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// Copyright (c) 1999 // Utrecht University (The Netherlands), // ETH Zurich (Switzerland), // INRIA Sophia-Antipolis (France), // Max-Planck-Institute Saarbruecken (Germany), // and Tel-Aviv University (Israel). All rights reserved. // // This file is part of CGAL (www.cgal.org) // // $URL: https://github.com/CGAL/cgal/blob/v6.1/Kernel_23/include/CGAL/Vector_3.h $ // $Id: include/CGAL/Vector_3.h b26b07a1242 $ // SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial // // // Author(s) : Andreas Fabri, Stefan Schirra #ifndef CGAL_VECTOR_3_H #define CGAL_VECTOR_3_H #include #include #include #include #include #include #include #include namespace CGAL { template class Vector_3 : public R_::Kernel_base::Vector_3 { typedef typename R_::RT RT; // https://doc.cgal.org/latest/Manual/devman_code_format.html#secprogramming_conventions typedef typename R_::FT FT_; typedef typename R_::Segment_3 Segment_3; typedef typename R_::Ray_3 Ray_3; typedef typename R_::Line_3 Line_3; typedef typename R_::Point_3 Point_3; typedef typename R_::Direction_3 Direction_3; typedef typename R_::Aff_transformation_3 Aff_transformation_3; typedef Vector_3 Self; static_assert(std::is_same::value); public: typedef Dimension_tag<3> Ambient_dimension; typedef Dimension_tag<0> Feature_dimension; typedef typename R_::Cartesian_const_iterator_3 Cartesian_const_iterator; typedef typename R_::Kernel_base::Vector_3 Rep; const Rep& rep() const { return *this; } Rep& rep() { return *this; } typedef R_ R; Vector_3() {} Vector_3(const Rep& v) : Rep(v) {} Vector_3(Rep&& v) : Rep(std::move(v)) {} Vector_3(const Point_3& a, const Point_3& b) : Rep(typename R::Construct_vector_3()(Return_base_tag(), a, b)) {} explicit Vector_3(const Segment_3& s) : Rep(typename R::Construct_vector_3()(Return_base_tag(), s)) {} explicit Vector_3(const Ray_3& r) : Rep(typename R::Construct_vector_3()(Return_base_tag(), r)) {} explicit Vector_3(const Line_3& l) : Rep(typename R::Construct_vector_3()(Return_base_tag(), l)) {} Vector_3(const Null_vector& v) : Rep(typename R::Construct_vector_3()(Return_base_tag(), v)) {} template < typename T1, typename T2, typename T3 > Vector_3(T1&& x, T2&& y, T3&& z) : Rep(typename R::Construct_vector_3()(Return_base_tag(), std::forward(x), std::forward(y), std::forward(z))) {} Vector_3(const RT& x, const RT& y, const RT& z, const RT& w) : Rep(typename R::Construct_vector_3()(Return_base_tag(), x, y, z, w)) {} friend void swap(Self& a, Self& b) #if !defined(__INTEL_COMPILER) && defined(__cpp_lib_is_swappable) noexcept(std::is_nothrow_swappable_v) #endif { using std::swap; swap(a.rep(), b.rep()); } Direction_3 direction() const { return R().construct_direction_3_object()(*this); } Vector_3 transform(const Aff_transformation_3 &t) const { return t.transform(*this); } Vector_3 operator-() const { return R().construct_opposite_vector_3_object()(*this); } Vector_3 operator-(const Vector_3& v) const { return R().construct_difference_of_vectors_3_object()(*this,v); } Vector_3& operator-=(const Vector_3& v) { *this = R().construct_difference_of_vectors_3_object()(*this,v); return *this; } Vector_3 operator+(const Vector_3& v) const { return R().construct_sum_of_vectors_3_object()(*this,v); } Vector_3& operator+=(const Vector_3& v) { *this = R().construct_sum_of_vectors_3_object()(*this,v); return *this; } Vector_3 operator/(const RT& c) const { return R().construct_divided_vector_3_object()(*this,c); } Vector_3& operator/=(const RT& c) { *this = R().construct_divided_vector_3_object()(*this,c); return *this; } Vector_3 operator/(const typename First_if_different::Type & c) const { return R().construct_divided_vector_3_object()(*this,c); } Vector_3& operator/=(const typename First_if_different::Type & c) { *this = R().construct_divided_vector_3_object()(*this,c); return *this; } Vector_3& operator*=(const RT& c) { *this = R().construct_scaled_vector_3_object()(*this,c); return *this; } Vector_3& operator*=(const typename First_if_different::Type & c) { *this = R().construct_scaled_vector_3_object()(*this,c); return *this; } decltype(auto) x() const { return R().compute_x_3_object()(*this); } decltype(auto) y() const { return R().compute_y_3_object()(*this); } decltype(auto) z() const { return R().compute_z_3_object()(*this); } decltype(auto) hx() const { return R().compute_hx_3_object()(*this); } decltype(auto) hy() const { return R().compute_hy_3_object()(*this); } decltype(auto) hz() const { return R().compute_hz_3_object()(*this); } decltype(auto) hw() const { return R().compute_hw_3_object()(*this); } decltype(auto) cartesian(int i) const { CGAL_kernel_precondition( (i == 0) || (i == 1) || (i == 2) ); if (i==0) return x(); if (i==1) return y(); return z(); } decltype(auto) homogeneous(int i) const { CGAL_kernel_precondition( (i >= 0) || (i <= 3) ); if (i==0) return hx(); if (i==1) return hy(); if (i==2) return hz(); return hw(); } int dimension() const { return 3; } decltype(auto) operator[](int i) const { return cartesian(i); } Cartesian_const_iterator cartesian_begin() const { return typename R::Construct_cartesian_const_iterator_3()(*this); } Cartesian_const_iterator cartesian_end() const { return typename R::Construct_cartesian_const_iterator_3()(*this,3); } decltype(auto) squared_length() const { return R().compute_squared_length_3_object()(*this); } }; template std::ostream& insert(std::ostream& os, const Vector_3& v, const Cartesian_tag&) { switch(IO::get_mode(os)) { case IO::ASCII : return os << v.x() << ' ' << v.y() << ' ' << v.z(); case IO::BINARY : write(os, v.x()); write(os, v.y()); write(os, v.z()); return os; default: os << "VectorC3(" << v.x() << ", " << v.y() << ", " << v.z() << ")"; return os; } } template std::ostream& insert(std::ostream& os, const Vector_3& v, const Homogeneous_tag&) { switch(IO::get_mode(os)) { case IO::ASCII : return os << v.hx() << ' ' << v.hy() << ' ' << v.hz() << ' ' << v.hw(); case IO::BINARY : write(os, v.hx()); write(os, v.hy()); write(os, v.hz()); write(os, v.hw()); return os; default: return os << "VectorH3(" << v.hx() << ", " << v.hy() << ", " << v.hz() << ", " << v.hw() << ')'; } } template < class R > std::ostream& operator<<(std::ostream& os, const Vector_3& v) { return insert(os, v, typename R::Kernel_tag() ); } template std::istream& extract(std::istream& is, Vector_3& v, const Cartesian_tag&) { typename R::FT x(0), y(0), z(0); switch(IO::get_mode(is)) { case IO::ASCII : is >> IO::iformat(x) >> IO::iformat(y) >> IO::iformat(z); break; case IO::BINARY : read(is, x); read(is, y); read(is, z); break; default: is.setstate(std::ios::failbit); std::cerr << "" << std::endl; std::cerr << "Stream must be in ASCII or binary mode" << std::endl; break; } if (is) v = Vector_3(x, y, z); return is; } template std::istream& extract(std::istream& is, Vector_3& v, const Homogeneous_tag&) { typename R::RT hx, hy, hz, hw; switch(IO::get_mode(is)) { case IO::ASCII : is >> hx >> hy >> hz >> hw; break; case IO::BINARY : read(is, hx); read(is, hy); read(is, hz); read(is, hw); break; default: is.setstate(std::ios::failbit); std::cerr << "" << std::endl; std::cerr << "Stream must be in ASCII or binary mode" << std::endl; break; } if (is) v = Vector_3(hx, hy, hz, hw); return is; } template < class R > std::istream& operator>>(std::istream& is, Vector_3& v) { return extract(is, v, typename R::Kernel_tag() ); } } //namespace CGAL #endif // CGAL_VECTOR_3_H