API Reference > Classes > PRC Surface Classes > OdPrcBlend03Surface Class > OdPrcBlend03Surface Methods > secondDerivatives Method > OdPrcBlend03Surface::secondDerivatives Method ()
OdPrcBlend03Surface::secondDerivatives Method ()
Returns the current array of second derivatives. The array of second derivatives is returned as a reference to an OdGeVector3dArray object, therefore it can be used to set new second derivatives.
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