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Merge pull request #1364 from abhi-6988/fix-3d_vectors

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Fix Vector orientation in 3d
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Grant Sanderson 2021-02-06 09:08:19 -08:00 • committed by GitHub
commit 2493458e45
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4
manimlib/mobject/geometry.py
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@ -636,6 +636,10 @@ class Arrow(Line):
super().scale(length / self.get_length())
self.rotate(angle_of_vector(vect) - self.get_angle())
self.rotate(
PI / 2 - np.arccos(normalize(vect)[2]),
axis=rotate_vector(self.get_unit_vector(), -PI / 2),
)
self.shift(start - self.get_start())
self.refresh_triangulation()