forked from lijiext/lammps
44 lines
1.0 KiB
Plaintext
44 lines
1.0 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 planeforce command :h3
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[Syntax:]
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fix ID group-ID planeforce 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 = 3-vector that is normal to the plane :ul
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[Examples:]
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fix hold boundary planeforce 1.0 0.0 0.0 :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 in the plane specified by the normal vector (x,y,z). This is done
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by subtracting out components of force perpendicular to the plane.
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If the initial velocity of the atom is 0.0 (or in the plane), then it
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should continue to move in the plane thereafter.
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The forces due to this fix are also imposed during an energy
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minimization, invoked by the "minimize"_minimize.html command.
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[Restrictions:] none
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[Related commands:]
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"fix lineforce"_fix_lineforce.html
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[Default:] none
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