CGAL users discussion list

[Andreas Fabri <>]

Hello,

You can use
http://doc.cgal.org/4.8/BGL/group__PkgBGLIterators.html#ga7746cb7b28520877375dfff6ec7bd32c

as follows:

typedef boost::graph_traits<Polyhedron>::vertex_descriptor
  vertex_descriptor;
typedef boost::graph_traits<Polyhedron>::face_descriptor
  face_descriptor;

Polyhedron P;

BOOST_FOREACH(face_descriptor fd, faces(P)){
  BOOST_FOREACH(vertex_descriptor vd,
                CGAL::vertices_around_face(halfedge(fd,P),P)){
    std::cout << vd->point() << std::endl;
  }
}

andreas

On 05/04/2016 11:22, Merlin Etzold wrote:
> Dear All,
>
> I have 3D Polyhedra which I want to represent as Polyhedron_3 which
> shall represent growing shapes. To simulate the growth process I want to
> shift individual facets along their normal direction. My strategy to do
> this is to access the vertices belong to the facets and apply a
> translation them towards the desired direction.
>
> However, as an inexperienced CGAL user I struggle a bit finding the best
> strategy to access the vertices belonging to the neighbouring facets. Is
> there an easy way to get an iterator for the vertices belonging to a facet?
>
> Thank you and best wishes,
> Merlin

--
Andreas Fabri, PhD
Chief Officer, GeometryFactory
Editor, The CGAL Project

phone: +33.492.954.912    skype: andreas.fabri