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fix_group.h
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Mon, Nov 11, 20:44

fix_group.h
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/* -*- c++ -*- ----------------------------------------------------------
LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
http://lammps.sandia.gov, Sandia National Laboratories
Steve Plimpton, sjplimp@sandia.gov
Copyright (2003) Sandia Corporation. Under the terms of Contract
DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
certain rights in this software. This software is distributed under
the GNU General Public License.
See the README file in the top-level LAMMPS directory.
------------------------------------------------------------------------- */
#ifdef FIX_CLASS
FixStyle(GROUP,FixGroup)
#else
#ifndef LMP_FIX_GROUP_H
#define LMP_FIX_GROUP_H
#include "fix.h"
namespace LAMMPS_NS {
class FixGroup : public Fix {
public:
FixGroup(class LAMMPS *, int, char **);
~FixGroup();
int setmask();
void init();
void setup(int);
void post_integrate();
private:
int gbit,gbitinverse;
int regionflag,varflag;
int iregion,ivar;
char *idregion,*idvar;
class Region *region;
void set_group();
};
}
#endif
#endif
/* ERROR/WARNING messages:
E: Illegal ... command
Self-explanatory. Check the input script syntax and compare to the
documentation for the command. You can use -echo screen as a
command-line option when running LAMMPS to see the offending line.
E: Region ID for group dynamic does not exist
Self-explanatory.
E: Variable name for group dynamic does not exist
Self-explanatory.
E: Group dynamic parent group cannot be dynamic
Self-explanatory.
E: Variable for group dynamic is invalid style
The variable must be an atom-style variable.
W: One or more dynamic groups may not be updated at correct point in timestep
If there are other fixes that act immediately after the intitial stage
of time integration within a timestep (i.e. after atoms move), then
the command that sets up the dynamic group should appear after those
fixes. This will insure that dynamic group assignements are made
after all atoms have moved.
*/

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