CGAL users discussion list

["Laurent Rineau (GeometryFactory)" <>]

On vendredi 07 octobre 2011 03:31:14 Kai WANG wrote:
> Hi Sebastien,
> The reason is illustrated in another post:
> 
> http://cgal-discuss.949826.n4.nabble.com/Issue-on-CGAL-Polygon-2-Intersecti
> on-td3877407.html
> 
> Since I find my program crash when calculating the 2D polygon intersection
> with CGAL::Cartesian<double> as the kernel number type, especially when
> there are more digits after the decimal point.

CGAL::Exact_predicates_inexact_constructions_kernel is a synonym of 
  CGAL::Filtered_kernel< Simple_cartesian<double> > 

That kernel, whose FT is also "double", is very different from 
CGAL::Cartesian<double> or CGAL::Simple_cartesian<double>, because it ensures 
that predicates will be evaluated exactly (using filtering technics to avoid 
extra cost).

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