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#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Surface_mesh.h>
#include <CGAL/boost/graph/graph_traits_Surface_mesh.h>
#include <CGAL/Polygon_mesh_processing/triangulate_hole.h>
#include <iostream>
#include <fstream>
#include <vector>
#include <boost/foreach.hpp>
typedef CGAL::Exact_predicates_inexact_constructions_kernel Kernel;
typedef Kernel::Point_3 Point;
typedef CGAL::Surface_mesh<Point> Mesh;
typedef boost::graph_traits<Mesh>::halfedge_descriptor halfedge_descriptor;
typedef boost::graph_traits<Mesh>::face_descriptor face_descriptor;
typedef boost::graph_traits<Mesh>::vertex_descriptor vertex_descriptor;
int main(int argc, char* argv[])
{
const char* filename = (argc > 1) ? argv[1] : "data/mech-holes-shark.off";
std::ifstream input(filename);
Mesh mesh;
if ( !input || !(input >> mesh) ) {
std::cerr << "Not a valid off file." << std::endl;
return 1;
}
// Incrementally fill the holes
unsigned int nb_holes = 0;
BOOST_FOREACH(halfedge_descriptor h, halfedges(mesh))
{
if(is_border(h,mesh))
{
std::vector<face_descriptor> patch_facets;
std::vector<vertex_descriptor> patch_vertices;
bool success = CGAL::cpp11::get<0>(
CGAL::Polygon_mesh_processing::triangulate_refine_and_fair_hole(
mesh,
h,
std::back_inserter(patch_facets),
std::back_inserter(patch_vertices),
CGAL::Polygon_mesh_processing::parameters::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_SM.off");
out.precision(17);
out << mesh << std::endl;
return 0;
}
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