CGAL::Is_convex_2< Traits > Class Template Reference

#include <CGAL/polygon_function_objects.h>

Definition

template<typename Traits>
class CGAL::Is_convex_2< Traits >

Function object class for testing if a sequence of points represents a convex polygon or not.

Is model of

PolygonIsValid

See also

CGAL::convex_partition_is_valid_2()

CGAL::Partition_is_valid_traits_2<Traits, PolygonIsValid>

Implementation

This test requires \(O(n)\) time for a polygon with \( n\) vertices.

Creation
	Is_convex_2 (const Traits &t)
	Traits satisfies the requirements of the function is_convex_2()

Operations
template<class InputIterator >
bool	operator() (InputIterator first, InputIterator beyond)
	returns true iff the points of type Traits::Point_2 in the range [first,beyond) define a convex polygon.

Constructor & Destructor Documentation

Is_convex_2()

template<typename Traits >

CGAL::Is_convex_2< Traits >::Is_convex_2

(

const Traits &

t

)

Traits satisfies the requirements of the function is_convex_2()

Member Function Documentation

operator()()

template<typename Traits >

template<class InputIterator >

bool CGAL::Is_convex_2< Traits >::operator()	(	InputIterator	first,
		InputIterator	beyond
	)

returns true iff the points of type Traits::Point_2 in the range [first,beyond) define a convex polygon.