1 .TH g_traj 1 "Thu 16 Oct 2008"
3 g_traj - plots x, v and f of selected atoms/groups (and more) from a trajectory
10 .BI "-n" " index.ndx "
11 .BI "-ox" " coord.xvg "
12 .BI "-oxt" " coord.xtc "
13 .BI "-ov" " veloc.xvg "
14 .BI "-of" " force.xvg "
16 .BI "-ot" " temp.xvg "
17 .BI "-ekt" " ektrans.xvg "
18 .BI "-ekr" " ekrot.xvg "
19 .BI "-vd" " veldist.xvg "
20 .BI "-cv" " veloc.pdb "
21 .BI "-cf" " force.pdb "
22 .BI "-av" " all_veloc.xvg "
23 .BI "-af" " all_force.xvg "
43 g_traj plots coordinates, velocities, forces and/or the box.
46 the coordinates, velocities and forces are
47 calculated for the center of mass of each group.
50 is set, the numbers in the index file are
51 interpreted as molecule numbers and the same procedure as with
54 is used for each molecule.
59 plots the temperature of each group,
60 provided velocities are present in the trajectory file.
61 No corrections are made for constrained degrees of freedom!
71 plot the translational and
72 rotational kinetic energy of each group,
73 provided velocities are present in the trajectory file.
83 write the average velocities
84 and average forces as temperature factors to a pdb file with
85 the average coordinates. The temperature factors are scaled such
86 that the maximum is 10. The scaling can be changed with the option
89 . To get the velocities or forces of one
95 desired frame. When averaging over frames you might need to use
98 option to obtain the correct average coordinates.
99 If you select either of these option the average force and velocity
100 for each atom are written to an xvg file as well
110 computes a velocity distribution, i.e. the
111 norm of the vector is plotted. In addition in the same graph
112 the kinetic energy distribution is given.
116 Trajectory: xtc trr trj gro g96 pdb cpt
118 .BI "-s" " topol.tpr"
120 Structure+mass(db): tpr tpb tpa gro g96 pdb
122 .BI "-n" " index.ndx"
126 .BI "-ox" " coord.xvg"
130 .BI "-oxt" " coord.xtc"
132 Trajectory: xtc trr trj gro g96 pdb cpt
134 .BI "-ov" " veloc.xvg"
138 .BI "-of" " force.xvg"
146 .BI "-ot" " temp.xvg"
150 .BI "-ekt" " ektrans.xvg"
154 .BI "-ekr" " ekrot.xvg"
158 .BI "-vd" " veldist.xvg"
162 .BI "-cv" " veloc.pdb"
164 Protein data bank file
166 .BI "-cf" " force.pdb"
168 Protein data bank file
170 .BI "-av" " all_veloc.xvg"
174 .BI "-af" " all_force.xvg"
180 Print help info and quit
182 .BI "-nice" " int" " 19"
185 .BI "-b" " time" " 0 "
186 First frame (ps) to read from trajectory
188 .BI "-e" " time" " 0 "
189 Last frame (ps) to read from trajectory
191 .BI "-dt" " time" " 0 "
192 Only use frame when t MOD dt = first time (ps)
194 .BI "-tu" " enum" " ps"
210 View output xvg, xpm, eps and pdb files
212 .BI "-[no]xvgr" "yes "
213 Add specific codes (legends etc.) in the output xvg files for the xmgrace program
216 Plot data for the com of each group
219 Index contains molecule numbers iso atom numbers
221 .BI "-[no]nojump" "no "
222 Remove jumps of atoms across the box
233 .BI "-ng" " int" " 1"
234 Number of groups to consider
239 .BI "-bin" " real" " 1 "
240 Binwidth for velocity histogram (nm/ps)
242 .BI "-scale" " real" " 0 "
243 Scale factor for pdb output, 0 is autoscale