SofaTpstv Method

public static void Tpstv(
	double xi,
	double eta,
	double[] v0,
	double[] v
)

Public Shared Sub Tpstv ( 
	xi As Double,
	eta As Double,
	v0 As Double(),
	v As Double()
)

Parameters

xi  Double

Projection coordinate ξ of tangent point.

eta  Double

Projection coordinate η of tangent point.

v0  Double

Unit vector of tangent point (length 3).

v  Double

Returned unit vector on projection plane (length 3).

Reference