150 lines
4.7 KiB
C++
150 lines
4.7 KiB
C++
// Copyright (c) 2000
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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: https://github.com/CGAL/cgal/blob/v5.1/Cartesian_kernel/include/CGAL/Cartesian/Translation_rep_3.h $
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// $Id: Translation_rep_3.h 0779373 2020-03-26T13:31:46+01:00 Sébastien Loriot
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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) : Herve Bronnimann
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#ifndef CGAL_CARTESIAN_TRANSLATION_REP_3_H
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#define CGAL_CARTESIAN_TRANSLATION_REP_3_H
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namespace CGAL {
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template < class R >
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class Translation_repC3 : public Aff_transformation_rep_baseC3<R>
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{
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friend class Aff_transformation_repC3<R>;
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friend class Scaling_repC3<R>;
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public:
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typedef typename R::FT FT;
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typedef Aff_transformation_rep_baseC3<R> Transformation_base_3;
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typedef Aff_transformation_repC3<R> Transformation_3;
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typedef Translation_repC3<R> Translation_3;
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typedef Scaling_repC3<R> Scaling_3;
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typedef typename Transformation_base_3::Point_3 Point_3;
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typedef typename Transformation_base_3::Vector_3 Vector_3;
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typedef typename Transformation_base_3::Direction_3 Direction_3;
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typedef typename Transformation_base_3::Aff_transformation_3
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Aff_transformation_3;
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Translation_repC3() {}
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Translation_repC3(const Vector_3 &tv) : translationvector_(tv) {}
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virtual ~Translation_repC3() {}
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virtual Point_3 transform(const Point_3 &p) const
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{
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return p + translationvector_;
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}
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virtual Vector_3 transform(const Vector_3 &v) const
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{
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return v;
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}
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virtual Direction_3 transform(const Direction_3 &d) const
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{
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return d;
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}
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virtual Aff_transformation_3 operator*(const Transformation_base_3 &t) const
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{
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return t.compose(*this);
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}
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virtual Aff_transformation_3 compose(const Transformation_3 &t) const
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{
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return Aff_transformation_3(t.t11,
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t.t12,
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t.t13,
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t.t11 * translationvector_.x()
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+ t.t12 * translationvector_.y()
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+ t.t13 * translationvector_.z() + t.t14,
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t.t21,
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t.t22,
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t.t23,
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t.t21 * translationvector_.x()
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+ t.t22 * translationvector_.y()
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+ t.t23 * translationvector_.z() + t.t24,
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t.t31,
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t.t32,
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t.t33,
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t.t31 * translationvector_.x()
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+ t.t32 * translationvector_.y()
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+ t.t33 * translationvector_.z() + t.t34);
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}
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virtual Aff_transformation_3 compose(const Translation_3 &t) const
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{
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return Aff_transformation_3(TRANSLATION,
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translationvector_ + t.translationvector_);
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}
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virtual Aff_transformation_3 compose(const Scaling_3 &t) const
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{
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FT ft0(0);
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return Aff_transformation_3(t.scalefactor_,
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ft0,
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ft0,
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t.scalefactor_ * translationvector_.x(),
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ft0,
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t.scalefactor_,
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ft0,
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t.scalefactor_ * translationvector_.y(),
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ft0,
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ft0,
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t.scalefactor_,
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t.scalefactor_ * translationvector_.z());
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}
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virtual Aff_transformation_3 inverse() const
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{
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return Aff_transformation_3(TRANSLATION, - translationvector_);
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}
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virtual Aff_transformation_3 transpose() const
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{
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return Aff_transformation_3(TRANSLATION, translationvector_);
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}
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virtual bool is_even() const
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{
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return true;
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}
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virtual FT cartesian(int i, int j) const
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{
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if (j==i) return FT(1);
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if (j==3) return translationvector_[i];
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return FT(0);
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}
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virtual std::ostream &print(std::ostream &os) const
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{
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os << "Aff_transformationC3(VectorC3("<< translationvector_.x() << ","
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<< translationvector_.y() << ","
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<< translationvector_.z() << "))\n";
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return os;
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}
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private:
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Vector_3 translationvector_;
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};
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} //namespace CGAL
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#endif // CGAL_CARTESIAN_TRANSLATION_REP_3_H
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