home | help
GMX-GENCONF(1)			     GROMACS			  GMX-GENCONF(1)

NAME
     gmx-genconf - Multiply a conformation in 'random' orientations

SYNOPSIS
	gmx genconf [-f [<.gro/.g96/...>]] [-trj [<.xtc/.trr/...>]]
		    [-o [<.gro/.g96/...>]] [-nbox <vector>] [-dist <vector>]
		    [-seed <int>] [-[no]rot] [-maxrot <vector>]
		    [-[no]renumber]

DESCRIPTION
     gmx  genconf  multiplies a given coordinate file by simply stacking them on
     top of each other, like a small child playing with wooden blocks.	The pro-
     gram makes a grid of user-defined proportions (-nbox), and interspaces  the
     grid point with an extra space -dist.

     When  option  -rot  is  used the program does not check for overlap between
     molecules on grid points. It is recommended to make the box  in  the  input
     file at least as big as the coordinates + van der Waals radius.

     If  the optional trajectory file is given, conformations are not generated,
     but read from this file and translated appropriately to build the grid.

OPTIONS
     Options to specify input files:

     -f [<.gro/.g96/...>] (conf.gro)
	    Structure file: gro g96 pdb brk ent esp tpr

     -trj [<.xtc/.trr/...>] (traj.xtc) (Optional)
	    Trajectory: xtc trr cpt gro g96 pdb tng h5md

     Options to specify output files:

     -o [<.gro/.g96/...>] (out.gro)
	    Structure file: gro g96 pdb brk ent esp

     Other options:

     -nbox <vector> (1 1 1)
	    Number of boxes

     -dist <vector> (0 0 0)
	    Distance between boxes

     -seed <int> (0)
	    Random generator seed (0 means generate)

     -[no]rot (no)
	    Randomly rotate conformations

     -maxrot <vector> (180 180 180)
	    Maximum random rotation

     -[no]renumber (yes)
	    Renumber residues

KNOWN ISSUES
     * The program should allow for random displacement of lattice points.

SEE ALSO
     gmx(1)

     More information about GROMACS is available at <http://www.gromacs.org/>.

COPYRIGHT
     2026, GROMACS development team

2026.3				  Jun 25, 2026			  GMX-GENCONF(1)

home | help