21 #include "../common.hpp"    22 #include "../trigonometric.hpp"    23 #include "../geometric.hpp"    25 #if GLM_MESSAGES == GLM_ENABLE && !defined(GLM_EXT_INCLUDED)    26 #   pragma message("GLM: GLM_EXT_quaternion_transform extension included")    42     template<
typename T, qualifier Q>
    43     GLM_FUNC_DECL qua<T, Q> 
rotate(qua<T, Q> 
const& q, T 
const& 
angle, vec<3, T, Q> 
const& 
axis);
    47 #include "quaternion_transform.inl" GLM_FUNC_DECL vec< 3, T, Q > axis(qua< T, Q > const &x)
Returns the q rotation axis. 
GLM_FUNC_DECL qua< T, Q > rotate(qua< T, Q > const &q, T const &angle, vec< 3, T, Q > const &axis)
Rotates a quaternion from a vector of 3 components axis and an angle. 
GLM_FUNC_DECL T angle(qua< T, Q > const &x)
Returns the quaternion rotation angle.