ossimMG4LidarReader.h

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//----------------------------------------------------------------------------
//
// License:  LGPL
// 
// See LICENSE.txt file in the top level directory for more details.
//
// Description:  Class declaration MrSID MG4 reader.
//
// Author: Mingjie Su
//
// Specification: ISO/IEC 15444
//
//----------------------------------------------------------------------------
// $Id: ossimMG4LidarReader.h 1524 2010-10-29 19:31:54Z ming.su$

#ifndef ossimMG4LidarReader_HEADER
#define ossimMG4LidarReader_HEADER 1

#include <float.h>
#include <ossim/plugin/ossimPluginConstants.h>
#include <ossim/base/ossimIpt.h>
#include <ossim/base/ossimIrect.h>
#include <ossim/imaging/ossimImageHandler.h>
#include <ossim/support_data/ossimJ2kSizRecord.h>
#include <ossim/imaging/ossimAppFixedTileCache.h>

//LizardTech Includes
#include <lidar/MG4PointReader.h>
#include <lidar/Error.h>
#include <lidar/Version.h>

LT_USE_LIDAR_NAMESPACE

// Forward class declarations.
class ossimImageData;
class ossimDpt;

class OSSIM_PLUGINS_DLL ossimMG4LidarReader : public ossimImageHandler
{
public:

   ossimMG4LidarReader();
   
   virtual ~ossimMG4LidarReader();

   virtual ossimString getShortName() const;
   
   virtual ossimString getLongName()  const;

   virtual ossimString getClassName() const;

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

   virtual ossim_uint32 getNumberOfInputBands() const;

   virtual ossim_uint32 getNumberOfOutputBands()const; 
   virtual ossim_uint32 getImageTileWidth() const;

   virtual ossim_uint32 getImageTileHeight() const;

   virtual ossimScalarType getOutputScalarType() const;
   

   virtual ossim_uint32 getNumberOfDecimationLevels()const;

   virtual ossim_uint32 getNumberOfLines(ossim_uint32 resLevel = 0) const;

   virtual ossim_uint32 getNumberOfSamples(ossim_uint32 resLevel = 0) const;

   virtual bool open();

   virtual bool isOpen()const;

   virtual void closeEntry();

   virtual ossimRefPtr<ossimImageGeometry> getImageGeometry();

   virtual ossimRefPtr<ossimImageGeometry> getInternalImageGeometry() const;

   virtual bool loadState(const ossimKeywordlist& kwl, const char* prefix=0);   

private:

  ossimProjection* getGeoProjection();

  void getDataType(ossim_int32 channelId);

  void openZoomLevel(ossim_int32 zoom);

  template<typename DTYPE>
     const DTYPE getChannelElement(const ChannelData* channel, size_t idx);

  MG4PointReader*              m_reader;
  Bounds                       m_bounds;
  ossimIrect                   m_imageRect; 
  ossim_uint32                 m_numberOfSamples;
  ossim_uint32                 m_numberOfLines;
  ossimScalarType              m_scalarType;
  ossimRefPtr<ossimImageData>  m_tile;
TYPE_DATA
};

#endif /* #ifndef ossimMG4LidarReader_HEADER */