Add G1 G2 to Rail for Loft command

[cekuhnen]

The surface patch in Fusion cannot deal with this shape and close it - makes sense.

But the Loft tool (essencially sweep two rail like in Alias) only has G0 to G2 settings for the profile but not the rail egde which can be sampled from a surface!

it is more or less a crucial ability to make the rails also G0 to G2 for complex surfacing tasks.

[roambotics_scott]

To me this falls under a more general «principle of least surprise» / «don't surprise the user ».

Mathematically I can see why you might end up with something like the right (although it seems odd not having first order continuity by default), but that'd definitely not be intuitive or what I'd imagine almost anyone would actually want.

Even if it means you have to do more work on the back-end, things should behave in a way that feels natural and intuitive.

[keqingsong]

Patch loft with rails is coming in our July update.