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Changed implementation of angle_between

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This commit is contained in:
Grant Sanderson 2019-01-29 23:53:20 -08:00
parent 7a5c419297
commit a65dbf27d9
1 changed files with 2 additions and 3 deletions
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5
manimlib/utils/space_ops.py
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@ -142,9 +142,8 @@ def angle_between_vectors(v1, v2):
Returns the angle between two 3D vectors. Returns the angle between two 3D vectors.
This angle will always be btw 0 and TAU/2. This angle will always be btw 0 and TAU/2.
""" """
l1 = get_norm(v1) diff = (angle_of_vector(v1) - angle_of_vector(v2)) % TAU
l2 = get_norm(v2) return min(diff, TAU - diff)
return np.arccos(np.dot(v1, v2) / (l1 * l2))
def project_along_vector(point, vector): def project_along_vector(point, vector):