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More tiny tweaks for joint_angles

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This commit is contained in:
Grant Sanderson 2023-01-10 17:02:12 -08:00
parent eccaa8681e
commit 0205a37209
1 changed files with 5 additions and 3 deletions
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8
manimlib/mobject/types/vectorized_mobject.py
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@ -813,6 +813,8 @@ class VMobject(Mobject):
# needlessly throughout an animation
if self.has_fill() and vmobject.has_fill() and self.has_same_shape_as(vmobject):
vmobject.triangulation = self.triangulation
for mob in (self, vmobject):
mob.get_joint_angles()
return
for mob in self, vmobject:
@ -1037,8 +1039,8 @@ class VMobject(Mobject):
mob.needs_new_joint_angles = True
return self
def get_joint_angles(self):
if not self.needs_new_joint_angles:
def get_joint_angles(self, refresh: bool = False):
if not self.needs_new_joint_angles and not refresh:
return self.data["joint_angle"]
self.needs_new_joint_angles = False
@ -1076,7 +1078,7 @@ class VMobject(Mobject):
dots = (vect_to_vert * vect_from_vert).sum(1)
angle = np.arccos(arr_clip(dots, -1, 1))
sgn = np.sign(cross2d(vect_to_vert, vect_from_vert))
self.data["joint_angle"][:, 0] = sgn * angle
self.data["joint_angle"][:len(angle), 0] = sgn * angle
# If a given anchor point sits at the end of a curve,
# we set its angle equal to 0