Building offset wire from an open wire


I want to build an offset wire froman existing planar wire. The source wire is not closed. If I use the BRepOffsetAPI_MakeOffset the offset wire encloses the source wire. That's not what I need. I just want to build an offset in one direction depending on the normal of the wire.

I hope you can understand what I mean. Its pretty difficult to explain. The possibility to post some images here would be great...


Mauro Mariotti's picture

Maybe with BRepFill_OffsetWire:

"Constructs a Offset Wire to a spine (wire or face) on the left of spine".

Has anyone used it?

In OpenCascade it is called by BRepOffsetAPI_MakeOffset and BRepFill_Evolved.