\( \newcommand{\E}{\mathrm{E}} \) \( \newcommand{\A}{\mathrm{A}} \) \( \newcommand{\R}{\mathrm{R}} \) \( \newcommand{\N}{\mathrm{N}} \) \( \newcommand{\Q}{\mathrm{Q}} \) \( \newcommand{\Z}{\mathrm{Z}} \) \( \def\ccSum #1#2#3{ \sum_{#1}^{#2}{#3} } \def\ccProd #1#2#3{ \sum_{#1}^{#2}{#3} }\)
CGAL 4.10.2 - 3D Skin Surface Meshing
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Skin_surface_3/union_of_balls_subdiv.cpp
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Union_of_balls_3.h>
#include <CGAL/Polyhedron_3.h>
#include <CGAL/mesh_union_of_balls_3.h>
#include <CGAL/subdivide_union_of_balls_mesh_3.h>
#include <list>
#include "skin_surface_writer.h"
typedef CGAL::Union_of_balls_3<Traits> Union_of_balls_3;
typedef Union_of_balls_3::Weighted_point Weighted_point;
typedef Weighted_point::Point Bare_point;
int main() {
std::list<Weighted_point> l;
l.push_front(Weighted_point(Bare_point( 1,-1,-1), 1.25));
l.push_front(Weighted_point(Bare_point( 1, 1, 1), 1.25));
l.push_front(Weighted_point(Bare_point(-1, 1,-1), 1.25));
l.push_front(Weighted_point(Bare_point(-1,-1, 1), 1.25));
Polyhedron p;
Union_of_balls_3 union_of_balls(l.begin(), l.end(), Traits(), true);
CGAL::mesh_union_of_balls_3(union_of_balls, p);
CGAL::subdivide_union_of_balls_mesh_3(union_of_balls, p);
std::ofstream out("output.off");
out << p;
return 0;
}