How to control node placement in graphviz (i.e. avoid edge crossings)

Question

I\'m using graphviz (dot) to generate the graph you can see below. The node in the lower left corner (red ellipse) causes annoyance as its edges cross several edges of the adjac

Answer 1

I like @smokris' [style=invis] trick for persuading graphviz to put things where you want them, by adding edges which affect layout but aren't visible.

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Another trick is the constraint attribute, which lets you add edges which are visible but don't affect layout.

If adding a new edge messes up your graph, set [constraint=false] on that edge: now graphviz will ignore it when placing nodes.