API Reference > OdDg Classes > OdDgCurveElement3d Class > OdDgCurveElement3d Methods > getSecondDeriv Method > OdDgCurveElement3d::getSecondDeriv Method (double, OdGeVector3d&)
OdDgCurveElement3d::getSecondDeriv Method (double, OdGeVector3d&)
Syntax
C++
virtual OdResult getSecondDeriv(double param, OdGeVector3d& secondDeriv) const;
Parameters 
Description 
double param 
[in] Parameter specifying point.  
OdGeVector3d& secondDeriv 
[out] Receives the first derivative. 
pointOnCurve 
[in] Point on the curve.  

Returns eOk if successful, or an appropriate error code if not.

Returns the second derivative of this Curve object at the specified point. 

 

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