TileData Class Reference

Inheritance diagram for TileData:

Public Member Functions
	TileData (const DtTerrainSourceTracker &tracker, const osgEarth::TileKey &key)
DtTerrainIntersectIDType	getLastUsed () const
bool	updateLastUsed (DtTerrainIntersectIDType value)
bool	addActiveTileKey (const osgEarth::TileKey &key)
void	recomputeActiveTileKeyAreas ()
bool	insideValidArea (const DtPoint &p) const
bool	extentInsideValidArea (unsigned x1, unsigned y1, unsigned x2, unsigned y2) const
bool	extentOutsideValidArea (unsigned x1, unsigned y1, unsigned x2, unsigned y2) const
bool	getLandCoverName (const DtPoint &pt, std::string &landCoverName, bool &dataAvailable, bool blockOnUnavailable) const
int	getLandCoverValue (const DtPoint &pt, bool &dataAvailable, bool blockOnUnavailable) const
Public Member Functions inherited from DtTileData
	DtTileData (const DtTerrainSourceTracker &tracker, const osgEarth::TileKey &key)
virtual	~DtTileData ()
virtual bool	inUse () const
bool	setSoilType (const DtPoint &geodeticPt, DtSurface &surface, bool blockIfUnavailable, bool &landDataAvailable) const
DtSurface	setSoilType (const DtTerrainTriangleStruct &tri, bool blockIfUnavailable) const
virtual void	addMaskExtents (const Extent::Vector &extents)
virtual void	addMaskExtent (const Extent &extent)
virtual void	removeMaskExtent (const Extent &extent)
virtual void	getMaskExtents (Extent::Vector &extents)
virtual std::string	description () const =0
virtual unsigned	numberOfVertices () const =0
virtual unsigned	numberOfTrianglesForVertices () const
virtual void	getTriangleVerticesGridSpaced (unsigned xindex, unsigned yindex, double &x, double &y) const =0
virtual void	getTriangleVertices (unsigned xindex, unsigned yindex, double &x, double &y) const =0
virtual void	getTriangleIndices (double x, double y, unsigned &xindex, unsigned &yindex) const =0
virtual double	getTriangleIdxVsHeightFieldIdxRatio () const
virtual double	interpolateHeight (unsigned triangleXIndex, unsigned triangleYIndex, unsigned *heightFieldXUsed=0, unsigned *heightFieldYUsed=0) const =0
virtual double	heightField (unsigned col, unsigned row) const =0
virtual bool	findIntersectionsNonRecursive (const DtChord &chord, unsigned x1, unsigned y1, unsigned x2, unsigned y2, DtVrfChordIntersectRecordList &intList, const DtTerrainIntersectOptions &options, DtIntersectionRecord::DtIntersectionType irtFlag) const
virtual bool	findIntersections (const DtChord &chord, DtVrfChordIntersectRecordList &intList, const DtTerrainIntersectOptions &options) const =0
virtual void	findTriangles (const DtTerrainProcessPolygonsBox &box, unsigned x1, unsigned y1, unsigned x2, unsigned y2, DtTriangleOutputInterface &, bool singleCell=false, bool insideValidAreaChecked=false) const
virtual void	findTriangles (const DtTerrainProcessPolygonsBox &box, DtTriangleOutputInterface &) const =0
virtual osgEarth::FeatureList &	groundFeatureList ()
virtual void	forceLoadAllData (bool isBlocking=true)

Protected Types
typedef std::set < osgEarth::TileKey >	TileKeySet

Protected Attributes
tbb::atomic < DtTerrainIntersectIDType >	myLastUsed
TileKeySet	myInactiveTileKeys
TileKeySet	myActiveTileKeys
tbb::spin_rw_mutex	myInactiveAreasMutex
Extent::Vector	myInactiveAreas
IndexExtent::Vector	myInactiveIndexAreas
Protected Attributes inherited from DtTileData
tbb::spin_rw_mutex	maskExtentsMutex
Extent::Vector	maskExtents
Extent::Vector	unSimplifiedMaskExtents
IndexExtent::Vector	maskIndexExtents
osgEarth::FeatureList	myGroundFeatureList

Additional Inherited Members
Public Types inherited from DtTileData
enum	TileType { Normal, Empty }
Public Attributes inherited from DtTileData
const DtTerrainSourceTracker &	tracker
double	elevationTolerance
CS_Type	cstype
const osgEarth::TileKey	tileKey
osg::ref_ptr < osgEarth::TerrainTileModel >	tileModel
Extent	extent
DtExtent	dtExtent
TileType	type
std::vector< osg::ref_ptr < osg::Node > >	geometries
std::vector< osg::ref_ptr < osg::Node > >	features
std::vector< osgEarth::TileKey >	featuresTileKey
std::vector< std::string >	featuresLayerName
tbb::atomic< unsigned int >	numTriangles
bool	pendingRemoval
Protected Member Functions inherited from DtTileData
virtual void	checkIntersect (const DtChord &chord, const int &cellX, const int &cellY, DtVrfChordIntersectRecordList &intList, const DtTerrainIntersectOptions &options, DtIntersectionRecord::DtIntersectionType irtFlag, bool tileLargeEnoughForBilinear, bool &foundIntersection) const

Member Typedef Documentation

typedef std::set<osgEarth::TileKey> TileData::TileKeySet

protected

Constructor & Destructor Documentation

TileData::TileData	(	const DtTerrainSourceTracker &	tracker,
		const osgEarth::TileKey &	key
	)

Member Function Documentation

DtTerrainIntersectIDType TileData::getLastUsed ( ) const

virtual

Return the last intersect id which touch this tile.

Implements DtTileData.

bool TileData::updateLastUsed ( DtTerrainIntersectIDType  value )

virtual

Update last intersect id.

Implements DtTileData.

bool TileData::addActiveTileKey ( const osgEarth::TileKey &  key )

virtual

Activate this tile (i.e a subregion) of this tile. This complexity is b/c sometimes tiles are only valid for a portion of their extent since there is higher resolution data available for certain subtiles. All the various subtiles (up to the max lod) have to be checked and only once we are sure there is no higher res data can we use that region in this tile.

Implements DtTileData.

void TileData::recomputeActiveTileKeyAreas ( )

virtual

Should be called to enable a tilekey subarea once everything else needed for it is setup. This would be do automatically in addActiveTileKey but that function needs to be called before the masks and skirt geometry are dealt with in order to reject multiple page ins. The area can only be enabled after that is all done though, otherwise there might be some intersections done on the masked out area b/c it is not setup yet.

Implements DtTileData.

bool TileData::insideValidArea ( const DtPoint &  p ) const

virtual

Returns true if the point is inside a valid area. Invalid areas are areas which are covered by a mask (i.e. an cut in), have higher resolution elevation data, or have not been checked for higher resolution data yet. Does not use mask tolerance.

Reimplemented from DtTileData.

bool TileData::extentInsideValidArea ( unsigned  x1, unsigned  y1, unsigned  x2, unsigned  y2  ) const

virtual

Returns true if the extent is entirely inside a valid area (doesn't intersect any invalid areas). Invalid areas are areas which are covered by a mask (i.e. an cut in), have higher resolution elevation data, or have not been checked for higher resolution data yet. Coordinates are triangle indices.

Reimplemented from DtTileData.

bool TileData::extentOutsideValidArea ( unsigned  x1, unsigned  y1, unsigned  x2, unsigned  y2  ) const

virtual

Returns true if the extent is entirely outside the valid area. This means that there is no data to intersect with in this extent in this tile. This function is generally used for optimization and may return false even if the extent actually is completely outside the valid area. Coordinates are triangle indices.

Reimplemented from DtTileData.

bool TileData::getLandCoverName ( const DtPoint &  pt, std::string &  landCoverName, bool &  dataAvailable, bool  blockOnUnavailable  ) const

virtual

Return the land cover name for a location.

Implements DtTileData.

int TileData::getLandCoverValue ( const DtPoint &  pt, bool &  dataAvailable, bool  blockOnUnavailable  ) const

virtual

Return the land cover index value for a location.

Implements DtTileData.

Member Data Documentation

tbb::atomic<DtTerrainIntersectIDType> TileData::myLastUsed

protected

TileKeySet TileData::myInactiveTileKeys

protected

TileKeySet TileData::myActiveTileKeys

protected

tbb::spin_rw_mutex TileData::myInactiveAreasMutex

mutableprotected

Extent::Vector TileData::myInactiveAreas

protected

IndexExtent::Vector TileData::myInactiveIndexAreas

protected

---

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

• /data/exports/nrhent7-1/nightly/docs/vrForces.vrf5-1-branch/include/vantageTerrainImplementation/tileData.h