org.orekit.forces.maneuvers.trigger

Class AbstractManeuverTriggers

java.lang.Object

org.orekit.forces.maneuvers.trigger.AbstractManeuverTriggers

All Implemented Interfaces:

ManeuverTriggers

Direct Known Subclasses:

IntervalEventTrigger, StartStopEventsTrigger

public abstract class AbstractManeuverTriggers
extends Object
implements ManeuverTriggers

Base class for triggers.

Since:

11.1

Author:

Luc Maisonobe

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractManeuverTriggers() Simple constructor.

Method Summary

Modifier and Type	Method and Description
<T extends CalculusFieldElement<T>> void	addResetter(Field<T> field, FieldManeuverTriggersResetter<T> resetter) Add a resetter.
void	addResetter(ManeuverTriggersResetter resetter) Add a resetter.
protected <T extends CalculusFieldElement<T>> FieldSpacecraftState<T>	applyResetters(FieldSpacecraftState<T> state) Apply resetters.
protected SpacecraftState	applyResetters(SpacecraftState state) Apply resetters.
TimeSpanMap<Boolean>	getFirings() Get the firings detected during last propagation.
<T extends CalculusFieldElement<T>> void	init(FieldSpacecraftState<T> initialState, FieldAbsoluteDate<T> target) Initialization method called at propagation start.
void	init(SpacecraftState initialState, AbsoluteDate target) Initialization method called at propagation start.
protected <T extends CalculusFieldElement<T>> void	initializeResetters(FieldSpacecraftState<T> initialState, FieldAbsoluteDate<T> target) Initialize resetters.
protected void	initializeResetters(SpacecraftState initialState, AbsoluteDate target) Initialize resetters.
boolean	isFiring(AbsoluteDate date, double[] parameters) Find out if the maneuver is firing or not.
<S extends CalculusFieldElement<S>> boolean	isFiring(FieldAbsoluteDate<S> date, S[] parameters) Find out if the maneuver is firing or not.
protected abstract boolean	isFiringOnInitialState(SpacecraftState initialState, boolean isForward) Method to check if the thruster is firing on initialization.
protected <T extends CalculusFieldElement<T>> void	notifyResetters(FieldSpacecraftState<T> state, boolean start) Notify resetters.
protected void	notifyResetters(SpacecraftState state, boolean start) Notify resetters.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.orekit.forces.maneuvers.trigger.ManeuverTriggers

getEventsDetectors, getFieldEventsDetectors, getName, getParametersDrivers

Constructor Detail

AbstractManeuverTriggers

protected AbstractManeuverTriggers()

Simple constructor.

Method Detail

init

public void init(SpacecraftState initialState,
                 AbsoluteDate target)

Initialization method called at propagation start.

The default implementation does nothing.

Specified by:

init in interface ManeuverTriggers

Parameters:

initialState - initial spacecraft state (at the start of propagation).

target - date of propagation. Not equal to initialState.getDate().

init

public <T extends CalculusFieldElement<T>> void init(FieldSpacecraftState<T> initialState,
                                                     FieldAbsoluteDate<T> target)

Initialization method called at propagation start.

The default implementation does nothing.

Specified by:

init in interface ManeuverTriggers

Type Parameters:

T - type of the elements

Parameters:

initialState - initial spacecraft state (at the start of propagation).

target - date of propagation. Not equal to initialState.getDate().

isFiringOnInitialState

protected abstract boolean isFiringOnInitialState(SpacecraftState initialState,
                                                  boolean isForward)

Method to check if the thruster is firing on initialization. can be called by sub classes

Parameters:

initialState - initial spacecraft state

isForward - if true, propagation will be in the forward direction

Returns:

true if firing in propagation direction

isFiring

public boolean isFiring(AbsoluteDate date,
                        double[] parameters)

Find out if the maneuver is firing or not.

Specified by:

isFiring in interface ManeuverTriggers

Parameters:

date - current date

parameters - maneuver triggers parameters

Returns:

true if the maneuver is firing, false otherwise

isFiring

public <S extends CalculusFieldElement<S>> boolean isFiring(FieldAbsoluteDate<S> date,
                                                            S[] parameters)

Find out if the maneuver is firing or not.

Specified by:

isFiring in interface ManeuverTriggers

Type Parameters:

S - type of the field elements

Parameters:

date - current date

parameters - maneuver triggers parameters

Returns:

true if the maneuver is firing, false otherwise

getFirings

public TimeSpanMap<Boolean> getFirings()

Get the firings detected during last propagation.

Returns:

firings detected during last propagation

addResetter

public void addResetter(ManeuverTriggersResetter resetter)

Add a resetter.

Parameters:

resetter - resetter to add

addResetter

public <T extends CalculusFieldElement<T>> void addResetter(Field<T> field,
                                                            FieldManeuverTriggersResetter<T> resetter)

Add a resetter.

Type Parameters:

T - type of the field elements

Parameters:

field - field to which the state belongs

resetter - resetter to add

initializeResetters

protected void initializeResetters(SpacecraftState initialState,
                                   AbsoluteDate target)

Initialize resetters.

Parameters:

initialState - initial state

target - target date for the propagation

notifyResetters

protected void notifyResetters(SpacecraftState state,
                               boolean start)

Notify resetters.

Parameters:

state - spacecraft state at trigger date (before applying the maneuver)

start - if true, the trigger is the start of the maneuver

applyResetters

protected SpacecraftState applyResetters(SpacecraftState state)

Apply resetters.

Parameters:

state - spacecraft state at trigger date

Returns:

reset state

initializeResetters

protected <T extends CalculusFieldElement<T>> void initializeResetters(FieldSpacecraftState<T> initialState,
                                                                       FieldAbsoluteDate<T> target)

Initialize resetters.

Type Parameters:

T - type of the field elements

Parameters:

initialState - initial state

target - target date for the propagation

notifyResetters

protected <T extends CalculusFieldElement<T>> void notifyResetters(FieldSpacecraftState<T> state,
                                                                   boolean start)

Notify resetters.

Type Parameters:

T - type of the field elements

Parameters:

state - spacecraft state at trigger date (before applying the maneuver)

start - if true, the trigger is the start of the maneuver

applyResetters

protected <T extends CalculusFieldElement<T>> FieldSpacecraftState<T> applyResetters(FieldSpacecraftState<T> state)

Apply resetters.

Type Parameters:

T - type of the field elements

Parameters:

state - spacecraft state at trigger date

Returns:

reset state