Got your points about continuity vs. symmetry. And just spend some time to learn "Section Surface" by your exmples. Yes it's a very powerful tool for surfacing. It seems to be some kind of sweeping. So far I still think "Swept" is the top 1 commmand most difficult to understand in NX modeling and try everthing to shun it. Concepts, such as local coordinate system, shearing body, and interpolation, are really difficult to imagine, especially when there are 2~3 guides. You should have excellent knowledge about how it works. Hope to learn more from you in the future.
The solution based on Fill Surface is really AWESOME!
Learning in last days is a big milestone for my NX experience. Thank you Sir!
One thing seems to be difficult to understand: The side boundaries are only G1 continuous, not G2. How can Fill Surface yield a perfect surface with uniform Reflection?
What I means is like this:
The two boudaries are only G1 continuous, how can the final surface give uniform reflection?
In my understanding, to give uniform reflection as in your file, the surface must be at least G2 continuous throughout. Is this wrong?