GPS

Class GPSDataBlock

java.lang.Object

PamguardMVC.PamObservable

PamguardMVC.PamDataBlock<GpsDataUnit>

GPS.GPSDataBlock

All Implemented Interfaces:

NMEAEmulator, PanelOverlayDraw

public class GPSDataBlock
extends PamDataBlock<GpsDataUnit>
implements NMEAEmulator

Add a bit of extra functionality to GPSDataBlock so that it can check new GPS data are 'reasonable' and flag bad ones.

Author:

Doug

Field Summary

Fields inherited from class PamguardMVC.PamDataBlock

ITERATOR_END, MATCH_AFTER, MATCH_BEFORE, MATCH_EXACT, MIX_DONOTHING, MIX_INTODATABASE, MIX_OUTOFDATABASE, NOTIFY_NEW_DATA, NOTIFY_UPDATE_DATA, OFFLINE_DATA_CANCEL, OFFLINE_DATA_INTERRUPT, OFFLINE_DATA_WAIT, orderLock, POSITION_AFTER, POSITION_BEFORE, REFERENCE_ABSOLUTE, REFERENCE_CURRENT, REQUEST_DATA_LOADED, REQUEST_DATA_PARTIAL_LOAD, REQUEST_EXCEPTION, REQUEST_INTERRUPTED, REQUEST_NO_DATA, REQUEST_SAME_REQUEST

Constructor Summary

Constructors

Constructor and Description
GPSDataBlock(PamProcess process)

Method Summary

Methods

Modifier and Type	Method and Description
void	addPamData(GpsDataUnit gpsDataUnit) Adds a new PamDataUnit to the PamDataBlock.
EmulatedData	getNextData()
boolean	isReasonable(GpsDataUnit gpsDataUnit) Check a GPS entry is reasonable - i.e.
boolean	prepareDataSource(long[] timeLimits, long timeOffset) Prepare the data to be read into the emulator.

Methods inherited from class PamguardMVC.PamDataBlock

addDataAnnotationType, addLocalisationContents, addObserver, addObserver, addOfflineDataMap, autoSetDataBlockMixMode, cancelDataOrder, clearAll, clearChannelIterators, clearDeletedList, createProcessAnnotations, createProcessAnnotations, dumpBlockContents, findAnnotation, findAnnotation, findByDatabaseIndex, findDataUnit, findDataUnit, findUnitsinInterval, getBinaryDataSource, getCanLog, getChannelIterator, getChannelIteratorCount, getChannelMap, getClosestUnitMillis, getClosestUnitMillis, getCurrentViewDataEnd, getCurrentViewDataStart, getDataAnnotationType, getDataGain, getDatagrammedMap, getDatagramProvider, getDataName, getDataSelectCreator, getDataSelector, getDataUnit, getFirstUnit, getFirstUnit, getFirstUnitAfter, getLastUnit, getLastUnit, getListIterator, getListIterator, getListIteratorFromEnd, getListIteratorFromStart, getLocalisationContents, getLogging, getLoggingName, getLongDataName, getMixedDirection, getNaturalLifetime, getNaturalLifetimeMillis, getNextDataStart, getNextUnit, getNextUnit, getNumDataAnnotationTypes, getNumOfflineDataMaps, getNumRequiredBeforeLoadTime, getOfflineData, getOfflineDataMap, getOfflineDataMap, getOrderStatus, getParentProcess, getPreceedingUnit, getPreceedingUnit, getPreceedingUnit, getPreceedingUnit, getPrevDataEnd, getPrimaryDataMap, getProcessAnnotations, getQuickId, getRawSourceDataBlock, getRawSourceDataBlock2, getRecycledUnit, getRecyclingStoreLength, getRemovedItems, getReverseChannelIterator, getSampleRate, getSaveRequirements, getShouldBinary, getShouldLog, getSourceDataBlock, getSourceProcess, getUnitClass, getUnitIndex, getUnitsCount, getUnitsCountFromTime, isCanClipGenerate, isClearAtStart, isLinkGpsData, isRecycling, loadViewerData, masterClockUpdate, noteNewSettings, notifyModelChanged, orderOfflineData, orderOfflineData, remove, remove, removeOfflineDataMap, reset, saveViewerData, setBinaryDataSource, setCanClipGenerate, setChannelMap, setClearAtStart, setDatagramProvider, setDataName, setLinkGpsData, setLocalisationContents, SetLogging, setMixedDirection, setNaturalLifetime, setNaturalLifetimeMillis, setRecordingTrigger, setRecycling, setRecyclingStoreLength, setSampleRate, setShouldBinary, setShouldLog, shouldNotify, sortData, toString, updatePamData

Methods inherited from class PamguardMVC.PamObservable

canDraw, clearchanged, countObservers, createKeyItem, deleteObserver, deleteObservers, drawDataUnit, findThreadedObserver, getCPUPercent, getCPUPercent, getHoverText, getLongestObserver, getPamObservers, getRequiredHistory, hasOptionsDialog, notifyObservers, notifyObservers, setChanged, setOverlayDraw, showOptions, waitForThreadedObservers

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

GPSDataBlock

public GPSDataBlock(PamProcess process)

Method Detail

addPamData

public void addPamData(GpsDataUnit gpsDataUnit)

Description copied from class: PamDataBlock

Adds a new PamDataUnit to the PamDataBlock. When the data unit is added, PamObservers that have subscribed to the block will be notified.

Overrides:

addPamData in class PamDataBlock<GpsDataUnit>

Parameters:

gpsDataUnit - Reference to a PamDataUnit

isReasonable

public boolean isReasonable(GpsDataUnit gpsDataUnit)

Check a GPS entry is reasonable - i.e. doesn't jump a huge distance from the preceeding entry.

Parameters:

gpsDataUnit -

Returns:

true if reasonable.

getNextData

public EmulatedData getNextData()

Specified by:

getNextData in interface NMEAEmulator

Returns:

the next emulated data, or null if there are no more.

prepareDataSource

public boolean prepareDataSource(long[] timeLimits,
                        long timeOffset)

Description copied from interface: NMEAEmulator

Prepare the data to be read into the emulator.

The task may be as simple as setting up an interator to go through the data already read into the datablock or it may involve setting up a new database query to get back to raw data.

Specified by:

prepareDataSource in interface NMEAEmulator

Parameters:

timeLimits - time limits for the emulation

timeOffset - time offset - between when the data were collected and the time they should be emulated at.

Returns:

true if OK