growing (增长)

通过从点增长来将Mobject对象引入场景的动画。

Example: Growing (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 (增长箭头)	通过从起点向终点增长来引入一个Arrow (箭头)对象。
GrowFromCenter (从中心增长)	通过从中心增长来引入一个Mobject (Mobject对象)。
GrowFromEdge (从边缘增长)	通过从其包围盒的边缘之一增长来引入一个Mobject (Mobject对象)。
GrowFromPoint (从点增长)	通过从一个点增长来引入一个Mobject (Mobject对象)。
SpinInFromNothing (从无中旋转进入)	通过旋转并从中心增长来引入一个Mobject (Mobject对象)。