stereogr.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:8k
源码类别:
GDI/图象编程
开发平台:
Visual C++
- #ifndef STEREOGR_H
- #define STEREOGR_H
- /***************************************************************************/
- /* RSC IDENTIFIER: STEREOGRAPHIC
- *
- *
- * ABSTRACT
- *
- * This component provides conversions between geodetic (latitude and
- * longitude) coordinates and Stereographic (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:
- *
- * STEREO_NO_ERROR : No errors occurred in function
- * STEREO_LAT_ERROR : Latitude outside of valid range
- * (-90 to 90 degrees)
- * STEREO_LON_ERROR : Longitude outside of valid range
- * (-180 to 360 degrees)
- * STEREO_ORIGIN_LAT_ERROR : Origin latitude outside of valid range
- * (-90 to 90 degrees)
- * STEREO_CENT_MER_ERROR : Central meridian outside of valid range
- * (-180 to 360 degrees)
- * STEREO_EASTING_ERROR : Easting outside of valid range,
- * (False_Easting +/- ~1,460,090,226 m,
- * depending on ellipsoid and projection
- * parameters)
- * STEREO_NORTHING_ERROR : Northing outside of valid range,
- * (False_Northing +/- ~1,460,090,226 m,
- * depending on ellipsoid and projection
- * parameters)
- * STEREO_A_ERROR : Semi-major axis less than or equal to zero
- * STEREO_INV_F_ERROR : Inverse flattening outside of valid range
- * (250 to 350)
- *
- *
- * REUSE NOTES
- *
- * STEREOGRAPHIC is intended for reuse by any application that
- * performs a Stereographic projection.
- *
- *
- * REFERENCES
- *
- * Further information on STEREOGRAPHIC can be found in the
- * Reuse Manual.
- *
- *
- * STEREOGRAPHIC 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
- *
- * STEREOGRAPHIC has no restrictions.
- *
- *
- * ENVIRONMENT
- *
- * STEREOGRAPHIC was tested and certified in the following
- * environments:
- *
- * 1. Solaris 2.5 with GCC, version 2.8.1
- * 2. Window 95 with MS Visual C++, version 6
- *
- *
- * MODIFICATIONS
- *
- * Date Description
- * ---- -----------
- * 7/26/00 Original Code
- *
- */
- /**********************************************************************/
- /*
- * DEFINES
- */
- #define STEREO_NO_ERROR 0x0000
- #define STEREO_LAT_ERROR 0x0001
- #define STEREO_LON_ERROR 0x0002
- #define STEREO_ORIGIN_LAT_ERROR 0x0004
- #define STEREO_CENT_MER_ERROR 0x0008
- #define STEREO_EASTING_ERROR 0x0010
- #define STEREO_NORTHING_ERROR 0x0020
- #define STEREO_A_ERROR 0x0040
- #define STEREO_INV_F_ERROR 0x0080
- /**********************************************************************/
- /*
- * FUNCTION PROTOTYPES
- */
- /* ensure proper linkage to c++ programs */
- #ifdef __cplusplus
- extern "C" {
- #endif
- long Set_Stereographic_Parameters (double a,
- double f,
- double Origin_Latitude,
- double Central_Meridian,
- double False_Easting,
- double False_Northing);
- /*
- * The function Set_Stereographic_Parameters receives the ellipsoid
- * parameters and Stereograpic projection parameters as inputs, and
- * sets the corresponding state variables. If any errors occur, error
- * code(s) are returned by the function, otherwise STEREO_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 center of (input)
- * the projection
- * Central_Meridian : Longitude, in radians, at the center of (input)
- * the projection
- * False_Easting : Easting (X) at center of projection, in meters (input)
- * False_Northing : Northing (Y) at center of projection, in meters (input)
- */
- void Get_Stereographic_Parameters(double *a,
- double *f,
- double *Origin_Latitude,
- double *Central_Meridian,
- double *False_Easting,
- double *False_Northing);
- /*
- * The function Get_Stereographic_Parameters returns the current ellipsoid
- * parameters and Stereographic projection parameters.
- *
- * a : Semi-major axis of ellipsoid, in meters (output)
- * f : Flattening of ellipsoid (output)
- * Origin_Latitude : Latitude, in radians, at the center of (output)
- * the projection
- * Central_Meridian : Longitude, in radians, at the center of (output)
- * the projection
- * False_Easting : A coordinate value, in meters, assigned to the
- * central meridian of the projection. (output)
- * False_Northing : A coordinate value, in meters, assigned to the
- * origin latitude of the projection (output)
- */
- long Convert_Geodetic_To_Stereographic (double Latitude,
- double Longitude,
- double *Easting,
- double *Northing);
- /*
- * The function Convert_Geodetic_To_Stereographic converts geodetic
- * coordinates (latitude and longitude) to Stereographic coordinates
- * (easting and northing), according to the current ellipsoid
- * and Stereographic projection parameters. If any errors occur, error
- * code(s) are returned by the function, otherwise STEREO_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_Stereographic_To_Geodetic(double Easting,
- double Northing,
- double *Latitude,
- double *Longitude);
- /*
- * The function Convert_Stereographic_To_Geodetic converts Stereographic projection
- * (easting and northing) coordinates to geodetic (latitude and longitude)
- * coordinates, according to the current ellipsoid and Stereographic projection
- * coordinates. If any errors occur, the error code(s) are returned by the
- * function, otherwise STEREO_NO_ERROR is returned.
- *
- * Easting : Easting (X), in meters (input)
- * Northing : Northing (Y), in meters (input)
- * Latitude : Latitude (phi), in radians (output)
- * Longitude : Longitude (lambda), in radians (output)
- */
- #ifdef __cplusplus
- }
- #endif
- #endif /* STEREOGR_H */