You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

88 lines
3.0 KiB

  1. ///////////////////////////////////////////////////////////////////////////////////
  2. /// OpenGL Mathematics (glm.g-truc.net)
  3. ///
  4. /// Copyright (c) 2005 - 2013 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. #ifndef GLM_GTX_vector_angle
  40. #define GLM_GTX_vector_angle GLM_VERSION
  41. // Dependency:
  42. #include "../glm.hpp"
  43. #include "../gtc/epsilon.hpp"
  44. #include "../gtx/quaternion.hpp"
  45. #include "../gtx/rotate_vector.hpp"
  46. #if(defined(GLM_MESSAGES) && !defined(glm_ext))
  47. # pragma message("GLM: GLM_GTX_vector_angle extension included")
  48. #endif
  49. namespace glm
  50. {
  51. /// @addtogroup gtx_vector_angle
  52. /// @{
  53. //! Returns the absolute angle between two vectors
  54. //! Parameters need to be normalized.
  55. //! From GLM_GTX_vector_angle extension
  56. template <typename vecType>
  57. GLM_FUNC_QUALIFIER typename vecType::value_type angle(
  58. vecType const & x,
  59. vecType const & y);
  60. //! Returns the oriented angle between two 2d vectors
  61. //! Parameters need to be normalized.
  62. //! From GLM_GTX_vector_angle extension.
  63. template <typename T>
  64. GLM_FUNC_QUALIFIER T orientedAngle(
  65. detail::tvec2<T> const & x,
  66. detail::tvec2<T> const & y);
  67. //! Returns the oriented angle between two 3d vectors based from a reference axis.
  68. //! Parameters need to be normalized.
  69. //! From GLM_GTX_vector_angle extension.
  70. template <typename T>
  71. GLM_FUNC_QUALIFIER T orientedAngle(
  72. detail::tvec3<T> const & x,
  73. detail::tvec3<T> const & y,
  74. detail::tvec3<T> const & ref);
  75. /// @}
  76. }// namespace glm
  77. #include "vector_angle.inl"
  78. #endif//GLM_GTX_vector_angle