\( \newcommand{\E}{\mathrm{E}} \) \( \newcommand{\A}{\mathrm{A}} \) \( \newcommand{\R}{\mathrm{R}} \) \( \newcommand{\N}{\mathrm{N}} \) \( \newcommand{\Q}{\mathrm{Q}} \) \( \newcommand{\Z}{\mathrm{Z}} \) \( \def\ccSum #1#2#3{ \sum_{#1}^{#2}{#3} } \def\ccProd #1#2#3{ \sum_{#1}^{#2}{#3} }\)
CGAL 4.12 - 2D Arrangements
CGAL::Arr_face_overlay_traits< Arr_A, Arr_B, Arr_R, OvlFaceData > Class Template Reference
2D Arrangement Reference » Traits Classes2D Arrangement Reference » | Overlay

#include <CGAL/Arr_default_overlay_traits.h>

Definition

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 traits-class 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 traits-class 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.

Is Model Of:
OverlayTraits
See also
overlay
CGAL::Arr_face_extended_dcel<Traits,FData,V,H,F>
Examples:
Arrangement_on_surface_2/face_extension_overlay.cpp, and Arrangement_on_surface_2/overlay_unbounded.cpp.