Class FadeIn

manim/animation/fading.py:98–143

r"""Fade in :class:`~.Mobject` s. Parameters ---------- mobjects The mobjects to be faded in. shift The vector by which the mobject shifts while being faded in. target_position The position from which the mobject starts while being faded in. In case

class FadeIn(_Fade):
    r"""Fade in :class:`~.Mobject` s.

    Parameters
    ----------
    mobjects
        The mobjects to be faded in.
    shift
        The vector by which the mobject shifts while being faded in.
    target_position
        The position from which the mobject starts while being faded in. In case
        another mobject is given as target position, its center is used.
    scale
        The factor by which the mobject is scaled initially before being rescaling to
        its original size while being faded in.

    Examples
    --------

    .. manim :: FadeInExample

        class FadeInExample(Scene):
            def construct(self):
                dot = Dot(UP * 2 + LEFT)
                self.add(dot)
                tex = Tex(
                    "FadeIn with ", "shift ", r" or target\_position", " and scale"
                ).scale(1)
                animations = [
                    FadeIn(tex[0]),
                    FadeIn(tex[1], shift=DOWN),
                    FadeIn(tex[2], target_position=dot),
                    FadeIn(tex[3], scale=1.5),
                ]
                self.play(AnimationGroup(*animations, lag_ratio=0.5))

    """

    def __init__(self, *mobjects: Mobject, **kwargs: Any) -> None:
        super().__init__(*mobjects, introducer=True, **kwargs)

    def create_target(self) -> Mobject:
        return self.mobject  # type: ignore[return-value]

    def create_starting_mobject(self) -> Mobject:
        return self._create_faded_mobject(fadeIn=True)


class FadeOut(_Fade):