def construct(self):
digest_config(self, {})
## Usually shouldn't need this...
self.frame_duration = self.CONFIG["frame_duration"]
##
digest_config(self, {})
circle = Circle(density=self.circle_density, color=self.circle_blue)
circle.repeat(self.circle_repeats)
circle.scale(self.radius)
sphere = Sphere(density=self.sphere_density, color=self.sphere_blue)
sphere.scale(self.radius)
sphere.rotate(-np.pi / 7, [1, 0, 0])
sphere.rotate(-np.pi / 7)
iris = Mobject()
iris.interpolate(circle, sphere, self.interpolation_factor)
for mob, color in [(iris, self.sphere_brown),
(circle, self.circle_brown)]:
mob.highlight(color, lambda (x, y, z): x < 0 and y > 0)
mob.highlight(
"black",
lambda point: np.linalg.norm(point) < \
self.inner_radius_ratio*self.radius
)
self.name_mob = TextMobject("3Blue1Brown").center()
self.name_mob.highlight("grey")
self.name_mob.shift(2 * DOWN)
self.play(Transform(circle, iris, run_time=self.run_time))
self.frames = drag_pixels(self.frames)
self.save_image(IMAGE_DIR)
self.logo = MobjectFromPixelArray(self.frames[-1])
self.add(self.name_mob)
self.dither()
def generate_points(self):
complex_power = 0.9
radius = self.initial_width/2
circle = Circle(radius = radius)
circle.scale(1.0/radius)
circle.apply_complex_function(lambda z : z**complex_power)
circle.scale(radius)
boundary_point_as_complex = radius*complex(-1)**complex_power
boundary_points = [
[
boundary_point_as_complex.real,
unit*boundary_point_as_complex.imag,
0
]
for unit in -1, 1
]
tip = radius*(1.5*LEFT+UP)
self.little_line = Line(boundary_points[0], tip)
self.circle = circle
self.add(
circle,
self.little_line,
Line(boundary_points[1], tip)
)
self.highlight("white")
self.rotate(np.pi/2)
self.stretch_to_fit_height(self.initial_height)
def construct(self):
digest_config(self, {})
## Usually shouldn't need this...
self.frame_duration = self.DEFAULT_CONFIG["frame_duration"]
##
digest_config(self, {})
circle = Circle(
density = self.circle_density,
color = self.circle_blue
)
circle.repeat(self.circle_repeats)
circle.scale(self.radius)
sphere = Sphere(
density = self.sphere_density,
color = self.sphere_blue
)
sphere.scale(self.radius)
sphere.rotate(-np.pi / 7, [1, 0, 0])
sphere.rotate(-np.pi / 7)
iris = Mobject()
iris.interpolate(
circle, sphere,
self.interpolation_factor
)
for mob, color in [(iris, self.sphere_brown), (circle, self.circle_brown)]:
mob.highlight(color, lambda (x, y, z) : x < 0 and y > 0)
mob.highlight(
"black",
lambda point: np.linalg.norm(point) < \
self.inner_radius_ratio*self.radius
)
name = TextMobject("3Blue1Brown").center()
name.highlight("grey")
name.shift(2*DOWN)
self.play(Transform(
circle, iris,
run_time = self.run_time
))
self.frames = drag_pixels(self.frames)
self.save_image(IMAGE_DIR)
self.show_frame()
self.add(name)
self.dither()
print "Dragging pixels..."
def generate_points(self):
complex_power = 0.9
radius = self.initial_width / 2
circle = Circle(radius=radius)
circle.scale(1.0 / radius)
circle.apply_complex_function(lambda z: z**complex_power)
circle.scale(radius)
boundary_point_as_complex = radius * complex(-1)**complex_power
boundary_points = [[
boundary_point_as_complex.real,
unit * boundary_point_as_complex.imag, 0
] for unit in -1, 1]
tip = radius * (1.5 * LEFT + UP)
self.little_line = Line(boundary_points[0], tip)
self.circle = circle
self.add(circle, self.little_line, Line(boundary_points[1], tip))
self.highlight("white")
self.rotate(np.pi / 2)
self.stretch_to_fit_height(self.initial_height)
