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streched_rectangles.py
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streched_rectangles.py
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import numpy as np
from manim import (
Rectangle,
RIGHT,
LEFT,
Transform,
)
from manim.utils.rate_functions import linear
class StretchRectangleRightObjects:
def __init__(self, width, x_location, y_location, color):
self.width = width
self.color = color
self.x_location = x_location
self.y_location = y_location
self.default_height = 1
self._original_rect = (
Rectangle(
width=0,
height=self.default_height,
color=self.color,
fill_color=self.color,
fill_opacity=1,
)
.to_edge(LEFT)
.shift(np.array((self.x_location, self.y_location, 0)))
)
self._stretched_rect = (
Rectangle(
width=self.original_rect.width + self.width,
height=self.default_height,
color=self.color,
fill_color=self.color,
fill_opacity=1,
)
.to_edge(LEFT)
.shift(np.array((self.x_location, self.y_location, 0)))
)
@property
def original_rect(self) -> Rectangle:
return self._original_rect
@property
def stretched_rect(self) -> Rectangle:
return self._stretched_rect
@property
def stretch(self) -> Transform:
return Transform(self.original_rect, self.stretched_rect)
class NextToStretchRectangleRightObjects:
def __init__(self, width, color, object_to_next_to, direction=RIGHT, buffer=0.25):
self.width = width
self.color = color
self.object_to_next_to = object_to_next_to
self.direction = direction
self.default_height = 0.75
self.buffer = buffer
self._original_rect = Rectangle(
width=0,
height=self.default_height,
color=self.color,
fill_color=self.color,
fill_opacity=1,
).next_to(self.object_to_next_to, self.direction, buff=self.buffer)
self._stretched_rect = Rectangle(
width=self.original_rect.width + self.width,
height=self.default_height,
color=self.color,
fill_color=self.color,
fill_opacity=1,
).next_to(self.object_to_next_to, self.direction, buff=self.buffer)
@property
def original_rect(self) -> Rectangle:
return self._original_rect
@property
def stretched_rect(self) -> Rectangle:
return self._stretched_rect
def stretch(self, ratefunc=linear) -> Transform:
return Transform(self.original_rect, self.stretched_rect, rate_func=ratefunc)