Surface Control Points to Graph Mapper

Hi everyone,

Im trying to create a workplace or some kind of tool that helps during ship design. As you might know ships are basically longitudinal collobraion of frame structures (can be seen in below)

As you can see the frames are essentially organic curvatures that creates the hydrodynamic structure of ship.
So i was wondering is there a way to introduce surface control points into a graph mapper to form that smooth curvatures ?

The process can be done with adjusting graph in a certain shape and that shape will form the control points of surface.