Hello! Could you please tell me how can I build splines on top of the imported dense mesh?
you can use commands like
_Contour or project and pull lines and curves on your mesh, then use
_Rebuild to convert your resulting polylines to splines (NURBS) curves.
The closest to create a smooth curve on a mesh is to start eg. the
_InterpCrv command and type
_PersistentOnMesh. After selecting the mesh all picked points during the curve drawing will be snap constrained on the mesh. Note that this does not force the curve itself to end on the mesh, but you can
_Rebuild it again to get very close while maintaining the overal smoothness.
Thank you Clement! Very interesting methods. I found that spline snaps on the surface, when you simply snap to vertices, so making a dense enough mesh is the solution for me.