21 #include "../trigonometric.hpp" 
   22 #include "../exponential.hpp" 
   27 #if GLM_MESSAGES == GLM_ENABLE && !defined(GLM_EXT_INCLUDED) 
   28 #       pragma message("GLM: GLM_EXT_quaternion_trigonometric extension included") 
   40         template<
typename T, qualifier Q>
 
   41         GLM_FUNC_DECL T 
angle(qua<T, Q> 
const& x);
 
   47         template<
typename T, qualifier Q>
 
   48         GLM_FUNC_DECL vec<3, T, Q> 
axis(qua<T, Q> 
const& x);
 
   57         template<
typename T, qualifier Q>
 
   63 #include "quaternion_trigonometric.inl" 
GLM_EXT_vector_relational 
GLM_FUNC_DECL T angle(qua< T, Q > const &x)
Returns the quaternion rotation angle. 
GLM_FUNC_DECL qua< T, Q > angleAxis(T const &angle, vec< 3, T, Q > const &axis)
Build a quaternion from an angle and a normalized axis. 
GLM_FUNC_DECL vec< 3, T, Q > axis(qua< T, Q > const &x)
Returns the q rotation axis.