ASCOM Library
SofaTpxev Method
Gnomonic projection: unit vector to (ξ,η) plane coordinates.
Definition
Namespace: ASCOM.Tools
Assembly: ASCOM.AstrometryTools (in ASCOM.AstrometryTools.dll) Version: 3.0.0-rc.1+86c25ce733aebb4d8b1b8a62e84770ea5e972bea
Status code: 0 = OK, <0 indicates an error condition.
Assembly: ASCOM.AstrometryTools (in ASCOM.AstrometryTools.dll) Version: 3.0.0-rc.1+86c25ce733aebb4d8b1b8a62e84770ea5e972bea
C#
public static int Tpxev(
double[] v,
double[] v0,
ref double xi,
ref double eta
)VB
Public Shared Function Tpxev (
v As Double(),
v0 As Double(),
ByRef xi As Double,
ByRef eta As Double
) As IntegerParameters
- v Double
- Unit vector of target point (length 3).
- v0 Double
- Unit vector of tangent point (length 3).
- xi Double
- Returned ξ coordinate.
- eta Double
- Returned η coordinate.
Return Value
Int32Status code: 0 = OK, <0 indicates an error condition.
Exceptions
| ArgumentNullException | Thrown if any array parameter is null. |
| ArgumentException | Thrown if any array parameter has incorrect length. |