 CGAL 5.6 - Geometric Object Generators
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
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_2pointer

const typedef Point_2reference

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_2source ()
returns the source point of the segment.

const Point_2target ()
returns the target point of the segment.

## ◆ 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 $$q$$.