CGAL::Points_on_segment_2< Point_2 > Class Template Reference

#include <CGAL/point_generators_2.h>

Definition

The class Points_on_segment_2 is a generator for points on a segment whose endpoints are specified upon construction.

The points are equally spaced.

Is Model Of:

PointGenerator

See also

CGAL::points_on_segment<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_segment_2<Point_2, Creator>

CGAL::Random_points_on_square_2<Point_2, Creator>

CGAL::random_selection()

Examples:

Generator/random_segments2.cpp.

Types
typedef std::input_iterator_tag	iterator_category
typedef Point_2	value_type
typedef std::ptrdiff_t	difference_type
const typedef Point_2 *	pointer
const typedef Point_2 &	reference
	Points_on_segment_2 (const Point_2 &p, const Point_2 &q, std::size_t n, std::size_t i=0)
	creates an input iterator g generating points of type P equally spaced on the segment from \( p\) to \( q\). More...

Operations
double	range ()
	returns the range in which the point coordinates lie, i.e. \( \forall x: |x| \leq\) range() and \( \forall y: |y| \leq\)range()
const Point_2 &	source ()
	returns the source point of the segment.
const Point_2 &	target ()
	returns the target point of the segment.

Constructor & Destructor Documentation

Points_on_segment_2()

template<typename Point_2 >

CGAL::Points_on_segment_2< Point_2 >::Points_on_segment_2	(	const Point_2 &	p,
		const Point_2 &	q,
		std::size_t	n,
		std::size_t	i = 0
	)

creates an input iterator g generating points of type P equally spaced on the segment from \( p\) to \( q\).

\( n-i\) points are placed on the segment defined by \( p\) and \( q\). Values of the index parameter \( i\) larger than 0 indicate starting points for the sequence further from \( p\). Point \( p\) has index value 0 and \( q\) has index value \( n-1\).

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 \( q\).