Combine several faces into one face

Hi friends,
I have several faces and they are all connect. I want to combine them into one face, and
make its U parameters has the same direction and V paremeter also.

I used the BRepFill_Filling API, but, in some cases, the result do not fit to old faces(like attach).

In addition, I also tried BRepBuilderAPI_Sewing, but the type of result is become TopoDS_Shell (not TopoDS face).
(by the way, I also don't know how to get U V parameter from TopoDS_Shell)

I have no ideal to combine several faces into one face.
Please help me (give me some suggestion), many thanks.

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Forum supervisor's picture

Hello Ying-Rui,

Please check this forum thread http://www.opencascade.org/org/forum/thread_26540/ .

Best regards,
Forum supervisor