-
Notifications
You must be signed in to change notification settings - Fork 22.9k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
5 changed files
with
219 additions
and
227 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| circle.node { | ||
| fill: lightsteelblue; | ||
| stroke: steelblue; | ||
| stroke-width: 1.5px; | ||
| } | ||
|
|
||
| line.link { | ||
| stroke: #333; | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,157 +1,47 @@ | ||
| function layout_force() { | ||
| var force = {}, | ||
| event = d3.dispatch("tick"), | ||
| size = {x: 1, y: 1}, | ||
| alpha = .1, | ||
| nodeDistance = 60, | ||
| linkDistance = 30, | ||
| interval, | ||
| nodes, | ||
| links; | ||
|
|
||
| // TODO | ||
| // slow the interval as the graph stabilizes | ||
| // allow the nodes to be dragged interactively | ||
|
|
||
| function tick() { | ||
| var n = nodes.length, | ||
| m = links.length, | ||
| i, // current index | ||
| j, // current index | ||
| o, // current link | ||
| s, // current source | ||
| t, // current target | ||
| l, // current distance | ||
| x, | ||
| y; | ||
|
|
||
| // repel nodes | ||
| for (i = 0; i < n; ++i) { | ||
| s = nodes[i]; | ||
| for (j = i + 1; j < n; ++j) { | ||
| t = nodes[j]; | ||
| x = t.x - s.x; | ||
| y = t.y - s.y; | ||
| l = Math.sqrt(x * x + y * y); | ||
| if (l < nodeDistance) { | ||
| l = alpha * (l - nodeDistance) / l; | ||
| x *= l; | ||
| y *= l; | ||
| if (s.fixed) { | ||
| if (t.fixed) continue; | ||
| t.x -= x; | ||
| t.y -= y; | ||
| } else if (t.fixed) { | ||
| s.x += x; | ||
| s.y += y; | ||
| } else { | ||
| s.x += x; | ||
| s.y += y; | ||
| t.x -= x; | ||
| t.y -= y; | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // position constraint for links | ||
| for (i = 0; i < m; ++i) { | ||
| o = links[i]; | ||
| s = o.source; | ||
| t = o.target; | ||
| x = t.x - s.x; | ||
| y = t.y - s.y; | ||
| l = Math.sqrt(x * x + y * y); | ||
| if (l <= 0) l = 0.01; | ||
| l = alpha * (l - linkDistance) / l; | ||
| x *= l; | ||
| y *= l; | ||
| if (s.fixed) { | ||
| if (t.fixed) continue; | ||
| t.x -= x; | ||
| t.y -= y; | ||
| } else if (t.fixed) { | ||
| s.x += x; | ||
| s.y += y; | ||
| } else { | ||
| s.x += x; | ||
| s.y += y; | ||
| t.x -= x; | ||
| t.y -= y; | ||
| } | ||
| } | ||
|
|
||
| event.tick.dispatch({type: "tick"}); | ||
| } | ||
|
|
||
| force.on = function(type, listener) { | ||
| event[type].add(listener); | ||
| return force; | ||
| }; | ||
|
|
||
| force.nodes = function(x) { | ||
| if (!arguments.length) return nodes; | ||
| nodes = x; | ||
| return force; | ||
| }; | ||
|
|
||
| force.links = function(x) { | ||
| if (!arguments.length) return links; | ||
| links = x; | ||
| return force; | ||
| }; | ||
|
|
||
| force.size = function(x) { | ||
| if (!arguments.length) return size; | ||
| size = x; | ||
| return force; | ||
| }; | ||
|
|
||
| force.nodeDistance = function(d) { | ||
| if (!arguments.length) return nodeDistance; | ||
| nodeDistance = d; | ||
| return force; | ||
| }; | ||
|
|
||
| force.linkDistance = function(d) { | ||
| if (!arguments.length) return linkDistance; | ||
| linkDistance = d; | ||
| return force; | ||
| }; | ||
|
|
||
| force.start = function() { | ||
| var i, | ||
| n = nodes.length, | ||
| m = links.length, | ||
| w = size.x, | ||
| h = size.y, | ||
| o; | ||
| for (i = 0; i < n; ++i) { | ||
| o = nodes[i]; | ||
| o.x = o.x || Math.random() * w; | ||
| o.y = o.y || Math.random() * h; | ||
| o.fixed = 0; | ||
| } | ||
| for (i = 0; i < m; ++i) { | ||
| o = links[i]; | ||
| o.source = nodes[o.source]; | ||
| o.target = nodes[o.target]; | ||
| } | ||
| if (interval) clearInterval(interval); | ||
| interval = setInterval(tick, 24); | ||
| return force; | ||
| }; | ||
|
|
||
| force.resume = function() { | ||
| if (interval) clearInterval(interval); | ||
| interval = setInterval(tick, 24); | ||
| return force; | ||
| }; | ||
|
|
||
| force.stop = function() { | ||
| interval = clearInterval(interval); | ||
| return force; | ||
| }; | ||
|
|
||
| return force; | ||
| } | ||
| var w = 960, | ||
| h = 500; | ||
|
|
||
| var vis = d3.select("#chart") | ||
| .append("svg:svg") | ||
| .attr("width", w) | ||
| .attr("height", h); | ||
|
|
||
| d3.json("miserables.json", function(json) { | ||
| var force = layout_force() | ||
| .nodes(json.nodes) | ||
| .links(json.links) | ||
| .size({x: w, y: h}) | ||
| .start(); | ||
|
|
||
| var link = vis.selectAll("line.link") | ||
| .data(json.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 = vis.selectAll("circle.node") | ||
| .data(json.nodes) | ||
| .enter().append("svg:circle") | ||
| .attr("class", "node") | ||
| .attr("cx", function(d) { return d.x; }) | ||
| .attr("cy", function(d) { return d.y; }) | ||
| .attr("r", 4.5); | ||
|
|
||
| vis.attr("opacity", 0) | ||
| .transition() | ||
| .duration(1000) | ||
| .attr("opacity", 1); | ||
|
|
||
| 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("cx", function(d) { return d.x; }) | ||
| .attr("cy", function(d) { return d.y; }); | ||
| }); | ||
| }); |
Oops, something went wrong.