When making these images about modules i use graphviz to render them. But just ran into http://drupal.org/project/hypergraph which looks great.
So I have to study this one!
Commands to render a .dot file are ie with non overlapping nodes
My drush patch for a module manager makes it more easier to SEE what's installed.
listing# drush mm listimagary# drush mm dot | dot -T png -o ~/graph.png
shows a module in error. (I deleted workflow_ng) scroll to the right for red