Package org.orekit.propagation.events.functions

Class LongitudeValueCrossingFunction

java.lang.Object

org.orekit.propagation.events.functions.AbstractGeodeticEventFunction

org.orekit.propagation.events.functions.LongitudeValueCrossingFunction

All Implemented Interfaces:

EventFunction

public class LongitudeValueCrossingFunction
extends AbstractGeodeticEventFunction

Class for longitude value-crossing event function. It is negative under the critical value. It is also centered around it and bounded.

Since:

14.0

Author:

Romain Serra

Constructor Summary

Constructors

Constructor	Description
LongitudeValueCrossingFunction(BodyShape body, double criticalLongitude)	Constructor.

Method Summary

Modifier and Type	Method	Description
double	getCriticalLongitude()	Getter for critical longitude.
<T extends CalculusFieldElement<T>> T	value(FieldSpacecraftState<T> fieldState)	Evaluate Field function.
double	value(SpacecraftState state)	Evaluate function.

Methods inherited from class org.orekit.propagation.events.functions.AbstractGeodeticEventFunction

getBodyShape, transformToGeodeticPoint, transformToGeodeticPoint

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.orekit.propagation.events.functions.EventFunction

dependsOnMainVariablesOnly, dependsOnTimeOnly

Constructor Details

LongitudeValueCrossingFunction

public LongitudeValueCrossingFunction(BodyShape body,
 double criticalLongitude)

Constructor.

Parameters:

body - body

criticalLongitude - longitude for crossing

Method Details

value

public double value(SpacecraftState state)

Description copied from interface: EventFunction

Evaluate function.

Parameters:

state - spacecraft state

Returns:

value

value

public <T extends CalculusFieldElement<T>> T value(FieldSpacecraftState<T> fieldState)

Description copied from interface: EventFunction

Evaluate Field function. By default, calls the non-Field version. This is suitable for detection but not be for applications like automatic differentiation, where a proper implementation should be used instead.

Type Parameters:

T - field type

Parameters:

fieldState - spacecraft state

Returns:

value

getCriticalLongitude

public double getCriticalLongitude()

Getter for critical longitude.

Returns:

longitude