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ODA Drawings SDK
API Reference > OdDg Classes > OdDgBSplineSurface Class > OdDgBSplineSurface Methods > OdDgBSplineSurface::isRational Method
OdDgBSplineSurface::isRational Method
Syntax
C++
OdResult isRational(bool& bIsRational) const;

Determines whether the surface is rational. If the surface is rational, the method returns true, otherwise the method returns false. 

 

Parameters
Description
bIsRational
[out] A passed-in parameter for returning the indicator of whether the surface is rational.

Returns eOk if successful. If the surface doesn't contain any NURBS information, returns eFail.

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