/usr/include/ossim/projection/ossimBngProjection.h is in libossim-dev 1.7.21-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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//
// License: See top level LICENSE.txt file.
//
// Author: Garrett Potts (gpotts@imagelinks.com)
//
//*******************************************************************
// $Id: ossimBngProjection.h 9968 2006-11-29 14:01:53Z gpotts $
#include <ossim/projection/ossimMapProjection.h>
class OSSIMDLLEXPORT ossimBngProjection : public ossimMapProjection
{
public:
ossimBngProjection();
virtual ossimObject* dup()const
{
return new ossimBngProjection(*this);
}
virtual ossimGpt inverse(const ossimDpt &eastingNorthing)const;
virtual ossimDpt forward(const ossimGpt &latLon)const;
virtual void update();
/*!
* Method to save the state of an object to a keyword list.
* Return true if ok or false on error.
*/
virtual bool saveState(ossimKeywordlist& kwl,
const char* prefix=0)const;
/*!
* Method to the load (recreate) the state of an object from a keyword
* list. Return true if ok or false on error.
*/
virtual bool loadState(const ossimKeywordlist& kwl,
const char* prefix=0);
protected:
/* Ellipsoid Parameters, must be Airy */
double BNG_a; /* Semi-major axis of ellipsoid, in meters */
double BNG_f; /* Flattening of ellipsoid */
/* BNG projection Parameters */
double BNG_Origin_Lat; /* Latitude of origin, in radians */
double BNG_Origin_Long; /* Longitude of origin, in radians */
double BNG_False_Northing; /* False northing, in meters */
double BNG_False_Easting; /* False easting, in meters */
double BNG_Scale_Factor; /* Scale factor */
mutable long string_Broken;
long Find_Index (char letter,
const char* letter_Array,
long *index)const;
long Round_BNG (double value)const;
long Make_BNG_String (char ltrnum[4],
long Easting,
long Northing,
char* BNG,
long Precision)const;
long Break_BNG_String (char* BNG,
char Letters[3],
double* Easting,
double* Northing,
long* Precision)const;
long Check_Out_Of_Area(char BNG500,
char BNG100)const;
long Set_BNG_Parameters(char *Ellipsoid_Code);
void Get_BNG_Parameters(char *Ellipsoid_Code);
/*!
* The function Convert_Geodetic_To_BNG converts geodetic (latitude and
* longitude) coordinates to a BNG coordinate string, according to the
* current ellipsoid parameters. If any errors occur, the error code(s)
* are returned by the function, otherwise BNG_NO_ERROR is returned.
*
* Latitude : Latitude, in radians (input)
* Longitude : Longitude, in radians (input)
* Precision : Precision level of BNG string (input)
* BNG : British National Grid coordinate string (output)
*
*/
long Convert_Geodetic_To_BNG (double Latitude,
double Longitude,
long Precision,
char* BNG)const;
/*!
* The function Convert_BNG_To_Geodetic converts a BNG coordinate string
* 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 BNG_NO_ERROR is returned.
*
* BNG : British National Grid coordinate string (input)
* Latitude : Latitude, in radians (output)
* Longitude : Longitude, in radians (output)
*
*/
long Convert_BNG_To_Geodetic (char *BNG,
double *Latitude,
double *Longitude)const;
/*!
* The function Convert_Transverse_Mercator_To_BNG converts Transverse Mercator
* (easting and northing) coordinates to a BNG coordinate string, according
* to the current ellipsoid parameters. If any errors occur, the error code(s)
* are returned by the function, otherwise BNG_NO_ERROR is returned.
*
* Easting : Easting (X), in meters (input)
* Northing : Northing (Y), in meters (input)
* Precision : Precision level of BNG string (input)
* BNG : British National Grid coordinate string (output)
*/
long Convert_Transverse_Mercator_To_BNG(double Easting,
double Northing,
long Precision,
char *BNG)const;
/*!
* The function Convert_BNG_To_Transverse_Mercator converts a BNG coordinate string
* to Transverse Mercator projection (easting and northing) coordinates
* according to the current ellipsoid parameters. If any errors occur,
* the error code(s) are returned by the function, otherwise BNG_NO_ERROR
* is returned.
*
* BNG : British National Grid coordinate string (input)
* Easting : Easting (X), in meters (output)
* Northing : Northing (Y), in meters (output)
*/
long Convert_BNG_To_Transverse_Mercator(char *BNG,
double *Easting,
double *Northing)const;
TYPE_DATA
};
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