Zoomable Icicle

readme.json

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readme.md

Click anywhere to zoom in! Click on the top bar to zoom out. Built with D3.js.

index.html

<!DOCTYPE html>
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
    <title>Partition - Icicle</title>
    <script type="text/javascript" src="http://mbostock.github.com/d3/d3.js"></script>
    <script type="text/javascript" src="http://mbostock.github.com/d3/d3.layout.js"></script>
    <style type="text/css">

rect {
  stroke: #fff;
}

    </style>
  </head>
  <body>
    <div id="chart"></div>
    <script type="text/javascript">

var w = 960,
    h = 500,
    x = d3.scale.linear().range([0, w]),
    y = d3.scale.linear().range([0, h]),
    color = d3.scale.category20c();

var vis = d3.select("#chart").append("svg:svg")
    .attr("width", w)
    .attr("height", h);

var partition = d3.layout.partition()
    .children(function(d) { return isNaN(d.value) ? d3.entries(d.value) : null; })
    .value(function(d) { return d.value; });

d3.json("readme.json", function(json) {
  var rect = vis.selectAll("rect")
      .data(partition(d3.entries(json)[0]))
    .enter().append("svg:rect")
      .attr("x", function(d) { return x(d.x); })
      .attr("y", function(d) { return y(d.y); })
      .attr("width", function(d) { return x(d.dx); })
      .attr("height", function(d) { return y(d.dy); })
      .attr("fill", function(d) { return color((d.children ? d : d.parent).data.key); })
      .on("click", click);

  function click(d) {
    x.domain([d.x, d.x + d.dx]);
    y.domain([d.y, 1]).range([d.y ? 20 : 0, h]);

    rect.transition()
      .duration(750)
      .attr("x", function(d) { return x(d.x); })
      .attr("y", function(d) { return y(d.y); })
      .attr("width", function(d) { return x(d.x + d.dx) - x(d.x); })
      .attr("height", function(d) { return y(d.y + d.dy) - y(d.y); });
  }
});

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