WB2OSZ 8b81a3226f Version 1.2
new file:   A-Better-APRS-Packet-Demodulator-Part-1-1200-baud.pdf
	new file:   A-Better-APRS-Packet-Demodulator-Part-2-9600-baud.pdf
	modified:   APRStt-Implementation-Notes.pdf
	modified:   CHANGES.txt
	new file:   Makefile
	modified:   Makefile.linux
	modified:   Makefile.win
	deleted:    Quick-Start-Guide-Windows.pdf
	modified:   Raspberry-Pi-APRS-Tracker.pdf
	modified:   Raspberry-Pi-APRS.pdf
	modified:   User-Guide.pdf
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	modified:   aprs_tt.c
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	new file:   geotranz/tranmerc.c
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	new file:   geotranz/ups.c
	new file:   geotranz/ups.h
	new file:   geotranz/usng.c
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	new file:   geotranz/utm.c
	new file:   geotranz/utm.h
	modified:   hdlc_rec.c
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	new file:   man1/aclients.1
	new file:   man1/atest.1
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	new file:   man1/gen_packets.1
	new file:   man1/ll2utm.1
	new file:   man1/log2gpx.1
	new file:   man1/text2tt.1
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	new file:   man1/utm2ll.1
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	new file:   ttcalc.c
	deleted:    udp_test.c
	deleted:    utm/LatLong-UTMconversion.c
	deleted:    utm/LatLong-UTMconversion.h
	deleted:    utm/README.txt
	deleted:    utm/SwissGrid.cpp
	deleted:    utm/UTMConversions.cpp
	deleted:    utm/constants.h
	modified:   utm2ll.c
	modified:   version.h
	new file:   xid.c
	modified:   xmit.c
	modified:   xmit.h
2015-07-26 21:17:23 -04:00

176 lines
5.8 KiB
C

#ifndef UPS_H
#define UPS_H
/********************************************************************/
/* RSC IDENTIFIER: UPS
*
*
* ABSTRACT
*
* This component provides conversions between geodetic (latitude
* and longitude) coordinates and Universal Polar Stereographic (UPS)
* projection (hemisphere, easting, and northing) coordinates.
*
*
* ERROR HANDLING
*
* This component checks parameters for valid values. If an
* invalid value is found the error code is combined with the
* current error code using the bitwise or. This combining allows
* multiple error codes to be returned. The possible error codes
* are:
*
* UPS_NO_ERROR : No errors occurred in function
* UPS_LAT_ERROR : Latitude outside of valid range
* (North Pole: 83.5 to 90,
* South Pole: -79.5 to -90)
* UPS_LON_ERROR : Longitude outside of valid range
* (-180 to 360 degrees)
* UPS_HEMISPHERE_ERROR : Invalid hemisphere ('N' or 'S')
* UPS_EASTING_ERROR : Easting outside of valid range,
* (0 to 4,000,000m)
* UPS_NORTHING_ERROR : Northing outside of valid range,
* (0 to 4,000,000m)
* UPS_A_ERROR : Semi-major axis less than or equal to zero
* UPS_INV_F_ERROR : Inverse flattening outside of valid range
* (250 to 350)
*
*
* REUSE NOTES
*
* UPS is intended for reuse by any application that performs a Universal
* Polar Stereographic (UPS) projection.
*
*
* REFERENCES
*
* Further information on UPS can be found in the Reuse Manual.
*
* UPS originated from : U.S. Army Topographic Engineering Center
* Geospatial Information Division
* 7701 Telegraph Road
* Alexandria, VA 22310-3864
*
*
* LICENSES
*
* None apply to this component.
*
*
* RESTRICTIONS
*
* UPS has no restrictions.
*
*
* ENVIRONMENT
*
* UPS was tested and certified in the following environments:
*
* 1. Solaris 2.5 with GCC version 2.8.1
* 2. Windows 95 with MS Visual C++ version 6
*
*
* MODIFICATIONS
*
* Date Description
* ---- -----------
* 06-11-95 Original Code
* 03-01-97 Original Code
*
*
*/
/**********************************************************************/
/*
* DEFINES
*/
#define UPS_NO_ERROR 0x0000
#define UPS_LAT_ERROR 0x0001
#define UPS_LON_ERROR 0x0002
#define UPS_HEMISPHERE_ERROR 0x0004
#define UPS_EASTING_ERROR 0x0008
#define UPS_NORTHING_ERROR 0x0010
#define UPS_A_ERROR 0x0020
#define UPS_INV_F_ERROR 0x0040
/**********************************************************************/
/*
* FUNCTION PROTOTYPES
* for UPS.C
*/
/* ensure proper linkage to c++ programs */
#ifdef __cplusplus
extern "C" {
#endif
long Set_UPS_Parameters( double a,
double f);
/*
* The function SET_UPS_PARAMETERS receives the ellipsoid parameters and sets
* the corresponding state variables. If any errors occur, the error code(s)
* are returned by the function, otherwise UPS_NO_ERROR is returned.
*
* a : Semi-major axis of ellipsoid in meters (input)
* f : Flattening of ellipsoid (input)
*/
void Get_UPS_Parameters( double *a,
double *f);
/*
* The function Get_UPS_Parameters returns the current ellipsoid parameters.
*
* a : Semi-major axis of ellipsoid, in meters (output)
* f : Flattening of ellipsoid (output)
*/
long Convert_Geodetic_To_UPS ( double Latitude,
double Longitude,
char *Hemisphere,
double *Easting,
double *Northing);
/*
* The function Convert_Geodetic_To_UPS converts geodetic (latitude and
* longitude) coordinates to UPS (hemisphere, easting, and northing)
* coordinates, according to the current ellipsoid parameters. If any
* errors occur, the error code(s) are returned by the function,
* otherwide UPS_NO_ERROR is returned.
*
* Latitude : Latitude in radians (input)
* Longitude : Longitude in radians (input)
* Hemisphere : Hemisphere either 'N' or 'S' (output)
* Easting : Easting/X in meters (output)
* Northing : Northing/Y in meters (output)
*/
long Convert_UPS_To_Geodetic(char Hemisphere,
double Easting,
double Northing,
double *Latitude,
double *Longitude);
/*
* The function Convert_UPS_To_Geodetic converts UPS (hemisphere, easting,
* and northing) coordinates to geodetic (latitude and longitude) coordinates
* according to the current ellipsoid parameters. If any errors occur, the
* error code(s) are returned by the function, otherwise UPS_NO_ERROR is
* returned.
*
* Hemisphere : Hemisphere either 'N' or 'S' (input)
* Easting : Easting/X in meters (input)
* Northing : Northing/Y in meters (input)
* Latitude : Latitude in radians (output)
* Longitude : Longitude in radians (output)
*/
#ifdef __cplusplus
}
#endif
#endif /* UPS_H */