Invert (as in upend) stack.

[Alex Vaughan]

Hi,

Is there an existing function/macro to invert a stack (as in upend,
flip upside-down, or reverse the z-ordering)?  I have looked around a
good deal, but can't seem to find what I'm looking for.  I'm happy to
write it myself, if not, but I thought I'd ask first.

Thanks,
Alex

--
Alex Vaughan
Integrative and Organismal Biology
Department of Biosciences, Stanford University
Email :: [hidden email]
Phone :: [phone]

If the shortest path
is a straight line,
I will be late. -  Nancy Boutilier
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