Inheritance diagram for DtOsgEarthTerrainSourceTracker:

Classes
struct	IndexConfig
	Information about each individual index file. More...

class	IndexInputInterface
	Generic interface for reading from index. More...

Public Member Functions
	DtOsgEarthTerrainSourceTracker (DtVantageTerrainEngine , DtPagerCommandQueue commandQueue, osgEarth::MapNode *mapNode)

virtual bool	useRawElevation () const
	True if using elevation data (i.e. if using osgEarth REX engine). More...

virtual bool	useLandCoverData () const
	Return true if the current tracker use land cover data. More...

unsigned	getHighestLodForLandCover () const

void	setLandCoverSurfaceCharacteristicsMapper (makVrf::DtSurfaceCharacteristicMap *mapper)

void	getSoilFromString (const std::string &soilType, DtSurface &surface) const

virtual const osg::ref_ptr < osgEarth::LandCoverLayer >	getBestLandCoverLayer (const osgEarth::TileKey &key) const

virtual boost::optional < DtTerrainIntersectOptions::Fidelity >	intersectFidelity () const
	Fidelity this tracker is configured for. More...

virtual unsigned	tileCount () const
	Number of currently paged in tiles. More...

virtual unsigned	cellCount () const
	Number of cells in index. More...

virtual bool	init (DtTerrainSourcePager &)
	Initialize after configuration. More...

virtual void	addPagedInTile (const osgEarth::TileKey &tilekey, const boost::shared_ptr< DtTileData > &tileData)
	Adds a tileId and the corresponding tileData to #myPagedInTiles. More...

virtual void	removePagedInTile (const osgEarth::TileKey tileKey)
	Removes a tileId and the corresponding tileData from #myPagedInTiles. More...

virtual bool	dataAvailable (DtPagingMetaDataPtr metaData, DtTerrainPagingGeometryPtr geometry)
	Finds all tiles within geometry, and tests to see whether they have all been paged in already. More...

virtual bool	findHeightFieldIntersections (DtTerrainIntersectStatus &status, const DtChord &chord, DtVrfChordIntersectRecordList &intList, const DtTerrainIntersectOptions &options) const
	Performs terrain intersections. More...

virtual bool	halveChordAndFindHeightFieldIntrx (const DtChord &chord, DtChord convertedChord, const DtTerrainIntersectOptions &options, DtTerrainIntersectStatus &status, DtVrfChordIntersectRecordList &intList) const
	Used in findHeightFieldIntersections. More...

virtual bool	splitChordAt180AndFindHeightFieldIntrx (const DtChord &chord, const DtTerrainIntersectOptions &options, DtTerrainIntersectStatus &status, DtVrfChordIntersectRecordList &intList) const
	Used in findHeightFieldIntersections. More...

virtual void	processTriangles (DtTriangleOutputInterface &output, const DtTerrainProcessPolygonsBox &box)
	Outputs triangles interpolated from elevation data. More...

virtual void	pageInData (DtPagingMetaDataPtr metaData, DtTerrainPagingGeometryPtr geometry)
	Page in data within geometry. More...

virtual DtTerrainIntersectIDType	findOldestPagedData (unsigned int &numTrianglesOut)
	Finds the least-recently-used tile and set myOldestPagedObject to it. More...

virtual void	pageOutOldestData (const int priority)
	Adds a page out command for the least-recently-used tileID to myCommandQueue. More...

virtual bool	canPageOutData (DtTerrainIntersectIDType intersectId)
	Returns true if there is data that can be paged out. More...

virtual osgEarth::TileKey	getBestTileKey (const osgEarth::TileKey &) const
	Uses osgearth layer data to find the smallest lod for a given area that actually has data. More...

virtual void	findMissingTiles (const DtTerrainPagingGeometryPtr &geometry, DtTileKeyList &tiles) const
	Find all the tiles that intersect the geometry which are not paged in. More...

void	findPagedInTilesWithinExtent (std::vector< osgEarth::TileKey > &tileKeysPagedIn, const osgEarth::GeoExtent &extent) const
	! Finds the TileKeys for all of the Paged in Tiles that intersect the geo extent More...

void	findPagesAtLodWithinExtents (std::vector< osgEarth::TileKey > &tileKeysFound, const osgEarth::GeoExtent &extent, unsigned lod) const

virtual void	writeIndex (IndexInterface &, IndexOutputInterface &) const
	Writes an index using the whole terrain (i.e. merged) elevation data. More...

virtual bool	writeIndexLayers (IndexInterface &, unsigned precision) const
	Writes indices for each elevation layer. More...

virtual std::vector< IndexConfig >	getIndexConfigInfoForLayer (const osgEarth::ElevationLayer &layer) const
	Return vector of index config objects, one per each index set in layer. More...

virtual void	readIndex (IndexInputInterface &, unsigned layerNumber, const IndexConfig &idxConfig)
	Reads an index file. More...

virtual bool	readIndexLayers ()
	Reads per layer index files. More...

	OsgEarthTileDataCallback ()

virtual bool	operator() (const boost::shared_ptr< DtTileData > &tile)=0


virtual unsigned	maxLOD () const
	Max lod that the tracker will generate. More...

virtual void	setMaxLOD (unsigned)


virtual unsigned	getMaxLODForBilinearIntersection () const
	Max lod at which intersections will be done by exact solution of bilinear surface. More...

virtual void	setMaxLODForBilinearIntersection (unsigned)


virtual double	triangleOutputMergeTolerance () const
	If the max difference between true elevation and elevation defined by the two triangles that make up this cell is less than this value then the system will use those two triangles instead of breaking them up further. More...

virtual void	setTriangleOutputMergeTolerance (double tol)

virtual double	intersetionTriangleMergeTolerance () const

virtual void	setIntersectionTriangleMergeTolerance (double tol)


virtual unsigned	minElevationIndexLOD () const
	Sets the range of LOD levels where elevation values from the terrain index will be used. More...

virtual void	setMinElevationIndexLOD (unsigned)

virtual unsigned	maxElevationIndexLOD () const

virtual void	setMaxElevationIndexLOD (unsigned)


virtual double	maxChordLengthBeforeSplitSquared () const
	Set the max chord length before chords are split. More...

virtual void	setMaxChordLengthBeforeSplit (double)


virtual unsigned	maxElevationChordSplitTestLOD () const
	Sets the max lod used to estimate max terrain elevation under chords. More...

virtual void	setMaxElevationChordSplitTestLOD (unsigned)

Public Member Functions inherited from DtTerrainSourceTracker
	DtTerrainSourceTracker (DtVantageTerrainEngine , DtPagerCommandQueue commandQueue, osgEarth::MapNode *mapNode)
	CTOR. More...

virtual	~DtTerrainSourceTracker ()
	DTOR. More...

virtual DtTerrainInterfaceConfig &	configOptions ()

virtual const DtTerrainInterfaceConfig &	configOptions () const

virtual void	addNodesToCollisionMapping (DtNodeId node, DtCollisionObjectList *collObjList)

virtual void	removeNodeToCollisionMappings (DtNodeId node)

virtual DtCollisionObjectList	collisionObjectsForNode (DtNodeId node)

virtual osgEarth::MapNode *	mapNode () const
	Access osgEarth::MapNode object. More...

virtual const osgEarth::Profile *	profile () const
	Access osgEarth::profile object. More...

virtual const Coordinate_System *	localCS () const
	Return the local coordinate system. More...

virtual void	setLabel (const DtString &)

virtual void	printInfo () const

virtual void	getPageOutData (DtNodeBoundingList &nodeBoundingList)
	Return a list of bounding sphere that represent the the paged in tiles. More...

virtual void	getPageInData (DtNodeBoundingList &nodeBoundingList)
	Return a list of bounding sphere that represent the the paged out tiles. More...

virtual void	getProceduralTreeTile (DtDebugDrawTerrainOutputInterface::terrainLineList &nodeBoundingList)
	Return a list of tiles that represent the ground cover loaded. More...

virtual bool	findTileInCache (const DtTerrainPagingGeometry geometry, std::vector< boost::shared_ptr< DtTileData > > &data, const DtChord chord=NULL) const
	Check it the geometry intersect the tileDataCache (when we know the geometry is a chord, pass the chord pointer as the last optional parameters) More...

virtual void	addTileToCache (const boost::shared_ptr< DtTileData > &data, const DtChord *chord=NULL)
	Add a tile that was not find in the cache (by findTileInCache) (when we know the geometry is a chord, pass the chord pointer as the last optional parameters) More...

virtual void	clearTileCache ()
	Clear the cache. More...

Protected Types
typedef boost::ptr_vector < TileSpatialIndex >	TileRoots

Protected Member Functions
virtual DtPageInTilesCommand *	createPageInTilesCommand (DtPagingMetaDataPtr metaData)

virtual DtPageOutTilesCommand *	createPageOutTilesCommand (DtPagingMetaDataPtr metaData)

virtual bool	aboveAllTerrain (const DtChord &geocentricChord, const DtChord &geodeticCoord) const

virtual bool	shortEnoughForIntersection (const DtChord &geocentricChord, const DtChord &geodeticChord, double chordLengthSq) const
	Determines if the chord is (not) above the threshold length myMaxChordLengthBeforeSplitSquared. More...

virtual bool	crosses180Lon (const DtChord &geodeticChord) const
	Determines if the chord goes between end points that are on opposite sides of the lon = 180 meridian. More...

virtual bool	findData (const DtTerrainPagingGeometry geometry, std::vector< boost::shared_ptr< DtTileData > > &data, const DtPagingMetaDataPtr &metaData=DtPagingMetaDataPtr(), OsgEarthTileDataCallback callback=0) const

virtual bool	findData (const DtTerrainPagingGeometry geometry, std::vector< boost::shared_ptr< DtTileData > > &data, OsgEarthTileDataCallback callback) const

virtual void	findMissing (const DtTerrainPagingGeometry &geometry, DtTileKeyList &missing) const

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

virtual boost::shared_ptr < DtTileData >	findOldestUnlocked () const

Protected Attributes
osgEarth::ElevationLayerVector	myElevationLayers
	top level elevation layers More...

osgEarth::ElevationLayerVector	myFlattenedElevationLayers
	flattens composite layers More...

makVrf::DtSurfaceCharacteristicMap *	myLandCoverCharacteristicsMap

std::vector< osg::ref_ptr < osgEarth::LandCoverLayer > >	myLandCoverLayers

unsigned	myHighestLodForLandCover

const bool	myUseRawElevation
	use elevation (if false old geometry system will be used) More...

bool	myUseLandCover

unsigned int	myMaxLOD
	max LOD of the whole system More...

unsigned int	myMaxLODForBilinearIntersection
	max LOD which will use exact intersection with bilinear surface More...

double	myTriangleOutputMergeTolerance
	max error tolerances used to decide when it's not necessary triangle elevation to full resolution More...

double	myIntersetionTriangleMergeTolerance

unsigned	myMinElevationIndexLOD
	range of LODs where elevation from index will be used More...

unsigned	myMaxElevationIndexLOD

double	myMaxChordLengthBeforeSplitSquared
	max chord length squared before chords are split More...

unsigned	myMaxElevationChordSplitLOD
	max lod used for estimated max elevation under chord for spliting chords More...

TileRoots	myTileSpatialIndexRoots
	roots of the quad tree (not necessarily 4, geodetic usually has 2) More...

const double	myWorldWidth
	width of world in osgearth coord sys, used for wrapping coords More...

DtTerrainIntersectOptions::Fidelity	myFidelity
	intersect fidelity for this layer More...

boost::weak_ptr< DtTileData >	myOldestData
	cached pointer to oldest tile data More...

boost::weak_ptr< DtTileData >	myOldestLandData

tbb::task_arena	myArena
	Tbb arena to limit number of threads. More...

Protected Attributes inherited from DtTerrainSourceTracker
DtString	myLabel

DtTerrainInterfaceConfig	myConfig

DtPagerCommandQueue *	myCommandQueue

DtNodeToCollObjMMap	myNodeToCollObjMMap

tbb::spin_rw_mutex	myMutex

tbb::spin_rw_mutex	myTileCacheMutex

DtVantageTerrainEngine *	myVantageTerrainEngine

const osg::ref_ptr < osgEarth::MapNode >	myMapNode
	map node for whole terrain More...

const osgEarth::Map *	myMap

const osgEarth::Profile *	myMapProfile

tileDataCacheVector	myTileDataCache
	Tile Data cache to speed up intersections. More...

tbb::atomic< int >	myTileCacheHit
	Stats for cache. More...

tbb::atomic< int >	myTileCacheQuery

DtTerrainSourcePager *	myPager

Friends
class	DtOsgEarthTerrainSourceTracker

Member Typedef Documentation

typedef boost::ptr_vector<TileSpatialIndex> DtOsgEarthTerrainSourceTracker::TileRoots

protected

Constructor & Destructor Documentation

DtOsgEarthTerrainSourceTracker::DtOsgEarthTerrainSourceTracker	(	DtVantageTerrainEngine *	,
		DtPagerCommandQueue *	commandQueue,
		osgEarth::MapNode *	mapNode
	)

Member Function Documentation

virtual bool DtOsgEarthTerrainSourceTracker::useRawElevation ( ) const

virtual

True if using elevation data (i.e. if using osgEarth REX engine).

Reimplemented from DtTerrainSourceTracker.

virtual bool DtOsgEarthTerrainSourceTracker::useLandCoverData ( ) const

virtual

Return true if the current tracker use land cover data.

Reimplemented from DtTerrainSourceTracker.

unsigned DtOsgEarthTerrainSourceTracker::getHighestLodForLandCover ( ) const

void DtOsgEarthTerrainSourceTracker::setLandCoverSurfaceCharacteristicsMapper ( makVrf::DtSurfaceCharacteristicMap * mapper )

void DtOsgEarthTerrainSourceTracker::getSoilFromString	(	const std::string &	soilType,
		DtSurface &	surface
	)		const

virtual

Reimplemented from DtTerrainSourceTracker.

virtual const osg::ref_ptr<osgEarth::LandCoverLayer> DtOsgEarthTerrainSourceTracker::getBestLandCoverLayer ( const osgEarth::TileKey & key ) const

virtual

virtual boost::optional<DtTerrainIntersectOptions::Fidelity> DtOsgEarthTerrainSourceTracker::intersectFidelity ( ) const

virtual

Fidelity this tracker is configured for.

Reimplemented from DtTerrainSourceTracker.

virtual unsigned DtOsgEarthTerrainSourceTracker::maxLOD ( ) const

virtual

Max lod that the tracker will generate.

Reimplemented from DtTerrainSourceTracker.

virtual void DtOsgEarthTerrainSourceTracker::setMaxLOD ( unsigned )

virtual

virtual unsigned DtOsgEarthTerrainSourceTracker::getMaxLODForBilinearIntersection ( ) const

virtual

Max lod at which intersections will be done by exact solution of bilinear surface.

Higher lods will be intersected against the same triangle grid that REX uses.

Reimplemented from DtTerrainSourceTracker.

virtual void DtOsgEarthTerrainSourceTracker::setMaxLODForBilinearIntersection ( unsigned )

virtual

virtual double DtOsgEarthTerrainSourceTracker::triangleOutputMergeTolerance ( ) const

virtual

If the max difference between true elevation and elevation defined by the two triangles that make up this cell is less than this value then the system will use those two triangles instead of breaking them up further.

Intersection is for terrain intersections. Triangle output is for triangle generation.

Reimplemented from DtTerrainSourceTracker.

virtual void DtOsgEarthTerrainSourceTracker::setTriangleOutputMergeTolerance ( double tol )

virtual

virtual double DtOsgEarthTerrainSourceTracker::intersetionTriangleMergeTolerance ( ) const

virtual

Reimplemented from DtTerrainSourceTracker.

virtual void DtOsgEarthTerrainSourceTracker::setIntersectionTriangleMergeTolerance ( double tol )

virtual

virtual unsigned DtOsgEarthTerrainSourceTracker::minElevationIndexLOD ( ) const

virtual

Sets the range of LOD levels where elevation values from the terrain index will be used.

Reimplemented from DtTerrainSourceTracker.

virtual void DtOsgEarthTerrainSourceTracker::setMinElevationIndexLOD ( unsigned )

virtual

virtual unsigned DtOsgEarthTerrainSourceTracker::maxElevationIndexLOD ( ) const

virtual

Reimplemented from DtTerrainSourceTracker.

virtual void DtOsgEarthTerrainSourceTracker::setMaxElevationIndexLOD ( unsigned )

virtual

virtual double DtOsgEarthTerrainSourceTracker::maxChordLengthBeforeSplitSquared ( ) const

virtual

Set the max chord length before chords are split.

virtual void DtOsgEarthTerrainSourceTracker::setMaxChordLengthBeforeSplit ( double )

virtual

virtual unsigned DtOsgEarthTerrainSourceTracker::maxElevationChordSplitTestLOD ( ) const

virtual

Sets the max lod used to estimate max terrain elevation under chords.

virtual void DtOsgEarthTerrainSourceTracker::setMaxElevationChordSplitTestLOD ( unsigned )

virtual

virtual unsigned DtOsgEarthTerrainSourceTracker::tileCount ( ) const

virtual

Number of currently paged in tiles.

virtual unsigned DtOsgEarthTerrainSourceTracker::cellCount ( ) const

virtual

Number of cells in index.

virtual bool DtOsgEarthTerrainSourceTracker::init ( DtTerrainSourcePager & )

virtual

Initialize after configuration.

Reimplemented from DtTerrainSourceTracker.

virtual void DtOsgEarthTerrainSourceTracker::addPagedInTile	(	const osgEarth::TileKey &	tilekey,
		const boost::shared_ptr< 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 bool DtOsgEarthTerrainSourceTracker::findHeightFieldIntersections	(	DtTerrainIntersectStatus &	status,
		const DtChord &	chord,
		DtVrfChordIntersectRecordList &	intList,
		const DtTerrainIntersectOptions &	options
	)		const

virtual

Performs terrain intersections.

Parameters

status	See DtTerrainIntersectStatus.
chord	Chord to intersect.
intList	Results added to this.
options	See DtTerrainIntersectOptions.

virtual bool DtOsgEarthTerrainSourceTracker::halveChordAndFindHeightFieldIntrx	(	const DtChord &	chord,
		DtChord	convertedChord,
		const DtTerrainIntersectOptions &	options,
		DtTerrainIntersectStatus &	status,
		DtVrfChordIntersectRecordList &	intList
	)		const

virtual

Used in findHeightFieldIntersections.

Splits a long chord (shortEnoughForIntersection is false) into halves and recursively checks findHeightFieldIntersections on each.

virtual bool DtOsgEarthTerrainSourceTracker::splitChordAt180AndFindHeightFieldIntrx	(	const DtChord &	chord,
		const DtTerrainIntersectOptions &	options,
		DtTerrainIntersectStatus &	status,
		DtVrfChordIntersectRecordList &	intList
	)		const

virtual

Used in findHeightFieldIntersections.

Splits the chord at lon = 180 (Geoc y=0) and recursively checks findHeightFieldIntersections on each part.

virtual void DtOsgEarthTerrainSourceTracker::processTriangles	(	DtTriangleOutputInterface &	output,
		const DtTerrainProcessPolygonsBox &	box
	)

virtual

Outputs triangles interpolated from elevation data.

Parameters

output	Output interface which received triangles.
box	Query which defines which area is output.

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 DtTerrainIntersectIDType 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 bool DtOsgEarthTerrainSourceTracker::canPageOutData ( DtTerrainIntersectIDType intersectId )

virtual

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

Implements DtTerrainSourceTracker.

virtual osgEarth::TileKey DtOsgEarthTerrainSourceTracker::getBestTileKey ( const osgEarth::TileKey & ) const

virtual

Uses osgearth layer data to find the smallest lod for a given area that actually has data.

The osgearth APIs can only return a larger tile (i.e. smaller lod), so this function is used by starting with the highest LOD (the max LOD set, which is 19 by default for REX) and then going up. Elevation layers may not have any information on this in which case the input key will be returned. This is all used so that we don't have to always have to start checking for data at the highest LOD. The quadtree itself uses this to cap the depth in a given area.

Reimplemented from DtTerrainSourceTracker.

virtual void DtOsgEarthTerrainSourceTracker::findMissingTiles	(	const DtTerrainPagingGeometryPtr &	geometry,
		DtTileKeyList &	tiles
	)		const

virtual

Find all the tiles that intersect the geometry which are not paged in.

void DtOsgEarthTerrainSourceTracker::findPagedInTilesWithinExtent	(	std::vector< osgEarth::TileKey > &	tileKeysPagedIn,
		const osgEarth::GeoExtent &	extent
	)		const

! Finds the TileKeys for all of the Paged in Tiles that intersect the geo extent

void DtOsgEarthTerrainSourceTracker::findPagesAtLodWithinExtents	(	std::vector< osgEarth::TileKey > &	tileKeysFound,
		const osgEarth::GeoExtent &	extent,
		unsigned	lod
	)		const

virtual void DtOsgEarthTerrainSourceTracker::writeIndex	(	IndexInterface &	,
		IndexOutputInterface &
	)		const

virtual

Writes an index using the whole terrain (i.e. merged) elevation data.

virtual bool DtOsgEarthTerrainSourceTracker::writeIndexLayers	(	IndexInterface &	,
		unsigned	precision
	)		const

virtual

Writes indices for each elevation layer.

Returns: True if no error, false otherwise.

virtual std::vector<IndexConfig> DtOsgEarthTerrainSourceTracker::getIndexConfigInfoForLayer ( const osgEarth::ElevationLayer & layer ) const

virtual

Return vector of index config objects, one per each index set in layer.

virtual void DtOsgEarthTerrainSourceTracker::readIndex	(	IndexInputInterface &	,
		unsigned	layerNumber,
		const IndexConfig &	idxConfig
	)

virtual

Reads an index file.

virtual bool DtOsgEarthTerrainSourceTracker::readIndexLayers ( )

virtual

Reads per layer index files.

Returns: True if no error, false otherwise.

virtual DtPageInTilesCommand* DtOsgEarthTerrainSourceTracker::createPageInTilesCommand ( DtPagingMetaDataPtr metaData )

protectedvirtual

virtual DtPageOutTilesCommand* DtOsgEarthTerrainSourceTracker::createPageOutTilesCommand ( DtPagingMetaDataPtr metaData )

protectedvirtual

virtual bool DtOsgEarthTerrainSourceTracker::aboveAllTerrain	(	const DtChord &	geocentricChord,
		const DtChord &	geodeticCoord
	)		const

protectedvirtual

virtual bool DtOsgEarthTerrainSourceTracker::shortEnoughForIntersection	(	const DtChord &	geocentricChord,
		const DtChord &	geodeticChord,
		double	chordLengthSq
	)		const

protectedvirtual

Determines if the chord is (not) above the threshold length myMaxChordLengthBeforeSplitSquared.

virtual bool DtOsgEarthTerrainSourceTracker::crosses180Lon ( const DtChord & geodeticChord ) const

protectedvirtual

Determines if the chord goes between end points that are on opposite sides of the lon = 180 meridian.

virtual bool DtOsgEarthTerrainSourceTracker::findData	(	const DtTerrainPagingGeometry *	geometry,
		std::vector< boost::shared_ptr< DtTileData > > &	data,
		const DtPagingMetaDataPtr &	metaData = `DtPagingMetaDataPtr()`,
		OsgEarthTileDataCallback *	callback = `0`
	)		const

protectedvirtual

virtual bool DtOsgEarthTerrainSourceTracker::findData	(	const DtTerrainPagingGeometry *	geometry,
		std::vector< boost::shared_ptr< DtTileData > > &	data,
		OsgEarthTileDataCallback *	callback
	)		const

protectedvirtual

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

protectedvirtual

virtual boost::shared_ptr<DtTileData> DtOsgEarthTerrainSourceTracker::findOldest ( ) const

protectedvirtual

virtual boost::shared_ptr<DtTileData> DtOsgEarthTerrainSourceTracker::findOldestUnlocked ( ) const

protectedvirtual

DtOsgEarthTerrainSourceTracker::OsgEarthTileDataCallback ( )

explicit

virtual bool DtOsgEarthTerrainSourceTracker::operator() ( const boost::shared_ptr< DtTileData > & tile )

pure virtual

Friends And Related Function Documentation

friend class DtOsgEarthTerrainSourceTracker

friend

Member Data Documentation

osgEarth::ElevationLayerVector DtOsgEarthTerrainSourceTracker::myElevationLayers

protected

top level elevation layers

osgEarth::ElevationLayerVector DtOsgEarthTerrainSourceTracker::myFlattenedElevationLayers

protected

flattens composite layers

makVrf::DtSurfaceCharacteristicMap* DtOsgEarthTerrainSourceTracker::myLandCoverCharacteristicsMap

protected

std::vector<osg::ref_ptr<osgEarth::LandCoverLayer> > DtOsgEarthTerrainSourceTracker::myLandCoverLayers

protected

unsigned DtOsgEarthTerrainSourceTracker::myHighestLodForLandCover

protected

const bool DtOsgEarthTerrainSourceTracker::myUseRawElevation

protected

use elevation (if false old geometry system will be used)

bool DtOsgEarthTerrainSourceTracker::myUseLandCover

protected

unsigned int DtOsgEarthTerrainSourceTracker::myMaxLOD

protected

max LOD of the whole system

unsigned int DtOsgEarthTerrainSourceTracker::myMaxLODForBilinearIntersection

protected

max LOD which will use exact intersection with bilinear surface

double DtOsgEarthTerrainSourceTracker::myTriangleOutputMergeTolerance

protected

max error tolerances used to decide when it's not necessary triangle elevation to full resolution

double DtOsgEarthTerrainSourceTracker::myIntersetionTriangleMergeTolerance

protected

unsigned DtOsgEarthTerrainSourceTracker::myMinElevationIndexLOD

protected

range of LODs where elevation from index will be used

unsigned DtOsgEarthTerrainSourceTracker::myMaxElevationIndexLOD

protected

double DtOsgEarthTerrainSourceTracker::myMaxChordLengthBeforeSplitSquared

protected

max chord length squared before chords are split

unsigned DtOsgEarthTerrainSourceTracker::myMaxElevationChordSplitLOD

protected

max lod used for estimated max elevation under chord for spliting chords

TileRoots DtOsgEarthTerrainSourceTracker::myTileSpatialIndexRoots

protected

roots of the quad tree (not necessarily 4, geodetic usually has 2)

const double DtOsgEarthTerrainSourceTracker::myWorldWidth

protected

width of world in osgearth coord sys, used for wrapping coords

DtTerrainIntersectOptions::Fidelity DtOsgEarthTerrainSourceTracker::myFidelity

protected

intersect fidelity for this layer

boost::weak_ptr<DtTileData> DtOsgEarthTerrainSourceTracker::myOldestData

protected

cached pointer to oldest tile data

boost::weak_ptr<DtTileData> DtOsgEarthTerrainSourceTracker::myOldestLandData

protected

tbb::task_arena DtOsgEarthTerrainSourceTracker::myArena

protected

Tbb arena to limit number of threads.

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

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

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