#include <ossimNadconNasDatum.h>

Inheritance diagram for ossimNadconNasDatum:

Public Member Functions
	ossimNadconNasDatum (const ossimFilename &nadconDirectory)

virtual ossimGpt	shift (const ossimGpt &aPt) const

Public Member Functions inherited from ossimNadconGridDatum
	ossimNadconGridDatum (const ossimFilename &datumDirectory, const ossimString &code, const ossimString &name, const ossimEllipsoid *anEllipsoid, double sigmaX, double sigmaY, double sigmaZ, double westLongitude, double eastLongitude, double southLatitude, double northLatitude, double param1, double param2, double param3)

Public Member Functions inherited from ossimThreeParamDatum
	ossimThreeParamDatum (const ossimString &code, const ossimString &name, const ossimEllipsoid *anEllipsoid, ossim_float64 sigmaX, ossim_float64 sigmaY, ossim_float64 sigmaZ, ossim_float64 westLongitude, ossim_float64 eastLongitude, ossim_float64 southLatitude, ossim_float64 northLatitude, ossim_float64 param1, ossim_float64 param2, ossim_float64 param3)

virtual	~ossimThreeParamDatum ()

virtual ossimGpt	shiftToWgs84 (const ossimGpt &aPt) const

virtual ossimGpt	shiftFromWgs84 (const ossimGpt &aPt) const

virtual ossim_float64	param1 () const

virtual ossim_float64	param2 () const

virtual ossim_float64	param3 () const

virtual ossim_float64	param4 () const

virtual ossim_float64	param5 () const

virtual ossim_float64	param6 () const

virtual ossim_float64	param7 () const

virtual bool	isEqualTo (const ossimObject &obj, ossimCompareType compareType=OSSIM_COMPARE_FULL) const

Public Member Functions inherited from ossimDatum
	ossimDatum (const ossimString &alpha_code, const ossimString &name, const ossimEllipsoid *anEllipsoid, ossim_float64 sigmaX, ossim_float64 sigmaY, ossim_float64 sigmaZ, ossim_float64 westLongitude, ossim_float64 eastLongitude, ossim_float64 southLatitude, ossim_float64 northLatitude)

virtual bool	isTheSameAs (const ossimDatum *aDatum) const

virtual const ossimString &	code () const

virtual const ossimString &	name () const

virtual ossim_uint32	epsgCode () const

virtual const ossimEllipsoid *	ellipsoid () const

virtual ossim_float64	sigmaX () const

virtual ossim_float64	sigmaY () const

virtual ossim_float64	sigmaZ () const

virtual ossim_float64	westLongitude () const

virtual ossim_float64	eastLongitude () const

virtual ossim_float64	southLatitude () const

virtual ossim_float64	northLatitude () const

virtual bool	isInside (ossim_float64 latitude, ossim_float64 longitude) const

bool	operator== (const ossimDatum &rhs) const

bool	operator!= (const ossimDatum &rhs) const

Public Member Functions inherited from ossimObject
	ossimObject ()

virtual	~ossimObject ()

virtual ossimObject *	dup () const

virtual ossimString	getShortName () const

virtual ossimString	getLongName () const

virtual ossimString	getDescription () const

virtual ossimString	getClassName () const

virtual RTTItypeid	getType () const

virtual bool	canCastTo (ossimObject *obj) const

virtual bool	canCastTo (const RTTItypeid &id) const

virtual bool	canCastTo (const ossimString &parentClassName) const

virtual bool	saveState (ossimKeywordlist &kwl, const char *prefix=0) const

virtual bool	loadState (const ossimKeywordlist &kwl, const char *prefix=0)

virtual std::ostream &	print (std::ostream &out) const
	Generic print method. More...

virtual void	accept (ossimVisitor &visitor)

Public Member Functions inherited from ossimReferenced
	ossimReferenced ()

	ossimReferenced (const ossimReferenced &)

ossimReferenced &	operator= (const ossimReferenced &)

void	ref () const
	increment the reference count by one, indicating that this object has another pointer which is referencing it. More...

void	unref () const
	decrement the reference count by one, indicating that a pointer to this object is referencing it. More...

void	unref_nodelete () const
	decrement the reference count by one, indicating that a pointer to this object is referencing it. More...

int	referenceCount () const

Public Attributes
	TYPE_DATA

Additional Inherited Members
Protected Member Functions inherited from ossimNadconGridDatum
void	checkGrid (const ossimDpt &latLon) const

Protected Member Functions inherited from ossimDatum
virtual	~ossimDatum ()
	Only friend ossimDatumFactory is permitted to delete. More...

virtual void	molodenskyShift (double a, double da, double f, double df, double dx, double dy, double dz, double Lat_in, double Lon_in, double Hgt_in, double &Lat_out, double &Lon_out, double &Hgt_out) const

bool	withinMolodenskyRange (const ossimGpt &pt) const

Protected Member Functions inherited from ossimReferenced
virtual	~ossimReferenced ()

Protected Attributes inherited from ossimNadconGridDatum
ossimDrect	theConusRect

ossimDrect	theHawaiiRect

ossimDrect	theAlaskaRect

ossimDrect	theStGeorgeRect

ossimDrect	theLatStLaurenceRect

ossimDrect	theStPaulRect

ossimDrect	thePrviRect

ossimNadconGridFile	theLatGrid

ossimNadconGridFile	theLonGrid

ossimDrect	theCurrentGridRect

ossimFilename	theDatumDirectory

	TYPE_DATA

Protected Attributes inherited from ossimThreeParamDatum
ossim_float64	theParam1

ossim_float64	theParam2

ossim_float64	theParam3

	TYPE_DATA

Protected Attributes inherited from ossimDatum
ossimString	theCode

ossim_uint32	theEpsgCode

ossimString	theName

const ossimEllipsoid *	theEllipsoid

ossim_float64	theSigmaX

ossim_float64	theSigmaY

ossim_float64	theSigmaZ

ossim_float64	theWestLongitude

ossim_float64	theEastLongitude

ossim_float64	theSouthLatitude

ossim_float64	theNorthLatitude

	TYPE_DATA

Detailed Description

Definition at line 8 of file ossimNadconNasDatum.h.

Constructor & Destructor Documentation

◆ ossimNadconNasDatum()

ossimNadconNasDatum::ossimNadconNasDatum ( const ossimFilename & nadconDirectory )

Definition at line 4 of file ossimNadconNasDatum.cpp.

    :
       ossimNadconGridDatum(nadconDirectory,
                            ossimString("NAS"),
                            ossimString("NORTH AMERICAN 1927 NADCON, CONUS GRID"),
                            ossimEllipsoidFactory::instance()->create(ossimString("CC")),
                            5.000000000000000, 5.000000000000000, 6.000000000000000, 
                            -135, -60.0, 15.0, 60.0, -8.0, 160.0, 176.0)
 {
 }

Member Function Documentation

◆ shift()

ossimGpt ossimNadconNasDatum::shift ( const ossimGpt & aPt ) const

virtual

Will shift a ground point to this datum. If they are the same datum then nothing happens.

Reimplemented from ossimThreeParamDatum.

Definition at line 15 of file ossimNadconNasDatum.cpp.

References ossimString::begin(), ossimNadconGridDatum::checkGrid(), ossimDatum::code(), ossimGpt::datum(), ossimNadconGridFile::getFileOkFlag(), ossimNadconGridFile::getShiftAtLatLon(), ossimGpt::height(), ossimDpt::lat, ossimGpt::latd(), ossimDrect::ll(), ossimDpt::lon, ossimGpt::lond(), ossimThreeParamDatum::shift(), ossimNadconGridDatum::theCurrentGridRect, ossimNadconGridDatum::theLatGrid, ossimNadconGridDatum::theLonGrid, ossimDrect::ul(), and ossimDrect::ur().

 {
   const ossimDatum* datum = aPt.datum();
   ossimString code = datum->code();
   ossimString subCode(code.begin(),
               code.begin() + 3);
   if(subCode == "NAS")
     {
       return aPt;
     }
   else
   {
      if(subCode == "NAR")
      {
        checkGrid(aPt);
        if(!theLatGrid.getFileOkFlag()||
       !theLonGrid.getFileOkFlag())
      {
        return ossimThreeParamDatum::shift(aPt);
      }
         ossimDpt pt;
         ossimDpt tempPt;
         ossimDpt deltaPt;
         double shiftLat;
         double shiftLon;
     double minLat = theCurrentGridRect.ll().lat;
     double maxLat = theCurrentGridRect.ul().lat;
     double minLon = theCurrentGridRect.ul().lon;
     double maxLon = theCurrentGridRect.ur().lon;
         int maxIter = 20;
         double epsilon = 1.0e-9;
         int c = 0;
         
         pt.lat = aPt.latd();
         pt.lon = aPt.lond();
         ossimDpt pt2;
         tempPt = pt;
         ossimDpt delta2;
         while(c < maxIter)
         {
       if(tempPt.lat < minLat) tempPt.lat = minLat;
       if(tempPt.lat > maxLat) tempPt.lat = maxLat;
       if(tempPt.lon < minLon) tempPt.lon = minLon;
       if(tempPt.lon > maxLon) tempPt.lon = maxLon;
 
            shiftLat = theLatGrid.getShiftAtLatLon(tempPt.lat, tempPt.lon);
            shiftLon = theLonGrid.getShiftAtLatLon(tempPt.lat, tempPt.lon);
 
        
        pt2.lat = tempPt.lat + shiftLat/3600.0;
        pt2.lon = tempPt.lon - shiftLon/3600.0;
            
            delta2  = pt2-pt;
            if(c == 0)
            {
               if(fabs(deltaPt.lon) > epsilon)
               {
                  tempPt.lon = pt.lon - shiftLon/3600.0;
               }
               if(fabs(deltaPt.lat) > epsilon)
               {
                  tempPt.lat = pt.lat + shiftLat/3600.0;
               }
            }
            else
            {
               if(fabs(delta2.lon) > epsilon)
               {
                  tempPt.lon = tempPt.lon - delta2.lon;
               }
               if(fabs(delta2.lat) > epsilon)
               {
                  tempPt.lat =tempPt.lat - delta2.lat;
               }
            }
            if((fabs(delta2.lat) < epsilon)&&
               (fabs(delta2.lon) < epsilon))
            {
               break;
            }
            else
            {
               ++c;
            }
         }
         return ossimGpt(tempPt.lat,
                         tempPt.lon,
                         aPt.height(),
                         this);
      }
   }
   return ossimThreeParamDatum::shift(aPt);
 }

Member Data Documentation

◆ TYPE_DATA

ossimNadconNasDatum::TYPE_DATA

Definition at line 17 of file ossimNadconNasDatum.h.

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

Public Member Functions

Public Attributes