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dox/IO/vtkVolume16Reader.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkVolume16Reader.h,v $
00005   Language:  C++
00006 
00007   Copyright (c) 1993-2002 Ken Martin, Will Schroeder, Bill Lorensen 
00008   All rights reserved.
00009   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
00010 
00011      This software is distributed WITHOUT ANY WARRANTY; without even 
00012      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00013      PURPOSE.  See the above copyright notice for more information.
00014 
00015 =========================================================================*/
00057 #ifndef __vtkVolume16Reader_h
00058 #define __vtkVolume16Reader_h
00059 
00060 #include "vtkVolumeReader.h"
00061 
00062 class vtkTransform;
00063 class vtkUnsignedCharArray;
00064 class vtkUnsignedShortArray;
00065 
00066 #define VTK_FILE_BYTE_ORDER_BIG_ENDIAN 0
00067 #define VTK_FILE_BYTE_ORDER_LITTLE_ENDIAN 1
00068 
00069 class VTK_IO_EXPORT vtkVolume16Reader : public vtkVolumeReader
00070 {
00071 public:
00072   vtkTypeRevisionMacro(vtkVolume16Reader,vtkVolumeReader);
00073   void PrintSelf(ostream& os, vtkIndent indent);
00074 
00078   static vtkVolume16Reader *New();
00079 
00081 
00082   vtkSetVector2Macro(DataDimensions,int);
00083   vtkGetVectorMacro(DataDimensions,int,2);
00085 
00087 
00089   vtkSetMacro(DataMask,unsigned short);
00090   vtkGetMacro(DataMask,unsigned short);
00092 
00094 
00095   vtkSetMacro(HeaderSize,int);
00096   vtkGetMacro(HeaderSize,int);
00098 
00100 
00110   void SetDataByteOrderToBigEndian();
00111   void SetDataByteOrderToLittleEndian();
00112   int GetDataByteOrder();
00113   void SetDataByteOrder(int);
00114   const char *GetDataByteOrderAsString();
00116 
00118 
00119   vtkSetMacro(SwapBytes,int);
00120   vtkGetMacro(SwapBytes,int);
00121   vtkBooleanMacro(SwapBytes,int);
00123 
00125 
00128   virtual void SetTransform(vtkTransform*);
00129   vtkGetObjectMacro(Transform,vtkTransform);
00131 
00133   vtkImageData *GetImage(int ImageNumber);
00134 
00135 protected:
00136   vtkVolume16Reader();
00137   ~vtkVolume16Reader();
00138 
00139   virtual void ExecuteData(vtkDataObject *);
00140   virtual void ExecuteInformation();
00141   int   DataDimensions[2];
00142   unsigned short DataMask;
00143   int   SwapBytes;
00144   int   HeaderSize;
00145   vtkTransform *Transform;
00146 
00147   void TransformSlice (unsigned short *slice, unsigned short *pixels, int k, int dimensions[3], int bounds[3]);
00148   void ComputeTransformedDimensions(int dimensions[3]);
00149   void ComputeTransformedBounds(int bounds[6]);
00150   void ComputeTransformedSpacing(float Spacing[3]);
00151   void ComputeTransformedOrigin(float origin[3]);
00152   void AdjustSpacingAndOrigin(int dimensions[3], float Spacing[3], float origin[3]);
00153   void ReadImage(int ImageNumber, vtkUnsignedShortArray *);
00154   void ReadVolume(int FirstImage, int LastImage, vtkUnsignedShortArray *);
00155   int Read16BitImage(FILE *fp, unsigned short *pixels, int xsize, int ysize, 
00156                      int skip, int swapBytes);
00157 
00158 private:
00159   vtkVolume16Reader(const vtkVolume16Reader&);  // Not implemented.
00160   void operator=(const vtkVolume16Reader&);  // Not implemented.
00161 };
00162 
00163 #endif
00164 
00165