From: Olaf Lenz (olenz_at_icp.uni-stuttgart.de)
Date: Tue Oct 08 2013 - 03:31:45 CDT

Hi!

For a tutorial, I wanted my students to visualize all pairs of particles
in a system that are closer than a given distance $a$. I thought this to
be a simple application of "within" selection, something like:

  exwithin 1 of all

Unfortunately, this will not show anything. Finally, I noticed that it
is not actually that simple, and I was not able to solve the problem.
Does anybody have an idea how to do that? It would be really useful!

Olaf

-- 
Dr. rer. nat. Olaf Lenz
Institut für Computerphysik, Allmandring 3, D-70569 Stuttgart
Phone: +49-711-685-63607