Description

Returns an array of track ids with a bool value indicating if it's visible to the specified object.

Syntax

[Visual Basic .NET]
Public Function ComputeTracks( _ ByVal Mode As AgEMtoVisibilityMode, _ ByRef TrackIds As System.Array, _ ByVal Time As System.Object _ ) As System.Array

[Visual Basic .NET]

Public Function ComputeTracks( _
   ByVal Mode As AgEMtoVisibilityMode, _
   ByRef TrackIds As System.Array, _
   ByVal Time As System.Object _
) As System.Array

[C#]
public System.Array ComputeTracks( AgEMtoVisibilityMode Mode, ref System.Array TrackIds, System.Object Time );

[C#]

public System.Array ComputeTracks(
   AgEMtoVisibilityMode Mode, 
   ref System.Array TrackIds, 
   System.Object Time
);

[Managed C++]
public: System::Array ComputeTracks( AgEMtoVisibilityMode Mode, System::Array ^^ TrackIds, VARIANT Time );

[Managed C++]

public: System::Array ComputeTracks(
   AgEMtoVisibilityMode Mode, 
   System::Array ^^ TrackIds, 
   VARIANT Time
);

[Java]
public Object[] computeTracks( AgEMtoVisibilityMode Mode, Object[] TrackIds, Variant Time );

[Java]

public Object[] computeTracks(
   AgEMtoVisibilityMode Mode, 
   Object[] TrackIds, 
   Variant Time
);

[Unmanaged C++]
public: HRESULT ComputeTracks( AgEMtoVisibilityMode Mode, SAFEARRAY ** TrackIds, VARIANT Time, SAFEARRAY ** Array );

[Unmanaged C++]

public: HRESULT ComputeTracks(
   AgEMtoVisibilityMode Mode, 
   SAFEARRAY ** TrackIds, 
   VARIANT Time, 
   SAFEARRAY ** Array
);

Parameters

Mode

Member	Value	Description
eVisibilityModeEach	2	Returns the Track_id and 1 or 0 for every track; where 1 indicates the track is visible and 0 indicates it is not.
eVisibilityModeEachVisible	3	Returns the Track_id and 1 only for those tracks having visibility. If all objects are invisible then the message 'No Visibility' is returned.
eVisibilityModeEachNotVisible	4	Returns the Track_id and 0 for those tracks not having visibility. If all objects are visible then the message 'Complete Visibility' is returned.

TrackIds

Time

Example

Which tracks of the specified subset of tracks are visible from the other STK Object at the specified time?

[C#] Copy Code

IAgMtoAnalysisVisibility mtoVisibility = mto.Analysis.Visibility; 

mtoVisibility.UseTerrain = false; // Set to true to use terrain instead of line of sight. 

mtoVisibility.Entirety = AgEMtoEntirety.eMtoEntiretyPartial; // Only applies if MTO is static (i.e. non time dependent). 

 

Array tracksOfInterest = new object[] 

                         { 

                             1, 2, 7 

                         }; 

 

mtoVisibility.StkObjectPath = "Satellite/J2Satellite"; 

 

// ComputeTracks expects as the second parameter a one dimensional array of mto track ids 

// ComputeTracks returns a two dimensional array whose values are track id and visiblity 

Array trackVisibilityArray = mtoVisibility.ComputeTracks(AgEMtoVisibilityMode.eVisibilityModeEach, ref tracksOfInterest, "1 Jan 2012 12:05:00.000"); 

 

// Output results 

Console.WriteLine("ComputeTracks:"); 

for (int i = 0; i < trackVisibilityArray.GetLength(0); ++i) 

{ 

    Console.WriteLine("   Track {0} visibility: {1}", 

        Convert.ToInt32(trackVisibilityArray.GetValue(i, 0)), 

        Convert.ToInt32(trackVisibilityArray.GetValue(i, 1))); 

}

Which tracks of the specified subset of tracks are visible from the other STK Object at the specified time?

[Visual Basic .NET] Copy Code

Dim mtoVisibility As IAgMtoAnalysisVisibility = mto.Analysis.Visibility
 mtoVisibility.UseTerrain = False
' Set to true to use terrain instead of line of sight.
 mtoVisibility.Entirety = AgEMtoEntirety.eMtoEntiretyPartial
' Only applies if MTO is static (i.e. non time dependent).
Dim trackVisibilityArray As Array = mtoVisibility.ComputeTracks(AgEMtoVisibilityMode.eVisibilityModeEach, tracksOfInterest, "1 Jan 2012 12:05:00.000")

AGI STK Objects 11	Send comments on this topic.
ComputeTracks Method (IAgMtoAnalysisVisibility)
See Also Example

Description

Syntax

Parameters

Example

See Also