mesh_triangle_interface.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_MESH_TRIANGLE_INTERFACE_H
#define LIBMESH_MESH_TRIANGLE_INTERFACE_H
 
 
#include "libmesh/libmesh_config.h"
 
#ifdef LIBMESH_HAVE_TRIANGLE
 
// Local Includes
#include "libmesh/libmesh.h"
#include "libmesh/mesh_serializer.h"
 
#ifdef LIBMESH_FORWARD_DECLARE_ENUMS
namespace libMesh
{
enum ElemType : int;
}
#else
#include "libmesh/enum_elem_type.h"
#endif
 
// C++ includes
#include <cstddef>
#include <vector>
 
namespace libMesh
{
 
// Forward Declarations
class UnstructuredMesh;
 
class TriangleInterface
{
public:
  explicit
  TriangleInterface(UnstructuredMesh & mesh);
 
  ~TriangleInterface() {}
 
  enum TriangulationType
    {
      GENERATE_CONVEX_HULL = 0,
 
      PSLG = 1,
 
      INVALID_TRIANGULATION_TYPE
    };
 
  class Hole;
  class PolygonHole;
  class ArbitraryHole;
 
  class Region;
 
  void triangulate();
 
  ElemType & elem_type() {return _elem_type;}
 
  Real & desired_area() {return _desired_area;}
 
  Real & minimum_angle() {return _minimum_angle;}
 
  std::string & extra_flags() {return _extra_flags;}
 
  TriangulationType & triangulation_type() {return _triangulation_type;}
 
  bool & insert_extra_points() {return _insert_extra_points;}
 
  bool & smooth_after_generating() {return _smooth_after_generating;}
 
  bool & quiet() {return _quiet;}
 
  void attach_hole_list(const std::vector<Hole*> * holes) {_holes = holes;}
 
  std::vector<std::pair<unsigned int, unsigned int>> segments;
 
  void attach_boundary_marker(const std::vector<int> * markers) { _markers = markers; }
 
  void attach_region_list(const std::vector<Region*> * regions) { _regions = regions; }
 
private:
  UnstructuredMesh & _mesh;
 
  const std::vector<Hole*> * _holes;
 
  const std::vector<int> * _markers;
 
  const std::vector<Region*> * _regions;
 
  ElemType _elem_type;
 
  Real _desired_area;
 
  Real _minimum_angle;
 
  std::string _extra_flags;
 
  TriangulationType _triangulation_type;
 
  bool _insert_extra_points;
 
  bool _smooth_after_generating;
 
  bool _quiet;
 
  MeshSerializer _serializer;
};
 
} // namespace libMesh
 
 
 
#endif // LIBMESH_HAVE_TRIANGLE
 
#endif // ifndef LIBMESH_MESH_TRIANGLE_INTERFACE_H