Re:Rhino3d and DELFTShip

[Marven]

It’s a technical matter. Delftship uses a different type of surface than Rhino does, and this has advantages as well as disadvantages. One of the disadvantages is that the surface has to be converted to NURBS surfaces, the type of surface Rhino uses. Due to the fact that Delftship allows for triangular and other faces which are not supported by any NURBS modeler the converted model can have multiple surfaces. Once the delftship surface is converted it can be send to any NURBS modeler. Rather than implementing the 3DM format the choise was made to stick to IGES because it can be imported into multiple programs, rather than implementing and maintaining several file formats.