VMD-L Mailing List

From: Axel Kohlmeyer (axel.kohlmeyer_at_theochem.ruhr-uni-bochum.de)
Date: Mon Apr 18 2005 - 10:38:14 CDT

On Mon, 18 Apr 2005, Mgr. Lubos Vrbka wrote:

LV> hello,

hello lubos,

LV> is it possible to somehow read (gzip) compressed trajectories to vmd?

yes. you can do it even without any modification to VMD.
... at least with some platforms. check out http://zlibc.linux.lu/

just install it and do:

env LD_PRELOAD=/usr/local/uncompress.o vmd
i have been using it for _ages_ on linux machines.
it works very well and on top of that, read of large
ASCII files via NFS is significantly faster.

regards,
        axel.

LV>
LV> i tried googling through the archives and found a message mentioning
LV> undocumented usage of zcat in older versions of file reader plugins.
LV>
LV> would it be possible to use zlib functions in the plugins for reading
LV> such files into vmd? zlib handles both compressed and noncompressed
LV> files in the same way...
LV>
LV> regards,
LV> lubos
LV>
LV> 

-- 
=======================================================================
Dr. Axel Kohlmeyer   e-mail: axel.kohlmeyer_at_theochem.ruhr-uni-bochum.de
Lehrstuhl fuer Theoretische Chemie          Phone: ++49 (0)234/32-26673
Ruhr-Universitaet Bochum - NC 03/53         Fax:   ++49 (0)234/32-14045
D-44780 Bochum  http://www.theochem.ruhr-uni-bochum.de/~axel.kohlmeyer/
=======================================================================
If you make something idiot-proof, the universe creates a better idiot.