DtTerrainAltitudeTable Class Reference

Public Types
typedef DtPoint	Point
typedef std::vector< DtChord >	ChordVector
typedef std::pair< double, double >	Segment
typedef std::set< Segment >	SegmentSet

Public Member Functions
	DtTerrainAltitudeTable (const osgEarth::Map *map, unsigned lod, double bias=30000, double factor=2)
	Create from map.
void	breakUpChord (const MAKVRinTerra::DtProj &proj, DtChord, ChordVector &chords)

Protected Types
typedef boost::ptr_vector < DtTerrainAltitudeTable >	SubCellVector
typedef std::vector< DtChord >	BoundaryVector

Protected Member Functions
	DtTerrainAltitudeTable (const osgEarth::TileKey &tilekey, const osgEarth::Map *map, unsigned lod, MAKVRinTerra::DtProj::CPtr, double bias, double factor)
	Create from map and specific tilekey.
	DtTerrainAltitudeTable (const osgEarth::TileKey &tilekey, const osg::HeightField *field, unsigned xmin, unsigned xmax, unsigned ymin, unsigned ymax, MAKVRinTerra::DtProj::CPtr, double bias, double factor)
	Create from a section of a heightfield.
void	removeSegments (const DtChord &chord, SegmentSet &set)
	Creates a set of segments of a chord for which the chord is higher in altitude than the max height for that segment.
void	createBoundaries ()
	setup boundary info once tilekey has been set
void	setMaxHeight ()
	update max height from max heights of children

Protected Attributes
osgEarth::TileKey	myTileKey
MAKVRinTerra::DtProj::CPtr	myProj
double	myXmin
double	myXmax
double	myYmin
double	myYmax
BoundaryVector	myBoundaries
double	myMaxHeight
SubCellVector	mySubcells
double	myBias
double	myFactor

Member Typedef Documentation

typedef DtPoint DtTerrainAltitudeTable::Point

typedef std::vector<DtChord> DtTerrainAltitudeTable::ChordVector

typedef std::pair<double,double> DtTerrainAltitudeTable::Segment

typedef std::set<Segment> DtTerrainAltitudeTable::SegmentSet

typedef boost::ptr_vector<DtTerrainAltitudeTable> DtTerrainAltitudeTable::SubCellVector

protected

typedef std::vector<DtChord> DtTerrainAltitudeTable::BoundaryVector

protected

Constructor & Destructor Documentation

DtTerrainAltitudeTable::DtTerrainAltitudeTable	(	const osgEarth::Map *	map,
		unsigned	lod,
		double	bias = 30000,
		double	factor = 2
	)

Create from map.

DtTerrainAltitudeTable::DtTerrainAltitudeTable ( const osgEarth::TileKey &  tilekey, const osgEarth::Map *  map, unsigned  lod, MAKVRinTerra::DtProj::CPtr  , double  bias, double  factor  )

protected

Create from map and specific tilekey.

DtTerrainAltitudeTable::DtTerrainAltitudeTable ( const osgEarth::TileKey &  tilekey, const osg::HeightField *  field, unsigned  xmin, unsigned  xmax, unsigned  ymin, unsigned  ymax, MAKVRinTerra::DtProj::CPtr  , double  bias, double  factor  )

protected

Create from a section of a heightfield.

Member Function Documentation

void DtTerrainAltitudeTable::breakUpChord	(	const MAKVRinTerra::DtProj &	proj,
		DtChord	,
		ChordVector &	chords
	)

void DtTerrainAltitudeTable::removeSegments ( const DtChord &  chord, SegmentSet &  set  )

protected

Creates a set of segments of a chord for which the chord is higher in altitude than the max height for that segment.

The segments are returned as pairs of parameter values, where the parameter (t-value) moves from 0 at the start of the chord to 1 at the end of the chord.

void DtTerrainAltitudeTable::createBoundaries ( )

protected

setup boundary info once tilekey has been set

void DtTerrainAltitudeTable::setMaxHeight ( )

protected

update max height from max heights of children

Member Data Documentation

osgEarth::TileKey DtTerrainAltitudeTable::myTileKey

protected

MAKVRinTerra::DtProj::CPtr DtTerrainAltitudeTable::myProj

protected

double DtTerrainAltitudeTable::myXmin

protected

double DtTerrainAltitudeTable::myXmax

protected

double DtTerrainAltitudeTable::myYmin

protected

double DtTerrainAltitudeTable::myYmax

protected

BoundaryVector DtTerrainAltitudeTable::myBoundaries

protected

double DtTerrainAltitudeTable::myMaxHeight

protected

SubCellVector DtTerrainAltitudeTable::mySubcells

protected

double DtTerrainAltitudeTable::myBias

protected

double DtTerrainAltitudeTable::myFactor

protected

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

• /exports/nfedora7-1/nightly/docs/vrforcesDevelopment.vrf4-4-branch/include/vantageTerrainImplementation/vantageTerrainEngine.h