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#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/boost/graph/graph_traits_Linear_cell_complex_for_combinatorial_map.h>
#include <CGAL/Linear_cell_complex_constructors.h>
#include <CGAL/Polygon_mesh_processing/triangulate_hole.h>
#include <CGAL/Polygon_mesh_processing/IO/polygon_mesh_io.h>
#include <fstream>
#include <iostream>
#include <iterator>
#include <string>
#include <vector>
typedef CGAL::Exact_predicates_inexact_constructions_kernel Kernel;
typedef Kernel::Point_3 Point;
typedef CGAL::Linear_cell_complex_traits<3, Kernel> MyTraits;
typedef CGAL::Linear_cell_complex_for_bgl_combinatorial_map_helper<2, 3, MyTraits>::type Mesh;
typedef boost::graph_traits<Mesh>::vertex_descriptor vertex_descriptor;
typedef boost::graph_traits<Mesh>::halfedge_descriptor halfedge_descriptor;
typedef boost::graph_traits<Mesh>::face_descriptor face_descriptor;
namespace PMP = CGAL::Polygon_mesh_processing;
int main(int argc, char* argv[])
{
const std::string filename = (argc > 1) ? argv[1] : CGAL::data_file_path("meshes/mech-holes-shark.off");
Mesh mesh;
if(!PMP::IO::read_polygon_mesh(filename, mesh))
{
std::cerr << "Invalid input." << std::endl;
return 1;
}
// Incrementally fill the holes
unsigned int nb_holes = 0;
for ( halfedge_descriptor h : halfedges(mesh))
{
if(is_border(h,mesh))
{
std::vector<face_descriptor> patch_facets;
std::vector<vertex_descriptor> patch_vertices;
bool success = std::get<0>(PMP::triangulate_refine_and_fair_hole(mesh,
h,
CGAL::parameters::face_output_iterator(std::back_inserter(patch_facets))
.vertex_output_iterator(std::back_inserter(patch_vertices))
.vertex_point_map(get(CGAL::vertex_point, mesh))
.geom_traits(Kernel())));
std::cout << "* Number of facets in constructed patch: " << patch_facets.size() << std::endl;
std::cout << " Number of vertices in constructed patch: " << patch_vertices.size() << std::endl;
std::cout << " Is fairing successful: " << success << std::endl;
++nb_holes;
}
}
std::cout << std::endl;
std::cout << nb_holes << " holes have been filled" << std::endl;
std::ofstream out("filled_LCC.off");
out.precision(17);
CGAL::IO::write_OFF(out, mesh);
return 0;
}
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