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Export non-simple Nef too

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This commit is contained in:
Ken Arroyo Ohori
2017-03-20 20:57:17 -06:00
parent 71d7bbd6ba
commit 4061f93560
2 changed files with 44 additions and 6 deletions
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src/ifcgeom/kernels/cgal/CgalConversionResult.cpp
+31 -3
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@@ -4,11 +4,39 @@
void IfcGeom::CgalShape::Triangulate(const IfcGeom::IteratorSettings & settings, const IfcGeom::ConversionResultPlacement * place, IfcGeom::Representation::Triangulation<double>* t, int surface_style_id) const {
cgal_shape_t s = shape_;
const cgal_placement_t& trsf = dynamic_cast<const CgalPlacement*>(place)->trsf();
// std::cout << "Model: " << s.size_of_facets() << " facets and " << s.size_of_vertices() << " vertices" << std::endl;
// std::cout << "Valid: " << s.is_valid() << std::endl;
std::cout << "Nef Model: " << s.number_of_facets() << " facets and " << s.number_of_vertices() << " vertices" << std::endl;
std::cout << "Simple: " << s.is_simple() << std::endl;
CGAL::Polyhedron_3<Kernel> polyhedron;
s.convert_to_polyhedron(polyhedron);
if (s.is_simple()) s.convert_to_polyhedron(polyhedron);
else {
std::list<cgal_face_t> face_list;
face_list.push_back(cgal_face_t());
std::set<CGAL::Nef_polyhedron_3<Kernel>::Halffacet_const_handle> visited_halffacets;
for (CGAL::Nef_polyhedron_3<Kernel>::Halffacet_const_iterator current_halffacet = s.halffacets_begin();
current_halffacet != s.halffacets_end();
++current_halffacet) {
if (visited_halffacets.count(current_halffacet->twin())) continue;
for (CGAL::Nef_polyhedron_3<Kernel>::Halffacet_cycle_const_iterator current_halffacet_cycle = current_halffacet->facet_cycles_begin();
current_halffacet_cycle != current_halffacet->facet_cycles_end();
++current_halffacet_cycle) {
if (current_halffacet_cycle.is_shalfloop()) continue;
CGAL::Nef_polyhedron_3<Kernel>::SHalfedge_const_handle first_shalfedge = current_halffacet_cycle;
CGAL::Nef_polyhedron_3<Kernel>::SHalfedge_const_handle current_shalfedge = first_shalfedge;
if (!face_list.back().outer.empty()) face_list.push_back(cgal_face_t());
do {
face_list.back().outer.push_back(current_shalfedge->source()->center_vertex()->point());
current_shalfedge = current_shalfedge->next();
} while (current_shalfedge != first_shalfedge);
}
} if (face_list.back().outer.empty()) face_list.pop_back();
PolyhedronBuilder builder(&face_list);
polyhedron.delegate(builder);
}
std::cout << "Polyhedron Model: " << polyhedron.size_of_facets() << " facets and " << polyhedron.size_of_vertices() << " vertices" << std::endl;
std::cout << "Valid: " << polyhedron.is_valid() << std::endl;
// Apply transformation
if (place != NULL) for (auto &vertex: vertices(polyhedron)) {