void test_HalfedgeDS_default() { // Simple instantiation of the default halfedge data structure. typedef CGAL_HALFEDGEDS_DEFAULT<Dummy_traits_2> HDS; typedef CGAL::HalfedgeDS_decorator<HDS> Decorator; HDS hds; Decorator D(hds); D.create_loop(); assert( hds.size_of_vertices() == 1); assert( hds.size_of_halfedges() == 2); assert( hds.size_of_faces() == 2); assert( D.is_valid( false, 3)); D.make_hole( hds.halfedges_begin()->opposite()); hds.normalize_border(); assert( hds.size_of_border_halfedges() == 1); assert( hds.size_of_border_edges() == 1); assert( D.is_valid( false, 4)); D.fill_hole( hds.halfedges_begin()->opposite()); hds.normalize_border(); assert( hds.size_of_border_halfedges() == 0); assert( hds.size_of_border_edges() == 0); assert( D.is_valid( false, 4)); HDS hds2(hds); // copy constructor. Decorator D2(hds2); assert( D2.is_valid( false, 4)); hds = hds2; // assignment. assert( D.is_valid( false, 4)); typedef HDS::Halfedge_iterator Halfedge_iterator; Halfedge_iterator i = hds.halfedges_begin(); assert(!(i == hds.halfedges_end())); }
void test_HalfedgeDS_decorator3() { // Simple instantiation of the default halfedge data structure. typedef CGAL::HalfedgeDS_default<Dummy_traits_2> HDS; typedef CGAL::HalfedgeDS_decorator<HDS> Decorator; CGAL_USE_TYPE(HDS::Halfedge_handle); CGAL_USE_TYPE(HDS::Face_handle); HDS hds; Build_triangle<HDS> modifier(0,0); modifier(hds); modifier.x_=33; modifier.y_=33; modifier(hds); Decorator decorator(hds); decorator.keep_largest_connected_components(1); hds.normalize_border(); assert( hds.size_of_vertices() == 4); assert( hds.size_of_halfedges() == 10); assert( hds.size_of_faces() == 2); assert( decorator.is_valid( false, 4)); decorator.vertices_erase(hds.vertices_begin()); decorator.vertices_erase(hds.vertices_begin(), hds.vertices_end()); decorator.faces_erase(hds.faces_begin()); decorator.faces_erase(hds.faces_begin(), hds.faces_end()); assert( hds.size_of_vertices() == 0); assert( hds.size_of_halfedges() == 10); assert( hds.size_of_faces() == 0); }
void test_HalfedgeDS_polyhedron_default() { // Simple instantiation of the default for polyhedrons. typedef CGAL_HALFEDGEDS_DEFAULT< Dummy_traits_3, CGAL::Polyhedron_items_3> HDS; typedef HDS::Vertex Vertex; typedef HDS::Halfedge Halfedge; typedef HDS::Face Face; typedef Halfedge::Base HBase; HDS hds; hds.vertices_push_back( Vertex()); hds.edges_push_back( Halfedge(), Halfedge()); hds.faces_push_back( Face()); hds.halfedges_begin()->HBase::set_face( hds.faces_begin()); assert( hds.size_of_vertices() == 1); assert( hds.size_of_halfedges() == 2); assert( hds.size_of_faces() == 1); hds.normalize_border(); assert( hds.size_of_border_halfedges() == 1); assert( hds.size_of_border_edges() == 1); typedef HDS::Halfedge_iterator Halfedge_iterator; Halfedge_iterator i = hds.halfedges_begin(); assert(!(i == hds.halfedges_end())); }
void operator()(HDS & hds) { next_index = hds.size_of_vertices(); builder = new Builder(hds, true); }
void test_HalfedgeDS_decorator() { // Simple instantiation of the default halfedge data structure. typedef CGAL_HALFEDGEDS_DEFAULT<Dummy_traits_2> HDS; typedef CGAL::HalfedgeDS_decorator<HDS> Decorator; typedef HDS::Halfedge_handle Halfedge_handle; typedef HDS::Face_handle Face_handle; HDS hds; Decorator decorator(hds); // Check create single loop. Halfedge_handle h = decorator.create_loop(); hds.normalize_border(); assert( hds.size_of_vertices() == 1); assert( hds.size_of_halfedges() == 2); assert( hds.size_of_faces() == 2); assert( decorator.is_valid( false, 4)); // Restart with open segment. hds.clear(); hds.normalize_border(); assert( decorator.is_valid( false, 4)); h = decorator.create_segment(); assert( hds.size_of_vertices() == 2); assert( hds.size_of_halfedges() == 2); assert( hds.size_of_faces() == 1); assert( decorator.is_valid( false, 4)); // Create border edge and check normalization. decorator.set_face( h->opposite(), Face_handle()); hds.normalize_border(); assert( hds.size_of_border_halfedges() == 1); assert( hds.size_of_border_edges() == 1); assert( decorator.normalized_border_is_valid()); decorator.set_face( h->opposite(), h->face()); hds.normalize_border(); assert( hds.size_of_border_halfedges() == 0); assert( hds.size_of_border_edges() == 0); assert( decorator.is_valid( false, 4)); // Extend edge to two triangles. Halfedge_handle g = decorator.split_vertex( h, h); assert( decorator.is_valid( false, 4)); assert( h != g); assert( h->next()->next() == g); assert( h == g->next()->next()); assert( h->opposite() == g->next()); assert( g->opposite() == h->next()); Halfedge_handle g2 = decorator.split_face(h->opposite(),g->opposite()); assert( decorator.is_valid( false, 4)); assert( h->opposite()->next() == g2); assert( g2->next() == g); decorator.split_vertex( g2, g->opposite()); assert( decorator.is_valid( false, 4)); assert( g->next()->next()->next()->next() == g); Halfedge_handle g3 = decorator.split_face( g2->next()->opposite(), h); assert( decorator.is_valid( false, 4)); assert( g->next()->next()->next()->next() == g); assert( h->next()->next()->next() == h); assert( g3->next()->next()->next() == g3); assert( g3->next() == g->opposite()); assert( g3->opposite()->next() == g2->opposite()); assert( g3->opposite() == h->next()); // Edge flip within the triangle. Halfedge_handle g4 = decorator.flip_edge( g3); assert( decorator.is_valid( false, 4)); assert( g4 == g3); assert( g3->next()->next() == g2->opposite()); assert( g3->opposite()->next() == h); assert( g->next()->next()->next()->next() == g); assert( h->next()->next()->next() == h); assert( g3->next()->next()->next() == g3); // Reverse face orientation. decorator.inside_out(); assert( decorator.is_valid( false, 4)); decorator.inside_out(); assert( decorator.is_valid( false, 4)); // Check hole manipulations. decorator.make_hole(g); hds.normalize_border(); assert( hds.size_of_border_halfedges() == 4); assert( hds.size_of_border_edges() == 4); assert( decorator.is_valid( false, 4)); // Reverse face orientation, deal also with the hole.. decorator.inside_out(); assert( decorator.is_valid( false, 3)); hds.normalize_border(); assert( decorator.is_valid( false, 4)); // Check add_face_to_border. hds.clear(); h = decorator.create_loop(); decorator.make_hole( h->opposite()); hds.normalize_border(); assert( decorator.is_valid( false, 4)); decorator.add_face_to_border( h->opposite(), h->opposite()); assert( hds.size_of_halfedges() == 4); assert( hds.size_of_faces() == 2); assert( decorator.is_valid( false, 3)); }