Visualising / overview tools

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Hi all.
I'm taking over a scientific programming project from a colleague,
of which is in about 60000 lines of perl.

Does anyone have recommendations for good tools to help me get an
overview of the code, perhaps some sort of visualisation of what calls
what etc.? We run Linux.


Re: Visualising / overview tools

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B::Xref will generate a full cross-reference of what calls what, but
with a large program the output may be to unwieldy to be terribly
useful. How modular is the code, and how well documented? I would have
expected this sort of thing to be fairly clear from the docs.


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