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ODA Drawings SDK
API Reference > OdDb Classes > OdDbLine Class > OdDbLine Methods > OdDbLine::getSecondDeriv Method
OdDbLine::getSecondDeriv Method
Syntax
C++
virtual OdResult getSecondDeriv(double param, OdGeVector3d& secondDeriv) const;

Computes the second derivative for the specified parameter of the line entity and returns the three-dimensional vector instance. The second derivative is constant for any point of the line. 

 

Parameters
Description
param
[in] Parameter value specifying the point on the line as a Double value.
secondDeriv
[out] Reference to a variable in which this method must save the second derivative as three-dimensional vector instance.
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