CGAL 5.3 - 2D and 3D Linear Geometry Kernel
Kernel::ConstructVertex_2 Concept Reference

## Definition

Refines:
AdaptableFunctor (with two arguments)
See also
CGAL::Iso_rectangle_2<Kernel>
CGAL::Segment_2<Kernel>
CGAL::Triangle_2<Kernel>

## Operations

A model of this concept must provide:

Kernel::Point_2 operator() (const Kernel::Segment_2 &s, int i)
returns source or target of s: fo(s,0) returns the source of s, fo(s,1) returns the target of s. More...

Kernel::Point_2 operator() (const Kernel::Iso_rectangle_2 &r, int i)
returns the i'th vertex of r in counterclockwise order, starting with the lower left vertex. More...

Kernel::Point_2 operator() (const Kernel::Triangle_2 &t, int i)
returns the i'th vertex of t. More...

## ◆ operator()() [1/3]

 Kernel::Point_2 Kernel::ConstructVertex_2::operator() ( const Kernel::Segment_2 & s, int i )

returns source or target of s: fo(s,0) returns the source of s, fo(s,1) returns the target of s.

The parameter i is taken modulo 2.

## ◆ operator()() [2/3]

 Kernel::Point_2 Kernel::ConstructVertex_2::operator() ( const Kernel::Iso_rectangle_2 & r, int i )

returns the i'th vertex of r in counterclockwise order, starting with the lower left vertex.

The parameter i is taken modulo 4.

## ◆ operator()() [3/3]

 Kernel::Point_2 Kernel::ConstructVertex_2::operator() ( const Kernel::Triangle_2 & t, int i )

returns the i'th vertex of t.

The parameter i is taken modulo 3.