CGAL 6.2 - 2D and 3D Linear Geometry Kernel

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Triangulation_2/triangulation_projection_traits.cpp
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Constrained_Delaunay_triangulation_2.h>
#include <CGAL/Projection_traits_3.h>
#include <iostream>
#include <vector>
typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
typedef CGAL::Projection_traits_3<K> GT;
typedef CGAL::Exact_predicates_tag Itag;
typedef CGAL::Constrained_Delaunay_triangulation_2<GT, CGAL::Default, Itag> CDT;
typedef CDT::Point Point;
typedef CDT::Edge Edge;
int main()
{
//4 points on the diagonal plane of a cube
std::vector<Point> ps(4);
ps[0] = Point(0,0,0);
ps[1] = Point(3,1,-1);
ps[2] = Point(-1, 3, -3);
ps[3] = Point(1,0.5,-0.5);
GT gt{ { 0, 1, 1} };
CDT cdt(gt);
for(int i = 0; i< 4; ++i)
cdt.insert(ps[i]);
for(int i = 1; i < 3; ++i)
cdt.insert_constraint(ps[i], ps[i+1]);
for(CDT::Face_handle f : cdt.all_face_handles())
{
for(int i=0; i<3; ++i)
std::cout << f->vertex(i)->point() << " ";
std::cout << std::endl;
}
}
CGAL::Constrained_Delaunay_triangulation_2
CGAL::Exact_predicates_inexact_constructions_kernel
A typedef to a kernel that has the following properties:
Definition: Exact_predicates_inexact_constructions_kernel.h:223
CGAL::Projection_traits_3
The class Projection_traits_3 works similarly to the Projection_traits_xy_3, Projection_traits_xz_3,...
Definition: Projection_traits_3.h:26
CGAL::Exact_predicates_tag