enjalot · October 4, 2011 17:51
diff --git a/index.html b/index.html
 <!DOCTYPE html>
 <html>
 <head>
   <title>Pie Chart</title>
   <script type="text/javascript" src="http://mbostock.github.com/d3/d3.js?2.3.0"></script>
   <script type="text/javascript" src="http://mbostock.github.com/d3/d3.layout.js?2.3.0"></script>
   <style type="text/css">

 body {
 font: 10px sans-serif;
 }

   </style>
 </head>
 <body>

     <p style="font-size:12pt;">Click in the box to bake a pie!<p>

   <script type="text/javascript">


    function bakepie(classname, data, x, y, r)
    { 
        //color could be made a parameter
        var color = d3.scale.category10()
        var arc = d3.svg.arc().outerRadius(r)
        var donut = d3.layout.pie();

        var pie = d3.select("#charts")
            .append("svg:g")
                //.data([data.sort(d3.descending)])
                .data([data])
                .attr("class", classname);

        var arcs = pie.selectAll("g.arc")
           .data(donut)
         .enter().append("svg:g")
           .attr("class", "arc")
           .attr("transform", "translate(" + x + "," + y + ")");


        var paths = arcs.append("svg:path")
            .attr("fill", function(d, i) { return color(i); })
            .attr("fill-opacity", .6);
        
        var tweenPie = function (b) {
         b.innerRadius = 0;
         var i = d3.interpolate({startAngle: 0, endAngle: 0}, b);
         return function(t) {
           return arc(i(t));
         };
        }

        var tweenDonut = function (b) {
         b.innerRadius = r * .6;
         var i = d3.interpolate({innerRadius: 0}, b);
         return function(t) {
           return arc(i(t));
         };
        }

        paths.transition()
           .ease("bounce")
           .duration(2000)
           .attrTween("d", tweenPie);

        paths.transition()
           .ease("elastic")
           .delay(function(d, i) { return 2000 + i * 50; })
           .duration(750)
           .attrTween("d", tweenDonut);

    }


    //setup svg canvas
    d3.select("body")
        .append("svg:svg")
            .attr("width", 1000)
            .attr("height", 700)
            .attr("id", "charts")
            .on("click", clickypie)
            .append("svg:rect")
                .attr("width", "100%")
                .attr("height", "100%")
                .attr("stroke", "#000")
                .attr("stroke-width", 3)
                .attr("fill", "none")

    count = 0
    function clickypie()
    {  
        count += 1;
        var xy = d3.svg.mouse(this);
        var r = 50 + Math.random() * 100;
        var data = d3.range(10).map(Math.random)
        bakepie("pie"+count, data, xy[0], xy[1], r);
    };

    /*
    var data = d3.range(10).map(Math.random)
    bakepie("pie1", data, 100, 100, 100);
    data = d3.range(20).map(Math.random)
    bakepie("pie2", data, 200, 200, 150);
    data = d3.range(30).map(Math.random)
    bakepie("pie3", data, 300, 300, 200);
    */


   
   </script>
 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<head>
	<title>Pie Chart</title>
	<script type="text/javascript" src="http://mbostock.github.com/d3/d3.js?2.3.0"></script>
	<script type="text/javascript" src="http://mbostock.github.com/d3/d3.layout.js?2.3.0"></script>
	<style type="text/css">

	body {
	font: 10px sans-serif;
	}

	</style>
	</head>
	<body>

	<p style="font-size:12pt;">Click in the box to bake a pie!<p>

	<script type="text/javascript">


	function bakepie(classname, data, x, y, r)
	{
	//color could be made a parameter
	var color = d3.scale.category10()
	var arc = d3.svg.arc().outerRadius(r)
	var donut = d3.layout.pie();

	var pie = d3.select("#charts")
	.append("svg:g")
	//.data([data.sort(d3.descending)])
	.data([data])
	.attr("class", classname);

	var arcs = pie.selectAll("g.arc")
	.data(donut)
	.enter().append("svg:g")
	.attr("class", "arc")
	.attr("transform", "translate(" + x + "," + y + ")");


	var paths = arcs.append("svg:path")
	.attr("fill", function(d, i) { return color(i); })
	.attr("fill-opacity", .6);

	var tweenPie = function (b) {
	b.innerRadius = 0;
	var i = d3.interpolate({startAngle: 0, endAngle: 0}, b);
	return function(t) {
	return arc(i(t));
	};
	}

	var tweenDonut = function (b) {
	b.innerRadius = r * .6;
	var i = d3.interpolate({innerRadius: 0}, b);
	return function(t) {
	return arc(i(t));
	};
	}

	paths.transition()
	.ease("bounce")
	.duration(2000)
	.attrTween("d", tweenPie);

	paths.transition()
	.ease("elastic")
	.delay(function(d, i) { return 2000 + i * 50; })
	.duration(750)
	.attrTween("d", tweenDonut);

	}


	//setup svg canvas
	d3.select("body")
	.append("svg:svg")
	.attr("width", 1000)
	.attr("height", 700)
	.attr("id", "charts")
	.on("click", clickypie)
	.append("svg:rect")
	.attr("width", "100%")
	.attr("height", "100%")
	.attr("stroke", "#000")
	.attr("stroke-width", 3)
	.attr("fill", "none")

	count = 0
	function clickypie()
	{
	count += 1;
	var xy = d3.svg.mouse(this);
	var r = 50 + Math.random() * 100;
	var data = d3.range(10).map(Math.random)
	bakepie("pie"+count, data, xy[0], xy[1], r);
	};

	/*
	var data = d3.range(10).map(Math.random)
	bakepie("pie1", data, 100, 100, 100);
	data = d3.range(20).map(Math.random)
	bakepie("pie2", data, 200, 200, 150);
	data = d3.range(30).map(Math.random)
	bakepie("pie3", data, 300, 300, 200);
	*/



	</script>
	</body>
	</html>