#include <ossimUtmpt.h>

Public Member Functions
	ossimUtmpt (const ossimGpt &aPt)

	ossimUtmpt (const ossimEcefPoint &aPt)

	ossimUtmpt (long zone, char hemisphere, double easting, double northing, const ossimDatum *datum)

ossim_int32	zone () const
	Return the zone for this utm point. More...

char	hemisphere () const
	Return the hemisphere ( Northern or Southern). More...

double	easting () const
	return the easting value in meters. More...

double	northing () const
	return the northing value in meters. More...

const ossimDatum *	datum () const
	return the reference datum for this point. More...

void	convertFromGround (const ossimGpt &aPt)
	Initializes this point to utm coordinates for the ground point. More...

void	convertToGround (ossimGpt &aPt)
	Initializes the ground point from the utm coordinates of this point. More...

Private Attributes
long	theZone

char	theHemisphere

double	theEasting

double	theNorthing

const ossimDatum *	theDatum

Detailed Description

Definition at line 26 of file ossimUtmpt.h.

Constructor & Destructor Documentation

◆ ossimUtmpt() [1/3]

ossimUtmpt::ossimUtmpt ( const ossimGpt & aPt )

Definition at line 24 of file ossimUtmpt.cpp.

References convertFromGround().

 {
    convertFromGround(aPt);
 }

◆ ossimUtmpt() [2/3]

ossimUtmpt::ossimUtmpt ( const ossimEcefPoint & aPt )

Definition at line 29 of file ossimUtmpt.cpp.

References convertFromGround().

 {
    convertFromGround(ossimGpt(aPt));
 }

◆ ossimUtmpt() [3/3]

ossimUtmpt::ossimUtmpt	(	long	zone,
		char	hemisphere,
		double	easting,
		double	northing,
		const ossimDatum *	datum
	)

Definition at line 34 of file ossimUtmpt.cpp.

    :
       theZone       (zone),
       theHemisphere (hemisphere),
       theEasting    (easting),
       theNorthing   (northing),
       theDatum      (datum)
 {}

Member Function Documentation

◆ convertFromGround()

void ossimUtmpt::convertFromGround ( const ossimGpt & aPt )

Initializes this point to utm coordinates for the ground point.

Parameters

aPt	Ground point to initialize from.

Definition at line 47 of file ossimUtmpt.cpp.

References ossimEllipsoid::a(), Convert_Geodetic_To_UTM(), ossimGpt::datum(), ossimDatum::ellipsoid(), ossimEllipsoid::flattening(), ossimGpt::latr(), ossimGpt::lonr(), Set_UTM_Parameters(), theDatum, theEasting, theHemisphere, theNorthing, and theZone.

Referenced by ossimUtmpt().

 {
    const ossimDatum *aDatum = aPt.datum();
 
    if(aDatum)
    {
       //call Geotrans init code
       Set_UTM_Parameters(aDatum->ellipsoid()->a(), aDatum->ellipsoid()->flattening(), 0);
       Convert_Geodetic_To_UTM(aPt.latr(),
                               aPt.lonr(),
                               &theZone,
                               &theHemisphere,
                               &theEasting,
                               &theNorthing);
       theDatum = aDatum;
    }
    else
    {
       //ERROR: Should never happen
    }
 }

◆ convertToGround()

void ossimUtmpt::convertToGround ( ossimGpt & aPt )

Initializes the ground point from the utm coordinates of this point.

Parameters

aPt	Ground point to initialize.

Definition at line 69 of file ossimUtmpt.cpp.

References ossimEllipsoid::a(), Convert_UTM_To_Geodetic(), ossimGpt::datum(), easting(), ossimDatum::ellipsoid(), ossimEllipsoid::flattening(), hemisphere(), ossimGpt::latr(), ossimGpt::lonr(), northing(), Set_UTM_Parameters(), theDatum, and zone().

 {
    Set_UTM_Parameters( theDatum->ellipsoid()->a(),
                        theDatum->ellipsoid()->flattening(),
                        0 );
    
    double latitude  = 0.0;
    double longitude = 0.0;
 
    Convert_UTM_To_Geodetic( zone(),
                             hemisphere(),
                             easting(),
                             northing(),
                             &latitude,
                             &longitude );
 
    aPt.latr(latitude);
    aPt.lonr(longitude);
    aPt.datum(theDatum);
 }