API Reference > OdDb Classes > OdDb3dPolyline Class > OdDb3dPolyline Methods > TD_USING Method > OdDb3dPolyline::TD_USING Method (OdDbCurve::getFirstDeriv)
OdDb3dPolyline::TD_USING Method (OdDbCurve::getFirstDeriv)
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Syntax
C++
Group
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