terrainUtil.h File Reference

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Classes
struct	MinMaxInfo

Functions
DtSphere	boundingSphere2DtSphere (const osg::BoundingSphere &boundingSphere)
void	convertGeometry (const DtTerrainPagingGeometryPtr &geometry, const Coordinate_System *CS, const double worldWidth, std::vector< DtTerrainPagingGeometryPtr > &output)
void	convertToOsgEarthCoordSys (DtPoint &p, CS_Type cstype)
void	convertFromOsgEarthCoordSys (DtPoint &p, CS_Type cstype)
void	convertFromOsgEarthCoordSys (DtVector &p, CS_Type cstype)
void	convertFromOsgEarthCoordSys (DtVrfChordIntersectionRecord &record, CS_Type cstype)
void	unwrap (double width, DtLocalVertexList &list, std::vector< DtTerrainPagingGeometryPtr > &output)
bool	extentIntersectsAABB (const DtVector &min1, const DtVector &max1, const DtVector &min2, const DtVector &max2)
bool	boundariesOverlap (double min1, double max1, double min2, double max2)
DtExtent	sphereExtent (const DtSphere &sphere)
bool	shapeIntersectsAABB (const DtLocalVertexList &shape, const DtVector &lower, const DtVector &upper)
bool	pointIntersectsAABB (const DtVector &p, const DtVector &lower, const DtVector &upper)
bool	doubleEqual (double d1, double d2)
DtVrfChordIntersectionRecord *	insertRecordAlongChord (const DtVrfChordIntersectionRecord &record, DtVrfChordIntersectRecordList &intList)

Function Documentation

DtSphere boundingSphere2DtSphere

(

const osg::BoundingSphere &

boundingSphere

)

void convertGeometry	(	const DtTerrainPagingGeometryPtr &	geometry,
		const Coordinate_System *	CS,
		const double	worldWidth,
		std::vector< DtTerrainPagingGeometryPtr > &	output
	)

Convert geometry to internal coordinate system.

void convertToOsgEarthCoordSys	(	DtPoint &	p,
		CS_Type	cstype
	)

convert to coordinate system used by osgEarth tiles

void convertFromOsgEarthCoordSys	(	DtPoint &	p,
		CS_Type	cstype
	)

convert from coordinate system used by osgEarth tiles

void convertFromOsgEarthCoordSys	(	DtVector &	p,
		CS_Type	cstype
	)

convert from coordinate system used by osgEarth tiles

void convertFromOsgEarthCoordSys	(	DtVrfChordIntersectionRecord &	record,
		CS_Type	cstype
	)

convert from coordinate system used by osgEarth tiles

void unwrap	(	double	width,
		DtLocalVertexList &	list,
		std::vector< DtTerrainPagingGeometryPtr > &	output
	)

unwrap moves points lower one world width if they are on the upper half side of the world this is so when geometries overlap the borders of the map we know they will be on the lower half and then we only have to deal with those cases

bool extentIntersectsAABB	(	const DtVector &	min1,
		const DtVector &	max1,
		const DtVector &	min2,
		const DtVector &	max2
	)

TODO ALL functions below should be inline.

bool boundariesOverlap	(	double	min1,
		double	max1,
		double	min2,
		double	max2
	)

Convert geometry to internal coordinate system.

DtExtent sphereExtent

(

const DtSphere &

sphere

)

Convert geometry to internal coordinate system.

bool shapeIntersectsAABB	(	const DtLocalVertexList &	shape,
		const DtVector &	lower,
		const DtVector &	upper
	)

Convert geometry to internal coordinate system.

bool pointIntersectsAABB	(	const DtVector &	p,
		const DtVector &	lower,
		const DtVector &	upper
	)

Convert geometry to internal coordinate system.

bool doubleEqual	(	double	d1,
		double	d2
	)

Convert geometry to internal coordinate system.

DtVrfChordIntersectionRecord* insertRecordAlongChord	(	const DtVrfChordIntersectionRecord &	record,
		DtVrfChordIntersectRecordList &	intList
	)

inserts points inter intersection record list checks each point against the one before and after and rejects if too close