Lmst

🧩🔢 Apparently, the nerd safari over at "Open Problems in Computational Geometry" has been tirelessly cataloging unsolved math mysteries since 2001. With a whopping 75+ problems, they now eagerly await your #GitHub Pull Requests to update their existential crisis board. Because, who wouldn't want to spend their free time proving that math still doesn't make sense? 🤷‍♂️💻
https://topp.openproblem.net/ #OpenProblems #ComputationalGeometry #MathMysteries #PullRequests #NerdSafari #HackerNews #ngated

Open Problems in Computational geometry

https://topp.openproblem.net/

#HackerNews #OpenProblems #ComputationalGeometry #MathTech #Innovation

"Encode #spatial data as #topology in #Python!

With #topojson it is possible to reduce the size of your spatial data. Mostly by orders of magnitude."

https://mattijn.github.io/topojson/

#geopython #geospacial #GIS #computationalGeometry

📚Crack the Code of Geometry – Expert Assignment Help is Just a Click Away!
💡 Stop stressing over geometry! Get the support you need today.

✅WhatsApp:- +91-9878492406
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#tutorintellect #geometryonline #geometrymath #computationalgeometry #geometryhomeworkhelp #geometryassignmenthelp #geometrytutoringhelp

Geometry Homework Help, Geometry Assignment Help, Geometry Tutoring Help

Meshes.jl has superb functionality for working with computational geometry, from primitives to algorithms https://juliageometry.github.io/MeshesDocs/dev/
#JuliaComputing #computationalgeometry and IO using GeoIO.jl to vtk/vtu etc. for easy visualization

Am I the only one who thinks Python's frozensets are amazing and a great way to deal with recognizing duplicated polygons?

If you represent a closed polygon as a sequence of vertices, you might get many different orderings of the same "ring" (clockwise, counter-clockwise, starting at different points of the cycle) and those are for most purposes "the same polygon". It is easy to see that "visually", but how to eliminate those duplicates in code?

If you represent the vertices as a set of edges made with frozensets you get the same result for all the possible rotations/windings that are the same polygon :)

#ComputationalGeometry #Python #DataStructures

# Shown on the upper part of Thonny IDE:

def vs_to_edges(vs):
return set(frozenset((v, vs[i-1])) for i, v in enumerate(vs))

a = vs_to_edges(((1, 0), (1, 1), (0, 1)))
b = vs_to_edges(((0, 1), (1, 1), (1, 0)))
c = vs_to_edges(((1, 0), (0, 1), (1, 1)))

# Then shown on the interactive console
>>> %Run sketch_2024_09_30.py
>>> a == b
True
>>> b == c
True
>>> a == c
True

@villares@pynews.com.br #ComputationalGeometry and #StraightSkeketons are such a rabbit hole... «Computing Straight Skeletons and Motorcycle Graphs: Theory and Practice»
https://www.sthu.org/research/publications/files/phdthesis.pdf

@villares@pynews.com.br there is a port of polyskel for #blender https://github.com/prochitecture/bpypolyskel
Used for making wonderful roofs! #Python #ComputationalGeometry

That suspicious moment where your code apparently not only works, but also solves the problem you’re trying to solve incredibly quickly, but you’re not sure if it actually does because it seems too good to be true and you trust the code about as far as you can throw it…

#programming #ComputationalGeometry #robotics #cplusplus

Runtime delaunay triangulation of 250 moving vertices 🔥

Used the randomized incremental algorithm to calculate the triangulation.

I actually want to calculate voronoi diagrams because you can do some really, really cool things with those!

Gimme DOTS Geometry (Unity Asset) is still on sale btw!

#delaunay #indietech #algorithms #computationalgeometry

Distributed Geometrical Problems

https://peervideo.club/videos/watch/4c9336dc-d85f-4b1f-8f82-1932b88fbaf2

Hey #ComputationalGeometry people, do you ever have this mood where you flip-flop between "How many more ****ing edge cases are there?!" and "It can't secretly be *that* simple, can it?"

I swear I'm *badly* overthinking this.

#algorithms #geometry #research

New book by Hanspeter Mallot: “From #Geometry to #Behavior.
An Introduction to Spatial #Cognition”

“An overview of the mechanisms and evolution of #SpatialCognition, integrating evidence from #psychology, #neuroscience, #CognitiveScience, and #ComputationalGeometry.”

🌏 https://mitpress.mit.edu/9780262547116/from-geometry-to-behavior/

#CompNeuro #computationalneuroscience #CogSci

Today I learned that #PyGEOS and #shapely merged in 2021 and that brought ufunc numpy capabilities to shapely.

https://shapely.readthedocs.io/en/stable/ #Python #GIS #GEOS #computationalGeometry #Python #numpy

I'm trying to decide where to submit a paper on computational geometry. As a matter of principle I'd obviously like it to be open-access, but I can't afford to spend several thousand pounds on it, the way Elsevier et. al. would like me to. On the other hand, I'd also like to avoid places that are so low-circulation that nobody would end up seeing it.

Does anybody have any suggestions or advice? I'll be self-funding any costs.

#Academia
#OpenAccess
#ComputationalGeometry
#AcademicPublishing

This weekend's discovery: in the Object File Format (.off), which is used for representing 3D geometry, it is entirely possible to have vertices defined in the file that do not form part of any face.

Thankfully, my code was very easy to fix once I realised what was going on, though that did take a large chunk of my weekend, since the problem only manifested in circumstances that made everything take a long time to check.

#OFF
#ComputationalGeometry

12:42
I somehow feel like more of a human after my last hci class?? Not what I was expecting #win. Ready to skip my last two classes and conquer more #computationalgeometry.

Caffeine intake since last update:
#2 sips of #tea

No work update