cgal/BGL/examples/BGL_polyhedron_3/range.cpp

69 lines
1.5 KiB
C++

#include <CGAL/Simple_cartesian.h>
#include <CGAL/Polyhedron_3.h>
#include <CGAL/iterator_range.h>
#include <CGAL/IO/Polyhedron_iostream.h>
#include <CGAL/boost/graph/graph_traits_Polyhedron_3.h>
#include <boost/foreach.hpp>
#include <iostream>
#include <fstream>
#include <list>
#include <algorithm>
typedef CGAL::Simple_cartesian<double> Kernel;
typedef CGAL::Polyhedron_3<Kernel> Polyhedron;
typedef boost::graph_traits<Polyhedron>::vertex_descriptor vertex_descriptor;
typedef boost::graph_traits<Polyhedron>::vertex_iterator vertex_iterator;
typedef CGAL::iterator_range<vertex_iterator> vertex_range;
vertex_range vertices_range(const Polyhedron& p)
{
return vertex_range(vertices(p));
}
struct Fct
{
void operator()(const vertex_descriptor& vd) const
{
std::cout << vd->point() << std::endl;
}
};
void fct(const Polyhedron& p)
{
vertex_range vr(vertices(p));
#ifndef CGAL_NO_CPP0X_RANGE_BASED_FOR
std::cout << "new for loop" << std::endl;
for(vertex_descriptor vd : vr){
std::cout << vd->point() << std::endl;
}
#endif
std::cout << "BOOST_FOREACH" << std::endl;
BOOST_FOREACH(vertex_descriptor vd, vr){
std::cout << vd->point() << std::endl;
}
std::cout << "boost::tie + std::for_each" << std::endl;
vertex_iterator vb, ve;
boost::tie(vb,ve) = vertices_range(p);
std::for_each(vb,ve, Fct());
}
int main(int, char** argv)
{
Polyhedron P;
std::ifstream in(argv[1]);
in >> P ;
fct(P);
return 0;
}