/usr/include/ossim/projection/ossimGnomonicProjection.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.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 | //*******************************************************************
//
// License: See top level LICENSE.txt file.
//
// Author: Garrett Potts (gpotts@imagelinks.com)
//
// Description:
//
//*******************************************************************
// $Id: ossimGnomonicProjection.h 9968 2006-11-29 14:01:53Z gpotts $
#ifndef ossimGnomonicProjection_HEADER
#define ossimGnomonicProjection_HEADER
#include <ossim/projection/ossimMapProjection.h>
class ossimGnomonicProjection : public ossimMapProjection
{
public:
ossimGnomonicProjection(const ossimEllipsoid& ellipsoid = ossimEllipsoid(),
const ossimGpt& origin = ossimGpt());
ossimGnomonicProjection(const ossimEllipsoid& ellipsoid,
const ossimGpt& origin,
const double falseEasting,
const double falseNorthing);
~ossimGnomonicProjection(){}
virtual ossimObject *dup()const
{
return new ossimGnomonicProjection(*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 Gnom_False_Easting;}
double getFalseNorthing()const{return Gnom_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);
protected:
//__________________________GEOTRANS________________________
mutable double Gnom_a; /* Semi-major axis of ellipsoid in meters */
mutable double Gnom_f; /* Flattening of ellipsoid */
mutable double Ra; /* Spherical Radius */
mutable double Sin_Gnom_Origin_Lat;
mutable double Cos_Gnom_Origin_Lat;
/* Gnomonic projection Parameters */
mutable double Gnom_Origin_Lat; /* Latitude of origin in radians */
mutable double Gnom_Origin_Long; /* Longitude of origin in radians */
mutable double Gnom_False_Northing; /* False northing in meters */
mutable double Gnom_False_Easting; /* False easting in meters */
mutable double abs_Gnom_Origin_Lat;
mutable double Gnom_Delta_Northing;
mutable double Gnom_Delta_Easting;
/*
* The function Set_Gnomonic_Parameters receives the ellipsoid parameters and
* projection parameters as inputs, and sets the corresponding state
* variables. If any errors occur, the error code(s) are returned by the function,
* otherwise GNOM_NO_ERROR is returned.
*
* a : Semi-major axis of ellipsoid, in meters (input)
* f : Flattening of ellipsoid (input)
* Origin_Latitude : Latitude in radians at which the (input)
* point scale factor is 1.0
* 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_Gnomonic_Parameters(double a,
double f,
double Origin_Latitude,
double Central_Meridian,
double False_Easting,
double False_Northing);
/*!
* The function Get_Gnomonic_Parameters returns the current ellipsoid
* parameters and Gnomonic projection parameters.
*
* a : Semi-major axis of ellipsoid, in meters (output)
* f : Flattening of ellipsoid (output)
* Origin_Latitude : Latitude in radians at which the (output)
* point scale factor is 1.0
* 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_Gnomonic_Parameters(double *a,
double *f,
double *Origin_Latitude,
double *Central_Meridian,
double *False_Easting,
double *False_Northing)const;
/*!
* The function Convert_Geodetic_To_Gnomonic converts geodetic (latitude and
* longitude) coordinates to Gnomonic projection (easting and northing)
* coordinates, according to the current ellipsoid and Gnomonic projection
* parameters. If any errors occur, the error code(s) are returned by the
* function, otherwise GNOM_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_Gnomonic (double Latitude,
double Longitude,
double *Easting,
double *Northing)const;
/*!
* The function Convert_Gnomonic_To_Geodetic converts Gnomonic projection
* (easting and northing) coordinates to geodetic (latitude and longitude)
* coordinates, according to the current ellipsoid and Gnomonic projection
* coordinates. If any errors occur, the error code(s) are returned by the
* function, otherwise GNOM_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_Gnomonic_To_Geodetic(double Easting,
double Northing,
double *Latitude,
double *Longitude)const;
TYPE_DATA
};
#endif
|