overlap_coupling.h

Go to the documentation of this file.

// The libMesh Finite Element Library.
// Copyright (C) 2002-2026 Benjamin S. Kirk, John W. Peterson, Roy H. Stogner
 
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
 
// This library 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.  See the GNU
// Lesser General Public License for more details.
 
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
 
 
#ifndef LIBMESH_OVERLAP_COUPLING_H
#define LIBMESH_OVERLAP_COUPLING_H
 
// Local Includes
#include "libmesh/ghosting_functor.h"
 
#include "libmesh/fe_map.h"
#include "libmesh/quadrature.h"
 
// C++ Includes
#include <memory>
 
namespace libMesh
{
 
// Forward declarations
class PeriodicBoundaries;
 
 
class OverlapCoupling : public GhostingFunctor
{
public:
 
  OverlapCoupling();
 
  OverlapCoupling(const OverlapCoupling & other);
 
  virtual std::unique_ptr<GhostingFunctor> clone () const override
  { return std::make_unique<OverlapCoupling>(*this); }
 
  // Change coupling matrix after construction
  void set_dof_coupling(const CouplingMatrix * dof_coupling)
  { _dof_coupling = dof_coupling; }
 
  // Change quadrature rule after construction.  This function takes
  // ownership of the rule object and uses it for elements of the
  // appropriate dimension.
  void set_quadrature_rule(std::unique_ptr<QBase> new_q_rule);
 
  virtual void mesh_reinit () override;
 
  virtual void redistribute () override
  { this->mesh_reinit(); }
 
  virtual void delete_remote_elements() override
  { this->mesh_reinit(); }
 
  virtual void operator() (const MeshBase::const_element_iterator & range_begin,
                           const MeshBase::const_element_iterator & range_end,
                           processor_id_type p,
                           map_type & coupled_elements) override;
 
private:
 
  const CouplingMatrix * _dof_coupling;
 
  // Quadrature rules for different element dimensions
  std::array<std::unique_ptr<QBase>, 3> _q_rules;
 
  // FE Map from quadrature space to physical space
  FEMap _fe_map;
};
 
} // namespace libMesh
 
#endif // LIBMESH_OVERLAP_COUPLING_H