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_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_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 $q$.