ossimAtbPointSource Class Reference

#include <ossimAtbPointSource.h>

Inheritance diagram for ossimAtbPointSource:

Public Member Functions
	ossimAtbPointSource ()
	ossimAtbPointSource (ossimGridRemapSource *remap_source, const ossimDpt &view_point)
void	setRemapSource (ossimGridRemapSource *image_source)
ossimGridRemapSource *	getRemapSource ()
void	setViewPoint (const ossimDpt &view_point)
const ossimDpt &	getViewPoint () const
void	getSourceValue (void *value)
void	setKernelSize (int side_size)
void	setGridRemapEngine (ossimGridRemapEngine *engine)
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	~ossimAtbPointSource ()
Protected Member Functions inherited from ossimReferenced
virtual	~ossimReferenced ()

Private Attributes
ossimRefPtr< ossimGridRemapSource >	theRemapSource
ossimDpt	theViewPoint
ossimRefPtr< ossimGridRemapEngine >	theGridRemapEngine
int	theKernelSize
bool	theViewPointIsValid

Detailed Description

---

CLASS: ossimAtbPointSource

Definition at line 34 of file ossimAtbPointSource.h.

Constructor & Destructor Documentation

ossimAtbPointSource() [1/2]

ossimAtbPointSource::ossimAtbPointSource

(

)

Definition at line 37 of file ossimAtbPointSource.cpp.

   : theRemapSource (0),
     theGridRemapEngine (0),
     theKernelSize (DEFAULT_KERNEL_SIZE),
     theViewPointIsValid (false)
{
   static const char MODULE[] = "ossimAtbPointSource Default Constructor";
   if (traceExec())  CLOG << "entering..." << endl;

   if (traceExec())  CLOG << "returning..." << endl;
}

ossimAtbPointSource() [2/2]

ossimAtbPointSource::ossimAtbPointSource	(	ossimGridRemapSource *	remap_source,
		const ossimDpt &	view_point
	)

Definition at line 54 of file ossimAtbPointSource.cpp.

   : theRemapSource (source),
     theGridRemapEngine (source->getRemapEngine()),
     theKernelSize (DEFAULT_KERNEL_SIZE),
     theViewPointIsValid (false)
{
   static const char MODULE[] = "ossimAtbPointSource Default Constructor";
   if (traceExec())  CLOG << "entering..." << endl;

   setViewPoint(view_point);
   
   if (traceExec())  CLOG << "returning..." << endl;
}

~ossimAtbPointSource()

ossimAtbPointSource::~ossimAtbPointSource ( )

protectedvirtual

Definition at line 74 of file ossimAtbPointSource.cpp.

{
}

Member Function Documentation

getRemapSource()

ossimGridRemapSource* ossimAtbPointSource::getRemapSource ( )

inline

Returns the reference to the remapper feeding this source.

Definition at line 50 of file ossimAtbPointSource.h.

References ossimRefPtr< T >::get(), and theRemapSource.

{ return theRemapSource.get(); }

getSourceValue()

void ossimAtbPointSource::getSourceValue

(

void *

value

)

Returns the computed value vector corresponding to the region about the view point. The ATB Remap engine performs the actual computation, since the definition of "value" is algorithm dependent (the value may be in a different color space).

Definition at line 132 of file ossimAtbPointSource.cpp.

{
   static const char MODULE[] = "ossimAtbPointSource::getSourceValue()";
   if (traceExec())  CLOG << "entering..." << endl;

   //***
   // Verify that members are initialized before processing:
   //***
   if ((!theViewPointIsValid) || (!theRemapSource) || (!theGridRemapEngine))
   {
      CLOG <<"ERROR: This object was not properly initialized before attempting"
           <<" to compute target value! Returning usassigned vector..."<<endl;
      return;
   }

   //***
   // Extract the data kernel from the image chain:
   //***
   ossimIpt kernel_2d_size (theKernelSize, theKernelSize);
   ossimIpt kernel_ul (theViewPoint - kernel_2d_size/2.0);
   ossimIpt kernel_lr (kernel_ul.x + kernel_2d_size.x - 1,
                       kernel_ul.y + kernel_2d_size.y - 1);
   ossimIrect kernel_rect (kernel_ul, kernel_lr);
   ossimRefPtr<ossimImageData> kernel_data =
      theRemapSource->getTile(kernel_rect);

   //***
   // Fetch the value of the data kernel. Note: this is not necessarily in
   // the same color space as the pixels. It depends on which engine is being
   // utilized:
   //***
   theGridRemapEngine->computeSourceValue(kernel_data, value_vector);

//   delete kernel_data;
   
   if (traceExec())  CLOG << "returning..." << endl;
   return;
}

getViewPoint()

const ossimDpt& ossimAtbPointSource::getViewPoint ( ) const

inline

Returns the view point corresponding to this point source.

Definition at line 60 of file ossimAtbPointSource.h.

References theViewPoint.

{ return theViewPoint; }

setGridRemapEngine()

void ossimAtbPointSource::setGridRemapEngine ( ossimGridRemapEngine *  engine )

inline

Sets the ATB remap engine reference owned by the controller. This engine is the only object that understands how to compute remap parameters from pixel data. This permits easily modifying the ATB algorithm without the support classes such as this one.

Definition at line 82 of file ossimAtbPointSource.h.

References theGridRemapEngine.

      { theGridRemapEngine = engine; }

setKernelSize()

void ossimAtbPointSource::setKernelSize

(

int

side_size

)

Method to set the kernel size used in computing statistics. The kernel will be resized to NxN.

Definition at line 179 of file ossimAtbPointSource.cpp.

{
   static const char MODULE[] = "ossimAtbPointSource::setKernelSize()";
   if (traceExec())  CLOG << "entering..." << endl;

   theKernelSize = side_size;
   
   if (traceExec())  CLOG << "returning..." << endl;
   return;
}

setRemapSource()

void ossimAtbPointSource::setRemapSource

(

ossimGridRemapSource *

image_source

)

Sets the pointer of the source of pixels used to compute the stats.

Definition at line 84 of file ossimAtbPointSource.cpp.

{
   static const char MODULE[] = "ossimAtbPointSource::setRemapSource()";
   if (traceExec())  CLOG << "entering..." << endl;

   theRemapSource = source;

   //***
   // Also fetch the remap engine which should be a derived ossimAtbRemapEngine:
   //***
   theGridRemapEngine = theRemapSource->getRemapEngine();
   
   if (traceExec())  CLOG << "returning..." << endl;
   return;
}

setViewPoint()

void ossimAtbPointSource::setViewPoint

(

const ossimDpt &

view_point

)

Sets the view coordinates corresponding to this point.

Definition at line 107 of file ossimAtbPointSource.cpp.

{
   static const char MODULE[] = "ossimAtbPointSource::setViewPoint()";
   if (traceExec())  CLOG << "entering..." << endl;

   theViewPoint = view_point;
   
   if ((theRemapSource.valid()) &&
       (theRemapSource->getBoundingRect().pointWithin(theViewPoint)))
      theViewPointIsValid = true;
   else
      theViewPointIsValid = false;
         
   if (traceExec())  CLOG << "returning..." << endl;
   return;
}

Member Data Documentation

theGridRemapEngine

ossimRefPtr<ossimGridRemapEngine> ossimAtbPointSource::theGridRemapEngine

private

Definition at line 91 of file ossimAtbPointSource.h.

Referenced by setGridRemapEngine().

theKernelSize

int ossimAtbPointSource::theKernelSize

private

Definition at line 92 of file ossimAtbPointSource.h.

theRemapSource

ossimRefPtr<ossimGridRemapSource> ossimAtbPointSource::theRemapSource

private

Definition at line 89 of file ossimAtbPointSource.h.

Referenced by getRemapSource().

theViewPoint

ossimDpt ossimAtbPointSource::theViewPoint

private

Definition at line 90 of file ossimAtbPointSource.h.

Referenced by getViewPoint().

theViewPointIsValid

bool ossimAtbPointSource::theViewPointIsValid

private

Definition at line 93 of file ossimAtbPointSource.h.

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

• ossimAtbPointSource.h
• ossimAtbPointSource.cpp