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last tweaks for chapter 1

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This commit is contained in:
Ben Hambrecht 2018-05-10 17:09:53 +02:00
parent 240b9b8e44
commit 1456c8cb98
10 changed files with 208 additions and 41 deletions
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83
active_projects/eop/chapter1/brick_row_scene.py
View file

@ -312,31 +312,57 @@ class BrickRowScene(PiCreatureScene):
new_tails[i].shift(COIN_SEQUENCE_SPACING * DOWN)
self.play(FadeIn(new_tails))
decimal_tallies = VGroup()
# introduce notion of tallies
for (i, rect) in enumerate(self.row.get_rects_for_level(2)):
tally = DecimalTally(2-i, i)
tally.next_to(rect, UP)
decimal_tallies.add(tally)
self.play(FadeIn(tally))
self.wait()
self.add_foreground_mobject(single_flip_labels)
self.add_foreground_mobject(new_heads)
self.add_foreground_mobject(single_flip_labels_copy)
self.add_foreground_mobject(new_tails)
# show individual outcomes
outcomes = self.row.get_outcome_rects_for_level(2, with_labels = False)
# get individual outcomes
outcomes = self.row.get_outcome_rects_for_level(2, with_labels = False,
inset = True)
grouped_outcomes = VGroup(outcomes[0], outcomes[1:3], outcomes[3])
decimal_tallies = VGroup()
# introduce notion of tallies
rects = self.row.get_rects_for_level(2)
rect = rects[0]
tally = DecimalTally(2,0)
tally.next_to(rect, UP)
decimal_tallies.add(tally)
self.play(
LaggedStart(FadeIn, outcomes)
FadeIn(tally),
FadeIn(grouped_outcomes[0])
)
self.wait()
rect = rects[1]
tally = DecimalTally(1,1)
tally.next_to(rect, UP)
decimal_tallies.add(tally)
self.play(
LaggedStart(FadeOut, outcomes),
FadeIn(tally),
FadeOut(grouped_outcomes[0]),
FadeIn(grouped_outcomes[1])
)
self.wait()
rect = rects[2]
tally = DecimalTally(0,2)
tally.next_to(rect, UP)
decimal_tallies.add(tally)
self.play(
FadeIn(tally),
FadeOut(grouped_outcomes[1]),
FadeIn(grouped_outcomes[2])
)
self.wait()
self.play(
FadeOut(grouped_outcomes[2])
)
self.wait()
self.wait()
self.play(
FadeOut(single_flip_labels),
@ -346,7 +372,6 @@ class BrickRowScene(PiCreatureScene):
)
self.wait()
self.tallies = VGroup()
for (i, rect) in enumerate(self.row.get_rects_for_level(2)):
tally = TallyStack(2-i, i, show_decimals = False)
@ -386,7 +411,8 @@ class BrickRowScene(PiCreatureScene):
# CALLBACK TO SEQUENCES #
# # # # # # # # # # # # #
outcomes = self.row.get_outcome_rects_for_level(2, with_labels = True)
outcomes = self.row.get_outcome_rects_for_level(2, with_labels = True,
inset = True)
subdivs = self.row.get_sequence_subdivs_for_level(2)
self.play(
FadeIn(outcomes),
@ -396,7 +422,8 @@ class BrickRowScene(PiCreatureScene):
self.wait()
rect_to_dice = outcomes[1]
rect_to_dice = self.row.get_outcome_rects_for_level(2, with_labels = False,
inset = False)[1]
N = 10
dice_width = rect_to_dice.get_width()/N
dice_height = rect_to_dice.get_height()/N
@ -419,9 +446,8 @@ class BrickRowScene(PiCreatureScene):
self.play(
LaggedStart(FadeIn, all_dice),
FadeOut(rect_to_dice.label)
FadeOut(outcomes[1])
)
self.wait()
table = Ellipse(width = 1.5, height = 1)
@ -455,7 +481,6 @@ class BrickRowScene(PiCreatureScene):
run_time = 0.05)
)
self.wait()
self.play(
@ -513,14 +538,17 @@ class BrickRowScene(PiCreatureScene):
self.clear()
self.add(randy, self.row, old_row)
self.add_foreground_mobject(self.tallies)
self.add_foreground_mobject(self.tallies_copy)
self.play(
self.row.fade, 0.7,
old_row.fade, 0.7,
FadeOut(self.tallies),
FadeOut(self.tallies_copy),
)
# # # # # # # # # # # # # # # # #
# SHOW SPLITTING WITH OUTCOMES #
# # # # # # # # # # # # # # # # #
@ -685,13 +713,6 @@ class BrickRowScene(PiCreatureScene):
#rate_func = there_and_back_with_pause,
run_time = 5))
self.wait()
self.play(LaggedStart(
FadeOut, outcomes,
#rate_func = there_and_back_with_pause,
run_time = 5))
self.wait()
self.play(FadeIn(self.tallies))
brace1 = Brace(self.row.rects[2], UP)
brace2 = Brace(self.row.rects[3], UP)
@ -705,6 +726,15 @@ class BrickRowScene(PiCreatureScene):
Write(p2),
)
self.wait()
self.play(LaggedStart(
FadeOut, outcomes,
#rate_func = there_and_back_with_pause,
run_time = 5),
)
self.play(
FadeIn(self.tallies)
)
self.wait()
self.play(
FadeOut(brace1),
@ -715,7 +745,6 @@ class BrickRowScene(PiCreatureScene):
self.wait()
# put visuals for other probability distribtuions here
# back to three coin flips, show all 8 outcomes

16
active_projects/eop/chapter1/morph_brick_row_into_histogram.py
View file

@ -41,8 +41,9 @@ class GenericMorphBrickRowIntoHistogram(Scene):
for rect in self.row.rects:
rect.set_stroke(color = WHITE, width = 3)
self.wait()
self.play(self.row.rects.space_out_submobjects, {"factor" : 1.3})
self.wait()
anims = []
for brick in self.row.rects:
anims.append(brick.rotate)
@ -52,6 +53,7 @@ class GenericMorphBrickRowIntoHistogram(Scene):
anims.append(FadeOut(tallies))
self.play(*anims)
self.wait()
anims = []
for (i,brick) in enumerate(self.row.rects):
@ -59,6 +61,7 @@ class GenericMorphBrickRowIntoHistogram(Scene):
anims.append(self.bar_anchors[i])
anims.append({"direction" : UP, "buff" : 0})
self.play(*anims)
self.wait()
self.bars.create_outline()
anims = [
@ -68,6 +71,7 @@ class GenericMorphBrickRowIntoHistogram(Scene):
anims.append(FadeIn(self.bars.outline))
self.play(*anims)
self.wait()
class MorphBrickRowIntoHistogram3(GenericMorphBrickRowIntoHistogram):
@ -115,12 +119,14 @@ class MorphBrickRowIntoHistogram3(GenericMorphBrickRowIntoHistogram):
if i != 0:
y_guide.add(y_guide_label)
y_guides.add(y_guide)
self.wait()
self.play(
FadeIn(y_guides),
Animation(self.bars.outline),
Animation(self.bars)
)
self.wait()
self.play(
FadeIn(x_axis),
@ -137,10 +143,12 @@ class MorphBrickRowIntoHistogram3(GenericMorphBrickRowIntoHistogram):
total_area_group = VGroup(total_area_text, area_decimal)
total_area_group.move_to(2.7 * UP)
self.wait()
self.play(
FadeIn(total_area_text),
)
self.wait()
cumulative_areas = [0.125, 0.5, 0.875, 1]
covering_rects = self.bars.copy()
@ -165,6 +173,7 @@ class MorphBrickRowIntoHistogram3(GenericMorphBrickRowIntoHistogram):
FadeOut(covering_rects),
ShowCreation(total_area_rect)
)
self.wait()
@ -194,12 +203,14 @@ class MorphBrickRowIntoHistogram20(GenericMorphBrickRowIntoHistogram):
nb_tails_label = TextMobject("\# of tails")
nb_tails_label.move_to(5 * RIGHT + 2.5 * DOWN)
self.wait()
self.play(
FadeIn(x_axis),
FadeIn(x_labels),
FadeIn(nb_tails_label)
)
self.wait()
# draw y-guides
@ -221,6 +232,7 @@ class MorphBrickRowIntoHistogram20(GenericMorphBrickRowIntoHistogram):
self.bring_to_back(y_guides)
self.play(FadeIn(y_guides), Animation(self.bars))
self.wait()
histogram_width = self.bars.get_width()
histogram_height = self.bars.get_height()
@ -247,6 +259,7 @@ class MorphBrickRowIntoHistogram20(GenericMorphBrickRowIntoHistogram):
anims.append(ORIGIN)
self.play(*anims)
self.wait()
anims = []
for (guide, i, h) in zip(y_guides, prob_grid, y_guide_heights):
@ -265,6 +278,7 @@ class MorphBrickRowIntoHistogram20(GenericMorphBrickRowIntoHistogram):
anims.append(self.bars.get_bottom())
self.play(*anims)
self.wait()
class MorphBrickRowIntoHistogram100(MorphBrickRowIntoHistogram20):
CONFIG = {

29
active_projects/eop/chapter1/stacking_coins.py Normal file
View file

@ -0,0 +1,29 @@
from big_ol_pile_of_manim_imports import *
from active_projects.eop.reusable_imports import *
class StackingCoins(Scene):
def construct(self):
h = t = 0
heads_stack = HeadsStack(size = h)
heads_stack.next_to(0.5*LEFT + 3*DOWN, UP)
tails_stack = TailsStack(size = t)
tails_stack.next_to(0.5*RIGHT + 3*DOWN, UP)
self.add(heads_stack, tails_stack)
for i in range(120):
flip = np.random.choice(["H", "T"])
if flip == "H":
h += 1
new_heads_stack = HeadsStack(size = h)
new_heads_stack.next_to(0.5*LEFT + 3*DOWN, UP)
self.play(Transform(heads_stack, new_heads_stack,
run_time = 0.2))
elif flip == "T":
t += 1
new_tails_stack = TailsStack(size = t)
new_tails_stack.next_to(0.5*RIGHT + 3*DOWN, UP)
self.play(Transform(tails_stack, new_tails_stack,
run_time = 0.2))

31
active_projects/eop/chapter1/think_about_coin.py Normal file
View file

@ -0,0 +1,31 @@
from big_ol_pile_of_manim_imports import *
from active_projects.eop.reusable_imports import *
class RandyThinksAboutCoin(PiCreatureScene):
def construct(self):
randy = self.get_primary_pi_creature()
randy.center()
self.add(randy)
self.wait()
h_or_t = BinaryOption(UprightHeads().scale(3), UprightTails().scale(3),
text_scale = 1.5)
self.think(h_or_t, direction = LEFT)
v = 0.3
self.play(
h_or_t[0].shift,v*UP,
h_or_t[2].shift,v*DOWN,
)
self.play(
h_or_t[0].shift,2*v*DOWN,
h_or_t[2].shift,2*v*UP,
)
self.play(
h_or_t[0].shift,v*UP,
h_or_t[2].shift,v*DOWN,
)
self.wait()

46
active_projects/eop/chapter1/what_does_probability_mean.py Normal file
View file

@ -0,0 +1,46 @@
from big_ol_pile_of_manim_imports import *
class WhatDoesItReallyMean(TeacherStudentsScene):
CONFIG = {
"default_pi_creature_kwargs": {
"color": MAROON_E,
"flip_at_start": True,
},
}
def construct(self):
student_q = TextMobject("What does", "``probability''", "\emph{actually}", "mean?")
student_q.set_color_by_tex("probability", YELLOW)
self.student_says(student_q, target_mode = "sassy")
self.wait()
self.play(
self.students[1].change_mode, "plain"
)
self.wait()
self.play(RemovePiCreatureBubble(self.students[1]))
self.wait()
self.teacher_says("Don't worry -- philosophy can come later!")
self.wait()
class EmptyTSScene(TeacherStudentsScene):
CONFIG = {
"default_pi_creature_kwargs": {
"color": MAROON_E,
"flip_at_start": True,
},
}
def construct(self):
self.wait()
self.play(*[
ApplyMethod(pi.look_at,ORIGIN) for pi in self.get_pi_creatures()
])
self.wait(8)

5
active_projects/eop/reusables/binary_option.py
View file

@ -2,11 +2,14 @@ from mobject.types.vectorized_mobject import *
from mobject.svg.tex_mobject import *
class BinaryOption(VMobject):
CONFIG = {
"text_scale" : 0.5
}
def __init__(self, mob1, mob2, **kwargs):
VMobject.__init__(self, **kwargs)
text = TextMobject("or").scale(0.5)
text = TextMobject("or").scale(self.text_scale)
mob1.next_to(text, LEFT)
mob2.next_to(text, RIGHT)
self.add(mob1, text, mob2)

10
active_projects/eop/reusables/brick_row.py
View file

@ -6,8 +6,8 @@ from active_projects.eop.reusables.upright_coins import *
class BrickRow(VMobject):
CONFIG = {
"left_color" : RED,
"right_color" : BLUE,
"left_color" : COLOR_HEADS,
"right_color" : COLOR_TAILS,
"height" : 1.0,
"width" : 8.0,
"outcome_shrinkage_factor_x" : 0.95,
@ -104,14 +104,14 @@ class BrickRow(VMobject):
outcome_width = float(self.width) / (2 ** r)
outcome_height = self.height
corner_radius = min(0.1, 0.3 * min(outcome_width, outcome_height))
corner_radius = 0.1 # max(0.1, 0.3 * min(outcome_width, outcome_height))
# this scales down the corner radius for very narrow rects
rect = RoundedRectangle(
width = outcome_width,
height = outcome_height,
corner_radius = corner_radius,
fill_color = WHITE,
fill_opacity = 0.2,
fill_color = OUTCOME_COLOR,
fill_opacity = OUTCOME_OPACITY,
stroke_width = 0
)
rects = VGroup()

12
active_projects/eop/reusables/eop_constants.py
View file

@ -9,10 +9,16 @@ COIN_STROKE_WIDTH = 2
COIN_SEQUENCE_SPACING = 0.1
GRADE_COLOR_1 = COLOR_HEADS = RED
GRADE_COLOR_2 = COLOR_TAILS = BLUE_E
GRADE_COLOR_1 = COLOR_HEADS = RED_E
GRADE_COLOR_2 = COLOR_TAILS = BLUE_C
COLOR_HEADS_COIN = RED
COLOR_TAILS_COIN = BLUE_E
TALLY_BACKGROUND_WIDTH = 1.0
TALLY_BACKGROUND_COLOR = BLACK
SICKLY_GREEN = "#9BBD37"
SICKLY_GREEN = "#9BBD37"
OUTCOME_COLOR = WHITE
OUTCOME_OPACITY = 0.5

8
active_projects/eop/reusables/upright_coins.py
View file

@ -24,13 +24,13 @@ class UprightCoin(Circle):
class UprightHeads(UprightCoin):
CONFIG = {
"fill_color": COLOR_HEADS,
"fill_color": COLOR_HEADS_COIN,
"symbol": "H",
}
class UprightTails(UprightCoin):
CONFIG = {
"fill_color": COLOR_TAILS,
"fill_color": COLOR_TAILS_COIN,
"symbol": "T",
}
@ -120,13 +120,13 @@ class FlatCoin(UprightCoin):
class FlatHeads(FlatCoin):
CONFIG = {
"fill_color": COLOR_HEADS,
"fill_color": COLOR_HEADS_COIN,
"symbol": "H",
}
class FlatTails(FlatCoin):
CONFIG = {
"fill_color": COLOR_TAILS,
"fill_color": COLOR_TAILS_COIN,
"symbol": "T",
}

9
active_projects/eop/what_does_probability_mean.py
View file

@ -16,6 +16,15 @@ class WhatDoesItReallyMean(TeacherStudentsScene):
student_q.set_color_by_tex("probability", YELLOW)
self.student_says(student_q, target_mode = "sassy")
self.wait()
question_bubble = VGroup(student_q, students[1].bubble)
scaled_qb = question_bubble.copy()
scaled_qb.scale(0.4).to_corner(UL)
self.play(Transform(question_bubble, scaled_qb))
self.wait()
self.teacher_says("Don't worry -- philosophy can come later!")
self.wait()