GpsReceiverGetSatelliteTrackingIndexEvaluator Method (EvaluatorGroup)

Returns an evaluator that identifies the satellites that are tracked by the GPS receiver at a given date. The satellites are identified as indices into the NavigationSatellites collection.

Namespace: AGI.Foundation.Navigation
Assembly: AGI.Foundation.Navigation (in AGI.Foundation.Navigation.dll) Version: 25.1.421.0 (25.1.421.0)

Syntax

C++

Copy

public Evaluator<int[]> GetSatelliteTrackingIndexEvaluator(
	EvaluatorGroup group
)

Public Function GetSatelliteTrackingIndexEvaluator ( 
	group As EvaluatorGroup
) As Evaluator(Of Integer())

public:
Evaluator<array<int>^>^ GetSatelliteTrackingIndexEvaluator(
	EvaluatorGroup^ group
)

member GetSatelliteTrackingIndexEvaluator : 
        group : EvaluatorGroup -> Evaluator<int[]>

Parameters

group: Type: AGI.FoundationEvaluatorGroup
The group with which to associate the new evaluator. By grouping evaluators that are often evaluated at the same Julian dates, common computations can be performed only once for the entire group instead of multiple times for each evaluator.

Return Value

Type: EvaluatorInt32
An evaluator of the currently tracked GPS satellites.

Exceptions

Exception	Condition
ArgumentNullException	Thrown when group is .
ServiceNotAvailableException	Thrown when this GPS receiver's Antenna does not have the ILocationPointService or the IOrientationAxesService.

Remarks

The Earth Fixed frame is used for some computations. It is obtained from the EarthCentralBody contained in the CentralBodiesFacet instance in the CalculationContext.

Reference

GpsReceiver Class

GetSatelliteTrackingIndexEvaluator Overload

AGI.Foundation.Navigation Namespace

GpsReceiverAddLanguageSpecificTextSet("LSTA63F876_0?cpp=::|nu=.");GetSatelliteTrackingIndexEvaluator Method (EvaluatorGroup)

Parameters

Return Value

Reference

GpsReceiverGetSatelliteTrackingIndexEvaluator Method (EvaluatorGroup)