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ODA Drawings SDK
API Reference > OdDb Classes > OdDbNurbSurface Class > OdDbNurbSurface Methods > OdDbNurbSurface::getControlPointAt Method
OdDbNurbSurface::getControlPointAt Method
Syntax
C++
OdResult getControlPointAt(int iUIndex, int iVIndex, OdGePoint3d& point) const;

Returns the control point (in WCS coordinates) at the specified position in the control points vector. 

 

Parameters
Description
iUIndex
[in] An index of a control point in the u direction. Index starts from the 0 value.
iVIndex
[in] An index of a control point in the v direction. Index starts from the 0 value.
point
[out] The control point (in WCS coordinates) at specified index.

Returns eOk if a control point was returned successfully. If the surface doesn't contain the control point information, the method returns eFail. Returns eOutOfRange if the uIndex or vIndex are not valid.

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