Image ‘A’ and ‘B’ is a basic version I have created in Rhino, trying to show what I want to achieve. Essentially I would like all of the pink surfaces to be one continuous surface with tangency conditions leading into every cylinder.
This happens rather often. I believe some schools give assignments with option to use discourse and this results in many similar topics being created in a short span of time.
I didn’t even try to do this on arbitrary curved surfaces.
In the “holed base” group, a Polygon or rectangle instead of a circle could be used as the input to Boundary. In any case, the boundary curve must encompass all the flanges or the surface will fail. Likewise, the “triangular points in circle” group could use a polygon or rectangle instead of a circle to trim points. The two serve different purposes.