org.orekit.attitudes
Class TabulatedAttitude

java.lang.Object
  org.orekit.attitudes.TabulatedAttitude

All Implemented Interfaces:

Serializable, AttitudeLeg, AttitudeProvider

public final class TabulatedAttitude
extends Object
implements AttitudeLeg

This class implements the tabulated attitude leg.

Since:

1.1

Version:

$Id: TabulatedAttitude.java 16776 2016-10-10 13:25:34Z bignon $

Author:

Thomas Trapier

See Also:

AttitudeLeg, Serialized Form

Concurrency :

immutable

Field Summary

static int

DEFAULT_INTERP_ORDER Default number of points used for interpolation.

Constructor Summary

TabulatedAttitude(List<Attitude> inAttitudes)
Constructor with default number N of points used for interpolation.

TabulatedAttitude(List<Attitude> inAttitudes, int nbInterpolationPoints)
Constructor with number of points used for interpolation

Method Summary

Attitude	getAttitude(Orbit orbit) Compute the attitude corresponding to an orbital state.
Attitude	getAttitude(PVCoordinatesProvider pvProvider, AbsoluteDate date, Frame inFrame) Compute the attitude corresponding to an orbital state.
List<Attitude>	getAttitudes() Get the non-interpolated and rightly ordered attitudes.
double[]	getDurations() Getter for durations.
AbsoluteDateInterval	getTimeInterval() Return the time interval of validity
void	setSpinDerivativesComputation(boolean computeSpinDerivatives) Method to activate spin derivative computation.
TabulatedAttitude	setTimeInterval(AbsoluteDateInterval interval) Return a new law with the specified interval.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_INTERP_ORDER

public static final int DEFAULT_INTERP_ORDER

Default number of points used for interpolation.

See Also:

Constant Field Values

Constructor Detail

TabulatedAttitude

public TabulatedAttitude(List<Attitude> inAttitudes)
                  throws OrekitException

Constructor with default number N of points used for interpolation.

Parameters:

inAttitudes - the list of attitudes. WARNING : these attitudes must be ordered.

Throws:

OrekitException - if the number of point is too small for interpolating

TabulatedAttitude

public TabulatedAttitude(List<Attitude> inAttitudes,
                         int nbInterpolationPoints)
                  throws OrekitException

Constructor with number of points used for interpolation

Parameters:

inAttitudes - the list of attitudes. WARNING : these attitudes must be ordered.

nbInterpolationPoints - number of points used for interpolation

Throws:

OrekitException - if the number of point is too small for interpolating

Method Detail

getTimeInterval

public AbsoluteDateInterval getTimeInterval()

Return the time interval of validity

Specified by:

getTimeInterval in interface AttitudeLeg

Returns:

time interval of validity

getAttitude

public Attitude getAttitude(PVCoordinatesProvider pvProvider,
                            AbsoluteDate date,
                            Frame inFrame)
                     throws OrekitException

Compute the attitude corresponding to an orbital state.

Specified by:

getAttitude in interface AttitudeProvider

Parameters:

pvProvider - local position-velocity provider around current date

date - current date

inFrame - reference frame from which attitude is computed

Returns:

attitude attitude on the specified date and position-velocity state

Throws:

OrekitException - if attitude cannot be computed

setTimeInterval

public TabulatedAttitude setTimeInterval(AbsoluteDateInterval interval)
                                  throws OrekitException

Return a new law with the specified interval.

Parameters:

interval - new interval of validity

Returns:

new tabulated attitude law

Throws:

OrekitException - if a problem occurs during frames transformation in new first and last attitudes computations

getAttitudes

public List<Attitude> getAttitudes()

Get the non-interpolated and rightly ordered attitudes.

Returns:

the list of attitudes

getDurations

public double[] getDurations()

Getter for durations.

Returns:

the durations

getAttitude

public Attitude getAttitude(Orbit orbit)
                     throws OrekitException

Compute the attitude corresponding to an orbital state.

Specified by:

getAttitude in interface AttitudeProvider

Parameters:

orbit - current orbit

Returns:

attitude attitude on the current orbit

Throws:

OrekitException - if attitude cannot be computed

setSpinDerivativesComputation

public void setSpinDerivativesComputation(boolean computeSpinDerivatives)

Method to activate spin derivative computation.

Specified by:

setSpinDerivativesComputation in interface AttitudeProvider

Parameters:

computeSpinDerivatives - true if spin derivatives should be computed