Radial Dendrogram

by b_g_v

HTML

<p>Max two words distance with intermediate nodes JA</p>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script type="application/json" id="data">

</script>

CSS

.link line {
  /*stroke: #696969;*/
  /*stroke: #EEEDED;*/
  stroke: #BFBEBE;
}

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

.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 = 1700,
    height = 900;
*/
var width = 1800,
    height = 850;

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);
/*
svg.append('defs').append('marker')
        .attr({'id':'triangle',
            'viewBox':'-0 -5 10 10',
            'refX':4,
            'refY':0,
            'orient':'auto',
            'markerWidth':4,
            'markerHeight':4,
            'xoverflow':'visible'})
        .append('svg:path')
        .attr('d', 'M 0,-5 L 10 ,0 L 0,5')
        .attr('fill', '#BFBEBE')
        .style('stroke','none');
*/
var force = d3.layout.force()
    .size([width, height])
    .charge(-200)
    //.linkDistance(function(d) { return radius(d.source.size) + radius(d.target.size) + 10; });
    .linkDistance(function(d) { return 20; });

  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", "url(#triangle)")*/
    .attr("marker-end", function(link, idx){ return 'url(#triangle-' + idx+')'})
    .style("stroke-width", function(d) { return (d.bond * 2 - 1) * 2 + "px"; });

  //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);

  node.append("circle")
      .attr("r", function(d) { return d.atom.charAt(0) == '_' ? 1 : radius(d.size); })
      .style("fill", function(d) { return d.atom.charAt(0) == '_' ? 'gray' : color(d.atom); });

  node.append("text")
      .attr("dy", ".35em")
      .attr("text-anchor", "middle")
     ...