<%#= render :partial => 'nav' %>
<% content_for :head do %>
<%= javascript_include_tag '/d3.v3.min.js' %>
<% end %>
<% content_for :js do %>
jQuery(function($){
var links = <%= raw d3ify_links(@links).to_json %>;
var nodes = {};
// Compute the distinct nodes from the links.
links.forEach(function(link) {
link.source = nodes[link.source] || (nodes[link.source] = {name: link.source});
link.target = nodes[link.target] || (nodes[link.target] = {name: link.target});
});
var fill_for = {'ldvyl': 'green',
'j58dm': 'red',
'4zz18': 'blue'};
jQuery.each(nodes, function(i, node) {
var m = node.name.match(/-([a-z0-9]{5})-/)
if (m)
node.fill = fill_for[m[1]] || '#ccc';
else if (node.name.match(/^[0-9a-f]{32}/))
node.fill = fill_for['4zz18'];
else
node.fill = '#ccc';
});
var w = 960,
h = 600;
var force = d3.layout.force()
.nodes(d3.values(nodes))
.links(links)
.size([w, h])
.linkDistance(150)
.charge(-300)
.on("tick", tick)
.start();
var svg = d3.select("td.d3").append("svg:svg")
.attr("width", w)
.attr("height", h);
// Per-type markers, as they don't inherit styles.
svg.append("svg:defs").selectAll("marker")
.data(["member_of", "owner", "derived_from"])
.enter().append("svg:marker")
.attr("id", String)
.attr("viewBox", "0 -5 10 10")
.attr("refX", 15)
.attr("refY", -1.5)
.attr("markerWidth", 6)
.attr("markerHeight", 6)
.attr("orient", "auto")
.append("svg:path")
.attr("d", "M0,-5L10,0L0,5");
var path = svg.append("svg:g").selectAll("path")
.data(force.links())
.enter().append("svg:path")
.attr("class", function(d) { return "link " + d.type; })
.attr("marker-end", function(d) { return "url(#" + d.type + ")"; });
var circle = svg.append("svg:g").selectAll("circle")
.data(force.nodes())
.enter().append("svg:circle")
.attr("r", 6)
.style("fill", function(d) { return d.fill; })
.call(force.drag);
var text = svg.append("svg:g").selectAll("g")
.data(force.nodes())
.enter().append("svg:g");
// A copy of the text with a thick white stroke for legibility.
text.append("svg:text")
.attr("x", 8)
.attr("y", ".31em")
.attr("class", "shadow")
.text(function(d) { return d.name.replace(/^([0-9a-z]{5}-){2}/,''); });
text.append("svg:text")
.attr("x", 8)
.attr("y", ".31em")
.text(function(d) { return d.name.replace(/^([0-9a-z]{5}-){2}/,''); });
var edgetext = svg.append("svg:g").selectAll("g")
.data(force.links())
.enter().append("svg:g");
edgetext
.append("svg:text")
.attr("x","-5em")
.attr("y","-0.2em")
.text(function(d) { return d.type; });
// Use elliptical arc path segments to doubly-encode directionality.
function tick() {
path.attr("d", function(d) {
var dx = d.target.x - d.source.x,
dy = d.target.y - d.source.y,
// dr = Math.sqrt(dx * dx + dy * dy);
dr = 0;
return "M" + d.source.x + "," + d.source.y + "A" + dr + "," + dr + " 0 0,1 " + d.target.x + "," + d.target.y;
});
circle.attr("transform", function(d) {
return "translate(" + d.x + "," + d.y + ")";
});
text.attr("transform", function(d) {
return "translate(" + d.x + "," + d.y + ")";
});
edgetext.attr("transform", function(d) {
return "translate(" +
(d.source.x + d.target.x)/2 + "," +
(d.source.y + d.target.y)/2 +
")rotate(" +
(Math.atan2(d.target.y - d.source.y, d.target.x - d.source.x) * 180 / Math.PI) +
")";
});
}
})(jQuery);
<% end %>