CGAL 5.3  2D Arrangements

#include <CGAL/Arr_default_overlay_traits.h>
An instance of Arr_face_overlay_traits
should be used for overlaying two arrangements of types Arr_A
and Arr_B
, which are instantiated using the same geometric traitsclass and with the DCEL classes Dcel_A
and Dcel_B
respectively, in order to store their overlay in an arrangement of type Arr_R
, which is instantiated using a third DCEL class Dcel_R
.
All three DCEL classes are assumed to be instantiations of the Arr_face_extended_dcel
template with types FaceData_A
, FaceData_B
and FaceData_R
, respectively.
This class gives empty implementation for all overlay traitsclass functions, except the function that computes the overlay of two faces. In this case, it uses the functor OvlFaceData
, which accepts a FaceData_A
object and a FaceData_B
object and computes a corresponding FaceData_R
object, in order to set the auxiliary data of the overlay face.
overlay
CGAL::Arr_face_extended_dcel<Traits,FData,V,H,F>