mirror of https://github.com/CGAL/cgal
46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
// Example program for the centroid() function for 2D points, 3D points and 3D triangles.
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#include <CGAL/Simple_cartesian.h>
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#include <CGAL/centroid.h>
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#include <vector>
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#include <iostream>
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typedef double FT;
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typedef CGAL::Simple_cartesian<FT> K;
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typedef K::Point_2 Point_2;
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typedef K::Point_3 Point_3;
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typedef K::Triangle_3 Triangle_3;
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int main()
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{
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// centroid of 2D points
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std::vector<Point_2> points_2;
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points_2.push_back(Point_2(1.0, 0.0));
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points_2.push_back(Point_2(2.0, 2.0));
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points_2.push_back(Point_2(3.0, 5.0));
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Point_2 c2 = CGAL::centroid(points_2.begin(), points_2.end(),CGAL::Dimension_tag<0>());
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std::cout << c2 << std::endl;
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// centroid of 3D points
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std::vector<Point_3> points_3;
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points_3.push_back(Point_3(1.0, 0.0, 0.5));
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points_3.push_back(Point_3(2.0, 2.0, 1.2));
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points_3.push_back(Point_3(3.0, 5.0, 4.5));
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Point_3 c3 = CGAL::centroid(points_3.begin(), points_3.end(),CGAL::Dimension_tag<0>());
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std::cout << c3 << std::endl;
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// centroid of 3D triangles
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std::list<Triangle_3> triangles_3;
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Point_3 p(1.0, 0.0, 0.0);
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Point_3 q(1.0, 2.0, 0.0);
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Point_3 r(0.0, 1.0, 3.0);
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Point_3 s(0.0, 2.0, 5.0);
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triangles_3.push_back(Triangle_3(p,q,r));
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triangles_3.push_back(Triangle_3(p,q,s));
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c3 = CGAL::centroid(triangles_3.begin(), triangles_3.end(),CGAL::Dimension_tag<2>());
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std::cout << c3 << std::endl;
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return 0;
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}
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