/usr/include/ossim/projection/ossimTranmerc.h is in libossim-dev 2.2.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 | #ifndef TRANMERC_H
#define TRANMERC_H
/***************************************************************************/
/* RSC IDENTIFIER: TRANSVERSE MERCATOR
*
* ABSTRACT
*
* This component provides conversions between Geodetic coordinates
* (latitude and longitude) and Transverse Mercator projection coordinates
* (easting and northing).
*
* 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:
*
* TRANMERC_NO_ERROR : No errors occurred in function
* TRANMERC_LAT_ERROR : Latitude outside of valid range
* (-90 to 90 degrees)
* TRANMERC_LON_ERROR : Longitude outside of valid range
* (-180 to 360 degrees, and within
* +/-90 of Central Meridian)
* TRANMERC_EASTING_ERROR : Easting outside of valid range
* (depending on ellipsoid and
* projection parameters)
* TRANMERC_NORTHING_ERROR : Northing outside of valid range
* (depending on ellipsoid and
* projection parameters)
* TRANMERC_ORIGIN_LAT_ERROR : Origin latitude outside of valid range
* (-90 to 90 degrees)
* TRANMERC_CENT_MER_ERROR : Central meridian outside of valid range
* (-180 to 360 degrees)
* TRANMERC_A_ERROR : Semi-major axis less than or equal to zero
* TRANMERC_INV_F_ERROR : Inverse flattening outside of valid range
* (250 to 350)
* TRANMERC_SCALE_FACTOR_ERROR : Scale factor outside of valid
* range (0.3 to 3.0)
* TM_LON_WARNING : Distortion will result if longitude is more
* than 9 degrees from the Central Meridian
*
* REUSE NOTES
*
* TRANSVERSE MERCATOR is intended for reuse by any application that
* performs a Transverse Mercator projection or its inverse.
*
* REFERENCES
*
* Further information on TRANSVERSE MERCATOR can be found in the
* Reuse Manual.
*
* TRANSVERSE MERCATOR 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
*
* TRANSVERSE MERCATOR has no restrictions.
*
* ENVIRONMENT
*
* TRANSVERSE MERCATOR 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
* ---- -----------
* 10-02-97 Original Code
* 03-02-97 Re-engineered Code
*
*/
/***************************************************************************/
/*
* DEFINES
*/
#define TRANMERC_NO_ERROR 0x0000
#define TRANMERC_LAT_ERROR 0x0001
#define TRANMERC_LON_ERROR 0x0002
#define TRANMERC_EASTING_ERROR 0x0004
#define TRANMERC_NORTHING_ERROR 0x0008
#define TRANMERC_ORIGIN_LAT_ERROR 0x0010
#define TRANMERC_CENT_MER_ERROR 0x0020
#define TRANMERC_A_ERROR 0x0040
#define TRANMERC_INV_F_ERROR 0x0080
#define TRANMERC_SCALE_FACTOR_ERROR 0x0100
#define TRANMERC_LON_WARNING 0x0200
/***************************************************************************/
/*
* FUNCTION PROTOTYPES
* for TRANMERC.C
*/
/* ensure proper linkage to c++ programs */
#ifdef __cplusplus
extern "C" {
#endif
long Set_Transverse_Mercator_Parameters(double a,
double f,
double Origin_Latitude,
double Central_Meridian,
double False_Easting,
double False_Northing,
double Scale_Factor);
/*
* The function Set_Tranverse_Mercator_Parameters receives the ellipsoid
* parameters and Tranverse Mercator projection parameters as inputs, and
* sets the corresponding state variables. If any errors occur, the error
* code(s) are returned by the function, otherwise TRANMERC_NO_ERROR is
* returned.
*
* a : Semi-major axis of ellipsoid, in meters (input)
* f : Flattening of ellipsoid (input)
* Origin_Latitude : Latitude in radians at the origin of the (input)
* projection
* Central_Meridian : Longitude in radians at the center of the (input)
* projection
* False_Easting : Easting/X at the center of the projection (input)
* False_Northing : Northing/Y at the center of the projection (input)
* Scale_Factor : Projection scale factor (input)
*/
void Get_Transverse_Mercator_Parameters(double *a,
double *f,
double *Origin_Latitude,
double *Central_Meridian,
double *False_Easting,
double *False_Northing,
double *Scale_Factor);
/*
* The function Get_Transverse_Mercator_Parameters returns the current
* ellipsoid and Transverse Mercator projection parameters.
*
* a : Semi-major axis of ellipsoid, in meters (output)
* f : Flattening of ellipsoid (output)
* Origin_Latitude : Latitude in radians at the origin of the (output)
* projection
* Central_Meridian : Longitude in radians at the center of the (output)
* projection
* False_Easting : Easting/X at the center of the projection (output)
* False_Northing : Northing/Y at the center of the projection (output)
* Scale_Factor : Projection scale factor (output)
*/
long Convert_Geodetic_To_Transverse_Mercator (double Latitude,
double Longitude,
double *Easting,
double *Northing);
/*
* The function Convert_Geodetic_To_Transverse_Mercator converts geodetic
* (latitude and longitude) coordinates to Transverse Mercator projection
* (easting and northing) coordinates, according to the current ellipsoid
* and Transverse Mercator projection coordinates. If any errors occur, the
* error code(s) are returned by the function, otherwise TRANMERC_NO_ERROR is
* returned.
*
* Latitude : Latitude in radians (input)
* Longitude : Longitude in radians (input)
* Easting : Easting/X in meters (output)
* Northing : Northing/Y in meters (output)
*/
long Convert_Transverse_Mercator_To_Geodetic (double Easting,
double Northing,
double *Latitude,
double *Longitude);
/*
* The function Convert_Transverse_Mercator_To_Geodetic converts Transverse
* Mercator projection (easting and northing) coordinates to geodetic
* (latitude and longitude) coordinates, according to the current ellipsoid
* and Transverse Mercator projection parameters. If any errors occur, the
* error code(s) are returned by the function, otherwise TRANMERC_NO_ERROR is
* returned.
*
* 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 /* TRANMERC_H */
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