forked from lijiext/lammps
52 lines
1.5 KiB
Plaintext
52 lines
1.5 KiB
Plaintext
"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
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:link(lws,http://lammps.sandia.gov)
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:link(ld,Manual.html)
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:link(lc,Section_commands.html#comm)
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:line
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fix lineforce command :h3
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[Syntax:]
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fix ID group-ID lineforce x y z :pre
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ID, group-ID are documented in "fix"_fix.html command
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lineforce = style name of this fix command
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x y z = direction of line as a 3-vector :ul
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[Examples:]
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fix hold boundary lineforce 0.0 1.0 1.0 :pre
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[Description:]
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Adjust the forces on each atom in the group so that it's motion will
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be along the linear direction specified by the vector (x,y,z). This
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is done by subtracting out components of force perpendicular to the
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line.
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If the initial velocity of the atom is 0.0 (or along the line), then
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it should continue to move along the line thereafter.
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[Restart, fix_modify, output, run start/stop, minimize info:]
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No information about this fix is written to "binary restart
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files"_restart.html. None of the "fix_modify"_fix_modify.html options
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are relevant to this fix. No global scalar or vector or per-atom
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quantities are stored by this fix for access by various "output
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commands"_Section_howto.html#4_15. No parameter of this fix can be
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used with the {start/stop} keywords of the "run"_run.html command.
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The forces due to this fix are imposed during an energy minimization,
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invoked by the "minimize"_minimize.html command.
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[Restrictions:] none
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[Related commands:]
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"fix planeforce"_fix_planeforce.html
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[Default:] none
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