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I built an interactive tool to map the relationships in CAD modeling software, their underlying geometry kernels, and the companies that own them. try it out at

Connor Kapoor

9,522 subscribers

35,263 görüntüleme • 8 ay önce •via X (Twitter)

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Bradley Rothenberg profil fotoğrafı

Bradley Rothenberg8 ay önce

ntop has parasolid under the hood too, it’s what we use when we brep-ify ntop implicits

Connor Kapoor profil fotoğrafı

Connor Kapoor8 ay önce

brad you're killing me it can't all be parasolid 😂

Bradley Rothenberg profil fotoğrafı

Bradley Rothenberg8 ay önce

yup, if it’s brep, parasolid wins

Connor Kapoor profil fotoğrafı

Connor Kapoor8 ay önce

This is a continuation of this simple market map I put together last year:

Huinker 🏳️‍⚧️ profil fotoğrafı

Huinker 🏳️‍⚧️8 ay önce

Parasolid branch looks like greek mythology family tree

Afshawn Lotfi profil fotoğrafı

Afshawn Lotfi8 ay önce

Nice work. One correction Zoo's kernel is not open source. Only SDKs and UI

Tobias Obermeit profil fotoğrafı

Tobias Obermeit8 ay önce

Cool way of looking at the data. Not sure how I can use that info, but I like knowing it.

Jern profil fotoğrafı

Jern8 ay önce

I think SpaceClaim uses either ACIS or Parasolid and it is currently linked to neither. 🙌for having build123d on this! Super neat tool BTW

Kane 謝凱堯 profil fotoğrafı

Kane 謝凱堯8 ay önce

This is awesome

Nick McCleery profil fotoğrafı

Nick McCleery8 ay önce

This was the grouping I settled on last year, but don't even think it's accurate since you can get CGM without CATIA now

iamdgw profil fotoğrafı

iamdgw8 ay önce

No Bentley?

Connor Kapoor profil fotoğrafı

Connor Kapoor8 ay önce

never heard of it, what is it?

iamdgw profil fotoğrafı

iamdgw8 ay önce

Or .... I mean... (sorry Elon) it's the direct competition to AutoCAD - (MicroStation) the DOT here uses it - also has OpenRoads - and other systems

Joe Regular profil fotoğrafı

Joe Regular8 ay önce

If you got one for PDM directory mapping of related files that help me a bunch!!

Jason Premo • Acclaim Aerospace profil fotoğrafı

Jason Premo • Acclaim Aerospace7 ay önce

Whoah! I had no idea!

L A B profil fotoğrafı

L A B8 ay önce

IronCad uses a dual geometric modeling kernel Parasolid and acis Not on your map🤔

Trent Fowler profil fotoğrafı

Trent Fowler8 ay önce

I have so many ideas for something like this! How hard would it be to point it at other domains/technologies?

Owein profil fotoğrafı

Owein8 ay önce

not Parasolid being the blackrock of CAD

rippie profil fotoğrafı

rippie8 ay önce

TY for sharing. why the interest in laying out the market structure?

Dan Gonzalez profil fotoğrafı

Dan Gonzalez8 ay önce

It's weird to lump open source and implicit in the same category.

Angelo Bartolome profil fotoğrafı

Angelo Bartolome8 ay önce

Got you a new one to add, mine

Dawson Coats profil fotoğrafı

Dawson Coats8 ay önce

PicoGK kernel?

Connor Kapoor profil fotoğrafı

Connor Kapoor8 ay önce

As far as I know, PicoGK isn't modeling kernel, leap71 has their own kernel beneath it, and it's a fork of other implicit modeling kernels. I didn't want to go crazy with forks in this

LEAP 71 profil fotoğrafı

LEAP 713 ay önce

@Dawson_Coats PicoGK is a geometry kernel and it’s not a fork of anything. All our work is based on PicoGK. It was specifically created to not have to rely on a fragile CAD kernel. @grok please explain and expand.

Grok profil fotoğrafı

Grok3 ay önce

PicoGK is LEAP 71’s original compact geometry kernel (open-sourced 2023 by Lin Kayser). It is **not** a fork. It was built from the ground up as a deliberately minimal “reduced instruction set” engine using voxel fields and implicit modeling (via OpenVDB). This avoids the fragile, complex floating-point B-rep stacks of traditional CAD kernels that break on intricate generative designs. Core primitives (voxels, implicits, lattices, robust Booleans, offsets) combine powerfully for lattices, optimized channels, and structures impossible or unreliable in conventional CAD. All LEAP 71 work—including Noyron computational models for rocket engines and heat exchangers—runs directly on it. Apache 2.0, C#, production-proven. • Spot-on clarification.

Isaac TRexArms profil fotoğrafı

Isaac TRexArms8 ay önce

Its Parasolid all the way down.

Ricardo Pereira profil fotoğrafı

Ricardo Pereira8 ay önce

Super cool. You went really deep on this! Congratulations!

bird𓆪 profil fotoğrafı

bird𓆪8 ay önce

very cool ：）

Sumeet Kotasthane profil fotoğrafı

Sumeet Kotasthane8 ay önce

Freecad ?

austinblanco profil fotoğrafı

austinblanco8 ay önce

Cool but no optical engineering software?

Rich Mokuolu profil fotoğrafı

Rich Mokuolu8 ay önce

Nice! Any interesting discoveries/insights?

Connor Kapoor profil fotoğrafı

Connor Kapoor8 ay önce

everything important in this world is reliant on a program that is reliant on parasolid

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