Returns the control points and the quantity of control points in both U and V directions. 

eOk if control points were successfully returned, or an appropriate error code otherwise.

The control points will be allocated in the passed-in OdGePoint3d array. The column indices are for the V direction, and row indices are for the U direction. For example, if the surface has n control points in the U direction and m control points in the V direction, the array looks like [0,0], [0,1], ...[0,vCount-1], ..., [uCount-1,0], [uCount-1,1], ...[uCount-1,vCount-1].