mirror of https://github.com/CGAL/cgal
90 lines
2.3 KiB
C++
90 lines
2.3 KiB
C++
#include <fstream>
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#include <CGAL/Hyperbolic_random_points_in_disc_2.h>
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// CGAL headers
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#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
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#include <CGAL/Delaunay_triangulation_2.h>
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#include <CGAL/Timer.h>
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// to compare with hyperbolic traits
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// #include <CGAL/Hyperbolic_triangulation_traits_2.h>
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typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
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typedef K::Point_2 Point_2;
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typedef K::FT FT;
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typedef CGAL::Delaunay_triangulation_2<K> Dt;
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//typedef CGAL::Hyperbolic_triangulation_traits_2<K> Gt;
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//typedef CGAL::Delaunay_triangulation_2<Gt> Dt2;
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int main(int argc, char *argv[])
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{
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FT r = 1;
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FT eps = 0;
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for(int k = 0; k < 2; k++) {
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if(k == 0) {
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eps = 1e-3;
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}
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if(k == 1) {
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eps = 1e-7;
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}
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int trials_nb = 10;
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int start_nb = 10000;
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std::cout << std::endl << eps << std::endl << std::endl;
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for(int nb = start_nb, k = 0; k < 4; nb = nb*10, k++) {
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std::vector< std::vector<Point_2> > pts(trials_nb);
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for(int i = 0; i < trials_nb; i++) {
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if(argc > 1 && argv[1][0] == 'e') {
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Random_points_in_disc_2<K>(pts[i], nb, i, eps);
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} else {
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Hyperbolic_random_points_in_disc_2<K>(pts[i], nb, i, eps);
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}
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}
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double average_time = 0;
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double average_nb = 0;
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for(int trials = 0; trials < trials_nb; trials++) {
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Dt dt = Dt();
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//Dt2 dt = Dt2();
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CGAL::Timer timer;
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timer.start();
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spatial_sort (pts[trials].begin(), pts[trials].end(), K());
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Dt::Face_handle f;
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//Dt2::Face_handle f;
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for(int i = 0; i < nb; i++) {
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f = dt.insert(pts[trials][i], f)->face();
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}
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timer.stop();
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average_time += timer.time();
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timer.reset();
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average_nb += dt.number_of_vertices();
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}
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average_time = average_time/trials_nb;
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average_nb = average_nb/trials_nb;
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std::cout << "R^2" << std::endl;
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std::cout << "Radius: " << r << std::endl;
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std::cout << "Eps: " << eps << std::endl;
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std::cout << "Number of points: " << average_nb << std::endl;
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std::cout << "Time: " << average_time << std::endl;
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std::cout << std::endl;
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}
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}
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return 0;
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}
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