ossimOverviewSequencer.h

Go to the documentation of this file.

//----------------------------------------------------------------------------
//
// License:  See top level LICENSE.txt file.
//
// Author:  David Burken
//
// Description: Class definition for sequencer for building overview files.
// 
//----------------------------------------------------------------------------
// $Id: ossimOverviewSequencer.h 22149 2013-02-11 21:36:10Z dburken $
#ifndef ossimOverviewSequencer_HEADER
#define ossimOverviewSequencer_HEADER 1

#include <ossim/base/ossimReferenced.h>
#include <ossim/base/ossimConstants.h>
#include <ossim/base/ossimIpt.h>
#include <ossim/base/ossimMultiBandHistogram.h>
#include <ossim/imaging/ossimImageHandler.h>
#include <ossim/imaging/ossimFilterResampler.h>
#include <ossim/imaging/ossimBitMaskWriter.h>
#include <ossim/imaging/ossimMaskFilter.h>
#include <string>
#include <vector>

class ossimFilename;

class OSSIM_DLL ossimOverviewSequencer
   : public ossimReferenced, public ossimErrorStatusInterface
   
{
public:

   ossimOverviewSequencer();
   
   ossim_uint32 getNumberOfTiles()const;

   ossim_uint32 getNumberOfTilesHorizontal()const;

   ossim_uint32 getNumberOfTilesVertical()const;

   virtual void getOutputImageRectangle(ossimIrect& rect) const; 

   void setImageHandler(ossimImageHandler* input);
   
   void setBitMaskObjects(ossimBitMaskWriter* mask_writer,
                          ossimMaskFilter* mask_filter);

   void setSourceLevel(ossim_uint32 level);

   ossimHistogramMode getHistogramMode() const;

   void setHistogramMode(ossimHistogramMode mode);

   void writeHistogram();

   void writeHistogram(const ossimFilename& file);

   virtual void initialize();

   virtual void setToStartOfSequence();

   virtual ossimRefPtr<ossimImageData> getNextTile();

   virtual void slaveProcessTiles();

   virtual bool isMaster()const;

   ossimIpt getTileSize() const;

   void setTileSize(const ossimIpt& pt);

   void setResampleType(
      ossimFilterResampler::ossimFilterResamplerType resampleType);

   void setScanForMinMax(bool flag);
   
   bool getScanForMinMax() const;
   
   void setScanForMinMaxNull(bool flag);

   bool getScanForMinMaxNull() const;

   bool writeOmdFile(const std::string& file);   

protected:

   virtual ~ossimOverviewSequencer();

   void getInputTileRectangle(ossimIrect& inputRect) const;
   
   void getOutputTileRectangle(ossimIrect& outputRect) const;

   void updateTileDimensions();

   void resampleTile(const ossimImageData* inputTile);

   template <class T> void resampleTile(const ossimImageData* inputTile,
                                        T dummy);

   void clearMinMaxNullArrays();

   ossimRefPtr<ossimImageHandler>  m_imageHandler;
   ossimRefPtr<ossimBitMaskWriter> m_maskWriter;
   ossimRefPtr<ossimMaskFilter>    m_maskFilter;
   ossimRefPtr<ossimImageData>     m_tile;
   ossimIrect                      m_areaOfInterest;
   ossimIpt                        m_tileSize;
   ossim_uint32                    m_numberOfTilesHorizontal;
   ossim_uint32                    m_numberOfTilesVertical;
   ossim_uint32                    m_currentTileNumber;

   ossim_uint32                   m_sourceResLevel;

   bool                           m_dirtyFlag;

   ossim_int32                    m_decimationFactor;

   ossimFilterResampler::ossimFilterResamplerType m_resampleType;

   ossimRefPtr<ossimMultiBandHistogram> m_histogram;

   ossimHistogramMode m_histoMode;

   ossim_uint32 m_histoTileIndex;

   bool m_scanForMinMax;
   bool m_scanForMinMaxNull;
 
   std::vector<ossim_float64> m_minValues; 
   std::vector<ossim_float64> m_maxValues; 
   std::vector<ossim_float64> m_nulValues;
};

#endif /* #ifndef ossimOverviewSequencer_HEADER */