Building Blocks

This document explains the building blocks of fluxion and will give you all the necessary tools to start producing your own videos.

Essentially, fluxion puts at your disposal three different concepts that you can orchestrate together to produce mathematical animations: the mathematical object (or mobject for short), the animation, and the scene.

Mobjects

Mobjects are the basic building blocks for all fluxion animations. Each class that derives from Mobject represents an object that can be displayed on the screen.

Creating and Displaying Mobjects

from fluxion import *

class CreatingMobjects(Scene):
    def construct(self):
        circle = Circle()
        self.add(circle)
        self.wait(1)
        self.remove(circle)
        self.wait(1)

Creating Mobjects

Placing Mobjects

class Shapes(Scene):
    def construct(self):
        circle = Circle()
        square = Square()
        triangle = Triangle()
        
        circle.shift(LEFT)
        square.shift(UP)
        triangle.shift(RIGHT)
        
        self.add(circle, square, triangle)
        self.wait(1)

Positioning Shapes

Animations

At the heart of fluxion is animation. Generally, you can add an animation to your scene by calling the play() method.

class SomeAnimations(Scene):
    def construct(self):
        square = Square()
        
        # Some animations display mobjects
        self.play(FadeIn(square))
        
        # Some move or rotate mobjects around
        self.play(Rotate(square, PI/4))
        
        # Some animations remove mobjects from the screen
        self.play(FadeOut(square))
        
        self.wait(1)

Basic Animations

TIP

Fluxion provides a wide variety of animations. Check out the animation reference for a complete list.

Scenes

The Scene class is the canvas for your animations. It provides methods like play(), add(), remove(), and wait() to control the flow of your animation.

Every Fluxion animation is defined as a Scene subclass with a construct() method that contains the animation logic.

Next Steps

• Learn about Output & Configuration
• Explore the Examples Gallery
• Dive into the Reference Manual