Autodesk
5th Sep 2006, 12:18 pm
When you tried to use the LOFT command to create a surface, you received one of the following errors and the surface was not created: The selected entities are not valid. Modeling Operation Error: Surface U and V derivatives are in the same or opposite direction.
More... (http://usa.autodesk.com/adsk/servlet/ps/item?siteID=123112&id=7804217&linkID=2475323)
More... (http://usa.autodesk.com/adsk/servlet/ps/item?siteID=123112&id=7804217&linkID=2475323)