\( \newcommand{\E}{\mathrm{E}} \) \( \newcommand{\A}{\mathrm{A}} \) \( \newcommand{\R}{\mathrm{R}} \) \( \newcommand{\N}{\mathrm{N}} \) \( \newcommand{\Q}{\mathrm{Q}} \) \( \newcommand{\Z}{\mathrm{Z}} \) \( \def\ccSum #1#2#3{ \sum_{#1}^{#2}{#3} } \def\ccProd #1#2#3{ \sum_{#1}^{#2}{#3} }\)
CGAL 4.7 - 2D Conforming Triangulations and Meshes
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DelaunayMeshFaceBase_2 Concept Reference
Concepts

Definition

The concept DelaunayMeshFaceBase_2 refines the concept TriangulationFaceBase_2. It adds two functions giving access to a Boolean marker, that indicates if the face is in the meshing domain or not.

Refines:
ConstrainedTriangulationFaceBase_2
Has Models:
CGAL::Delaunay_mesh_face_base_2<Traits, Fb>

Typedef

typedef std::pair
< DelaunayMeshFaceBase_2, int > 		Edge
 A typedef to describe an edge.
 

Functions

bool is_in_domain () const
 returns true if this face is in the domain to be refined.
 
void set_in_domain (const bool b)
 sets if this face is in the domain.
 
bool is_blind () const
 return true if this face has its circumcenter hidden by a constrained edge. More...
 
void set_blind (const bool b)
 sets if this face is blind or not.
 
Edge blinding_constraint () const
 If this face is blind, this function returns the first constrained edge that prevents it from "seeing" its circumcenter. More...
 
void set_blinding_constraint (const Egde &e)
 sets the edge that makes this face blind. More...
 

Member Function Documentation

Edge DelaunayMeshFaceBase_2::blinding_constraint ( ) const

If this face is blind, this function returns the first constrained edge that prevents it from "seeing" its circumcenter.

Precondition
is_blind() returns true
bool DelaunayMeshFaceBase_2::is_blind ( ) const

return true if this face has its circumcenter hidden by a constrained edge.

It does not "see" it, following the Constrained Delaunay triangulation visibility criterion.

void DelaunayMeshFaceBase_2::set_blinding_constraint ( const Egde &  e)

sets the edge that makes this face blind.

Precondition
is_blind() returns true
e is a constrained edge