uwezi’s gists

uwezi / 20260311_pixelate.py

Created March 11, 2026 14:47

[pixelate] Pixelate Mobjects in Manim. #manim #pil #image #pixel

	from PIL.Image import Resampling
	class doesthiswork2(Scene):
	def construct(self):
	vpixels = 40
	svg = VGroup(
	Circle(),
	Text("Test")
	)
	oheight = svg.height
	svg.scale_to_fit_height(8/(config.pixel_height/vpixels),scale_stroke=True)

uwezi / 20260218_manifold.py

Last active February 18, 2026 14:38

[Manifold3D and Manim] Using the manifold3D library within Manim. #manim #3D #manifold3D #csg

	from manim import *
	import manifold3d as mf3

	class spherical(ThreeDScene):
	def construct(self):
	self.set_camera_orientation(phi=70 * DEGREES, theta=-70 * DEGREES)
	sp = mf3.Manifold.sphere(radius =2, circular_segments=24)

	verts = sp.to_mesh().vert_properties
	manimsphere = VGroup(

uwezi / 20260128_meterclass.py

Created January 28, 2026 17:41

[Analog meter] A class object for analog meters. #manim #animation #electronics #class

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))

Uwe Zimmermann uwezi