org.orekit.propagation.integration

Class AbstractGradientConverter

java.lang.Object

org.orekit.propagation.integration.AbstractGradientConverter

Direct Known Subclasses:

AbstractAnalyticalGradientConverter, ModifierGradientConverter

public abstract class AbstractGradientConverter
extends Object

Converter for states and parameters arrays.

Since:

10.2

Author:

Luc Maisonobe, Bryan Cazabonne

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractGradientConverter(int freeStateParameters) Simple constructor.

Method Summary

Modifier and Type	Method and Description
protected FieldRotation<Gradient>	extend(FieldRotation<Gradient> original, int freeParameters) Add zero derivatives.
protected FieldVector3D<Gradient>	extend(FieldVector3D<Gradient> original, int freeParameters) Add zero derivatives.
protected Gradient	extend(Gradient original, int freeParameters) Add zero derivatives.
int	getFreeStateParameters() Get the number of free state parameters.
Gradient[]	getParameters(FieldSpacecraftState<Gradient> state, ParametersDriversProvider parametricModel) Get the parametric model parameters.
FieldSpacecraftState<Gradient>	getState(ParametersDriversProvider parametricModel) Get the state with the number of parameters consistent with parametric model.
protected void	initStates(FieldSpacecraftState<Gradient> zeroParametersState) Initialize first state with 0 parameters.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractGradientConverter

protected AbstractGradientConverter(int freeStateParameters)

Simple constructor.

Parameters:

freeStateParameters - number of free parameters

Method Detail

getFreeStateParameters

public int getFreeStateParameters()

Get the number of free state parameters.

Returns:

number of free state parameters

initStates

protected void initStates(FieldSpacecraftState<Gradient> zeroParametersState)

Initialize first state with 0 parameters.

Parameters:

zeroParametersState - state with zero parameters

Since:

11.2

extend

protected Gradient extend(Gradient original,
                          int freeParameters)

Add zero derivatives.

Parameters:

original - original scalar

freeParameters - total number of free parameters in the gradient

Returns:

extended scalar

extend

protected FieldVector3D<Gradient> extend(FieldVector3D<Gradient> original,
                                         int freeParameters)

Add zero derivatives.

Parameters:

original - original vector

freeParameters - total number of free parameters in the gradient

Returns:

extended vector

extend

protected FieldRotation<Gradient> extend(FieldRotation<Gradient> original,
                                         int freeParameters)

Add zero derivatives.

Parameters:

original - original rotation

freeParameters - total number of free parameters in the gradient

Returns:

extended rotation

getState

public FieldSpacecraftState<Gradient> getState(ParametersDriversProvider parametricModel)

Get the state with the number of parameters consistent with parametric model.

Parameters:

parametricModel - parametric model

Returns:

state with the number of parameters consistent with parametric model

getParameters

public Gradient[] getParameters(FieldSpacecraftState<Gradient> state,
                                ParametersDriversProvider parametricModel)

Get the parametric model parameters.

Parameters:

state - state as returned by getState(parametricModel)

parametricModel - parametric model associated with the parameters

Returns:

parametric model parameters