mirror of https://github.com/CGAL/cgal
88 lines
2.3 KiB
C++
88 lines
2.3 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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// coordinator : MPI, Saarbruecken
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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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CGAL_BEGIN_NAMESPACE
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template <class R_>
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class Direction_2 : public R_::Kernel_base::Direction_2
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{
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typedef typename R_::RT RT;
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typedef typename R_::Vector_2 Vector_2;
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typedef typename R_::Line_2 Line_2;
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typedef typename R_::Ray_2 Ray_2;
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typedef typename R_::Segment_2 Segment_2;
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typedef typename R_::Kernel_base::Direction_2 RDirection_2;
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public:
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typedef R_ R;
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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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Direction_2(const RDirection_2& d)
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: RDirection_2(d) {}
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Direction_2(const Vector_2& v)
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: RDirection_2(v) {}
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Direction_2(const Line_2& l)
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: RDirection_2(l) {}
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Direction_2(const Ray_2& r)
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: RDirection_2(r) {}
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Direction_2(const Segment_2& s)
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: RDirection_2(s) {}
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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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#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::Kernel_base::Direction_2 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::Kernel_base::Direction_2 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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