cgal/Packages/Planar_map/examples/Topological_map/example2.C

59 lines
1.5 KiB
C

// examples/Topological_map/example2.C
// -----------------------------------
#include <CGAL/basic.h>
#include <iostream>
#include <CGAL/Topological_map_bases.h>
#include <CGAL/Pm_default_dcel.h>
#include <CGAL/Topological_map.h>
class Face_with_info : public CGAL::Tpm_face_base {
int inf;
public:
Face_with_info() : CGAL::Tpm_face_base(), inf(0) {}
int info() {return inf;}
void set_info(int i) {inf=i;}
};
typedef CGAL::Pm_dcel<CGAL::Tpm_vertex_base,
CGAL::Tpm_halfedge_base,
Face_with_info > Dcel;
typedef CGAL::Topological_map<Dcel> Tpm;
typedef Tpm::Halfedge_handle Halfedge_handle;
typedef Tpm::Vertex_handle Vertex_handle;
typedef Tpm::Face_handle Face_handle;
int main() {
Tpm t;
Face_handle uf=t.unbounded_face();
std::cout << "inserting e1 in face interior..." << std::endl;
Halfedge_handle e1 = t.insert_in_face_interior(uf);
CGAL_assertion(t.is_valid());
std::cout << "inserting e2 from vertex..." << std::endl;
Halfedge_handle e2=t.insert_from_vertex(e1);
CGAL_assertion(t.is_valid());
std::cout << "inserting e3 between vertices of e2 and e1->twin()..." << std::endl;
Halfedge_handle e3=t.insert_at_vertices(e2,e1->twin());
CGAL_assertion(t.is_valid());
std::cout << "\nsetting info of the new face to 10..." << std::endl;
Face_handle nf=e3->face() ;
nf->set_info(10);
std::cout << "\nunbounded face info = " << uf->info() << std::endl;
std::cout << "new face info = " << nf->info() << std::endl;
return 0;
}