ossimImageGeometryFactory Class Reference

#include <ossimImageGeometryFactory.h>

Inheritance diagram for ossimImageGeometryFactory:

Public Member Functions
virtual ossimImageGeometry *	createGeometry (const ossimString &typeName) const
virtual ossimImageGeometry *	createGeometry (const ossimKeywordlist &kwl, const char *prefix=0) const
virtual ossimImageGeometry *	createGeometry (const ossimFilename &filename, ossim_uint32 entryIdx) const
virtual bool	extendGeometry (ossimImageHandler *handler) const
virtual void	getTypeNameList (std::vector< ossimString > &typeList) const
virtual ossim2dTo2dTransform *	createTransform (ossimImageHandler *handler) const
	This is a utility method used by crateGeoemtry that takes an image handler. More...
virtual ossimProjection *	createProjection (ossimImageHandler *handler) const
	Utility method to create a projection from an image handler. More...
Public Member Functions inherited from ossimImageGeometryFactoryBase
virtual ossimObject *	createObject (const ossimString &typeName) const
	Creates an object given a type name. More...
virtual ossimObject *	createObject (const ossimKeywordlist &kwl, const char *prefix=0) const
	Creates and object given a keyword list. More...
Public Member Functions inherited from ossimBaseObjectFactory
	ossimBaseObjectFactory ()
virtual	~ossimBaseObjectFactory ()
Public Member Functions inherited from ossimObjectFactory
virtual	~ossimObjectFactory ()
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

Static Public Member Functions
static ossimImageGeometryFactory *	instance ()
Static Public Member Functions inherited from ossimBaseObjectFactory
static ossimBaseObjectFactory *	instance ()

Protected Member Functions
	ossimImageGeometryFactory ()
virtual ossim2dTo2dTransform *	createTransformFromNitf (ossimNitfTileSource *handler) const
Protected Member Functions inherited from ossimReferenced
virtual	~ossimReferenced ()

Static Protected Attributes
static ossimImageGeometryFactory *	m_instance = 0

Detailed Description

Definition at line 20 of file ossimImageGeometryFactory.h.

Constructor & Destructor Documentation

ossimImageGeometryFactory()

ossimImageGeometryFactory::ossimImageGeometryFactory ( )

protected

Definition at line 26 of file ossimImageGeometryFactory.cpp.

References m_instance.

Referenced by instance().

{
   m_instance = this;
}

Member Function Documentation

createGeometry() [1/3]

ossimImageGeometry * ossimImageGeometryFactory::createGeometry ( const ossimString &  typeName ) const

virtual

Implements ossimImageGeometryFactoryBase.

Definition at line 41 of file ossimImageGeometryFactory.cpp.

Referenced by createGeometry().

{
   if(typeName == "ossimImageGeometry")
   {
      return new ossimImageGeometry();
   }
   
   return 0;
}

createGeometry() [2/3]

ossimImageGeometry * ossimImageGeometryFactory::createGeometry ( const ossimKeywordlist &  kwl, const char *  prefix = 0  ) const

virtual

Implements ossimImageGeometryFactoryBase.

Definition at line 52 of file ossimImageGeometryFactory.cpp.

References createGeometry(), ossimString::empty(), ossimKeywordlist::find(), ossimImageGeometry::loadState(), ossimRefPtr< T >::release(), ossimKeywordNames::TYPE_KW, and ossimRefPtr< T >::valid().

{
   ossimRefPtr<ossimImageGeometry> result = 0;
   ossimString type = kwl.find(prefix, ossimKeywordNames::TYPE_KW);
   if(!type.empty())
   {
      result = createGeometry(type);
      if(result.valid()&&!result->loadState(kwl, prefix))
      {
         result = 0;
      }
   }
   
   return result.release();
}

createGeometry() [3/3]

ossimImageGeometry * ossimImageGeometryFactory::createGeometry ( const ossimFilename &  filename, ossim_uint32  entryIdx  ) const

virtual

Implements ossimImageGeometryFactoryBase.

Definition at line 69 of file ossimImageGeometryFactory.cpp.

{
   // currently don't support this option just yet by this factory
   return 0;
}

createProjection()

ossimProjection * ossimImageGeometryFactory::createProjection ( ossimImageHandler *  handler ) const

virtual

Utility method to create a projection from an image handler.

Parameters

handler

The image handler to create projection from.

Returns

Pointer to an ossimProjection on success, null on error.

Definition at line 130 of file ossimImageGeometryFactory.cpp.

References ossimProjectionFactoryRegistry::createProjection(), ossimProjectionFactoryRegistry::instance(), and ossimRefPtr< T >::release().

Referenced by extendGeometry().

{
   ossimRefPtr<ossimProjection> result =
      ossimProjectionFactoryRegistry::instance()->createProjection(handler);

   return result.release();
}

createTransform()

ossim2dTo2dTransform * ossimImageGeometryFactory::createTransform ( ossimImageHandler *  handler ) const

virtual

This is a utility method used by crateGeoemtry that takes an image handler.

Definition at line 113 of file ossimImageGeometryFactory.cpp.

References createTransformFromNitf(), and ossimRefPtr< T >::release().

Referenced by extendGeometry().

{
   // Currently nothing to do...
   
   ossimRefPtr<ossim2dTo2dTransform> result = 0;
   
   ossimNitfTileSource* nitf = dynamic_cast<ossimNitfTileSource*> (handler);
   
   if(nitf)
   {
      result = createTransformFromNitf(nitf);
   }
   
   return result.release();
}

createTransformFromNitf()

ossim2dTo2dTransform * ossimImageGeometryFactory::createTransformFromNitf ( ossimNitfTileSource *  handler ) const

protectedvirtual

Definition at line 139 of file ossimImageGeometryFactory.cpp.

References ossimRefPtr< T >::get(), ossimNitfTileSource::getCurrentImageHeader(), ossimNitfImageHeader::getIMode(), ossimNitfImageHeader::getNumberOfPixelsPerBlockHoriz(), ossimNitfImageHeader::getNumberOfPixelsPerBlockVert(), ossimNitfStdidcTag::getStartColumn(), ossimNitfStdidcTag::getStartRow(), ossimNitfImageHeader::getTagData(), ossimNitfIchipbTag::newTransform(), PTR_CAST, ossimString::toInt32(), ossimRefPtr< T >::valid(), ossimDpt::x, and ossimDpt::y.

Referenced by createTransform().

{
   ossim2dTo2dTransform* result = 0;
   
   ossimRefPtr<ossimNitfImageHeader> hdr = nitf->getCurrentImageHeader();
   if (!hdr)
   {
      return result;
   }
   
   //---
   // Test for the ichipb tag and set the sub image if needed.
   // 
   // NOTE # 1:
   // 
   // There are nitf writers that set the ichipb offsets and only have
   // IGEOLO field present.  For these it has been determined
   // (but still in question) that we should not apply the sub image offset.
   //
   // See trac # 1578
   // http://trac.osgeo.org/ossim/ticket/1578
   //
   // NOTE # 2:
   //
   // Let the ICHIPB have precedence over the STDIDC tag as we could have a
   // chip of a segment.
   //---
   ossimRefPtr<ossimNitfRegisteredTag> tag =
   hdr->getTagData(ossimString("ICHIPB"));
   if (tag.valid())
   {
      ossimNitfIchipbTag* ichipb = PTR_CAST(ossimNitfIchipbTag, tag.get());
      if (ichipb)
      {
//         const ossimRefPtr<ossimNitfRegisteredTag> blocka =
//         hdr->getTagData(ossimString("BLOCKA"));
//         const ossimRefPtr<ossimNitfRegisteredTag> rpc00a =
//         hdr->getTagData(ossimString("RPC00A"));              
//         const ossimRefPtr<ossimNitfRegisteredTag> rpc00b =
//         hdr->getTagData(ossimString("RPC00B"));
         
         //---
         // If any of these tags are present we will use the sub image from
         // the ichipb tag.
         //---
//         if ( blocka.get() || rpc00a.get() || rpc00b.get() )
         
         // ************************* THERE ARE PROBLEMS NOT SETTING THIS AT SITE.  GO AHEAD AND ALWAYS INIT THE SHIFT
         {
            result = ichipb->newTransform();
         }
      }
   }
   
   if ( !result)
   {
      //---
      // Look for the STDIDC tag for a sub image (segment) offset.
      //
      // See: STDI-002 Table 7.3 for documentation.
      //---
      tag = hdr->getTagData(ossimString("STDIDC"));
      if (tag.valid() && (hdr->getIMode() == "B") )
      {
         ossimDpt shift;
         ossimNitfStdidcTag* stdidc = PTR_CAST(ossimNitfStdidcTag, tag.get());
         if (stdidc)
         {
            ossim_int32 startCol = stdidc->getStartColumn().toInt32();
            ossim_int32 startRow = stdidc->getStartRow().toInt32();
            if ( (startCol > 0) && (startRow > 0) )
            {
               
               // field are one based; hence, the - 1.
               shift.x = (startCol-1) * hdr->getNumberOfPixelsPerBlockHoriz();
               shift.y = (startRow-1) * hdr->getNumberOfPixelsPerBlockVert();
            }
            if(shift.x > 0 ||
               shift.y > 0)
            {
               result = new ossim2dTo2dShiftTransform(shift);
            }
         }
      }
   }
   
   return result;
}

extendGeometry()

bool ossimImageGeometryFactory::extendGeometry ( ossimImageHandler *  handler ) const

virtual

Implements ossimImageGeometryFactoryBase.

Definition at line 76 of file ossimImageGeometryFactory.cpp.

References createProjection(), createTransform(), ossimImageHandler::getImageGeometry(), ossimImageGeometry::getProjection(), ossimImageGeometry::getTransform(), ossimImageGeometry::hasProjection(), ossimImageGeometry::hasTransform(), ossimImageGeometry::setProjection(), ossimImageGeometry::setTransform(), and ossimRefPtr< T >::valid().

{
   bool result = false;
   if (handler)
   {
      bool add2D = true;
      ossimRefPtr<ossimImageGeometry> geom = handler->getImageGeometry();
      if(geom.valid())
      {
         if(!geom->getProjection())
         {
            geom->setProjection(createProjection(handler));
            result = geom->hasProjection();
         }
         if(geom->getProjection())
         {
            if( !(dynamic_cast<ossimSensorModel*>(geom->getProjection())))
            {
               add2D = false;
            }
         }
         if(!geom->getTransform()&&add2D)
         {
            geom->setTransform(createTransform(handler));
            result |= geom->hasTransform();
        }
      }
   }
   return result;
}

getTypeNameList()

void ossimImageGeometryFactory::getTypeNameList ( std::vector< ossimString > &  typeList ) const

virtual

This should return the type name of all objects in all factories. This is the name used to construct the objects dynamially and this name must be unique.

Reimplemented from ossimBaseObjectFactory.

Definition at line 107 of file ossimImageGeometryFactory.cpp.

{
   typeList.push_back("ossimImageGeometry");
}

instance()

ossimImageGeometryFactory * ossimImageGeometryFactory::instance ( )

static

Definition at line 31 of file ossimImageGeometryFactory.cpp.

References m_instance, and ossimImageGeometryFactory().

Referenced by ossimImageGeometryRegistry::instance().

{
   if(!m_instance)
   {
      m_instance = new ossimImageGeometryFactory();
   }
   
   return m_instance;
}

Member Data Documentation

m_instance

ossimImageGeometryFactory * ossimImageGeometryFactory::m_instance = 0

staticprotected

Definition at line 50 of file ossimImageGeometryFactory.h.

Referenced by instance(), and ossimImageGeometryFactory().

---

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

• ossimImageGeometryFactory.h
• ossimImageGeometryFactory.cpp