| class smileyeqn(Scene): | |
| def construct(self): | |
| smiley = ImageMobject("bilder/slightly-smiling-face_1f642.png") | |
| tex_templ = TexTemplate() | |
| tex_templ.add_to_preamble(r"\DeclareMathOperator{\sinc}{sinc}") | |
| eqn = MathTex(r"\sinc(x) = \frac{\sin(x)}{x}", tex_template=tex_templ).to_edge(UP) | |
| self.add(eqn) | |
| eqn2 = eqn.copy().next_to(eqn,DOWN) | |
| smiley.scale_to_fit_width(eqn2[0][5].width*1.5) | |
| smileys = Group( | |
| *[smiley.copy().shift(eqn2[0][i].get_center()-smiley.get_center()) | |
| for i in [5, 12, 15]] | |
| ) | |
| self.add(eqn2,smileys) | |
| tex_templ.add_to_preamble(r"\usepackage{marvosym}") | |
| eqn3 = MathTex(r"\sinc(\text{\Smiley{}}) = \frac{\sin(\text{\Smiley{}})}{\text{\Smiley{}}}", tex_template=tex_templ) | |
| eqn3.next_to(eqn2,DOWN) | |
| self.add(eqn3) | |
| tex_templ = TexTemplate( | |
| tex_compiler="xelatex", | |
| output_format=".xdv" | |
| ) | |
| tex_templ.add_to_preamble(r"\DeclareMathOperator{\sinc}{sinc}") | |
| tex_templ.add_to_preamble(r"\usepackage{twemojis}") | |
| eqn4 = MathTex(r"\sinc(\twemoji{smile}) = \frac{\sin(\twemoji{smile})}{\twemoji{smile}}", tex_template=tex_templ) | |
| eqn4.next_to(eqn3,DOWN) | |
| eqn4[0][11].set_stroke(width=2) | |
| # self.add(eqn4,index_labels(eqn4[0]).set_color(RED)) | |
| self.add(eqn4) |
after a discussion on Reddit https://www.reddit.com/r/manim/comments/1pztj9u/emoji_in_mathtex/ and https://tex.stackexchange.com/questions/3695/smileys-in-latex
Using the bitmap smiley from https://emojipedia.org/huawei/harmony-os-5.0/slightly-smiling-face
