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105 lines
3.2 KiB
105 lines
3.2 KiB
#ifndef Magnum_Math_Point2D_h |
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#define Magnum_Math_Point2D_h |
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/* |
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Copyright © 2010, 2011, 2012 Vladimír Vondruš <mosra@centrum.cz> |
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This file is part of Magnum. |
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Magnum is free software: you can redistribute it and/or modify |
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it under the terms of the GNU Lesser General Public License version 3 |
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only, as published by the Free Software Foundation. |
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Magnum is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU Lesser General Public License version 3 for more details. |
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*/ |
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/** @file |
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* @brief Class Magnum::Math::Point2D |
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*/ |
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#include "Vector3.h" |
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namespace Magnum { namespace Math { |
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/** |
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@brief Two-dimensional homogeneous coordinates |
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@tparam T Data type |
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Same as Vector3, except that constructors have default value for Z component |
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set to one. See also @ref matrix-vector for brief introduction. |
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@see Magnum::Point2D, Point3D |
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@configurationvalueref{Magnum::Math::Point2D} |
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*/ |
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template<class T> class Point2D: public Vector3<T> { |
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public: |
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/** |
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* @brief Default constructor |
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* |
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* @f[ |
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* \boldsymbol p = (0, 0, 1)^T |
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* @f] |
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*/ |
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inline constexpr /*implicit*/ Point2D(): Vector3<T>(T(0), T(0), T(1)) {} |
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/** |
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* @brief Constructor |
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* |
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* @f[ |
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* \boldsymbol p = (x, y, z)^T |
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* @f] |
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*/ |
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inline constexpr /*implicit*/ Point2D(T x, T y, T z = T(1)): Vector3<T>(x, y, z) {} |
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/** |
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* @brief Constructor |
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* |
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* @f[ |
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* \boldsymbol p = (v_x, v_y, z)^T |
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* @f] |
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*/ |
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inline constexpr /*implicit*/ Point2D(const Vector2<T>& xy, T z): Vector3<T>(xy, z) {} |
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/** |
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* @brief Construct 2D point from 2D vector |
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* |
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* @f[ |
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* \boldsymbol p = (v_x, v_y, 1)^T |
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* @f] |
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*/ |
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inline constexpr explicit Point2D(const Vector2<T>& xy): Vector3<T>(xy, T(1)) {} |
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/** @copydoc Vector::Vector(const Vector<size, U>&) */ |
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template<class U> inline constexpr explicit Point2D(const Vector<3, U>& other): Vector3<T>(other) {} |
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/** @brief Copy constructor */ |
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inline constexpr Point2D(const Vector<3, T>& other): Vector3<T>(other) {} |
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/** |
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* @brief Vector part of the point |
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* |
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* Equivalent to calling xy(). Useful for seamless 2D/3D integration. |
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* @see Point3D::vector() |
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*/ |
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inline Vector2<T>& vector() { return Vector3<T>::xy(); } |
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inline constexpr Vector2<T> vector() const { return Vector3<T>::xy(); } /**< @overload */ |
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MAGNUM_VECTOR_SUBCLASS_IMPLEMENTATION(Point2D, 3) |
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}; |
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MAGNUM_VECTOR_SUBCLASS_OPERATOR_IMPLEMENTATION(Point2D, 3) |
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/** @debugoperator{Magnum::Math::Point2D} */ |
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template<class T> inline Corrade::Utility::Debug operator<<(Corrade::Utility::Debug debug, const Point2D<T>& value) { |
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return debug << static_cast<const Vector<3, T>&>(value); |
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} |
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}} |
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namespace Corrade { namespace Utility { |
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/** @configurationvalue{Magnum::Math::Point2D} */ |
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template<class T> struct ConfigurationValue<Magnum::Math::Point2D<T>>: public ConfigurationValue<Magnum::Math::Vector<3, T>> {}; |
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}} |
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#endif
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