mesh_triangle_interface.h

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// The libMesh Finite Element Library.
// Copyright (C) 2002-2014 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/enum_elem_type.h"
#include "libmesh/libmesh.h"
#include "libmesh/mesh_serializer.h"

// 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;

  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;}

  void attach_hole_list(const std::vector<Hole*>* holes) {_holes = holes;}

  std::vector<std::pair<unsigned int, unsigned int> > segments;

private:
  UnstructuredMesh& _mesh;

  const std::vector<Hole*>* _holes;

  ElemType _elem_type;

  Real _desired_area;

  Real _minimum_angle;

  std::string _extra_flags;

  TriangulationType _triangulation_type;

  bool _insert_extra_points;

  bool _smooth_after_generating;

  MeshSerializer _serializer;
};

} // namespace libMesh



#endif // LIBMESH_HAVE_TRIANGLE

#endif // ifndef LIBMESH_MESH_TRIANGLE_INTERFACE_H