\( \newcommand{\E}{\mathrm{E}} \) \( \newcommand{\A}{\mathrm{A}} \) \( \newcommand{\R}{\mathrm{R}} \) \( \newcommand{\N}{\mathrm{N}} \) \( \newcommand{\Q}{\mathrm{Q}} \) \( \newcommand{\Z}{\mathrm{Z}} \) \( \def\ccSum #1#2#3{ \sum_{#1}^{#2}{#3} } \def\ccProd #1#2#3{ \sum_{#1}^{#2}{#3} }\)
CGAL 4.12.2 - Planar Parameterization of Triangulated Surface Meshes
Surface_mesh_parameterization/simple_parameterization.cpp
#include <CGAL/Simple_cartesian.h>
#include <CGAL/Surface_mesh.h>
#include <CGAL/Surface_mesh_parameterization/IO/File_off.h>
#include <CGAL/Surface_mesh_parameterization/parameterize.h>
#include <CGAL/Polygon_mesh_processing/measure.h>
#include <iostream>
#include <fstream>
typedef Kernel::Point_2 Point_2;
typedef Kernel::Point_3 Point_3;
typedef boost::graph_traits<SurfaceMesh>::vertex_descriptor vertex_descriptor;
typedef boost::graph_traits<SurfaceMesh>::halfedge_descriptor halfedge_descriptor;
typedef boost::graph_traits<SurfaceMesh>::face_descriptor face_descriptor;
int main(int argc, char * argv[])
{
std::ifstream in((argc>1) ? argv[1] : "data/nefertiti.off");
if(!in) {
std::cerr << "Problem loading the input data" << std::endl;
return 1;
}
SurfaceMesh sm;
in >> sm;
// a halfedge on the border
halfedge_descriptor bhd = CGAL::Polygon_mesh_processing::longest_border(sm).first;
// The UV property map that holds the parameterized values
typedef SurfaceMesh::Property_map<vertex_descriptor, Point_2> UV_pmap;
UV_pmap uv_map = sm.add_property_map<vertex_descriptor, Point_2>("h:uv").first;
SMP::parameterize(sm, bhd, uv_map);
std::ofstream out("result.off");
SMP::IO::output_uvmap_to_off(sm, bhd, uv_map, out);
return 0;
}