surface_mesh.h

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// ------------------------------------------------------------------------
//
// SPDX-License-Identifier: LGPL-2.1-or-later
// Copyright (C) 2022 - 2025 by the deal.II authors
//
// This file is part of the deal.II library.
//
// Part of the source code is dual licensed under Apache-2.0 WITH
// LLVM-exception OR LGPL-2.1-or-later. Detailed license information
// governing the source code and code contributions can be found in
// LICENSE.md and CONTRIBUTING.md at the top level directory of deal.II.
//
// ------------------------------------------------------------------------
 
#ifndef dealii_cgal_surface_mesh_h
#define dealii_cgal_surface_mesh_h
 
#include <deal.II/base/config.h>
 
#include <deal.II/fe/mapping.h>
 
#include <deal.II/grid/tria.h>
 
 
#ifdef DEAL_II_WITH_CGAL
#  include <deal.II/cgal/point_conversion.h>
 
#  include <CGAL/version.h>
#  if CGAL_VERSION_MAJOR >= 6
#    include <CGAL/Installation/internal/disable_deprecation_warnings_and_errors.h>
#  endif
#  include <CGAL/Polygon_mesh_processing/stitch_borders.h>
#  include <CGAL/Surface_mesh.h>
 
 
DEAL_II_NAMESPACE_OPEN
 
namespace CGALWrappers
{
  template <typename CGALPointType, int dim, int spacedim>
  void
  dealii_cell_to_cgal_surface_mesh(
    const typename ::Triangulation<dim, spacedim>::cell_iterator &cell,
    const ::Mapping<dim, spacedim>                               &mapping,
    CGAL::Surface_mesh<CGALPointType>                                  &mesh);

  template <typename CGALPointType, int dim, int spacedim>
  void
  dealii_tria_to_cgal_surface_mesh(
    const ::Triangulation<dim, spacedim> &triangulation,
    CGAL::Surface_mesh<CGALPointType>          &mesh);
} // namespace CGALWrappers
 
 
 
DEAL_II_NAMESPACE_CLOSE
 
#else
 
// Make sure the scripts that create the C++20 module input files have
// something to latch on if the preprocessor #ifdef above would
// otherwise lead to an empty content of the file.
DEAL_II_NAMESPACE_OPEN
DEAL_II_NAMESPACE_CLOSE
 
#endif
#endif