From: Peter Freddolino (
Date: Thu Jul 10 2008 - 00:27:41 CDT

You'll probably get lots of suggestions, but I'd nominate matplotlib (a
python module for making these sorts of plots) as at least fulfilling
the flexible and free criteria. Hopefully 2 out of 3 isn't bad. Whether
it is considered easy to use depends on your definition of "easy" and on
personal experience.
Peter wrote:
> Greetings,
> I have calculated some structure data using VMD and
> would like to make a contour plot.
> Can anyone suggest a flexible, easy-to-use,
> and above all free jiffy/program for linux/windows
> for this purpose?
> Thanks,
> aaron++