Manim 动画

# Manim 中的动画 动画是随时间应用于数学对象 (mobjects) 的变换。Manim 提供了一套丰富的内置动画，用于创建流畅、专业的过渡效果。 ## 基本动画模式 python from manim import * class BasicAnimation(Scene): def construct(self): circle = Circle() # 播放动画 self.play(Create(circle)) self.wait(1) ## 创建动画 用于引入数学对象的动画： python class CreationAnimations(Scene): def construct(self): square = Square() circle = Circle() text = Text("Hello") # Create (绘制描边) self.play(Create(square)) self.wait(0.5) # Fade in (淡入) self.play(FadeIn(circle)) self.wait(0.5) # Write (用于文本) self.play(Write(text)) self.wait(0.5) # Grow from center (从中心生长) triangle = Triangle() self.play(GrowFromCenter(triangle)) ## 移除动画 用于移除数学对象的动画： python class RemovalAnimations(Scene): def construct(self): shapes = VGroup(*[Circle() for _ in range(4)]) shapes.arrange(RIGHT, buff=0.5) self.add(shapes) # Fade out (淡出) self.play(FadeOut(shapes[0])) # Shrink to center (收缩到中心) self.play(ShrinkToCenter(shapes[1])) # Uncreate (Create 的反向) self.play(Uncreate(shapes[2])) # Unwrite (Write 的反向) text = Text("Bye") self.add(text) self.play(Unwrite(text)) ## 变换动画 将一个数学对象变形为另一个： python class TransformAnimations(Scene): def construct(self): square = Square() circle = Circle() self.play(Create(square)) self.wait(0.5) # Transform (原始对象变为目标对象) self.play(Transform(square, circle)) self.wait(0.5) # ReplacementTransform (替换为新对象) triangle = Triangle() self.play(ReplacementTransform(square, triangle)) ## 移动动画 python class MovementAnimations(Scene): def construct(self): circle = Circle() self.add(circle) # Shift (相对移动) self.play(circle.animate.shift(RIGHT * 2)) # Move to (绝对位置) self.play(circle.animate.move_to(UP * 2)) # Rotate (旋转) self.play(circle.animate.rotate(PI / 2)) # Scale (缩放) self.play(ci