Composition

AnimationGroup

class manimlib.animation.composition.AnimationGroup(*animations: manimlib.animation.animation.Animation, **kwargs)

动画组，可以传入一系列动画，统一播放

build_animations_with_timings() → None

创建三元组列表 (anim, start_time, end_time)

get_all_mobjects() → manimlib.mobject.mobject.Group

Ordering must match the ording of arguments to interpolate_submobject

update_mobjects(dt: float) → None

更新 starting_mobject，以及 Transform 中的 target_mobject 的状态

注意：通常情况下，处在动画进程中的 self.mobject 会停止更新（只处理动画），所以这个方法对它是没有用的

Updates things like starting_mobject, and (for Transforms) target_mobject. Note, since typically (always?) self.mobject will have its updating suspended during the animation, this will do nothing to self.mobject.

AnimationGroupExample

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

        self.wait()
        anims = AnimationGroup(
            *[GrowFromCenter(mob) for mob in mobjects]
        )
        self.play(anims)
        self.wait()

Succession

class manimlib.animation.composition.Succession(*animations: manimlib.animation.animation.Animation, **kwargs)

使子动画逐一播放

update_mobjects(dt: float) → None

更新 starting_mobject，以及 Transform 中的 target_mobject 的状态

注意：通常情况下，处在动画进程中的 self.mobject 会停止更新（只处理动画），所以这个方法对它是没有用的

Updates things like starting_mobject, and (for Transforms) target_mobject. Note, since typically (always?) self.mobject will have its updating suspended during the animation, this will do nothing to self.mobject.

SuccessionExample

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

        self.add(mobjects)
        self.wait()
        anims = Succession(
            *[ApplyMethod(mob.shift, DOWN) for mob in mobjects]
        )
        self.play(anims)
        self.wait()

LaggedStart

class manimlib.animation.composition.LaggedStart(*animations: manimlib.animation.animation.Animation, **kwargs)

可以统一控制 lag_ratio 的动画组

LaggedStartExample

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

        self.add(mobjects)
        self.wait()
        anims = LaggedStart(
            *[ApplyMethod(mob.shift, DOWN) for mob in mobjects]
        )
        self.play(anims)
        self.wait()

LaggedStartMap

class manimlib.animation.composition.LaggedStartMap(AnimationClass: type, mobject: Mobject, arg_creator: Callable[[Mobject], tuple] | None = None, **kwargs)

统一控制 动画类、 mobjects、 lag_ratio 的动画组

LaggedStartMapExample

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

        self.add(mobjects)
        self.wait()
        anims = LaggedStartMap(
            FadeOut, mobjects
        )
        self.play(anims)
        self.wait()