mirror of https://github.com/CGAL/cgal
158 lines
3.7 KiB
C++
158 lines
3.7 KiB
C++
// ======================================================================
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//
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// Copyright (c) 1999 The CGAL Consortium
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//
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// This software and related documentation is part of an INTERNAL release
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// of the Computational Geometry Algorithms Library (CGAL). It is not
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// intended for general use.
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//
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// ----------------------------------------------------------------------
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//
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// release :
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// release_date :
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//
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// file : Direction_2.h
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// package : _2
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// revision : $Revision$
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// revision_date : $Date$
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// author(s) : Stefan Schirra
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//
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//
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// coordinator : MPI, Saarbruecken (<Stefan.Schirra@mpi-sb.mpg.de>)
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// ======================================================================
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#ifndef CGAL_DIRECTION_2_H
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#define CGAL_DIRECTION_2_H
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#ifndef CGAL_REP_CLASS_DEFINED
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#error no representation class defined
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#endif
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#if defined CGAL_HOMOGENEOUS_H || defined CGAL_SIMPLE_HOMOGENEOUS_H
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#include <CGAL/DirectionH2.h>
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#endif
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#if defined CGAL_CARTESIAN_H || defined CGAL_SIMPLE_CARTESIAN_H
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#include <CGAL/Cartesian/Direction_2.h>
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#endif
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#include <CGAL/Vector_2.h>
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CGAL_BEGIN_NAMESPACE
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template <class R_>
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class Direction_2 : public R_::Direction_2_base
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{
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public:
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typedef R_ R;
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typedef typename R::RT RT;
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typedef typename R::FT FT;
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typedef typename R::Vector_2_base RVector_2;
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typedef typename R::Direction_2_base RDirection_2;
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// typedef typename R::Aff_transformation_2 Aff_transformation_2;
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Direction_2()
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{}
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Direction_2(const CGAL::Direction_2<R> &d)
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: RDirection_2(static_cast<const RDirection_2&>(d))
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{}
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Direction_2(const RDirection_2& d)
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: RDirection_2(d)
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{}
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Direction_2(const RVector_2& v)
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: RDirection_2(v)
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{}
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Direction_2(const RT &x, const RT &y)
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: RDirection_2(x,y)
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{}
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bool
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operator==(const CGAL::Direction_2<R> &d) const
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{ return RDirection_2::operator==(d); }
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bool
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operator!=(const CGAL::Direction_2<R> &d) const
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{ return !(*this == d); }
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bool
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operator>=(const CGAL::Direction_2<R> &d) const
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{ return RDirection_2::operator>=(d); }
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bool
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operator<=(const CGAL::Direction_2<R> &d) const
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{ return RDirection_2::operator<=(d); }
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bool
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operator>(const CGAL::Direction_2<R> &d) const
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{ return RDirection_2::operator>(d); }
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bool
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operator<(const CGAL::Direction_2<R> &d) const
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{ return RDirection_2::operator<(d); }
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bool
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counterclockwise_in_between(const CGAL::Direction_2<R> &d1,
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const CGAL::Direction_2<R> &d2) const
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{ return RDirection_2::counterclockwise_in_between(d1,d2); }
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CGAL::Vector_2<R>
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vector() const
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{ return static_cast<CGAL::Vector_2<R> >(RDirection_2::to_vector()); }
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CGAL::Vector_2<R>
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to_vector() const
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{ return static_cast<CGAL::Vector_2<R> >(RDirection_2::to_vector()); }
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CGAL::Direction_2<R>
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transform(const CGAL::Aff_transformation_2<R> &t) const
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{ return RDirection_2::transform(t); }
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CGAL::Direction_2<R>
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operator-() const
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{ return RDirection_2::operator-(); }
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RT
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delta(int i) const
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{ return RDirection_2::delta(i); }
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RT
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dx() const
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{ return RDirection_2::dx(); }
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RT
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dy() const
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{ return RDirection_2::dy(); }
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};
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#ifndef CGAL_NO_OSTREAM_INSERT_DIRECTION_2
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template < class R >
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std::ostream &
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operator<<(std::ostream &os, const Direction_2<R> &d)
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{
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typedef typename R::Direction_2_base RDirection_2;
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return os << static_cast<const RDirection_2&>(d);
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}
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#endif // CGAL_NO_OSTREAM_INSERT_DIRECTION_2
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#ifndef CGAL_NO_ISTREAM_EXTRACT_DIRECTION_2
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template < class R >
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std::istream &
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operator>>(std::istream &is, Direction_2<R> &p)
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{
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typedef typename R::Direction_2_base RDirection_2;
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return is >> static_cast<RDirection_2&>(p);
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}
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#endif // CGAL_NO_ISTREAM_EXTRACT_DIRECTION_2
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CGAL_END_NAMESPACE
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#endif // CGAL_DIRECTION_2_H
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