freifunk/ffmap-backend
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Nils Schneider 2012-02-17 02:09:21 +01:00
commit 1e6302680c
10 changed files with 7871 additions and 0 deletions
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html/force.js Normal file
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var w = window.innerWidth,
h = window.innerHeight - 10,
fill = d3.scale.category20();
var vis = d3.select("#chart").append("svg")
.attr("width", w)
.attr("height", h);
d3.json("nodes.json", function(json) {
var force = d3.layout.force()
.charge(-350)
.gravity(0.05)
.friction(0.75)
.theta(0.1)
.linkDistance(function (d) { return d.distance; })
.linkStrength(function (d) { return d.strength; })
.nodes(json.nodes)
.links(json.links)
.size([w, h])
.start();
var link = vis.selectAll("line.link")
.data(json.links)
.enter().append("line")
.attr("class", "link")
.style("stroke-width", function(d) { return Math.min(1, d.strength * 2); })
.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 = vis.selectAll("svg.node")
.data(json.nodes)
.enter().append("g")
.attr("class", "node")
.call(force.drag);
node.append("ellipse")
.attr("rx", function(d) { if (d.group == 3) return 4; else return d.name.length * 5; })
.attr("ry", function(d) { if (d.group == 3) return 4; else return 14; })
.style("fill", function(d) { if (d.group == 3) return fill(d.group); else return ""; })
.style("stroke", function(d) { return fill(d.group); });
node.append("text")
.attr("text-anchor", "middle")
.attr("y", "4px")
.style("fill", function(d) { return fill(d.group); })
.text(function(d) { if (d.group == 3) return ""; else return d.name; });
node.append("title")
.text(function(d) { return d.name; });
force.on("tick", function() {
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 + ")"; });
});
});