Description

Real time attitude interface.

Public Methods

AddCBFQuaternion	Adds attitude data based on a time-ordered set of quaternions interpreted relative to CBF.
AddECIYPR	Adds attitude data based on a time-ordered set of yaw, pitch, roll angles in the J2000 ECI coordinate system.
AddEuler	Adds attitude data based on a time-ordered set of Euler angles.
AddQuaternion	Adds attitude data based on a time-ordered set of quaternions.
AddYPR	Adds attitude data based on a time-ordered set of yaw, pitch and roll angles.
ClearAll	Clear attitude data created using AddXXX commands

Public Properties

BlockFactor	A block factor used to help size allocated memory used to hold the history
DataReference	Returns a reference attitude profile for incoming attitude data.
Duration	Get look ahead/look behind duration.
LookAheadMethod	Look ahead method can be extrapolate or hold.

Interfaces

Implemented Interface
IAgVeAttitude

CoClasses that Implement IAgVeAttitudeRealTime

Name
AgVeAttitudeRealTime

Example

Add attitude data based on a time-ordered set of quaternions interpreted relative to CBF

[C#]

satellite.SetAttitudeType(AgEVeAttitude.eAttitudeRealTime);
IAgVeAttitudeRealTime realtime = satellite.Attitude as IAgVeAttitudeRealTime;

for (int i = 0; i <= cpfQuaternion.GetUpperBound(0); i++)
{
    realtime.AddCBFQuaternion(
        cpfQuaternion.GetValue(i, 0),
        (double)cpfQuaternion.GetValue(i, 1),
        (double)cpfQuaternion.GetValue(i, 2),
        (double)cpfQuaternion.GetValue(i, 3),
        (double)cpfQuaternion.GetValue(i, 4));
}

Configure real-time attitude

[C#]

// set attitude type to real time
satellite.SetAttitudeType(AgEVeAttitude.eAttitudeRealTime);
IAgVeAttitudeRealTime realtime = satellite.Attitude as IAgVeAttitudeRealTime;

// Set our Attitude Look Ahead method to Extrapolate
realtime.LookAheadMethod = AgEVeLookAheadMethod.eExtrapolate;

// Duration
IAgVeDuration duration = realtime.Duration;
duration.LookAhead = 1600.0;
duration.LookBehind = 1600.0;

// BlockFactor
realtime.BlockFactor = 40;
realtime.DataReference.SetProfileType(AgEVeProfile.eProfileInertiallyFixed);

Add attitude data based on a time-ordered set of quaternions interpreted relative to CBF

[Visual Basic .NET]

satellite.SetAttitudeType(AgEVeAttitude.eAttitudeRealTime)
Dim realtime As IAgVeAttitudeRealTime = TryCast(satellite.Attitude, IAgVeAttitudeRealTime)

Dim i As Integer = 0
While i <= cpfQuaternion.GetUpperBound(0)
	realtime.AddCBFQuaternion(cpfQuaternion.GetValue(i, 0), DirectCast(cpfQuaternion.GetValue(i, 1), Double), DirectCast(cpfQuaternion.GetValue(i, 2), Double), DirectCast(cpfQuaternion.GetValue(i, 3), Double), DirectCast(cpfQuaternion.GetValue(i, 4), Double))
	System.Math.Max(System.Threading.Interlocked.Increment(i),i - 1)
End While

Configure real-time attitude

[Visual Basic .NET]

' set attitude type to real time
satellite.SetAttitudeType(AgEVeAttitude.eAttitudeRealTime)
Dim realtime As IAgVeAttitudeRealTime = TryCast(satellite.Attitude, IAgVeAttitudeRealTime)

' Set our Attitude Look Ahead method to Extrapolate
realtime.LookAheadMethod = AgEVeLookAheadMethod.eExtrapolate

' Duration
Dim duration As IAgVeDuration = realtime.Duration
duration.LookAhead = 1600
duration.LookBehind = 1600

' BlockFactor
realtime.BlockFactor = 40
realtime.DataReference.SetProfileType(AgEVeProfile.eProfileInertiallyFixed)

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IAgVeAttitudeRealTime Interface