Line data    Source code

       1             : // The libMesh Finite Element Library.
       2             : // Copyright (C) 2002-2025 Benjamin S. Kirk, John W. Peterson, Roy H. Stogner
       3             : 
       4             : // This library is free software; you can redistribute it and/or
       5             : // modify it under the terms of the GNU Lesser General Public
       6             : // License as published by the Free Software Foundation; either
       7             : // version 2.1 of the License, or (at your option) any later version.
       8             : 
       9             : // This library is distributed in the hope that it will be useful,
      10             : // but WITHOUT ANY WARRANTY; without even the implied warranty of
      11             : // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12             : // Lesser General Public License for more details.
      13             : 
      14             : // You should have received a copy of the GNU Lesser General Public
      15             : // License along with this library; if not, write to the Free Software
      16             : // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
      17             : 
      18             : 
      19             : #ifndef LIBMESH_MESH_TRIANGLE_INTERFACE_H
      20             : #define LIBMESH_MESH_TRIANGLE_INTERFACE_H
      21             : 
      22             : 
      23             : #include "libmesh/libmesh_config.h"
      24             : 
      25             : #ifdef LIBMESH_HAVE_TRIANGLE
      26             : 
      27             : // Local Includes
      28             : #include "libmesh/mesh_serializer.h"
      29             : #include "libmesh/triangulator_interface.h"
      30             : 
      31             : namespace libMesh
      32             : {
      33             : 
      34             : /**
      35             :  * A C++ interface between LibMesh and the Triangle library written by
      36             :  * J.R. Shewchuk.
      37             :  *
      38             :  * \author John W. Peterson
      39             :  * \date 2011
      40             :  */
      41             : class TriangleInterface : public TriangulatorInterface
      42             : {
      43             : public:
      44             :   /**
      45             :    * The constructor.  A reference to the mesh containing the points
      46             :    * which are to be triangulated must be provided.  Unless otherwise
      47             :    * specified, a convex hull will be computed for the set of input points
      48             :    * and the convex hull will be meshed.
      49             :    */
      50             :   explicit
      51             :   TriangleInterface(UnstructuredMesh & mesh);
      52             : 
      53             :   /**
      54             :    * Empty destructor.
      55             :    */
      56          40 :   virtual ~TriangleInterface() = default;
      57             : 
      58             :   /**
      59             :    * Internally, this calls Triangle's triangulate routine.
      60             :    */
      61             :   virtual void triangulate() override;
      62             : 
      63             :   /**
      64             :    * Sets and/or gets additional flags to be passed to triangle
      65             :    */
      66             :   std::string & extra_flags() {return _extra_flags;}
      67             : 
      68             : private:
      69             :   /**
      70             :    * Additional flags to be passed to triangle
      71             :    */
      72             :   std::string _extra_flags;
      73             : 
      74             :   /**
      75             :    * Triangle only operates on serial meshes.
      76             :    */
      77             :   MeshSerializer _serializer;
      78             : };
      79             : 
      80             : } // namespace libMesh
      81             : 
      82             : #endif // LIBMESH_HAVE_TRIANGLE
      83             : 
      84             : #endif // ifndef LIBMESH_MESH_TRIANGLE_INTERFACE_H