Comment by interstice
4 hours ago
Looking at this now, I like the approach! It's also fundamentally different from mine (maybe phew). The mouse driven approach makes it far more approachable, while mine is deliberately code driven and perhaps more quirky (step export is a code function for example).
Also looking at your API, I used a vector type a lot for defining things like planes, so where you have sketch("xz",func) mines a little more like plane(vec).sketch(). How are you handling sketching directly on arbitrary planes or faces etc?
It seems from what you are describing your software is more like (replicad)[https://github.com/sgenoud/replicad]
The user can create planes with plane() command e.g plane("xy") or plane("xy", { offset: 10 }); but I have added some shortcuts for common planes (https://fluidcad.io/docs/guides/sketching/introduction#sketc...)
you can also sketch on faces sketch(extrusion.endFace(), ...) which will extract the plane from face and put the starting point on the center for convinience.