I had a closed surface shaped like a bowl but with circular openings at the top and bottom. The seam runs from one opening to the other so it’s essentially a cylinder with the seam running from the top opening to the bottom.
I called it’s Offset method to create an inner shell and I used 0 for the tolerance (I want to use 0 so please don’t suggest that I use some other tolerance).
The problem is that the inner surface has now got naked edges where the seam was.
Is there a simple way to combine those edges and turn the open surface into a closed one?
I’ve looked at the Surface and the Brep classes and didn’t find the obvious way to do this.