#define PHI 1.6180339887498948482
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Surface_mesh.h>
#include <CGAL/Polygon_mesh_processing/triangulate_faces.h>
#include <CGAL/Barycentric_coordinates_3/Discrete_harmonic_coordinates_3.h>
using Surface_mesh = CGAL::Surface_mesh<Point_3>;
namespace PMP = CGAL::Polygon_mesh_processing;
int main(){
Surface_mesh icosahedron;
PMP::triangulate_faces(faces(icosahedron), icosahedron);
std::vector<FT> coords;
std::vector<Point_3> queries{
Point_3(-1, 1 + PHI, PHI), Point_3(0.5, (1+3*PHI)/2, PHI/2), Point_3(1, 1+PHI, -PHI),
Point_3(-1, 1, 1), Point_3(0, 0, 1), Point_3(0, 2, 1),
Point_3(0, 2*PHI, 4), Point_3(0, 3, 2*PHI), Point_3(4, 0, 0)};
std::cout << std::endl << "Discrete harmonic coordinates : " << std::endl << std::endl;
for (const auto& query : queries){
coords.clear();
icosahedron, query, std::back_inserter(coords), CP3::FAST_WITH_EDGE_CASES);
for (std::size_t i = 0; i < coords.size() -1; ++i) {
std::cout << coords[i] << ", ";
}
std::cout << coords[coords.size() -1] << std::endl;
}
std::cout << std::endl;
return EXIT_SUCCESS;
}