Adding Pesian/Farsi language for using inside TexText class. by creating a .tex template and an example

example_scenes.py

@@ -670,5 +670,48 @@ def text_updater(old_text):
         # self.wait(60)
         # self.embed()
 
+class WritePersianExample(Scene):
+    """
+        This is the simplest and basic form of implementing Persian/Farsi Language for  manim library.
+
+    User needs to make some changes in
+
+    default_config.yml file like this:
+            tex:
+            executable: "xelatex -no-pdf"
+            template_file: "ftex_template.tex"
+            intermediate_filetype: "xdv"
+            text_to_replace: "[tex_expression]"
+
+        and
+        User need to have "HM XNiloofar" font in his computer or any desired persian font in HM family.
+    """
+
+    def construct(self):
+        rtarrow0 = Tex(r"X^{20} + 123456", font_size=96).to_edge(UP)
+        rtarrow1 = TexText(
+            r"""
+            \lr{Hello World}
+
+            سلام دنیا
+
+            $x^2 + y^2 = z^2$
+
+            """,
+            font_size=96,
+        )
+        self.add(rtarrow0)
+        self.add(rtarrow1)
+
+        source = TexText("سلام علیکم", height=1).to_edge(DOWN)
+        target = TexText("علی سالم است", height=1).to_edge(DOWN)
+
+        self.play(Write(source))
+        self.wait()
+        kw = {"run_time": 3, "path_arc": PI / 2}
+        self.play(TransformMatchingShapes(source, target, **kw))
+        self.wait()
+        self.play(TransformMatchingShapes(target, source, **kw))
+        self.wait()
 
 # See https://github.com/3b1b/videos for many, many more

manimlib/default_config.yml

@@ -17,11 +17,11 @@ directories:
   # specify them elsewhere,
   temporary_storage: ""
 tex:
-  executable: "latex"
-  template_file: "tex_template.tex" 
-  intermediate_filetype: "dvi"
+  executable: "xelatex -no-pdf"
+  template_file: "ftex_template.tex" 
+  intermediate_filetype: "xdv"
   text_to_replace: "[tex_expression]"
-  # For ctex, use the following configuration
+  # For ctex, xepersian use the following configuration
   # executable: "xelatex -no-pdf"
   # template_file: "ctex_template.tex"
   # intermediate_filetype: "xdv"

manimlib/tex_templates/ftex_template.tex

@@ -0,0 +1,28 @@
+\documentclass[preview]{standalone}
+\usepackage{amsmath}
+\usepackage{amssymb}
+\usepackage{ragged2e}
+\usepackage{physics}
+\usepackage{xcolor}
+\usepackage[localise]{xepersian}
+\settextfont{HM XNiloofar}
+
+
+\usepackage{dsfont}
+\usepackage{setspace}
+\usepackage{tipa}
+\usepackage{relsize}
+\usepackage{textcomp}
+\usepackage{mathrsfs}
+\usepackage{calligra}
+\usepackage{wasysym}
+
+\usepackage{microtype}
+\linespread{1}
+
+
+\begin{document}
+
+[tex_expression]
+
+\end{document}