fr.cnes.sirius.patrius.frames.transformations

Class ITRFEquinoxProvider

java.lang.Object

fr.cnes.sirius.patrius.frames.transformations.ITRFEquinoxProvider

All Implemented Interfaces:

TransformProvider, Serializable

public final class ITRFEquinoxProvider
extends Object
implements TransformProvider

International Terrestrial Reference Frame, based on old equinox conventions.

Handles pole motion effects and depends on GTODProvider, its parent frame.

Spin derivative is never computed and is either 0 or null. No analytical formula is available for spin derivative since data only provide pole correction without derivatives. Spin is also 0.

Frames configuration Pole correction is used.

Author:

Luc Maisonobe

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ITRFEquinoxProvider() Simple constructor.

Method Summary

Modifier and Type	Method and Description
Transform	getTransform(AbsoluteDate date) Get the transform from GTOD at specified date.
Transform	getTransform(AbsoluteDate date, boolean computeSpinDerivatives) Get the transform from GTOD at specified date.
Transform	getTransform(AbsoluteDate date, FramesConfiguration config) Get the transform from GTOD at specified date.
Transform	getTransform(AbsoluteDate date, FramesConfiguration config, boolean computeSpinDerivatives) Get the transform from GTOD at specified date.

Methods inherited from class java.lang.Object

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

Constructor Detail

ITRFEquinoxProvider

public ITRFEquinoxProvider()
                    throws PatriusException

Simple constructor.

Throws:

PatriusException - if EOP parameters cannot be read

Method Detail

getTransform

public Transform getTransform(AbsoluteDate date)
                       throws PatriusException

Get the transform from GTOD at specified date.

The update considers the pole motion from IERS data.

Specified by:

getTransform in interface TransformProvider

Parameters:

date - new value of the date

Returns:

transform at the specified date

Throws:

PatriusException - if the nutation model data embedded in the library cannot be read

getTransform

public Transform getTransform(AbsoluteDate date,
                              FramesConfiguration config)
                       throws PatriusException

Get the transform from GTOD at specified date.

The update considers the pole motion from IERS data.

Frames configuration Pole correction is used.

Specified by:

getTransform in interface TransformProvider

Parameters:

date - new value of the date

config - frames configuration to use

Returns:

transform at the specified date

Throws:

PatriusException - if the nutation model data embedded in the library cannot be read

getTransform

public Transform getTransform(AbsoluteDate date,
                              boolean computeSpinDerivatives)
                       throws PatriusException

Get the transform from GTOD at specified date.

The update considers the pole motion from IERS data.

Spin derivative is never computed and is either 0 or null. No analytical formula is available for spin derivative since data only provide pole correction without derivatives. Spin is also 0.

Specified by:

getTransform in interface TransformProvider

Parameters:

date - new value of the date

computeSpinDerivatives - not used

Returns:

transform at the specified date

Throws:

PatriusException - if the nutation model data embedded in the library cannot be read

getTransform

public Transform getTransform(AbsoluteDate date,
                              FramesConfiguration config,
                              boolean computeSpinDerivatives)
                       throws PatriusException

Get the transform from GTOD at specified date.

The update considers the pole motion from IERS data.

Spin derivative is never computed and is either 0 or null. No analytical formula is available for spin derivative since data only provide pole correction without derivatives. Spin is also 0.

Frames configuration Pole correction is used.

Specified by:

getTransform in interface TransformProvider

Parameters:

date - new value of the date

config - frames configuration to use

computeSpinDerivatives - not used

Returns:

transform at the specified date

Throws:

PatriusException - if the nutation model data embedded in the library cannot be read