API Reference > OdGe Classes > OdGeCubicSplineCurve3d Class > OdGeCubicSplineCurve3d Methods > OdGeCubicSplineCurve3d::setFirstDerivAt Method
OdGeCubicSplineCurve3d::setFirstDerivAt Method
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Syntax
C++
OdGeCubicSplineCurve3d& setFirstDerivAt(int fitPointIndex, const OdGeVector3d& deriv);
Parameters
Parameters 
Description 
int fitPointIndex 
[in] Fit point index.  
const OdGeVector3d& deriv 
[in] The first derivative at the fit point.
 
Returns

Reference to this curve.

Description

Sets the first derivative at the specified index, and returns a reference to this curve. 

 

Remarks

Currently not implemented.

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