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  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_matrix_query
  24. /// @file glm/gtx/matrix_query.hpp
  25. /// @date 2007-03-05 / 2011-08-28
  26. /// @author Christophe Riccio
  27. ///
  28. /// @see core (dependence)
  29. /// @see gtx_vector_query (dependence)
  30. ///
  31. /// @defgroup gtx_matrix_query GLM_GTX_matrix_query
  32. /// @ingroup gtx
  33. ///
  34. /// @brief Query to evaluate matrix properties
  35. ///
  36. /// <glm/gtx/matrix_query.hpp> need to be included to use these functionalities.
  37. ///////////////////////////////////////////////////////////////////////////////////
  38. #ifndef GLM_GTX_matrix_query
  39. #define GLM_GTX_matrix_query GLM_VERSION
  40. // Dependency:
  41. #include "../glm.hpp"
  42. #include "../gtx/vector_query.hpp"
  43. #include <limits>
  44. #if(defined(GLM_MESSAGES) && !defined(glm_ext))
  45. # pragma message("GLM: GLM_GTX_matrix_query extension included")
  46. #endif
  47. namespace glm
  48. {
  49. /// @addtogroup gtx_matrix_query
  50. /// @{
  51. /// Return whether a matrix a null matrix.
  52. /// From GLM_GTX_matrix_query extension.
  53. template<typename T>
  54. bool isNull(
  55. detail::tmat2x2<T> const & m,
  56. T const & epsilon/* = std::numeric_limits<T>::epsilon()*/);
  57. /// Return whether a matrix a null matrix.
  58. /// From GLM_GTX_matrix_query extension.
  59. template<typename T>
  60. bool isNull(
  61. detail::tmat3x3<T> const & m,
  62. T const & epsilon/* = std::numeric_limits<T>::epsilon()*/);
  63. /// Return whether a matrix is a null matrix.
  64. /// From GLM_GTX_matrix_query extension.
  65. template<typename T>
  66. bool isNull(
  67. detail::tmat4x4<T> const & m,
  68. T const & epsilon/* = std::numeric_limits<T>::epsilon()*/);
  69. /// Return whether a matrix is an identity matrix.
  70. /// From GLM_GTX_matrix_query extension.
  71. template<typename genType>
  72. bool isIdentity(
  73. genType const & m,
  74. typename genType::value_type const & epsilon/* = std::numeric_limits<typename genType::value_type>::epsilon()*/);
  75. /// Return whether a matrix is a normalized matrix.
  76. /// From GLM_GTX_matrix_query extension.
  77. template<typename valType>
  78. bool isNormalized(
  79. detail::tmat2x2<valType> const & m,
  80. valType const & epsilon/* = std::numeric_limits<valType>::epsilon()*/);
  81. /// Return whether a matrix is a normalized matrix.
  82. /// From GLM_GTX_matrix_query extension.
  83. template<typename valType>
  84. bool isNormalized(
  85. detail::tmat3x3<valType> const & m,
  86. valType const & epsilon/* = std::numeric_limits<valType>::epsilon()*/);
  87. /// Return whether a matrix is a normalized matrix.
  88. /// From GLM_GTX_matrix_query extension.
  89. template<typename valType>
  90. bool isNormalized(
  91. detail::tmat4x4<valType> const & m,
  92. valType const & epsilon/* = std::numeric_limits<valType>::epsilon()*/);
  93. /// Return whether a matrix is an orthonormalized matrix.
  94. /// From GLM_GTX_matrix_query extension.
  95. template<typename valType, template <typename> class matType>
  96. bool isOrthogonal(
  97. matType<valType> const & m,
  98. valType const & epsilon/* = std::numeric_limits<genType>::epsilon()*/);
  99. /// @}
  100. }//namespace glm
  101. #include "matrix_query.inl"
  102. #endif//GLM_GTX_matrix_query