text_mobject

Mobjects used for displaying (non-LaTeX) text.

Note

Just as you can use Tex and MathTex (from the module tex_mobject) to insert LaTeX to your videos, you can use Text to to add normal text.

Important

See the corresponding tutorial Text Without LaTeX, especially for information about fonts.

The simplest way to add text to your animations is to use the Text class. It uses the Pango library to render text. With Pango, you are also able to render non-English alphabets like 你好 or こんにちは or 안녕하세요 or مرحبا بالعالم.

Examples

Example: HelloWorld

from manim import *

class HelloWorld(Scene):
    def construct(self):
        text = Text('Hello world').scale(3)
        self.add(text)

class HelloWorld(Scene):
    def construct(self):
        text = Text('Hello world').scale(3)
        self.add(text)

Example: TextAlignment

from manim import *

class TextAlignment(Scene):
    def construct(self):
        title = Text("K-means clustering and Logistic Regression", color=WHITE)
        title.scale(0.75)
        self.add(title.to_edge(UP))

        t1 = Text("1. Measuring").set_color(WHITE)

        t2 = Text("2. Clustering").set_color(WHITE)

        t3 = Text("3. Regression").set_color(WHITE)

        t4 = Text("4. Prediction").set_color(WHITE)

        x = VGroup(t1, t2, t3, t4).arrange(direction=DOWN, aligned_edge=LEFT).scale(0.7).next_to(ORIGIN,DR)
        x.set_opacity(0.5)
        x.submobjects[1].set_opacity(1)
        self.add(x)

class TextAlignment(Scene):
    def construct(self):
        title = Text("K-means clustering and Logistic Regression", color=WHITE)
        title.scale(0.75)
        self.add(title.to_edge(UP))

        t1 = Text("1. Measuring").set_color(WHITE)

        t2 = Text("2. Clustering").set_color(WHITE)

        t3 = Text("3. Regression").set_color(WHITE)

        t4 = Text("4. Prediction").set_color(WHITE)

        x = VGroup(t1, t2, t3, t4).arrange(direction=DOWN, aligned_edge=LEFT).scale(0.7).next_to(ORIGIN,DR)
        x.set_opacity(0.5)
        x.submobjects[1].set_opacity(1)
        self.add(x)

Classes

MarkupText	Display (non-LaTeX) text rendered using Pango.
Paragraph	Display a paragraph of text.
Text	Display (non-LaTeX) text rendered using Pango.

Functions

register_font(font_file)

Temporarily add a font file to Pango’s search path.

This searches for the font_file at various places. The order it searches it described below.

1. Absolute path.

2. In assets/fonts folder.

3. In font/ folder.

4. In the same directory.

Parameters:

font_file (str | pathlib.Path) – The font file to add.

Examples

Use with register_font(...) to add a font file to search path.

with register_font("path/to/font_file.ttf"):
    a = Text("Hello", font="Custom Font Name")

Raises:

• FileNotFoundError: – If the font doesn’t exists.

• AttributeError: – If this method is used on macOS.

• .. important :: – This method is available for macOS for ManimPango>=v0.2.3. Using this method with previous releases will raise an AttributeError on macOS.

Parameters:

font_file (str | pathlib.Path) –

remove_invisible_chars(mobject)

Function to remove unwanted invisible characters from some mobjects.

Parameters:

mobject (SVGMobject) – Any SVGMobject from which we want to remove unwanted invisible characters.

Returns:

The SVGMobject without unwanted invisible characters.

Return type:

SVGMobject