I think I have found the answer by adding " flags = flags | TRX_READ_V | TRX_READ_F ;".
thanks to all. On Sat, Nov 29, 2008 at 12:53 PM, friendli <[EMAIL PROTECTED]> wrote: > I have checked with gmxcheck and velocities and forces are output in .trr. > I am playing template.c to try to learn more about GMX. > > I read gmx_traj.c, but not quite understand. > Can you give me a example, for instance the flags to be set in template.c > to read the velcocities? > > thank you > > Qiang > > On Fri, Nov 28, 2008 at 1:41 AM, Tsjerk Wassenaar <[EMAIL PROTECTED]>wrote: > >> Hi Qiang, >> >> You'll have to check whether the frame contains velocities (fr.bV == >> TRUE) or forces (fr.bF == TRUE). Also make sure you set the flags >> right to read velocities/forces. Check the source of g_traj or trjconv >> for examples. >> >> Cheers, >> >> Tsjerk >> >> On Fri, Nov 28, 2008 at 10:33 AM, Mark Abraham <[EMAIL PROTECTED]> >> wrote: >> > friendli wrote: >> >> >> >> Dear all users, >> >> >> >> A silly question: >> >> >> >> I want to print out the velocities and forces in the trajectories using >> >> template.c. >> > >> > g_traj or gmxdump do that. >> > >> > Mark >> > _______________________________________________ >> > gmx-users mailing list gmx-users@gromacs.org >> > http://www.gromacs.org/mailman/listinfo/gmx-users >> > Please search the archive at http://www.gromacs.org/search before >> posting! >> > Please don't post (un)subscribe requests to the list. Use the www >> interface >> > or send it to [EMAIL PROTECTED] >> > Can't post? Read http://www.gromacs.org/mailing_lists/users.php >> > >> >> >> >> -- >> Tsjerk A. Wassenaar, Ph.D. >> Junior UD (post-doc) >> Biomolecular NMR, Bijvoet Center >> Utrecht University >> Padualaan 8 >> 3584 CH Utrecht >> The Netherlands >> P: +31-30-2539931 >> F: +31-30-2537623 >> _______________________________________________ >> gmx-users mailing list gmx-users@gromacs.org >> http://www.gromacs.org/mailman/listinfo/gmx-users >> Please search the archive at http://www.gromacs.org/search before >> posting! >> Please don't post (un)subscribe requests to the list. Use the >> www interface or send it to [EMAIL PROTECTED] >> Can't post? Read http://www.gromacs.org/mailing_lists/users.php >> > >
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