quaternion_norm

compas.geometry.quaternion_norm(q)

Calculates the length (euclidean norm) of a quaternion.

Parameters

q ([float, float, float, float] | compas.geometry.Quaternion) – Quaternion or sequence of four floats [w, x, y, z].

Returns

float – The length (euclidean norm) of a quaternion.

References

• Quaternion Norm: http://mathworld.wolfram.com/QuaternionNorm.html