SofaTpxes Method

public static int Tpxes(
	double a,
	double b,
	double a0,
	double b0,
	ref double xi,
	ref double eta
)

Public Shared Function Tpxes ( 
	a As Double,
	b As Double,
	a0 As Double,
	b0 As Double,
	ByRef xi As Double,
	ByRef eta As Double
) As Integer

Parameters

a  Double

RA of target point (radians).

b  Double

Dec of target point (radians).

a0  Double

RA of tangent point (radians).

b0  Double

Dec of tangent point (radians).

xi  Double

Returned ξ coordinate.

eta  Double

Returned η coordinate.

Return Value

Reference