calculate_vertices_one_ring_geometric_laplacian.hpp

Go to the documentation of this file.

// Copyright (c) 2012-2019 University of Lyon and CNRS (France).
// All rights reserved.
//
// This file is part of MEPP2; 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 3 of
// the License, or (at your option) any later version.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
#pragma once
 
#include <boost/graph/graph_traits.hpp>
#include <boost/graph/properties.hpp>
 
#include "FEVV/Wrappings/Geometry_traits.h"
#include "FEVV/Operators/Generic/Manifold/vertex_one_ring_geometric_laplacian.hpp"
 
namespace FEVV {
namespace Filters {
 
template< typename FaceGraph,
          typename PointMap,
          typename CentroidMap,
          typename GeometryTraits = FEVV::Geometry_traits< FaceGraph > >
void
calculate_vertices_one_ring_geometric_laplacian(
    const FaceGraph &g,
    const PointMap &pm,         // const map (follows CGAL usage)
    CentroidMap geom_laplacians_pm, // modifiable map (follows CGAL usage)
    const typename GeometryTraits::Scalar smoothing_factor,
    const GeometryTraits &gt)
{
  typedef boost::graph_traits< FaceGraph > GraphTraits;
 
  typedef typename GraphTraits::vertex_iterator vertex_iterator;
  //typedef typename GraphTraits::vertex_descriptor vertex_descriptor;
  //typedef typename boost::property_traits< PointMap >::value_type Point;
  //typedef typename boost::property_traits< PointMap >::reference Reference;
 
  // this code works only for Polyhedron_3, Surface Mesh, OpenMesh and AIF
  auto iterator_pair = vertices(g); // vertices() returns a vertex_iterator pair
 
  vertex_iterator vi = iterator_pair.first;
  vertex_iterator vi_end = iterator_pair.second;
  for(; vi != vi_end; ++vi)
  {
    geom_laplacians_pm[*vi] =
        Operators::vertex_one_ring_geometric_laplacian< FaceGraph,
                                                        PointMap,
                                                        GeometryTraits >(
            *vi, g, pm, smoothing_factor, gt);
  }
}
 
template< typename FaceGraph,
          typename PointMap,
          typename CentroidMap,
          typename GeometryTraits = FEVV::Geometry_traits< FaceGraph > >
void
calculate_vertices_one_ring_geometric_laplacian(
    const FaceGraph &g,
    const PointMap &pm,         // const map (follows CGAL usage)
    CentroidMap geom_laplacians_pm, // modifiable map (follows CGAL usage)
    const typename GeometryTraits::Scalar smoothing_factor = 0.1)
 
{
  GeometryTraits gt(g);
  return calculate_vertices_one_ring_geometric_laplacian< FaceGraph,
                                                          PointMap,
                                                          CentroidMap,
                                                          GeometryTraits >(
      g, pm, geom_laplacians_pm, smoothing_factor, gt);
}
 
} // namespace Filters
} // namespace FEVV