CGAL users discussion list

[Vincent Mora <>]

Patch works, thanks.

On 11/12/2014 08:24, Sebastien Loriot (GeometryFactory) wrote:
> On 12/08/2014 10:12 AM, Vincent Mora wrote:
> > Hi all,
> Hi Vincent,
>
> > I need to use intersection( Triangle_3, Triangle_3 ) and union of
> > polygons from
> > Boolean_set_operations_2.h in the same piece of code.
> >
> > Unfortunatelty this does not seem possible (see error below).
> >
> > Is it expected ?
>
> Could you try the following patch?
>
> --- a/include/CGAL/Boolean_set_operations_2.h
> +++ b/include/CGAL/Boolean_set_operations_2.h
> @@ -32,6 +32,8 @@
>  #include <CGAL/Gps_traits_2.h>
>  #include <CGAL/iterator.h>
>  #include <CGAL/Boolean_set_operations_2/Bso_internal_functions.h>
> +#include <CGAL/is_iterator.h>
> +#include <boost/utility/enable_if.hpp>
>
>  namespace CGAL {
>
> @@ -902,7 +904,10 @@ inline OutputIterator intersection (InputIterator 
> begin, InputIterator end,
>
>  template <typename InputIterator, typename OutputIterator>
>  inline OutputIterator intersection (InputIterator begin, 
> InputIterator end,
> -                                    OutputIterator oi, unsigned int k=5)
> +                                    OutputIterator oi, unsigned int k=5,
> +                                    typename boost::enable_if<
> +                                      typename 
> CGAL::is_iterator<InputIterator>
> +                                    >::type* =0)
>  {
>    typename map_iterator_to_traits<InputIterator>::Traits          tr;
>    return intersection(begin, end, oi, tr, k);
>
> Thanks,
>
> Sebastien.
>
> > Thanks,
> >
> > V.
> >
> >
> >
> >
> > /usr/local/include/CGAL/Triangle_3_Triangle_3_intersection.h:62:64:
> > error: call of overloaded
> > ‘intersection(CGAL::CartesianKernelFunctors::Construct_line_3<CGAL::Simple_cartesian<CGAL::Interval_nt<false> 
> >
> >  > >::Line_3,
> > CGAL::CartesianKernelFunctors::Construct_line_3<CGAL::Simple_cartesian<CGAL::Interval_nt<false> 
> >
> >  > >::Line_3, const CGAL::Simple_cartesian<CGAL::Interval_nt<false> >&)’
> > is ambiguous
> >         Object obj= intersection(Line_3(p,q),Line_3(*prev,curr),k);
> > ^
> > /usr/local/include/CGAL/Triangle_3_Triangle_3_intersection.h:62:64:
> > note: candidates are:
> > In file included from /usr/local/include/CGAL/intersection_3_1.h:427:0,
> >                   from /usr/local/include/CGAL/intersection_3.h:29,
> >                   from
> > /usr/local/include/CGAL/Kernel/function_objects.h:34,
> >                   from
> > /usr/local/include/CGAL/Cartesian/function_objects.h:28,
> >                   from
> > /usr/local/include/CGAL/Cartesian/Cartesian_base.h:68,
> >                   from /usr/local/include/CGAL/Simple_cartesian.h:28,
> >                   from
> > /usr/local/include/CGAL/Exact_predicates_exact_constructions_kernel.h:28, 
> >
> >                   from 
> > /home/vmo/SFCGAL/build/include/SFCGAL/Kernel.h:24,
> >                   from 
> > /home/vmo/SFCGAL/build/include/SFCGAL/numeric.h:29,
> >                   from
> > /home/vmo/SFCGAL/build/include/SFCGAL/Coordinate.h:31,
> >                   from /home/vmo/SFCGAL/build/include/SFCGAL/Point.h:24,
> >                   from
> > /home/vmo/SFCGAL/build/include/SFCGAL/LineString.h:31,
> >                   from 
> > /home/vmo/SFCGAL/build/include/SFCGAL/Polygon.h:32,
> >                   from
> > /home/vmo/SFCGAL/build/include/SFCGAL/algorithm/differencePrimitives.h:3, 
> >
> >                   from /home/vmo/SFCGAL/src/algorithm/union.cpp:21:
> > /usr/local/include/CGAL/Intersections_3/intersection_3_1_impl.h:200:1:
> > note: CGAL::Object CGAL::internal::intersection(const typename
> > K::Line_3&, const typename K::Line_3&, const K&) [with K =
> > CGAL::Simple_cartesian<CGAL::Interval_nt<false> >; typename K::Line_3 =
> > CGAL::Line_3<CGAL::Simple_cartesian<CGAL::Interval_nt<false> > >]
> >   intersection(const typename K::Line_3 &l1,
> >   ^
> > In file included from
> > /home/vmo/SFCGAL/build/include/SFCGAL/algorithm/differencePrimitives.h:7:0, 
> >
> >                   from /home/vmo/SFCGAL/src/algorithm/union.cpp:21:
> > /usr/local/include/CGAL/Boolean_set_operations_2.h:904:23: note:
> > OutputIterator CGAL::intersection(InputIterator, InputIterator,
> > OutputIterator, unsigned int) [with InputIterator =
> > CGAL::Line_3<CGAL::Simple_cartesian<CGAL::Interval_nt<false> > >;
> > OutputIterator = CGAL::Simple_cartesian<CGAL::Interval_nt<false> >]
> >   inline OutputIterator intersection (InputIterator begin, InputIterator
> > end,
> >                         ^