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Add support for manual ranking #271

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Add support for manual ranking #271

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2 changes: 1 addition & 1 deletion lib/layout.js
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Original file line number Diff line number Diff line change
Expand Up @@ -97,7 +97,7 @@ function updateInputGraph(inputGraph, layoutGraph) {
var graphNumAttrs = ["nodesep", "edgesep", "ranksep", "marginx", "marginy"];
var graphDefaults = { ranksep: 50, edgesep: 20, nodesep: 50, rankdir: "tb" };
var graphAttrs = ["acyclicer", "ranker", "rankdir", "align"];
var nodeNumAttrs = ["width", "height"];
var nodeNumAttrs = ["width", "height", "rank"];
var nodeDefaults = { width: 0, height: 0 };
var edgeNumAttrs = ["minlen", "weight", "width", "height", "labeloffset"];
var edgeDefaults = {
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6 changes: 6 additions & 0 deletions lib/rank/index.js
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Expand Up @@ -27,10 +27,16 @@ module.exports = rank;
* fix them up later.
*/
function rank(g) {
var ranker = g.graph().ranker;
if (ranker instanceof Function) {
return ranker(g)
}

switch(g.graph().ranker) {
case "network-simplex": networkSimplexRanker(g); break;
case "tight-tree": tightTreeRanker(g); break;
case "longest-path": longestPathRanker(g); break;
case "none": break;
default: networkSimplexRanker(g);
}
}
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