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Changed implementation of ShowPassingFlash to something that felt less confusing

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Grant Sanderson 2019-01-29 23:52:01 -08:00
parent 358b1e6313
commit 40273bab1d
1 changed files with 5 additions and 5 deletions
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10
manimlib/animation/indication.py
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@ -24,7 +24,6 @@ from manimlib.utils.rate_functions import smooth
from manimlib.utils.rate_functions import squish_rate_func
from manimlib.utils.rate_functions import there_and_back
from manimlib.utils.rate_functions import wiggle
from manimlib.utils.rate_functions import double_smooth
class FocusOn(Transform):
@ -125,10 +124,11 @@ class ShowPassingFlash(ShowPartial):
}
def get_bounds(self, alpha):
alpha *= (1 + self.time_width)
alpha -= self.time_width / 2.0
lower = max(0, alpha - self.time_width / 2.0)
upper = min(1, alpha + self.time_width / 2.0)
tw = self.time_width
upper = interpolate(0, 1 + tw, alpha)
lower = upper - tw
upper = min(upper, 1)
lower = max(lower, 0)
return (lower, upper)
def clean_up(self, *args, **kwargs):