Hi Elisabeth - The only explanation is that you actually DID NOT extend the box in Z direction. Look at the last line of confout.gro.
g_density -d Z gives you a [local] density versus Z coordinate. Dr. Vitaly Chaban On Mon, Apr 1, 2013 at 5:33 PM, Elisabeth <katesed...@gmail.com> wrote: > Hi Vitaly, > > I did NVT simulations and tried to obtain density profile at interface > along Z using g_density -f .trr -s .tpr -d Z but I what I see is the > density profile in the box not the interface. Box size is 3 nm and Before > NVT runsI extended Z to 6 nm. Please see the attached profile. Thanks! > -- gmx-users mailing list gmx-users@gromacs.org http://lists.gromacs.org/mailman/listinfo/gmx-users * Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/Search before posting! * Please don't post (un)subscribe requests to the list. Use the www interface or send it to gmx-users-requ...@gromacs.org. * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists