يمكنك إرفاق أي معلومات على القمم في التثليث. على سبيل المثال لإضافة مؤشرات (unsigned int
) يمكنك القيام بما يلي:
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Delaunay_triangulation_2.h>
#include <CGAL/Triangulation_vertex_base_with_info_2.h>
#include <vector>
typedef CGAL::Exact_predicates_inexact_constructions_kernel Kernel;
typedef CGAL::Triangulation_vertex_base_with_info_2<unsigned int, Kernel> Vb;
typedef CGAL::Triangulation_data_structure_2<Vb> Tds;
typedef CGAL::Delaunay_triangulation_2<Kernel, Tds> Delaunay;
typedef Kernel::Point_2 Point;
int main() {
std::vector< std::pair<Point,unsigned> > points;
points.push_back( std::make_pair( Point(1,1), 0 ) );
points.push_back( std::make_pair( Point(1,2), 1 ) );
points.push_back( std::make_pair( Point(1,3), 2 ) );
points.push_back( std::make_pair( Point(2,1), 3 ) );
points.push_back( std::make_pair( Point(2,2), 4 ) );
points.push_back( std::make_pair( Point(2,3), 5 ) );
Delaunay triangulation;
triangulation.insert(points.begin(),points.end());
for(Delaunay::Finite_faces_iterator fit = triangulation.finite_faces_begin();
fit != triangulation.finite_faces_end(); ++fit) {
Delaunay::Face_handle face = fit;
std::cout << "Triangle:\t" << triangulation.triangle(face) << std::endl;
std::cout << "Vertex 0:\t" << triangulation.triangle(face)[0] << std::endl;
std::cout << "Vertex 0:\t" << face->vertex(0)->info() << std::endl;
}
}