NurbSurfaceModifyPositionAndTangent Method

Adjusts the location and tangent of a point on the surface with the specified parameter ([u, v]). The local control points are adjusted accordingly. If the pointer uDeriv and vDeriv are NULL, only the location of the point is adjusted.

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

Syntax

C++

Copy

public void ModifyPositionAndTangent(
        double dU,
        double dV,
        Point3d point,
        Vector3d uDeriv,
        Vector3d vDeriv
)

Public Sub ModifyPositionAndTangent ( 
        dU As Double,
        dV As Double,
        point As Point3d,
        uDeriv As Vector3d,
        vDeriv As Vector3d
)

public:
void ModifyPositionAndTangent(
        double dU, 
        double dV, 
        Point3d point, 
        Vector3d uDeriv, 
        Vector3d vDeriv
)

member ModifyPositionAndTangent : 
        dU : float * 
        dV : float * 
        point : Point3d * 
        uDeriv : Vector3d * 
        vDeriv : Vector3d -> unit

Parameters

dU Double: [in] U parameter.
dV Double: [in] V parameter.
point Point3d: [in] A new location of the point on the surface.
uDeriv Vector3d: [in] The tangent vector in the u-direction.
vDeriv Vector3d: [in] The tangent vector in the v-direction.

Remarks

Currently not implemented.

Reference

NurbSurface Class

Teigha.DatabaseServices Namespace