DelaunayMeshFaceBase_2 Concept Reference

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
	returns true if this face has its circumcenter hidden by a constrained edge.
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.
void	set_blinding_constraint (const Edge &e)
	sets the edge that makes this face blind.

Member Function Documentation

blinding_constraint()

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

is_blind()

bool DelaunayMeshFaceBase_2::is_blind

(

)

const

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

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

set_blinding_constraint()

void DelaunayMeshFaceBase_2::set_blinding_constraint

(

const Edge &

e

)

sets the edge that makes this face blind.

Precondition

is_blind() returns true

e is a constrained edge