CGAL users discussion list

[Efi Fogel <>]

Paul Neugebauer wrote:
> Thank you for the reply,
> I tried this:
>
> Traits_2::Curve_2      Curve_2;
>
> ...
> insert_curve(arr,  Curve_2(*eit));
> ...
>
> but still get an error. So what exactly do you mean with "extract".
By extract I mean that the information for constructing the curve or 
even the curve itself is available in the record pointed by (*eit), and 
should be obtained from there. Please consult the documentation.
> Thank you,
> Paul
>
>
>
>  schrieb:
> > Quoting 
> > :
> >
> > > Hi List,
> > > I'm new to CGAL and I'd like to do the following:
> > >
> > > Insert the voronoi edges into an arrangement. Like this:
> > >
> > >
> > > typedef CGAL::Voronoi_diagram_2<SDG2,SDG2_AT2,SDG2_AP2>   VD;
> > > typedef CGAL::Arr_conic_traits_2<Rat_kernel,
> > >                                  Alg_kernel,
> > >                                  Nt_traits>             Traits_2;
> > > typedef CGAL::Arrangement_2<Traits_2>                   Arrangement_2;
> > >
> > > VD vd;
> > > Arrangement_2 arr;
> > >
> > > Edge_iterator eit = vd.edges_begin();
> > > for ( ; eit != vd.edges_end(); ++eit) {
> > >       insert_curve(arr,  *eit);
> > > }
> > >
> > > *eit is no curve, so I get an error, but how can I do it otherwise ?
> >
> > You got it. You have to insert the curve. Extract the curve from the 
> > Voronoi edge iterator, and insert it.
> > > Can someone help me?
> > >
> > > Thank you very much in advance,
> > > Paul
> > > --
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