fr.cnes.sirius.patrius.tools.ephemerisComparator
Class QuaternionDPFacade

java.lang.Object
  fr.cnes.sirius.patrius.tools.ephemerisComparator.QuaternionDPFacade

All Implemented Interfaces:

DeviationProvider

public final class QuaternionDPFacade
extends Object
implements DeviationProvider

This class is a facade for the use of quaternions.

Since:

1.0

Version:

$Id: QuaternionDPFacade.java 12495 2015-03-05 14:43:16Z maggiorani $

Author:

Philippe Pavero

See Also:

DeviationProvider

Concurrency :

immutable

Method Summary

static QuaternionDPFacade	buildQuaternionDPFacade(double[] data) factory method.
double	computeDeviationTo(boolean absolute, DeviationProvider obj, boolean positive) computes the deviation in angle between the stored rotation and the given one.
Quaternion	getQuaternion()

Methods inherited from class java.lang.Object

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

Method Detail

buildQuaternionDPFacade

public static QuaternionDPFacade buildQuaternionDPFacade(double[] data)

factory method.

Parameters:

data - describe the quaternion. Can be either :

• the 4 components of a quaternion
• a 3 dimension vector. In this case, a pure quaternion is created

Returns:

a QuaternionDPFacade instance

Since:

1.0

computeDeviationTo

public double computeDeviationTo(boolean absolute,
                                 DeviationProvider obj,
                                 boolean positive)

computes the deviation in angle between the stored rotation and the given one.

Specified by:

computeDeviationTo in interface DeviationProvider

Parameters:

absolute - absolute or relative deviation

obj - the DeviationProvider that should be a RotationDPFacade

positive - true if absolute value of deviations, false otherwise

Returns:

the deviation angle between the two values.

Throws:

EphemerisComparatorRuntimeException - if the DeviationProvider is not of the correct type

See Also:

DeviationProvider.computeDeviationTo(boolean, DeviationProvider, boolean)

getQuaternion

public Quaternion getQuaternion()

Returns:

the quaternion