#include <gls_map_util.h>

Classes
class	EllipsoidParams

Public Member Functions
void	SetGeodetic (const Vector &lonLatAlt, const EllipsoidParams &ellipsoid=GeoCoord::WGS84)

void	SetGeodetic (double longitude, double latitude, double altitude, const EllipsoidParams &ellipsoid=GeoCoord::WGS84)

void	GetGeodetic (Vector *lonLatAlt, const EllipsoidParams &ellipsoid=GeoCoord::WGS84) const

void	GetGeodetic (double longitude, double latitude, double *altitude, const EllipsoidParams &ellipsoid=GeoCoord::WGS84) const

void	SetGeocentric (const Vector &value)

void	SetGeocentric (double x, double y, double z)

void	GetGeocentric (Vector *value) const

void	GetGeocentric (double x, double y, double *z) const

bool	operator== (const GeoCoord &other) const

bool	operator!= (const GeoCoord &other) const

Static Public Member Functions
static void	GeocentricToGeodetic (double xp, double yp, double zp, double lon, double lat, double *alt, const EllipsoidParams &ellipsoid=GeoCoord::WGS84)

static void	GeodeticToGeocentric (double lon, double lat, double alt, double xp, double yp, double *zp, const EllipsoidParams &ellipsoid=GeoCoord::WGS84)

static void	UTMToGeodetic (const double northing, const double easting, double &lat_degrees, double &lon_degrees)

static void	UTMToGeodetic (const double northing, const double easting, const int zone, const int latZoneIndex, double &lat_degrees, double &lon_degrees)

static void	GeodeticToUTM (const double lat_degrees, const double lon_degrees, double &northing, double &easting)

static int	CalcZone (double lon_radians)

static int	CalcZoneDeg (double longitude_degrees)

static char	CalcLatZoneDeg (double lat_degrees)

static int	CalcLatZoneDegIndex (double lat_degrees)

static void	GetSphericalDistanceAndBearing (const GeoCoord &coord1, const GeoCoord &coord2, double distance, double bearing, const double radius=6372795.477598)

static void	GetPointAtDistanceAndBearingSpherical (const GeoCoord &origin, double distance, double bearing, GeoCoord *destination, const double radius=6372795.477598)

Static Public Attributes
static const EllipsoidParams	WGS84

Protected Types
enum	ValueFlags { VAL_GEODETIC_WGS84 = 1, VAL_GEOCENTRIC = 2 }

Protected Member Functions
void	GetGeodeticNonWGS84 (double longitude, double latitude, double *altitude, const EllipsoidParams &ellipsoid=GeoCoord::WGS84) const

void	SetGeodeticNonWGS84 (double longitude, double latitude, double altitude, const EllipsoidParams &ellipsoid=GeoCoord::WGS84)

void	UpdateGeodeticWGS84Value () const

void	UpdateGeocentricValue () const

Static Protected Member Functions
static bool	closeValues (double lv, double rv)

static void	CalcFalseNorthEast (double lat_radians)

static void	CalcLambda0 ()

Protected Attributes
unsigned char	_validValues

double	_lon

double	_lat

double	_alt

double	_x

double	_y

double	_z

Static Protected Attributes
static double	_False_Northing = 0.0

static double	_False_Easting = 0.0

static double	_Zone = 0.0

static double	_Lambda0 = 0.0

static const char	_LatZone [20] = { 'C', 'D', 'E', 'F', 'G', 'H', 'J', 'K', 'L', 'M', 'N', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X'}

Detailed Description

The GeoCoord class encapsulates a location relative to the earth. It is possible to get and set the value in a number of different coordinate systems.

Member Function Documentation

void disti::GeoCoord::GeocentricToGeodetic	(	double	xp,
		double	yp,
		double	zp,
		double *	lon,
		double *	lat,
		double *	alt,
		const EllipsoidParams &	ellipsoid = `GeoCoord::WGS84`
	)

static

Utility method to convert from geocentric to geodetic coordinates

void disti::GeoCoord::GeodeticToGeocentric	(	double	lon,
		double	lat,
		double	alt,
		double *	xp,
		double *	yp,
		double *	zp,
		const EllipsoidParams &	ellipsoid = `GeoCoord::WGS84`
	)

static

Utility method to convert from geodetic to geocentric coordinates

void disti::GeoCoord::GeodeticToUTM	(	const double	lat_degrees,
		const double	lon_degrees,
		double &	northing,
		double &	easting
	)

static

(RAT)************************************************************* poly1 = 1.0 - (e_sq/4.0) - (3.0*e_sq*e_sq)/64.0 - 5.0*pow(e_sq,3.0)/256.0; poly2 = 3.0*e_sq/8.0 + (3.0*e_sq*e_sq)/32.0 + 45.0*pow(e_sq, 3.0)/1024.0; poly3 = 15.0*e_sq*e_sq/256.0 + 45.0*pow(e_sq, 3.0)/1024.0; poly4 = 35.0*pow(e_sq, 3.0)/3072.0;

void disti::GeoCoord::GetGeocentric ( Vector * value ) const

inline

Get GeoCoord value in geocentric coordinates

Parameters

value pointer to a vector to receive the value

void disti::GeoCoord::GetGeocentric	(	double *	x,
		double *	y,
		double *	z
	)		const

inline

Get GeoCoord value in geocentric coordinates

Parameters

x	pointer to a double to receive the x coordinate value
y	pointer to a double to receive the y coordinate value
z	pointer to a double to receive the z coordinate value

void disti::GeoCoord::GetGeodetic	(	Vector *	lonLatAlt,
		const EllipsoidParams &	ellipsoid = `GeoCoord::WGS84`
	)		const

inline

Get GeoCoord value in geodetic coordinates

Parameters

lonLatAlt	pointer to a vector to receive the value ( x = longitude, y = latitude, z = altitude )
ellipsoid	Ellipsoid type

void disti::GeoCoord::GetGeodetic	(	double *	longitude,
		double *	latitude,
		double *	altitude,
		const EllipsoidParams &	ellipsoid = `GeoCoord::WGS84`
	)		const

inline

Get GeoCoord value in geodetic coordinates

Parameters

longitude	pointer to a double to receive the longitude in degrees
latitude	pointer to a double to receive the latitude in degrees
altitude	pointer to a double to receive the altitude in meters
ellipsoid	Ellipsoid type

void disti::GeoCoord::GetPointAtDistanceAndBearingSpherical	(	const GeoCoord &	origin,
		double	distance,
		double	bearing,
		GeoCoord *	destination,
		const double	radius = `6372795.477598`
	)

static

Calculate a new point given the distance and initial bearing from a known origin. The new point is located on the 'great circle' arc defined by the parameters.

Parameters

origin	The starting point
distance	Distance to the destination in meters
bearing	Initial bearing from the origin in degrees from true north
destination	Pointer to a GeoCoord to receive the destination point
radius	(optional) Radius of the sphere. Default value is the average radius of the earth (6372795.477598 meters)

void disti::GeoCoord::GetSphericalDistanceAndBearing	(	const GeoCoord &	coord1,
		const GeoCoord &	coord2,
		double *	distance,
		double *	bearing,
		const double	radius = `6372795.477598`
	)

static

Calculate the 'great circle' distance and initial bearing between two points along the surface of a sphere using the Haversine formula.

Parameters

coord1	First point
coord2	Second point
distance	Pointer to a double to receive the distance in meters
bearing	Pointer to a double to receive the initial bearing from coord1 to coord2 in degrees from true north
radius	(optional) Radius of the sphere. Default value is the average radius of the earth (6372795.477598 meters)

bool disti::GeoCoord::operator!= ( const GeoCoord & other ) const

inline

Determine if two GeoCoords do not have equivalent values

Parameters

other The GeoCoord to compare to

bool disti::GeoCoord::operator== ( const GeoCoord & other ) const

inline

Determine if two GeoCoords have equivalent values

Parameters

other The GeoCoord to compare to

void disti::GeoCoord::SetGeocentric ( const Vector & value )

inline

Set GeoCoord value in geocentric coordinates

Parameters

value Vector containing new geocentric coordinate in meters

void disti::GeoCoord::SetGeocentric	(	double	x,
		double	y,
		double	z
	)

inline

Set GeoCoord value in geocentric coordinates

Parameters

x	New x coordinate value in meters
y	New y coordinate value in meters
z	New z coordinate value in meters

void disti::GeoCoord::SetGeodetic	(	const Vector &	lonLatAlt,
		const EllipsoidParams &	ellipsoid = `GeoCoord::WGS84`
	)

inline

Set GeoCoord value in geodetic coordinates

Parameters

lonLatAlt	Vector where x = longitude, y = latitude, z = altitude
ellipsoid	Ellipsoid type

void disti::GeoCoord::SetGeodetic	(	double	longitude,
		double	latitude,
		double	altitude,
		const EllipsoidParams &	ellipsoid = `GeoCoord::WGS84`
	)

inline

Set GeoCoord value in geodetic coordinates

Parameters

longitude	Longitude in degrees
latitude	Latitude in degrees
altitude	Altitude in meters
ellipsoid	Ellipsoid type

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

gls_map_util.h
gls_map_util.cpp

Classes

Public Member Functions

Static Public Member Functions

Static Public Attributes

Protected Types

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Static Protected Attributes

Detailed Description

Member Function Documentation