Was working on surface closure methods, and was using a torus as a test surface (since it has two "periodic" mesh directions to close over).
Son: "What yah making papa?"
Me: Oh I'm using this doughnut to..
Son: That is not a doughnut! That is the wrong color.
Me: Okay, let me render it brownish and..
Son: No, you need to add chocolate too, and sprinkles of all colors!
Me (15 min later): Got it!
Meet the "Pyritohedron", named after the shapes seen in the crystals of the mineral pyrite.
https://en.wikipedia.org/wiki/Dodecahedron#Pyritohedron
These shapes are involved in the Weaire-Phelan bubble structure:
https://en.wikipedia.org/wiki/Weaire%E2%80%93Phelan_structure
I am working on these as I am implementing various foams and lattice structures in #Comodo #JuliaLang
I recently posted a demo how to combine plots in Julia with typst (latex is also possible). I now wrote a blogpost on it:
https://benediktehinger.de/blog/science/plot-matrices-formulas-in-julia-with-typst-or-latex/
#makie @makieorg #typst #visualization #plotting #latex #julialang
@jonocarroll @cormullion @felixcremer juliahub are probably happy with SEO- friendly content 😉
@jonocarroll @felixcremer I remember Logan was keen on Medium.com when he was Community Manager. I think it used to be that anyone could read the first 10? posts "for free" without being a member - and probably some people complained about the use of medium.com back then for that very reason (perhaps I was one, I can't remember :)). I wonder whether publishing there these days is a self-promotional benefit for the writer rather than essential content for readers, but perhaps I'm biased...
Speak at PyData Global 2024 and let the whole world hear your data tales!
ANYONE is welcome to apply! Turn your ideas into reality by learning and speaking with our international scientific computing community. Be part of the global data conversation, and join us at PyData Global 2024!
#Python, #rstats & #Julialang talks welcomed
CFP Deadline Oct. 14! Tickets now also available: https://hubs.la/Q02SlQY80
Today’s rankings of all Julia books on Amazon:
Julia v1.11 is now the release channel of juliaup 🎈🙃
#JuliaLang :julia:
Jeff’s talk at HEP - “Can Julia replace C++?” - is interesting
I wrote a long post explaining how I do format my figures for publications, posters and so on., on how to ensure everything looks nice on the paper (or the screen). With tips both for #matplotlib and #makie! Most probably I will have to polish the writing a bit, but here it is, enjoy! https://victorseven.github.io/2024/09/making-graphs #dataviz #julialang #python
Julia High Energy Physics conference at CERN today
#julialang #CERN
https://indico.cern.ch/event/1410341/
I'd never expected that it would be actually easy to programmatically generate a vector-plot like this: combining #typst / #latex with actual data plotting
@makie #visualization #julialang
Edit: I had a small mistake in coloring
Edit2: pluto-gist for simplified plot: https://gist.github.com/behinger/f279ade01879de3dd0e48dddda6d505e - see response for more details
https://jcarroll.com.au/2024/09/25/in-place-modifications/
In which I got unreasonably upset that in #rstats :rstats: I can update the values of x where f(x) is TRUE with
x[f(x)] <- y
but it requires typing out "x" twice, so I pined for something like
x[f] <- y
detouring through #python :python: #julialang :julia: and #dyalog #APL 🍏
A video introducing some Julia syntax and graphics for Python programmers, using an infinite series as an example.
@oblomov Hi there! Wow, I’m impressed by the analysis you’ve made on the logo! I can confirm your hypothesis that it I designed it visually (its proportions and such). I’m not sure if I calculated somehow the rotation of the pentagram so it fits a square on all sides. Actually, I’m just checking right now and the fit is not perfect (in mm, it is 173,226 x 173,282), but certainly good enough for the objective: that the center of the pentagram is the center of the square and that the limits of the image are square [enough] so that if it is used as an avatar, the usual masking of the avatar image as a circle leaves the pentagram at the center, and, therefore, it is not cut somehow uglily. Also, I hadn’t come across Cormullion’s procedural verision of it written in Julia, and its fractal versions and animations! I attach the animation, wonderful! I guess it’s @cormullion on the #Fediverse?
I love the love put into it 💞. I’m also a bit torn as to the proposal of the asterism ⁂ as a new logo. I like it very much, and actually even more than the pentacle, with more possibilities and variations (see this old post of mine, for example). Maybe some emotional attachment prevents me from jumping into the new one (adding the asterism to my name, as some people are doing, for example).
Anyway, I enjoy seeing the paths this logo and other proposals are taking, the conversations around it (even around the need for a logo at all). Humans connecting, after all!
My writeup on recreating the #Fediverse #logo #SVG by hand (and with geometric descriptions)
https://wok.oblomov.eu/ars/manual-birth-of-a-logo-2/
If anybody has ideas on how to do “inverse clip” in SVG that does not involve mask (which have the issues explained in the post), suggestions are welcome.
[EDIT: fixed link because I moved the page after noticing a typo in the slug]
The Plucked String: an interactive webpage using Julia:
https://lee-phillips.org/pluckit/
Simulates the effect of pluck position on the timbre of plucked string instruments.
Small advertisement for my Ph.D. thesis and code, focused on #computervision for #robotics.
Using #julialang to implement #Bayesian inference algorithms for the 6D pose estimation of known objects in depth images.
TLDR: it works even with occlusions; needs <1sec on a GPU; does not need training; future research could focus on including color images / semantic information since SOA performs much better if color images are available.
doc: https://publications.rwth-aachen.de/record/985219
code: https://github.com/rwth-irt/BayesianPoseEstimation.jl
