to_axang¶
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Quaternion.
to_axang
() → Tuple[numpy.ndarray, float]¶ Return equivalent axis-angle representation of the quaternion.
Returns: - axis (numpy.ndarray) – Three-dimensional axis to rotate about
- angle (float) – Amount of rotation, in radians, to rotate about.
Examples
>>> q = Quaternion([0.7071, 0.7071, 0.0, 0.0]) >>> q.to_axang() (array([1., 0., 0.]), 1.5707963267948966)