CGAL 4.7 - 3D Skin Surface Meshing: Skin_surface_3/skin_surface_subdiv_with_normals.cpp

\( \newcommand{\E}{\mathrm{E}} \) \( \newcommand{\A}{\mathrm{A}} \) \( \newcommand{\R}{\mathrm{R}} \) \( \newcommand{\N}{\mathrm{N}} \) \( \newcommand{\Q}{\mathrm{Q}} \) \( \newcommand{\Z}{\mathrm{Z}} \) \( \def\ccSum #1#2#3{ \sum_{#1}^{#2}{#3} } \def\ccProd #1#2#3{ \sum_{#1}^{#2}{#3} }\)

CGAL 4.7 - 3D Skin Surface Meshing

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Skin_surface_3/skin_surface_subdiv_with_normals.cpp
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Skin_surface_3.h>
#include <CGAL/Polyhedron_3.h>
#include <CGAL/mesh_skin_surface_3.h>
#include <CGAL/subdivide_skin_surface_mesh_3.h>
#include <list>
#include <fstream>
#include "skin_surface_writer.h"
typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
typedef CGAL::Skin_surface_traits_3<K> Traits;
typedef CGAL::Skin_surface_3<Traits> Skin_surface_3;
typedef Skin_surface_3::FT FT;
typedef Skin_surface_3::Weighted_point Weighted_point;
typedef Weighted_point::Point Bare_point;
typedef CGAL::Skin_surface_polyhedral_items_3<Skin_surface_3> Polyhedral_items;
typedef CGAL::Polyhedron_3<K, Polyhedral_items> Polyhedron;
int main() {
std::list<Weighted_point> l;
FT shrinkfactor = 0.5;
l.push_front(Weighted_point(Bare_point(0,0,0), 1));
l.push_front(Weighted_point(Bare_point(0,1,0), 2));
l.push_front(Weighted_point(Bare_point(0,0,2), 1));
Skin_surface_3 skin_surface(l.begin(), l.end(), shrinkfactor);
Polyhedron p;
CGAL::mesh_skin_surface_3(skin_surface, p);
CGAL::subdivide_skin_surface_mesh_3(skin_surface, p);
std::ofstream out("mesh.off");
write_polyhedron_with_normals(skin_surface, p, out);
return 0;
}