ossimplugins::RectangularCoordinate Class Reference

This class represents a coordinate in a rectangular reference. More...

#include <RectangularCoordinate.h>

Inheritance diagram for ossimplugins::RectangularCoordinate:

Public Member Functions
	RectangularCoordinate ()
	Constructor. More...
	~RectangularCoordinate ()
	Destructor. More...
	RectangularCoordinate (double x, double y, double z)
	Cosntructor with initializations. More...
	RectangularCoordinate (const RectangularCoordinate &rhs)
	Copy constructor. More...
RectangularCoordinate &	operator= (const RectangularCoordinate &rhs)
	Affectation operator. More...
void	AsGeodesicCoordinates (double demiGdAxe, double demiPtAxe, GeodesicCoordinate *geod)
Public Member Functions inherited from ossimplugins::Coordinate
	Coordinate ()
	Constructor. More...
	~Coordinate ()
	Destructor. More...
	Coordinate (double x, double y, double z)
	Constructor with initializations. More...
	Coordinate (const Coordinate &rhs)
	Copy constructor. More...
Coordinate &	operator= (const Coordinate &rhs)
	Affectation operator. More...
void	set_coordinates (double x, double y, double z)
double	get_x ()
double	get_y ()
double	get_z ()

Additional Inherited Members
Protected Attributes inherited from ossimplugins::Coordinate
double	_x
double	_y
double	_z

Detailed Description

This class represents a coordinate in a rectangular reference.

Definition at line 27 of file RectangularCoordinate.h.

Constructor & Destructor Documentation

RectangularCoordinate() [1/3]

ossimplugins::RectangularCoordinate::RectangularCoordinate

(

)

Constructor.

Definition at line 21 of file RectangularCoordinate.cpp.

{
}

~RectangularCoordinate()

ossimplugins::RectangularCoordinate::~RectangularCoordinate

(

)

Destructor.

Definition at line 25 of file RectangularCoordinate.cpp.

{
}

RectangularCoordinate() [2/3]

ossimplugins::RectangularCoordinate::RectangularCoordinate	(	double	x,
		double	y,
		double	z
	)

Cosntructor with initializations.

Definition at line 29 of file RectangularCoordinate.cpp.

                                                                        : Coordinate(x,y,z)
{
}

RectangularCoordinate() [3/3]

ossimplugins::RectangularCoordinate::RectangularCoordinate

(

const RectangularCoordinate &

rhs

)

Copy constructor.

Definition at line 33 of file RectangularCoordinate.cpp.

                                                                            : Coordinate((Coordinate)rhs)
{
}

Member Function Documentation

AsGeodesicCoordinates()

void ossimplugins::RectangularCoordinate::AsGeodesicCoordinates	(	double	demiGdAxe,
		double	demiPtAxe,
		GeodesicCoordinate *	geod
	)

Definition at line 46 of file RectangularCoordinate.cpp.

References ossimplugins::Coordinate::_x, ossimplugins::Coordinate::_y, ossimplugins::Coordinate::_z, PI, and ossimplugins::Coordinate::set_coordinates().

Referenced by ossimplugins::SarSensor::ImageToWorld().

{
  const double PI          = 3.14159265358979323846 ;
  const int itmax = 40 ;
  const double epsilon = 1.0e-6 ;

  int fin , iter ;
  double u, a2_b2, d, e, f, df, c, s, p, q ;

  double coordCart[3];
  double coordGeod[3];

  coordCart[0] = _x;
  coordCart[1] = _y;
  coordCart[2] = _z;

  u = sqrt (coordCart[0] * coordCart[0] + coordCart[1] * coordCart[1]) ;
  if (u < epsilon)
  {
    coordGeod[0] = 0.0 ;
    if (coordCart[2] >= 0.0)
    coordGeod[1] = PI / 2.0 ;
    else
    coordGeod[1] = - PI / 2.0 ;
    coordGeod[2] = fabs (coordCart[2]) - demiPtAxe ;
  }
  else
  {
    coordGeod[0] = atan2 (coordCart[1] , coordCart[0]) ;
    a2_b2 = demiGdAxe * demiGdAxe - demiPtAxe * demiPtAxe ;
    e     = atan (coordCart[2] / u) ;
    fin   = 0 ;
    iter  = 0 ;
    while (fin == 0)
    {
      iter++ ;
      d  = e ;
      c  = cos (e) ;
      s  = sin (e) ;
      p  = demiGdAxe * u ;
      q  = demiPtAxe * coordCart[2] ;
      f  = p * s - q * c - a2_b2 * s * c ;
      df = p * c + q * s - a2_b2 * (c * c - s * s) ;
      e  = e - f / df ;
      d  = fabs (e - d) ;
      if ((d < epsilon) || (iter >= itmax))
        fin = 1 ;
    }
    coordGeod[1] = atan (tan (e) * demiGdAxe / demiPtAxe) ;

    p = cos(coordGeod[1]) ;

    if (fabs(coordGeod[1]) <= (PI * 0.5))
      coordGeod[2] = (u - demiGdAxe * cos(e)) / cos(coordGeod[1]) ;
    else
      coordGeod[2] = (coordCart[2] - demiPtAxe * sin(e)) / sin(coordGeod[1]) ;

    geod->set_coordinates(coordGeod[0],coordGeod[1], coordGeod[2]);
  }
  //return 0 ;
}

operator=()

RectangularCoordinate & ossimplugins::RectangularCoordinate::operator=

(

const RectangularCoordinate &

rhs

)

Affectation operator.

Definition at line 37 of file RectangularCoordinate.cpp.

References ossimplugins::Coordinate::_x, ossimplugins::Coordinate::_y, and ossimplugins::Coordinate::_z.

{
  _x = rhs._x;
  _y = rhs._x;
  _z = rhs._x;

  return *this;
}

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The documentation for this class was generated from the following files:

• RectangularCoordinate.h
• RectangularCoordinate.cpp