How to retain original geometry (partially) and redraw (rest)?

Altair Forum User

I would like to (after optimization) keep the original geometry in the red boxed section and redraw the section in black circle by keeping the outer faces intact (e.g. radius). Using PolyNURBS is getting this hard to achieve. How can I do this?

Thanks!

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Altair Forum User

Could anyone please suggest a way? It's part of my PhD thesis.