CGAL::Random_points_on_segment_2< Point_2, Creator > Class Template Reference

#include <CGAL/point_generators_2.h>

Definition

The class Random_points_on_segment_2 is an input iterator creating points uniformly distributed on a segment.

The default Creator is Creator_uniform_2<Kernel_traits<Point_2>Kernel::RT,Point_2>.

Is Model Of:

InputIterator

PointGenerator

See also

CGAL::cpp11::copy_n()

CGAL::Counting_iterator

CGAL::Points_on_segment_2<Point_2>

CGAL::Random_points_in_disc_2<Point_2, Creator>

CGAL::Random_points_in_square_2<Point_2, Creator>

CGAL::Random_points_in_triangle_2<Point_2, Creator>

CGAL::Random_points_on_circle_2<Point_2, Creator>

CGAL::Random_points_on_square_2<Point_2, Creator>

std::random_shuffle

Examples:

Generator/random_segments1.cpp.

Types
typedef std::input_iterator_tag	iterator_category
typedef Point_2	value_type
typedef std::ptrdiff_t	difference_type
typedef const Point_2 *	pointer
typedef const Point_2 &	reference
	Random_points_on_segment_2 (const Point_2 &p, const Point_2 &q, Random &rnd=default_random)
	creates an input iterator g generating points of type Point_2 uniformly distributed on the segment from \( p\) to \( q\) (excluding \( q\)), i.e. \( *g == (1-\lambda)\, p + \lambda q\) where \( 0 \le\lambda< 1\). More...

Member Typedef Documentation

template<typename Point_2, typename Creator>

typedef std::ptrdiff_t CGAL::Random_points_on_segment_2< Point_2, Creator >::difference_type

template<typename Point_2, typename Creator>

typedef std::input_iterator_tag CGAL::Random_points_on_segment_2< Point_2, Creator >::iterator_category

template<typename Point_2, typename Creator>

typedef const Point_2* CGAL::Random_points_on_segment_2< Point_2, Creator >::pointer

template<typename Point_2, typename Creator>

typedef const Point_2& CGAL::Random_points_on_segment_2< Point_2, Creator >::reference

template<typename Point_2, typename Creator>

typedef Point_2 CGAL::Random_points_on_segment_2< Point_2, Creator >::value_type

Constructor & Destructor Documentation

template<typename Point_2, typename Creator>

CGAL::Random_points_on_segment_2< Point_2, Creator >::Random_points_on_segment_2	(	const Point_2 &	p,
		const Point_2 &	q,
		Random &	rnd = default_random
	)

creates an input iterator g generating points of type Point_2 uniformly distributed on the segment from \( p\) to \( q\) (excluding \( q\)), i.e. \( *g == (1-\lambda)\, p + \lambda q\) where \( 0 \le\lambda< 1\).

A single random number is needed from rnd for each point.

Requires:

The expressions to_double(p.x()) and to_double(p.y()) must result in the respective double representation of the coordinates of \( p\), and similarly for \( q\).