File: random_points_triangle_2.cpp

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#include <iostream>
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/point_generators_2.h>
#include <CGAL/Random.h>

typedef CGAL::Exact_predicates_inexact_constructions_kernel 		K;
typedef K::Point_2 													Point_2;
typedef K::Triangle_2 												Triangle_2;
typedef std::vector<Point_2>										Container;
typedef CGAL::Random_points_in_triangle_2<Point_2> 					Point_generator;

int main() {
	std::cout << "Creating 100 random points in a triangle in 2D." << std::endl;
	
	// The input triangle is as follows
	Triangle_2 tri(Point_2(0,0),Point_2(1,0),Point_2(0,1));
	
	// generated points are in that container
	Container points;
	
	// creating the generator, input is the Triangle_2 tri
	Point_generator g(tri);
	
	// get 100 random points in tri
	CGAL::cpp11::copy_n(g, 100, std::back_inserter(points));
	
	// Check that we have really created 100 points.
	assert( points.size() == 100);
	
	// print the first point that was generated
	std::cout << points[0] << std::endl;
	
	return 0;
}