NurbSurfaceGetNormal Method

Returns the normal vector at the specified parameter location ([u, v]).

Namespace: Teigha.DatabaseServices
Assembly: TD_Mgd (in TD_Mgd.dll) Version: 24.2.0.0

Syntax

public Vector3d GetNormal(
        double dU,
        double dV
)

Public Function GetNormal ( 
        dU As Double,
        dV As Double
) As Vector3d

public:
Vector3d GetNormal(
        double dU, 
        double dV
)

member GetNormal : 
        dU : float * 
        dV : float -> Vector3d

Parameters

dU Double: [in] U parameter.
dV Double: [in] V parameter.

Return Value

Vector3d

Remarks

If the surface doesn't contain control point information, the method throws the eFail exception. The method throws the eOutOfRange exception if dU or dV are not valid.

Reference

NurbSurface Class

Teigha.DatabaseServices Namespace