// Copyright (c) 2001  
// Utrecht University (The Netherlands),
// ETH Zurich (Switzerland),
// INRIA Sophia-Antipolis (France),
// Max-Planck-Institute Saarbruecken (Germany),
// and Tel-Aviv University (Israel).  All rights reserved. 
//
// This file is part of CGAL (www.cgal.org)
//
// $URL: https://github.com/CGAL/cgal/blob/releases/CGAL-5.0.2/Kernel_d/include/CGAL/Kernel_d/PointHd_impl.h $
// $Id: PointHd_impl.h 52164b1 2019-10-19T15:34:59+02:00 Sébastien Loriot
// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
// 
//
// Author(s)     : Michael Seel <seel@mpi-sb.mpg.de>

#ifndef CGAL_POINTHD_C
#define CGAL_POINTHD_C
namespace CGAL {
#define PointHd PointHd2

template <class RT, class LA>
PointHd<RT,LA> PointHd<RT,LA>::
transform(const Aff_transformationHd<RT,LA>& t) const
{ typename LA::Vector res = t(vector_rep());
  return PointHd<RT,LA>(dimension(),res.begin(),res.end()); }

template <class RT, class LA>
VectorHd<RT,LA> PointHd<RT,LA>::operator-(const Origin&) const 
{ return VectorHd<RT,LA>(Base(*this)); }

template <class RT, class LA>
PointHd<RT,LA> PointHd<RT,LA>::operator+(const VectorHd<RT,LA> &v) const
{ PointHd<RT,LA> res(dimension()); 
  res.ptr()->homogeneous_add(ptr(), v.ptr()); 
  return res; 
}

template <class RT, class LA>
PointHd<RT,LA> PointHd<RT,LA>::operator-(const VectorHd<RT,LA> &v) const
{ PointHd<RT,LA> res(dimension()); 
  res.ptr()->homogeneous_sub(ptr(), v.ptr()); 
  return res; 
}

template <class RT, class LA>
PointHd<RT,LA>& PointHd<RT,LA>::operator+= (const VectorHd<RT,LA>& v)
{ int d = dimension(); 
  PointHd<RT,LA> old(*this); 
  *this = PointHd<RT,LA>(d); 
  ptr()->homogeneous_add(old.ptr(), v.ptr()); 
  return *this; 
}

template <class RT, class LA>
PointHd<RT,LA>& PointHd<RT,LA>::operator-= (const VectorHd<RT,LA>& v)
{ int d = dimension(); 
  PointHd<RT,LA> old(*this); 
  *this = PointHd<RT,LA>(d); 
  ptr()->homogeneous_sub(old.ptr(), v.ptr()); 
  return *this; 
}

template <class RT, class LA>
std::istream& operator>>(std::istream& I, PointHd<RT,LA>& p)
{ p.copy_on_write(); p.ptr()->read(I); 
  CGAL_assertion_msg((p.homogeneous(p.dimension()) > 0), 
  "operator>>: denominator of point must be larger than zero.");
  return I; 
}

template <class RT, class LA>
std::ostream& operator<<(std::ostream& O, const PointHd<RT,LA>& p)
{ p.ptr()->print(O,"PointHd"); return O; } 

#undef PointHd 
} //namespace CGAL
#endif // CGAL_POINTHD_C
