CGAL users discussion list

[Martin Baeker <>]

Dear Sebastien,

that seems to be excatly what I needed. Thanks a lot,

Martin.

> Martin Baeker wrote:
> > Dear all,
> > 
> > in my last question I asked about Nef_polyhedra. by now I found out
> > that my problem was due to having an extended kernel.
> > 
> > So here is the next (hopefully more simple) question: Can I convert
> > geometric quantities in an easy way between different kernels?
> > 
> > I have:
> > 
> > typedef CGAL::Homogeneous<CGAL::Gmpz>  Kernel;
> > typedef CGAL::Extended_homogeneous<CGAL::Gmpz>  EKernel;
> > typedef Kernel::Plane_3  Plane_3;
> > typedef Kernel::Point_3    Point;
> > typedef Kernel::Vector_3  Vector_3;
> > typedef EKernel::Plane_3  EPlane_3;
> > typedef EKernel::Point_3    EPoint;
> > typedef EKernel::Vector_3  EVector_3;
> > 
> > Is there a simple way to convert a Plane_3 into a EPlane_3 (and the
> > same with vectors and points) and vice versa? 
> Hello,
> 
> You should have look at Homogeneous_converter described here:
> 
> http://www.cgal.org/Manual/last/doc_html/cgal_manual/Kernel_23_ref/Class_Homogeneous_converter.html#Index_anchor_295
> 
> Then depending on what is your "extended kernel", you may need to copy extra
> information by hand.
> 
> S.
> 
> > Thanks for any help,
> > 
> > Martin.
> > 
> > 
> >                    Priv.-Doz. Dr. Martin Bäker
> >                    Institut für Werkstoffe
> >                    Technische Universität Braunschweig
> >                    Langer Kamp 8
> >                    38106 Braunschweig
> >                    Germany
> >                    Tel.: 00-49-531-391-3073
> >                    Fax   00-49-531-391-3058
> >                    e-mail 
> > <>
> 
> 
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                   Priv.-Doz. Dr. Martin Bäker
                   Institut für Werkstoffe
                   Technische Universität Braunschweig
                   Langer Kamp 8
                   38106 Braunschweig
                   Germany
                   Tel.: 00-49-531-391-3073
                   Fax   00-49-531-391-3058
                   e-mail 
<>