org.orekit.frames.transformations
Class MODProvider

java.lang.Object
  org.orekit.frames.transformations.MODProvider

All Implemented Interfaces:

Serializable, TransformProvider

public final class MODProvider
extends Object
implements TransformProvider

Mean Equator, Mean Equinox Frame.

This frame handles precession effects according to the IAU-76 model (Lieske).

Its parent frame is the GCRF frame.

It is sometimes called Mean of Date (MoD) frame.

Author:

Pascal Parraud

See Also:

Serialized Form

Constructor Summary

MODProvider()
Simple constructor.

Method Summary

double[]	getEulerAngles(AbsoluteDate date) Compute Euler angles (3, 2, 3) of MOD => EME2000 transformation and their derivatives with respect to time.
Transform	getTransform(AbsoluteDate date) Get the transfrom from parent frame.
Transform	getTransform(AbsoluteDate date, boolean computeSpinDerivatives) Get the transfrom from parent frame.
Transform	getTransform(AbsoluteDate date, FramesConfiguration config) Get the transfrom from parent frame.
Transform	getTransform(AbsoluteDate date, FramesConfiguration config, boolean computeSpinDerivatives) Get the transfrom from parent frame.

Methods inherited from class java.lang.Object

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

Constructor Detail

MODProvider

public MODProvider()

Simple constructor.

Method Detail

getTransform

public Transform getTransform(AbsoluteDate date,
                              FramesConfiguration config)

Get the transfrom from parent frame.

The update considers the precession effects.

Specified by:

getTransform in interface TransformProvider

Parameters:

date - new value of the date

config - frames configuration to use

Returns:

transform at the specified date

getTransform

public Transform getTransform(AbsoluteDate date)
                       throws OrekitException

Get the transfrom from parent frame.

The update considers the precession effects.

Specified by:

getTransform in interface TransformProvider

Parameters:

date - new value of the date

Returns:

transform at the specified date

Throws:

OrekitException - if the default configuration cannot be retrieved

getTransform

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

Get the transfrom from parent frame.

The update considers the precession effects.

Specified by:

getTransform in interface TransformProvider

Parameters:

date - new value of the date

computeSpinDerivatives - not used

Returns:

transform at the specified date

Throws:

OrekitException - if the default configuration cannot be retrieved

getTransform

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

Get the transfrom from parent frame.

The update considers the precession effects.

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

getEulerAngles

public double[] getEulerAngles(AbsoluteDate date)

Compute Euler angles (3, 2, 3) of MOD => EME2000 transformation and their derivatives with respect to time.

Parameters:

date - a date

Returns:

Euler angles (3, 2, 3) of MOD => EME2000 transformation and their derivatives with respect to time