mirror of https://github.com/CGAL/cgal
43 lines
1.5 KiB
C++
43 lines
1.5 KiB
C++
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
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#include <CGAL/Regular_triangulation_2.h>
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#include <CGAL/Regular_triangulation_euclidean_traits_2.h>
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#include <CGAL/regular_neighbor_coordinates_2.h>
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typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
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typedef CGAL::Regular_triangulation_euclidean_traits_2<K> Gt;
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typedef CGAL::Regular_triangulation_2<Gt> Regular_triangulation;
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typedef Regular_triangulation::Weighted_point Weighted_point;
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typedef std::vector< std::pair< Weighted_point, K::FT > >
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Point_coordinate_vector;
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int main()
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{
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Regular_triangulation rt;
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for (int y=0 ; y<3 ; y++)
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for (int x=0 ; x<3 ; x++)
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rt.insert(Weighted_point(K::Point_2(x,y), 0));
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//coordinate computation
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Weighted_point wp(K::Point_2(1.2, 0.7),2);
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Point_coordinate_vector coords;
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CGAL::Triple<
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std::back_insert_iterator<Point_coordinate_vector>,
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K::FT, bool> result =
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CGAL::regular_neighbor_coordinates_2(rt, wp,
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std::back_inserter(coords));
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if(!result.third){
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std::cout << "The coordinate computation was not successful."
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<< std::endl;
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std::cout << "The point (" <<wp.point() << ") lies outside the convex hull."
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<< std::endl;
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}
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K::FT norm = result.second;
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std::cout << "Coordinate computation successful." << std::endl;
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std::cout << "Normalization factor: " <<norm << std::endl;
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std::cout << "done" << std::endl;
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return 0;
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}
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