54 lines
1.2 KiB
JavaScript
54 lines
1.2 KiB
JavaScript
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var _ = require("../lodash");
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module.exports = addSubgraphConstraints;
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function addSubgraphConstraints(g, cg, vs) {
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var prev = {},
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rootPrev;
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_.forEach(vs, function(v) {
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var child = g.parent(v),
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parent,
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prevChild;
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while (child) {
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parent = g.parent(child);
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if (parent) {
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prevChild = prev[parent];
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prev[parent] = child;
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} else {
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prevChild = rootPrev;
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rootPrev = child;
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}
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if (prevChild && prevChild !== child) {
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cg.setEdge(prevChild, child);
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return;
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}
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child = parent;
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}
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});
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/*
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function dfs(v) {
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var children = v ? g.children(v) : g.children();
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if (children.length) {
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var min = Number.POSITIVE_INFINITY,
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subgraphs = [];
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_.each(children, function(child) {
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var childMin = dfs(child);
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if (g.children(child).length) {
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subgraphs.push({ v: child, order: childMin });
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}
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min = Math.min(min, childMin);
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});
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_.reduce(_.sortBy(subgraphs, "order"), function(prev, curr) {
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cg.setEdge(prev.v, curr.v);
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return curr;
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});
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return min;
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}
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return g.node(v).order;
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}
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dfs(undefined);
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*/
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}
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