NormalEstimator Concept Reference

Definition

The concept NormalEstimator describes a functor that extracts the normal for a surface element.

Has models

CGAL::Feature_graph::AmbrosioTortorelli_on_image::Normal_functor

CGAL::Feature_graph::Normal_estimator::Normal_estimator_on_surface

Types
typedef unspecified_type	Normal_type
	The type of the normal vector model of Kernel::Vector_3

Functor
template<typename DimensionTag , typename Index >
Normal_type	operator() (const Index &element_index) const
	returns the normal vector of the surface element described by a dimension and an index.

Member Function Documentation

operator()()

template<typename DimensionTag , typename Index >

Normal_type NormalEstimator::operator()

(

const Index &

element_index

)

const

returns the normal vector of the surface element described by a dimension and an index.

Template Parameters

DimensionTag	a tag that represent the element type. Can be CGAL::Dimension_tag<0>, CGAL::Dimension_tag<1> or CGAL::Dimension_tag<2>
Index	the type of index used to identify the element to evaluate, which can be a vertex, an edge, or a facet according to the DimesionTag.

Parameters

element_index

the index of the element to evaluate.