增长

通过从点生长的方式将mobjects引入场景的动画。

示例：增长

from manim import *

class Growing(Scene):
    def construct(self):
        square = Square()
        circle = Circle()
        triangle = Triangle()
        arrow = Arrow(LEFT, RIGHT)
        star = Star()

        VGroup(square, circle, triangle).set_x(0).arrange(buff=1.5).set_y(2)
        VGroup(arrow, star).move_to(DOWN).set_x(0).arrange(buff=1.5).set_y(-2)

        self.play(GrowFromPoint(square, ORIGIN))
        self.play(GrowFromCenter(circle))
        self.play(GrowFromEdge(triangle, DOWN))
        self.play(GrowArrow(arrow))
        self.play(SpinInFromNothing(star))

class Growing(Scene):
    def construct(self):
        square = Square()
        circle = Circle()
        triangle = Triangle()
        arrow = Arrow(LEFT, RIGHT)
        star = Star()

        VGroup(square, circle, triangle).set_x(0).arrange(buff=1.5).set_y(2)
        VGroup(arrow, star).move_to(DOWN).set_x(0).arrange(buff=1.5).set_y(-2)

        self.play(GrowFromPoint(square, ORIGIN))
        self.play(GrowFromCenter(circle))
        self.play(GrowFromEdge(triangle, DOWN))
        self.play(GrowArrow(arrow))
        self.play(SpinInFromNothing(star))

类

GrowArrow	通过从起点向尖端生长来引入一个Arrow。
GrowFromCenter	通过从其中心生长来介绍一个Mobject。
GrowFromEdge	通过从其边界框的一个边缘生长来引入一个Mobject。
GrowFromPoint	通过从一个点生长来介绍一个Mobject。
SpinInFromNothing	介绍一个Mobject从中心旋转并增长。