The class Triangulation_euclidean_traits_2<K> can be used to instantiate the geometric traits class of basic and Delaunay triangulations. The templated parameter K has to be instantiated by a model of the Kernel concept. The class Triangulation_euclidean_traits_2<K> uses types and predicates defined K.
#include <CGAL/Triangulation_euclidean_traits_2.h>
TriangulationTraits_2
DelaunayTriangulationTraits_2