1 /////////////////////////////////////////////////////////////////////////////////// 2 /// OpenGL Mathematics (glm.g-truc.net) 3 /// 4 /// Copyright (c) 2005 - 2014 G-Truc Creation (www.g-truc.net) 5 /// Permission is hereby granted, free of charge, to any person obtaining a copy 6 /// of this software and associated documentation files (the "Software"), to deal 7 /// in the Software without restriction, including without limitation the rights 8 /// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 /// copies of the Software, and to permit persons to whom the Software is 10 /// furnished to do so, subject to the following conditions: 11 /// 12 /// The above copyright notice and this permission notice shall be included in 13 /// all copies or substantial portions of the Software. 14 /// 15 /// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 /// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 /// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 /// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 /// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 /// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 21 /// THE SOFTWARE. 22 /// 23 /// @ref gtx_vector_angle 24 /// @file glm/gtx/vector_angle.hpp 25 /// @date 2005-12-30 / 2011-06-07 26 /// @author Christophe Riccio 27 /// 28 /// @see core (dependence) 29 /// @see gtx_quaternion (dependence) 30 /// @see gtx_epsilon (dependence) 31 /// 32 /// @defgroup gtx_vector_angle GLM_GTX_vector_angle 33 /// @ingroup gtx 34 /// 35 /// @brief Compute angle between vectors 36 /// 37 /// <glm/gtx/vector_angle.hpp> need to be included to use these functionalities. 38 /////////////////////////////////////////////////////////////////////////////////// 39 40 #ifndef GLM_GTX_vector_angle 41 #define GLM_GTX_vector_angle 42 43 // Dependency: 44 #include "../glm.hpp" 45 #include "../gtc/epsilon.hpp" 46 #include "../gtx/quaternion.hpp" 47 #include "../gtx/rotate_vector.hpp" 48 49 #if(defined(GLM_MESSAGES) && !defined(GLM_EXT_INCLUDED)) 50 # pragma message("GLM: GLM_GTX_vector_angle extension included") 51 #endif 52 53 namespace glm 54 { 55 /// @addtogroup gtx_vector_angle 56 /// @{ 57 58 //! Returns the absolute angle between two vectors 59 //! Parameters need to be normalized. 60 /// @see gtx_vector_angle extension 61 template <typename vecType> 62 GLM_FUNC_DECL typename vecType::value_type angle( 63 vecType const & x, 64 vecType const & y); 65 66 //! Returns the oriented angle between two 2d vectors 67 //! Parameters need to be normalized. 68 /// @see gtx_vector_angle extension. 69 template <typename T, precision P> 70 GLM_FUNC_DECL T orientedAngle( 71 detail::tvec2<T, P> const & x, 72 detail::tvec2<T, P> const & y); 73 74 //! Returns the oriented angle between two 3d vectors based from a reference axis. 75 //! Parameters need to be normalized. 76 /// @see gtx_vector_angle extension. 77 template <typename T, precision P> 78 GLM_FUNC_DECL T orientedAngle( 79 detail::tvec3<T, P> const & x, 80 detail::tvec3<T, P> const & y, 81 detail::tvec3<T, P> const & ref); 82 83 /// @} 84 }// namespace glm 85 86 #include "vector_angle.inl" 87 88 #endif//GLM_GTX_vector_angle 89
