mirror of
https://github.com/3b1b/manim.git
synced 2025-08-02 02:35:22 +08:00
Basically the end of wcat
This commit is contained in:
Grant Sanderson
271
wcat.py
271
wcat.py
@ -95,7 +95,7 @@ class ClosedLoopScene(Scene):
|
||||
self.add(self.dots)
|
||||
|
||||
def add_rect_dots(self, square = False):
|
||||
self.add_dots(*self.get_rect_vertex_dots())
|
||||
self.add_dots(*self.get_rect_vertex_dots(square = square))
|
||||
|
||||
def add_dots_at_alphas(self, *alphas):
|
||||
self.add_dots(*[
|
||||
@ -267,20 +267,29 @@ class WhenIWasAKid(TeacherStudentsScene):
|
||||
speaker = self.get_speaker()
|
||||
|
||||
self.prepare_everyone(children, speaker)
|
||||
self.transition_from_previous_scene(children, speaker)
|
||||
self.state_excitement(children, speaker)
|
||||
self.students = children
|
||||
self.teacher = speaker
|
||||
self.run_class()
|
||||
self.grow_up()
|
||||
|
||||
def transition_from_previous_scene(self, children, speaker):
|
||||
self.play(self.get_teacher().change_mode, "hooray", run_time = 0)
|
||||
def state_excitement(self, children, speaker):
|
||||
self.teacher_says(
|
||||
"""
|
||||
Here's why
|
||||
I'm excited!
|
||||
""",
|
||||
pi_creature_target_mode = "hooray"
|
||||
)
|
||||
self.change_student_modes(*["happy"]*3)
|
||||
self.dither()
|
||||
|
||||
speaker.look_at(children)
|
||||
me = children[-1]
|
||||
self.play(
|
||||
FadeOut(self.get_students()),
|
||||
FadeOut(self.get_teacher().bubble),
|
||||
FadeOut(self.get_teacher().bubble.content),
|
||||
Transform(self.get_teacher(), me)
|
||||
)
|
||||
self.remove(self.get_teacher())
|
||||
@ -293,12 +302,37 @@ class WhenIWasAKid(TeacherStudentsScene):
|
||||
speaker = self.teacher
|
||||
title = TextMobject("Topology")
|
||||
title.to_edge(UP)
|
||||
pi1, pi2, pi3, me = children
|
||||
|
||||
self.random_blink()
|
||||
self.play(self.teacher.change_mode, "speaking")
|
||||
self.teacher_says(
|
||||
"""
|
||||
Math! Excitement!
|
||||
You are the future!
|
||||
""",
|
||||
pi_creature_target_mode = "hooray"
|
||||
)
|
||||
self.play(
|
||||
pi1.look_at, pi2.eyes,
|
||||
pi1.change_mode, "erm",
|
||||
pi2.look_at, pi1.eyes,
|
||||
pi2.change_mode, "surprised",
|
||||
)
|
||||
self.play(
|
||||
pi3.look_at, me.eyes,
|
||||
pi3.change_mode, "sassy",
|
||||
me.look_at, pi3.eyes,
|
||||
)
|
||||
self.random_blink(2)
|
||||
|
||||
self.play(
|
||||
self.teacher.change_mode, "speaking",
|
||||
FadeOut(self.teacher.bubble),
|
||||
FadeOut(self.teacher.bubble.content),
|
||||
)
|
||||
self.play(Write(title))
|
||||
self.random_blink()
|
||||
pi1, pi2, pi3, me = children
|
||||
|
||||
self.play(pi1.change_mode, "raise_right_hand")
|
||||
self.random_blink()
|
||||
self.play(
|
||||
@ -412,7 +446,7 @@ class DefineInscribedSquareProblem(ClosedLoopScene):
|
||||
self.dither()
|
||||
self.play(ShowCreation(
|
||||
self.loop,
|
||||
run_time = 3,
|
||||
run_time = 5,
|
||||
rate_func = None
|
||||
))
|
||||
self.dither()
|
||||
@ -452,6 +486,9 @@ class DefineInscribedSquareProblem(ClosedLoopScene):
|
||||
randy.mouth.set_stroke(width = 0)
|
||||
|
||||
self.transform_loop(circle)
|
||||
self.remove(self.loop)
|
||||
self.loop = circle
|
||||
self.add(self.loop, self.connecting_lines, self.dots)
|
||||
self.dither()
|
||||
odd_eigths = np.linspace(1./8, 7./8, 4)
|
||||
self.move_dots_to_alphas(odd_eigths)
|
||||
@ -472,12 +509,14 @@ class DefineInscribedSquareProblem(ClosedLoopScene):
|
||||
FadeIn(randy),
|
||||
Animation(randy),
|
||||
Blink(randy),
|
||||
Animation(randy),
|
||||
Blink(randy),
|
||||
Animation(randy),
|
||||
Blink(randy, rate_func = smooth)
|
||||
]
|
||||
for anim in randy_anims:
|
||||
self.let_dots_wonder(
|
||||
run_time = 1,
|
||||
run_time = 1.5,
|
||||
random_seed = 0,
|
||||
added_anims = [anim]
|
||||
)
|
||||
@ -782,6 +821,13 @@ class DistinctPairCollisionOnSurface(Scene):
|
||||
def construct(self):
|
||||
pass
|
||||
|
||||
class PairsOfPointsOnLoop(ClosedLoopScene):
|
||||
def construct(self):
|
||||
self.add_dots_at_alphas(0.2, 0.5)
|
||||
self.dots.highlight(MAROON_B)
|
||||
self.add_connecting_lines()
|
||||
self.let_dots_wonder(run_time = 10)
|
||||
|
||||
class PairOfRealsToPlane(Scene):
|
||||
def construct(self):
|
||||
r1, r2 = numbers = -3, 2
|
||||
@ -886,8 +932,12 @@ class DefineOrderedPair(ClosedLoopScene):
|
||||
dot.highlight(color)
|
||||
label = TexMobject(char)
|
||||
label.highlight(color)
|
||||
label.next_to(dot, LEFT, buff = SMALL_BUFF)
|
||||
label.next_to(dot, RIGHT, buff = SMALL_BUFF)
|
||||
dot.label = label
|
||||
self.dots[1].label.shift(0.3*UP)
|
||||
first = TextMobject("First")
|
||||
first.next_to(self.dots[0], UP+2*LEFT, LARGE_BUFF)
|
||||
arrow = Arrow(first.get_bottom(), self.dots[0], color = GREEN)
|
||||
|
||||
self.dither()
|
||||
self.play(*[
|
||||
@ -898,23 +948,14 @@ class DefineOrderedPair(ClosedLoopScene):
|
||||
self.add(*[d.label for d in dots])
|
||||
self.dither()
|
||||
self.play(
|
||||
dots[0].move_to, dots[1],
|
||||
dots[1].move_to, dots[0],
|
||||
*[
|
||||
MaintainPositionRelativeTo(dot.label, dot)
|
||||
for dot in dots
|
||||
],
|
||||
path_arc = np.pi/2
|
||||
Write(first),
|
||||
ShowCreation(arrow)
|
||||
)
|
||||
self.play(*[
|
||||
Transform(dot.label.copy(), label)
|
||||
for dot, label in zip(dots, labels_end)
|
||||
])
|
||||
self.dither()
|
||||
|
||||
class DefineUnorderedPair(ClosedLoopScene):
|
||||
def construct(self):
|
||||
title = TextMobject("Ordered pairs")
|
||||
title = TextMobject("Unordered pairs")
|
||||
title.to_edge(UP)
|
||||
subtitle = TexMobject(
|
||||
"\\{a,b\\}",
|
||||
@ -951,6 +992,14 @@ class DefineUnorderedPair(ClosedLoopScene):
|
||||
)
|
||||
self.dither()
|
||||
|
||||
class BeginWithOrdered(TeacherStudentsScene):
|
||||
def construct(self):
|
||||
self.teacher_says("""
|
||||
One must know order
|
||||
before he can ignore it.
|
||||
""")
|
||||
self.random_blink(3)
|
||||
|
||||
class DeformToInterval(ClosedLoopScene):
|
||||
def construct(self):
|
||||
interval = UnitInterval(color = WHITE)
|
||||
@ -1277,9 +1326,11 @@ class WrapUpToTorus(Scene):
|
||||
|
||||
class TorusPlaneAnalogy(ClosedLoopScene):
|
||||
def construct(self):
|
||||
top_arrow = Arrow(LEFT, RIGHT)
|
||||
top_arrow = DoubleArrow(LEFT, RIGHT)
|
||||
top_arrow.to_edge(UP, buff = 2*LARGE_BUFF)
|
||||
low_arrow = Arrow(LEFT, RIGHT).shift(2*DOWN)
|
||||
single_pointed_top_arrow = Arrow(LEFT, RIGHT)
|
||||
single_pointed_top_arrow.to_edge(UP, buff = 2*LARGE_BUFF)
|
||||
low_arrow = DoubleArrow(LEFT, RIGHT).shift(2*DOWN)
|
||||
self.loop.scale(0.5)
|
||||
self.loop.next_to(top_arrow, RIGHT)
|
||||
self.loop.shift_onto_screen()
|
||||
@ -1296,6 +1347,8 @@ class TorusPlaneAnalogy(ClosedLoopScene):
|
||||
Dot(number_line.number_to_point(-2), color = RED),
|
||||
)
|
||||
|
||||
self.dither()
|
||||
self.play(ShowCreation(single_pointed_top_arrow))
|
||||
self.dither()
|
||||
self.play(ShowCreation(top_arrow))
|
||||
self.dither()
|
||||
@ -1304,6 +1357,24 @@ class TorusPlaneAnalogy(ClosedLoopScene):
|
||||
self.play(ShowCreation(number_line))
|
||||
self.dither()
|
||||
|
||||
class WigglingPairOfPoints(ClosedLoopScene):
|
||||
def construct(self):
|
||||
alpha_pairs = [
|
||||
(0.4, 0.6),
|
||||
(0.42, 0.62),
|
||||
]
|
||||
self.add_dots_at_alphas(*alpha_pairs[-1])
|
||||
self.add_connecting_lines()
|
||||
self.dots.gradient_highlight(GREEN, RED)
|
||||
self.connecting_lines.highlight(YELLOW)
|
||||
for x, pair in zip(range(20), it.cycle(alpha_pairs)):
|
||||
self.move_dots_to_alphas(pair, run_time = 0.3)
|
||||
|
||||
|
||||
class WigglingTorusPoint(Scene):
|
||||
def construct(self):
|
||||
pass
|
||||
|
||||
class WhatAboutUnordered(TeacherStudentsScene):
|
||||
def construct(self):
|
||||
self.student_says(
|
||||
@ -1362,6 +1433,23 @@ class TrivialPairCollision(ClosedLoopScene):
|
||||
self.play(Blink(randy))
|
||||
self.dither()
|
||||
|
||||
class NotHelpful(Scene):
|
||||
def construct(self):
|
||||
morty = Mortimer()
|
||||
morty.next_to(ORIGIN, DOWN)
|
||||
bubble = morty.get_bubble("speech", width = 4, height = 3)
|
||||
bubble.write("Not helpful!")
|
||||
|
||||
self.add(morty)
|
||||
self.play(
|
||||
FadeIn(bubble),
|
||||
FadeIn(bubble.content),
|
||||
morty.change_mode, "angry",
|
||||
morty.look, OUT
|
||||
)
|
||||
self.play(Blink(morty))
|
||||
self.dither()
|
||||
|
||||
class FoldUnitSquare(EdgesOfSquare):
|
||||
def construct(self):
|
||||
self.add_triangles()
|
||||
@ -1727,6 +1815,49 @@ class DrawLeftrightArrow(DrawRightArrow):
|
||||
"tex" : "\\Leftrightarrow"
|
||||
}
|
||||
|
||||
class MobiusToPairToSurface(ClosedLoopScene):
|
||||
def construct(self):
|
||||
self.loop.scale(0.5)
|
||||
self.loop.next_to(ORIGIN, RIGHT)
|
||||
self.loop.to_edge(UP)
|
||||
self.add_dots_at_alphas(0.4, 0.6)
|
||||
self.dots.highlight(MAROON_B)
|
||||
self.add_connecting_lines()
|
||||
strip_dot = Dot().next_to(self.loop, LEFT, buff = 2*LARGE_BUFF)
|
||||
surface_dot = Dot().next_to(self.loop, DOWN, buff = 2*LARGE_BUFF)
|
||||
|
||||
top_arrow = Arrow(strip_dot, self.loop)
|
||||
right_arrow = Arrow(self.loop, surface_dot)
|
||||
diag_arrow = Arrow(strip_dot, surface_dot)
|
||||
|
||||
randy = self.randy = Randolph(mode = "pondering")
|
||||
randy.next_to(ORIGIN, DOWN+LEFT)
|
||||
|
||||
self.look_at(strip_dot)
|
||||
self.play(
|
||||
ShowCreation(top_arrow),
|
||||
randy.look_at, self.loop
|
||||
)
|
||||
self.dither()
|
||||
self.look_at(strip_dot, surface_dot)
|
||||
self.play(ShowCreation(diag_arrow))
|
||||
self.play(Blink(randy))
|
||||
self.look_at(strip_dot, self.loop)
|
||||
self.dither()
|
||||
self.play(
|
||||
ShowCreation(right_arrow),
|
||||
randy.look_at, surface_dot
|
||||
)
|
||||
self.play(Blink(randy))
|
||||
self.play(randy.change_mode, "happy")
|
||||
self.play(Blink(randy))
|
||||
self.dither()
|
||||
|
||||
|
||||
def look_at(self, *things):
|
||||
for thing in things:
|
||||
self.play(self.randy.look_at, thing)
|
||||
|
||||
class MapMobiusStripOntoSurface(Scene):
|
||||
def construct(self):
|
||||
pass
|
||||
@ -1812,6 +1943,96 @@ class OneMoreAnimation(TeacherStudentsScene):
|
||||
self.change_student_modes(*["happy"]*3)
|
||||
self.random_blink()
|
||||
|
||||
class PatreonThanks(Scene):
|
||||
CONFIG = {
|
||||
"specific_patrons" : [
|
||||
"Loo Yu Jun",
|
||||
"Tom",
|
||||
"Othman Alikhan",
|
||||
"Markus Persson",
|
||||
"Joseph John Cox",
|
||||
"Achille Brighton",
|
||||
"Kirk Werklund",
|
||||
"Luc Ritchie",
|
||||
"Ripta Pasay",
|
||||
"PatrickJMT ",
|
||||
"Felipe Diniz",
|
||||
]
|
||||
}
|
||||
def construct(self):
|
||||
morty = Mortimer()
|
||||
morty.next_to(ORIGIN, DOWN)
|
||||
|
||||
n_patrons = len(self.specific_patrons)
|
||||
special_thanks = TextMobject("Special thanks to:")
|
||||
special_thanks.highlight(YELLOW)
|
||||
special_thanks.shift(2*UP)
|
||||
|
||||
left_patrons = VGroup(*map(TextMobject,
|
||||
self.specific_patrons[:n_patrons/2]
|
||||
))
|
||||
right_patrons = VGroup(*map(TextMobject,
|
||||
self.specific_patrons[n_patrons/2:]
|
||||
))
|
||||
for patrons, vect in (left_patrons, LEFT), (right_patrons, RIGHT):
|
||||
patrons.arrange_submobjects(DOWN, aligned_edge = LEFT)
|
||||
patrons.next_to(special_thanks, DOWN)
|
||||
patrons.to_edge(vect, buff = LARGE_BUFF)
|
||||
|
||||
self.play(morty.change_mode, "gracious")
|
||||
self.play(Write(special_thanks, run_time = 1))
|
||||
self.play(Write(left_patrons))
|
||||
self.play(Write(right_patrons))
|
||||
self.play(Blink(morty))
|
||||
self.play(morty.look_at, left_patrons)
|
||||
self.dither()
|
||||
self.play(morty.look_at, right_patrons)
|
||||
self.play(Blink(morty))
|
||||
|
||||
|
||||
class CreditTWo(Scene):
|
||||
def construct(self):
|
||||
morty = Mortimer()
|
||||
morty.next_to(ORIGIN, DOWN)
|
||||
morty.to_edge(RIGHT)
|
||||
|
||||
brother = PiCreature(color = GOLD_E)
|
||||
brother.next_to(morty, LEFT)
|
||||
brother.look_at(morty.eyes)
|
||||
|
||||
headphones = Headphones(height = 1)
|
||||
headphones.move_to(morty.eyes, aligned_edge = DOWN)
|
||||
headphones.shift(0.1*DOWN)
|
||||
|
||||
url = TextMobject("www.audible.com/3b1b")
|
||||
url.to_corner(UP+RIGHT, buff = LARGE_BUFF)
|
||||
|
||||
self.add(morty)
|
||||
self.play(Blink(morty))
|
||||
self.play(
|
||||
FadeIn(headphones),
|
||||
Write(url),
|
||||
Animation(morty)
|
||||
)
|
||||
self.play(morty.change_mode, "happy")
|
||||
self.dither()
|
||||
self.play(Blink(morty))
|
||||
self.dither()
|
||||
self.play(
|
||||
FadeIn(brother),
|
||||
morty.look_at, brother.eyes
|
||||
)
|
||||
self.play(brother.change_mode, "surprised")
|
||||
self.play(Blink(brother))
|
||||
self.dither()
|
||||
self.play(
|
||||
morty.look, LEFT,
|
||||
brother.change_mode, "happy",
|
||||
brother.look, LEFT
|
||||
)
|
||||
self.play(Blink(morty))
|
||||
self.dither()
|
||||
|
||||
|
||||
class ShiftingLoopPairSurface(Scene):
|
||||
def construct(self):
|
||||
@ -1826,7 +2047,3 @@ class ShiftingLoopPairSurface(Scene):
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
Reference in New Issue
Block a user