fr.cnes.sirius.patrius.forces.maneuvers
Class ManeuversSequence

java.lang.Object
  fr.cnes.sirius.patrius.forces.maneuvers.ManeuversSequence

public class ManeuversSequence
extends Object

This class handles a sequence of different maneuvers.
The maneuvers can be continue maneuvers (with constant or variable thrust), or impulse maneuvers.

Since:

1.2

Version:

$Id: ManeuversSequence.java 9374 2013-09-25 09:14:24Z houdroge $

Author:

Tiziana Sabatini

See Also:

ConstantThrustManeuver, ImpulseManeuver, VariableThrustManeuver

Concurrency :

not thread-safe

Concurrency comment :

The instances are mutable.

Constructor Summary

ManeuversSequence(double dTcontinue, double dTimpulse)
Constructor of the maneuvers sequence.

Method Summary

boolean	add(ConstantThrustManeuver maneuver) Adds a continue maneuver (with constant thrust) to the list. Always check first if the time interval of the maneuver respects the two following conditions: no superposition with any maneuver in the list; the time between the end of the previous maneuver and the start of the maneuver to add, as well as the time between the end of the maneuver to add and the start of the next maneuver, must be bigger than the threshold value.
boolean	add(ImpulseManeuver maneuver) Adds an impulse maneuver to the list. Two scenarios are possible: the maneuver to add is triggered by a detector other than DateDetector, always add the maneuver; the maneuver to add is triggered by a DateDetector, check if the date of the maneuver respects the two following conditions: no superposition with any maneuver in the list; the time between the end of the previous maneuver and the date of the maneuver to add, as well as the time between the end of the maneuver to add and the date of the next maneuver, must be bigger than the threshold value.
boolean	add(VariableThrustManeuver maneuver) Adds a continue maneuver (with variable thrust) to the list. Always check first if the time interval of the maneuver respects the two following conditions: no superposition with any maneuver in the list; the time between the end of the previous maneuver and the start of the maneuver to add, as well as the time between the end of the maneuver to add and the start of the next maneuver, must be bigger than the threshold value.
void	applyTo(NumericalPropagator propagator) Adds all the maneuvers (continue and impulse) to the propagator.
int	getSize()
boolean	remove(ConstantThrustManeuver maneuver) Remove the selected continue maneuver with constant thrust from the list. If the maneuver is not in the list, it returns false.
boolean	remove(ImpulseManeuver maneuver) Remove the selected impulse maneuver from the list. If the maneuver is not in the list, it returns false.
boolean	remove(VariableThrustManeuver maneuver) Remove the selected continue maneuver with variable thrust from the list. If the maneuver is not in the list, it returns false.

Methods inherited from class java.lang.Object

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

Constructor Detail

ManeuversSequence

public ManeuversSequence(double dTcontinue,
                         double dTimpulse)

Constructor of the maneuvers sequence.

Parameters:

dTcontinue - the minimum allowed time between a continue maneuver and the next maneuver.

dTimpulse - the minimum allowed time between an impulse maneuver and the next maneuver.

Method Detail

add

public final boolean add(ConstantThrustManeuver maneuver)

Adds a continue maneuver (with constant thrust) to the list.
Always check first if the time interval of the maneuver respects the two following conditions:

• no superposition with any maneuver in the list;
• the time between the end of the previous maneuver and the start of the maneuver to add, as well as the time between the end of the maneuver to add and the start of the next maneuver, must be bigger than the threshold value.

Parameters:

maneuver - the continue maneuver to add to the list

Returns:

true if the maneuver has been added, false otherwise (the conditions have not been respected)

remove

public final boolean remove(ConstantThrustManeuver maneuver)

Remove the selected continue maneuver with constant thrust from the list.
If the maneuver is not in the list, it returns false.

Parameters:

maneuver - the maneuver to remove from the list

Returns:

true if the maneuver has been removed, false otherwise

add

public final boolean add(VariableThrustManeuver maneuver)

Adds a continue maneuver (with variable thrust) to the list.
Always check first if the time interval of the maneuver respects the two following conditions:

• no superposition with any maneuver in the list;
• the time between the end of the previous maneuver and the start of the maneuver to add, as well as the time between the end of the maneuver to add and the start of the next maneuver, must be bigger than the threshold value.

Parameters:

maneuver - the continue maneuver to add to the list

Returns:

true if the maneuver has been added, false otherwise (the conditions have not been respected)

remove

public final boolean remove(VariableThrustManeuver maneuver)

Remove the selected continue maneuver with variable thrust from the list.
If the maneuver is not in the list, it returns false.

Parameters:

maneuver - the maneuver to remove from the list

Returns:

true if the maneuver has been removed, false otherwise

add

public final boolean add(ImpulseManeuver maneuver)

Adds an impulse maneuver to the list.
Two scenarios are possible:

• the maneuver to add is triggered by a detector other than DateDetector, always add the maneuver;
• the maneuver to add is triggered by a DateDetector, check if the date of the maneuver respects the two following conditions:
  • no superposition with any maneuver in the list;
  • the time between the end of the previous maneuver and the date of the maneuver to add, as well as the time between the end of the maneuver to add and the date of the next maneuver, must be bigger than the threshold value.

Parameters:

maneuver - the impulse maneuver to add to the list

Returns:

true if the maneuver has been added, false otherwise (the conditions have not been respected)

remove

public final boolean remove(ImpulseManeuver maneuver)

Remove the selected impulse maneuver from the list.
If the maneuver is not in the list, it returns false.

Parameters:

maneuver - the maneuver to remove from the list

Returns:

true if the maneuver has been removed, false otherwise

getSize

public final int getSize()

Returns:

the number of maneuvers in the list.

applyTo

public final void applyTo(NumericalPropagator propagator)

Adds all the maneuvers (continue and impulse) to the propagator.

Parameters:

propagator - the propagator to which all the maneuvers must be applied