Functions
static void	LLtoUTM (const double Lat, const double Long, double &UTMNorthing, double &UTMEasting, char *UTMZone)
static void	LLtoUTM (const double Lat, const double Long, double &UTMNorthing, double &UTMEasting, std::string &UTMZone)
static void	UTM (double lat, double lon, double x, double y)
static char	UTMLetterDesignator (double Lat)
static void	UTMtoLL (const double UTMNorthing, const double UTMEasting, const char *UTMZone, double &Lat, double &Long)
static void	UTMtoLL (const double UTMNorthing, const double UTMEasting, std::string UTMZone, double &Lat, double &Long)
Variables
const double	DEGREES_PER_RADIAN = 180.0/M_PI
const double	RADIANS_PER_DEGREE = M_PI/180.0
const double	UTM_E2 = (WGS84_E*WGS84_E)
const double	UTM_E4 = (UTM_E2*UTM_E2)
const double	UTM_E6 = (UTM_E4*UTM_E2)
const double	UTM_EP2 = (UTM_E2/(1-UTM_E2))
const double	UTM_FE = 500000.0
const double	UTM_FN_N = 0.0
const double	UTM_FN_S = 10000000.0
const double	UTM_K0 = 0.9996
const double	WGS84_A = 6378137.0
const double	WGS84_B = 6356752.31424518
const double	WGS84_E = 0.0818191908
const double	WGS84_EP = 0.0820944379
const double	WGS84_F = 0.0033528107

Function Documentation

static void gps_common::LLtoUTM	(	const double	Lat,
		const double	Long,
		double &	UTMNorthing,
		double &	UTMEasting,
		char *	UTMZone
	)		`[inline, static]`

Convert lat/long to UTM coords. Equations from USGS Bulletin 1532

East Longitudes are positive, West longitudes are negative. North latitudes are positive, South latitudes are negative Lat and Long are in fractional degrees

Written by Chuck Gantz- chuck.gantz@globalstar.com

Definition at line 148 of file conversions.h.

static void gps_common::LLtoUTM	(	const double	Lat,
		const double	Long,
		double &	UTMNorthing,
		double &	UTMEasting,
		std::string &	UTMZone
	)		`[inline, static]`

Definition at line 210 of file conversions.h.

static void gps_common::UTM	(	double	lat,
		double	lon,
		double *	x,
		double *	y
	)		`[inline, static]`

Utility function to convert geodetic to UTM position

Units in are floating point degrees (sign for east/west)

Units out are meters

Definition at line 57 of file conversions.h.

static char gps_common::UTMLetterDesignator ( double Lat ) [inline, static]

Determine the correct UTM letter designator for the given latitude

Returns:: 'Z' if latitude is outside the UTM limits of 84N to 80S

Written by Chuck Gantz- chuck.gantz@globalstar.com

Definition at line 110 of file conversions.h.

static void gps_common::UTMtoLL	(	const double	UTMNorthing,
		const double	UTMEasting,
		const char *	UTMZone,
		double &	Lat,
		double &	Long
	)		`[inline, static]`

Converts UTM coords to lat/long. Equations from USGS Bulletin 1532

East Longitudes are positive, West longitudes are negative. North latitudes are positive, South latitudes are negative Lat and Long are in fractional degrees.

Written by Chuck Gantz- chuck.gantz@globalstar.com

Definition at line 230 of file conversions.h.

static void gps_common::UTMtoLL	(	const double	UTMNorthing,
		const double	UTMEasting,
		std::string	UTMZone,
		double &	Lat,
		double &	Long
	)		`[inline, static]`