The DtAisDataManager loads and manages Automatic Identification System (AIS) data, which is used to track and monitor real world ships. This data can be used to create and simulate clutter entities in a simulation.

Inheritance diagram for DtAisDataManager:

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Public Types
typedef std::vector< DtAisTrack >	DtAisTrackBuffer

typedef std::list< DtAisTrack * >	DtAisTrackList

typedef std::unordered_map < DtMmsi, DtAisTrack * >	DtAisTrackMap

Public Types inherited from DtAisDataServiceInterface
using	DtMmsi = int

using	DtMmsiSet = std::set< DtMmsi >

using	DtPathPoints = std::map< double, DtPathPoint >

using	DtPathPointIter = std::map< double, DtPathPoint >::const_iterator

Public Member Functions
	DtAisDataManager (DtSimulationServices *simServices)

virtual	~DtAisDataManager () override

virtual bool	init ()

virtual void	tick ()

virtual bool	isDataLoaded () const override

virtual DtAisDataJob::Ptr	findTracksInArea (const DtVertexList &areaVertices, bool unownedOnly=true) override

virtual DtAisDataJob::Ptr	findTracksInAreaDuringTime (const DtVertexList &areaVertices, double startSimTime, double endSimTime, bool unownedOnly) override

virtual const DtAisTrack *	trackInfo (DtMmsi trackId) const override

virtual DtAisDataJob::Ptr	requestOwnershipOfTracks (const DtMmsiSet &trackIds) override

virtual DtAisDataJob::Ptr	releaseOwnershipOfTracks (const DtMmsiSet &trackIds) override

virtual double	aisTimeFromSimTime (double simTime) const override

virtual double	simTimeFromAisTime (double aisTime) const override

virtual double	finalDataSimTime () const override

virtual bool	getFirstPointAfterTime (const DtAisTrack &track, double simTime, DtPathPointIter &pathPointIter) const override

virtual bool	getLastPointBeforeTime (const DtAisTrack &track, double simTime, DtPathPointIter &pathPointIter) const override

virtual DtPathPointIter	getEndOfpath (const DtAisTrack &track) const override

virtual void	resetData () override

virtual void	clearData () override

virtual void	loadAisData ()

virtual bool	isDataLoading () const

virtual bool	timeToStop () const

virtual void	stop ()

Public Member Functions inherited from DtAisDataServiceInterface
	DtAisDataServiceInterface ()

virtual	~DtAisDataServiceInterface ()

Static Public Member Functions
static void	tickCallback (void *usr)

Protected Types
typedef tbb::spin_mutex	QueryQueueMutex

typedef std::list < DtAisDataJob::Ptr >	JobQueue

Protected Member Functions
virtual void	performDataClear ()

virtual void	performDataReset ()

virtual void	startAisDataLoad ()

virtual void	calculateTrackTimeOffset ()

Protected Attributes
DtAisTrackBuffer	myTracks

DtAisTrackMap	myTracksByMmsi

DtMmsiSet	myUnusedTracks

DtMmsiSet	myTracksInUse

QueryQueueMutex	myQueryQueueMutex

JobQueue	myJobQueue

DtSimulationServices *	mySimulationServices

DtTime	myTrackTimeAtSimTime0

DtTime	myFirstDataAisTime

DtTime	myFirstDataSimTime

DtTime	myFinalDataAisTime

DtTime	myFinalDataSimTime

std::atomic< bool >	myClearData

std::atomic< bool >	myResetData

std::atomic< bool >	myResetTimeOffset

std::atomic< bool >	myDataIsLoaded

std::atomic< bool >	myLoadInProgress

std::atomic< bool >	myWarnedOnce

std::atomic< bool >	myTimeToStop

tbb::task_arena	myArena

Private Member Functions
	DtAisDataManager (const DtAisDataManager &orig)

DtAisDataManager &	operator= (const DtAisDataManager &other)

Friends
class	DtAisDataManagerJob

Member Typedef Documentation

typedef std::vector<DtAisTrack> DtAisDataManager::DtAisTrackBuffer

typedef std::list<DtAisTrack*> DtAisDataManager::DtAisTrackList

typedef std::unordered_map<DtMmsi, DtAisTrack*> DtAisDataManager::DtAisTrackMap

typedef tbb::spin_mutex DtAisDataManager::QueryQueueMutex

protected

typedef std::list<DtAisDataJob::Ptr> DtAisDataManager::JobQueue

protected

Constructor & Destructor Documentation

DtAisDataManager::DtAisDataManager ( DtSimulationServices * simServices )

Constructs the AIS data manager.

virtual DtAisDataManager::~DtAisDataManager ( )

overridevirtual

The destructor.

DtAisDataManager::DtAisDataManager ( const DtAisDataManager & orig )

private

copy constructor not defined

Member Function Documentation

virtual bool DtAisDataManager::init ( )

virtual

Initializes the AIS data manager.

Returns: a boolean signifying success or failure.

static void DtAisDataManager::tickCallback ( void * usr )

static

Static tick method that is registered with DtSimulationServices callbacks. Calls tick().

virtual void DtAisDataManager::tick ( )

virtual

Tick the AIS data manager. Determines whether tracks have entered or exited areas of interest and calls registered functions to notify them of the change.

virtual bool DtAisDataManager::isDataLoaded ( ) const

overridevirtual

Returns true if AIS data has been loaded.

Implements DtAisDataServiceInterface.

virtual DtAisDataJob::Ptr DtAisDataManager::findTracksInArea	(	const DtVertexList &	areaVertices,
		bool	unownedOnly = `true`
	)

overridevirtual

Starts a query for all tracks in the specified area. If unownedOnly is true (the default) then only unowned tracks are returned.

Implements DtAisDataServiceInterface.

virtual DtAisDataJob::Ptr DtAisDataManager::findTracksInAreaDuringTime	(	const DtVertexList &	areaVertices,
		double	startSimTime,
		double	endSimTime,
		bool	unownedOnly
	)

overridevirtual

Starts a query for all tracks in the specified area. If unownedOnly is true (the default) then only unowned tracks are returned.

Implements DtAisDataServiceInterface.

virtual const DtAisTrack* DtAisDataManager::trackInfo ( DtMmsi trackId ) const

overridevirtual

Returns information for the track with the specified MMSI, or nullptr if it could not be found. Will always return nullptr if isDataLoaded() returns false;.

Implements DtAisDataServiceInterface.

virtual DtAisDataJob::Ptr DtAisDataManager::requestOwnershipOfTracks ( const DtMmsiSet & trackIds )

overridevirtual

Request ownership of the specified given tracks.

Implements DtAisDataServiceInterface.

virtual DtAisDataJob::Ptr DtAisDataManager::releaseOwnershipOfTracks ( const DtMmsiSet & trackIds )

overridevirtual

Release ownership of the specified tracks.

Implements DtAisDataServiceInterface.

virtual double DtAisDataManager::aisTimeFromSimTime ( double simTime ) const

overridevirtual

Converts a sim time to AIS data time. Needed to understand how sim time relates to the timestamps in the AIS track data.

Implements DtAisDataServiceInterface.

virtual double DtAisDataManager::simTimeFromAisTime ( double aisTime ) const

overridevirtual

Converts the AIS data time to sim time. Needed to understand how sim time relates to the timestamps in the AIS track data.

Implements DtAisDataServiceInterface.

virtual double DtAisDataManager::finalDataSimTime ( ) const

overridevirtual

Returns the sim time for the last point of AIS data available.

Implements DtAisDataServiceInterface.

virtual bool DtAisDataManager::getFirstPointAfterTime	(	const DtAisTrack &	track,
		double	simTime,
		DtPathPointIter &	pathPointIter
	)		const

overridevirtual

Find the first point in the track's path that occurs after (or at) the specified sim time. If no points meet this criteria, returns false and sets pathPointIter to the end of the path. (i.e. path.end()) Otherwise, returns true and pathPointIter parameter is set to the iterator to this point.

Implements DtAisDataServiceInterface.

virtual bool DtAisDataManager::getLastPointBeforeTime	(	const DtAisTrack &	track,
		double	simTime,
		DtPathPointIter &	pathPointIter
	)		const

overridevirtual

Find the last point in the track's path that occurs before (or at) the specified sim time. If no points meet this criteria, returns false and sets pathPointIter to the end of the path. (i.e. path.end()) Otherwise, returns true and pathPointIter parameter is set to the iterator to this point.

Implements DtAisDataServiceInterface.

virtual DtPathPointIter DtAisDataManager::getEndOfpath ( const DtAisTrack & track ) const

overridevirtual

Returns an iterator to the end of the path (i.e. path.end()).

Implements DtAisDataServiceInterface.

virtual void DtAisDataManager::resetData ( )

overridevirtual

Marks AIS data to be reset. Data will not be unloaded, but ownership of all tracks will be reset to unowned.

Implements DtAisDataServiceInterface.

virtual void DtAisDataManager::clearData ( )

overridevirtual

Marks AIS data to be cleared. Data will be completely unloaded.

Implements DtAisDataServiceInterface.

virtual void DtAisDataManager::loadAisData ( )

virtual

Loads the AIS data.

Warning: Should only be called by the thread spawned to load AIS data. DO NOT CALL THIS FUNCTION DIRECTLY.

virtual bool DtAisDataManager::isDataLoading ( ) const

virtual

virtual bool DtAisDataManager::timeToStop ( ) const

virtual

virtual void DtAisDataManager::stop ( )

virtual

virtual void DtAisDataManager::performDataClear ( )

protectedvirtual

Clears out all loaded AIS data.

virtual void DtAisDataManager::performDataReset ( )

protectedvirtual

Resets all AIS data to be unowned.

virtual void DtAisDataManager::startAisDataLoad ( )

protectedvirtual

Spawns a thread to begin loading AIS data.

virtual void DtAisDataManager::calculateTrackTimeOffset ( )

protectedvirtual

Calculates and sets myTrackTimeAtSimTime0, which is used to translate between sim time and AIS track data time.

DtAisDataManager& DtAisDataManager::operator= ( const DtAisDataManager & other )

private

assignment operator not defined

Friends And Related Function Documentation

friend class DtAisDataManagerJob

friend

Member Data Documentation

DtAisTrackBuffer DtAisDataManager::myTracks

protected

Buffer containing information on all loaded AIS tracks.

DtAisTrackMap DtAisDataManager::myTracksByMmsi

protected

Index into the track data by MMSI.

DtMmsiSet DtAisDataManager::myUnusedTracks

protected

List of the subset of tracks that are not in use.

DtMmsiSet DtAisDataManager::myTracksInUse

protected

List of the subset of tracks that are in use.

QueryQueueMutex DtAisDataManager::myQueryQueueMutex

mutableprotected

JobQueue DtAisDataManager::myJobQueue

protected

DtSimulationServices* DtAisDataManager::mySimulationServices

protected

DtTime DtAisDataManager::myTrackTimeAtSimTime0

protected

DtTime DtAisDataManager::myFirstDataAisTime

protected

DtTime DtAisDataManager::myFirstDataSimTime

protected

DtTime DtAisDataManager::myFinalDataAisTime

protected

DtTime DtAisDataManager::myFinalDataSimTime

protected

std::atomic<bool> DtAisDataManager::myClearData

protected

std::atomic<bool> DtAisDataManager::myResetData

protected

std::atomic<bool> DtAisDataManager::myResetTimeOffset

protected

std::atomic<bool> DtAisDataManager::myDataIsLoaded

protected

std::atomic<bool> DtAisDataManager::myLoadInProgress

protected

std::atomic<bool> DtAisDataManager::myWarnedOnce

protected

std::atomic<bool> DtAisDataManager::myTimeToStop

protected

tbb::task_arena DtAisDataManager::myArena

protected

The documentation for this class was generated from the following file:

/data/exports/nrhent7-1/nightly/docs/vrForces.vrf5-2-branch/include/vrfobjcore/aisDataManager.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Private Member Functions

Friends

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation