1 #include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
2 #include <CGAL/boost/graph/graph_traits_Linear_cell_complex_for_combinatorial_map.h>
3 #include <CGAL/Linear_cell_complex_constructors.h>
4
5 #include <CGAL/Polygon_mesh_processing/triangulate_hole.h>
6 #include <CGAL/Polygon_mesh_processing/IO/polygon_mesh_io.h>
7
8 #include <iostream>
9 #include <fstream>
10 #include <vector>
11
12 typedef CGAL::Exact_predicates_inexact_constructions_kernel Kernel;
13 typedef Kernel::Point_3 Point;
14 typedef CGAL::Linear_cell_complex_traits<3, Kernel> MyTraits;
15 typedef CGAL::Linear_cell_complex_for_bgl_combinatorial_map_helper<2, 3, MyTraits>::type LCC;
16
17 typedef boost::graph_traits<LCC>::vertex_descriptor vertex_descriptor;
18 typedef boost::graph_traits<LCC>::halfedge_descriptor halfedge_descriptor;
19 typedef boost::graph_traits<LCC>::face_descriptor face_descriptor;
20
21 namespace PMP = CGAL::Polygon_mesh_processing;
22
main(int argc,char * argv[])23 int main(int argc, char* argv[])
24 {
25 const char* filename = (argc > 1) ? argv[1] : "data/mech-holes-shark.off";
26
27 LCC mesh;
28 if(!PMP::IO::read_polygon_mesh(filename, mesh))
29 {
30 std::cerr << "Invalid input." << std::endl;
31 return 1;
32 }
33
34 // Incrementally fill the holes
35 unsigned int nb_holes = 0;
36 for ( halfedge_descriptor h : halfedges(mesh))
37 {
38 if(is_border(h,mesh))
39 {
40 std::vector<face_descriptor> patch_facets;
41 std::vector<vertex_descriptor> patch_vertices;
42 bool success = std::get<0>(PMP::triangulate_refine_and_fair_hole(mesh,
43 h,
44 std::back_inserter(patch_facets),
45 std::back_inserter(patch_vertices),
46 PMP::parameters::vertex_point_map(get(CGAL::vertex_point, mesh))
47 .geom_traits(Kernel())));
48
49 std::cout << "* Number of facets in constructed patch: " << patch_facets.size() << std::endl;
50 std::cout << " Number of vertices in constructed patch: " << patch_vertices.size() << std::endl;
51 std::cout << " Is fairing successful: " << success << std::endl;
52 ++nb_holes;
53 }
54 }
55
56 std::cout << std::endl;
57 std::cout << nb_holes << " holes have been filled" << std::endl;
58
59 std::ofstream out("filled_LCC.off");
60 out.precision(17);
61 CGAL::IO::write_OFF(out, mesh);
62
63 return 0;
64 }
65