I use "BRepOffsetAPI_MakeOffset"
in OCC4.0 and OCC3.1 to create a offset wire and try to use different Join type(GeomAbs_Tangent,GeomAbs_Arc,GeomAbs_Tangent), but the results are the same, the Join type seems always keep GeomAbs_Arc. Who can tell me, it is OCC Bug or my way is wrong. my code as following,
GeomAbs_JoinType Join= GeomAbs_Intersection;