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Use only anchors to compute area vector

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This commit is contained in:
Grant Sanderson
2022-12-22 11:46:51 -07:00
parent 33682b7199
commit ff090c016f
1 changed files with 4 additions and 4 deletions
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8
manimlib/mobject/types/vectorized_mobject.py
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@ -758,9 +758,10 @@ class VMobject(Mobject):
if not self.has_points(): if not self.has_points():
return np.zeros(3) return np.zeros(3)
nppc = self.n_points_per_curve
points = self.get_points() points = self.get_points()
p0 = points[:-1] p0 = points[0::nppc]
p1 = points[1:] p1 = points[nppc - 1::nppc]
# Each term goes through all edges [(x1, y1, z1), (x2, y2, z2)] # Each term goes through all edges [(x1, y1, z1), (x2, y2, z2)]
return 0.5 * np.array([ return 0.5 * np.array([
@ -1023,10 +1024,9 @@ class VMobject(Mobject):
super().set_points(points) super().set_points(points)
return self return self
@triggers_refreshed_triangulation
def append_points(self, points: Vect3Array): def append_points(self, points: Vect3Array):
super().append_points(points) super().append_points(points)
self.refresh_unit_normal()
self.refresh_triangulation()
return self return self
@triggers_refreshed_triangulation @triggers_refreshed_triangulation