fr.cnes.sirius.patrius.attitudes.profiles

Class QuaternionPolynomialProfile

java.lang.Object

fr.cnes.sirius.patrius.attitudes.profiles.AbstractAttitudeProfile

fr.cnes.sirius.patrius.attitudes.profiles.QuaternionPolynomialProfile

All Implemented Interfaces:

AttitudeLeg, AttitudeProvider, AttitudeProfile, TimeStamped, Leg, Serializable

public class QuaternionPolynomialProfile
extends AbstractAttitudeProfile

Represents a quaternion guidance profile, calculated with polynomial functions

Since:

1.3

Version:

$Id$

Author:

Tiziana Sabatini

See Also:

Serialized Form

Concurrency :

conditionally thread-safe

Concurrency comment :

thread-safe if the attributes are thread-safe

Field Summary

Fields inherited from interface fr.cnes.sirius.patrius.attitudes.AttitudeLeg

LEG_NATURE

Constructor Summary

Constructors

Constructor and Description
QuaternionPolynomialProfile(Frame frame, AbsoluteDateInterval timeInterval, List<QuaternionPolynomialSegment> polynomials) Create a polynomial, quaternion guidance profile.
QuaternionPolynomialProfile(Frame frame, AbsoluteDateInterval timeInterval, List<QuaternionPolynomialSegment> polynomials, double spinDeltaT) Create a polynomial, quaternion guidance profile.
QuaternionPolynomialProfile(Frame frame, AbsoluteDateInterval timeInterval, List<QuaternionPolynomialSegment> polynomials, String nature) Create a polynomial, quaternion guidance profile.
QuaternionPolynomialProfile(Frame frame, AbsoluteDateInterval timeInterval, List<QuaternionPolynomialSegment> polynomials, String nature, double spinDeltaT) Create a polynomial, quaternion guidance profile.

Method Summary

Modifier and Type	Method and Description
QuaternionPolynomialProfile	copy(AbsoluteDateInterval newInterval) Creates a new leg from this one.
Attitude	getAttitude(PVCoordinatesProvider pvProv, AbsoluteDate date, Frame frame) Compute the attitude corresponding to an orbital state.
Map<AbsoluteDateInterval,double[]>	getQ0Coefficients()
Map<AbsoluteDateInterval,double[]>	getQ1Coefficients()
Map<AbsoluteDateInterval,double[]>	getQ2Coefficients()
Map<AbsoluteDateInterval,double[]>	getQ3Coefficients()
Frame	getReferenceFrame() Returns the reference frame of the polynomial functions.
void	setSpinDerivativesComputation(boolean computeSpinDerivatives) Method to activate spin derivative computation.

Methods inherited from class fr.cnes.sirius.patrius.attitudes.profiles.AbstractAttitudeProfile

checkDate, getNature, getSpinDeltaT, getTimeInterval

Methods inherited from class java.lang.Object

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

Methods inherited from interface fr.cnes.sirius.patrius.attitudes.AttitudeLeg

computeSpinByFD, computeSpinDerivativeByFD

Methods inherited from interface fr.cnes.sirius.patrius.utils.legs.Leg

contains, getDate, getEnd, toPrettyString

Methods inherited from interface fr.cnes.sirius.patrius.attitudes.AttitudeProvider

getAttitude

Constructor Detail

QuaternionPolynomialProfile

public QuaternionPolynomialProfile(Frame frame,
                                   AbsoluteDateInterval timeInterval,
                                   List<QuaternionPolynomialSegment> polynomials,
                                   String nature)

Create a polynomial, quaternion guidance profile.

Parameters:

frame - the reference frame of the polynomial functions

timeInterval - interval of validity of the guidance profile

polynomials - the list of polynomial guidance profile segments

nature - nature

QuaternionPolynomialProfile

public QuaternionPolynomialProfile(Frame frame,
                                   AbsoluteDateInterval timeInterval,
                                   List<QuaternionPolynomialSegment> polynomials)

Create a polynomial, quaternion guidance profile.

Parameters:

frame - the reference frame of the polynomial functions

timeInterval - interval of validity of the guidance profile

polynomials - the list of polynomial guidance profile segments

QuaternionPolynomialProfile

public QuaternionPolynomialProfile(Frame frame,
                                   AbsoluteDateInterval timeInterval,
                                   List<QuaternionPolynomialSegment> polynomials,
                                   String nature,
                                   double spinDeltaT)

Create a polynomial, quaternion guidance profile.

Parameters:

frame - the reference frame of the polynomial functions

timeInterval - interval of validity of the guidance profile

polynomials - the list of polynomial guidance profile segments

nature - nature

spinDeltaT - delta-t used for spin/acceleration computation by finite differences

QuaternionPolynomialProfile

public QuaternionPolynomialProfile(Frame frame,
                                   AbsoluteDateInterval timeInterval,
                                   List<QuaternionPolynomialSegment> polynomials,
                                   double spinDeltaT)

Create a polynomial, quaternion guidance profile.

Parameters:

frame - the reference frame of the polynomial functions

timeInterval - interval of validity of the guidance profile

polynomials - the list of polynomial guidance profile segments

spinDeltaT - delta-t used for spin computation by finite differences

Method Detail

getQ0Coefficients

public Map<AbsoluteDateInterval,double[]> getQ0Coefficients()

Returns:

the map containing the coefficients of the polynomial function representing q0, and their time interval of validity.

getQ1Coefficients

public Map<AbsoluteDateInterval,double[]> getQ1Coefficients()

Returns:

the map containing the coefficients of the polynomial function representing q1, and their time interval of validity.

getQ2Coefficients

public Map<AbsoluteDateInterval,double[]> getQ2Coefficients()

Returns:

the map containing the coefficients of the polynomial function representing q2, and their time interval of validity.

getQ3Coefficients

public Map<AbsoluteDateInterval,double[]> getQ3Coefficients()

Returns:

the map containing the coefficients of the polynomial function representing q3, and their time interval of validity.

getAttitude

public Attitude getAttitude(PVCoordinatesProvider pvProv,
                            AbsoluteDate date,
                            Frame frame)
                     throws PatriusException

Compute the attitude corresponding to an orbital state.

Parameters:

pvProv - local position-velocity provider around current date

date - current date

frame - reference frame from which attitude is computed

Returns:

attitude on the specified date and position-velocity state

Throws:

PatriusException - if attitude cannot be computed for provided date

setSpinDerivativesComputation

public void setSpinDerivativesComputation(boolean computeSpinDerivatives)

Method to activate spin derivative computation.

Parameters:

computeSpinDerivatives - true if spin derivatives should be computed

copy

public QuaternionPolynomialProfile copy(AbsoluteDateInterval newInterval)

Creates a new leg from this one.

Parameters:

newInterval - The time interval of the leg to create

Returns:

A new Leg valid on provided interval

getReferenceFrame

public Frame getReferenceFrame()

Returns the reference frame of the polynomial functions.

Returns:

the reference frame of the polynomial functions