unstructured_mesh.h

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// The libMesh Finite Element Library.
// Copyright (C) 2002-2019 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_UNSTRUCTURED_MESH_H
#define LIBMESH_UNSTRUCTURED_MESH_H
 
// Local Includes
#include "libmesh/mesh_base.h"
 
// C++ Includes
#include <cstddef>
 
namespace libMesh
{
 
class UnstructuredMesh : public MeshBase
{
public:
 
  explicit
  UnstructuredMesh (const Parallel::Communicator & comm_in,
                    unsigned char dim=1);
 
  UnstructuredMesh(const UnstructuredMesh &) = default;
 
  UnstructuredMesh(UnstructuredMesh &&) = default;
 
  UnstructuredMesh & operator= (const UnstructuredMesh &) = delete;
  UnstructuredMesh & operator= (UnstructuredMesh &&) = delete;
 
  virtual ~UnstructuredMesh();
 
  virtual void read (const std::string & name,
                     void * mesh_data=nullptr,
                     bool skip_renumber_nodes_and_elements=false,
                     bool skip_find_neighbors=false) override;
  virtual void write (const std::string & name) override;
 
  void write (const std::string & name,
              const std::vector<Number> & values,
              const std::vector<std::string> & variable_names);
 
  virtual void all_first_order () override;
 
  virtual void all_second_order (const bool full_ordered=true) override;
 
  void create_pid_mesh (UnstructuredMesh & pid_mesh,
                        const processor_id_type pid) const;
 
  void create_submesh (UnstructuredMesh & new_mesh,
                       const const_element_iterator & it,
                       const const_element_iterator & it_end) const;
 
 
  virtual void copy_nodes_and_elements (const UnstructuredMesh & other_mesh,
                                        const bool skip_find_neighbors = false,
                                        dof_id_type element_id_offset = 0,
                                        dof_id_type node_id_offset = 0,
                                        unique_id_type unique_id_offset = 0);
 
 
  virtual void find_neighbors (const bool reset_remote_elements = false,
                               const bool reset_current_list    = true) override;
 
#ifdef LIBMESH_ENABLE_AMR
 
  virtual bool contract () override;
#endif // #ifdef LIBMESH_ENABLE_AMR
 
};
 
 
} // namespace libMesh
 
#endif // LIBMESH_UNSTRUCTURED_MESH_H