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9-force.html
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9-force.html
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<!DOCTYPE html>
<meta charset="utf-8">
<style>
.chart {
border: 2px solid #ddd;
}
.link {
stroke: #151515;
stroke-width: 1px;
}
.node {
stroke: white;
stroke-width: 1px;
}
.node.fixed {
fill: #f00;
}
</style>
<body>
<button onClick="update()">Update</button>
<div class="chart"></div>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script>
var graph = {
nodes: [
{"group": 0, "radius": 5},
{"group": 1, "radius": 5},
{"group": 2, "radius": 5}
],
links: [
{"source": 1, "target": 0},
{"source": 2, "target": 0}
]
}
var target = ".chart";
var w = parseInt(d3.select(target).style('width'), 10),
h = 360;
(function () {
var data = {
nodes: graph.nodes,
links: graph.links
}
var color = d3.scale.category10();
var force = d3.layout.force()
.size([w, h])
.linkDistance(150)
.on("tick", tick);
var svg = d3.select(target).append("svg")
.attr("width", w)
.attr("height", h);
var link = svg.selectAll(".link"),
node = svg.selectAll(".node");
force
.nodes(data.nodes)
.links(data.links)
.start();
link = link.data(data.links)
.enter().append("line")
.attr("class", "link");
node = node.data(data.nodes)
.enter().append("circle")
.attr("class", "node")
.attr("r", function(d) { return d.radius; })
.style("fill", function(d) { return color(d.group); })
.call(force.drag);
function tick() {
node.attr("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; });
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; });
}
})();
function update() {
var graph = {
nodes: [
{"group": 0, "radius": 50},
{"group": 1, "radius": 10},
{"group": 2, "radius": 10},
{"group": 1, "radius": 20},
{"group": 2, "radius": 20}
],
links: [
{"source": 1, "target": 0},
{"source": 2, "target": 0},
{"source": 3, "target": 0},
{"source": 4, "target": 0}
]
}
var data = {
nodes: graph.nodes,
links: graph.links
}
var color = d3.scale.category10();
var force = d3.layout.force()
.size([w, h])
.linkDistance(150)
.on("tick", tick);
var svg = d3.select(target).selectAll("svg")
.attr("width", w)
.attr("height", h);
var link = svg.selectAll(".link"),
node = svg.selectAll(".node");
force
.nodes(data.nodes)
.links(data.links)
.start();
link = link.data(data.links)
//.enter().append("line")
.attr("class", "link");
node = node.data(data.nodes)
// .enter().append("circle")
.attr("class", "node")
.attr("r", function(d) { return d.radius; })
.style("fill", function(d) { return color(d.group); })
.call(force.drag);
function tick() {
node.attr("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; });
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; });
}
}
</script>