songsenand
/
cgal
mirror of https://github.com/CGAL/cgal
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Clean up draw_nef_3 example

This commit is contained in:
Jasmeet Singh 2019-07-03 13:57:51 -07:00
parent e5986189a5
commit 53bed9f541
1 changed files with 8 additions and 41 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

49
Nef_3/examples/Nef_3/draw_nef_3.cpp
View File

@ -1,60 +1,27 @@
#include <CGAL/Exact_predicates_exact_constructions_kernel.h>
//#include <CGAL/Exact_integer.h>
//#include <CGAL/Extended_homogeneous.h>
#include <CGAL/Nef_polyhedron_3.h>
#include <CGAL/Polyhedron_3.h>
#include <CGAL/draw_nef_3.h>
#include <CGAL/Surface_mesh.h>
#include <CGAL/boost/graph/convert_nef_polyhedron_to_polygon_mesh.h>
#include <fstream>
#include <iostream>
typedef CGAL::Exact_predicates_exact_constructions_kernel Kernel;
//typedef CGAL::Exact_integer NT;
//typedef CGAL::Extended_homogeneous<NT> Kernel;
typedef CGAL::Surface_mesh<Kernel::Point_3> Surface_mesh;
typedef CGAL::Nef_polyhedron_3<Kernel> Nef_polyhedron;
typedef Nef_polyhedron::Plane_3 Plane_3;
typedef CGAL::Polyhedron_3<Kernel> Polyhedron;
typedef CGAL::Exact_predicates_exact_constructions_kernel Kernel;
typedef CGAL::Polyhedron_3<Kernel> Polyhedron;
typedef CGAL::Nef_polyhedron_3<Kernel> Nef_polyhedron;
int main(int argc, char *argv[])
{
// read OFF file into a polyhedron
Polyhedron P;
std::ifstream ifs((argc > 1) ? argv[1] : "data/cross.off");
ifs >> P;
std::cout << "============== Polyhedron =============" << std::endl
<< std::endl;
std::cout << "Number of vertices: " << P.size_of_vertices() << std::endl;
std::cout << "Number of halfedges: " << P.size_of_halfedges() << std::endl;
std::cout << "Number of facets: " << P.size_of_facets() << std::endl
<< std::endl;
// initialize nef from polyhedron
Nef_polyhedron N(P);
std::cout << "================= Nef ==================" << std::endl
<< std::endl;
std::cout << "Number of volumes: " << N.number_of_volumes() << std::endl;
std::cout << "Number of vertices: " << N.number_of_vertices() << std::endl;
std::cout << "Number of edges: " << N.number_of_edges() << std::endl;
std::cout << "Number of facets: " << N.number_of_facets() << std::endl
<< std::endl;
std::cout << "Number of halfedges: " << N.number_of_halfedges() << std::endl;
std::cout << "Number of halffacets: " << N.number_of_halffacets() << std::endl
<< std::endl;
std::cout << "Number of sfaces: " << N.number_of_sfaces() << std::endl;
std::cout << "Number of shalfedges : " << N.number_of_shalfedges()
<< std::endl;
std::cout << "Number of shalfloops: " << N.number_of_shalfloops() << std::endl
<< std::endl;
// output the result into a Surface_mesh
Surface_mesh output;
CGAL::convert_nef_polyhedron_to_polygon_mesh(N, output);
std::ofstream out;
out.open("out.off");
out << output;
out.close();
// draw Nef Polyhedron
CGAL::draw(N);
return EXIT_SUCCESS;
}