165 lines
4.0 KiB
C++
165 lines
4.0 KiB
C++
// Copyright (c) 1999
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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/Kernel_23/include/CGAL/Line_3.h $
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// $Id: Line_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) : Andreas Fabri
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// Stefan Schirra
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#ifndef CGAL_LINE_3_H
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#define CGAL_LINE_3_H
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#include <CGAL/assertions.h>
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#include <boost/type_traits/is_same.hpp>
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#include <CGAL/Kernel/Return_base_tag.h>
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#include <CGAL/Dimension.h>
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#include <CGAL/IO/io.h>
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namespace CGAL {
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template <class R_>
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class Line_3 : public R_::Kernel_base::Line_3
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{
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typedef typename R_::FT FT;
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typedef typename R_::Point_3 Point_3;
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typedef typename R_::Ray_3 Ray_3;
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typedef typename R_::Segment_3 Segment_3;
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typedef typename R_::Direction_3 Direction_3;
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typedef typename R_::Vector_3 Vector_3;
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typedef typename R_::Plane_3 Plane_3;
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typedef typename R_::Aff_transformation_3 Aff_transformation_3;
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typedef Line_3 Self;
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CGAL_static_assertion((boost::is_same<Self, typename R_::Line_3>::value));
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public:
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typedef Dimension_tag<3> Ambient_dimension;
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typedef Dimension_tag<1> Feature_dimension;
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typedef typename R_::Kernel_base::Line_3 Rep;
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const Rep& rep() const
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{
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return *this;
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}
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Rep& rep()
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{
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return *this;
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}
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typedef R_ R;
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Line_3() {}
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// conversion impl -> interface class
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Line_3(const Rep& l)
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: Rep(l) {}
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Line_3(const Point_3 & p, const Point_3 & q)
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: Rep(typename R::Construct_line_3()(Return_base_tag(), p, q)) {}
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explicit Line_3(const Segment_3 & s)
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: Rep(typename R::Construct_line_3()(Return_base_tag(), s)) {}
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explicit Line_3(const Ray_3 & r)
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: Rep(typename R::Construct_line_3()(Return_base_tag(), r)) {}
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Line_3(const Point_3 & p, const Direction_3 & d)
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: Rep(typename R::Construct_line_3()(Return_base_tag(), p, d)) {}
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Line_3(const Point_3 & p, const Vector_3 & v)
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: Rep(typename R::Construct_line_3()(Return_base_tag(), p, v)) {}
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Line_3 transform(const Aff_transformation_3 &t) const
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{
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return Line_3(t.transform(this->point()), t.transform(this->direction()));
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}
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Vector_3 to_vector() const
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{
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return R().construct_vector_3_object()(*this);
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}
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Direction_3 direction() const
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{
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return R().construct_direction_3_object()(*this);
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}
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bool has_on(const Point_3 &p) const
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{
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return R().has_on_3_object()(*this, p);
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//return has_on_boundary(p);
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}
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Point_3 point() const
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{
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return R().construct_point_on_3_object()(*this, 0);
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}
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Point_3 point(const FT i) const
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{
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return R().construct_point_on_3_object()(*this, i);
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}
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Line_3 opposite() const
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{
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return R().construct_opposite_line_3_object()(*this);
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}
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Plane_3 perpendicular_plane(const Point_3 &p) const
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{
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return R().construct_perpendicular_plane_3_object()(*this, p);
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}
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Point_3 projection(const Point_3 &p) const
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{
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return R().construct_projected_point_3_object()(*this, p);
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}
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bool is_degenerate() const
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{
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return R().is_degenerate_3_object()(*this);
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}
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};
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template < class R >
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std::ostream &
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operator<<(std::ostream &os, const Line_3<R> &l)
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{
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switch(get_mode(os)) {
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case IO::ASCII :
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return os << l.point(0) << ' ' << l.point(1);
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case IO::BINARY :
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return os << l.point(0) << l.point(1);
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default:
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return os << "Line_3(" << l.point(0) << ", " << l.point(1) << ")";
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}
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}
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template < class R >
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std::istream &
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operator>>(std::istream &is, Line_3<R> &l)
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{
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typename R::Point_3 p, q;
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is >> p >> q;
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if (is)
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l = Line_3<R>(p, q);
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return is;
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}
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} //namespace CGAL
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#endif // CGAL_LINE_3_H
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