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lammps/src/fix_wall_region.h
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fix_wall_region.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(wall/region,FixWallRegion)
#else
#ifndef LMP_FIX_WALL_REGION_H
#define LMP_FIX_WALL_REGION_H
#include "fix.h"
namespace LAMMPS_NS {
class FixWallRegion : public Fix {
public:
FixWallRegion(class LAMMPS *, int, char **);
~FixWallRegion();
int setmask();
void init();
void setup(int);
void min_setup(int);
void post_force(int);
void post_force_respa(int, int, int);
void min_post_force(int);
double compute_scalar();
double compute_vector(int);
private:
int style,iregion;
double epsilon,sigma,cutoff;
int eflag;
double ewall[4],ewall_all[4];
int ilevel_respa;
char *idregion;
double coeff1,coeff2,coeff3,coeff4,offset;
double eng,fwall;
void lj93(double);
void lj126(double);
void colloid(double, double);
void harmonic(double);
};
}
#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 fix wall/region does not exist
Self-explanatory.
E: Fix wall/region cutoff <= 0.0
Self-explanatory.
E: Fix wall/region colloid requires atom style sphere
Self-explanatory.
E: Fix wall/region colloid requires extended particles
One of the particles has radius 0.0.
E: Particle outside surface of region used in fix wall/region
Particles must be inside the region for energy/force to be calculated.
A particle outside the region generates an error.
*/
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