Description

Determines time of global minimum or maximum of specified scalar calculation. Determination is performed within interval list using Sampling and Convergence parameters.

Object Model

Public Properties

Calculation	The scalar calculation.
Convergence	A Convergence definition, which uses time tolerance to determine when time of extremum is found.
CustomTimeLimits	A custom interval list or a single interval. By default it is set to overall availability of host object. This determines time limits within which global minimum or maximum is sought. The time limits will be used if UseCustomTimeLimits is set to true.
ExtremumType	The extremum type (either minimum or maximum) for the time instant.
Sampling	A Sampling definition, which can use a fixed step, relative tolerance or curvature tolerance. Relative tolerance uses a combination of relative and absolute changes in scalar values between samples. Curvature tolerance also uses changes in slope between samples.
SaveDataOption	Determines if computed time of extremum is saved/loaded, otherwise it is recomputed on load if necessary.
UseCustomTimeLimits	Specify whether to use specified custom interval list (see CustomTimeLimits).

Example

Create and configure extremum event.

[C#] Copy Code

IAgCrdnEvent timeEvent = provider.Events.Factory.CreateEventExtremum("MyEventExtremum", "MyDescription"); 


IAgCrdnEventExtremum asExtremum = timeEvent as IAgCrdnEventExtremum; 


 

// For instance, time at highest altitude 


asExtremum.Calculation = provider.CalcScalars["GroundTrajectory.Detic.LLA.Altitude"]; 


asExtremum.ExtremumType = AgECrdnExtremumConstants.eCrdnExtremumMaximum; 


 

IAgCrdnEventFindOccurrenceResult occurrence = timeEvent.FindOccurrence(); 


if (occurrence.IsValid) 


{ 

    Console.WriteLine("Event occurred at: " + occurrence.Epoch); 


}

Create and configure extremum event.

[Visual Basic .NET] Copy Code

Dim timeEvent As
IAgCrdnEvent =
provider.Events.Factory.CreateEventExtremum("MyEventExtremum", "MyDescription")

Dim asExtremum As IAgCrdnEventExtremum = TryCast(timeEvent,
IAgCrdnEventExtremum)



' For instance, time at highest
altitude

asExtremum.Calculation = provider.CalcScalars("GroundTrajectory.Detic.LLA.Altitude")

asExtremum.ExtremumType =
AgECrdnExtremumConstants.eCrdnExtremumMaximum



Dim occurrence As IAgCrdnEventFindOccurrenceResult =
timeEvent.FindOccurrence()

If occurrence.IsValid Then

    Console.WriteLine("Event occurred at: " + occurrence.Epoch)

End If

CoClasses that Implement IAgCrdnEventExtremum

Name
AgCrdnEventExtremum

AGI STK VGT 11	Send comments on this topic.
IAgCrdnEventExtremum Interface