charlieg.github.com/circles.html at master · charlieg/charlieg.github.com · GitHub

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<!DOCTYPE html>
<meta charset="utf-8">
<style>

.node {
  stroke: #fff;
  stroke-width: 1.5px;
}

.node text {
  pointer-events: none;
  font: 10px sans-serif;
}

.link {
  stroke: #999;
  stroke-opacity: .5;
}

</style>
<body>
<script src="d3/d3.v3.min.js"></script>
<script>

var width = window.innerWidth,
    height = window.innerHeight;

var force = d3.layout.force()
    .charge(-999)
    .linkDistance(200)
    .size([width, height]);

var svg = d3.select("body").append("svg")
    .attr("width", width)
    .attr("height", height);

d3.json("miserables.json", function(error, graph) {
  force
      .nodes(graph.nodes)
      .links(graph.links)
      .start();

  var link = svg.selectAll("line.link")
      .data(graph.links)
    .enter().append("line")
      .attr("class", "link")
      .style("stroke-width", 1);

  var node = svg.selectAll("circle.node")
      .data(graph.nodes)
    .enter().append("circle")
      .attr("class", "node")
      .attr("r", function(d) { return d.radius; })
      .style("fill", function(d) { return d.fill; })
      .call(force.drag);

  node.append("text")
      .attr("dx", 12)
      .attr("dy", ".35em")
      .text(function(d) { return d.name });

  force.on("tick", function() {
    link.attr("x1", function(d) { return d.source.x; })
        .attr("y1", function(d) { return d.source.y; })
        .attr("x2", function(d) { return d.target.x; })
        .attr("y2", function(d) { return d.target.y; });

    node.attr("cx", function(d) { return d.x; })
        .attr("cy", function(d) { return d.y; });
  });
});

</script>