Function sugiyama

sugiyama(...args: never[]): DefaultSugiyama
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.
Parameters
- ...args: never[]
Returns DefaultSugiyama
Example
To use the default layout:
```
const grf: Graph = ...
const layout = sugiyama();
layout(dag);
for (const node of dag.nodes()) {
  console.log(node.x, node.y);
}
```
Example
To use optimal decrossing, which will only work for small graphs:
```
const grf: Graph = ...
const layout = sugiyama().decross(decrossOpt());
layout(dag);
for (const node of dag.nodes()) {
  console.log(node.x, node.y);
}
```
- Defined in sugiyama/index.ts:470