uwezi’s gists

uwezi / 20260124_benzene.py

Last active January 24, 2026 13:35

[animated chemistry] Using special animations on chemical formulae. #manim #chemistry #transformbyglyphmap #chemfig #animation #tikz

	from MF_Tools import TransformByGlyphMap
	class benzeneAnim(Scene):
	def construct(self):
	mol1 = Tex(
	r"\chemfig{*6(-=-=-=)}",
	tex_template=myChemTemplate
	).set_stroke(width=3)
	mol2 = Tex(
	r"\chemfig{*6(--=-(=O)-=)}",
	tex_template=myChemTemplate

uwezi / 20260124_chemfig.py

Last active January 24, 2026 12:55

[Organic chemistry] Using LaTeX's chemfig macro in Manim. #manim #latex #tikz #chemfig #chemistry

	from manim import *
	from mol2chemfigPy3 import mol2chemfig

	myChemTemplate = TexTemplate(
	tex_compiler="latex",
	output_format='.dvi',
	preamble=r"""
	\usepackage{amsmath}
	\usepackage{amssymb}
	\usepackage{chemfig}

uwezi / 20260121_longdiv.py

Last active January 20, 2026 23:20

[long division] Long division in Manim. #manim #math #animation

	class longdiv(Scene):
	def construct(self):
	# https://www.calculatorsoup.com/calculators/math/longdivision.php
	divisor = 123
	dividend = 764556
	divisor_mobj = VGroup(
	*Tex(f"{divisor}")[0]
	)
	remainder = 0
	divisor_mobj.arrange_in_grid(

uwezi / 20260112_smiley.py

Last active January 12, 2026 13:03

[Smileys in equations] Use smiley characters in LaTeX equations in Manim. #manim #latex #smiley #pdf

	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(

uwezi / 20260110_linear.py

Last active January 10, 2026 18:15

[smooth transition] Smooth transition between two linear functions. #manim #math #line

	# https://math.stackexchange.com/questions/2493537/smooth-transition-between-linear-functions
	class oscdot4(Scene):
	def construct(self):
	def f1(x):
	return 0 + 0.5x2*PI

	def f2(x):
	return f1(3) + 2.5(x-3)2*PI

	x0 = 2

uwezi / 20251214_spherehole.scad

Last active January 10, 2026 12:56

[Import .stl mesh] Import an .stl file as a mesh into Manim. #manim #3D #stl #mesh

uwezi / 20251220_mathtex.py

Last active December 20, 2025 16:13

[big expression] Finding and manipulating parts of a large LaTeX expression in LaTeX. #manim #mathtex #latex #indexlabels

	from MF_Tools import ir
	class bigeqn(Scene):
	def construct(self):
	eqn = MathTex(
	r"""1+\sum_{i=1}^{2}\left\lfloor\left(
	\frac{1}{\sum\limits_{j=1}^{i}\left\lfloor\left(\cos\left(\frac{(j-1)!\,+1}{j}\pi\right)^2\right)\right\rfloor}
	\right)^\frac{1}{1}\right\rfloor"""
	)
	# uncomment for index labels
	#self.add(eqn, index_labels(eqn[0]).set_color(RED))

uwezi / 20251211_newton.py

Last active January 22, 2026 15:24

[planetary orbit] Simulating a stable planetary orbit in Manim. #manim #astro #physics #updater #newton

uwezi / 20251210_glow.py

Last active December 10, 2025 18:48

[Glow effect] Adding a blurry copy of an object. #manim #glow #shadow #PIL #bitmap

	from PIL import Image, ImageFilter

	class Scene2(MovingCameraScene):
	def construct(self):
	def blur_image(mobjs, blur=15, bright=1.2, scale_first=1.2):
	scene = Scene()
	render = scene.renderer
	objs = VGroup(*[m.copy().scale(scale_first, about_point=m.get_center()) for m in mobjs])
	render.camera.set_pixel_array(np.zeros_like(render.camera.pixel_array))
	render.camera.capture_mobjects(objs)

uwezi / 20251025_tikz.py

Last active October 27, 2025 16:16

[Tikz and XeLaTeX] Rednering Tikz code using XeLaTeX in Manim. #manim #latex #xelatex #dvisvgm #tikz

	from manim import *

	class tikztest(Scene):
	def construct(self):
	MyTexTemplate = TexTemplate(
	tex_compiler="xelatex",
	output_format=".xdv",
	documentclass=r"\documentclass[preview,dvisvgm]{standalone}"
	)
	MyTexTemplate.add_to_preamble(r"\usepackage{tikz}")

Uwe Zimmermann uwezi