steveharoz/README.md

## README.md

      
    Raw
  

              README.md
            
          
    Stackoverflow question: http://stackoverflow.com/questions/32549683/d3js-json-pie-chart?noredirect=1#comment52995750_32549683

  
## data.csv

          
            age
            population

            
              <5
              2704659

            
              5-13
              4499890

            
              14-17
              2159981

            
              18-24
              3853788

            
              25-44
              14106543

            
              45-64
              8819342

            
              ≥65
              612463

## data.json
{"data":[
    {"ap": [
        {"floorratio": [
            {"floor":"Basement", "ratio": 0.20},
            {"floor":"Ground", "ratio": 0.20},
            {"floor":"First Floor", "ratio": 0.15},
            {"floor":"Second Floor", "ratio": 0.20},
            {"floor":"Third Floor", "ratio": 0.25}
        ]}
    ]},
    {"ap": [
        {"floorratio": [
            {"floor":"Basement", "ratio": 0.10},
            {"floor":"Ground", "ratio": 0.30},
            {"floor":"First Floor", "ratio": 0.10},
            {"floor":"Second Floor", "ratio": 0.15},
            {"floor":"Third Floor", "ratio": 0.35}
        ]}
    ]}
]}

## index.html
<!doctype html>
<html>
<head>
    <title>Pie Chart Test</title>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
</head>
<style>

body {
  font: 10px sans-serif;
}

.arc path {
  stroke: #fff;
}
</style>

<body>


<script>
var width = 960,
    height = 500,
    radius = Math.min(width, height) / 2;
var color = d3.scale.ordinal()
    .range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]);
var arc = d3.svg.arc()
    .outerRadius(radius - 10)
    .innerRadius(0);

// defines wedge size
var pie = d3.layout.pie()
    .sort(null)
    .value(function (d) { return d.ratio; });

var svg = d3.select("body").append("svg")
    .attr("width", width)
    .attr("height", height)
  .append("g")
    .attr("transform", "translate(" + width / 2 + "," + height / 2 + ")");

d3.json("data.json", function(error, data) {
  node = data.data[0].ap[0].floorratio;

  var g = svg.selectAll(".arc")
      .data(pie(node))
      .enter().append("g")
      .attr("class", "arc");

  g.append("path")
      .attr("d", arc)
      .style("fill", function(d) { return color(d.data.floor); });

  g.append("text")
      .attr("transform", function (d) { return "translate(" + arc.centroid(d) + ")"; })
      .attr("dy", ".35em")
      .style("text-anchor", "middle")
      .text(function (d) { return d.data.floor; });
});
</script>
</body>
</html>

## thumbnail.png

      
    Raw
  

              thumbnail.png
	age	population
	<5	2704659
	5-13	4499890
	14-17	2159981
	18-24	3853788
	25-44	14106543
	45-64	8819342
	≥65	612463
	{"data":[
	{"ap": [
	{"floorratio": [
	{"floor":"Basement", "ratio": 0.20},
	{"floor":"Ground", "ratio": 0.20},
	{"floor":"First Floor", "ratio": 0.15},
	{"floor":"Second Floor", "ratio": 0.20},
	{"floor":"Third Floor", "ratio": 0.25}
	]}
	]},
	{"ap": [
	{"floorratio": [
	{"floor":"Basement", "ratio": 0.10},
	{"floor":"Ground", "ratio": 0.30},
	{"floor":"First Floor", "ratio": 0.10},
	{"floor":"Second Floor", "ratio": 0.15},
	{"floor":"Third Floor", "ratio": 0.35}
	]}
	]}
	]}
	<!doctype html>
	<html>
	<head>
	<title>Pie Chart Test</title>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
	</head>
	<style>

	body {
	font: 10px sans-serif;
	}

	.arc path {
	stroke: #fff;
	}
	</style>

	<body>


	<script>
	var width = 960,
	height = 500,
	radius = Math.min(width, height) / 2;
	var color = d3.scale.ordinal()
	.range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]);
	var arc = d3.svg.arc()
	.outerRadius(radius - 10)
	.innerRadius(0);

	// defines wedge size
	var pie = d3.layout.pie()
	.sort(null)
	.value(function (d) { return d.ratio; });

	var svg = d3.select("body").append("svg")
	.attr("width", width)
	.attr("height", height)
	.append("g")
	.attr("transform", "translate(" + width / 2 + "," + height / 2 + ")");

	d3.json("data.json", function(error, data) {
	node = data.data[0].ap[0].floorratio;

	var g = svg.selectAll(".arc")
	.data(pie(node))
	.enter().append("g")
	.attr("class", "arc");

	g.append("path")
	.attr("d", arc)
	.style("fill", function(d) { return color(d.data.floor); });

	g.append("text")
	.attr("transform", function (d) { return "translate(" + arc.centroid(d) + ")"; })
	.attr("dy", ".35em")
	.style("text-anchor", "middle")
	.text(function (d) { return d.data.floor; });
	});
	</script>
	</body>
	</html>