pyCGM2.Model.frame.quaternion_TO_angleAxis

pyCGM2.Model.frame.quaternion_TO_angleAxis(quaternion: ndarray) → ndarray

Converts a quaternion to an angle-axis representation.

Parameters:

quaternion (np.ndarray) – A 4-element array representing a quaternion.

Returns:

np.ndarray – Angle-axis representation of the quaternion.