forked from lijiext/lammps
40 lines
913 B
HTML
40 lines
913 B
HTML
<HTML>
|
|
<CENTER><A HREF = "http://lammps.sandia.gov">LAMMPS WWW Site</A> - <A HREF = "Manual.html">LAMMPS Documentation</A> - <A HREF = "Section_commands.html#comm">LAMMPS Commands</A>
|
|
</CENTER>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<HR>
|
|
|
|
<H3>fix com command
|
|
</H3>
|
|
<P><B>Syntax:</B>
|
|
</P>
|
|
<PRE>fix ID group-ID com N file
|
|
</PRE>
|
|
<UL><LI>ID, group-ID are documented in <A HREF = "fix.html">fix</A> command
|
|
<LI>com = style name of this fix command
|
|
<LI>N = compute center-of-mass every this many timesteps
|
|
<LI>file = filename to write center-of-mass info to
|
|
</UL>
|
|
<P><B>Examples:</B>
|
|
</P>
|
|
<PRE>fix 1 all com 100 com.out
|
|
</PRE>
|
|
<P><B>Description:</B>
|
|
</P>
|
|
<P>Compute the center-of-mass of the group of atoms every N steps,
|
|
including all effects due to atoms passing thru periodic boundaries.
|
|
Write the results to the specified file.
|
|
</P>
|
|
<P><B>Restrictions:</B> none
|
|
</P>
|
|
<P><B>Related commands:</B> none
|
|
</P>
|
|
<P><B>Default:</B> none
|
|
</P>
|
|
</HTML>
|