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- from __future__ import annotations
- from manimlib.animation.animation import Animation
- from manimlib.constants import ORIGIN, OUT
- from manimlib.constants import PI, TAU
- from manimlib.utils.rate_functions import linear
- from manimlib.utils.rate_functions import smooth
- from typing import TYPE_CHECKING
- if TYPE_CHECKING:
- import numpy as np
- from typing import Callable
- from manimlib.mobject.mobject import Mobject
- class Rotating(Animation):
- def __init__(
- self,
- mobject: Mobject,
- angle: float = TAU,
- axis: np.ndarray = OUT,
- about_point: np.ndarray | None = None,
- about_edge: np.ndarray | None = None,
- run_time: float = 5.0,
- rate_func: Callable[[float], float] = linear,
- suspend_mobject_updating: bool = False,
- **kwargs
- ):
- self.angle = angle
- self.axis = axis
- self.about_point = about_point
- self.about_edge = about_edge
- super().__init__(
- mobject,
- run_time=run_time,
- rate_func=rate_func,
- suspend_mobject_updating=suspend_mobject_updating,
- **kwargs
- )
- def interpolate_mobject(self, alpha: float) -> None:
- pairs = zip(
- self.mobject.family_members_with_points(),
- self.starting_mobject.family_members_with_points(),
- )
- for sm1, sm2 in pairs:
- for key in sm1.pointlike_data_keys:
- sm1.data[key][:] = sm2.data[key]
- self.mobject.rotate(
- self.rate_func(self.time_spanned_alpha(alpha)) * self.angle,
- axis=self.axis,
- about_point=self.about_point,
- about_edge=self.about_edge,
- )
- class Rotate(Rotating):
- def __init__(
- self,
- mobject: Mobject,
- angle: float = PI,
- axis: np.ndarray = OUT,
- run_time: float = 1,
- rate_func: Callable[[float], float] = smooth,
- about_edge: np.ndarray = ORIGIN,
- **kwargs
- ):
- super().__init__(
- mobject, angle, axis,
- run_time=run_time,
- rate_func=rate_func,
- about_edge=about_edge,
- **kwargs
- )
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