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Dear all,

I use CGAL::Arr_conic_traits_2<..> with CORE traits: 
CGAL::CORE_algebraic_number_traits, is it possible do it with leda? I've got 
Leda 5.1.1 geometry module, I use :

typedef CGAL::CORE_algebraic_number_traits      Nt_traits;
typedef leda_rational                           Rational;
typedef leda_real                               Algebraic;
typedef CGAL::Cartesian<Rational>               Kernel_Rat; 
typedef CGAL::Cartesian<Algebraic>              Kernel_Alg;     
typedef CGAL::Arr_conic_traits_2<Kernel_Rat,                                  
                          Kernel_Alg,                                         
                    Nt_traits>      Conic_traits_2;


I don't know how to replace the core number traits "Nt_traits" for the LEDA 
one. Have you got any IDEA?

Is really more effective compute conic arrangements with LEDA than do it with 
CORE?


thanks in advance,

Marcel janer.