Classes
struct	ElevationRange

struct	SubTileSlot

struct	ValidElevationRange
	Elevation range for previous layers. More...

Public Member Functions
	TileSpatialIndex (const DtTerrainSourceTracker &tracker, const osgEarth::TileKey &tilekey, TileSpatialIndex *parent)

void	getExtent (DtVector &lower, DtVector &upper, bool useElevation=true) const

void	getSubTileExtent (unsigned i, DtVector &lower, DtVector &upper, bool useElevation=true) const

bool	intersects (const DtTerrainPagingGeometry &geometry) const

bool	intersectsSubTile (const DtTerrainPagingGeometry &geometry, int i) const

bool	chordIntersects (const DtChord &chord, bool useElevation=true) const

bool	extentIntersects (const DtExtent &extent) const

bool	sphereIntersects (const DtSphere &sphere) const

bool	shapeIntersects (const DtLocalVertexList &shape) const

void	findMissing (const DtTerrainPagingGeometry &geometry, DtTileKeyList &missing) const
	Compute tiles which are not paged in which intersect geometry. More...

bool	findData (const DtTerrainPagingGeometry geometry, std::vector< boost::shared_ptr< DtTileData > > &data, TileDataCallback callback=0) const
	Find tiles which are paged in which intersect geometry. More...

boost::optional< double >	getMaxAltForChord (const DtChord &chord, unsigned maxlod) const
	Returns an estimate of the max altitude of the area of the elevation data covered by the chord. More...

boost::shared_ptr< DtTileData >	findOldest () const
	Finds the oldest (last used) tile. More...

bool	addTile (const osgEarth::TileKey &key, const boost::shared_ptr< DtTileData > &data)
	Adds a tile to the tracker. More...

void	removeTile (const osgEarth::TileKey &tilekey)
	Pages out data. More...

void	getTiles (std::vector< osgEarth::TileKey > &keys, unsigned lod)
	Get tiles tileKey list for a specific LOD. More...

unsigned	tileCount () const
	Number of tiles with data. More...

unsigned	cellCount () const
	Number of total indexing cells, including ones without data. More...

const osgEarth::TileKey	tileKey () const
	Tilekey for this index cell. More...

TileSpatialIndex *	setAltitudeRange (const osgEarth::TileKey &key, const ElevationRange &range, const ElevationRange &offsets, unsigned layerNum, bool coversTile)
	Sets the min/max elevation for a given cell. More...

bool	postProcessIndexLayer (unsigned layerNum)
	Processes per layer index data. More...

void	writeIndex (IndexInterface &iface, IndexOutputInterface &output, osgEarth::ElevationLayer *layer=0) const
	Read data from terrain engine and write to stream. More...

Protected Member Functions
bool	findDataChord (const DtTerrainPagingChord geometry, std::vector< boost::shared_ptr< DtTileData > > &data, bool verifyInCache, TileDataCallback callback=0) const
	Specific FindData for Chord to speed up the findData by limiting the number of geometry test. More...

bool	findDataShape (const DtTerrainPagingShape geometry, std::vector< boost::shared_ptr< DtTileData > > &data, bool verifyInCache, TileDataCallback callback=0) const
	Specific FindData for Shape to speed up the findData by limiting the number of geometry test. More...

bool	findDataSphere (const DtTerrainPagingSphere geometry, std::vector< boost::shared_ptr< DtTileData > > &data, bool verifyInCache, TileDataCallback callback=0) const
	Specific FindData for Sphere to speed up the findData by limiting the number of geometry test. More...

bool	chordIntersectsSubTile (const DtChord &chord, int i, bool useElevation=true) const

bool	extentIntersectsSubTile (const DtExtent &shape, int i) const

bool	sphereIntersectsSubTile (const DtSphere &sphere, int i) const

bool	shapeIntersectsSubTile (const DtLocalVertexList &shape, int i) const

bool	isTileEmpty () const
	Whether this tile has any data or not. More...

virtual void	recomputePagedInData ()
	When tiles are paged in/out their ancestor tiles frequently need to recompute some data (i.e. More...

SubTileSlot &	getOrCreateSlot (unsigned i)
	Returns the ith subtile slot which is guaranteed to have the subtile created. More...

void	pageOutSlotIfUnused (unsigned i)
	Deletes the ith subtile if it has no data beneath it. More...

Protected Attributes
const DtTerrainSourceTracker &	myTracker

TileSpatialIndex *	myParent

const osgEarth::TileKey	myTileKey
	Tilekey for this index cell. More...

const osgEarth::GeoExtent	myGeoExtent
	Extent of this index cell. More...

const bool	myUseElevationFlag
	Whether the min/max elevation should be used for this index cell. More...

boost::optional< ElevationRange >	myElevationRange
	Elevation range for this tile, computed from highest resolution data (i.e. children) More...

bool	myPinned
	Index cell not unloaded if true. More...

SubTileSlot	mySubTiles [4]
	Next level of quadtree. More...

boost::shared_ptr< DtTileData >	myTileData
	Elevation data for this tile. More...

bool	myAllPagedInFlag
	Will be set to true if all the data needed to satisify any request in this tile's extent is paged in. More...

bool	myMaxDataLevelFlag
	True if we have determined that there is no higher resolution data in any subtiles. More...

tbb::spin_rw_mutex	myMutex


std::vector< boost::optional < ValidElevationRange > >	myPreviousLayersElevationRange

Constructor & Destructor Documentation

TileSpatialIndex::TileSpatialIndex	(	const DtTerrainSourceTracker &	tracker,
		const osgEarth::TileKey &	tilekey,
		TileSpatialIndex *	parent
	)

Member Function Documentation

void TileSpatialIndex::getExtent	(	DtVector &	lower,
		DtVector &	upper,
		bool	useElevation = `true`
	)		const

void TileSpatialIndex::getSubTileExtent	(	unsigned	i,
		DtVector &	lower,
		DtVector &	upper,
		bool	useElevation = `true`
	)		const

bool TileSpatialIndex::intersects ( const DtTerrainPagingGeometry & geometry ) const

bool TileSpatialIndex::intersectsSubTile	(	const DtTerrainPagingGeometry &	geometry,
		int	i
	)		const

bool TileSpatialIndex::chordIntersects	(	const DtChord &	chord,
		bool	useElevation = `true`
	)		const

bool TileSpatialIndex::extentIntersects ( const DtExtent & extent ) const

bool TileSpatialIndex::sphereIntersects ( const DtSphere & sphere ) const

bool TileSpatialIndex::shapeIntersects ( const DtLocalVertexList & shape ) const

void TileSpatialIndex::findMissing	(	const DtTerrainPagingGeometry &	geometry,
		DtTileKeyList &	missing
	)		const

Compute tiles which are not paged in which intersect geometry.

bool TileSpatialIndex::findData	(	const DtTerrainPagingGeometry *	geometry,
		std::vector< boost::shared_ptr< DtTileData > > &	data,
		TileDataCallback *	callback = `0`
	)		const

Find tiles which are paged in which intersect geometry.

If geometry is null then returns all paged in tiles.

boost::optional<double> TileSpatialIndex::getMaxAltForChord	(	const DtChord &	chord,
		unsigned	maxlod
	)		const

Returns an estimate of the max altitude of the area of the elevation data covered by the chord.

boost::shared_ptr<DtTileData> TileSpatialIndex::findOldest ( ) const

Finds the oldest (last used) tile.

bool TileSpatialIndex::addTile	(	const osgEarth::TileKey &	key,
		const boost::shared_ptr< DtTileData > &	data
	)

Adds a tile to the tracker.

The key parameter and the key for the data may not be the same and the data may already be paged in. The key is the area we are marking as valid for the data region, so the key has to be a descendant of the key of the data.

void TileSpatialIndex::removeTile ( const osgEarth::TileKey & tilekey )

Pages out data.

void TileSpatialIndex::getTiles	(	std::vector< osgEarth::TileKey > &	keys,
		unsigned	lod
	)

Get tiles tileKey list for a specific LOD.

unsigned TileSpatialIndex::tileCount ( ) const

Number of tiles with data.

unsigned TileSpatialIndex::cellCount ( ) const

Number of total indexing cells, including ones without data.

const osgEarth::TileKey TileSpatialIndex::tileKey ( ) const

inline

Tilekey for this index cell.

TileSpatialIndex* TileSpatialIndex::setAltitudeRange	(	const osgEarth::TileKey &	key,
		const ElevationRange &	range,
		const ElevationRange &	offsets,
		unsigned	layerNum,
		bool	coversTile
	)

Sets the min/max elevation for a given cell.

bool TileSpatialIndex::postProcessIndexLayer ( unsigned layerNum )

Processes per layer index data.

void TileSpatialIndex::writeIndex	(	IndexInterface &	iface,
		IndexOutputInterface &	output,
		osgEarth::ElevationLayer *	layer = `0`
	)		const

Read data from terrain engine and write to stream.

iface functions control which keys get processed.

bool TileSpatialIndex::findDataChord	(	const DtTerrainPagingChord *	geometry,
		std::vector< boost::shared_ptr< DtTileData > > &	data,
		bool	verifyInCache,
		TileDataCallback *	callback = `0`
	)		const

protected

Specific FindData for Chord to speed up the findData by limiting the number of geometry test.

bool TileSpatialIndex::findDataShape	(	const DtTerrainPagingShape *	geometry,
		std::vector< boost::shared_ptr< DtTileData > > &	data,
		bool	verifyInCache,
		TileDataCallback *	callback = `0`
	)		const

protected

Specific FindData for Shape to speed up the findData by limiting the number of geometry test.

bool TileSpatialIndex::findDataSphere	(	const DtTerrainPagingSphere *	geometry,
		std::vector< boost::shared_ptr< DtTileData > > &	data,
		bool	verifyInCache,
		TileDataCallback *	callback = `0`
	)		const

protected

Specific FindData for Sphere to speed up the findData by limiting the number of geometry test.

bool TileSpatialIndex::chordIntersectsSubTile	(	const DtChord &	chord,
		int	i,
		bool	useElevation = `true`
	)		const

protected

bool TileSpatialIndex::extentIntersectsSubTile	(	const DtExtent &	shape,
		int	i
	)		const

protected

bool TileSpatialIndex::sphereIntersectsSubTile	(	const DtSphere &	sphere,
		int	i
	)		const

protected

bool TileSpatialIndex::shapeIntersectsSubTile	(	const DtLocalVertexList &	shape,
		int	i
	)		const

protected

bool TileSpatialIndex::isTileEmpty ( ) const

protected

Whether this tile has any data or not.

virtual void TileSpatialIndex::recomputePagedInData ( )

protectedvirtual

When tiles are paged in/out their ancestor tiles frequently need to recompute some data (i.e.

whether their entire area is paged in).

SubTileSlot& TileSpatialIndex::getOrCreateSlot ( unsigned i )

protected

Returns the ith subtile slot which is guaranteed to have the subtile created.

void TileSpatialIndex::pageOutSlotIfUnused ( unsigned i )

protected

Deletes the ith subtile if it has no data beneath it.

Member Data Documentation

const DtTerrainSourceTracker& TileSpatialIndex::myTracker

protected

TileSpatialIndex* TileSpatialIndex::myParent

protected

const osgEarth::TileKey TileSpatialIndex::myTileKey

protected

Tilekey for this index cell.

const osgEarth::GeoExtent TileSpatialIndex::myGeoExtent

protected

Extent of this index cell.

const bool TileSpatialIndex::myUseElevationFlag

protected

Whether the min/max elevation should be used for this index cell.

boost::optional<ElevationRange> TileSpatialIndex::myElevationRange

protected

Elevation range for this tile, computed from highest resolution data (i.e. children)

std::vector< boost::optional<ValidElevationRange> > TileSpatialIndex::myPreviousLayersElevationRange

protected

bool TileSpatialIndex::myPinned

protected

Index cell not unloaded if true.

SubTileSlot TileSpatialIndex::mySubTiles[4]

protected

Next level of quadtree.

boost::shared_ptr<DtTileData> TileSpatialIndex::myTileData

protected

Elevation data for this tile.

bool TileSpatialIndex::myAllPagedInFlag

protected

Will be set to true if all the data needed to satisify any request in this tile's extent is paged in.

bool TileSpatialIndex::myMaxDataLevelFlag

protected

True if we have determined that there is no higher resolution data in any subtiles.

tbb::spin_rw_mutex TileSpatialIndex::myMutex

mutableprotected

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

/data/exports/nrhent7-1/nightly/docs/vrForces.vrf4-10-branch/include/vantageTerrainImplementation/tileSpatialIndex.h

Classes

Public Member Functions

Protected Member Functions

Protected Attributes

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation