Creates OdDbRegion entities from the closed loops defined by the specified curve segments.
Returns eOk if successful, or an appropriate error code if not.
Each curve segment must be one of the following
untitled table OdDb3dPolyline OdDbArc OdDbCircle OdDbEllipse OdDbLine OdDbPolyline OdDbSpline
The newly created regions are non- database -resident. It is up to the caller to either add them to an OdDbDatabase or to delete them.