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#include <CGAL/Simple_cartesian.h>
#include <CGAL/Surface_mesh.h>
#include <iostream>
#include <fstream>
#include <boost/graph/connected_components.hpp>
#include <boost/foreach.hpp>
typedef CGAL::Simple_cartesian<double> Kernel;
typedef Kernel::Point_3 Point;
typedef CGAL::Surface_mesh<Point> Mesh;
typedef boost::graph_traits<Mesh>::vertex_descriptor vertex_descriptor;
int main(int argc, char* argv[])
{
Mesh sm;
std::ifstream in((argc>1)?argv[1]:"data/prim.off");
in >> sm;
Mesh::Property_map<vertex_descriptor,int> ccmap;
ccmap = sm.add_property_map<vertex_descriptor,int>("v:CC").first;
int num = connected_components(sm, ccmap);
std::cout << num << " connected components" << std::endl;
BOOST_FOREACH(vertex_descriptor v, vertices(sm)){
std::cout << v << " is in component " << ccmap[v] << std::endl;
}
return 0;
}
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