mirror of https://github.com/CGAL/cgal
222 lines
6.7 KiB
C++
222 lines
6.7 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 : Aff_transformation_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) : Andreas Fabri
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// Stefan Schirra
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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_AFF_TRANSFORMATION_2_H
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#define CGAL_AFF_TRANSFORMATION_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 // CGAL_REP_CLASS_DEFINED
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#if defined(CGAL_CFG_INCOMPLETE_TYPE_BUG_1) && \
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!defined(CGAL_NO_LINE_TRANSFORM_IN_AT)
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#define CGAL_NO_LINE_TRANSFORM_IN_AT
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#endif // CGAL_CFG_INCOMPLETE_TYPE_BUG_1
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#include <CGAL/Line_2.h>
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#if defined CGAL_HOMOGENEOUS_H || defined CGAL_SIMPLE_HOMOGENEOUS_H
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#include <CGAL/Aff_transformationH2.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/Aff_transformation_2.h>
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#endif
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CGAL_BEGIN_NAMESPACE
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template <class R_>
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class Aff_transformation_2 : public R_::Aff_transformation_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::Line_2_base RLine_2;
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typedef typename R::Direction_2_base RDirection_2;
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typedef typename R::Aff_transformation_2_base RAff_transformation_2;
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// default constructor
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Aff_transformation_2()
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: RAff_transformation_2()
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{}
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// copy constructor
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Aff_transformation_2(const CGAL::Aff_transformation_2<R> &t)
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: RAff_transformation_2(t)
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{}
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// up cast constructor
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Aff_transformation_2(const RAff_transformation_2& t)
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: RAff_transformation_2(t)
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{}
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// Identity:
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Aff_transformation_2(const Identity_transformation tag)
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: RAff_transformation_2(tag)
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{}
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// Translation:
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Aff_transformation_2(const Translation tag,
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const CGAL::Vector_2<R> &v)
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: RAff_transformation_2(tag, v)
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{}
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// Rational Rotation:
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Aff_transformation_2(const Rotation tag,
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const CGAL::Direction_2<R> &d,
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const RT &num,
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const RT &den = RT(1))
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: RAff_transformation_2(tag, RDirection_2(d), num, den)
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{}
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Aff_transformation_2(const Rotation tag,
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const RT &sin,
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const RT &cos,
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const RT &den = RT(1))
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: RAff_transformation_2(tag, sin, cos, den)
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{}
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// Reflection:
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Aff_transformation_2(const Reflection tag,
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const CGAL::Line_2<R>& l )
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: RAff_transformation_2(tag, l)
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{}
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// Scaling:
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Aff_transformation_2(const Scaling tag,
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const RT &s,
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const RT &w= RT(1))
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: RAff_transformation_2(tag, s, w)
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{}
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// The general case:
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Aff_transformation_2(const RT & m11,
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const RT & m12,
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const RT & m13,
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const RT & m21,
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const RT & m22,
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const RT & m23,
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const RT &w= RT(1))
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: RAff_transformation_2(m11, m12, m13,
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m21, m22, m23,
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w)
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{}
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Aff_transformation_2(const RT & m11, const RT & m12,
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const RT & m21, const RT & m22,
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const RT &w = RT(1))
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: RAff_transformation_2(m11, m12,
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m21, m22,
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w)
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{}
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~Aff_transformation_2()
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{}
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CGAL::Point_2<R> transform(const CGAL::Point_2<R> &p) const
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{ return RAff_transformation_2::transform(p); }
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CGAL::Point_2<R> operator()(const CGAL::Point_2<R> &p) const
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{ return transform(p); }
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CGAL::Vector_2<R> transform(const CGAL::Vector_2<R> &v) const
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{ return RAff_transformation_2::transform(v); }
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CGAL::Vector_2<R> operator()(const CGAL::Vector_2<R> &v) const
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{ return transform(v); }
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CGAL::Direction_2<R> transform(const CGAL::Direction_2<R> &d) const
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{ return RAff_transformation_2::transform(d); }
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CGAL::Direction_2<R> operator()(const CGAL::Direction_2<R> &d) const
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{ return transform(d); }
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CGAL::Line_2<R> transform(const CGAL::Line_2<R> &l) const
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{
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#ifndef CGAL_NO_LINE_TRANSFORM_IN_AT
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return RAff_transformation_2::transform(l);
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#else
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return
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((const RLine_2&)l).transform((const RAff_transformation_2&)(*this));
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#endif // CGAL_NO_LINE_TRANSFORM_IN_AT
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}
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CGAL::Line_2<R> operator()(const CGAL::Line_2<R> &l) const
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{ return transform(l); }
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CGAL::Aff_transformation_2<R>
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inverse() const
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{ return RAff_transformation_2::inverse(); }
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bool is_even() const
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{ return RAff_transformation_2::is_even(); }
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bool is_odd() const
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{ return !is_even(); }
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CGAL::Aff_transformation_2<R>
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operator*(const CGAL::Aff_transformation_2<R> &t) const
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{ return RAff_transformation_2::operator*(t); }
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FT cartesian(int i, int j) const
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{ return RAff_transformation_2::cartesian(i,j); }
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RT homogeneous(int i, int j) const
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{ return RAff_transformation_2::homogeneous(i,j); }
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FT m(int i, int j) const
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{ return RAff_transformation_2::m(i,j); }
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RT hm(int i, int j) const
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{ return RAff_transformation_2::hm(i,j); }
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};
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#ifndef CGAL_NO_OSTREAM_INSERT_AFF_TRANSFORMATION_2
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template < class R >
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std::ostream &
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operator<<(std::ostream &os, const CGAL::Aff_transformation_2<R> &t)
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{
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typedef typename R::Aff_transformation_2_base RAff_transformation_2;
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return os << static_cast<const RAff_transformation_2&>(t);
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}
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#endif // CGAL_NO_OSTREAM_INSERT_AFF_TRANSFORMATION_2
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#ifndef CGAL_NO_ISTREAM_EXTRACT_AFF_TRANSFORMATION_2
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template < class R >
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std::istream &
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operator>>(std::istream &is, CGAL::Aff_transformation_2<R> &t)
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{
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typedef typename R::Aff_transformation_2_base RAff_transformation_2;
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return is >> static_cast<RAff_transformation_2&>(t);
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}
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#endif // CGAL_NO_ISTREAM_EXTRACT_AFF_TRANSFORMATION_2
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CGAL_END_NAMESPACE
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#endif // CGAL_AFF_TRANSFORMATION_2_H
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