Where Geometry.Extrusion Srf?

I want too extrude a surface in both directions.

Geometry.Extrusion.CreateExtrusion etc. only know curves. Where are the surface extrusions hiding? :stuck_out_tongue:

It seems that ExtrudeSrf is nothing more than ExtrudeCrv on each of the edges. But I may be wrong.

Was thinking the same when I was eating. Good time to think.

thanks :slight_smile:

For surfaces, you can use: