org.orekit.rugged.los

Interface TimeIndependentLOSTransform

All Superinterfaces:

ParametricModel

All Known Implementing Classes:

FixedRotation

public interface TimeIndependentLOSTransform
extends ParametricModel

Interface for lines-of-sight tranforms that do not depend on time.

Author:

Luc Maisonobe

See Also:

LOSBuilder

Method Summary

Methods

Modifier and Type	Method and Description
FieldVector3D<DerivativeStructure>	transformLOS(int index, FieldVector3D<DerivativeStructure> los) Transform a line-of-sight and its partial derivatives.
Vector3D	transformLOS(int i, Vector3D los) Transform a line-of-sight.

Methods inherited from interface org.orekit.rugged.utils.ParametricModel

getEstimatedParameters, getNbEstimatedParameters, setEstimatedParameters

Method Detail

transformLOS

Vector3D transformLOS(int i,
                    Vector3D los)

Transform a line-of-sight.

Parameters:

i - los pixel index

los - line-of-sight to transform

Returns:

transformed line-of-sight

transformLOS

FieldVector3D<DerivativeStructure> transformLOS(int index,
                                              FieldVector3D<DerivativeStructure> los)

Transform a line-of-sight and its partial derivatives.

This method is used for LOS calibration purposes. It allows to compute the Jacobian matrix of the LOS with respect to the parameters, which are typically polynomials coefficients representing rotation angles. These polynomials can be used for example to model thermo-elastic effects.

Note that in order for the partial derivatives to be properly set up, the setEstimatedParameters must have been called at least once before this method and its start parameter will be used to ensure the partial derivatives are ordered in the same way in the returned vector as they were in the set parameters.

Parameters:

index - los pixel index

los - line-of-sight to transform

Returns:

line of sight, and its first partial derivatives with respect to the parameters