1 .TH trjorder 1 "Thu 16 Oct 2008"
3 trjorder - orders molecules according to their distance to a group
10 .BI "-n" " index.ndx "
11 .BI "-o" " ordered.xtc "
12 .BI "-nshell" " nshell.xvg "
24 trjorder orders molecules according to the smallest distance
25 to atoms in a reference group. It will ask for a group of reference
26 atoms and a group of molecules. For each frame of the trajectory
27 the selected molecules will be reordered according to the shortest
28 distance between atom number
30 in the molecule and all the
31 atoms in the reference group. All atoms in the trajectory are written
32 to the output trajectory.
35 trjorder can be useful for e.g. analyzing the n waters closest to a
37 In that case the reference group would be the protein and the group
38 of molecules would consist of all the water atoms. When an index group
39 of the first n waters is made, the ordered trajectory can be used
40 with any Gromacs program to analyze the n closest waters.
44 If the output file is a pdb file, the distance to the reference target
45 will be stored in the B-factor field in order to color with e.g. rasmol.
51 the number of molecules within a shell
54 around the refernce group are printed.
58 Trajectory: xtc trr trj gro g96 pdb cpt
62 Structure+mass(db): tpr tpb tpa gro g96 pdb
68 .BI "-o" " ordered.xtc"
70 Trajectory: xtc trr trj gro g96 pdb
72 .BI "-nshell" " nshell.xvg"
78 Print help info and quit
80 .BI "-nice" " int" " 19"
83 .BI "-b" " time" " 0 "
84 First frame (ps) to read from trajectory
86 .BI "-e" " time" " 0 "
87 Last frame (ps) to read from trajectory
89 .BI "-dt" " time" " 0 "
90 Only use frame when t MOD dt = first time (ps)
92 .BI "-[no]xvgr" "yes "
93 Add specific codes (legends etc.) in the output xvg files for the xmgrace program
96 Number of atoms in a molecule
99 Atom used for the distance calculation
102 Use the distance to the center of mass of the reference group
104 .BI "-r" " real" " 0 "
105 Cutoff used for the distance calculation when computing the number of molecules in a shell around e.g. a protein