JSFiddle - React, Tailwind, and code Playground

by gschutz

HTML

<script src="http://mbostock.github.com/d3/d3.js"></script>
<div id="chart"></div>

CSS

path.link {
  fill: none;
  stroke: #666;
  stroke-width: 1.5px;
}

marker#licensing {
  fill: green;
}

path.link.licensing {
  stroke: green;
}

path.link.resolved {
  stroke-dasharray: 0,2 1;
}

circle {
  fill: #ccc;
  stroke: #333;
  stroke-width: 1.5px;
}

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

text.shadow {
  stroke: #fff;
  stroke-width: 3px;
  stroke-opacity: .8;
}

JavaScript

var links = [{source: "Microsoft", target: "Amazon", type: "licensing"},
             {source: "Microsoft", target: "Amazon", type: "suit"},
             {source: "Samsung", target: "Apple", type: "suit"},
             {source: "Microsoft", target: "Amazon", type: "resolved"}];
//sort links by source, then target
links.sort(function(a,b) {
    if (a.source > b.source) {return 1;}
    else if (a.source < b.source) {return -1;}
    else {
        if (a.target > b.target) {return 1;}
        if (a.target < b.target) {return -1;}
        else {return 0;}
    }
});
//any links with duplicate source and target get an incremented 'linknum'
for (var i=0; i<links.length; i++) {
    if (i != 0 &&
        links[i].source == links[i-1].source &&
        links[i].target == links[i-1].target) {
            links[i].linknum = links[i-1].linknum + 1;
        }
    else {links[i].linknum = 1;};
};

var nodes = {};

// Compute the distinct nodes from the links.
links.forEach(function(link) {
  link.source = nodes[link.source] || (nodes[link.source] = {name: link.source});
  link.target = nodes[link.target] || (nodes[link.target] = {name: link.target});
});

var w = 600,
    h = 600;

var force = d3.layout.force()
    .nodes(d3.values(nodes))
    .links(links)
    .size([w, h])
    .linkDistance(60)
    .charge(-300)
    .on("tick", tick)
    .start();

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

// Per-type markers, as they don't inherit styles.
svg.append("svg:defs").selectAll("marker")
    .data(["suit", "licensing", "resolved"])
  .enter().append("svg:marker")
    .attr("id", String)
    .attr("viewBox", "0 -5 10 10")
    .attr("refX", 15)
    .attr("refY", -1.5)
    .attr("markerWidth", 6)
    .attr("markerHeight", 6)
    .attr("orient", "auto")
  .append("svg:path")
    .attr("d", "M0,-5L10,0L0,5");

var path = svg.append("svg:g").selectAll("path")
    .data(force.links())
  .enter().append("svg:path")
    .attr("class",...