OdDbLine::getSecondDeriv Method

Syntax

C++

virtual OdResult getSecondDeriv(double param, OdGeVector3d& secondDeriv) const;

Parameters	Description
double param	[in] Parameter value specifying the point on the line as a Double value.
OdGeVector3d& secondDeriv	[out] Reference to a variable in which this method must save the second derivative as three-dimensional vector instance.

Description

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.