mirror of https://github.com/CGAL/cgal
64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
// 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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// $URL$
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// $Id$
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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_VECTORHD_C
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#define CGAL_VECTORHD_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> VectorHd<RT,LA>::to_point() const
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{ return PointHd<RT,LA>(Base(*this)); }
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template <class RT,class LA>
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PointHd<RT,LA>
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operator+ (const Origin&, const VectorHd<RT,LA>& v)
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{ return v.to_point(); }
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template <class RT, class LA>
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DirectionHd<RT,LA> VectorHd<RT,LA>::
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direction() const
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{ CGAL_assertion_msg(!is_zero(), "VectorHd::direction: \
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zero vector cannot be a direction.");
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return DirectionHd<RT,LA>(*this);
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}
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template <class RT, class LA>
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VectorHd<RT,LA> VectorHd<RT,LA>::
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transform(const Aff_transformationHd<RT,LA>& t) const
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{ typename LA::Matrix m_at = t.matrix();
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int d = t.dimension();
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for (int i = 0; i < d; i++) m_at(i,d) = 0;
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typename LA::Vector res(m_at*vector_rep());
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return VectorHd<RT,LA>(dimension(),res.begin(),res.end());
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}
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template <class RT, class LA>
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std::istream& operator>>(std::istream& I, VectorHd<RT,LA>& v)
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{ v.copy_on_write(); v.ptr()->read(I);
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CGAL_assertion_msg((v.homogeneous(v.dimension()) > 0),
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"operator>>: denominator of vector 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 VectorHd<RT,LA>& v)
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{ v.ptr()->print(O,"VectorHd"); return O; }
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#undef PointHd
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} //namespace CGAL
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#endif // CGAL_VECTORHD_C
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