CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

On 10/28/2013 10:43 AM, Sebastien Loriot (GeometryFactory) wrote:
> On 10/28/2013 10:40 AM, Laurent Rineau (CGAL/GeometryFactory) wrote:
> > Le mardi 22 octobre 2013 01:13:56 ffmm3 a écrit :
> >
> >  > If I want determine the relative position between the point(0.7,0.3)
> > and the
> >
> >  > triangle with vertices(-1,0)(1,0)(0,1) precisely, what should I do?
> >
> > You would need a kernel with an exact arithmetic, like
> > CGAL::Exact_predicates_exact_construction_kernel
> >
> > http://doc.cgal.org/latest/Kernel_23/classCGAL_1_1Exact__predicates__exact__constructions__kernel.html
>
> ... and you need to construct 0.7 as 7 / 10 and 0.3 as 3 / 10

I meant

typedef CGAL::Exact_predicates_exact_construction_kernel::FT FT;

FT(7) / FT(10) and FT(3) / FT(10)



> Sebastien.
>
> > --
> >
> > Laurent Rineau, PhD
> >
> > R&D Engineer at GeometryFactory http://www.geometryfactory.com/
> >
> > Release Manager of the CGAL Project http://www.cgal.org/