CGAL

CGAL is a software project that provides easy access to efficient and reliable geometric algorithms in the form of a C++ library.

[CGAL @TheCGALProject]

The CGAL Open Source Project is pleased to announce the release 6.2 of CGAL, the Computational Geometry Algorithms Library.

2D Alpha Wrapping, 3D barycentric coordinates, new mesh kernel implementation, fast convex hull intersection, and more!

Changelog: https://t.co/QOl4aN189T

[Kitware @Kitware]

VESPA 1.0 is now available!

VESPA brings CGAL geometry processing algorithms into VTK and ParaView workflows, including:
• Poisson surface reconstruction
• Signed distance function generation
• Mesh deformation
• Alpha wrapping

Read more: https://t.co/GWGzSZnXm2

#Vespa #VTK #ParaView

[Inria Academy @Inria_Academy]

🧭Calcul géométrique 2D/3D : maîtrisez CGAL
📆29 avril, découvrez CGAL, la bibliothèque #OpenSource d’algorithmes géométriques utilis��e pr la modélisation 3D, les maillages ou l’infographie
👥Pour ingénieurs R&D & développeurs C++
👉https://t.co/xj5ie4Iv5V
#deeptech #training

[CGAL @TheCGALProject]

@natsu_water You should be able to use CGAL::create_offset_polygons_2() and the weighted skeleton, or the functions CGAL::create_interior_weighted_skeleton_and_offset_polygons_with_holes_2() / CGAL::create_exterior_weighted_skeleton_and_offset_polygons_with_holes_2().

[CGAL @TheCGALProject]

New in CGAL: a 2D version for Alpha Wrapping.

Generate robust, watertight polygons (with holes) from any input. Unconditionally robust to input defects.

Coming in CGAL 6.2 (Summer 2026)!

Read more at https://t.co/3VrXJkbOjj

[CGAL @TheCGALProject]

New in CGAL: restructuring of the "Polygon Mesh Processing" package.

The 200+ documented functions for geometry processing on polygonal meshes have been re-organized into four distinct packages to improve usability.

Part of CGAL 6.2, preview here: https://t.co/vcMtq7yDPl

[Inria Academy @Inria_Academy]

🔬 Calcul géométrique 2D/3D : maîtrisez CGAL
Le 29 avril, découvrez CGAL, la bibliothèque #OpenSource d’algorithmes géométriques utilisée pr la modélisation 3D, les maillages ou l’infographie
🎯 Pour ingénieurs R&D & développeurs C++
👉 https://t.co/xj5ie4Iv5V #deeptech #training

[CGAL @TheCGALProject]

Happy to share the poster on mesh generation with CGAL that we presented last week at IMR26.

It gives a comprehensive overview of the existing tools for 2D, surface, and 3D meshing in CGAL, as well as a glimpse into some on-going developments!

[CGAL @TheCGALProject]

@mizt_org Feel free to open an issue on github (https://t.co/iSs7DfZwhl), and we can look into it.

thanks!

[CGAL @TheCGALProject]

The CGAL project has been accepted as a mentoring organization for the 2026 Google Summer of Code:
https://t.co/HE5D5D2uXE.

Check out our project page, https://t.co/0R1QKr20cO, and get in touch with our mentors!

#GSoC #GSoC2026 #OpenSource

[CGAL @TheCGALProject]

New in CGAL: Fast and robust computation of Fréchet distances in any dimension.

Based on the work of Bringmann, Künnemann, and Nusser "Walking the dog fast in practice".

Full blog entry: https://t.co/WTup8gvmgK

[CGAL @TheCGALProject]

New in CGAL: Remeshing of planar patches.

Using this new function, you can remesh models to use as few elements as possible, with control over the geometric error.

Planarity detection is customizable: Region Growing, RANSAC Shape Detection, ...

More @ https://t.co/JFbkkfRdr2

[CGAL @TheCGALProject]

New in CGAL 6.1: 2D triangulations on hyperbolic surfaces.

Coming from @INRIA Nancy, this new package offers a data structure and algorithms for Delaunay triangulations of closed orientable hyperbolic surfaces.

More: https://t.co/wuwgN1VGdp

[CGAL @TheCGALProject]

@lrineau Yes, you need to use https://t.co/tC1DWEn2ky.

[CGAL @TheCGALProject]

The CGAL Open Source Project is pleased to announce the release 6.1 of CGAL, the Computational Geometry Algorithms Library.

3D constrained triangulations, faster Boolean operations, 3D snap rounding, Fréchet distance computation, and much more!

Changelog:https://t.co/fTEIIBLtuR

[CGAL @TheCGALProject]

@Maplion0069 Hi, any chance you can submit the case on github so that we can work on speeding thing up?

[CGAL @TheCGALProject]

@Ameobea10 Hi, did you try do define CGAL_ALWAYS_ROUND_TO_NEAREST ? That way there is no rounding mode change to emulate. Intervals will be a bit larger but nothing dramatic on the performance.

[Casey Primozic / ameo @Ameobea10]

My latest creation with Geotoy, built using the alpha wrap function from the CGAL library

I've been getting a ton of value out of this; it's really useful for creating organic-looking structures

You can see it in 3D here: https://t.co/5PaIKJGVfs
(takes ~30 seconds to run)

[CGAL @TheCGALProject]

Later today, CGAL will be presented at the seminar "Geometry & Visualization" @FU_Berlin

Unusually, focus will be on organizational aspects of the open source project: license choice, infrastructure, sustaining a long-term project, ...

https://t.co/44JDT7cmDF

Slides to follow!