Re: convert .dcd into .trr

From: L. Michel Espinoza-Fonseca (
Date: Tue May 02 2006 - 13:07:47 CDT

You can open your trajectory using VMD, then save another trajectory
as .trr file. Just go to "save coordinates" and choose the format
you're interested in.

Hope it helps,

2006/5/2, Shirley Li <>:
> Dear NAMD expert,
> I have a question about converting NAMD dcd file into .trr format for
> GROMACS analysis. With "catdcd", the timing information gets lost. So
> when the .trr file is used for g_covar (GROMACS tool) in the following way:
> for ((i=500;i<=10000;i+=500)); do g_covar -f prod0t10.trr -s prod10.pdb
> -mwa -o eigen$i.xvg -e $i < G-TOOLS.IN/; done
> The output files eigen$i.xvg will be the same for all $i. I wonder if
> anybody has any clue what's wrong. Is there any other way to convert .dcd
> into .trr?
> Any information/suggestion will be appreciated.
> Shirley
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