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[Mikhail Matrosov <>]

Ok, thanks.

-----
Best regards, Mikhail Matrosov

2012/3/2 Sebastien Loriot (GeometryFactory) <>

On 03/02/2012 09:06 AM, Mikhail Matrosov wrote:

Thank you! And what if I want to consider iso_rectangle as thin, have
starting point of ray inside it and want to find intersection as a point
in this case (see picture)? Should I just take target() of segment found
as an intersection?

Quickly looked at the code and I would say yes.

Sebastien.

-----
Best regards, Mikhail Matrosov


2012/3/2 Sebastien Loriot (GeometryFactory) <

<mailto:>>

   The iso_rectangle is considered as full so that what you call
   the two point case is the segment one.

   #include <CGAL/Exact_predicates_exact___constructions_kernel.h>

   int main(){

     typedef CGAL::Exact_predicates_exact___constructions_kernel Kernel;

     typedef Kernel::Point_2 Point_2;
     typedef Kernel::Ray_2 Ray_2;
     typedef Kernel::Iso_rectangle_2 Iso_rectangle_2;


     Ray_2 r(Point_2(0,0),Point_2(1,1));

     Iso_rectangle_2 rect(Point_2(0,0),Point_2(1,1)__);

     CGAL::Object obj=CGAL::intersection(r,rect)__;
     const Kernel::Segment_2* s=CGAL::object_cast<Kernel::__Segment_2>

   (&obj);

     CGAL_assertion(s!=NULL);

     std::cout << *s << std::endl;

   }



   On 03/02/2012 08:55 AM, Mikhail Matrosov wrote:

       There is a function Object intersection(Type1<Kernel> obj1,
       Type2<Kernel> obj2) in CGAL which will return an object,
       representing
       intersection of two given objects of different possible types. It is
       said, that intersection of Iso_rectangle_2 and Ray_2 is either
       Point_2
       or Segment_2.

       And what about the case when ray intersects rectangle in two
       points (see
       attached picture)? Cannot see anything about it in the manual.

       -----
       Best regards, Mikhail Matrosov



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