79 lines
2.3 KiB
C
79 lines
2.3 KiB
C
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// Copyright (c) 2001
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// Utrecht University (The Netherlands),
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// ETH Zurich (Switzerland),
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// INRIA Sophia-Antipolis (France),
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// Max-Planck-Institute Saarbruecken (Germany),
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// and Tel-Aviv University (Israel). All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org)
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//
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// $URL: https://github.com/CGAL/cgal/blob/v5.1/Kernel_d/include/CGAL/Kernel_d/PointHd_impl.h $
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// $Id: PointHd_impl.h 0779373 2020-03-26T13:31:46+01:00 Sébastien Loriot
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// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
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//
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//
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// Author(s) : Michael Seel <seel@mpi-sb.mpg.de>
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#ifndef CGAL_POINTHD_C
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#define CGAL_POINTHD_C
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namespace CGAL {
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#define PointHd PointHd2
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template <class RT, class LA>
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PointHd<RT,LA> PointHd<RT,LA>::
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transform(const Aff_transformationHd<RT,LA>& t) const
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{ typename LA::Vector res = t(vector_rep());
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return PointHd<RT,LA>(dimension(),res.begin(),res.end()); }
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template <class RT, class LA>
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VectorHd<RT,LA> PointHd<RT,LA>::operator-(const Origin&) const
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{ return VectorHd<RT,LA>(Base(*this)); }
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template <class RT, class LA>
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PointHd<RT,LA> PointHd<RT,LA>::operator+(const VectorHd<RT,LA> &v) const
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{ PointHd<RT,LA> res(dimension());
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res.ptr()->homogeneous_add(ptr(), v.ptr());
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return res;
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}
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template <class RT, class LA>
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PointHd<RT,LA> PointHd<RT,LA>::operator-(const VectorHd<RT,LA> &v) const
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{ PointHd<RT,LA> res(dimension());
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res.ptr()->homogeneous_sub(ptr(), v.ptr());
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return res;
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}
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template <class RT, class LA>
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PointHd<RT,LA>& PointHd<RT,LA>::operator+= (const VectorHd<RT,LA>& v)
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{ int d = dimension();
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PointHd<RT,LA> old(*this);
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*this = PointHd<RT,LA>(d);
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ptr()->homogeneous_add(old.ptr(), v.ptr());
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return *this;
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}
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template <class RT, class LA>
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PointHd<RT,LA>& PointHd<RT,LA>::operator-= (const VectorHd<RT,LA>& v)
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{ int d = dimension();
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PointHd<RT,LA> old(*this);
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*this = PointHd<RT,LA>(d);
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ptr()->homogeneous_sub(old.ptr(), v.ptr());
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return *this;
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}
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template <class RT, class LA>
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std::istream& operator>>(std::istream& I, PointHd<RT,LA>& p)
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{ p.copy_on_write(); p.ptr()->read(I);
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CGAL_assertion_msg((p.homogeneous(p.dimension()) > 0),
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"operator>>: denominator of point must be larger than zero.");
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return I;
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}
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template <class RT, class LA>
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std::ostream& operator<<(std::ostream& O, const PointHd<RT,LA>& p)
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{ p.ptr()->print(O,"PointHd"); return O; }
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#undef PointHd
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} //namespace CGAL
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#endif // CGAL_POINTHD_C
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