Is there a rule or formula for curved roof?

2nd 12 months structure scholar right here, I'm simply discovering how you can create curved roofs on Revit atm myself. I designed an instance however this roof was all random, I didn't stick to any rule whereas designing it. My objective is to create such roof we see on this instance

https://preview.redd.it/ey6prnm3s52b1.png?width=1307&format=png&auto=webp&s=46c929e86161a16ea8d340698cdc98c8164c9fbc