DtOsgEarthTerrainSourceTracker Class Reference

Inheritance diagram for DtOsgEarthTerrainSourceTracker:

List of all members.

Public Member Functions
	DtOsgEarthTerrainSourceTracker (DtPagerCommandQueue *commandQueue, const osgEarth::Profile *profile, unsigned int lod)
virtual	~DtOsgEarthTerrainSourceTracker ()
virtual void	addPagedInTile (const osgEarth::TileKey tileKey, DtTileData *tileData)
	Adds a tileId and the corresponding tileData to myPagedInTiles.
virtual void	removePagedInTile (const osgEarth::TileKey tileKey)
	Removes a tileId and the corresponding tileData from myPagedInTiles.
virtual bool	dataAvailable (DtPagingMetaDataPtr metaData, DtTerrainPagingGeometryPtr geometry)
	Finds all tiles within geometry, and tests to see whether they have all been paged in already.
virtual void	pageInData (DtPagingMetaDataPtr metaData, DtTerrainPagingGeometryPtr geometry)
	Page in data within geometry.
virtual unsigned int	findOldestPagedData (unsigned int &numTrianglesOut)
	Finds the least-recently-used tile and set myOldestPagedObject to it.
virtual void	pageOutOldestData (const int priority)
	Adds a page out command for the least-recently-used tileID to myCommandQueue.
virtual void	drawDebugInfo (btIDebugDraw *debugDrawer)
	Draws the tile boundaries if we are drawing tile boundaries.
virtual bool	canPageOutData (unsigned int intersectId)
	Returns true if there is data that can be paged out.
Protected Member Functions
virtual DtPageInTilesCommand *	createPageInTilesCommand (DtPagingMetaDataPtr metaData)
virtual DtPageOutTilesCommand *	createPageOutTilesCommand (DtPagingMetaDataPtr metaData)
virtual void	tilesInGeometry (DtTerrainPagingGeometryPtr geometry, DtTileKeyList &tilesOut)
	Calls a tilesIn function based on the geometry's type.
virtual void	pageOutData (const DtTileKeyList tilesToRemove, const int priority)
	Creates a page out command with the given list of ids and adds it to the command queue.
virtual void	tilesUnderChord (const DtChord &chord, DtTileKeyList &tilesOut)
virtual void	tilesInSphere (const DtSphere &sphere, DtTileKeyList &tilesOut)
virtual void	tilesInShape (const DtLocalVertexList &vertices, DtTileKeyList &tilesOut)
virtual bool	dataAvailable (DtTileKeyList &keyList, const unsigned int intersectId=0)
virtual void	drawTile (btIDebugDraw *debugDrawer, const DtTileData &tileData)
Protected Attributes
DtPagedTilesMap	myPagedInTiles
	Map of tileIds to the id of the last intersect that required that tile.
std::set< osgEarth::TileKey >	myTilesPendingRemoval
osg::ref_ptr< const osgEarth::Profile >	myProfile
unsigned int	myLOD
osgEarth::TileKey *	myOldestPagedObject
bool	myRecomputeOldestPagedObject

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Constructor & Destructor Documentation

DtOsgEarthTerrainSourceTracker::DtOsgEarthTerrainSourceTracker	(	DtPagerCommandQueue *	commandQueue,
		const osgEarth::Profile *	profile,
		unsigned int	lod
	)

virtual DtOsgEarthTerrainSourceTracker::~DtOsgEarthTerrainSourceTracker

(

)

[virtual]

---

Member Function Documentation

virtual void DtOsgEarthTerrainSourceTracker::addPagedInTile	(	const osgEarth::TileKey	tileKey,
		DtTileData *	tileData
	)		[virtual]

Adds a tileId and the corresponding tileData to myPagedInTiles.

Parameters:

tileId	Key for the tileData passed in.
tileData	tileData to create the tileId -> tileData mapping with.

virtual void DtOsgEarthTerrainSourceTracker::removePagedInTile

(

const osgEarth::TileKey

tileKey

)

[virtual]

Removes a tileId and the corresponding tileData from myPagedInTiles.

virtual bool DtOsgEarthTerrainSourceTracker::dataAvailable	(	DtPagingMetaDataPtr	metaData,
		DtTerrainPagingGeometryPtr	geometry
	)		[virtual]

Finds all tiles within geometry, and tests to see whether they have all been paged in already.

Tiles within the geometry that have been paged in have their "lastUsed" data set to the intersectId parameter for removal priority.

Parameters:

geometry	The geometry to test for data available.
intersectId	Optional parameter to mark already-paged-in tiles with.

Returns:

True if all data within this geometry has been paged in.

Implements DtTerrainSourceTracker.

virtual void DtOsgEarthTerrainSourceTracker::pageInData	(	DtPagingMetaDataPtr	metaData,
		DtTerrainPagingGeometryPtr	geometry
	)		[virtual]

Page in data within geometry.

Determines which tiles are within the geometry and adds a page in command to myCommandQueue to page in any tiles within the geometry that have not yet been paged in.

Parameters:

geometry	The geometry to page in data within.
intersectId	Id to assign to the page in command to seed tileData for newly paged-in tiles.
priority	Priority to use for commands generated by this call.

Implements DtTerrainSourceTracker.

virtual unsigned int DtOsgEarthTerrainSourceTracker::findOldestPagedData

(

unsigned int &

numTrianglesOut

)

[virtual]

Finds the least-recently-used tile and set myOldestPagedObject to it.

Parameters:

numTrianglesOut

The number of triangles the least-recently-used tileId represents in the collision world.

Returns:

The id of the last intersect test for which this tracker's least-recently-used data was necessary.

Implements DtTerrainSourceTracker.

virtual void DtOsgEarthTerrainSourceTracker::pageOutOldestData

(

const int

priority

)

[virtual]

Adds a page out command for the least-recently-used tileID to myCommandQueue.

Parameters:

priority

Priority to use for commands generated by this call.

Implements DtTerrainSourceTracker.

virtual void DtOsgEarthTerrainSourceTracker::drawDebugInfo

(

btIDebugDraw *

debugDrawer

)

[virtual]

Draws the tile boundaries if we are drawing tile boundaries.

Implements DtTerrainSourceTracker.

virtual bool DtOsgEarthTerrainSourceTracker::canPageOutData

(

unsigned int

intersectId

)

[virtual]

Returns true if there is data that can be paged out.

Implements DtTerrainSourceTracker.

virtual DtPageInTilesCommand* DtOsgEarthTerrainSourceTracker::createPageInTilesCommand

(

DtPagingMetaDataPtr

metaData

)

[protected, virtual]

virtual DtPageOutTilesCommand* DtOsgEarthTerrainSourceTracker::createPageOutTilesCommand

(

DtPagingMetaDataPtr

metaData

)

[protected, virtual]

virtual void DtOsgEarthTerrainSourceTracker::tilesInGeometry	(	DtTerrainPagingGeometryPtr	geometry,
		DtTileKeyList &	tilesOut
	)		[protected, virtual]

Calls a tilesIn function based on the geometry's type.

virtual void DtOsgEarthTerrainSourceTracker::pageOutData	(	const DtTileKeyList	tilesToRemove,
		const int	priority
	)		[protected, virtual]

Creates a page out command with the given list of ids and adds it to the command queue.

Parameters:

tilesToRemove	The list of tile ids to page out.
priority	Priority to use for commands generated by this call.

virtual void DtOsgEarthTerrainSourceTracker::tilesUnderChord	(	const DtChord &	chord,
		DtTileKeyList &	tilesOut
	)		[protected, virtual]

virtual void DtOsgEarthTerrainSourceTracker::tilesInSphere	(	const DtSphere &	sphere,
		DtTileKeyList &	tilesOut
	)		[protected, virtual]

virtual void DtOsgEarthTerrainSourceTracker::tilesInShape	(	const DtLocalVertexList &	vertices,
		DtTileKeyList &	tilesOut
	)		[protected, virtual]

virtual bool DtOsgEarthTerrainSourceTracker::dataAvailable	(	DtTileKeyList &	keyList,
		const unsigned int	intersectId = 0
	)		[protected, virtual]

virtual void DtOsgEarthTerrainSourceTracker::drawTile	(	btIDebugDraw *	debugDrawer,
		const DtTileData &	tileData
	)		[protected, virtual]

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Member Data Documentation

DtPagedTilesMap DtOsgEarthTerrainSourceTracker::myPagedInTiles [protected]

Map of tileIds to the id of the last intersect that required that tile.

std::set<osgEarth::TileKey> DtOsgEarthTerrainSourceTracker::myTilesPendingRemoval [protected]

osg::ref_ptr<const osgEarth::Profile> DtOsgEarthTerrainSourceTracker::myProfile [protected]

unsigned int DtOsgEarthTerrainSourceTracker::myLOD [protected]

osgEarth::TileKey* DtOsgEarthTerrainSourceTracker::myOldestPagedObject [protected]

bool DtOsgEarthTerrainSourceTracker::myRecomputeOldestPagedObject [protected]

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

• include/vantageTerrainImplementation/osgEarthTerrainSourceTracker.h