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675 lines
21 KiB
Python
675 lines
21 KiB
Python
from __future__ import annotations
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import numpy as np
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import itertools as it
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from manimlib.animation.composition import AnimationGroup
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from manimlib.animation.rotation import Rotating
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from manimlib.constants import BLACK
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from manimlib.constants import BLUE_A
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from manimlib.constants import BLUE_B
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from manimlib.constants import BLUE_C
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from manimlib.constants import BLUE_D
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from manimlib.constants import DOWN
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from manimlib.constants import DOWN
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from manimlib.constants import FRAME_WIDTH
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from manimlib.constants import GREEN
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from manimlib.constants import GREEN_SCREEN
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from manimlib.constants import GREEN_E
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from manimlib.constants import GREY
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from manimlib.constants import GREY_A
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from manimlib.constants import GREY_B
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from manimlib.constants import GREY_E
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from manimlib.constants import LEFT
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from manimlib.constants import LEFT
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from manimlib.constants import MED_LARGE_BUFF
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from manimlib.constants import MED_SMALL_BUFF
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from manimlib.constants import ORIGIN
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from manimlib.constants import OUT
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from manimlib.constants import PI
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from manimlib.constants import RED
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from manimlib.constants import RED_E
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from manimlib.constants import RIGHT
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from manimlib.constants import SMALL_BUFF
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from manimlib.constants import SMALL_BUFF
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from manimlib.constants import UP
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from manimlib.constants import UL
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from manimlib.constants import UR
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from manimlib.constants import DL
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from manimlib.constants import DR
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from manimlib.constants import WHITE
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from manimlib.constants import YELLOW
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from manimlib.constants import TAU
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from manimlib.mobject.boolean_ops import Difference
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from manimlib.mobject.geometry import Arc
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from manimlib.mobject.geometry import Circle
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from manimlib.mobject.geometry import Dot
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from manimlib.mobject.geometry import Line
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from manimlib.mobject.geometry import Polygon
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from manimlib.mobject.geometry import Rectangle
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from manimlib.mobject.geometry import Square
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from manimlib.mobject.geometry import AnnularSector
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from manimlib.mobject.mobject import Mobject
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from manimlib.mobject.numbers import Integer
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from manimlib.mobject.svg.svg_mobject import SVGMobject
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from manimlib.mobject.svg.tex_mobject import Tex
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from manimlib.mobject.svg.tex_mobject import TexText
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from manimlib.mobject.svg.special_tex import TexTextFromPresetString
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from manimlib.mobject.three_dimensions import Prismify
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from manimlib.mobject.three_dimensions import VCube
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from manimlib.mobject.types.vectorized_mobject import VGroup
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from manimlib.mobject.types.vectorized_mobject import VMobject
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from manimlib.utils.rate_functions import linear
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from manimlib.utils.space_ops import angle_of_vector
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from manimlib.utils.space_ops import compass_directions
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from manimlib.utils.space_ops import midpoint
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from manimlib.utils.space_ops import rotate_vector
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from typing import TYPE_CHECKING
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if TYPE_CHECKING:
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from typing import Tuple, Sequence, Callable
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from manimlib.typing import ManimColor, Vect3
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class Checkmark(TexTextFromPresetString):
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tex: str = R"\ding{51}"
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default_color: ManimColor = GREEN
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class Exmark(TexTextFromPresetString):
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tex: str = R"\ding{55}"
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default_color: ManimColor = RED
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class Lightbulb(SVGMobject):
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file_name = "lightbulb"
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def __init__(
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self,
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height: float = 1.0,
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color: ManimColor = YELLOW,
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stroke_width: float = 3.0,
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fill_opacity: float = 0.0,
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**kwargs
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):
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super().__init__(
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height=height,
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color=color,
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stroke_width=stroke_width,
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fill_opacity=fill_opacity,
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**kwargs
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)
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self.insert_n_curves(25)
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class Speedometer(VMobject):
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def __init__(
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self,
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arc_angle: float = 4 * PI / 3,
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num_ticks: int = 8,
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tick_length: float = 0.2,
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needle_width: float = 0.1,
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needle_height: float = 0.8,
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needle_color: ManimColor = YELLOW,
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**kwargs,
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):
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super().__init__(**kwargs)
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self.arc_angle = arc_angle
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self.num_ticks = num_ticks
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self.tick_length = tick_length
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self.needle_width = needle_width
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self.needle_height = needle_height
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self.needle_color = needle_color
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start_angle = PI / 2 + arc_angle / 2
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end_angle = PI / 2 - arc_angle / 2
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self.arc = Arc(
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start_angle=start_angle,
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angle=-self.arc_angle
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)
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self.add(self.arc)
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tick_angle_range = np.linspace(start_angle, end_angle, num_ticks)
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for index, angle in enumerate(tick_angle_range):
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vect = rotate_vector(RIGHT, angle)
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tick = Line((1 - tick_length) * vect, vect)
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label = Integer(10 * index)
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label.set_height(tick_length)
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label.shift((1 + tick_length) * vect)
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self.add(tick, label)
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needle = Polygon(
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LEFT, UP, RIGHT,
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stroke_width=0,
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fill_opacity=1,
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fill_color=self.needle_color
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)
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needle.stretch_to_fit_width(needle_width)
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needle.stretch_to_fit_height(needle_height)
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needle.rotate(start_angle - np.pi / 2, about_point=ORIGIN)
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self.add(needle)
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self.needle = needle
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self.center_offset = self.get_center()
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def get_center(self):
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result = VMobject.get_center(self)
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if hasattr(self, "center_offset"):
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result -= self.center_offset
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return result
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def get_needle_tip(self):
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return self.needle.get_anchors()[1]
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def get_needle_angle(self):
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return angle_of_vector(
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self.get_needle_tip() - self.get_center()
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)
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def rotate_needle(self, angle):
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self.needle.rotate(angle, about_point=self.arc.get_arc_center())
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return self
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def move_needle_to_velocity(self, velocity):
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max_velocity = 10 * (self.num_ticks - 1)
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proportion = float(velocity) / max_velocity
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start_angle = np.pi / 2 + self.arc_angle / 2
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target_angle = start_angle - self.arc_angle * proportion
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self.rotate_needle(target_angle - self.get_needle_angle())
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return self
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class Laptop(VGroup):
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def __init__(
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self,
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width: float = 3,
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body_dimensions: Tuple[float, float, float] = (4.0, 3.0, 0.05),
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screen_thickness: float = 0.01,
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keyboard_width_to_body_width: float = 0.9,
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keyboard_height_to_body_height: float = 0.5,
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screen_width_to_screen_plate_width: float = 0.9,
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key_color_kwargs: dict = dict(
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stroke_width=0,
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fill_color=BLACK,
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fill_opacity=1,
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),
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fill_opacity: float = 1.0,
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stroke_width: float = 0.0,
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body_color: ManimColor = GREY_B,
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shaded_body_color: ManimColor = GREY,
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open_angle: float = np.pi / 4,
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**kwargs
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):
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super().__init__(**kwargs)
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body = VCube(side_length=1)
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for dim, scale_factor in enumerate(body_dimensions):
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body.stretch(scale_factor, dim=dim)
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body.set_width(width)
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body.set_fill(shaded_body_color, opacity=1)
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body.sort(lambda p: p[2])
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body[-1].set_fill(body_color)
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screen_plate = body.copy()
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keyboard = VGroup(*[
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VGroup(*[
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Square(**key_color_kwargs)
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for x in range(12 - y % 2)
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]).arrange(RIGHT, buff=SMALL_BUFF)
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for y in range(4)
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]).arrange(DOWN, buff=MED_SMALL_BUFF)
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keyboard.stretch_to_fit_width(
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keyboard_width_to_body_width * body.get_width(),
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)
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keyboard.stretch_to_fit_height(
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keyboard_height_to_body_height * body.get_height(),
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)
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keyboard.next_to(body, OUT, buff=0.1 * SMALL_BUFF)
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keyboard.shift(MED_SMALL_BUFF * UP)
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body.add(keyboard)
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screen_plate.stretch(screen_thickness /
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body_dimensions[2], dim=2)
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screen = Rectangle(
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stroke_width=0,
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fill_color=BLACK,
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fill_opacity=1,
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)
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screen.replace(screen_plate, stretch=True)
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screen.scale(screen_width_to_screen_plate_width)
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screen.next_to(screen_plate, OUT, buff=0.1 * SMALL_BUFF)
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screen_plate.add(screen)
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screen_plate.next_to(body, UP, buff=0)
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screen_plate.rotate(
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open_angle, RIGHT,
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about_point=screen_plate.get_bottom()
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)
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self.screen_plate = screen_plate
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self.screen = screen
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axis = Line(
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body.get_corner(UP + LEFT + OUT),
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body.get_corner(UP + RIGHT + OUT),
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color=BLACK,
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stroke_width=2
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)
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self.axis = axis
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self.add(body, screen_plate, axis)
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class VideoIcon(SVGMobject):
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file_name: str = "video_icon"
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def __init__(
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self,
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width: float = 1.2,
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color=BLUE_A,
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**kwargs
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):
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super().__init__(color=color, **kwargs)
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self.set_width(width)
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class VideoSeries(VGroup):
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def __init__(
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self,
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num_videos: int = 11,
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gradient_colors: Sequence[ManimColor] = [BLUE_B, BLUE_D],
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width: float = FRAME_WIDTH - MED_LARGE_BUFF,
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**kwargs
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):
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super().__init__(
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*(VideoIcon() for x in range(num_videos)),
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**kwargs
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)
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self.arrange(RIGHT)
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self.set_width(width)
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self.set_color_by_gradient(*gradient_colors)
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class Clock(VGroup):
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def __init__(
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self,
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stroke_color: ManimColor = WHITE,
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stroke_width: float = 3.0,
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hour_hand_height: float = 0.3,
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minute_hand_height: float = 0.6,
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tick_length: float = 0.1,
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**kwargs,
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):
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style = dict(stroke_color=stroke_color, stroke_width=stroke_width)
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circle = Circle(**style)
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ticks = []
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for x, point in enumerate(compass_directions(12, UP)):
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length = tick_length
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if x % 3 == 0:
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length *= 2
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ticks.append(Line(point, (1 - length) * point, **style))
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self.hour_hand = Line(ORIGIN, hour_hand_height * UP, **style)
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self.minute_hand = Line(ORIGIN, minute_hand_height * UP, **style)
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super().__init__(
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circle, self.hour_hand, self.minute_hand,
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*ticks
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)
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class ClockPassesTime(AnimationGroup):
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def __init__(
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self,
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clock: Clock,
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run_time: float = 5.0,
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hours_passed: float = 12.0,
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rate_func: Callable[[float], float] = linear,
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**kwargs
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):
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rot_kwargs = dict(
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axis=OUT,
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about_point=clock.get_center()
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)
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hour_radians = -hours_passed * 2 * PI / 12
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super().__init__(
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Rotating(
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clock.hour_hand,
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angle=hour_radians,
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**rot_kwargs
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),
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Rotating(
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clock.minute_hand,
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angle=12 * hour_radians,
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**rot_kwargs
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),
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**kwargs
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)
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class Bubble(SVGMobject):
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file_name: str = "Bubbles_speech.svg"
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def __init__(
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self,
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direction: Vect3 = LEFT,
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center_point: Vect3 = ORIGIN,
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content_scale_factor: float = 0.7,
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height: float = 4.0,
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width: float = 8.0,
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max_height: float | None = None,
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max_width: float | None = None,
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bubble_center_adjustment_factor: float = 0.125,
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fill_color: ManimColor = BLACK,
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fill_opacity: float = 0.8,
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stroke_color: ManimColor = WHITE,
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stroke_width: float = 3.0,
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**kwargs
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):
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self.direction = LEFT # Possibly updated below by self.flip()
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self.bubble_center_adjustment_factor = bubble_center_adjustment_factor
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self.content_scale_factor = content_scale_factor
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super().__init__(
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fill_color=fill_color,
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fill_opacity=fill_opacity,
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stroke_color=stroke_color,
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stroke_width=stroke_width,
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**kwargs
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)
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self.center()
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self.set_height(height, stretch=True)
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self.set_width(width, stretch=True)
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if max_height:
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self.set_max_height(max_height)
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if max_width:
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self.set_max_width(max_width)
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if direction[0] > 0:
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self.flip()
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self.content = VMobject()
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def get_tip(self):
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# TODO, find a better way
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return self.get_corner(DOWN + self.direction) - 0.6 * self.direction
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def get_bubble_center(self):
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factor = self.bubble_center_adjustment_factor
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return self.get_center() + factor * self.get_height() * UP
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def move_tip_to(self, point):
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mover = VGroup(self)
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if self.content is not None:
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mover.add(self.content)
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mover.shift(point - self.get_tip())
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return self
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def flip(self, axis=UP):
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super().flip(axis=axis)
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if abs(axis[1]) > 0:
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self.direction = -np.array(self.direction)
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return self
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def pin_to(self, mobject, auto_flip=False):
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mob_center = mobject.get_center()
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want_to_flip = np.sign(mob_center[0]) != np.sign(self.direction[0])
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if want_to_flip and auto_flip:
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self.flip()
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boundary_point = mobject.get_bounding_box_point(UP - self.direction)
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vector_from_center = 1.0 * (boundary_point - mob_center)
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self.move_tip_to(mob_center + vector_from_center)
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return self
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def position_mobject_inside(self, mobject):
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mobject.set_max_width(self.content_scale_factor * self.get_width())
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mobject.set_max_height(self.content_scale_factor * self.get_height() / 1.5)
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mobject.shift(self.get_bubble_center() - mobject.get_center())
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return mobject
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def add_content(self, mobject):
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self.position_mobject_inside(mobject)
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self.content = mobject
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return self.content
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def write(self, *text):
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self.add_content(TexText(*text))
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return self
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def resize_to_content(self, buff=0.75):
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width = self.content.get_width()
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height = self.content.get_height()
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target_width = width + min(buff, height)
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target_height = 1.35 * (self.content.get_height() + buff)
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tip_point = self.get_tip()
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self.stretch_to_fit_width(target_width, about_point=tip_point)
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self.stretch_to_fit_height(target_height, about_point=tip_point)
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self.position_mobject_inside(self.content)
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def clear(self):
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self.add_content(VMobject())
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return self
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class SpeechBubble(Bubble):
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file_name: str = "Bubbles_speech.svg"
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class DoubleSpeechBubble(Bubble):
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file_name: str = "Bubbles_double_speech.svg"
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class ThoughtBubble(Bubble):
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file_name: str = "Bubbles_thought.svg"
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def __init__(self, **kwargs):
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Bubble.__init__(self, **kwargs)
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self.submobjects.sort(
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key=lambda m: m.get_bottom()[1]
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)
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def make_green_screen(self):
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self.submobjects[-1].set_fill(GREEN_SCREEN, opacity=1)
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return self
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class VectorizedEarth(SVGMobject):
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file_name: str = "earth"
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def __init__(
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self,
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height: float = 2.0,
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**kwargs
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):
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super().__init__(height=height, **kwargs)
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self.insert_n_curves(20)
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circle = Circle(
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stroke_width=3,
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stroke_color=GREEN,
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fill_opacity=1,
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fill_color=BLUE_C,
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)
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circle.replace(self)
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self.add_to_back(circle)
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class Piano(VGroup):
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def __init__(
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self,
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n_white_keys = 52,
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black_pattern = [0, 2, 3, 5, 6],
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white_keys_per_octave = 7,
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white_key_dims = (0.15, 1.0),
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black_key_dims = (0.1, 0.66),
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key_buff = 0.02,
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white_key_color = WHITE,
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black_key_color = GREY_E,
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total_width = 13,
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**kwargs
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):
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self.n_white_keys = n_white_keys
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self.black_pattern = black_pattern
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self.white_keys_per_octave = white_keys_per_octave
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|
self.white_key_dims = white_key_dims
|
|
self.black_key_dims = black_key_dims
|
|
self.key_buff = key_buff
|
|
self.white_key_color = white_key_color
|
|
self.black_key_color = black_key_color
|
|
self.total_width = total_width
|
|
|
|
super().__init__(**kwargs)
|
|
self.add_white_keys()
|
|
self.add_black_keys()
|
|
self.sort_keys()
|
|
self[:-1].reverse_points()
|
|
self.set_width(self.total_width)
|
|
|
|
def add_white_keys(self):
|
|
key = Rectangle(*self.white_key_dims)
|
|
key.set_fill(self.white_key_color, 1)
|
|
key.set_stroke(width=0)
|
|
self.white_keys = key.get_grid(1, self.n_white_keys, buff=self.key_buff)
|
|
self.add(*self.white_keys)
|
|
|
|
def add_black_keys(self):
|
|
key = Rectangle(*self.black_key_dims)
|
|
key.set_fill(self.black_key_color, 1)
|
|
key.set_stroke(width=0)
|
|
|
|
self.black_keys = VGroup()
|
|
for i in range(len(self.white_keys) - 1):
|
|
if i % self.white_keys_per_octave not in self.black_pattern:
|
|
continue
|
|
wk1 = self.white_keys[i]
|
|
wk2 = self.white_keys[i + 1]
|
|
bk = key.copy()
|
|
bk.move_to(midpoint(wk1.get_top(), wk2.get_top()), UP)
|
|
big_bk = bk.copy()
|
|
big_bk.stretch((bk.get_width() + self.key_buff) / bk.get_width(), 0)
|
|
big_bk.stretch((bk.get_height() + self.key_buff) / bk.get_height(), 1)
|
|
big_bk.move_to(bk, UP)
|
|
for wk in wk1, wk2:
|
|
wk.become(Difference(wk, big_bk).match_style(wk))
|
|
self.black_keys.add(bk)
|
|
self.add(*self.black_keys)
|
|
|
|
def sort_keys(self):
|
|
self.sort(lambda p: p[0])
|
|
|
|
|
|
class Piano3D(VGroup):
|
|
def __init__(
|
|
self,
|
|
shading: Tuple[float, float, float] = (1.0, 0.2, 0.2),
|
|
stroke_width: float = 0.25,
|
|
stroke_color: ManimColor = BLACK,
|
|
key_depth: float = 0.1,
|
|
black_key_shift: float = 0.05,
|
|
piano_2d_config: dict = dict(
|
|
white_key_color=GREY_A,
|
|
key_buff=0.001
|
|
),
|
|
**kwargs
|
|
):
|
|
piano_2d = Piano(**piano_2d_config)
|
|
super().__init__(*(
|
|
Prismify(key, key_depth)
|
|
for key in piano_2d
|
|
))
|
|
self.set_stroke(stroke_color, stroke_width)
|
|
self.set_shading(*shading)
|
|
self.apply_depth_test()
|
|
|
|
# Elevate black keys
|
|
for i, key in enumerate(self):
|
|
if piano_2d[i] in piano_2d.black_keys:
|
|
key.shift(black_key_shift * OUT)
|
|
key.set_color(BLACK)
|
|
|
|
|
|
class DieFace(VGroup):
|
|
def __init__(
|
|
self,
|
|
value: int,
|
|
side_length: float = 1.0,
|
|
corner_radius: float = 0.15,
|
|
stroke_color: ManimColor = WHITE,
|
|
stroke_width: float = 2.0,
|
|
fill_color: ManimColor = GREY_E,
|
|
dot_radius: float = 0.08,
|
|
dot_color: ManimColor = WHITE,
|
|
dot_coalesce_factor: float = 0.5
|
|
):
|
|
dot = Dot(radius=dot_radius, fill_color=dot_color)
|
|
square = Square(
|
|
side_length=side_length,
|
|
stroke_color=stroke_color,
|
|
stroke_width=stroke_width,
|
|
fill_color=fill_color,
|
|
fill_opacity=1.0,
|
|
)
|
|
square.round_corners(corner_radius)
|
|
|
|
if not (1 <= value <= 6):
|
|
raise Exception("DieFace only accepts integer inputs between 1 and 6")
|
|
|
|
edge_group = [
|
|
(ORIGIN,),
|
|
(UL, DR),
|
|
(UL, ORIGIN, DR),
|
|
(UL, UR, DL, DR),
|
|
(UL, UR, ORIGIN, DL, DR),
|
|
(UL, UR, LEFT, RIGHT, DL, DR),
|
|
][value - 1]
|
|
|
|
arrangement = VGroup(*(
|
|
dot.copy().move_to(square.get_bounding_box_point(vect))
|
|
for vect in edge_group
|
|
))
|
|
arrangement.space_out_submobjects(dot_coalesce_factor)
|
|
|
|
super().__init__(square, arrangement)
|
|
self.dots = arrangement
|
|
self.value = value
|
|
self.index = value
|
|
|
|
|
|
class Dartboard(VGroup):
|
|
radius = 3
|
|
n_sectors = 20
|
|
|
|
def __init__(self, **kwargs):
|
|
super().__init__(**kwargs)
|
|
n_sectors = self.n_sectors
|
|
angle = TAU / n_sectors
|
|
|
|
segments = VGroup(*[
|
|
VGroup(*[
|
|
AnnularSector(
|
|
inner_radius=in_r,
|
|
outer_radius=out_r,
|
|
start_angle=n * angle,
|
|
angle=angle,
|
|
fill_color=color,
|
|
)
|
|
for n, color in zip(
|
|
range(n_sectors),
|
|
it.cycle(colors)
|
|
)
|
|
])
|
|
for colors, in_r, out_r in [
|
|
([GREY_B, GREY_E], 0, 1),
|
|
([GREEN_E, RED_E], 0.5, 0.55),
|
|
([GREEN_E, RED_E], 0.95, 1),
|
|
]
|
|
])
|
|
segments.rotate(-angle / 2)
|
|
bullseyes = VGroup(*[
|
|
Circle(radius=r)
|
|
for r in [0.07, 0.035]
|
|
])
|
|
bullseyes.set_fill(opacity=1)
|
|
bullseyes.set_stroke(width=0)
|
|
bullseyes[0].set_color(GREEN_E)
|
|
bullseyes[1].set_color(RED_E)
|
|
|
|
self.bullseye = bullseyes[1]
|
|
self.add(*segments, *bullseyes)
|
|
self.scale(self.radius)
|