mirror of https://github.com/CGAL/cgal
39 lines
1.1 KiB
C++
39 lines
1.1 KiB
C++
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
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#include <CGAL/Polyhedron_3.h>
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#include <CGAL/Surface_mesh.h>
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#include <CGAL/convex_hull_3.h>
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#include <vector>
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#include <fstream>
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typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
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typedef CGAL::Polyhedron_3<K> Polyhedron_3;
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typedef K::Point_3 Point_3;
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typedef CGAL::Surface_mesh<Point_3> Surface_mesh;
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int main(int argc, char* argv[])
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{
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std::ifstream in( (argc>1)? argv[1] : CGAL::data_file_path("points_3/cube.xyz"));
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std::vector<Point_3> points;
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Point_3 p;
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while(in >> p){
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points.push_back(p);
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}
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// define polyhedron to hold convex hull
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Polyhedron_3 poly;
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// compute convex hull of non-collinear points
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CGAL::convex_hull_3(points.begin(), points.end(), poly);
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std::cout << "The convex hull contains " << poly.size_of_vertices() << " vertices" << std::endl;
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Surface_mesh sm;
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CGAL::convex_hull_3(points.begin(), points.end(), sm);
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std::cout << "The convex hull contains " << num_vertices(sm) << " vertices" << std::endl;
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return 0;
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}
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