Molecular clusters

by b_g_v

HTML

<p>Full size content-type, min frequency 20, max 4 words distance, with intermediate nodes, value is pop-word's sentiment rate</p>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script type="application/json" id="data">
{
  "nodes": [
    {
      "color": "green", 
      "size": 13, 
      "atom": "AKIPRESS"
    }, 
    {
      "color": "blue", 
      "size": 1, 
      "atom": "Access Hollywood"
    }, 
    {
      "color": "green", 
      "size": 1, 
      "atom": "Afghanistan"
    }, 
    {
      "color": "blue", 
      "size": 25, 
      "atom": "Alabama Mississippi"
    }, 
    {
      "color": "green", 
      "size": 19, 
      "atom": "Amazon"
    }, 
    {
      "color": "green", 
      "size": 10, 
      "atom": "America"
    }, 
    {
      "color": "green", 
      "size": 15, 
      "atom": "Andrew Gillum"
    }, 
    {
      "color": "green", 
      "size": 53, 
      "atom": "Angela Merkel"
    }, 
    {
      "color": "blue", 
      "size": 30, 
      "atom": "Anthony Kennedys"
    }, 
    {
      "color": "blue", 
      "size": 4, 
      "atom": "Antonio Trillanes IV"
    }, 
    {
      "color": "green", 
      "size": 15, 
      "atom": "Aretha Franklin"
    }, 
    {
      "color": "green", 
      "size": 10, 
      "atom": "Arizona"
    }, 
    {
      "color": "blue", 
      "size": 7, 
      "atom": "Atlantic"
    }, 
    {
      "color": "green", 
      "size": 4, 
      "atom": "Australian"
    }, 
    {
      "color": "green", 
      "size": 62, 
      "atom": "Ayanna Pressley Reaction"
    }, 
    {
      "color": "blue", 
      "size": 13, 
      "atom": "BBC"
    }, 
    {
      "color": "green", 
      "size": 1, 
      "atom": "Beijing"
    }, 
    {
      "color": "blue", 
      "size": 13, 
      "atom": "Ben Sasse"
    }, 
    {
      "color": "green", 
      "size": 7, 
      "atom": "Berlin"
    }, 
    {
      "color": "blue", 
      "size": 16, 
      "atom": "Bob Woodward"
    }, 
    {
      "color": "blue", 
     ...

CSS

.link line {
  /*stroke: #696969;*/
  /*stroke: #EEEDED;*/
  stroke: #BFBEBE;
  /*stroke-dasharray: 0,2 1;*/
}

.link1 line {
  /*stroke-dasharray: 0,2 1;*/
  stroke: gray;
}

.link line.separator {
  stroke: #fff;
  stroke-width: 1px;
}

.node circle {
  stroke: gray;
  stroke-width: 1.5px;
}
.node text {
  font: 10px sans-serif;
  pointer-events: none;
}
div.tooltip {
  position: absolute;
  text-align: center;
                /*width: 200px;*/
                /*height: 10px;*/
                min-height: 10px;
                padding: 8px;
                font: 10px sans-serif;
                background: #ffff99;
                border: solid 1px #aaa;
                border-radius: 8px;
                pointer-events: none;
            }

JavaScript

var data = document.getElementById('data').innerHTML,
    graph = JSON.parse(data);

var width = 1600,
    height = 800;

var color = d3.scale.category20();

var radius = d3.scale.sqrt()
    .range([0, 6]);

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

var force = d3.layout.force()
    .size([width, height])
    .gravity(-0.000001)
    .charge(-100)
    //.charge(0)
    .linkDistance(function(d) { return radius(d.source.size) + radius(d.target.size) + 10; });
    //.linkDistance(function(d) { return 10; });

  force
      .nodes(graph.nodes)
      .links(graph.links)
      .on("tick", tick)
      .start();

  var link = svg.selectAll(".link")
      .data(graph.links)
      .enter().append("g")
      .attr("class", "link");
  //Draw line
  link.append("line")
    .attr("marker-end", function(link, idx){ return 'url(#triangle-' + idx+')'})
    .style("stroke-width", function(d) { return (d.bond * 2 - 1) * 2 + "px"; })
    .style("stroke", function(d) {
                      if(typeof(d.source.color) === 'undefined') d.source.color = color(d.source.atom);
                      return !isSelected(d.source) && (d.source.atom.charAt(0) == '_' ||
                             d.target.atom.charAt(0) == '_') ? ''/*'#BFBEBE'*/ : d.source.color; })
    .style("stroke-dasharray", function(d) {return d.source.atom.charAt(0) == '_' ||
                                            d.target.atom.charAt(0) == '_' ? '0,2 1' : ''; });

  //link.filter(function(d) { return d.bond > 1; }).append("line")
  //    .attr("class", "separator");

  var node = svg.selectAll(".node")
      .data(graph.nodes)
      .enter().append("g")
      .attr("class", "node")
      .call(force.drag);
//Draw circles
  node.append("circle")
      .attr("r", function(d) { return d.atom.charAt(0) == '_' ? 1 : radius(d.size); })
      .style("fill", function(d) {
                      if(typeof(d.color) === 'undefined') d.color = color(d.atom);
              ...