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synced 2026-08-29 08:13:14 +00:00
Switched back to Polyhedron_3 for shapes. Should be checked.
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@@ -23,7 +23,7 @@ void IfcGeom::CgalKernel::remove_duplicate_points_from_loop(cgal_wire_t& polygon
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}
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}
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CGAL::Nef_polyhedron_3<Kernel> IfcGeom::CgalKernel::create_nef_polyhedron(std::list<cgal_face_t> &face_list) {
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CGAL::Polyhedron_3<Kernel> IfcGeom::CgalKernel::create_polyhedron(std::list<cgal_face_t> &face_list) {
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// Naive creation
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CGAL::Polyhedron_3<Kernel> polyhedron = CGAL::Polyhedron_3<Kernel>();
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@@ -34,35 +34,25 @@ CGAL::Nef_polyhedron_3<Kernel> IfcGeom::CgalKernel::create_nef_polyhedron(std::l
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// std::cout << "Before: " << polyhedron.size_of_vertices() << " vertices and " << polyhedron.size_of_facets() << " facets" << std::endl;
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CGAL::Polygon_mesh_processing::stitch_borders(polyhedron);
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if (!polyhedron.is_valid()) {
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std::cout << "create_nef_polyhedron: Polyhedron not valid!" << std::endl;
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// std::ofstream fresult;
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// fresult.open("/Users/ken/Desktop/invalid.off");
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// fresult << polyhedron << std::endl;
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// fresult.close();
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return CGAL::Nef_polyhedron_3<Kernel>();
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} if (!polyhedron.is_closed()) {
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// std::ofstream fresult;
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// fresult.open("/Users/ken/Desktop/open.off");
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// fresult << polyhedron << std::endl;
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// fresult.close();
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CGAL::Nef_polyhedron_3<Kernel> mesh;
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unsigned int current_face = 0;
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for (auto &face: faces(polyhedron)) {
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++current_face;
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// if (current_face%10 == 0) std::cout << current_face << "/" << polyhedron.size_of_facets() << std::endl;
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std::list<Kernel::Point_3> points_in_face;
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CGAL::Polyhedron_3<Kernel>::Halfedge_around_facet_const_circulator current_halfedge = face->facet_begin();
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do {
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points_in_face.push_back(current_halfedge->vertex()->point());
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++current_halfedge;
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} while (current_halfedge != face->facet_begin());
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mesh += CGAL::Nef_polyhedron_3<Kernel>(points_in_face.begin(), points_in_face.end());
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} return mesh;
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}
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if (!CGAL::Polygon_mesh_processing::is_outward_oriented(polyhedron)) {
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CGAL::Polygon_mesh_processing::reverse_face_orientations(polyhedron);
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std::cout << "create_polyhedron: Polyhedron not valid!" << std::endl;
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// std::ofstream fresult;
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// fresult.open("/Users/ken/Desktop/invalid.off");
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// fresult << polyhedron << std::endl;
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// fresult.close();
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return CGAL::Polyhedron_3<Kernel>();
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} if (polyhedron.is_closed()) {
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if (!CGAL::Polygon_mesh_processing::is_outward_oriented(polyhedron)) {
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CGAL::Polygon_mesh_processing::reverse_face_orientations(polyhedron);
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}
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}
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// std::cout << "After: " << polyhedron.size_of_vertices() << " vertices and " << polyhedron.size_of_facets() << " facets" << std::endl;
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return polyhedron;
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}
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CGAL::Nef_polyhedron_3<Kernel> IfcGeom::CgalKernel::create_nef_polyhedron(std::list<cgal_face_t> &face_list) {
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CGAL::Polyhedron_3<Kernel> polyhedron = create_polyhedron(face_list);
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return CGAL::Nef_polyhedron_3<Kernel>(polyhedron);
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}
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