org.orekit.frames.transformations
Class TIRFProvider

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

All Implemented Interfaces:

Serializable, TransformProvider

public final class TIRFProvider
extends Object
implements TransformProvider

Terrestrial Intermediate Reference Frame 2000.

The pole motion is not considered : Pseudo Earth Fixed Frame. It handles the earth rotation angle, its parent frame is the CIRFProvider

See Also:

Serialized Form

Constructor Summary

TIRFProvider()
Simple constructor.

Method Summary

static double	getEarthRotationAngle(AbsoluteDate date) Get the Earth Rotation Angle at the current date.
static double	getEarthRotationRate() Get the Earth Rotation rate.
Transform	getTransform(AbsoluteDate date) Get the transform from CIRF 2000 at specified date.
Transform	getTransform(AbsoluteDate date, boolean computeSpinDerivatives) Get the transform from CIRF 2000 at specified date.
Transform	getTransform(AbsoluteDate date, FramesConfiguration config) Get the transform from CIRF 2000 at specified date.
Transform	getTransform(AbsoluteDate date, FramesConfiguration config, boolean computeSpinDerivatives) Get the transform from CIRF 2000 at specified date.

Methods inherited from class java.lang.Object

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

Constructor Detail

TIRFProvider

public TIRFProvider()

Simple constructor.

Method Detail

getTransform

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

Get the transform from CIRF 2000 at specified date.

The update considers the earth rotation from IERS data.

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:

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

getTransform

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

Get the transform from CIRF 2000 at specified date.

The update considers the earth rotation from IERS data.

Specified by:

getTransform in interface TransformProvider

Parameters:

date - new value of the date

config - frames configuration to use

computeSpinDerivatives - unused param

Returns:

transform at the specified date

Throws:

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

getTransform

public Transform getTransform(AbsoluteDate date)
                       throws OrekitException

Get the transform from CIRF 2000 at specified date.

The update considers the earth rotation from IERS data.

Specified by:

getTransform in interface TransformProvider

Parameters:

date - new value of the date

Returns:

transform at the specified date

Throws:

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

getTransform

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

Get the transform from CIRF 2000 at specified date.

The update considers the earth rotation from IERS data.

Specified by:

getTransform in interface TransformProvider

Parameters:

date - new value of the date

computeSpinDerivatives - unused param

Returns:

transform at the specified date

Throws:

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

getEarthRotationAngle

public static double getEarthRotationAngle(AbsoluteDate date)
                                    throws OrekitException

Get the Earth Rotation Angle at the current date.

Parameters:

date - the date

Returns:

Earth Rotation Angle at the current date in radians

Throws:

OrekitException - if nutation model cannot be computed

getEarthRotationRate

public static double getEarthRotationRate()

Get the Earth Rotation rate.

Returns:

Earth Rotation rate