CGAL 4.7 - Geometric Object Generators: CGAL::Random_points_in_square_2< Point_2, Creator > Class Template Reference

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CGAL 4.7 - Geometric Object Generators

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CGAL::Random_points_in_square_2< Point_2, Creator > Class Template Reference

`#include <CGAL/point_generators_2.h>`

## Definition

The class `Random_points_in_square_2` is an input iterator creating points uniformly distributed in a half-open square.

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_triangle_2<Point_2, Creator>`
  `CGAL::Random_points_in_disc_2<Point_2, Creator>`
  `CGAL::Random_points_on_segment_2<Point_2, Creator>`
  `CGAL::Random_points_on_square_2<Point_2, Creator>`
  `CGAL::Random_points_in_cube_3<Point_3, Creator>`
  `std::random_shuffle`

Examples:
  Generator/random_convex_set.cpp, Generator/random_polygon.cpp, and Generator/random_polygon2.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_in_square_2 (double a, Random &rnd=default_random)
| Creates an input iterator `g` generating points of type `Point_2` uniformly distributed in the half-open square with side length \( 2 a\), centered at the origin, i.e. \( \forall p = *g: -a \le p.x() < a\) and \( -a \le p.y() < a\). More...

## Constructor & Destructor Documentation

template<typename Point_2 , typename Creator >

CGAL::Random_points_in_square_2< Point_2, Creator >::Random_points_in_square_2 | ( | double | a,
|  | Random & | rnd = `default_random`
| ) |  |

Creates an input iterator `g` generating points of type `Point_2` uniformly distributed in the half-open square with side length \( 2 a\), centered at the origin, i.e. \( \forall p = *g: -a \le p.x() < a\) and \( -a \le p.y() < a\).

Two random numbers are needed from `rnd` for each point.