On 28/11/2010 12:12 AM, ???????????? wrote:
Dear gmxers,
I am trying to perform an analysis on the trjectory file using xdrfile
library. First of all, I want to save the coordinates of all atoms in
three 2D-arrays, i.e. xx[step-1][natom-1], yy[step-1][natom-1],
zz[step-1][natom-1]. How to do so? Could you give me some hints,
please? If you had happened to do so, could you kindly send the code
to me? Thanks a lot.
Yours sincerely,
Chaofu Wu, Dr.
You probably don't want to do that, because it doesn't scale to large
numbers of trajectory frames - you will run out of memory eventually. If
at all possible you should structure your algorithm to deal with one
frame at a time. There are already GROMACS functions that make that
easy. Pick a GROMACS trajectory analysis tool that sounds fairly simple
and vaguely similar to what you want to do, and look at how its code works.
Mark
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