CGAL users discussion list

[horstmann <>]

Hi everyone,

I'm almost new to CGAL and I have a Dealunay 3 Triangulation as in the
example: "39.5.5   Fast Point Location for Delaunay Triangulations" in the
following link:

http://www.cgal.org/Manual/latest/doc_html/cgal_manual/Triangulation_3/Chapter_main.html
CGAL Triangulation_3 Documentation .

    typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
    typedef CGAL::Delaunay_triangulation_3<K, CGAL::Fast_location> Delaunay;
    typedef Delaunay::Point Point;

    std::vector<Point> P;
    // Insert some points.....

    Delaunay dt(P.begin(), P.end());

Then, I perform its convex_hull:

    // define polyhedron to hold convex hull
    CGAL::Polyhedron_3<K> poly;

    // Get only the surface
    convex_hull_3_to_polyhedron_3(dt,poly);


Once I have the triangulation and its conex_hull performed in dt and poly, I
need to get the following info:

- number of tetrahedron in the triangulation. (Is that just the number of
cells?¿)

- for each tetrahedron, the position of its four vertices (in ascending
order).

- for each tetrahedron on the convex hull, the index (local index, i.e. in
1-4) of the vertex NOT on the convex hull

Could anyone lend me a hand with that?¿?
Thank you so much in advance!!



--
View this message in context: 
http://cgal-discuss.949826.n4.nabble.com/How-to-get-some-info-from-a-Delaunay-Triangulation-tp4617393.html
Sent from the cgal-discuss mailing list archive at Nabble.com.