[Fold line to square] How to make a square from a single line. #manim #fold #animate

20220919_line2square.py

# https://discord.com/channels/581738731934056449/1021439985615913051/1021439985615913051

from manim import *

class square_from_line(Scene):
    def construct(self):
        line1 = Line(start=ORIGIN, end=1*RIGHT)
        line2 = line1.copy().shift(1*RIGHT)        
        line3 = line2.copy().shift(1*RIGHT)        
        line4 = line3.copy().shift(1*RIGHT)
        all = VGroup(line1,line2,line3,line4)
        grp2 = VGroup(line2,line3,line4)       
        grp3 = VGroup(line3,line4)
        self.play(Write(all))
        self.wait(2)
        self.play(Rotate(grp2, angle=90*DEGREES, about_point=1*RIGHT))        
        self.play(Rotate(grp3, angle=90*DEGREES, about_point=1*RIGHT+1*UP))
        self.play(Rotate(line4, angle=90*DEGREES, about_point=1*UP))        
        self.wait(2)

readme.md

https://discord.com/channels/581738731934056449/1021439985615913051/1021439985615913051