/usr/include/ossim/projection/ossimPolarStereoProjection.h is in libossim-dev 1.7.21-3ubuntu2.
This file is owned by root:root, with mode 0o644.
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//
// License: See top level LICENSE.txt file.
//
// Author: Garrett Potts (gpotts@imagelinks.com)
//
// Description:
//
// Calls Geotrans Polar Stereographic projection code.
//*******************************************************************
// $Id: ossimPolarStereoProjection.h 9968 2006-11-29 14:01:53Z gpotts $
#ifndef ossimPolarStereoProjection_HEADER
#define ossimPolarStereoProjection_HEADER
#include <ossim/projection/ossimMapProjection.h>
class ossimPolarStereoProjection : public ossimMapProjection
{
public:
ossimPolarStereoProjection(const ossimEllipsoid& ellipsoid = ossimEllipsoid(),
const ossimGpt& origin = ossimGpt());
ossimPolarStereoProjection(const ossimEllipsoid& ellipsoid,
const ossimGpt& origin,
const double falseEasting,
const double falseNorthing);
~ossimPolarStereoProjection(){}
virtual ossimObject *dup()const{return new ossimPolarStereoProjection(*this);}
virtual ossimGpt inverse(const ossimDpt &eastingNorthing)const;
virtual ossimDpt forward(const ossimGpt &latLon)const;
virtual void update();
/*!
* SetFalseEasting. The value is in meters.
* Update is then called so we can pre-compute paramters
*/
void setFalseEasting(double falseEasting);
/*!
* SetFalseNorthing. The value is in meters.
* Update is then called so we can pre-compute paramters
*/
void setFalseNorthing(double falseNorthing);
/*!
* Sets both false easting and northing values. The values are
* expected to be in meters.
* Update is then called so we can pre-compute paramters
*/
void setFalseEastingNorthing(double falseEasting, double falseNorthing);
void setDefaults();
double getFalseEasting()const{return Polar_False_Easting;}
double getFalseNorthing()const{return Polar_False_Northing;}
/*!
* 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);
private:
mutable double Polar_a; /* Semi-major axis of ellipsoid in meters */
mutable double Polar_f; /* Flattening of ellipsoid */
mutable double es; /* Eccentricity of ellipsoid */
mutable double es_OVER_2; /* es / 2.0 */
mutable double Southern_Hemisphere; /* Flag variable */
mutable double mc;
mutable double tc;
mutable double e4;
mutable double Polar_a_mc; /* Polar_a * mc */
mutable double two_Polar_a; /* 2.0 * Polar_a */
/* Polar Stereographic projection Parameters */
mutable double Polar_Origin_Lat; /* Latitude of origin in radians */
mutable double Polar_Origin_Long; /* Longitude of origin in radians */
mutable double Polar_False_Easting; /* False easting in meters */
mutable double Polar_False_Northing; /* False northing in meters */
/* Maximum variance for easting and northing values for WGS 84. */
mutable double Polar_Delta_Easting;
mutable double Polar_Delta_Northing;
/*!
* The function Set_Polar_Stereographic_Parameters receives the ellipsoid
* parameters and Polar Stereograpic projection parameters as inputs, and
* sets the corresponding state variables. If any errors occur, error
* code(s) are returned by the function, otherwise POLAR_NO_ERROR is returned.
*
* a : Semi-major axis of ellipsoid, in meters (input)
* f : Flattening of ellipsoid (input)
* Latitude_of_True_Scale : Latitude of true scale, in radians (input)
* Longitude_Down_from_Pole : Longitude down from pole, in radians (input)
* False_Easting : Easting (X) at center of projection, in meters (input)
* False_Northing : Northing (Y) at center of projection, in meters (input)
*/
long Set_Polar_Stereographic_Parameters (double a,
double f,
double Latitude_of_True_Scale,
double Longitude_Down_from_Pole,
double False_Easting,
double False_Northing);
/*!
* The function Get_Polar_Stereographic_Parameters returns the current
* ellipsoid parameters and Polar projection parameters.
*
* a : Semi-major axis of ellipsoid, in meters (output)
* f : Flattening of ellipsoid (output)
* Latitude_of_True_Scale : Latitude of true scale, in radians (output)
* Longitude_Down_from_Pole : Longitude down from pole, in radians (output)
* False_Easting : Easting (X) at center of projection, in meters (output)
* False_Northing : Northing (Y) at center of projection, in meters (output)
*/
void Get_Polar_Stereographic_Parameters (double *a,
double *f,
double *Latitude_of_True_Scale,
double *Longitude_Down_from_Pole,
double *False_Easting,
double *False_Northing)const;
/*!
* The function Convert_Geodetic_To_Polar_Stereographic converts geodetic
* coordinates (latitude and longitude) to Polar Stereographic coordinates
* (easting and northing), according to the current ellipsoid
* and Polar Stereographic projection parameters. If any errors occur, error
* code(s) are returned by the function, otherwise POLAR_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_Geodetic_To_Polar_Stereographic (double Latitude,
double Longitude,
double *Easting,
double *Northing)const;
/*!
* The function Convert_Polar_Stereographic_To_Geodetic converts Polar
* Stereographic coordinates (easting and northing) to geodetic
* coordinates (latitude and longitude) according to the current ellipsoid
* and Polar Stereographic projection Parameters. If any errors occur, the
* code(s) are returned by the function, otherwise POLAR_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)
*
*/
long Convert_Polar_Stereographic_To_Geodetic (double Easting,
double Northing,
double *Latitude,
double *Longitude)const;
TYPE_DATA
};
#endif
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