API Reference > OdGe Classes > OdGePointOnCurve2d Class > OdGePointOnCurve2d Methods > deriv Method > OdGePointOnCurve2d::deriv Method (int, OdGeCurve2d&, double)
OdGePointOnCurve2d::deriv Method (int, OdGeCurve2d&, double)
Syntax
C++
OdGeVector2d deriv(int order, const OdGeCurve2d& curve2d, double param);
Parameters 
Description 
int order 
[in] Specifies the order of the derivative [1-2].  
const OdGeCurve2d& curve2d 
[in] Any 2D curve. Sets the current curve. 
double param 
[in] Sets the current parameter.  

Returns the derivative of the curve at the point on the curve. 

 

Currently not implemented.

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