Fornjot

I worked on a few different things last week, but my main achievement was the implementation of geometric validation, at least as much of it as is needed and useful right now (#613). This allowed for some more progress towards approximating faces in surface coordinates (#568), which is currently the main issue that blocks work on implementing the union operation (#42).

Meanwhile, @chrisprice got busy fixing the input/camera code, which had been sitting in a semi-broken state for a while now. @gabsi26 started contributing to Fornjot, with the addition of an Angle type, and some very welcome bug fixes.

Sponsors

Fornjot is supported by @webtrax-oz, @lthiery, @Yatekii, @martindederer, @hobofan, @ahdinosaur, @thawkins, and my other awesome sponsors. Thank you!

If you're interested in helping to make the project sustainable long-term, please consider supporting me too.

End-user improvements

Improvements to Fornjot and its documentation that are visible to end-users.

• Fix field of view calculation (#614; thanks to @chrisprice!)
• Add Angle type (#619, #621; special thanks to first-time contributor @gabsi26!)
• Fix bounding volume calculation for swept shapes (#623; thanks to @gabsi26!)
• Fix face orientation for sweeps in negative direction (#628, #630; thanks to @gabsi26!)
• Improve error message for shape processing errors (#635)
• Improve Angle (#641; special thanks to first-time contributor @T0mstone!)

Ecosystem improvements

Improvements to the Fornjot ecosystem that are relevant to developers who are building on top of Fornjot components.

• Extract fj-window from fj-viewer (#640)

fj-kernel

• Implement geometric validation (#618, #620, #626, #636, #637)
• Simplify local representation of edge vertices (#625)
• Replace problematic Edge constructor (#627)
• Add missing re-export (#631)

fj-operations

• Improve error handling (#629, #632)

fj-viewer

• Improve error handling (#633)

Internal Improvements

Improvements that are relevant to developers working on Fornjot itself.

• Update dependencies (#615, #616)
• Upgrade to Rust 1.61.0 (#617)
• Some small cleanups (#622)
• Fail CI build, if any warnings are present (#624)
• Improve handling of panics (#634)
• Add test model that uses most features (#638, #639)

Issue of the Week

Fornjot isn't using a lot of unsafe code, but we need some of it in the fj crate, to support loading models into the Fornjot application at runtime. Maybe a bit of unsafe code sounds like a fun and slightly dangerous challenge to you? If so, why not take a look at #186 - fj::Sketch is leaking memory?

Outlook

With all new distractions out of the way now, I can continue working on #568, with the goal of implementing the union operation (#42). I keep making slow and steady progress, and I hope that will continue this week.