Created
August 1, 2017 18:18
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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta http-equiv="Content-Type" content="text/html;charset=utf-8"> | |
<link type="text/css" rel="stylesheet" href="http://mbostock.github.io/d3/talk/20111116/style.css"/> | |
<style type="text/css"> | |
circle.node { | |
cursor: pointer; | |
stroke: #000; | |
stroke-width: .5px; | |
} | |
line.link { | |
fill: none; | |
stroke: #9ecae1; | |
stroke-width: 1.5px; | |
} | |
</style> | |
</head> | |
<body> | |
<h2> | |
Flare code size<br> | |
force-directed graph | |
</h2> | |
<script type="text/javascript" src="http://mbostock.github.io/d3/talk/20111116/d3/d3.js"></script> | |
<script type="text/javascript" src="http://mbostock.github.io/d3/talk/20111116/d3/d3.geom.js"></script> | |
<script type="text/javascript" src="http://mbostock.github.io/d3/talk/20111116/d3/d3.layout.js"></script> | |
<script type="text/javascript"> | |
var w = 1280, | |
h = 800, | |
node, | |
link, | |
root; | |
var force = d3.layout.force() | |
.on("tick", tick) | |
.charge(function(d) { return d._children ? -d.size / 100 : -30; }) | |
.linkDistance(function(d) { return d.target._children ? 80 : 30; }) | |
.size([w, h - 160]); | |
var vis = d3.select("body").append("svg:svg") | |
.attr("width", w) | |
.attr("height", h); | |
d3.json("http://mbostock.github.io/d3/talk/20111116/flare.json", function(json) { | |
root = json; | |
root.fixed = true; | |
root.x = w / 2; | |
root.y = h / 2 - 80; | |
update(); | |
}); | |
function update() { | |
var nodes = flatten(root), | |
links = d3.layout.tree().links(nodes); | |
// Restart the force layout. | |
force | |
.nodes(nodes) | |
.links(links) | |
.start(); | |
// Update the links… | |
link = vis.selectAll("line.link") | |
.data(links, function(d) { return d.target.id; }); | |
// Enter any new links. | |
link.enter().insert("svg:line", ".node") | |
.attr("class", "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; }); | |
// Exit any old links. | |
link.exit().remove(); | |
// Update the nodes… | |
node = vis.selectAll("circle.node") | |
.data(nodes, function(d) { return d.id; }) | |
.style("fill", color); | |
node.transition() | |
.attr("r", function(d) { return d.children ? 4.5 : Math.sqrt(d.size) / 10; }); | |
// Enter any new nodes. | |
node.enter().append("svg:circle") | |
.attr("class", "node") | |
.attr("cx", function(d) { return d.x; }) | |
.attr("cy", function(d) { return d.y; }) | |
.attr("r", function(d) { return d.children ? 4.5 : Math.sqrt(d.size) / 10; }) | |
.style("fill", color) | |
.on("click", click) | |
.call(force.drag); | |
// Exit any old nodes. | |
node.exit().remove(); | |
} | |
function tick() { | |
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; }); | |
} | |
// Color leaf nodes orange, and packages white or blue. | |
function color(d) { | |
return d._children ? "#3182bd" : d.children ? "#c6dbef" : "#fd8d3c"; | |
} | |
// Toggle children on click. | |
function click(d) { | |
if (d.children) { | |
d._children = d.children; | |
d.children = null; | |
} else { | |
d.children = d._children; | |
d._children = null; | |
} | |
update(); | |
} | |
// Returns a list of all nodes under the root. | |
function flatten(root) { | |
var nodes = [], i = 0; | |
function recurse(node) { | |
if (node.children) node.size = node.children.reduce(function(p, v) { return p + recurse(v); }, 0); | |
if (!node.id) node.id = ++i; | |
nodes.push(node); | |
return node.size; | |
} | |
root.size = recurse(root); | |
return nodes; | |
} | |
</script> | |
</body> | |
</html> |
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