[AMBER] Cpptraj: distance does not work with center of mass

From: Vlastimil Zíma <zima.karlov.mff.cuni.cz>
Date: Thu, 24 Jan 2013 09:47:05 +0100

Hi,

this week I encountered troubles with cpptraj. I tried to get distance of
two atoms from DCD trajectory, but cpptraj returned only 0.0 for all frames.

parm ../initial_neutral.psf
trajin trajectory.dcd
distance s1_bond1 :1243.O4 :451.HZ1 out poster/k868_popc.dat

When I use geometric center

distance s1_bond1 :1243.O4 :451.HZ1 out poster/k868_popc.dat geom

everything works fine.

I expect some bug in cpptraj. I use Amber Tools 12 with bugfixes 1-24.

VZ
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Received on Thu Jan 24 2013 - 01:00:03 PST
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