Hi

> Network and Sweep produces 2 different results. Both are not continuous, I guess due to the sharp curve on top:

Right, yes that's to be expected - if you use a surface construction method and give it a curve with a sharp corner in it, that sharp corner is going to be inherited into the constructed surfaces.

The main way to avoid that is to do what you show and have a larger smooth surface with the sharp corner borders coming from a trimming boundary instead of being a direct part of the underlying surface.


> And it's a trimmed surface, so isocurves are not natural:

Ok, but why is that a problem? It's normal for many areas of a model to be made of trimmed surfaces.

In something like this where you want a smooth surface with an irregular boundary a trimmed surface is what you want.

Also It can tend to be helpful to work with the neighboring surfaces at the same time, instead of just one surface in isolation like you've been doing here.

Then you can make trims from things like 2 extended surfaces intersecting against each other.

- Michael