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

This is TD_USING, a member of class OdDbXline.

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