Created
October 4, 2013 08:59
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d3.js fundamentals of force(), nodes() and links()
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| doctype 5 | |
| html -> | |
| head -> | |
| meta charset: 'utf-8' | |
| title 'hello' | |
| script src: 'http://codeorigin.jquery.com/jquery-1.10.2.min.js' | |
| script src: 'http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/js/bootstrap.min.js' | |
| script src: 'http://d3js.org/d3.v3.min.js' | |
| link rel: 'stylesheet', href: 'http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/css/bootstrap-combined.min.css' | |
| style ''' | |
| .link{ | |
| stroke: #000; | |
| stroke-width: 3px; | |
| } | |
| .link2{ | |
| stroke: red; | |
| stroke-width: 1px; | |
| } | |
| .node{ | |
| fill: #000; | |
| stroke: #fff; | |
| stroke-width: 1.5px; | |
| } | |
| .node2{ | |
| fill: red; | |
| stroke: red; | |
| stroke-width: 1px; | |
| } | |
| .node.a { fill: #1f77b4; } | |
| .node.b { fill: #ff7f0e; } | |
| .node.c { fill: #2ca02c; } | |
| ''' | |
| body -> | |
| input '#length', type: "range", min: "0", max: "300" | |
| coffeescript -> | |
| width = 950 | |
| height = 500 | |
| d = 300 | |
| a = {id: "a"} | |
| b = {id: "b"} | |
| c = {id: "c"} | |
| nodes = [] | |
| links = [] | |
| nodes.push(a, b, c) | |
| for i in [0..2] | |
| nodes[i].x = width/2 | |
| nodes[i].y = height/2 | |
| nodes[1].fixed = true | |
| console.log nodes | |
| links.push({source: a, target: b}, {source: a, target: c}, {source: b, target: c}) | |
| force = d3.layout.force().nodes(nodes).links(links).size([width, height]) | |
| .linkDistance(d).on "tick", () -> | |
| link.attr("x1", (d) -> d.source.x) | |
| .attr("y1", (d) -> d.source.y) | |
| .attr("x2", (d) -> d.target.x) | |
| .attr("y2", (d) -> d.target.y) | |
| node.attr("cx", (d) -> d.x) | |
| .attr("cy", (d) -> d.y) | |
| .start() | |
| svg = d3.select("body").append("svg").attr("width", width).attr("height", height) | |
| contrl = d3.select("#length").on("change", () -> | |
| p = $("#length").val() | |
| force.linkDistance(p).start()) | |
| link = svg.selectAll('.link').data(force.links(), (d) -> d.source.id + "-" + d.target.id).enter().insert('line', '.node').attr("class", (d) -> "link" + " " + d.source.id + d.target.id) | |
| node = svg.selectAll('.node').data(force.nodes(), (d) -> d.id).enter().append('circle').attr('class', (d) -> "node " + d.id).attr("r", 8).call(force.drag) |
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