A sort of follow up/related question to this.
I\'m trying to get a grip on a large code base that has hundreds and hundreds of classes and a large inheritance hierarchy.
A good UML tool should do the trick.
Here is a list of generic UMl tools: http://en.wikipedia.org/wiki/List_of_UML_tools
There are lots out there, all with varying feature sets. Try playing with a few to see if you get the output you desire. If they free ones fail you, you might have to shell out for a good commercial grade UML tool