ossimDtedFactory Class Reference

CLASS: ossimDtedFactory. More...

#include <ossimDtedFactory.h>

Inheritance diagram for ossimDtedFactory:

Public Member Functions
	ossimDtedFactory ()
	ossimDtedFactory (const ossimFilename &dir)
virtual ossimElevSource *	getNewElevSource (const ossimGpt &gpt) const
	Pure virtual method. More...
virtual void	createIndex ()
Public Member Functions inherited from ossimElevSourceFactory
	ossimElevSourceFactory ()
	default constructor More...
virtual	~ossimElevSourceFactory ()
	virtual destructor More...
virtual ossimFilename	getDirectory () const
virtual void	setDirectory (const ossimFilename &directory)
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 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

Protected Member Functions
virtual	~ossimDtedFactory ()
Protected Member Functions inherited from ossimReferenced
virtual	~ossimReferenced ()

Additional Inherited Members
Protected Attributes inherited from ossimElevSourceFactory
ossimFilename	theDirectory

Detailed Description

CLASS: ossimDtedFactory.

Definition at line 22 of file ossimDtedFactory.h.

Constructor & Destructor Documentation

ossimDtedFactory() [1/2]

ossimDtedFactory::ossimDtedFactory

(

)

Definition at line 32 of file ossimDtedFactory.cpp.

   : ossimElevSourceFactory()
{}

ossimDtedFactory() [2/2]

ossimDtedFactory::ossimDtedFactory

(

const ossimFilename &

dir

)

Definition at line 36 of file ossimDtedFactory.cpp.

References ossimElevSourceFactory::theDirectory.

   : ossimElevSourceFactory()
{
   theDirectory = dir;
}

~ossimDtedFactory()

ossimDtedFactory::~ossimDtedFactory ( )

protectedvirtual

Definition at line 42 of file ossimDtedFactory.cpp.

{}

Member Function Documentation

createIndex()

void ossimDtedFactory::createIndex ( )

virtual

Definition at line 185 of file ossimDtedFactory.cpp.

{
}

getNewElevSource()

ossimElevSource * ossimDtedFactory::getNewElevSource ( const ossimGpt &  gpt ) const

virtual

Pure virtual method.

return an elevation source pointer that has elevation coverage for the ground point passed in. Note the caller of this method is responsible for managing the memory allocated.

Implements ossimElevSourceFactory.

Definition at line 45 of file ossimDtedFactory.cpp.

{
   if (traceDebug())
   {
      ossimNotify(ossimNotifyLevel_DEBUG)
         << "DEBUG ossimDtedFactory::getNewElevSource: Entered..."
         << std::endl;
   }
   
   ossimRefPtr<ossimElevSource> dted_ptr;
   
   if (theDirectory == ossimFilename::NIL)
   {
      ossimNotify(ossimNotifyLevel_FATAL)
         << "FATAL ossimDtedFactory::getNewElevSource: "
         << "DTED directory has not been set!"
         << "\nReturning null elevation source..."
         << std::endl;
      return dted_ptr.release();
   }
   
   // Build up a dted file name.
   ossimFilename dted_file_base;
   
   int ilon = static_cast<int>(floor(gpt.lond()));
   
   if (ilon < 0)
   {
      dted_file_base = "w";
   }
   else
   {
      dted_file_base = "e";
   }
   
   ilon = abs(ilon);
   std::ostringstream  s1;
   s1 << std::setfill('0') << std::setw(3)<< ilon;
   
   dted_file_base += s1.str().c_str();//ossimString::toString(ilon);
   dted_file_base += "/";
   
   int ilat =  static_cast<int>(floor(gpt.latd()));
   if (ilat < 0)
   {
      dted_file_base += "s";
   }
   else
   {
      dted_file_base += "n";
   }

   ilat = abs(ilat);
   std::ostringstream  s2;

   s2<< std::setfill('0') << std::setw(2)<< ilat;
   
   dted_file_base += s2.str().c_str();

   // Look for a dted file with a level 2 extension first.
   ossimFilename dted_name = theDirectory.dirCat(dted_file_base);
   dted_name += ".dt2";

   if (traceDebug())
   {
      ossimNotify(ossimNotifyLevel_DEBUG)
         << "DEBUG ossimDtedFactory::getNewElevSource:"
         << "\nSearching for file:  " << dted_name
         << std::endl;
   }
   
   if (dted_name.exists())
   {
      dted_ptr = new ossimDtedHandler(dted_name);
      if ( (!(dted_ptr->getErrorStatus())) &&
           dted_ptr->pointHasCoverage(gpt) )
      {
         return dted_ptr.release();
      }
      else
      {
         dted_ptr = 0;
      }
   }

   // Look for a dted file with a level 1 extension next.
   dted_name = theDirectory.dirCat(dted_file_base);
   dted_name += ".dt1";

   if (traceDebug())
   {
      ossimNotify(ossimNotifyLevel_DEBUG)
         << "DEBUG ossimDtedFactory::getNewElevSource:"
         << "\nSearching for file:  " << dted_name
         << std::endl;
   }
   
   if (dted_name.exists() )
   {
      dted_ptr = new ossimDtedHandler(dted_name);
      if ( (!(dted_ptr->getErrorStatus())) &&
           dted_ptr->pointHasCoverage(gpt) )
      {
         return dted_ptr.release();
      }
      else
      {
         dted_ptr = 0;
      }
   }

   // Look for a dted file with a level 0 extension next.
   dted_name = theDirectory.dirCat(dted_file_base);
   dted_name += ".dt0";

   if (traceDebug())
   {
      ossimNotify(ossimNotifyLevel_DEBUG)
         << "DEBUG ossimDtedFactory::getNewElevSource:"
         << "\nSearching for file:  " << dted_name
         << std::endl;
   }
   
   if (dted_name.exists() )
   {
      dted_ptr = new ossimDtedHandler(dted_name);
      if ( (!(dted_ptr->getErrorStatus())) &&
           dted_ptr->pointHasCoverage(gpt) )
      {
         return dted_ptr.release();
      }
      else
      {
         dted_ptr = 0;
      }
   }

   return dted_ptr.release();
}

---

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

• ossimDtedFactory.h
• ossimDtedFactory.cpp