Class NumericalAttitudeDataServer<A extends IAttitude>

java.lang.Object

gaiasky.util.gaia.BaseAttitudeDataServer<A>

gaiasky.util.gaia.NumericalAttitudeDataServer<A>

Direct Known Subclasses:

HermiteInterpolatedAttitudeDataServer

public abstract class NumericalAttitudeDataServer<A extends IAttitude>
extends BaseAttitudeDataServer<A>

Field Summary

Fields

Modifier and Type	Field	Description
protected GtiList	gtis	List of good time intervals

Fields inherited from class BaseAttitudeDataServer

initialized, initialRequestedTimeContext, nativeTimeContext, withUncertaintiesCorrelations

Modifier and Type	Field	Description
protected boolean	initialized	Some scanning laws have constants or tables for interpolation that need to be computed before the first use and recomputed after changing certain reference values.
protected TimeContext	initialRequestedTimeContext
protected TimeContext	nativeTimeContext	native and initially requested time context of the server - has to be set by the implementing class
protected boolean	withUncertaintiesCorrelations	switch to decide if attitude uncertainties and correlations should be calculated

Constructor Summary

Constructors

Constructor	Description
NumericalAttitudeDataServer()

Method Summary

Modifier and Type	Method	Description
GtiList	getGtis()	Get the set of good time intervals for the spacecraft attitude.
long	getStartTime()
long	getStopTime()
abstract void	initialize()	Any numerical attitude needs to be initialized
boolean	isValid(long t)	Check if the there is a valid attitude at a given time

Methods inherited from class BaseAttitudeDataServer

getAttitude, getAttitude, getAttitude, getAttitudeNative, getRefTime, isInitialized, setInitialized, setRefTime

Modifier and Type	Method	Description
A	getAttitude(long time)
A	getAttitude(Instant instant)
A	getAttitude(Date date)
protected abstract A	getAttitudeNative(long time)	Evaluate the attitude in the native time system of the server
long	getRefTime()
boolean	isInitialized()
void	setInitialized(boolean initialized)
void	setRefTime(long t)

Methods inherited from class Object

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

Field Details

gtis

protected GtiList gtis

List of good time intervals

Constructor Details

NumericalAttitudeDataServer

public NumericalAttitudeDataServer()

Method Details

initialize

public abstract void initialize()

Any numerical attitude needs to be initialized

Throws:

RuntimeException - initialization fails

isValid

public boolean isValid(long t)

Check if the there is a valid attitude at a given time

Parameters:

t - time

Returns:

true if the attitude is valid for time t

getGtis

public GtiList getGtis()

Get the set of good time intervals for the spacecraft attitude. Note that this may not be the same as the times for which an attitude is defined in the input data; an implementation may censor time periods, for example when the attitude uncertainty is higher than a defined threshold.

Returns:

the list of attitude Good Time Intervals.

getStartTime

public long getStartTime()

Returns:

start time of this attitude segment - this is the earliest time at which attitude can be requested

getStopTime

public long getStopTime()

Returns:

end time of this attitude segment - this is the latest time at which attitude can be requested