entrainement graph

forked from anonymous's block: entrainement graph

<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v3.min.js"></script>
  <link type="text/css" rel="stylesheet" href="style.css"/>
    <style type="text/css">

circle.node {
  cursor: pointer;
  stroke: #000;
  stroke-width: .5px;
}

line.link {
  fill: none;
  stroke: #9ecae1;
  stroke-width: 1.5px;
}

</style>
</head>

<body>
  <script>
    var w = 1280,
    h = 800,
    node,
    link,
    root;

var force = d3.layout.force()
      .on("tick", tick)
      .charge(function(d) { return d._children ? -d.size / 100 : -30; })
      .linkDistance(function(d) { return d.target._children ? 80 : 30; })
      .size([w, h - 160]);

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

d3.json("flare.json", function(json) {
    root = json;
    root.fixed = true;
    root.x = w / 2;
    root.y = h / 2 - 80;
    update();
  });

function update() {
    var nodes = flatten(root),
        links = d3.layout.tree().links(nodes);

// Restart the force layout.
    force
        .nodes(nodes)
        .links(links)
        .start();

// Update the links…
    link = vis.selectAll("line.link")
        .data(links, function(d) { return d.target.id; });

// Enter any new links.
    link.enter().insert("svg:line", ".node")
        .attr("class", "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; });

// Exit any old links.
    link.exit().remove();

// Update the nodes…
    node = vis.selectAll("circle.node")
        .data(nodes, function(d) { return d.id; })
        .style("fill", color)
    		.fill("https://pbs.twimg.com/profile_images/764004114120318978/PSJjWv5-.jpg");

node.transition()
        .attr("r", function(d) { return d.children ? 4.5 : Math.sqrt(d.size) / 10; });

// Enter any new nodes.
    node.enter().append("svg:circle")
        .attr("class", "node")
        .attr("cx", function(d) { return d.x; })
        .attr("cy", function(d) { return d.y; })
        .attr("r", function(d) { return d.children ? 4.5 : Math.sqrt(d.size) / 10; })
        .style("fill", color)
        .on("click", click)
        .call(force.drag);

// Exit any old nodes.
    node.exit().remove();
  }

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

// Color leaf nodes orange, and packages white or blue.
  function color(d) {
    return d._children ? "#3182bd" : d.children ? "#c6dbef" : "#fd8d3c";
  }

// Toggle children on click.
  function click(d) {
    if (d.children) {
      d._children = d.children;
      d.children = null;
    } else {
      d.children = d._children;
      d._children = null;
    }
    update();
  }

// Returns a list of all nodes under the root.
  function flatten(root) {
    var nodes = [], i = 0;

function recurse(node) {
      if (node.children) node.size = node.children.reduce(function(p, v) { return p + recurse(v); }, 0);
      if (!node.id) node.id = ++i;
      nodes.push(node);
      return node.size;
    }

root.size = recurse(root);
    return nodes;
  }

</script>
</body>

https://d3js.org/d3.v3.min.js