PointOnSurfaceGetTangentVector(Vector2d, Point2d) Method

Maps the specified vector to the tangent plane of the surface at the specified parameter value. Currently not implemented.

Namespace: Teigha.Geometry
Assembly: TD_Mgd (in TD_Mgd.dll) Version: 25.3.0.0

Syntax

public Vector3d GetTangentVector(
        Vector2d vector,
        Point2d point
)

Public Function GetTangentVector ( 
        vector As Vector2d,
        point As Point2d
) As Vector3d

public:
Vector3d GetTangentVector(
        Vector2d vector, 
        Point2d point
)

member GetTangentVector : 
        vector : Vector2d * 
        point : Point2d -> Vector3d

Remarks

The tangent vector is mapped as follows:

tangentVector = GetUDerivative(1) * vector.x + GetVDerivative(1) * vector.y