Function sugiyama

construct a new Sugiyama with the default settings

The sugiyama layout takes a three step layering approach. First it calls Sugiyama#layering to assign a layer to each node. Then it calls Sugiyama#decross to arrange nodes in each layer to minimize edge crossings. Finally it calls Sugiyama#coord to assign actual coordinates given the ordering.

Finally, you can also tweak the standard settings of Sugiyama#nodeSize, Sugiyama#gap, and Sugiyama#tweaks. Note that Rank can be set in some Layering operators.

const grf: Graph = ...
const layout = sugiyama();
layout(dag);
for (const node of dag.nodes()) {
  console.log(node.x, node.y);
}
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const grf: Graph = ...
const layout = sugiyama().decross(decrossOpt());
layout(dag);
for (const node of dag.nodes()) {
  console.log(node.x, node.y);
}
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