Fading

声明

这一页翻译自elteoremadebeethoven的 manim_3feb_docs

部分为鹤翔万里补充

注意

旧版的各种 FadeInFrom 和 FadeOutFrom 等方法已经全部整合在 FadeIn 和 FadeOut 中，以参数的形式给出，使得类的使用更加简洁

FadeOut

class manimlib.animation.fading.FadeOut(mobject, shift=array([0.0, 0.0, 0.0]), scale=1, **kwargs)

淡出

• scale : 缩放倍数

• shift : 移动向量

FadeOutExample

class FadeOutExample(Scene):
    def construct(self):
        mobjects = VGroup(
                Circle(),
                Circle(fill_opacity=1),
                Text("Text").scale(2)
            )
        mobjects.scale(1.5)
        mobjects.arrange_submobjects(RIGHT,buff=2)

        self.add(mobjects)
        self.wait(0.3)

        self.play(
            *[FadeOut(mob) for mob in mobjects]
        )

        self.wait()

FadeIn

class manimlib.animation.fading.FadeIn(mobject, shift=array([0.0, 0.0, 0.0]), scale=1, **kwargs)

淡入

• scale : 缩放倍数

• shift : 移动向量

FadeInExample

class FadeInExample(Scene):
    def construct(self):
        mobjects = VGroup(
                Circle(),
                Circle(fill_opacity=1),
                TexText("Text").scale(2)
            )
        mobjects.scale(1.5)
        mobjects.arrange_submobjects(RIGHT,buff=2)

        self.play(
            *[FadeIn(mob) for mob in mobjects]
        )

        self.wait()

FadeInFromExample

class FadeInFromExample(Scene):
    def construct(self):
        mobjects = VGroup(
                Circle(),
                Circle(fill_opacity=1),
                TexText("Text").scale(2)
            )
        mobjects.scale(1.5)
        mobjects.arrange_submobjects(RIGHT,buff=2)

        directions=[UP,LEFT,DOWN,RIGHT]

        for direction in directions:
            self.play(
                *[FadeIn(mob,shift=direction) for mob in mobjects]
            )

        self.wait()

FadeOutAndShiftExample

class FadeOutAndShiftExample(Scene):
    def construct(self):
        mobjects = VGroup(
                Circle(),
                Circle(fill_opacity=1),
                TexText("Text").scale(2)
            )
        mobjects.scale(1.5)
        mobjects.arrange_submobjects(RIGHT,buff=2)

        directions=[UP,LEFT,DOWN,RIGHT]

        self.add(mobjects)
        self.wait(0.3)

        for direction in directions:
            self.play(
                *[FadeOut(mob,shift=direction) for mob in mobjects]
            )

        self.wait()

FadeInFromLargeExample

class FadeInFromLargeExample(Scene):
    def construct(self):
        mobjects = VGroup(
                Circle(),
                Circle(fill_opacity=1),
                TexText("Text").scale(2)
            )
        mobjects.scale(1.5)
        mobjects.arrange_submobjects(RIGHT,buff=2)

        scale_factors=[0.3,0.8,1,1.3,1.8]

        for scale_factor in scale_factors:
            t_scale_factor = TexText(f"\\tt scale\\_factor = {scale_factor}")
            t_scale_factor.to_edge(UP)

            self.add(t_scale_factor)

            self.play(
                *[FadeIn(mob,scale=scale_factor) for mob in mobjects]
            )

            self.remove(t_scale_factor)

        self.wait(0.3)

FadeInFromPoint

class manimlib.animation.fading.FadeInFromPoint(mobject, point, **kwargs)

从传入的一个坐标点淡入

FadeInFromPointExample

class FadeInFromPointExample(Scene):
    def construct(self):
        mobjects = VGroup(
            Circle(),
            Circle(fill_opacity=1),
            TexText("Text").scale(2)
        )
        mobjects.scale(1.5)
        mobjects.arrange_submobjects(RIGHT,buff=2)

        self.wait()
        self.play(
            *[FadeInFromPoint(mob, UP*3) for mob in mobjects]
        )
        self.wait()

FadeOutToPoint

class manimlib.animation.fading.FadeOutToPoint(mobject, point, **kwargs)

淡出到指定的坐标点

FadeTransform

class manimlib.animation.fading.FadeTransform(mobject, target_mobject, **kwargs)

渐变

get_all_mobjects()

Ordering must match the ording of arguments to interpolate_submobject

FadeTransformPieces

class manimlib.animation.fading.FadeTransformPieces(mobject, target_mobject, **kwargs)

子物件分别渐变为目标

VFadeIn

class manimlib.animation.fading.VFadeIn(mobject, **kwargs)

VFadeIn and VFadeOut only work for VMobjects,

VFadeOut

class manimlib.animation.fading.VFadeOut(mobject, **kwargs)

VFadeInThenOut

class manimlib.animation.fading.VFadeInThenOut(mobject, **kwargs)

淡入后淡出

Fade和VFade的区别：

FadeIn 的边从细变粗，从暗变亮。 VFadeIn 的边始终是正常粗细，从暗变亮。

FadeOut 和 VFadeOut 无区别