#include "ogr_spatialref.h"
#include "MathTypes.h"

Classes
class	vtProjection

struct	StatePlaneInfo

class	Geodesic

struct	EPSGDatum

class	GDALInitResult

class	GDALWrapper

Macros
#define	EARTH_RADIUS 6378000.0f

#define	METERS_PER_LATITUDE 111317.1f

#define	OCT OGRCoordinateTransformation

#define	EPSG_DATUM_OLD_HAWAIIAN 6135

#define	EPSG_DATUM_PUERTO_RICO 6139

#define	EPSG_DATUM_NAD27 6267

#define	EPSG_DATUM_NAD83 6269

#define	EPSG_DATUM_WGS72 6322

#define	EPSG_DATUM_WGS84 6326

#define	DEFAULT_LOCATION_GDAL_DATA "/usr/local/share/gdal/"

#define	DEFAULT_LOCATION_PROJ_LIB "/usr/local/share/proj/"

#define	DEFAULT_LOCATION_PROJSO "/usr/local/lib/"

Enumerations
enum	LinearUnits { LU_DEGREES, LU_METERS, LU_FEET_INT, LU_FEET_US, LU_UNITEDGE, LU_UNKNOWN }

Functions
const char *	DatumToString (int d)

const char *	DatumToStringShort (int d)

void	SetupEPSGDatums ()

StatePlaneInfo *	GetStatePlaneTable ()

int	GetNumStatePlanes ()

void	CreateSimilarGeographicProjection (const vtProjection &source, vtProjection &geo)

OCT *	CreateConversionIgnoringDatum (const vtProjection pSource, vtProjection pTarget)

OCT *	CreateCoordTransform (const vtProjection pSource, const vtProjection pTarget, bool bLog=false)

double	EstimateDegreesToMeters (double latitude)

double	GetMetersPerUnit (LinearUnits lu)

const char *	GetLinearUnitName (LinearUnits lu)

double	MetersPerLongitude (double latitude)

bool	ReadAssociatedWorldFile (const char *filename_base, double params[6])

Variables
vtArray< EPSGDatum >	g_EPSGDatums

GDALWrapper	g_GDALWrapper

Function Documentation

OCT* CreateConversionIgnoringDatum	(	const vtProjection *	pSource,
		vtProjection *	pTarget
	)

Create a conversion between projections, making the assumption that the Datum of the target is the same as the Datum of the source.

OCT* CreateCoordTransform	(	const vtProjection *	pSource,
		const vtProjection *	pTarget,
		bool	bLog
	)

Use this function instead of OGRCreateCoordinateTransformation to create a transformation between two vtProjections. Not only does it get around the 'const' issue with the arguments to the OGR function, but it also has a handy logging option, and can deal with any additional projections that vtProjection adds to OGRSpatialReference.

void CreateSimilarGeographicProjection	(	const vtProjection &	source,
		vtProjection &	geo
	)

Given a non-geographic projection, produce a geographic projection which has the same datum/ellipsoid values.

const char* DatumToString ( int d)

Convert an a Datum Code to a string of the Datum Name.

const char* DatumToStringShort ( int d)

Convert a Datum Code to a (short) string of the Datum Name.

double EstimateDegreesToMeters ( double latitude)

Determine an approximate conversion from degrees of longitude to meters, given a latitude in degrees.

const char* GetLinearUnitName ( LinearUnits lu)

Return a string describing the units.

double GetMetersPerUnit ( LinearUnits lu)

Return the number of meters for a given type of linear units

StatePlaneInfo* GetStatePlaneTable ( )

Provides access to the State Plane Table

double MetersPerLongitude ( double latitude)

Return number of meters per degree of longitude, at a given latitude.

bool ReadAssociatedWorldFile	(	const char *	filename_base,
		double	params[6]
	)

Read the contents of a world file. You can pass any filename, and it will look for the corresponding world file.

void SetupEPSGDatums ( )

Setup the global array of EPSG Datums, accessible as g_EPSGDatums.

Classes

Macros

Enumerations

Functions

Variables

Function Documentation