DtTerraPageTerrainSourcePager Class Reference

DtTerraPageTerrainSourcePager is a derived terrainSourcePager that handles metaflight terrains. More...

Inheritance diagram for DtTerraPageTerrainSourcePager:

Public Member Functions
	DtTerraPageTerrainSourcePager (DtVantageTerrainEngine *terrainEngine, txp::TXPNode *rootNode, const DtFilename &surfaceCharacterMap)
virtual	~DtTerraPageTerrainSourcePager ()
virtual DtTerrainSourceTracker *	createTerrainSourceTracker ()
	Creates and returns a DtOsgTerrainSourceTracker.
virtual bool	pageInGeometry (const DtTerrainPagingGeometryPtr geometry, const unsigned int intersectId=0)
	This function must page in all the geometry specified by the argument, and return true when successful.
virtual bool	pageOutNodes (std::list< DtNodeId > &nodesToRemove)
	This function must cause the page out of the nodeIds specified.
virtual void	updateTerrain (const unsigned int intersectId=0)
virtual void	updatePageTracker (const unsigned int intersectId=0)
virtual void	traverseChildAndLoad (osg::Group *)
Public Member Functions inherited from DtBoundingVolumeTerrainSourcePager
	DtBoundingVolumeTerrainSourcePager (DtVantageTerrainEngine *terrainEngine)
virtual	~DtBoundingVolumeTerrainSourcePager ()
Public Member Functions inherited from DtTerrainSourcePager
	DtTerrainSourcePager (DtVantageTerrainEngine *terrainEngine)
	Constructor.
virtual	~DtTerrainSourcePager ()
	Destructor. Deletes all pending commands and myTerrainSourceTracker.
virtual void	tick ()
	Processes commands from the priority-sorted command map.
virtual DtTerrainSourceTracker *	terrainSourceTracker ()
	Accessor for myTerrainSourceTracker.
virtual int	highestPriorityPendingWork ()
	Calls processCommandQueue to add new commands into the priority-sorted command map.
virtual void	processCommandQueue ()
	Takes incoming commands off the command queue and adds them to the priority-sorted command map.
virtual void	setCurrentTime (const double &currentTime)
	Sets myCurrentTime for purposes of expiring old page-in commands.

Static Public Member Functions
static DtTerrainSourcePager *	terrainChooserFunction (osg::Node &node, DtVantageTerrainEngine *terrainEngine, const DtFilename &surfaceCharacterMap)
	This is the function that is registered with the DtTerrainSourceChooser.
static DtNodeId	osgNodeId (osg::Node *node)
	Methods for converting to/from DtNodeId.
static osg::Node *	nodeFromId (DtNodeId nodeId)
	Methods for converting to/from DtNodeId.

Protected Attributes
txp::TXPNode *	myRootNode
DtTerraPageNodeBoundingVolumeMap	myPagedInNodes
	This is the list of nodes for only the LODs that we will page into the terrain.
DtTerraPageNodeBoundingVolumeMap	myPagedOutNodes
DtFilename	mySurfaceCharacterMap

Detailed Description

DtTerraPageTerrainSourcePager is a derived terrainSourcePager that handles metaflight terrains.

Constructor & Destructor Documentation

DtTerraPageTerrainSourcePager::DtTerraPageTerrainSourcePager	(	DtVantageTerrainEngine *	terrainEngine,
		txp::TXPNode *	rootNode,
		const DtFilename &	surfaceCharacterMap
	)

virtual DtTerraPageTerrainSourcePager::~DtTerraPageTerrainSourcePager ( )

virtual

Member Function Documentation

virtual DtTerrainSourceTracker* DtTerraPageTerrainSourcePager::createTerrainSourceTracker ( )

virtual

Creates and returns a DtOsgTerrainSourceTracker.

Implements DtTerrainSourcePager.

virtual bool DtTerraPageTerrainSourcePager::pageInGeometry ( const DtTerrainPagingGeometryPtr  geometry, const unsigned int  intersectId = 0  )

virtual

This function must page in all the geometry specified by the argument, and return true when successful.

If this method returns false, it will be called again later, until it returns true or times out.

Implements DtBoundingVolumeTerrainSourcePager.

virtual bool DtTerraPageTerrainSourcePager::pageOutNodes ( std::list< DtNodeId > &  nodesToRemove )

virtual

This function must cause the page out of the nodeIds specified.

It should return true when successful. It will be called repeatedly with the same arguments until it succeeds.

Implements DtBoundingVolumeTerrainSourcePager.

virtual void DtTerraPageTerrainSourcePager::updateTerrain ( const unsigned int  intersectId = 0 )

virtual

Implements DtBoundingVolumeTerrainSourcePager.

virtual void DtTerraPageTerrainSourcePager::updatePageTracker ( const unsigned int  intersectId = 0 )

virtual

Implements DtBoundingVolumeTerrainSourcePager.

static DtTerrainSourcePager* DtTerraPageTerrainSourcePager::terrainChooserFunction ( osg::Node &  node, DtVantageTerrainEngine *  terrainEngine, const DtFilename &  surfaceCharacterMap  )

static

This is the function that is registered with the DtTerrainSourceChooser.

If node is a DtTerraPagePagedLod node, then a DtTerraPageTerrainSourcePager is returned.

static DtNodeId DtTerraPageTerrainSourcePager::osgNodeId ( osg::Node *  node )

static

Methods for converting to/from DtNodeId.

These are protected, because only the pager should be accessing NodeIds as if they are actual nodes. The tracker does not do that since it operates in a separate thread.

static osg::Node* DtTerraPageTerrainSourcePager::nodeFromId ( DtNodeId  nodeId )

static

Methods for converting to/from DtNodeId.

These are protected, because only the pager should be accessing NodeIds as if they are actual nodes. The tracker does not do that since it operates in a separate thread.

virtual void DtTerraPageTerrainSourcePager::traverseChildAndLoad ( osg::Group *  )

virtual

Member Data Documentation

txp::TXPNode* DtTerraPageTerrainSourcePager::myRootNode

protected

DtTerraPageNodeBoundingVolumeMap DtTerraPageTerrainSourcePager::myPagedInNodes

protected

This is the list of nodes for only the LODs that we will page into the terrain.

DtTerraPageNodeBoundingVolumeMap DtTerraPageTerrainSourcePager::myPagedOutNodes

protected

DtFilename DtTerraPageTerrainSourcePager::mySurfaceCharacterMap

protected

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

• /exports/nfedora7-1/nightly/docs/vrforcesDevelopment.tot/include/vantageTerrainImplementation/terrapageTerrainSourcePager.h