ossimGeoidNgs Class Reference

#include <ossimGeoidNgs.h>

Inheritance diagram for ossimGeoidNgs:

Public Member Functions
	ossimGeoidNgs ()
	ossimGeoidNgs (const ossimFilename &dir, ossimByteOrder byteOrder=OSSIM_LITTLE_ENDIAN)
virtual	~ossimGeoidNgs ()
virtual ossimString	getShortName () const
virtual bool	open (const ossimFilename &dir, ossimByteOrder byteOrder=OSSIM_LITTLE_ENDIAN)
virtual bool	addFile (const ossimFilename &file, ossimByteOrder byteOrder=OSSIM_LITTLE_ENDIAN)
virtual double	offsetFromEllipsoid (const ossimGpt &)
double	geoidToEllipsoidHeight (double lat, double lon, double geoidHeight) const
double	ellipsoidToGeoidHeight (double lat, double lon, double ellipsoidHeight) const
Public Member Functions inherited from ossimGeoid
	ossimGeoid ()
Public Member Functions inherited from ossimObject
	ossimObject ()
virtual	~ossimObject ()
virtual ossimObject *	dup () 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 bool	isEqualTo (const ossimObject &obj, ossimCompareType compareType=OSSIM_COMPARE_FULL) const
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 Member Functions inherited from ossimErrorStatusInterface
	ossimErrorStatusInterface ()
virtual	~ossimErrorStatusInterface ()
virtual ossimErrorCode	getErrorStatus () const
virtual ossimString	getErrorStatusString () const
virtual void	setErrorStatus (ossimErrorCode error_status) const
virtual void	setErrorStatus () const
virtual void	clearErrorStatus () const
bool	hasError () const
virtual std::ostream &	print (std::ostream &out) const
	Outputs theErrorStatus as an ossimErrorCode and an ossimString. More...

Protected Member Functions
void	fixLatLon (double &lat, double &lon) const
double	deltaHeight (double lat, double lon) const
Protected Member Functions inherited from ossimGeoid
virtual	~ossimGeoid ()
Protected Member Functions inherited from ossimReferenced
virtual	~ossimReferenced ()

Protected Attributes
std::vector< ossimGeoidNgsHeader >	theGridVector
ossimString	theShortName
Protected Attributes inherited from ossimErrorStatusInterface
ossimErrorCode	theErrorStatus

Detailed Description

Definition at line 17 of file ossimGeoidNgs.h.

Constructor & Destructor Documentation

ossimGeoidNgs() [1/2]

ossimGeoidNgs::ossimGeoidNgs

(

)

Definition at line 30 of file ossimGeoidNgs.cpp.

   :theShortName("")
{
}

ossimGeoidNgs() [2/2]

ossimGeoidNgs::ossimGeoidNgs	(	const ossimFilename &	dir,
		ossimByteOrder	byteOrder = OSSIM_LITTLE_ENDIAN
	)

Definition at line 35 of file ossimGeoidNgs.cpp.

References open().

{
   open(dir);
}

~ossimGeoidNgs()

ossimGeoidNgs::~ossimGeoidNgs ( )

virtual

Definition at line 169 of file ossimGeoidNgs.cpp.

{
}

Member Function Documentation

addFile()

bool ossimGeoidNgs::addFile ( const ossimFilename &  file, ossimByteOrder  byteOrder = OSSIM_LITTLE_ENDIAN  )

virtual

Definition at line 174 of file ossimGeoidNgs.cpp.

References ossim::byteOrder(), ossimFilename::exists(), ossimGeoidNgsHeader::initialize(), and theGridVector.

Referenced by open().

{
   bool result = false;
   if(file.exists())
   {
      ossim_uint32 idx = 0;
      for(idx = 0; idx < theGridVector.size();++idx)
      {
         if(file == theGridVector[idx].filename())
         {
            result = true;
            return result;
         }
      }
      ossimGeoidNgsHeader h;
      result = h.initialize(file, byteOrder);
      if(result)
      {
         theGridVector.push_back(h);
      }
   }

   if(traceDebug())
   {
      ossimNotify(ossimNotifyLevel_DEBUG) << "ossimGeoidNgs::addFile: Adding file = " << file << std::endl;
   }
   return result;
}

deltaHeight()

double ossimGeoidNgs::deltaHeight ( double  lat, double  lon  ) const

protected

Definition at line 257 of file ossimGeoidNgs.cpp.

References ossim::nan(), and theGridVector.

Referenced by ellipsoidToGeoidHeight(), geoidToEllipsoidHeight(), and offsetFromEllipsoid().

{
   ossim_uint32 idx = 0;
   for(idx = 0; idx < theGridVector.size();++idx)
   {
      if( theGridVector[idx].pointWithin(lat, lon) )
      {
         return theGridVector[idx].getHeightDelta(lat,
                                                  lon);
      }
   }
   return ossim::nan();
}

ellipsoidToGeoidHeight()

double ossimGeoidNgs::ellipsoidToGeoidHeight	(	double	lat,
		double	lon,
		double	ellipsoidHeight
	)		const

Returns

Ellipsoid to geoid height or ossim::nan() if grid does not contain the point.

Definition at line 231 of file ossimGeoidNgs.cpp.

References deltaHeight(), fixLatLon(), and ossim::isnan().

{

   fixLatLon(lat, lon);
   double delta = deltaHeight(lat, lon);
   if (!ossim::isnan(delta))
   {
      return (ellipsoidHeight - delta);
   }
   return delta; // nan
}

fixLatLon()

void ossimGeoidNgs::fixLatLon ( double &  lat, double &  lon  ) const

protected

Definition at line 245 of file ossimGeoidNgs.cpp.

Referenced by ellipsoidToGeoidHeight(), geoidToEllipsoidHeight(), and offsetFromEllipsoid().

{
   if(lat < 0)
   {
      lat += 180;
   }
   if(lon < 0)
   {
      lon += 360;
   }
}

geoidToEllipsoidHeight()

double ossimGeoidNgs::geoidToEllipsoidHeight	(	double	lat,
		double	lon,
		double	geoidHeight
	)		const

Returns

Geoid to ellipsoid height or ossim::nan() if grid does not contain the point.

Definition at line 217 of file ossimGeoidNgs.cpp.

References deltaHeight(), fixLatLon(), and ossim::isnan().

{

   fixLatLon(lat, lon);
   double delta = deltaHeight(lat, lon);
   if (!ossim::isnan(delta))
   {
      return (geoidHeight + delta);
   }
   return delta; // nan
}

getShortName()

ossimString ossimGeoidNgs::getShortName ( ) const

virtual

Reimplemented from ossimObject.

Definition at line 271 of file ossimGeoidNgs.cpp.

References theShortName.

{
   return theShortName;
}

offsetFromEllipsoid()

double ossimGeoidNgs::offsetFromEllipsoid ( const ossimGpt &  gpt )

virtual

Returns

The offset from the ellipsoid to the geoid or ossim::nan() if grid does not contain the point.

Implements ossimGeoid.

Definition at line 203 of file ossimGeoidNgs.cpp.

References ossimGpt::changeDatum(), deltaHeight(), fixLatLon(), ossimDatumFactory::instance(), ossimGpt::latd(), and ossimGpt::lond().

{
   ossimGpt savedGpt = gpt;
   if(ossimDatumFactory::instance()->wgs84())
   {
      savedGpt.changeDatum(ossimDatumFactory::instance()->wgs84());
   }
   double lat = savedGpt.latd();
   double lon = savedGpt.lond();
   fixLatLon(lat, lon);
   
   return deltaHeight(lat, lon); 
}

open()

bool ossimGeoidNgs::open ( const ossimFilename &  dir, ossimByteOrder  byteOrder = OSSIM_LITTLE_ENDIAN  )

virtual

Implements ossimGeoid.

Definition at line 42 of file ossimGeoidNgs.cpp.

References addFile(), ossim::byteOrder(), ossimFilename::dirCat(), ossimFilename::exists(), ossimFilename::isDir(), and theShortName.

Referenced by ossimGeoidNgs().

{
   if (!dir.isDir())
   {
      return false;
   }

   if(dir.isDir())
   {
      ossimGeoidNgsHeader h;

      if(dir.dirCat("g2003u01.bin").exists())
      {
         theShortName = "geoid2003";
         addFile(dir.dirCat("g2003u01.bin"), byteOrder);
      }
      if(dir.dirCat("g2003u02.bin").exists())
      {
         theShortName = "geoid2003";
         addFile(dir.dirCat("g2003u02.bin"), byteOrder);
      }
      if(dir.dirCat("g2003u03.bin").exists())
      {
         theShortName = "geoid2003";
         addFile(dir.dirCat("g2003u03.bin"), byteOrder);
      }
      if(dir.dirCat("g2003u04.bin").exists())
      {
         theShortName = "geoid2003";
         addFile(dir.dirCat("g2003u04.bin"), byteOrder);
      }
      if(dir.dirCat("g2003u05.bin").exists())
      {
         theShortName = "geoid2003";
         addFile(dir.dirCat("g2003u05.bin"), byteOrder);
      }
      if(dir.dirCat("g2003u06.bin").exists())
      {
         theShortName = "geoid2003";
         addFile(dir.dirCat("g2003u06.bin"), byteOrder);
      }

      if(dir.dirCat("g1999u01.bin").exists())
      {
         theShortName = "geoid1999";
         addFile(dir.dirCat("g1999u01.bin"), byteOrder);
      }
      if(dir.dirCat("g1999u02.bin").exists())
      {
         theShortName = "geoid1999";
         addFile(dir.dirCat("g1999u02.bin"), byteOrder);
      }
      if(dir.dirCat("g1999u03.bin").exists())
      {
         theShortName = "geoid1999";
         addFile(dir.dirCat("g1999u03.bin"), byteOrder);
      }
      if(dir.dirCat("g1999u04.bin").exists())
      {
         theShortName = "geoid1999";
         addFile(dir.dirCat("g1999u04.bin"), byteOrder);
      }
      if(dir.dirCat("g1999u05.bin").exists())
      {
         theShortName = "geoid1999";
         addFile(dir.dirCat("g1999u05.bin"), byteOrder);
      }
      if(dir.dirCat("g1999u06.bin").exists())
      {
         theShortName = "geoid1999";
         addFile(dir.dirCat("g1999u06.bin"), byteOrder);
      }
      if(dir.dirCat("g1999u07.bin").exists())
      {
         theShortName = "geoid1999";
         addFile(dir.dirCat("g1999u07.bin"), byteOrder);
      }
      if(dir.dirCat("g1999u08.bin").exists())
      {
         theShortName = "geoid1999";
         addFile(dir.dirCat("g1999u08.bin"), byteOrder);
      }
      if(dir.dirCat("g1999a01.bin").exists())
      {
         theShortName = "geoid1999";
         addFile(dir.dirCat("g1999a01.bin"), byteOrder);
      }
      if(dir.dirCat("g1999a02.bin").exists())
      {
         theShortName = "geoid1999";
         addFile(dir.dirCat("g1999a02.bin"), byteOrder);
      }
      if(dir.dirCat("g1999a03.bin").exists())
      {
         theShortName = "geoid1999";
         addFile(dir.dirCat("g1999a03.bin"), byteOrder);
      }
      if(dir.dirCat("g1999a04.bin").exists())
      {
         theShortName = "geoid1999";
         addFile(dir.dirCat("g1999a04.bin"), byteOrder);
      }
      if(dir.dirCat("g1999h01.bin"))
      {
         theShortName = "geoid1999";
         addFile(dir.dirCat("g1999h01.bin"), byteOrder);
      }
      if(dir.dirCat("g1999p01.bin").exists())
      {
         theShortName = "geoid1999";
         addFile(dir.dirCat("g1999p01.bin"), byteOrder);
      }
   }
   else
   {
      addFile(dir, byteOrder);
   }
   if (traceDebug())
   {
      ossimNotify(ossimNotifyLevel_DEBUG)
         << "Opened geoid grids from:  " << dir.c_str() << endl;
   }
   
   return true;
}

Member Data Documentation

theGridVector

std::vector<ossimGeoidNgsHeader> ossimGeoidNgs::theGridVector

protected

Definition at line 58 of file ossimGeoidNgs.h.

Referenced by addFile(), and deltaHeight().

theShortName

ossimString ossimGeoidNgs::theShortName

protected

Definition at line 59 of file ossimGeoidNgs.h.

Referenced by getShortName(), and open().

---

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

• ossimGeoidNgs.h
• ossimGeoidNgs.cpp