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After Kenneth's recent post, I was contemplating the structure of meshes, and
how to mesh a raw point cloud, and my brain started connecting Voronoi with the
gift-wrapping algorithm, and somewhere in there I thought it would be
interesting to simply see the intersection of the prisms generated by projecting
the points onto the 3 cardinal planes.
An even, regular distribution of a lot of random points basically gave me a cube
with uneven edges and corners, so I cut down the number of points, and then
anisotropically scaled the random coordinates.
I think that a lot of points randomly generated inside a more complex object
would yield more interesting results.
As would intersecting more than 3 prisms.
But it was just playing with the proof-of-concept of the idea.
Kind of an axis-aligned bounding prism, if you will.
Enjoy.
- BE
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On 19/09/2025 02:00, Bald Eagle wrote:
> After Kenneth's recent post, I was contemplating the structure of meshes, and
> how to mesh a raw point cloud, and my brain started connecting Voronoi with the
> gift-wrapping algorithm, and somewhere in there I thought it would be
> interesting to simply see the intersection of the prisms generated by projecting
> the points onto the 3 cardinal planes.
>
> An even, regular distribution of a lot of random points basically gave me a cube
> with uneven edges and corners, so I cut down the number of points, and then
> anisotropically scaled the random coordinates.
>
> I think that a lot of points randomly generated inside a more complex object
> would yield more interesting results.
>
> As would intersecting more than 3 prisms.
>
> But it was just playing with the proof-of-concept of the idea.
>
> Kind of an axis-aligned bounding prism, if you will.
>
I'm surprised you brought that up !
I've been studying this same topic since this morning, and I'm currently
studying Leo McCormack's code on GitHub.
<https://github.com/leomccormack/convhull_3d>
LOL
--
kurtz le pirate
compagnie de la banquise
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