table of contents
g_filter(1) | GROMACS suite, VERSION 4.5.4-dev-20110404-bc5695c | g_filter(1) |
NAME¶
g_filter - frequency filters trajectories, useful for making smooth moviesSYNOPSIS¶
g_filter -f traj.xtc -s topol.tpr -n index.ndx -ol lowpass.xtc -oh highpass.xtc -[no]h -[no]version -nice int -b time -e time -dt time -[no]w -nf int -[no]all -[no]nojump -[no]fitDESCRIPTION¶
g_filter performs frequency filtering on a trajectory. The filter shape is cos(pi t/A) + 1 from -A to +A, where A is given by the option -nf times the time step in the input trajectory. This filter reduces fluctuations with period A by 85%, with period 2*A by 50% and with period 3*A by 17% for low-pass filtering. Both a low-pass and high-pass filtered trajectory can be written.FILES¶
-f traj.xtc InputTrajectory: xtc trr trj gro g96 pdb cpt
Structure+mass(db): tpr tpb tpa gro g96 pdb
Index file
Trajectory: xtc trr trj gro g96 pdb
Trajectory: xtc trr trj gro g96 pdb
OTHER OPTIONS¶
-[no]hnoPrint help info and quit
Print version info and quit
Set the nicelevel
First frame (ps) to read from trajectory
Last frame (ps) to read from trajectory
Only use frame when t MOD dt = first time (ps)
View output .xvg, .xpm, .eps and .pdb files
Sets the filter length as well as the output interval for low-pass filtering
Write all low-pass filtered frames
Remove jumps of atoms across the box
Fit all frames to a reference structure
SEE ALSO¶
gromacs(7)Mon 4 Apr 2011 |