g_mindist

Main Table of Contents

VERSION 3.1
Thu 28 Feb 2002


Description

g_mindist computes the distance between one group and a number of other groups. Both the minimum distance and the number of contacts within a given distance are written to two separate output files.

With option -pi the minimum distance of a group to its periodic image is plotted. This is useful for checking if a protein has seen its periodic image during a simulation. Only one shift in each direction is considered, giving a total of 26 shifts. It also plots the maximum distance within the group and the lengths of the three box vectors. This option is very slow.

Other programs that calculate distances are g_dist and g_bond.

Files

optionfilenametypedescription
-f traj.xtc Input Generic trajectory: xtc trr trj gro g96 pdb
-s topol.tpr Input, Opt. Structure+mass(db): tpr tpb tpa gro g96 pdb
-n index.ndx Input, Opt. Index file
-od mindist.xvg Output xvgr/xmgr file
-on numcont.xvg Output xvgr/xmgr file
-o atm-pair.out Output Generic output file

Other options

optiontypedefaultdescription
-[no]h bool no Print help info and quit
-[no]X bool no Use dialog box GUI to edit command line options
-nice int 19 Set the nicelevel
-b time -1 First frame (ps) to read from trajectory
-e time -1 Last frame (ps) to read from trajectory
-dt time -1 Only use frame when t MOD dt = first time (ps)
-[no]w bool no View output xvg, xpm, eps and pdb files
-[no]matrix bool no Calculate half a matrix of group-group distances
-d real 0.6 Distance for contacts
-[no]pi bool no Calculate minimum distance with periodic images


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