OdDbCurve::getFirstDeriv Method (const OdGePoint3d&, OdGeVector3d&)
Syntax
C++
virtual OdResult getFirstDeriv(const OdGePoint3d& pointOnCurve, OdGeVector3d& firstDeriv) const;
Description
DescriptionReturns the first derivative of this Curve object at the specified WCS point.
Parameters|
Parameters |
Description |
|
pointOnCurve |
[in] Point on the curve. |
|
firstDeriv |
[out] Receives the first derivative. |
ReturnsReturns eOk if successful, or an appropriate error code if not.
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