The scenario below should be very familiar to surfacing people.
It's to approximate an original curve (Oiriginal_Pink) with 5 segments: three simple splines (degree=2) and two fillets (degree=5). As far as what I've learnt until now, basically it need be done by pure manual work. The results by different people at different time might be signicantly different.
I wonder whether there's a mathematically optimal route to do the job.
Thank you for your comments!