ossimShiftFilter.h

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//----------------------------------------------------------------------------
// License:  MIT
// 
// See LICENSE.txt file in the top level directory for more details.
//
// Author:  David Burken
//
// Description:
//
// Filter for shifting input to an output range.  See class description
// below for more.
// 
//----------------------------------------------------------------------------
// $Id$
#ifndef ossimShiftFilter_HEADER
#define ossimShiftFilter_HEADER 1

#include <ossim/imaging/ossimImageSourceFilter.h>
#include <ossim/base/ossimConstants.h>
#include <ossim/imaging/ossimImageData.h>

class OSSIMDLLEXPORT ossimShiftFilter : public ossimImageSourceFilter
{
public:

   ossimShiftFilter();

   virtual void initialize();

   virtual ossimRefPtr<ossimImageData> getTile(const ossimIrect& tileRect,
                                               ossim_uint32 resLevel=0);
   virtual ossimString getClassName() const;

   virtual ossimString getLongName()  const;

   virtual ossimString getShortName() const;

   
   virtual double getNullPixelValue(ossim_uint32 band)const;

   virtual double getMinPixelValue(ossim_uint32 band)const;
   
   virtual double getMaxPixelValue(ossim_uint32 band)const;

   void setNullPixelValue(double null);

   void setMinPixelValue(double min);

   void setMaxPixelValue(double max);

protected:

   virtual ~ossimShiftFilter();

private:
   
   ossimShiftFilter(const ossimShiftFilter&);

   ossimShiftFilter& operator=(const ossimShiftFilter&);

   void allocate();

   template <class T> void fillTile(T dummy,
                                    const ossimImageData* inputTile,
                                    ossimImageData* outputTile) const;
   
   ossimRefPtr<ossimImageData> m_tile;
   double m_min;
   double m_max;
   double m_null;

TYPE_DATA
};

#endif /* #ifndef ossimShiftFilter_HEADER */