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Created
July 6, 2016 03:50
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force demo
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<!DOCTYPE html> | |
<head> | |
<meta charset="utf-8"> | |
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script> | |
<style> | |
body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; } | |
svg { width:100%; height: 100% } | |
</style> | |
</head> | |
<body> | |
<script> | |
var w = 960, h = 500; | |
var n = 10; | |
var ANCHORS = 3; | |
var vis = d3.select("body").append("svg:svg") | |
.attr("width", w) | |
.attr("height", h); | |
var nodes = d3.range(n).map(function (d) { return {} }); | |
var links = d3.range(n * 3).map(function (d) { | |
return { | |
source: d % n, | |
destination: (d * 3) % n | |
} | |
}); | |
var force = d3.layout.force() | |
.nodes(nodes).links(links) | |
.gravity(.05).distance(100).charge(-100).size([w, h]) | |
.start(); | |
var link = vis.selectAll("line.link") | |
.data(links) | |
.enter().append("svg:line") | |
.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; }); | |
var node_drag = d3.behavior.drag() | |
.on("dragstart", function () { force.stop(); }) | |
.on("drag", function (d, i) { | |
d.px += d3.event.dx; | |
d.py += d3.event.dy; | |
d.x += d3.event.dx; | |
d.y += d3.event.dy; | |
tick(); | |
}) | |
.on("dragend", function (d, i) { | |
d.fixed = true; | |
tick(); | |
force.resume(); | |
}); | |
var node = vis.selectAll("g.node") | |
.data(nodes) | |
.enter().append("svg:g") | |
.attr("class", "node") | |
.call(node_drag); | |
node.append("svg:image") | |
.attr("class", "circle") | |
.attr("xlink:href", "https://github.com/favicon.ico") | |
.attr("x", "-8px") | |
.attr("y", "-8px") | |
.attr("width", "16px") | |
.attr("height", "16px"); | |
node.append("svg:text") | |
.attr("class", "nodetext") | |
.attr("dx", 12) | |
.attr("dy", ".35em") | |
.text(function(d) { return d.name }); | |
force.on("tick", tick); | |
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("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; }); | |
}; | |
</script> | |
</body> |
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