manimextra 1.12.2

A library that extends the capabilities of Manim

ManimExtra - Addition to the standard set function in ManimCE

Table of Contents:

• What is it
• Installation
• Examples
• Documentation

What is it?

ManimExtra provides an advanced feature set for ManimCE. The library makes it easy to work with geometry by adding many classic designs, such as a bisector or an inscribed circle. There are also many objects that'll simplify the work with algebra by adding systems of equations and a trigonometric circle.

Installation

Installing the library is straightforward. If there were no problems with the installation of ManimCE, then there'll be no problems here. On Windows, you need to write the command

pip install manimextra

And on Linux/MacOS

pip3 install manimextra

Examples

Below are some complex usage examples combining several objects from ManimExtra.

Example 1: Triangle Centers and Circles

from manim import *
from manimextra import *

class TriangleCentersScene(Scene):
    def construct(self):
        A = Dot(3 * LEFT + 2 * DOWN, color=RED)
        B = Dot(2 * LEFT + 3 * UP, color=GREEN)
        C = Dot(3 * RIGHT + 2 * DOWN, color=BLUE)

        sides = VGroup(Line(B, C), Line(A, C), Line(A, B))

        incenter = Incenter(A, B, C).set_color(YELLOW)
        centroid = Centroid(A, B, C).set_color(PURPLE)
        circumcenter = Circumcenter(A, B, C).set_color(ORANGE)

        incircle = Incircle(A, B, C, color=YELLOW, stroke_opacity=0.5)
        circumcircle = Circumcircle(A, B, C, color=ORANGE, stroke_opacity=0.5)

        self.add(A, B, C, sides)
        self.play(FadeIn(incenter), FadeIn(incircle))
        self.play(FadeIn(centroid))
        self.play(FadeIn(circumcenter), FadeIn(circumcircle))
        self.wait()

Example 2: System of Equations Animation

from manim import *
from manimextra import *

class SystemOfEquationsExample(Scene):
    def construct(self):
        system1 = SystemOfEquations(
            MathTex("x + y = 2"),
            MathTex("x - y = 0")
        )
        system2 = SystemOfEquations(
            MathTex("x = 1"),
            MathTex("y = 1")
        )
        self.play(FadeIn(system1))
        self.wait()
        self.play(TransformSystem(system1, system2))
        self.wait()

Example 3: Pie Chart and Unit Circle

from manim import *
from manimextra import *

class PieAndCircleScene(Scene):
    def construct(self):
        pie = PieChart(
            data={"A": 10, "B": 20, "C": 30},
            label_buff=0.7,
            inner_radius=1,
            outer_radius=2
        ).to_edge(LEFT)
        circle = UnitCircle().to_edge(RIGHT)
        circle.add_point(PI / 2, r"\dfrac{\pi}{2}")
        circle.add_point(PI, r"\pi")
        self.play(FadeIn(pie), FadeIn(circle))
        self.wait()

Documentation

Full documentation with API reference and more examples is available at:

• ManimExtra Documentation