dune3d VS OCCT

Why in a browser if it's local-first?

Solvespace has the benefit of being a single download/executable.

It also has a constraint solver which has been used in a couple of projects: CADsketcher as you noted, and Dune 3D: https://github.com/dune3d/dune3d where the author noted:

>I ended up directly using solvespace's solver instead of the suggested wrapper code since it didn't expose all of the features I needed. I also had to patch the solver to make it sufficiently fast for the kinds of equations I was generating by symbolically solving equations where applicable.

Any relation to: https://github.com/jay3sh/cadmium ?

Also, for CAD kernels, Manifold was not mentioned: https://github.com/elalish/manifold/wiki/Manifold-Library --- while I understand it to have many of the same disadvantages as OpenCASCADE, it does seem worth mentioning.

Interestingly the kernel was previously discussed here:

https://news.ycombinator.com/item?id=35071317

It seems really interesting/promising, esp. the compleat history and editability (I'd love to see that history listed in a pane which could be opened/closed --- add a series of disclosure triangles which would allow hiding finished elements so that one could focus on the current task and it would be a dream come true for me --- if I can puzzle out the 3D stuff, so far I've crashed and burned on all the apps I've tried (BRL-CAD, FreeCAD, Solvespace, Alibre Atom...) --- the only thing I've been successful w/ is OpenSCAD and similar coding tools).

The footnote from the main page:

https://github.com/dune3d/dune3d

is notable:

>I ended up directly using solvespace's solver instead of the suggested wrapper code since it didn't expose all of the features I needed. I also had to patch the solver to make it sufficiently fast for the kinds of equations I was generating by symbolically solving equations where applicable.

There's also a top-level domain:

https://dune3d.org/

and documentation: https://docs.dune3d.org/en/latest/

i was able to get this building (https://github.com/dune3d/dune3d/issues/3) and running on debian trixie. worth noting that the workflow seems to be mostly keyboard driven with no toolbox to create shapes that i could find.

So have I have this project of writing a geometric kernel, something in the vibes of Opencascade : https://dev.opencascade.org/

What is this opencascade open source cad. The only thing I find is freeware (not open source) stuff at https://dev.opencascade.org

They integrated OCCT, so they do now have code to read STEP as part of the code base. Yes, I am aware it is tessellated right now (which is the obvious first step to make it work), but that can be changed in future. Point is: they now have at least half of the necessary code available.

The only thing coming to mind is https://dev.opencascade.org/ - it was the original kernel of the ipad app shapr3d.

The OpenSource cad project, are you talking about this? https://dev.opencascade.org

nvm, here's this:

Also, FreeCAD is built on the OCCT library and it inherits many of its limitations from that. Ideally, a lot of issues should be fixed in the library and FreeCAD would automatically be improved. Unfortunately, and I could be wrong, but I don't think FreeCAD developers have much influence on what happens at OCCT, apart from filing bug reports and such.