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Trimming of TopoDS_Wire

M.G.THIRUNAVUKKARASU's picture
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Hi
I am trying to extract a sub curve from the given wire. Assume wire contains more than one edge. i am trying to extract the edges between two params say start and end.

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TopoDS_Wire edge = TopoDS::Wire(*curve);
BRepAdaptor_CompCurve wireAdaptor(edge);
Handle_Adaptor3d_HCurve ccurve = wireAdaptor.Trim(startParam, endParam, Utility::LinearTolerance);
BRepAdaptor_HCompCurve acurve = dynamic_cast(*ccurve);
BRepAdaptor_CompCurve cc = acurve.ChangeCurve();
======================================

but when i try to access the wire from cc it gives full untrimmed wire rather than trimmed wire.
i do not know what and where i am going wrong.

Request the team support to get the solution.

Thnx n Rgds
Thiru