ironpeace · March 2, 2014 03:45
diff --git a/directedGraphSample.html b/directedGraphSample.html
 <!DOCTYPE html>
 <meta charset="utf-8">
 <script src="/assets/d3.v3.min.js" charset="utf-8"></script>
 <style>

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

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

 text {
  fill: #000;
  font: 10px sans-serif;
  pointer-events: none;
 }

 </style>
 <body>
 <script>

 // get the data
 //d3.csv("/assets/force.csv", function(error, links) {
 d3.csv("/assets/graphdata.csv", function(error, links) {

 var nodes = {};

 // Compute the distinct nodes from the links.
 links.forEach(function(link) {

   link.source = nodes[link.source] || 
       (nodes[link.source] = {name: link.source});

    // if (link.source != nodes[link.source]) {
    //     nodes[link.source] = {name: link.source};
    // }

    link.target = nodes[link.target] || 
        (nodes[link.target] = {name: link.target});

    link.value = +link.value;
 });

 console.log(nodes);

 var width = 960,
    height = 500;

 var force = d3.layout.force()
    .nodes(d3.values(nodes))
    .links(links)
    .size([width, height])
    // .linkDistance(60)
    .linkDistance(function(d){
      //console.log(d);
      return d.value * 100;
    })
    .charge(-300)
    .on("tick", tick)
    .start();

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

 // build the arrow.
 svg.append("svg:defs").selectAll("marker")
    .data(["end"])
    .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");

 // add the links and the arrows
 var path = svg.append("svg:g").selectAll("path")
    .data(force.links())
    .enter().append("svg:path")
    .attr("class", "link")
    .attr("marker-end", "url(#end)");

 // define the nodes
 var node = svg.selectAll(".node")
    .data(force.nodes())
    .enter().append("g")
    .attr("class", "node")
    .call(force.drag);

 // add the nodes
 node.append("circle")
    .attr("r", 5);

 // add the text 
 node.append("text")
    .attr("x", 12)
    .attr("dy", ".35em")
    .text(function(d) { return d.name; });

 // add the curvy lines
 function tick() {
    path.attr("d", function(d) {
        var dx = d.target.x - d.source.x,
            dy = d.target.y - d.source.y,
            dr = Math.sqrt(dx * dx + dy * dy);
        return "M" + 
            d.source.x + "," + 
            d.source.y + "A" + 
            dr + "," + dr + " 0 0,1 " + 
            d.target.x + "," + 
            d.target.y;
    });

    node
        .attr("transform", function(d) { 
            return "translate(" + d.x + "," + d.y + ")"; });
 }

 });

 </script>
 </body>
 </html>
diff --git a/graphdata.csv b/graphdata.csv
	<!DOCTYPE html>
	<meta charset="utf-8">
	<script src="/assets/d3.v3.min.js" charset="utf-8"></script>
	<style>

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

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

	text {
	fill: #000;
	font: 10px sans-serif;
	pointer-events: none;
	}

	</style>
	<body>
	<script>

	// get the data
	//d3.csv("/assets/force.csv", function(error, links) {
	d3.csv("/assets/graphdata.csv", function(error, links) {

	var nodes = {};

	// Compute the distinct nodes from the links.
	links.forEach(function(link) {

	link.source = nodes[link.source] \|\|
	(nodes[link.source] = {name: link.source});

	// if (link.source != nodes[link.source]) {
	// nodes[link.source] = {name: link.source};
	// }

	link.target = nodes[link.target] \|\|
	(nodes[link.target] = {name: link.target});

	link.value = +link.value;
	});

	console.log(nodes);

	var width = 960,
	height = 500;

	var force = d3.layout.force()
	.nodes(d3.values(nodes))
	.links(links)
	.size([width, height])
	// .linkDistance(60)
	.linkDistance(function(d){
	//console.log(d);
	return d.value * 100;
	})
	.charge(-300)
	.on("tick", tick)
	.start();

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

	// build the arrow.
	svg.append("svg:defs").selectAll("marker")
	.data(["end"])
	.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");

	// add the links and the arrows
	var path = svg.append("svg:g").selectAll("path")
	.data(force.links())
	.enter().append("svg:path")
	.attr("class", "link")
	.attr("marker-end", "url(#end)");

	// define the nodes
	var node = svg.selectAll(".node")
	.data(force.nodes())
	.enter().append("g")
	.attr("class", "node")
	.call(force.drag);

	// add the nodes
	node.append("circle")
	.attr("r", 5);

	// add the text
	node.append("text")
	.attr("x", 12)
	.attr("dy", ".35em")
	.text(function(d) { return d.name; });

	// add the curvy lines
	function tick() {
	path.attr("d", function(d) {
	var dx = d.target.x - d.source.x,
	dy = d.target.y - d.source.y,
	dr = Math.sqrt(dx * dx + dy * dy);
	return "M" +
	d.source.x + "," +
	d.source.y + "A" +
	dr + "," + dr + " 0 0,1 " +
	d.target.x + "," +
	d.target.y;
	});

	node
	.attr("transform", function(d) {
	return "translate(" + d.x + "," + d.y + ")"; });
	}

	});

	</script>
	</body>
	</html>
source	target	value
005-001-0000001-xxxxxxx	005-001-0000002-xxxxxxx	1.0
005-001-0000001-xxxxxxx	005-003-0000003-xxxxxxx	1.0
005-001-0000001-xxxxxxx	001-004-???????-0000004	1.0
005-001-0000002-xxxxxxx	005-001-0000001-xxxxxxx	1.0