/usr/include/liggghts/fix_mesh_surface.h is in libliggghts-dev 3.7.0+repack1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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This is the
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╚══════╝╚═╝ ╚═════╝ ╚═════╝ ╚═════╝ ╚═╝ ╚═╝ ╚═╝ ╚══════╝®
DEM simulation engine, released by
DCS Computing Gmbh, Linz, Austria
http://www.dcs-computing.com, office@dcs-computing.com
LIGGGHTS® is part of CFDEM®project:
http://www.liggghts.com | http://www.cfdem.com
Core developer and main author:
Christoph Kloss, christoph.kloss@dcs-computing.com
LIGGGHTS® is open-source, distributed under the terms of the GNU Public
License, version 2 or later. It is distributed in the hope that it will
be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. You should have
received a copy of the GNU General Public License along with LIGGGHTS®.
If not, see http://www.gnu.org/licenses . See also top-level README
and LICENSE files.
LIGGGHTS® and CFDEM® are registered trade marks of DCS Computing GmbH,
the producer of the LIGGGHTS® software and the CFDEM®coupling software
See http://www.cfdem.com/terms-trademark-policy for details.
-------------------------------------------------------------------------
Contributing author and copyright for this file:
Christoph Kloss (JKU Linz, DCS Computing GmbH, Linz)
Philippe Seil (JKU Linz)
Arno Mayrhofer (CFDEMresearch GmbH, DCS Computing GmbH, Linz)
Copyright 2012- DCS Computing GmbH, Linz
Copyright 2009-2012 JKU Linz
Copyright 2016- CFDEMresearch GmbH, Linz
------------------------------------------------------------------------- */
#ifdef FIX_CLASS
FixStyle(mesh/surface,FixMeshSurface)
FixStyle(mesh/surface/planar,FixMeshSurface)
#else
#ifndef LMP_FIX_SURFACE_MESH_H
#define LMP_FIX_SURFACE_MESH_H
#include "fix_mesh.h"
#include "tri_mesh.h"
#include "fix_contact_history_mesh.h"
#include "fix_contact_property_atom.h"
#include "fix_neighlist_mesh.h"
#include "custom_value_tracker.h"
#include "mesh_module.h"
#include <map>
#include <vector>
#include <string>
#include <algorithm>
#include <cstddef>
namespace LAMMPS_NS
{
class FixMeshSurface : public FixMesh
{
public:
FixMeshSurface(LAMMPS *lmp, int narg, char **arg);
virtual ~FixMeshSurface();
virtual void post_create_pre_restart();
virtual void post_create();
virtual void pre_delete(bool unfixflag);
virtual void init();
virtual void setup(int vflag);
virtual int setmask();
virtual void setup_pre_force(int);
virtual void pre_force(int);
virtual void initial_integrate(int);
virtual void final_integrate();
virtual void end_of_step();
virtual int modify_param(int narg, char **arg);
virtual double compute_vector (int);
virtual void createWallNeighList(int igrp);
virtual class FixNeighlistMesh* createOtherNeighList(int igrp,const char *nId);
void createContactHistory(int dnum);
void createMeshforceContact();
void createMeshforceContactStress();
void createMulticontactData();
void deleteWallNeighList();
void deleteOtherNeighList(const char *nId);
void deleteAllOtherNeighList();
void deleteContactHistory();
void deleteMeshforceContact();
void deleteMeshforceContactStress();
void deleteMeshMulticontactData();
MeshModule* get_module(std::string name);
void add_particle_contribution(int ip, double *frc, double *delta, int iTri, double *v_wall);
bool trackStress();
inline int atomTypeWall()
{ return atom_type_mesh_;}
inline class FixContactHistoryMesh* contactHistory()
{ return fix_contact_history_mesh_;}
inline class FixNeighlistMesh* meshNeighlist()
{ return fix_mesh_neighlist_;}
inline bool hasNeighList()
{ return fix_mesh_neighlist_?true:false; }
inline bool hasOtherNeighList()
{ return list_other_neighlist_.size() > 0; }
inline class FixContactPropertyAtomWall* meshforceContact()
{ return fix_meshforce_contact_;}
inline class FixContactPropertyAtomWall* meshforceContactStress()
{ return fix_meshforce_contact_stress_;}
inline class FixContactPropertyAtomWall* meshMulticontactData()
{ return fix_mesh_multicontact_data_;}
inline class TriMesh *triMesh()
{ return static_cast<TriMesh*>(mesh()); }
bool surfaceVel()
{ return (velFlag_ || angVelFlag_); }
void dumpAdd()
{ n_dump_active_++; }
void dumpRemove()
{ n_dump_active_--; }
inline int get_groupbit() const
{ return groupbit; }
inline int get_nevery() const
{ return nevery; }
inline bigint* get_next_reneighbor_ptr()
{ return &next_reneighbor; }
void set_global_freq(const unsigned int global_freq_)
{ global_freq = global_freq_; }
void set_extvector(const unsigned int extvector_)
{ extvector = extvector_; }
void set_time_depend(const unsigned int time_depend_)
{ time_depend = time_depend_; }
void set_nevery(const unsigned int nevery_)
{ nevery = nevery_; }
protected:
int getCreateMeshTriCount()
{ return extrusion_tri_count_; }
double * getCreateMeshTriNode(const int i)
{ return &(extrusion_tri_nodes_[i*3]); }
class FixContactHistoryMesh *fix_contact_history_mesh_;
class FixNeighlistMesh *fix_mesh_neighlist_;
class FixContactPropertyAtomWall *fix_meshforce_contact_;
class FixContactPropertyAtomWall *fix_meshforce_contact_stress_;
class FixContactPropertyAtomWall *fix_mesh_multicontact_data_;
// list of neighbor lists created by createOtherNeighList
std::map<std::string, FixNeighlistMesh*> list_other_neighlist_;
private:
void initVel();
void setVel();
void initAngVel();
void setAngVel();
// surface velocity
bool velFlag_;
double vSurf_[3];
char *vSurfStrX_, *vSurfStrY_, *vSurfStrZ_;
int vSurfVarX_, vSurfVarY_, vSurfVarZ_;
int vSurfStyleX_, vSurfStyleY_, vSurfStyleZ_;
// rotational surf vel
bool angVelFlag_;
double origin_[3];
double axis_[3];
double omegaSurf_;
char *omegaStr_;
int omegaVar_, omegaStyle_;
// flag if dump mesh/* or dump stl is active
int n_dump_active_;
// mesh curvature
double curvature_;
bool curvature_tolerant_;
// extrude mesh
bool extrude_mesh_;
double extrusion_length_;
int extrusion_tri_count_;
double *extrusion_tri_nodes_;
bool extrusion_created_;
// active mesh modules
typedef MeshModule *(*MeshModuleCreator)(LAMMPS *lmp, int &iarg_, int narg, char **arg, FixMeshSurface *fix_mesh);
std::map<std::string, MeshModule*> active_mesh_modules;
std::vector<std::string> mesh_module_order;
template <typename T> static MeshModule *meshmodule_creator(LAMMPS *lmp, int &iarg_, int narg, char **arg, FixMeshSurface *fix_mesh);
};
} /* namespace LAMMPS_NS */
#endif /* LMP_FIX_MESH_H */
#endif /* FIX_CLASS */
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