From: Brian Kidd (bkidd_at_u.washington.edu)
Date: Tue May 22 2007 - 18:55:55 CDT

Hello,

I'd like to count the number of atoms within a cylindrical volume and
I was wondering if there was a way to create an atomselection based
on a geometric criteria, such as 10 < z < 15?

Thanks,
-Brian