def __init__(self, **kwargs):
Mobject.__init__(self, **kwargs)
for part_name in self.PART_NAMES:
mob = ImageMobject(
part_name_to_directory(part_name),
should_center = False
)
if part_name not in self.WHITE_PART_NAMES:
mob.highlight(self.color)
setattr(self, part_name, mob)
self.eyes = Mobject(self.left_eye, self.right_eye)
self.legs = Mobject(self.left_leg, self.right_leg)
mouth_center = self.get_mouth_center()
self.mouth.center()
self.smile = self.mouth
self.frown = self.mouth.copy().rotate(np.pi, RIGHT)
self.straight_mouth = TexMobject("-").scale(0.7)
for mouth in self.smile, self.frown, self.straight_mouth:
mouth.sort_points(lambda p : p[0])
mouth.highlight(self.color) ##to blend into background
mouth.shift(mouth_center)
self.digest_mobject_attrs()
self.give_smile()
self.add(self.mouth)
self.scale(PI_CREATURE_SCALE_VAL)
def construct(self):
headphones = ImageMobject("Headphones.png")
headphones.scale(0.1)
headphones.stretch(2, 0)
headphones.shift(1.2*UP+0.05*LEFT)
headphones.highlight(GREY)
randy = Randolph()
self.add(randy, headphones)
self.dither(2)
self.play(ApplyMethod(randy.blink))
self.dither(4)
def __init__(self, **kwargs):
Mobject.__init__(self, **kwargs)
for part_name in self.PART_NAMES:
mob = ImageMobject(part_name_to_directory(part_name),
should_center=False)
if part_name not in self.WHITE_PART_NAMES:
mob.highlight(self.color)
setattr(self, part_name, mob)
self.eyes = Mobject(self.left_eye, self.right_eye)
self.legs = Mobject(self.left_leg, self.right_leg)
mouth_center = self.get_mouth_center()
self.mouth.center()
self.smile = self.mouth
self.frown = self.mouth.copy().rotate(np.pi, RIGHT)
self.straight_mouth = TexMobject("-").scale(0.7)
for mouth in self.smile, self.frown, self.straight_mouth:
mouth.sort_points(lambda p: p[0])
mouth.highlight(self.color) ##to blend into background
mouth.shift(mouth_center)
self.digest_mobject_attrs()
self.give_smile()
self.add(self.mouth)
self.scale(PI_CREATURE_SCALE_VAL)
def construct(self):
clock = Circle(radius=2, color=WHITE)
clock.add(Dot(ORIGIN))
ticks = Mobject(*[
Line(1.8 * vect, 2 * vect, color=GREY)
for vect in compass_directions(12)
])
clock.add(ticks)
hour_hand = Line(ORIGIN, UP)
minute_hand = Line(ORIGIN, 1.5 * UP)
clock.add(hour_hand, minute_hand)
clock.to_corner(UP + RIGHT)
hour_hand.get_center = lambda: clock.get_center()
minute_hand.get_center = lambda: clock.get_center()
solution = ImageMobject("Newton_brachistochrone_solution2",
use_cache=False)
solution.stroke_width = 3
solution.highlight(GREY)
solution.scale_to_fit_width(5)
solution.to_corner(UP + RIGHT)
newton = ImageMobject("Old_Newton", invert=False)
newton.scale(0.8)
phil_trans = TextMobject("Philosophical Transactions")
rect = Rectangle(height=6, width=4.5, color=WHITE)
rect.to_corner(UP + RIGHT)
rect.shift(DOWN)
phil_trans.scale_to_fit_width(0.8 * rect.get_width())
phil_trans.next_to(Point(rect.get_top()), DOWN)
new_solution = solution.copy()
new_solution.scale_to_fit_width(phil_trans.get_width())
new_solution.next_to(phil_trans, DOWN, buff=1)
not_newton = TextMobject("-Totally not by Newton")
not_newton.scale_to_fit_width(2.5)
not_newton.next_to(new_solution, DOWN, aligned_edge=RIGHT)
phil_trans.add(rect)
newton_complaint = TextMobject([
"``I do not love to be", " \\emph{dunned} ",
"and teased by foreigners''"
],
size="\\small")
newton_complaint.to_edge(UP, buff=0.2)
dunned = newton_complaint.split()[1]
dunned.highlight()
dunned_def = TextMobject(
"(old timey term for making \\\\ demands on someone)")
dunned_def.scale(0.7)
dunned_def.next_to(phil_trans, LEFT)
dunned_def.shift(2 * UP)
dunned_arrow = Arrow(dunned_def, dunned)
johann = ImageMobject("Johann_Bernoulli2", invert=False)
johann.scale(0.4)
johann.to_edge(LEFT)
johann.shift(DOWN)
johann_quote = TextMobject("``I recognize the lion by his claw''")
johann_quote.next_to(johann, UP, aligned_edge=LEFT)
self.play(ApplyMethod(newton.to_edge, LEFT))
self.play(ShowCreation(clock))
kwargs = {"axis": OUT, "rate_func": smooth}
self.play(Rotating(hour_hand, radians=-2 * np.pi, **kwargs),
Rotating(minute_hand, radians=-12 * 2 * np.pi, **kwargs),
run_time=5)
self.wait()
self.clear()
self.add(newton)
clock.ingest_submobjects()
self.play(Transform(clock, solution))
self.remove(clock)
self.add(solution)
self.wait()
self.play(FadeIn(phil_trans), Transform(solution, new_solution))
self.wait()
self.play(ShimmerIn(not_newton))
phil_trans.add(solution, not_newton)
self.wait()
self.play(*map(ShimmerIn, newton_complaint.split()))
self.wait()
self.play(ShimmerIn(dunned_def), ShowCreation(dunned_arrow))
self.wait()
self.remove(dunned_def, dunned_arrow)
self.play(FadeOut(newton_complaint))
self.remove(newton_complaint)
self.play(FadeOut(newton), GrowFromCenter(johann))
self.remove(newton)
self.wait()
self.play(ShimmerIn(johann_quote))
self.wait()
def construct(self):
clock = Circle(radius = 2, color = WHITE)
clock.add(Dot(ORIGIN))
ticks = Mobject(*[
Line(1.8*vect, 2*vect, color = GREY)
for vect in compass_directions(12)
])
clock.add(ticks)
hour_hand = Line(ORIGIN, UP)
minute_hand = Line(ORIGIN, 1.5*UP)
clock.add(hour_hand, minute_hand)
clock.to_corner(UP+RIGHT)
hour_hand.get_center = lambda : clock.get_center()
minute_hand.get_center = lambda : clock.get_center()
solution = ImageMobject(
"Newton_brachistochrone_solution2",
use_cache = False
)
solution.stroke_width = 3
solution.highlight(GREY)
solution.scale_to_fit_width(5)
solution.to_corner(UP+RIGHT)
newton = ImageMobject("Old_Newton", invert = False)
newton.scale(0.8)
phil_trans = TextMobject("Philosophical Transactions")
rect = Rectangle(height = 6, width = 4.5, color = WHITE)
rect.to_corner(UP+RIGHT)
rect.shift(DOWN)
phil_trans.scale_to_fit_width(0.8*rect.get_width())
phil_trans.next_to(Point(rect.get_top()), DOWN)
new_solution = solution.copy()
new_solution.scale_to_fit_width(phil_trans.get_width())
new_solution.next_to(phil_trans, DOWN, buff = 1)
not_newton = TextMobject("-Totally not by Newton")
not_newton.scale_to_fit_width(2.5)
not_newton.next_to(new_solution, DOWN, aligned_edge = RIGHT)
phil_trans.add(rect)
newton_complaint = TextMobject([
"``I do not love to be",
" \\emph{dunned} ",
"and teased by foreigners''"
], size = "\\small")
newton_complaint.to_edge(UP, buff = 0.2)
dunned = newton_complaint.split()[1]
dunned.highlight()
dunned_def = TextMobject("(old timey term for making \\\\ demands on someone)")
dunned_def.scale(0.7)
dunned_def.next_to(phil_trans, LEFT)
dunned_def.shift(2*UP)
dunned_arrow = Arrow(dunned_def, dunned)
johann = ImageMobject("Johann_Bernoulli2", invert = False)
johann.scale(0.4)
johann.to_edge(LEFT)
johann.shift(DOWN)
johann_quote = TextMobject("``I recognize the lion by his claw''")
johann_quote.next_to(johann, UP, aligned_edge = LEFT)
self.play(ApplyMethod(newton.to_edge, LEFT))
self.play(ShowCreation(clock))
kwargs = {
"axis" : OUT,
"rate_func" : smooth
}
self.play(
Rotating(hour_hand, radians = -2*np.pi, **kwargs),
Rotating(minute_hand, radians = -12*2*np.pi, **kwargs),
run_time = 5
)
self.dither()
self.clear()
self.add(newton)
clock.ingest_submobjects()
self.play(Transform(clock, solution))
self.remove(clock)
self.add(solution)
self.dither()
self.play(
FadeIn(phil_trans),
Transform(solution, new_solution)
)
self.dither()
self.play(ShimmerIn(not_newton))
phil_trans.add(solution, not_newton)
self.dither()
self.play(*map(ShimmerIn, newton_complaint.split()))
self.dither()
self.play(
ShimmerIn(dunned_def),
ShowCreation(dunned_arrow)
)
self.dither()
self.remove(dunned_def, dunned_arrow)
self.play(FadeOut(newton_complaint))
self.remove(newton_complaint)
self.play(
FadeOut(newton),
GrowFromCenter(johann)
)
self.remove(newton)
self.dither()
self.play(ShimmerIn(johann_quote))
self.dither()
