Non-english words in brace label

[sindzicat]

Hello!

I'm learning Manim and has stuck with this example: https://docs.manim.community/en/stable/examples.html#braceannotation

I need to replace "Horizontal distance" to "Горизонтальное смещение". I found, that brace label uses TeX. I know how to produce text on Russian using XeLaTeX:

\documentclass{article}

\usepackage{amsmath,amsthm,amssymb,amsfonts}
\usepackage{color}

\usepackage{polyglossia}
\setmainlanguage{russian}
\setotherlanguage{english}


\usepackage{fontspec}
\usepackage{unicode-math}

\setmainfont{XITS}
\setmathfont{CMU Classical Serif}

\pagestyle{empty}

\begin{document}

Test equation (тестовое уравнение): $\sum_{n=0}^\infty F_{\text{упр.}n}$

\end{document}

But I don't know how to make brace label to use my preamble and XeLaTeX. Is this possible just use simple text in brace preamble (without TeX)?

[MrDiver]

You can use the TexTemplate module for this. Just use one of the predefined templates in the TexTemplateLibrary and modify it to your liking or define your own with TexTemplate
Currently i don't know if you can get xelatex to coorporate with manim because we need dvi files as output. But in general that would be the way to go about it.

[sindzicat]

Sorry for a long silence. I knew about TexTemplate, and my problem was that get_tex() function don't provide a way to use TexTemplate. At least I didn't find a way to use get_tex() with TexTemplate. But I found a workaround. I found that source code of get_tex() function is very simple. It just use put_at_tip() that uses next_to() function.

So unstead of get_tex() function I just used next_to() function with my own TexTemplate():

%%manim -qm -v WARNING BraceAnnotationRu

PREAMBLE = r'''
\usepackage{amsmath,amsthm,amssymb,amsfonts}
\usepackage{color}

\usepackage{polyglossia}
\setmainlanguage{russian}
\setotherlanguage{english}


\usepackage{fontspec}
\usepackage{unicode-math}

\setmainfont{XITS}
\setmathfont{CMU Classical Serif}
'''

class BraceAnnotationRu(Scene):
    def construct(self):
        dot = Dot([-2, -1, 0])

        dot2 = Dot([2, 1, 0])

        line = Line(dot.get_center(), dot2.get_center()).set_color(ORANGE)

        b1 = Brace(line)

        b1text = b1.get_text("Horizontal distance")

        b2 = Brace(line, direction=line.copy().rotate(PI / 2).get_unit_vector())

        tex_tpl = TexTemplate(
            tex_compiler='xelatex',
            output_format='.xdv',
            preamble=PREAMBLE
        )

        tip_2 = MathTex(r'\vec F_\text{абс}', tex_template=tex_tpl)

        self.add(line, dot, dot2, b1, b2, b1text, tip_2.next_to(b2.get_tip(), np.round(b2.get_direction())))