It’s me again, I have a simple question for you guys.
The question is that I have a bunch of enclosed curve here, and I use the polyline offset first, and then I connect the original enclosed curve and the Contour curve from the polyline offset to the flatten boundary surface component, but the surface I got is the surface containing all the area within the contour curve, what I want is just the area between the contour and original curve, more like a ring. I have use the same way to do other single enclosed curve and it worked, but for thosed enclosed curve, it is not, any suggetions? THX!
Mingbangboundary surface issue.3dm (11.4 MB) boundary surface issue.gh (5.9 KB)