/usr/include/ossim/projection/ossimLambertConformalConicProjection.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
//
// Description:
//
// Calls Lamberts Conformal Conic projection code.
//*******************************************************************
// $Id: ossimLambertConformalConicProjection.h 12508 2008-02-25 18:38:09Z dburken $
#ifndef ossimLambertConformalConicProjection_HEADER
#define ossimLambertConformalConicProjection_HEADER
#include <iosfwd>
#include <ossim/projection/ossimMapProjection.h>
class ossimLambertConformalConicProjection : public ossimMapProjection
{
public:
ossimLambertConformalConicProjection(const ossimEllipsoid& ellipsoid = ossimEllipsoid(),
const ossimGpt& origin = ossimGpt());
/**
* @param ellipsoid
* @param origin latitude longitude in decimal degrees.
* @param stdParallel1 First parallel in radians.
* @param stdParallel2 Second parallel in radian.
* @param falseEasting False easting in meters.
* @param falseNorthing False northing in meters.
*/
ossimLambertConformalConicProjection(const ossimEllipsoid& ellipsoid,
const ossimGpt& origin,
double stdParallel1,
double stdParallel2,
double falseEasting,
double falseNorthing);
virtual ~ossimLambertConformalConicProjection();
virtual ossimObject *dup()const;
virtual ossimGpt inverse(const ossimDpt &eastingNorthing)const;
virtual ossimDpt forward(const ossimGpt &latLon)const;
virtual void update();
/*!
* The passed in Argument is in degrees and will convert it to radians
* for Geotrans. Update is then called so we can pre-compute paramters.
*/
void setStandardParallel1(double degree);
/*!
* The passed in Argument is in degrees and will convert it to radians
* for Geotrans. Update is then called so we can pre-compute paramters
*/
void setStandardParallel2(double degree);
/*!
* Will allow you to set both parallels. both are passed in degrees.
*/
void setStandardParallels(double parallel1Degree,
double prallel2Degree);
/*!
* 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);
/**
* @brief Allows one to set all parameters for this projections.
* Update is then called so we can pre-compute paramters.
* @param stdParallel1 First parallel in decimal degrees.
* @param stdParallel2 Second parallel in decimal degrees.
* @param falseEasting False easting in meters.
* @param falseNorthing False northing in meters.
*/
void setParameters(double parallel1,
double parallel2,
double falseEasting,
double falseNorthing);
/** @returns the first standard parallel in decimal degrees. */
virtual double getStandardParallel1() const;
/** @returns the second standard parallel in decimal degrees. */
virtual double getStandardParallel2() const;
void setDefaults();
/*!
* 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);
/**
* @brief Prints data members to stream. Returns stream&.
*/
virtual std::ostream& print(std::ostream& out) const;
private:
//_______________GEOTRANS____________________
mutable double Lambert_a; /* Semi-major axis of ellipsoid, in meters */
mutable double Lambert_f; /* Flattening of ellipsoid */
mutable double es; /* Eccentricity of ellipsoid */
mutable double es2; /* Eccentricity squared */
mutable double es_OVER_2; /* Eccentricity / 2.0 */
mutable double n; /* Ratio of angle between meridians */
mutable double F; /* Flattening of ellipsoid */
mutable double rho0; /* Height above ellipsoid */
mutable double Lambert_aF; /* Lambert_a * F */
/* Lambert_Conformal_Conic projection Parameters */
mutable double Lambert_Std_Parallel_1; /* Lower std. parallel, in radians */
mutable double Lambert_Std_Parallel_2; /* Upper std. parallel, in radians */
mutable double Lambert_Origin_Lat; /* Latitude of origin, in radians */
mutable double Lambert_Origin_Long; /* Longitude of origin, in radians */
mutable double Lambert_False_Northing; /* False northing, in meters */
mutable double Lambert_False_Easting; /* False easting, in meters */
/*!
* The function Set_Lambert_Parameters receives the ellipsoid parameters and
* Lambert Conformal Conic projection parameters as inputs, and sets the
* corresponding state variables. If any errors occur, the error code(s)
* are returned by the function, otherwise LAMBERT_NO_ERROR is returned.
*
* a : Semi-major axis of ellipsoid, in meters (input)
* f : Flattening of ellipsoid (input)
* Origin_Latitude : Latitude of origin in radians (input)
* Central_Meridian : Longitude of origin in radians (input)
* Std_Parallel_1 : First standard parallel (input)
* Std_Parallel_2 : Second standard parallel (input)
* False_Easting : False easting in meters (input)
* False_Northing : False northing in meters (input)
*/
long Set_Lambert_Parameters(double a,
double f,
double Origin_Latitude,
double Central_Meridian,
double Std_Parallel_1,
double Std_Parallel_2,
double False_Easting,
double False_Northing);
/*!
* The function Get_Lambert_Parameters returns the current ellipsoid
* parameters and Lambert Conformal Conic projection parameters.
*
* a : Semi-major axis of ellipsoid, in meters (output)
* f : Flattening of ellipsoid (output)
* Origin_Latitude : Latitude of origin, in radians (output)
* Central_Meridian : Longitude of origin, in radians (output)
* Std_Parallel_1 : First standard parallel (output)
* Std_Parallel_2 : Second standard parallel (output)
* False_Easting : False easting, in meters (output)
* False_Northing : False northing, in meters (output)
*/
void Get_Lambert_Parameters(double *a,
double *f,
double *Origin_Latitude,
double *Central_Meridian,
double *Std_Parallel_1,
double *Std_Parallel_2,
double *False_Easting,
double *False_Northing)const;
/*!
* The function Convert_Geodetic_To_Lambert converts Geodetic (latitude and
* longitude) coordinates to Lambert Conformal Conic projection (easting
* and northing) coordinates, according to the current ellipsoid and
* Lambert Conformal Conic projection parameters. If any errors occur, the
* error code(s) are returned by the function, otherwise LAMBERT_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_Lambert (double Latitude,
double Longitude,
double *Easting,
double *Northing)const;
/*!
* The function Convert_Lambert_To_Geodetic converts Lambert Conformal
* Conic projection (easting and northing) coordinates to Geodetic
* (latitude and longitude) coordinates, according to the current ellipsoid
* and Lambert Conformal Conic projection parameters. If any errors occur,
* the error code(s) are returned by the function, otherwise LAMBERT_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_Lambert_To_Geodetic (double Easting,
double Northing,
double *Latitude,
double *Longitude)const;
TYPE_DATA
};
#endif
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