Hi
Try to use command "Boundary Patch" as attached image shown.
Regards,
Kevin-Hongyuan Li
Software Quality Assurance Engineer
Design, Lifecycle and Simulation Product Group
Direct: +86 21 2039 6025
Email: Hongyuan.Li@autodesk.com
Autodesk, Inc.
NO. 130, Lane 91, E Shan Rd
Building 12, Floor 6,
Shanghai 200127, PRC
www.autodesk.com