Rotational Constructor

I started to add a new constructor some days ago. This one will get a 2d curve and then rotate it around an axis creating a solid of revolution. I called it "rotational constructor" as I didn't find a better term (and checking what other 3D apps call it seems to prove the absence of a good name).

The constructor is showing first results. I hard coded a default curve (a simple rectangle) and have started to implement the function which takes the curve and creates the surface. Currently the vertices are created and the edges are also there. So I only have to add the faces (and then the uv-coordinates) and this part should already be finished. The biggest issue will be to create the editor for the curve. But overall I hope it doesn't end like some of my other stuff in an endless series of changes.