/usr/include/ossim/projection/ossimMollweidProjection.h is in libossim-dev 1.8.16-3+b1.
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//
// License: See top level LICENSE.txt file.
//
// Author: Garrett Potts (gpotts@imagelinks.com)
//
// Description:
//
// Calls Geotrans Mollweid projection code.
//*******************************************************************
// $Id: ossimMollweidProjection.h 17815 2010-08-03 13:23:14Z dburken $
#ifndef ossimMollweidProojection_HEADER
#define ossimMollweidProojection_HEADER
#include <ossim/projection/ossimMapProjection.h>
class OSSIMDLLEXPORT ossimMollweidProjection : public ossimMapProjection
{
public:
ossimMollweidProjection(const ossimEllipsoid& ellipsoid = ossimEllipsoid(),
const ossimGpt& origin = ossimGpt());
ossimMollweidProjection(const ossimEllipsoid& ellipsoid,
const ossimGpt& origin,
const double falseEasting,
const double falseNorthing);
~ossimMollweidProjection(){}
virtual ossimObject *dup()const{return new ossimMollweidProjection(*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();
void setCentralMeridian(double centralMeridian);
double getFalseEasting()const{return Moll_False_Easting;}
double getFalseNorthing()const{return Moll_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);
//! Returns TRUE if principal parameters are within epsilon tolerance.
virtual bool operator==(const ossimProjection& projection) const;
private:
//__________________GEOTRANS______________________
mutable double Moll_a; /* Semi-major axis of ellipsoid in meters */
mutable double Moll_f; /* Flattening of ellipsoid */
mutable double es2; /* Eccentricity (0.08181919084262188000) squared */
mutable double es4; /* es2 * es2 */
mutable double es6; /* es4 * es2 */
mutable double Sqrt2_Ra; /* sqrt(2.0) * Spherical Radius(6371007.1810824) */
mutable double Sqrt8_Ra; /* sqrt(8.0) * Spherical Radius(6371007.1810824) */
/* Mollweide projection Parameters */
mutable double Moll_Origin_Long; /* Longitude of origin in radians */
mutable double Moll_False_Easting;
mutable double Moll_False_Northing;
mutable double Moll_Delta_Northing;
mutable double Moll_Max_Easting;
mutable double Moll_Min_Easting;
/*!
* The function Set_Mollweide_Parameters receives the ellipsoid parameters and
* Mollweide projcetion parameters as inputs, and sets the corresponding state
* variables. If any errors occur, the error code(s) are returned by the
* function, otherwise MOLL_NO_ERROR is returned.
*
* a : Semi-major axis of ellipsoid, in meters (input)
* f : Flattening of ellipsoid (input)
* Central_Meridian : Longitude in radians at the center of (input)
* the projection
* False_Easting : A coordinate value in meters assigned to the
* central meridian of the projection. (input)
* False_Northing : A coordinate value in meters assigned to the
* origin latitude of the projection (input)
*/
long Set_Mollweide_Parameters(double a,
double f,
double Central_Meridian,
double False_Easting,
double False_Northing);
/*!
* The function Get_Mollweide_Parameters returns the current ellipsoid
* parameters and Mollweide projection parameters.
*
* a : Semi-major axis of ellipsoid, in meters (output)
* f : Flattening of ellipsoid (output)
* 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)
*/
void Get_Mollweide_Parameters(double *a,
double *f,
double *Central_Meridian,
double *False_Easting,
double *False_Northing)const;
/*!
* The function Convert_Geodetic_To_Mollweide converts geodetic (latitude and
* longitude) coordinates to Mollweide projection easting, and northing
* coordinates, according to the current ellipsoid and Mollweide projection
* parameters. If any errors occur, the error code(s) are returned by the
* function, otherwise MOLL_NO_ERROR is returned.
*
* Latitude : Latitude (phi) in radians (input)
* Longitude : Longitude (lambda) in radians (input)
* Easting : Easting (X) in meters (output)
* Northing : Northing (Y) in meters (output)
*/
long Convert_Geodetic_To_Mollweide (double Latitude,
double Longitude,
double *Easting,
double *Northing)const;
/*!
* The function Convert_Mollweide_To_Geodetic converts Mollweide projection
* easting and northing coordinates to geodetic (latitude and longitude)
* coordinates, according to the current ellipsoid and Mollweide projection
* coordinates. If any errors occur, the error code(s) are returned by the
* function, otherwise MOLL_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)
*/
long Convert_Mollweide_To_Geodetic(double Easting,
double Northing,
double *Latitude,
double *Longitude)const;
TYPE_DATA
};
#endif
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