georef.h
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上传用户:oybseng
上传日期:2015-04-27
资源大小:7831k
文件大小:5k
源码类别:
GDI/图象编程
开发平台:
Visual C++
- #ifndef GEOREF_H
- #define GEOREF_H
- /***************************************************************************/
- /* RSC IDENTIFIER: GEOREF
- *
- * ABSTRACT
- *
- * This component provides conversions from Geodetic coordinates (latitude
- * and longitude in radians) to a GEOREF coordinate string.
- *
- * 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:
- *
- * GEOREF_NO_ERROR : No errors occurred in function
- * GEOREF_LAT_ERROR : Latitude outside of valid range
- * (-90 to 90 degrees)
- * GEOREF_LON_ERROR : Longitude outside of valid range
- * (-180 to 360 degrees)
- * GEOREF_STR_ERROR : A GEOREF string error: string too long,
- * string too short, or string length
- * not even.
- * GEOREF_STR_LAT_ERROR : The latitude part of the GEOREF string
- * (second or fourth character) is invalid.
- * GEOREF_STR_LON_ERROR : The longitude part of the GEOREF string
- * (first or third character) is invalid.
- * GEOREF_STR_LAT_MIN_ERROR : The latitude minute part of the GEOREF
- * string is greater than 60.
- * GEOREF_STR_LON_MIN_ERROR : The longitude minute part of the GEOREF
- * string is greater than 60.
- * GEOREF_PRECISION_ERROR : The precision must be between 0 and 5
- * inclusive.
- *
- * REUSE NOTES
- *
- * GEOREF is intended for reuse by any application that performs a
- * conversion between Geodetic and GEOREF coordinates.
- *
- * REFERENCES
- *
- * Further information on GEOREF can be found in the Reuse Manual.
- *
- * GEOREF 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
- *
- * GEOREF has no restrictions.
- *
- * ENVIRONMENT
- *
- * GEOREF 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
- * ---- -----------
- * 20-02-97 Original Code
- */
- /***************************************************************************/
- /*
- * DEFINES
- */
- #define GEOREF_NO_ERROR 0x0000
- #define GEOREF_LAT_ERROR 0x0001
- #define GEOREF_LON_ERROR 0x0002
- #define GEOREF_STR_ERROR 0x0004
- #define GEOREF_STR_LAT_ERROR 0x0008
- #define GEOREF_STR_LON_ERROR 0x0010
- #define GEOREF_STR_LAT_MIN_ERROR 0x0020
- #define GEOREF_STR_LON_MIN_ERROR 0x0040
- #define GEOREF_PRECISION_ERROR 0x0080
- /***************************************************************************/
- /*
- * FUNCTION PROTOTYPES
- * for georef.c
- */
- /* ensure proper linkage to c++ programs */
- #ifdef __cplusplus
- extern "C" {
- #endif
- long Convert_Geodetic_To_GEOREF (double Latitude,
- double Longitude,
- long Precision,
- char *Georef);
- /*
- * This function converts Geodetic (latitude and longitude in radians)
- * coordinates to a GEOREF coordinate string. Precision specifies the
- * number of digits in the GEOREF string for latitude and longitude:
- * 0 for nearest degree
- * 1 for nearest 10 minutes
- * 2 for nearest minute
- * 3 for nearest tenth of a minute
- * 4 for nearest hundredth of a minute
- * 5 for nearest thousandth of a minute
- *
- * Latitude : Latitude in radians (input)
- * Longitude : Longitude in radians (input)
- * Precision : level of precision specified by the user (input)
- * Georef : GEOREF coordinate string (output)
- */
- long Convert_GEOREF_To_Geodetic (char *Georef,
- double *Latitude,
- double *Longitude);
- /*
- * This function converts a GEOREF coordinate string to Geodetic (latitude
- * and longitude in radians) coordinates.
- *
- * Georef : GEOREF coordinate string (input)
- * Latitude : Latitude in radians (output)
- * Longitude : Longitude in radians (output)
- */
- #ifdef __cplusplus
- }
- #endif
- #endif /* GEOREF_H */