[Haskell-cafe] Re: Call Graph Tool?

C.M.Brown writes:

I have approx. 100+ source files and I was wondering if anyone has a tool that would let me see a visual call graph for the source files; i.e. a visual hierarchy of which module is imported by what, and so forth.

For my maths honours thesis, I'll be writing a tool to help people understand the relationships in their Haskell code. I'm hoping to have a visualisation component in there, but that's a relatively low priority. Assuming I get it included, is there any features in particular you'd want to see in there? Note that if I do have it produce visualisations, they'll be static images as part of an analysis report rather than being interactive.