circuit/block-diagram drawing

Question

I\'m looking for either algorithms or visualization tool for (nice) circuit/block-diagram drawing.

I am also interested in a general formulation of the problem.

Answer 1

There are alternatives to graphviz that may do the job - see e.g. infovis, protovis, tulip.

See also other related questions 1, 2, 3.

Can you explain where graphviz falls short? The only requirement you list that I'm not sure about is attaching to specific ports. I would have thought you might be able to solve that with composite shapes / subgraphs, but maybe not...?

EDIT: Another option, particularly if you're looking at software engineering diagrams. Have you considered the eclipse gmp toolkit? It's what's used to build e.g. the UML2 editor tools.

hth.