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I have here generated a large .dot file of my facebook friends’ graph with fb-map. It has 287 nodes and almost 2000 edges. I’m using dot and neato to generate a .png image, using the overlap="orthoyx" paramethers, but it doesn’t give a nice effect. Too many overlapped edges.
Do you know any set of options to manage such huge graphs and draw them in an eye-readable way with Graphviz?
The igraph library layout algorithms seem to cope much better with very large graphs than dot does. It even includes an implementation of Kamada-Kawai and Fruchterman-Reingold layout algorithms.
There are up-to-date python bindings available, not to mention nice documentation and tutorials.