Package org.orekit.attitudes
Class LofOffsetPointing
- java.lang.Object
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- org.orekit.attitudes.GroundPointing
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- org.orekit.attitudes.LofOffsetPointing
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- All Implemented Interfaces:
Serializable
,AttitudeProvider
public class LofOffsetPointing extends GroundPointing
This class provides a default attitude provider.The attitude pointing law is defined by an attitude provider and the satellite axis vector chosen for pointing.
- Author:
- Véronique Pommier-Maurussane
- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description LofOffsetPointing(Frame inertialFrame, BodyShape shape, AttitudeProvider attLaw, org.hipparchus.geometry.euclidean.threed.Vector3D satPointingVector)
Creates new instance.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description <T extends org.hipparchus.RealFieldElement<T>>
FieldAttitude<T>getAttitude(FieldPVCoordinatesProvider<T> pvProv, FieldAbsoluteDate<T> date, Frame frame)
Compute the attitude corresponding to an orbital state.Attitude
getAttitude(PVCoordinatesProvider pvProv, AbsoluteDate date, Frame frame)
Compute the attitude corresponding to an orbital state.<T extends org.hipparchus.RealFieldElement<T>>
TimeStampedFieldPVCoordinates<T>getTargetPV(FieldPVCoordinatesProvider<T> pvProv, FieldAbsoluteDate<T> date, Frame frame)
Compute the target point position/velocity in specified frame.TimeStampedPVCoordinates
getTargetPV(PVCoordinatesProvider pvProv, AbsoluteDate date, Frame frame)
Compute the target point position/velocity in specified frame.-
Methods inherited from class org.orekit.attitudes.GroundPointing
getBodyFrame
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Constructor Detail
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LofOffsetPointing
public LofOffsetPointing(Frame inertialFrame, BodyShape shape, AttitudeProvider attLaw, org.hipparchus.geometry.euclidean.threed.Vector3D satPointingVector)
Creates new instance.- Parameters:
inertialFrame
- frame in which orbital velocities are computedshape
- Body shapeattLaw
- Attitude lawsatPointingVector
- satellite vector defining the pointing direction- Since:
- 7.1
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Method Detail
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getAttitude
public Attitude getAttitude(PVCoordinatesProvider pvProv, AbsoluteDate date, Frame frame)
Compute the attitude corresponding to an orbital state.- Specified by:
getAttitude
in interfaceAttitudeProvider
- Overrides:
getAttitude
in classGroundPointing
- Parameters:
pvProv
- local position-velocity provider around current datedate
- current dateframe
- reference frame from which attitude is computed- Returns:
- attitude attitude on the specified date and position-velocity state
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getAttitude
public <T extends org.hipparchus.RealFieldElement<T>> FieldAttitude<T> getAttitude(FieldPVCoordinatesProvider<T> pvProv, FieldAbsoluteDate<T> date, Frame frame)
Compute the attitude corresponding to an orbital state.- Specified by:
getAttitude
in interfaceAttitudeProvider
- Overrides:
getAttitude
in classGroundPointing
- Type Parameters:
T
- type of the field elements- Parameters:
pvProv
- local position-velocity provider around current datedate
- current dateframe
- reference frame from which attitude is computed- Returns:
- attitude attitude on the specified date and position-velocity state
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getTargetPV
public TimeStampedPVCoordinates getTargetPV(PVCoordinatesProvider pvProv, AbsoluteDate date, Frame frame)
Compute the target point position/velocity in specified frame.This method is
public
only to allow users to subclass this abstract class from other packages. It is not intended to be used directly.- Specified by:
getTargetPV
in classGroundPointing
- Parameters:
pvProv
- provider for PV coordinatesdate
- date at which target point is requestedframe
- frame in which observed ground point should be provided- Returns:
- observed ground point position (element 0) and velocity (at index 1) in specified frame
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getTargetPV
public <T extends org.hipparchus.RealFieldElement<T>> TimeStampedFieldPVCoordinates<T> getTargetPV(FieldPVCoordinatesProvider<T> pvProv, FieldAbsoluteDate<T> date, Frame frame)
Compute the target point position/velocity in specified frame.- Specified by:
getTargetPV
in classGroundPointing
- Type Parameters:
T
- type of the fiels elements- Parameters:
pvProv
- provider for PV coordinatesdate
- date at which target point is requestedframe
- frame in which observed ground point should be provided- Returns:
- observed ground point position (element 0) and velocity (at index 1) in specified frame
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