/usr/include/ossim/projection/ossimTransMercatorProjection.h is in libossim-dev 1.7.21-4.
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 Transverse Mercator projection code.
//*******************************************************************
// $Id: ossimTransMercatorProjection.h 9968 2006-11-29 14:01:53Z gpotts $
#ifndef ossimTransMercatorProjection_HEADER
#define ossimTransMercatorProjection_HEADER
#include <ossim/projection/ossimMapProjection.h>
class ossimTransMercatorProjection : public ossimMapProjection
{
public:
ossimTransMercatorProjection(const ossimEllipsoid& ellipsoid = ossimEllipsoid(6378137, 6356752.3142),
const ossimGpt& origin = ossimGpt());
ossimTransMercatorProjection(const ossimEllipsoid& ellipsoid,
const ossimGpt& origin,
double falseEasting,
double falseNorthing,
double scaleFactor);
~ossimTransMercatorProjection(){}
virtual ossimObject *dup()const{return new ossimTransMercatorProjection(*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);
/*
* Set's scale and then update.
*/
void setScaleFactor(double scaleFactor);
/*!
* 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 setParameters(double falseEasting,
double falseNorthing,
double scaleFactor);
void setDefaults();
double getFalseEasting()const{return TranMerc_False_Easting;}
double getFalseNorthing()const{return TranMerc_False_Northing;}
double getScaleFactor()const{return TranMerc_Scale_Factor;}
/*!
* 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);
/*!
* Prints data members to stream. Returns stream&.
*/
virtual std::ostream& print(std::ostream& out) const;
protected:
//_____________GEOTRANS_______________
double TranMerc_a; /* Semi-major axis of ellipsoid i meters */
double TranMerc_f; /* Flattening of ellipsoid */
double TranMerc_es; /* Eccentricity (0.08181919084262188000) squared */
double TranMerc_ebs; /* Second Eccentricity squared */
/* Transverse_Mercator projection Parameters */
double TranMerc_Origin_Lat; /* Latitude of origin in radians */
double TranMerc_Origin_Long; /* Longitude of origin in radians */
double TranMerc_False_Northing; /* False northing in meters */
double TranMerc_False_Easting; /* False easting in meters */
double TranMerc_Scale_Factor; /* Scale factor */
/* Isometeric to geodetic latitude parameters, default to WGS 84 */
double TranMerc_ap;
double TranMerc_bp;
double TranMerc_cp;
double TranMerc_dp;
double TranMerc_ep;
/* Maximum variance for easting and northing values for WGS 84. */
double TranMerc_Delta_Easting;
double TranMerc_Delta_Northing;
/*!
* The function Set_Tranverse_Mercator_Parameters receives the ellipsoid
* parameters and Tranverse Mercator projection parameters as inputs, and
* sets the corresponding state variables. If any errors occur, the error
* code(s) are returned by the function, otherwise TRANMERC_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 origin of the (input)
* projection
* Central_Meridian : Longitude in radians at the center of the (input)
* projection
* False_Easting : Easting/X at the center of the projection (input)
* False_Northing : Northing/Y at the center of the projection (input)
* Scale_Factor : Projection scale factor (input)
*/
long Set_Transverse_Mercator_Parameters(double a,
double f,
double Origin_Latitude,
double Central_Meridian,
double False_Easting,
double False_Northing,
double Scale_Factor);
/*!
* The function Get_Transverse_Mercator_Parameters returns the current
* ellipsoid and Transverse Mercator projection parameters.
*
* a : Semi-major axis of ellipsoid, in meters (output)
* f : Flattening of ellipsoid (output)
* Origin_Latitude : Latitude in radians at the origin of the (output)
* projection
* Central_Meridian : Longitude in radians at the center of the (output)
* projection
* False_Easting : Easting/X at the center of the projection (output)
* False_Northing : Northing/Y at the center of the projection (output)
* Scale_Factor : Projection scale factor (output)
*/
void Get_Transverse_Mercator_Parameters(double *a,
double *f,
double *Origin_Latitude,
double *Central_Meridian,
double *False_Easting,
double *False_Northing,
double *Scale_Factor)const;
/*!
* The function Convert_Geodetic_To_Transverse_Mercator converts geodetic
* (latitude and longitude) coordinates to Transverse Mercator projection
* (easting and northing) coordinates, according to the current ellipsoid
* and Transverse Mercator projection coordinates. If any errors occur, the
* error code(s) are returned by the function, otherwise TRANMERC_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_Transverse_Mercator (double Latitude,
double Longitude,
double *Easting,
double *Northing)const;
/*!
* The function Convert_Transverse_Mercator_To_Geodetic converts Transverse
* Mercator projection (easting and northing) coordinates to geodetic
* (latitude and longitude) coordinates, according to the current ellipsoid
* and Transverse Mercator projection parameters. If any errors occur, the
* error code(s) are returned by the function, otherwise TRANMERC_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_Transverse_Mercator_To_Geodetic (double Easting,
double Northing,
double *Latitude,
double *Longitude)const;
TYPE_DATA
};
#endif
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