VolumeViz/readers/SoVRDicomFileReader.h

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**=======================================================================*/
/*=======================================================================
** Author      : L.Taboni (Apr 2004)
**=======================================================================*/
#ifndef  _SO_VR_DICOM_FILE_READER_
#define  _SO_VR_DICOM_FILE_READER_

#ifdef _WIN32
#pragma warning( push )
#pragma warning(disable:4251)
#endif

#include <LDM/readers/SoVolumeReader.h>
#include <VolumeViz/readers/SoVRDicomData.h>
#include <VolumeViz/nodes/SoVolumeData.h>

class SiDicomSliceVector;
class SoDicomSliceCache;

 class  SoVRDicomFileReader : public SoVolumeReader  
 {

   SO_FIELDCONTAINER_HEADER(SoVRDicomFileReader);

 public:
  SoVRDicomFileReader ();

  virtual int setFilename( const SbString& filename );

  int setFilenamePattern( const SbString& pattern );

  int setFilenameList(const SbStringList& filenameList);

  SbBool setFilenameList(const SbString& format, const int startIndex = 0, const int endIndex = INT_MAX, const int indexStep = 1);

  bool setFilenameListFromSeries( const SbString& base );

  SbBool setDirectory(const SbString& folder);

  virtual ReadError getDataChar (SbBox3f &size, SoDataSet::DataType &type, SbVec3i32 &dim);

  virtual SbBool setOutputDataType( SbBool doChange, SoDataSet::DataType type );


  virtual void getSubSlice (const SbBox2i32 &subSlice, int sliceNumber, void *data);

  int getNumSignificantBits();

  virtual ReaderType getReaderType ()
  {return DICOM;}

  const SoVRDicomData& getDicomData() const;

  const SiDicomDataSet* getDicomDataSet( const size_t sliceIdx ) const;

  void loadSliceDicomData( int slice, SoVRDicomData& dicomData ) const;

  virtual SbBool isThreadSafe() const;

  virtual void closeAllHandles();

  virtual void restoreAllHandles();

 private:

  virtual ~SoVRDicomFileReader ();

private:

  void release();
  int extractFileList (const SbString& headFile);
  SbBool isSupported ();
  SbBool accept (const SbString& fileName, SoVRDicomData &dicomData);
  void adjustHighBit( void* buffer, int highBit, int numElements );
  void adjustDataRange( void* buffer, int numElements, float rescaleSlope, float rescaleIntercept ) const;
  void extractSlices (SoVRDicomData &dicomData, int fileNumber, int &begin);

  bool loadSliceInfo();
  

private:

  bool m_isInitialized;
  bool m_hasImage;

  SbBox3f   m_size;
  SbVec3i32 m_dim;
  SbDataType m_type;
   
  int m_sizeInBytes;
  int m_bytesPerVoxel;
  int m_bitsStored;
  SbBool m_dataSigned;
  int m_highBit;
  std::vector<SbString> m_fileList;
  
  SoVRDicomData m_dicomDataRef;
  SiDicomSliceVector* m_slices;

  SoDicomSliceCache* m_cache;

  bool m_changeFormat;
  SbDataType m_typeOut;

  static std::vector<SbString> s_extensions;
};

#ifdef _WIN32
#pragma warning( pop )
#endif

#endif /* _SO_VR_DICOM_FILE_READER_ */

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Open Inventor Toolkit reference manual, generated on 12 Feb 2024
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