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@heyjordn
Last active February 7, 2016 05:16
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Force Directed graph of Jamaica!
<html>
<meta charset="utf-8">
<style>
/* CSS goes here. */
line {
stroke: #999;
stroke-width: .5px;
}
path {
fill: #ddd;
fill-opacity: .8;
stroke: #fff;
stroke-width: 1.5px;
}
</style>
<body>
<!--BootStrap -->
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
<!--Include the jQuery library -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<!-- Bootstrap JavaScript plugins -->
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js" charset="utf-8"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/topojson/1.6.19/topojson.min.js"></script>
<div id="name"></div>
<script>
var width = 900;
var height = 600;
var force = d3.layout.force().size([width, height]); //Create Force Layout
var offset = [width / 2, height / 2]; //helps with centering
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
d3.json("/Pr0x1m4/jam.geojson", function(jam) { //Load GeoJSON
var nodes = [],
links = [];
var center = d3.geo.centroid(jam); //Finds center of map data
var scale = 20650;
var projection = d3.geo.mercator().scale(scale) //Creates projection
.center(center)
.translate(offset);
var path = d3.geo.path().projection(projection); //Creates path generator
jam.features.forEach(function(d, i) {
var centroid = d3.geo.centroid(d); //finds center of each parish feature
if (centroid.some(isNaN)) return;
centroid.x = centroid[0];
centroid.y = centroid[1];
centroid.feature = d;
nodes.push(centroid); //each parish, with centers added
});
d3.geom.voronoi().links(nodes).forEach(function(link) {
var dx = link.source.x - link.target.x,
dy = link.source.y - link.target.y;
link.distance = Math.sqrt(dx * dx + dy * dy);
links.push(link);
});
force //generates force graph
.gravity(0)
.nodes(nodes)
.links(links)
.linkDistance(function(d) {
return d.distance;
})
.start();
var link = svg.selectAll("line")
.data(links)
.enter()
.append("line")
.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;
})
.attr("transform", "scale(3.5)");
var node = svg.selectAll("g")
.data(nodes)
.enter()
.append("g")
.call(force.drag)
.append("path")
.attr("d", function(d) {
return path(d.feature); //draws parishes
});
force.on("tick", function(e) {
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("transform", function(d) {
return "translate(" + d.x + "," + d.y + ")";
});
});
});
</script>
</body>
</html>
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