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

CGAL 4.8 - Combinatorial Maps

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Combinatorial_map/map_4_simple_example.cpp
#include <CGAL/Combinatorial_map.h>
#include <CGAL/Combinatorial_map_constructors.h>
#include <iostream>
#include <cstdlib>
typedef CGAL::Combinatorial_map<4> CMap_4;
typedef CMap_4::Dart_handle Dart_handle;
Dart_handle make_triangle(CMap_4& amap)
{
Dart_handle d1 = amap.create_dart();
Dart_handle d2 = amap.create_dart();
Dart_handle d3 = amap.create_dart();
amap.link_beta<1>(d1,d2);
amap.link_beta<1>(d2,d3);
amap.link_beta<1>(d3,d1);
return d1;
}
Dart_handle make_tetrahedral(CMap_4& amap)
{
Dart_handle d1 = make_triangle(amap);
Dart_handle d2 = make_triangle(amap);
Dart_handle d3 = make_triangle(amap);
Dart_handle d4 = make_triangle(amap);
amap.link_beta<2>(d1, d2);
amap.link_beta<2>(d3, amap.beta(d2,0));
amap.link_beta<2>(amap.beta(d1,1), amap.beta(d3,0));
amap.link_beta<2>(d4, amap.beta(d2,1));
amap.link_beta<2>(amap.beta(d4,0), amap.beta(d3,1));
amap.link_beta<2>(amap.beta(d4,1), amap.beta(d1,0));
return d1;
}
int main()
{
CMap_4 cm;
Dart_handle d1 = make_tetrahedral(cm);
Dart_handle d2 = make_tetrahedral(cm);
cm.sew<4>(d1,d2);
cm.display_characteristics(std::cout);
std::cout<<", valid="<<cm.is_valid()<<std::endl;
return EXIT_SUCCESS;
}