fr.cnes.sirius.patrius.attitudes

Class BodyCenterGroundPointing

java.lang.Object

fr.cnes.sirius.patrius.attitudes.AbstractAttitudeLaw

fr.cnes.sirius.patrius.attitudes.GroundPointing

fr.cnes.sirius.patrius.attitudes.BodyCenterGroundPointing

All Implemented Interfaces:

AttitudeLaw, AttitudeProvider, Serializable

public class BodyCenterGroundPointing
extends GroundPointing

This class handles body center pointing attitude provider; the difference between BodyCenterPointing and this class is that the target point of the former is the body center, while that of the latter is the corresponding point on the ground.

The satellite z axis is pointing to the body frame center.

Since:

2.0

Version:

$Id: BodyCenterGroundPointing.java 18065 2017-10-02 16:42:02Z bignon $

Author:

Tiziana Sabatini

See Also:

GroundPointing, BodyCenterPointing, Serialized Form

Concurrency :

immutable

Constructor Summary

Constructors

Constructor and Description
BodyCenterGroundPointing(BodyShape shape) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
protected Vector3D	getTargetPoint(PVCoordinatesProvider pvProv, AbsoluteDate date, Frame frame) Compute the target point in specified frame.

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

getAttitude, getBodyFrame, getBodyShape, getTargetPV

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

getAttitude, getSpinDerivativesComputation, setSpinDerivativesComputation

Methods inherited from class java.lang.Object

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

Constructor Detail

BodyCenterGroundPointing

public BodyCenterGroundPointing(BodyShape shape)

Constructor. Create a BodyCenterGroundPointing attitude provider.

Parameters:

shape - a body shape

Method Detail

getTargetPoint

protected Vector3D getTargetPoint(PVCoordinatesProvider pvProv,
                      AbsoluteDate date,
                      Frame frame)
                           throws PatriusException

Description copied from class: GroundPointing

Compute the target point in specified frame.

Specified by:

getTargetPoint in class GroundPointing

Parameters:

pvProv - provider for PV coordinates

date - date at which target point is requested

frame - frame in which observed ground point should be provided

Returns:

observed ground point position in specified frame

Throws:

PatriusException - if some specific error occurs, such as no target reached