This class handles all of the intersection processing for HAT/HOT and LOS requests. More...

Public Member Functions
virtual	~DtCigiIntersectionHandler ()
	Destructor.

Protected Member Functions
	DtCigiIntersectionHandler (DtDe &de, DtCigiConnection &connection)
	Constructor.
virtual void	slot_onHatHotRequest (DtUniqueID entityId, const DtVector &localPosition, unsigned int hotId, bool hatRequested, unsigned int lastHostFrameNumber)
	Slot called when signal_hatHotRequested is received from the CIGI connection.
virtual void	performHatHotRequest (DtUniqueID entityId, const DtVector &localPosition, unsigned int hotId, bool hatRequested, unsigned int lastHostFrameNumber)
	Performs the HAT/HOT calculation and calls generateHatHotResponse on the DtCigiDriver, which will (possibly) put it on the simulation function queue, telling the DtCigiConnection to queue up the response and send it the next time it sends CIGI messages.
virtual void	slot_lineOfSightCheckRequest (DtCigiLosRequest *request, bool takeOwnership)
	Slot called when signal_losSegRequested is received from the CIGI connection.
virtual void	performLineOfSightRequest (DtCigiLosRequest *request, bool takeOwnership)
	Performs the line of sigh calculation and calls generateLosResponse on the DtCigiDriver, which will (possibly) put it on the simulation function queue, telling the DtCigiConnection to queue up the response and send it the next time it sends CIGI messages.
virtual void	setDatabaseCoordinateFromEntity (DtUniqueID entity, const DtVector &entityCoord, DtVector &databaseCoord)
	Looks up the entity and uses the entity coordinates to calculate the database coordinate.
virtual void	setEntityCoordinateFromDatabase (DtUniqueID entity, const DtVector &databaseCoord, DtVector &entityCoord)
	Looks up the entity and uses the entity's position and orientation to transformn the database coordinate into the entity's coordinate system.
virtual void	setGeodeticCoordinateFromDatabase (const DtVector &from, DtGeodeticCoord &to)
	Utility function sets a geodetic coordinate from a database coordinate.
virtual void	getNormalAzAndEl (const DtVector &databaseCoord, const DtVector &normal, float &normalAz, float &normalEl)
	Get the azimuth and elevation of the supplied normal wrt north and up.
virtual double	groundHeight (const DtVector &currentLocal, bool &foundIntersection)
	Calculates the height of the terrain below currentLocal.
virtual void	generateLosBasicResponse (DtCigiLosBasicResponse *losResponse)
	Generate a line-of-sight basic response.
virtual void	generateLosExtendedResponse (DtCigiLosExtendedResponse *losResponse)
	Generate a line-of-sight extended response.
virtual void	generateHatHotResponse (double height, unsigned int hotId, bool hat, unsigned int lastFrame, bool valid)
	Generate a line-of-sight response.
virtual DtCigiLosBasicResponse *	createBasicResponse (const DtVector &start, DtIntersectorResult &result, unsigned int respCount, DtCigiLosRequest *req)
virtual DtCigiLosBasicResponse *	createBasicNoIsectResponse (DtCigiLosRequest *req)
virtual DtCigiLosExtendedResponse *	createExtendedResponse (const DtVector &start, DtIntersectorResult &result, unsigned int respCount, DtCigiLosRequest *req)
virtual DtCigiLosExtendedResponse *	createExtendedNoIsectResponse (DtCigiLosRequest *req)

Protected Attributes
DtDe &	myDe
DtCigiConnection &	myCigiConnection
DtSignalConnectionManager	myConnections

Friends
class	DtCigiIntersectionHandlerCreator

Detailed Description

This class handles all of the intersection processing for HAT/HOT and LOS requests.

It receives signals from the DtCigiConnection when these requests are received and tells the DtCigiDriver to generate responses. If running the CIGI driver in a separate thread, will use the driver's driver function queue to perform the operations.

Constructor & Destructor Documentation

virtual makVrv::DtCigiIntersectionHandler::~DtCigiIntersectionHandler ( )

virtual

Destructor.

makVrv::DtCigiIntersectionHandler::DtCigiIntersectionHandler	(	DtDe &	de,
		DtCigiConnection &	connection
	)

protected

Constructor.

Member Function Documentation

virtual void makVrv::DtCigiIntersectionHandler::slot_onHatHotRequest	(	DtUniqueID	entityId,
		const DtVector &	localPosition,
		unsigned int	hotId,
		bool	hatRequested,
		unsigned int	lastHostFrameNumber
	)

protectedvirtual

Slot called when signal_hatHotRequested is received from the CIGI connection.

Passes on the request to performHatHotRequest.

virtual void makVrv::DtCigiIntersectionHandler::performHatHotRequest	(	DtUniqueID	entityId,
		const DtVector &	localPosition,
		unsigned int	hotId,
		bool	hatRequested,
		unsigned int	lastHostFrameNumber
	)

protectedvirtual

Performs the HAT/HOT calculation and calls generateHatHotResponse on the DtCigiDriver, which will (possibly) put it on the simulation function queue, telling the DtCigiConnection to queue up the response and send it the next time it sends CIGI messages.

Parameters

entityId	The unique ID of the entity used in calculations. If this is 0, a database location is used in the calculation.
localPosition	The database location, or entity offset if the entityId is 0.
hotId	The HOT ID to respond with.
hatRequested	If true, calculates height above terrain. Calculates height of terrain if false.
lastHostFrameNumber	The last host frame received before the calculation takes place

virtual void makVrv::DtCigiIntersectionHandler::slot_lineOfSightCheckRequest	(	DtCigiLosRequest *	request,
		bool	takeOwnership
	)

protectedvirtual

Slot called when signal_losSegRequested is received from the CIGI connection.

Passes on the request to performLineOfSightRequest.

virtual void makVrv::DtCigiIntersectionHandler::performLineOfSightRequest	(	DtCigiLosRequest *	request,
		bool	takeOwnership
	)

protectedvirtual

Performs the line of sigh calculation and calls generateLosResponse on the DtCigiDriver, which will (possibly) put it on the simulation function queue, telling the DtCigiConnection to queue up the response and send it the next time it sends CIGI messages.

Parameters

srcId	The unique ID of the source entity used in calculations. If this is 0, a database location is used in the calculation.
srcLocation	The database location of the source location, or entity offset if the srcId is 0.
dstId	The unique ID of the source entity used in calculations. If this is 0, a database location is used in the calculation.
dstLocation	The database location of the source location, or entity offset if the srcId is 0.
losId	The LOS ID to respond with.
hostFrame	The last host frame received before the calculation takes place

virtual void makVrv::DtCigiIntersectionHandler::setDatabaseCoordinateFromEntity	(	DtUniqueID	entity,
		const DtVector &	entityCoord,
		DtVector &	databaseCoord
	)

protectedvirtual

Looks up the entity and uses the entity coordinates to calculate the database coordinate.

Parameters

entity	The unique ID of the entity.
entityCoord	The entity coordinates (X out the front, Y out the right, Z down)
databaseCoord	Filled in with the database coordinate.

virtual void makVrv::DtCigiIntersectionHandler::setEntityCoordinateFromDatabase	(	DtUniqueID	entity,
		const DtVector &	databaseCoord,
		DtVector &	entityCoord
	)

protectedvirtual

Looks up the entity and uses the entity's position and orientation to transformn the database coordinate into the entity's coordinate system.

Parameters

entity	The unique ID of the entity.
databaseCoord	The coordinate to transform
entityCoord	The result in entity coordinates

virtual void makVrv::DtCigiIntersectionHandler::setGeodeticCoordinateFromDatabase	(	const DtVector &	from,
		DtGeodeticCoord &	to
	)

protectedvirtual

Utility function sets a geodetic coordinate from a database coordinate.

virtual void makVrv::DtCigiIntersectionHandler::getNormalAzAndEl	(	const DtVector &	databaseCoord,
		const DtVector &	normal,
		float &	normalAz,
		float &	normalEl
	)

protectedvirtual

Get the azimuth and elevation of the supplied normal wrt north and up.

If the database is geocentric, create a topo system at the location of the databaseCoord; otherwise it can be ignored, as the normal is already wrt north and up

virtual double makVrv::DtCigiIntersectionHandler::groundHeight	(	const DtVector &	currentLocal,
		bool &	foundIntersection
	)

protectedvirtual

Calculates the height of the terrain below currentLocal.

Parameters

currentLocal	The point in database coordinates.
foundIntersection	Set to true if an intersection exists, false otherwise.

Returns: The height of the terrain.

virtual void makVrv::DtCigiIntersectionHandler::generateLosBasicResponse ( DtCigiLosBasicResponse * losResponse )

protectedvirtual

Generate a line-of-sight basic response.

Calls DtLosResponder::generateLosBasicResponse directly if the driver is in a single thread or queue the response on myConnectionThreadFunctions queue if run in a separate thread.

Parameters

losResponse Pointer to the info needed to construct a CIGI los response packet

virtual void makVrv::DtCigiIntersectionHandler::generateLosExtendedResponse ( DtCigiLosExtendedResponse * losResponse )

protectedvirtual

Generate a line-of-sight extended response.

Calls DtLosResponder::generateLosExtendedResponse directly if the driver is in a single thread or queue the response on myConnectionThreadFunctions queue if run in a separate thread.

Parameters

losResponse Pointer to the info needed to construct a CIGI los response packet

virtual void makVrv::DtCigiIntersectionHandler::generateHatHotResponse	(	double	height,
		unsigned int	hotId,
		bool	hat,
		unsigned int	lastFrame,
		bool	valid
	)

protectedvirtual

Generate a line-of-sight response.

Calls DtCigiConnection::sendHatHotResponse directly if the driver is in a single thread or queue the response on myConnectionThreadFunctions queue if run in a separate thread.

Parameters

height	The HAT/HOT
hotId	The ID of the HAT/HOT response
hat	HAT if true, HOT if false
lastFrame	The last host frame when the calculation was made.
valid	True if an intersection was made

virtual DtCigiLosBasicResponse* makVrv::DtCigiIntersectionHandler::createBasicResponse	(	const DtVector &	start,
		DtIntersectorResult &	result,
		unsigned int	respCount,
		DtCigiLosRequest *	req
	)

protectedvirtual

virtual DtCigiLosBasicResponse* makVrv::DtCigiIntersectionHandler::createBasicNoIsectResponse ( DtCigiLosRequest * req )

protectedvirtual

virtual DtCigiLosExtendedResponse* makVrv::DtCigiIntersectionHandler::createExtendedResponse	(	const DtVector &	start,
		DtIntersectorResult &	result,
		unsigned int	respCount,
		DtCigiLosRequest *	req
	)

protectedvirtual

virtual DtCigiLosExtendedResponse* makVrv::DtCigiIntersectionHandler::createExtendedNoIsectResponse ( DtCigiLosRequest * req )

protectedvirtual

Friends And Related Function Documentation

friend class DtCigiIntersectionHandlerCreator

friend

Member Data Documentation

DtDe& makVrv::DtCigiIntersectionHandler::myDe

protected

DtCigiConnection& makVrv::DtCigiIntersectionHandler::myCigiConnection

protected

DtSignalConnectionManager makVrv::DtCigiIntersectionHandler::myConnections

protected

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

/exports/nfedora7-1/nightly/docs/vrforcesDevelopment.tot/include/vrvCigi/DtCigiIntersectionHandler.h

Public Member Functions

Protected Member Functions

Protected Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation