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fixed centering issue

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This commit is contained in:
Ben Hambrecht 2018-04-20 21:49:39 +02:00
parent 6e2a4f4c5d
commit 791b40037d
1 changed files with 6 additions and 10 deletions
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16
active_projects/eop/chapter1.py
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@ -1230,10 +1230,6 @@ class PascalBrickWall(VMobject):
rects.add(new_rect)
return rects
def get_center(self):
return self.rects.get_center()
# just in case some more submobs have been added
# that displace the center
def get_subdivs_for_level(self,r):
subdivs = VGroup()
@ -1277,6 +1273,7 @@ class PascalBrickWall(VMobject):
for center in centers:
rects.add(rect.copy().move_to(center))
rects.move_to(self.get_center())
if with_labels == False:
@ -1291,7 +1288,6 @@ class PascalBrickWall(VMobject):
# not simply move_to bc coin_seq is not centered
rect.add(coin_seq)
rects.move_to(self.get_center())
return rects
def get_coin_sequences_for_level(self,r):
@ -1368,9 +1364,8 @@ class SplitRectsInBrickWall(Animation):
for subdiv in self.subdivs:
x = subdiv.get_start()[0]
start = self.mobject.get_center()
end = self.mobject.get_center()
start += x * RIGHT + 0.5 * self.mobject.height * UP
end += x * RIGHT + alpha * 0.5 * self.mobject.height * DOWN
end = start + alpha * self.mobject.height * DOWN
subdiv.put_start_and_end_on(start,end)
@ -1579,6 +1574,7 @@ class PascalBrickWallScene(Scene):
half_merged_row = self.row.copy()
half_merged_row.subdiv_level += 1
half_merged_row.generate_points()
half_merged_row.move_to(self.row.get_center())
self.play(FadeIn(half_merged_row))
self.row = half_merged_row
@ -1668,7 +1664,7 @@ class PascalBrickWallScene(Scene):
def construct(self):
self.force_skipping()
#self.force_skipping()
randy = CoinFlippingPiCreature()
randy = randy.scale(0.5).move_to(3*DOWN + 6*LEFT)
@ -1893,11 +1889,12 @@ class PascalBrickWallScene(Scene):
)
self.wait()
# this tweaks an undesirable overlap in the next animation
self.merge_rects_by_subdiv()
self.wait()
print previous_row.get_center()
# show individual outcomes
outcomes = previous_row.get_outcome_rects_for_level(5, with_labels = False)
grouped_outcomes = VGroup()
@ -1919,7 +1916,6 @@ class PascalBrickWallScene(Scene):
target_outcomes = self.row.get_outcome_rects_for_level(6, with_labels = False)
target_outcomes.shift(w)
grouped_target_outcomes = VGroup()
index = 0
for i in range(7):