fr.cnes.sirius.patrius.attitudes

Class BodyCenterPointing

java.lang.Object

fr.cnes.sirius.patrius.attitudes.AbstractAttitudeLaw

fr.cnes.sirius.patrius.attitudes.BodyCenterPointing

All Implemented Interfaces:

AttitudeLaw, AttitudeProvider, Serializable

public class BodyCenterPointing
extends AbstractAttitudeLaw

This class handles body center pointing attitude provider.

This class represents the attitude provider where the satellite z axis is pointing to the body frame center.

The object BodyCenterPointing is guaranteed to be immutable.

Author:

Véronique Pommier-Maurussane

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
BodyCenterPointing() Creates new instance.
BodyCenterPointing(PVCoordinatesProvider bodyCenter) Creates new instance.
BodyCenterPointing(PVCoordinatesProvider bodyCenter, boolean computeKeplerianJerk) Creates new instance.

Method Summary

Modifier and Type	Method and Description
Attitude	getAttitude(PVCoordinatesProvider pvProv, AbsoluteDate date, Frame frame) Compute the attitude corresponding to an orbital state.

Methods inherited from class fr.cnes.sirius.patrius.attitudes.AbstractAttitudeLaw

getSpinDerivativesComputation, setSpinDerivativesComputation

Methods inherited from class java.lang.Object

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

Methods inherited from interface fr.cnes.sirius.patrius.attitudes.AttitudeProvider

computeSpinByFD, computeSpinDerivativeByFD, getAttitude

Constructor Detail

BodyCenterPointing

public BodyCenterPointing(PVCoordinatesProvider bodyCenter)

Creates new instance.

Parameters:

bodyCenter - This PVCoordinatesProvider's frame is the pivot in the transformation from an actual frame to the local orbital frame.

BodyCenterPointing

public BodyCenterPointing(PVCoordinatesProvider bodyCenter,
                          boolean computeKeplerianJerk)

Creates new instance.

Parameters:

bodyCenter - This PVCoordinatesProvider's frame is the pivot in the transformation from an actual frame to the local orbital frame.

computeKeplerianJerk - This boolean indicates if the keplerian jerk is to be computed in the getAtttiude method or if it has to be zero regardless of the acceleration value

BodyCenterPointing

public BodyCenterPointing()

Creates new instance.

The GCRF frame is used as pivot in the transformation from an actual frame to the local orbital frame.

Method Detail

getAttitude

public Attitude getAttitude(PVCoordinatesProvider pvProv,
                            AbsoluteDate date,
                            Frame frame)
                     throws PatriusException

Compute the attitude corresponding to an orbital state.

Parameters:

pvProv - local position-velocity provider around current date

date - current date

frame - reference frame from which attitude is computed

Returns:

attitude on the specified date and position-velocity state

Throws:

PatriusException - if attitude cannot be computed for provided date