mirror of https://github.com/CGAL/cgal
37 lines
1019 B
C++
37 lines
1019 B
C++
#include <CGAL/Simple_cartesian.h>
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#include <CGAL/Surface_mesh.h>
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#include <iostream>
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#include <fstream>
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#include <boost/graph/connected_components.hpp>
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typedef CGAL::Simple_cartesian<double> Kernel;
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typedef Kernel::Point_3 Point;
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typedef CGAL::Surface_mesh<Point> Mesh;
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typedef boost::graph_traits<Mesh>::vertex_descriptor vertex_descriptor;
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int main(int argc, char* argv[])
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{
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const char* filename = (argc > 1) ? argv[1] : "data/prim.off";
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Mesh sm;
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if(!CGAL::read_polygon_mesh(filename, sm))
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{
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std::cerr << "Invalid input." << std::endl;
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return 1;
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}
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Mesh::Property_map<vertex_descriptor,int> ccmap;
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ccmap = sm.add_property_map<vertex_descriptor,int>("v:CC").first;
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int num = connected_components(sm, ccmap);
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std::cout << num << " connected components" << std::endl;
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for(vertex_descriptor v : vertices(sm)){
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std::cout << v << " is in component " << ccmap[v] << std::endl;
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}
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return 0;
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}
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