Thanks, I checked that link. The "CGAL/Polygon Mesh Processing" package is licensed on GPL: https://doc.cgal.org/latest/Manual/packages.html https://doc.cgal.or

Thanks, I checked that link. The "CGAL/Polygon Mesh Processing" package is licensed on GPL: https://doc.cgal.org/latest/Manual/packages.html https://doc.cgal.org/latest/Manual/packages.html And the mentioned other libraries doesn't have the features I want.