61 lines
1.7 KiB
C++
61 lines
1.7 KiB
C++
/* -*- c++ -*- ----------------------------------------------------------
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LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
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https://www.lammps.org/, Sandia National Laboratories
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LAMMPS development team: developers@lammps.org
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Copyright (2003) Sandia Corporation. Under the terms of Contract
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DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
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certain rights in this software. This software is distributed under
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the GNU General Public License.
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See the README file in the top-level LAMMPS directory.
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------------------------------------------------------------------------- */
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/* ----------------------------------------------------------------------
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Contributing author: Gabriel Alkuino (Syracuse University) - gsalkuin@syr.edu
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Modified from fix_efield
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------------------------------------------------------------------------- */
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#ifdef FIX_CLASS
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// clang-format off
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FixStyle(epot/lepton,FixEpotLepton);
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// clang-format on
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#else
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#ifndef LMP_FIX_EPOT_LEPTON_H
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#define LMP_FIX_EPOT_LEPTON_H
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#include "fix.h"
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namespace LAMMPS_NS {
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class FixEpotLepton : public Fix {
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public:
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FixEpotLepton(class LAMMPS *, int, char **);
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~FixEpotLepton() override;
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int setmask() override;
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void init() override;
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void setup(int) override;
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void min_setup(int) override;
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void post_force(int) override;
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void post_force_respa(int, int, int) override;
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void min_post_force(int) override;
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double compute_scalar() override;
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double compute_vector(int) override;
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protected:
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char *idregion;
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class Region *region;
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int ilevel_respa;
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std::string expr;
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int force_flag;
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double h = -1.0;
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double qe2f, mue2e;
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double fsum[4], fsum_all[4];
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};
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} // namespace LAMMPS_NS
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#endif
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#endif
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