cmd.push(cx+","+lasty);
					cx=Math.round((x-(dx/tension)));
					cmd.push(cx+","+y);
					cmd.push(x+","+y);
				}

				//	add the circle.
				var c = document.createElement("v:oval");
				c.setAttribute("strokeweight", "1px");
				c.setAttribute("strokecolor", values[j].series.color);
				c.setAttribute("fillcolor", values[j].series.color);
				var str=document.createElement("v:stroke");
				str.setAttribute("opacity","0.8");
				c.appendChild(str);
				str=document.createElement("v:fill");
				str.setAttribute("opacity","0.6");
				c.appendChild(str);
				var s=c.style;
				s.position="absolute";
				s.top=(y-r)+"px";
				s.left=(x-r)+"px";
				s.width=(r*2)+"px";
				s.height=(r*2)+"px";
				group.appendChild(c);
				if(applyTo){ applyTo(c, data[j].src); }
			}

			//	now run the path backwards from the previous series.
			if(i == 0){
				cmd.push("l");
				cmd.push(x + "," + Math.round(plot.axisY.getCoord(plot.axisX.origin, plotarea, plot)));
				cmd.push("l");
				cmd.push(Math.round(plot.axisX.getCoord(data[0][0].x, plotarea, plot)) + "," +  Math.round(plot.axisY.getCoord(plot.axisX.origin, plotarea, plot)));
			} else {
				var values = data[i-1];
				cmd.push("l");
				cmd.push(x + "," + Math.round(plot.axisY.getCoord(values[values.length-1].y, plotarea, plot)));
				for(var j=values.length-2; j>=0; j--){
					var x = Math.round(plot.axisX.getCoord(values[j].x, plotarea, plot));
					var y = Math.round(plot.axisY.getCoord(values[j].y, plotarea, plot));

					var lastx = Math.round(plot.axisX.getCoord(values[j+1].x, plotarea, plot));
					var lasty = Math.round(plot.axisY.getCoord(values[j+1].y, plotarea, plot));
					var dx=x-lastx;
					var dy=y-lasty;
					
					cmd.push("c");
					var cx=Math.round((x-(tension-1)*(dx/tension)));
					cmd.push(cx+","+lasty);
					cx=Math.round((x-(dx/tension)));
					cmd.push(cx+","+y);
					cmd.push(x+","+y);
				}
			}
			path.setAttribute("path", cmd.join(" ")+" x e");
			group.appendChild(path);
		}
		return group;	//	HTMLDivElement
	},

	/*********************************************************
	 *	Single plotters: one series at a time.
	 *********************************************************/
	DataBar: function(
		/* array */data, 
		/* dojo.charting.PlotArea */plotarea,
		/* dojo.charting.Plot */plot,
		/* function? */applyTo
	){
		//	summary
		//	Plots a set of bars in relation to y==0.
		//	Bindings: x/y
		var area = plotarea.getArea();
		var group = document.createElement("div");
		group.style.position="absolute";
		group.style.top="0px";
		group.style.left="0px";
		group.style.width=plotarea.size.width+"px";
		group.style.height=plotarea.size.height+"px";
		
		var n = data.length;
		var w = (area.right-area.left)/(plot.axisX.range.upper - plot.axisX.range.lower);	//	the width of each group.
		var yOrigin = plot.axisY.getCoord(plot.axisX.origin, plotarea, plot);

		for(var i=0; i<n; i++){
			//	calculate offset
			var value = data[i].y;
			var yA = yOrigin;
			var x = plot.axisX.getCoord(data[i].x, plotarea, plot)-(w/2)+1;
			var y = plot.axisY.getCoord(value, plotarea, plot);
			var h = Math.abs(yA-y);
			if(value < plot.axisX.origin){
				yA = y;
				y = yOrigin;
			}
			var bar=document.createElement("v:rect");
			bar.style.position="absolute";
			bar.style.top=y+1+"px";
			bar.style.left=x+"px";
			bar.style.width=w+"px";
			bar.style.height=h+"px";
			bar.setAttribute("fillColor", data[i].series.color);
			bar.setAttribute("stroked", "false");
			bar.style.antialias="false";
			var fill=document.createElement("v:fill");
			fill.setAttribute("opacity", "0.6");
			bar.appendChild(fill);
			if(applyTo){ applyTo(bar, data[i].src); }
			group.appendChild(bar);
		}
		return group;	//	HTMLDivElement
	},
	Line: function(
		/* array */data, 
		/* dojo.charting.PlotArea */plotarea,
		/* dojo.charting.Plot */plot,
		/* function? */applyTo
	){
		//	summary
		//	Plots the series as a line.
		//	Bindings: x/y
		var area = plotarea.getArea();
		var group=document.createElement("div");
		group.style.position="absolute";
		group.style.top="0px";
		group.style.left="0px";
		group.style.width=plotarea.size.width+"px";
		group.style.height=plotarea.size.height+"px";

		var path=document.createElement("v:shape");
		path.setAttribute("strokeweight", "2px");
		path.setAttribute("strokecolor", data[0].series.color);
		path.setAttribute("fillcolor", "none");
		path.setAttribute("filled", "false");
		path.setAttribute("coordsize", (area.right-area.left) + "," + (area.bottom-area.top));
		path.style.position="absolute";
		path.style.top="0px";
		path.style.left="0px";
		path.style.width=area.right-area.left+"px";
		path.style.height=area.bottom-area.top+"px";
		var stroke=document.createElement("v:stroke");
		stroke.setAttribute("opacity", "0.8");
		path.appendChild(stroke);

		var cmd = [];
		var r=3;
		for(var i=0; i<data.length; i++){
			var x = Math.round(plot.axisX.getCoord(data[i].x, plotarea, plot));
			var y = Math.round(plot.axisY.getCoord(data[i].y, plotarea, plot));

			if (i==0){
				cmd.push("m");
				cmd.push(x+","+y);
			}else{
				cmd.push("l");
				cmd.push(x+","+y);
			}

			//	add the circle.
			var c = document.createElement("v:oval");
			c.setAttribute("strokeweight", "1px");
			c.setAttribute("strokecolor", data[i].series.color);
			c.setAttribute("fillcolor", data[i].series.color);
			var str=document.createElement("v:stroke");
			str.setAttribute("opacity","0.8");
			c.appendChild(str);
			str=document.createElement("v:fill");
			str.setAttribute("opacity","0.6");
			c.appendChild(str);
			var s=c.style;
			s.position="absolute";
			s.top=(y-r)+"px";
			s.left=(x-r)+"px";
			s.width=(r*2)+"px";
			s.height=(r*2)+"px";
			group.appendChild(c);
			if(applyTo){ applyTo(c, data[i].src); }
		}
		path.setAttribute("path", cmd.join(" ")+" e");
		group.appendChild(path);
		return group;	//	HTMLDivElement
	},
	CurvedLine: function(
		/* array */data, 
		/* dojo.charting.PlotArea */plotarea,
		/* dojo.charting.Plot */plot,
		/* function? */applyTo
	){
		//	summary
		//	Plots the series as a line with a tension factor for softening.
		//	Bindings: x/y
		var tension = 3;
		var area = plotarea.getArea();
		var group=document.createElement("div");
		group.style.position="absolute";
		group.style.top="0px";
		group.style.left="0px";
		group.style.width=plotarea.size.width+"px";
		group.style.height=plotarea.size.height+"px";

		var path=document.createElement("v:shape");
		path.setAttribute("strokeweight", "2px");
		path.setAttribute("strokecolor", data[0].series.color);
		path.setAttribute("fillcolor", "none");
		path.setAttribute("filled", "false");
		path.setAttribute("coordsize", (area.right-area.left) + "," + (area.bottom-area.top));
		path.style.position="absolute";
		path.style.top="0px";
		path.style.left="0px";
		path.style.width=area.right-area.left+"px";
		path.style.height=area.bottom-area.top+"px";
		var stroke=document.createElement("v:stroke");
		stroke.setAttribute("opacity", "0.8");
		path.appendChild(stroke);

		var cmd = [];
		var r=3;
		for(var i=0; i<data.length; i++){
			var x = Math.round(plot.axisX.getCoord(data[i].x, plotarea, plot));
			var y = Math.round(plot.axisY.getCoord(data[i].y, plotarea, plot));

			if (i==0){
				cmd.push("m");
				cmd.push(x+","+y);
			}else{
				var lastx = Math.round(plot.axisX.getCoord(data[i-1].x, plotarea, plot));
				var lasty = Math.round(plot.axisY.getCoord(data[i-1].y, plotarea, plot));
				var dx=x-lastx;
				var dy=y-lasty;
				
				cmd.push("c");
				var cx=Math.round((x-(tension-1)*(dx/tension)));
				cmd.push(cx+","+lasty);
				cx=Math.round((x-(dx/tension)));
				cmd.push(cx+","+y);
				cmd.push(x+","+y);
			}

			//	add the circle.
			var c = document.createElement("v:oval");
			c.setAttribute("strokeweight", "1px");
			c.setAttribute("strokecolor", data[i].series.color);
			c.setAttribute("fillcolor", data[i].series.color);
			var str=document.createElement("v:stroke");
			str.setAttribute("opacity","0.8");
			c.appendChild(str);
			str=document.createElement("v:fill");
			str.setAttribute("opacity","0.6");
			c.appendChild(str);
			var s=c.style;
			s.position="absolute";
			s.top=(y-r)+"px";
			s.left=(x-r)+"px";
			s.width=(r*2)+"px";
			s.height=(r*2)+"px";
			group.appendChild(c);
			if(applyTo){ applyTo(c, data[i].src); }
		}
		path.setAttribute("path", cmd.join(" ")+" e");
		group.appendChild(path);
		return group;	//	HTMLDivElement
	},
	Area: function(
		/* array */data, 
		/* dojo.charting.PlotArea */plotarea,
		/* dojo.charting.Plot */plot,
		/* function? */applyTo
	){
		//	summary
		//	Plots the series as an area.
		//	Bindings: x/y
		var area = plotarea.getArea();
		var group=document.createElement("div");
		group.style.position="absolute";
		group.style.top="0px";
		group.style.left="0px";
		group.style.width=plotarea.size.width+"px";
		group.style.height=plotarea.size.height+"px";

		var path=document.createElement("v:shape");
		path.setAttribute("strokeweight", "1px");
		path.setAttribute("strokecolor", data[0].series.color);
		path.setAttribute("fillcolor", data[0].series.color);
		path.setAttribute("coordsize", (area.right-area.left) + "," + (area.bottom-area.top));
		path.style.position="absolute";
		path.style.top="0px";
		path.style.left="0px";
		path.style.width=area.right-area.left+"px";
		path.style.height=area.bottom-area.top+"px";
		var stroke=document.createElement("v:stroke");
		stroke.setAttribute("opacity", "0.8");
		path.appendChild(stroke);
		var fill=document.createElement("v:fill");
		fill.setAttribute("opacity", "0.4");
		path.appendChild(fill);

		var cmd = [];
		var r=3;
		for(var i=0; i<data.length; i++){
			var x = Math.round(plot.axisX.getCoord(data[i].x, plotarea, plot));
			var y = Math.round(plot.axisY.getCoord(data[i].y, plotarea, plot));

			if (i==0){
				cmd.push("m");
				cmd.push(x+","+y);
			}else{
				cmd.push("l");
				cmd.push(x+","+y);
			}

			//	add the circle.
			var c = document.createElement("v:oval");
			c.setAttribute("strokeweight", "1px");
			c.setAttribute("strokecolor", data[i].series.color);
			c.setAttribute("fillcolor", data[i].series.color);
			var str=document.createElement("v:stroke");
			str.setAttribute("opacity","0.8");
			c.appendChild(str);
			str=document.createElement("v:fill");
			str.setAttribute("opacity","0.6");
			c.appendChild(str);
			var s=c.style;
			s.position="absolute";
			s.top=(y-r)+"px";
			s.left=(x-r)+"px";
			s.width=(r*2)+"px";
			s.height=(r*2)+"px";
			group.appendChild(c);
			if(applyTo){ applyTo(c, data[i].src); }
		}
		cmd.push("l");
		cmd.push(x + "," + Math.round(plot.axisY.getCoord(plot.axisX.origin, plotarea, plot)));
		cmd.push("l");
		cmd.push(Math.round(plot.axisX.getCoord(data[0].x, plotarea, plot)) + "," +  Math.round(plot.axisY.getCoord(plot.axisX.origin, plotarea, plot)));
		path.setAttribute("path", cmd.join(" ")+" x e");
		group.appendChild(path);
		return group;	//	HTMLDivElement
	},
	CurvedArea: function(
		/* array */data, 
		/* dojo.charting.PlotArea */plotarea,
		/* dojo.charting.Plot */plot,
		/* function? */applyTo
	){
		//	summary
		//	Plots the series as an area with a tension for softening.
		//	Bindings: x/y
		var tension = 3;
		var area = plotarea.getArea();
		var group=document.createElement("div");
		group.style.position="absolute";
		group.style.top="0px";
		group.style.left="0px";
		group.style.width=plotarea.size.width+"px";
		group.style.height=plotarea.size.height+"px";

		var path=document.createElement("v:shape");
		path.setAttribute("strokeweight", "1px");
		path.setAttribute("strokecolor", data[0].series.color);
		path.setAttribute("fillcolor", data[0].series.color);
		path.setAttribute("coordsize", (area.right-area.left) + "," + (area.bottom-area.top));
		path.style.position="absolute";
		path.style.top="0px";
		path.style.left="0px";
		path.style.width=area.right-area.left+"px";
		path.style.height=area.bottom-area.top+"px";
		var stroke=document.createElement("v:stroke");
		stroke.setAttribute("opacity", "0.8");
		path.appendChild(stroke);
		var fill=document.createElement("v:fill");
		fill.setAttribute("opacity", "0.4");
		path.appendChild(fill);

		var cmd = [];
		var r=3;
		for(var i=0; i<data.length; i++){
			var x = Math.round(plot.axisX.getCoord(data[i].x, plotarea, plot));
			var y = Math.round(plot.axisY.getCoord(data[i].y, plotarea, plot));

			if (i==0){
				cmd.push("m");
				cmd.push(x+","+y);
			}else{
				var lastx = Math.round(plot.axisX.getCoord(data[i-1].x, plotarea, plot));
				var lasty = Math.round(plot.axisY.getCoord(data[i-1].y, plotarea, plot));
				var dx=x-lastx;
				var dy=y-lasty;
				
				cmd.push("c");
				var cx=Math.round((x-(tension-1)*(dx/tension)));
				cmd.push(cx+","+lasty);
				cx=Math.round((x-(dx/tension)));
				cmd.push(cx+","+y);
				cmd.push(x+","+y);
			}

			//	add the circle.
			var c = document.createElement("v:oval");
			c.setAttribute("strokeweight", "1px");
			c.setAttribute("strokecolor", data[i].series.color);
			c.setAttribute("fillcolor", data[i].series.color);
			var str=document.createElement("v:stroke");
			str.setAttribute("opacity","0.8");
			c.appendChild(str);
			str=document.createElement("v:fill");
			str.setAttribute("opacity","0.6");
			c.appendChild(str);
			var s=c.style;
			s.position="absolute";
			s.top=(y-r)+"px";
			s.left=(x-r)+"px";
			s.width=(r*2)+"px";
			s.height=(r*2)+"px";
			group.appendChild(c);
			if(applyTo){ applyTo(c, data[i].src); }
		}
		cmd.push("l");
		cmd.push(x + "," + Math.round(plot.axisY.getCoord(plot.axisX.origin, plotarea, plot)));
		cmd.push("l");
		cmd.push(Math.round(plot.axisX.getCoord(data[0].x, plotarea, plot)) + "," +  Math.round(plot.axisY.getCoord(plot.axisX.origin, plotarea, plot)));
		path.setAttribute("path", cmd.join(" ")+" x e");
		group.appendChild(path);
		return group;	//	HTMLDivElement
	},
	HighLow: function(
		/* array */data, 
		/* dojo.charting.PlotArea */plotarea,
		/* dojo.charting.Plot */plot,
		/* function? */applyTo
	){
		//	summary
		//	Plots the series as a set of high/low bars.
		//	Bindings: x/high/low
		var area = plotarea.getArea();
		var group=document.createElement("div");
		group.style.position="absolute";
		group.style.top="0px";
		group.style.left="0px";
		group.style.width=plotarea.size.width+"px";
		group.style.height=plotarea.size.height+"px";
		
		var n = data.length;
		var part = ((area.right-area.left)/(plot.axisX.range.upper - plot.axisX.range.lower))/4;
		var w = part*2;

		for(var i=0; i<n; i++){
			var high = data[i].high;
			var low = data[i].low;
			if(low > high){
				var t = low;
				low = high;
				high = t;
			}

			var x = plot.axisX.getCoord(data[i].x, plotarea, plot) - (w/2);
			var y = plot.axisY.getCoord(high, plotarea, plot);
			var h = plot.axisY.getCoord(low, plotarea, plot)-y;

			//	high + low
			var bar=document.createElement("v:rect");
			bar.style.position="absolute";
			bar.style.top=y+1+"px";
			bar.style.left=x+"px";
			bar.style.width=w+"px";
			bar.style.height=h+"px";
			bar.setAttribute("fillColor", data[i].series.color);
			bar.setAttribute("stroked", "false");
			bar.style.antialias="false";
			var fill=document.createElement("v:fill");
			fill.setAttribute("opacity", "0.6");
			bar.appendChild(fill);
			if(applyTo){ applyTo(bar, data[i].src); }
			group.appendChild(bar);
		}
		return group;	//	HTMLDivElement
	},	
	HighLowClose: function(
		/* array */data, 
		/* dojo.charting.PlotArea */plotarea,
		/* dojo.charting.Plot */plot,
		/* function? */applyTo
	){
		//	summary
		//	Plots the series as a set of high/low bars with a close indicator.
		//	Bindings: x/high/low/close
		var area = plotarea.getArea();
		var group=document.createElement("div");
		group.style.position="absolute";
		group.style.top="0px";
		group.style.left="0px";
		group.style.width=plotarea.size.width+"px";
		group.style.height=plotarea.size.height+"px";
		
		var n = data.length;
		var part = ((area.right-area.left)/(plot.axisX.range.upper - plot.axisX.range.lower))/4;
		var w = part*2;

		for(var i=0; i<n; i++){
			var high = data[i].high;
			var low = data[i].low;
			if(low > high){
				var t = low;
				low = high;
				high = t;
			}
			var c = data[i].close;

			var x = plot.axisX.getCoord(data[i].x, plotarea, plot) - (w/2);
			var y = plot.axisY.getCoord(high, plotarea, plot);
			var h = plot.axisY.getCoord(low, plotarea, plot)-y;
			var close = plot.axisY.getCoord(c, plotarea, plot);

			var g = document.createElement("div");

			//	high + low
			var bar=document.createElement("v:rect");
			bar.style.position="absolute";
			bar.style.top=y+1+"px";
			bar.style.left=x+"px";
			bar.style.width=w+"px";
			bar.style.height=h+"px";
			bar.setAttribute("fillColor", data[i].series.color);
			bar.setAttribute("stroked", "false");
			bar.style.antialias="false";
			var fill=document.createElement("v:fill");
			fill.setAttribute("opacity", "0.6");
			bar.appendChild(fill);
			g.appendChild(bar);

			var line = document.createElement("v:line");
			line.setAttribute("strokecolor", data[i].series.color);
			line.setAttribute("strokeweight", "1px");
			line.setAttribute("from", x+"px,"+close+"px");
			line.setAttribute("to", (x+w+(part*2)-2)+"px,"+close+"px");
			var s=line.style;
			s.position="absolute";
			s.top="0px";
			s.left="0px";
			s.antialias="false";
			var str=document.createElement("v:stroke");
			str.setAttribute("opacity","0.6");
			line.appendChild(str);
			g.appendChild(line);

			if(applyTo){ applyTo(g, data[i].src); }
			group.appendChild(g);
		}
		return group;	//	HTMLDivElement
	},	
	HighLowOpenClose: function(
		/* array */data, 
		/* dojo.charting.PlotArea */plotarea,
		/* dojo.charting.Plot */plot,
		/* function? */applyTo
	){
		//	summary
		//	Plots the series as a set of high/low bars with open and close indicators.
		//	Bindings: x/high/low/open/close
		var area = plotarea.getArea();
		var group=document.createElement("div");
		group.style.position="absolute";
		group.style.top="0px";
		group.style.left="0px";
		group.style.width=plotarea.size.width+"px";
		group.style.height=plotarea.size.height+"px";
		
		var n = data.length;
		var part = ((area.right-area.left)/(plot.axisX.range.upper - plot.axisX.range.lower))/4;
		var w = part*2;

		for(var i=0; i<n; i++){
			var high = data[i].high;
			var low = data[i].low;
			if(low > high){
				var t = low;
				low = high;
				high = t;
			}
			var o = data[i].open;
			var c = data[i].close;

			var x = plot.axisX.getCoord(data[i].x, plotarea, plot) - (w/2);
			var y = plot.axisY.getCoord(high, plotarea, plot);
			var h = plot.axisY.getCoord(low, plotarea, plot)-y;
			var open = plot.axisY.getCoord(o, plotarea, plot);
			var close = plot.axisY.getCoord(c, plotarea, plot);

			var g = document.createElement("div");

			//	high + low
			var bar=document.createElement("v:rect");
			bar.style.position="absolute";
			bar.style.top=y+1+"px";
			bar.style.left=x+"px";
			bar.style.width=w+"px";
			bar.style.height=h+"px";
			bar.setAttribute("fillColor", data[i].series.color);
			bar.setAttribute("stroked", "false");
			bar.style.antialias="false";
			var fill=document.createElement("v:fill");
			fill.setAttribute("opacity", "0.6");
			bar.appendChild(fill);
			g.appendChild(bar);

			var line = document.createElement("v:line");
			line.setAttribute("strokecolor", data[i].series.color);
			line.setAttribute("strokeweight", "1px");
			line.setAttribute("from", (x-(part*2))+"px,"+open+"px");
			line.setAttribute("to", (x+w-2)+"px,"+open+"px");
			var s=line.style;
			s.position="absolute";
			s.top="0px";
			s.left="0px";
			s.antialias="false";
			var str=document.createElement("v:stroke");
			str.setAttribute("opacity","0.6");
			line.appendChild(str);
			g.appendChild(line);
			
			var line = document.createElement("v:line");
			line.setAttribute("strokecolor", data[i].series.color);
			line.setAttribute("strokeweight", "1px");
			line.setAttribute("from", x+"px,"+close+"px");
			line.setAttribute("to", (x+w+(part*2)-2)+"px,"+close+"px");
			var s=line.style;
			s.position="absolute";
			s.top="0px";
			s.left="0px";
			s.antialias="false";
			var str=document.createElement("v:stroke");
			str.setAttribute("opacity","0.6");
			line.appendChild(str);
			g.appendChild(line);

			if(applyTo){ applyTo(g, data[i].src); }
			group.appendChild(g);
		}
		return group;	//	HTMLDivElement
	},	
	Scatter: function(
		/* array */data, 
		/* dojo.charting.PlotArea */plotarea,
		/* dojo.charting.Plot */plot,
		/* function? */applyTo
	){
		//	summary
		//	Plots the series as a set of points.
		//	Bindings: x/y
		var r=6;
		var mod=r/2;

		var area = plotarea.getArea();
		var group=document.createElement("div");
		group.style.position="absolute";
		group.style.top="0px";
		group.style.left="0px";
		group.style.width=plotarea.size.width+"px";
		group.style.height=plotarea.size.height+"px";

		for(var i=0; i<data.length; i++){
			var x = Math.round(plot.axisX.getCoord(data[i].x, plotarea, plot));
			var y = Math.round(plot.axisY.getCoord(data[i].y, plotarea, plot));

			var point = document.createElement("v:rect");
			point.setAttribute("strokecolor", data[i].series.color);
			point.setAttribute("fillcolor", data[i].series.color);
			var fill=document.createElement("v:fill");
			fill.setAttribute("opacity","0.6");
			point.appendChild(fill);

			var s=point.style;
			s.position="absolute";
			s.rotation="45";
			s.top=(y-mod)+"px";
			s.left=(x-mod)+"px";
			s.width=r+"px";
			s.height=r+"px";
			group.appendChild(point);
			if(applyTo){ applyTo(point, data[i].src); }
		}
		return group;	//	HTMLDivElement
	},
	Bubble: function(
		/* array */data, 
		/* dojo.charting.PlotArea */plotarea,
		/* dojo.charting.Plot */plot,
		/* function? */applyTo
	){
		//	summary
		//	Plots the series as a set of points with a size factor.
		//	Bindings: x/y/size
		var sizeFactor=1;
		var area = plotarea.getArea();
		var group=document.createElement("div");
		group.style.position="absolute";
		group.style.top="0px";
		group.style.left="0px";
		group.style.width=plotarea.size.width+"px";
		group.style.height=plotarea.size.height+"px";

		for(var i=0; i<data.length; i++){
			var x = Math.round(plot.axisX.getCoord(data[i].x, plotarea, plot));
			var y = Math.round(plot.axisY.getCoord(data[i].y, plotarea, plot));
			if(i==0){
				//	figure out the size factor, start with the axis with the greater range.
				var raw = data[i].size;
				var dy = plot.axisY.getCoord(data[i].y + raw, plotarea, plot)-y;
				sizeFactor = dy/raw;
			}
			if(sizeFactor<1) { sizeFactor = 1; }
			var r = (data[i].size/2)*sizeFactor;

			var point = document.createElement("v:oval");
			point.setAttribute("strokecolor", data[i].series.color);
			point.setAttribute("fillcolor", data[i].series.color);
			var fill=document.createElement("v:fill");
			fill.setAttribute("opacity","0.6");
			point.appendChild(fill);

			var s=point.style;
			s.position="absolute";
			s.rotation="45";
			s.top=(y-r)+"px";
			s.left=(x-r)+"px";
			s.width=(r*2)+"px";
			s.height=(r*2)+"px";
			group.appendChild(point);
			if(applyTo){ applyTo(point, data[i].src); }
		}
		return group;	//	HTMLDivElement
	}
});
dojo.charting.Plotters["Default"] = dojo.charting.Plotters.Line;
