/* ----------------------------------------------------------------------
   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 REGION_CLASS

RegionStyle(union,RegUnion)

#else

#ifndef LMP_REGION_UNION_H
#define LMP_REGION_UNION_H

#include "region.h"

namespace LAMMPS_NS {

class RegUnion : public Region {
 public:
  RegUnion(class LAMMPS *, int, char **);
  ~RegUnion();
  void init();
  int dynamic_check();
  int inside(double, double, double);
  int surface_interior(double *, double);
  int surface_exterior(double *, double);
  void shape_update();

 private:
  int nregion;
  int *list;
};

}

#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 union region ID does not exist

One or more of the region IDs specified by the region union command
does not exist.

*/
