ups.h
资源名称:QGIS.rar [点击查看]
上传用户:oybseng
上传日期:2015-04-27
资源大小:7831k
文件大小:6k
源码类别:
GDI/图象编程
开发平台:
Visual 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 */