force.html

<!-- START SIGMA IMPORTS -->
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<div id="container">
  <style>
    #graph-container {
      top: 0;
      bottom: 0;
      left: 0;
      right: 0;
      position: absolute;
    }
  </style>
  <div id="graph-container"></div>
</div>
<script src="../plugins/sigma.layout.forceAtlas2/worker.js"></script>
<script src="../plugins/sigma.layout.forceAtlas2/supervisor.js"></script>
<script>
/**
 * Just a simple example to show how to use the sigma.layout.forceAtlas2
 * plugin:
 *
 * A random graph is generated, such that its nodes are separated in some
 * distinct clusters. Each cluster has its own color, and the density of
 * links is stronger inside the clusters. So, we expect the algorithm to
 * regroup the nodes of each cluster.
 */
var i,
    s,
    o,
    N = 1000,
    E = 5000,
    C = 5,
    d = 0.5,
    cs = [],
    g = {
      nodes: [],
      edges: []
    };

// Generate the graph:
for (i = 0; i < C; i++)
  cs.push({
    id: i,
    nodes: [],
    color: '#' + (
      Math.floor(Math.random() * 16777215).toString(16) + '000000'
    ).substr(0, 6)
  });

for (i = 0; i < N; i++) {
  o = cs[(Math.random() * C) | 0];
  g.nodes.push({
    id: 'n' + i,
    label: 'Node' + i,
    x: 100 * Math.cos(2 * i * Math.PI / N),
    y: 100 * Math.sin(2 * i * Math.PI / N),
    size: Math.random(),
    color: o.color
  });
  o.nodes.push('n' + i);
}

for (i = 0; i < E; i++) {
  if (Math.random() < 1 - d)
    g.edges.push({
      id: 'e' + i,
      source: 'n' + ((Math.random() * N) | 0),
      target: 'n' + ((Math.random() * N) | 0)
    });
  else {
    o = cs[(Math.random() * C) | 0]
    g.edges.push({
      id: 'e' + i,
      source: o.nodes[(Math.random() * o.nodes.length) | 0],
      target: o.nodes[(Math.random() * o.nodes.length) | 0]
    });
  }
}

s = new sigma({
  graph: g,
  container: 'graph-container',
  settings: {
    drawEdges: false
  }
});

// Start the ForceAtlas2 algorithm:
s.startForceAtlas2({worker: true, barnesHutOptimize: false});
</script>