CODEWITHSUNDEEP
pythonmanim
Luis Roberto Carlos
Luis Roberto Carlos

Reputation: 65

Draw lines with manim library?

I started learning manim and I hope you could help me understand how this code works

class Line_1(Scene):
    def construct(self):
        path = Line(LEFT*5,RIGHT*5,stroke_opatity=0.5)
        path.points[1:3] += UP*2
        self.add(path)

When I run the code I get this: enter image description here

However I do not know how to interpret this "path.points[1:3] += UP*2" What does it mean .points[1:3]?

Thanks in advance

Upvotes: 2

Views: 2980

Answers (1)

TheoremOfBeethoven
TheoremOfBeethoven

Reputation: 1969

All VMobjects (Lines, Circles, etc) are Bezier curves, and all Bezier curves have control points, those control points are in the .points attribute, the lines have 4 control points, and what that code does is to move the intermediate control points (I do not move the ends).

Upvotes: 2

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