Source code visualization tools?

[Martin Fuchs]

> Is there such a thing as a source code visualization tool that makes a
> "map" of a program's source? Kind of like:
> 
>               main()
>                 |
>                 |
>              function1()
>                 /\
>                /  \
>          func2()   func3()
>             |
>             |
>           func4()

Try out Doxygen: http://www.stack.nl/~dimitri/doxygen/
It's a very nice source code documentation tool and can also display
call graphs.

Regards,

    Martin