Optimal_transportation_reconstruction_2/otr2_simplest_example.cpp

// Simplest example for Optimal_transportation_reconstruction_2, with no mass
// attributes for the input points and no Wasserstein tolerance
 
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/point_generators_2.h>
#include <CGAL/Optimal_transportation_reconstruction_2.h>
 
#include <fstream>
#include <iostream>
#include <vector>
 
typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
typedef K::Point_2                                          Point;
 
typedef CGAL::Optimal_transportation_reconstruction_2<K>    Otr;
 
int main ()
{
    CGAL::get_default_random() = CGAL::Random(1671586136);
  // Generate a set of random points on the boundary of a square.
  std::vector<Point> points;
  CGAL::Random_points_on_square_2<Point> point_generator(1.);
  std::copy_n(point_generator, 100, std::back_inserter(points));
 
  Otr otr(points);
 
  if (otr.run(100)) //100 steps
    std::cerr << "All done." << std::endl;
  else
    std::cerr << "Premature ending." << std::endl;
 
  return 0;
}