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Ammend FadeInFromPoint and add FadeOutToPoint

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This commit is contained in:
Grant Sanderson 2021-01-05 18:01:23 -08:00
parent 349a9c9cea
commit 38f9686d68
1 changed files with 18 additions and 1 deletions
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19
manimlib/animation/fading.py
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@ -1,3 +1,5 @@
import numpy as np
from manimlib.animation.animation import Animation from manimlib.animation.animation import Animation
from manimlib.animation.transform import Transform from manimlib.animation.transform import Transform
from manimlib.mobject.mobject import Group from manimlib.mobject.mobject import Group
@ -53,7 +55,22 @@ class FadeOut(Fade):
class FadeInFromPoint(FadeIn): class FadeInFromPoint(FadeIn):
def __init__(self, mobject, point, **kwargs): def __init__(self, mobject, point, **kwargs):
super().__init__(mobject, shift=mobject.get_center() - point, **kwargs) super().__init__(
mobject,
shift=mobject.get_center() - point,
scale=np.inf,
**kwargs,
)
class FadeOutToPoint(FadeOut):
def __init__(self, mobject, point, **kwargs):
super().__init__(
mobject,
shift=point - mobject.get_center(),
scale=0,
**kwargs,
)
class FadeTransform(Transform): class FadeTransform(Transform):