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index.html
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index.html
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<!DOCTYPE html>
<meta charset="utf-8">
<style>
.node {
stroke: #fff;
stroke-width: 1.5px;
}
.link {
stroke: #999;
stroke-opacity: .6;
}
</style>
<body>
<h2>Bachelor Co-Occurrences</h2>
<script src="//d3js.org/d3.v3.min.js"></script>
<script>
var width = 990,
height = 900;
var color = d3.scale.category20();
var force = d3.layout.force()
.charge(-120)
.linkDistance(30)
.size([width, height]);
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
d3.json("links_reduced.json", function(error, graph) {
var edges = [];
graph.links.forEach(function(e) {
var sourceNode = graph.nodes.filter(function(n) { return n.Name === e.source; })[0],
targetNode = graph.nodes.filter(function(n) { return n.Name === e.target; })[0];
edges.push({source: sourceNode, target: targetNode, value: e.Value});
});
force
.nodes(graph.nodes)
.links(edges)
.start();
var link = svg.selectAll(".link")
.data(edges)
.enter().append('line')
.attr('class', 'link')
.style('stroke-width', function(d) {return Math.sqrt(d.value); });
var node = svg.selectAll('.node')
.data(graph.nodes)
.enter().append('circle')
.attr('class', 'node')
.attr('r', 3)
.style('fill', function(d) { return color(d.value); })
.call(force.drag);
node.append('title')
.text(function(d) {return d.Name;});
force.on('tick', function() {
link.attr('x1', function(d) {return d.source.x; })
.attr('y1', function(d) {return d.source.y; })
.attr('x2', function(d) {return d.target.x; })
.attr('y2', function(d) {return d.target.y; });
node.attr('cx', function(d) {return d.x; })
.attr('cy', function(d) {return d.y; });
});
});
</script>