vtkVolume16Reader.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkVolume16Reader.h
 
  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
 
     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.
 
=========================================================================*/
#ifndef vtkVolume16Reader_h
#define vtkVolume16Reader_h
 
#include "vtkIOImageModule.h" // For export macro
#include "vtkVolumeReader.h"
 
class vtkTransform;
class vtkUnsignedCharArray;
class vtkUnsignedShortArray;
 
#define VTK_FILE_BYTE_ORDER_BIG_ENDIAN 0
#define VTK_FILE_BYTE_ORDER_LITTLE_ENDIAN 1
 
class VTKIOIMAGE_EXPORT vtkVolume16Reader : public vtkVolumeReader
{
public:
  vtkTypeMacro(vtkVolume16Reader,vtkVolumeReader);
  void PrintSelf(ostream& os, vtkIndent indent);
 
  static vtkVolume16Reader *New();
 
 
  vtkSetVector2Macro(DataDimensions,int);
  vtkGetVectorMacro(DataDimensions,int,2);
 
 
  vtkSetMacro(DataMask,unsigned short);
  vtkGetMacro(DataMask,unsigned short);
 
 
  vtkSetMacro(HeaderSize,int);
  vtkGetMacro(HeaderSize,int);
 
 
  void SetDataByteOrderToBigEndian();
  void SetDataByteOrderToLittleEndian();
  int GetDataByteOrder();
  void SetDataByteOrder(int);
  const char *GetDataByteOrderAsString();
 
 
  vtkSetMacro(SwapBytes,int);
  vtkGetMacro(SwapBytes,int);
  vtkBooleanMacro(SwapBytes,int);
 
 
  virtual void SetTransform(vtkTransform*);
  vtkGetObjectMacro(Transform,vtkTransform);
 
  vtkImageData *GetImage(int ImageNumber);
 
protected:
  vtkVolume16Reader();
  ~vtkVolume16Reader();
 
  virtual int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
  virtual int RequestInformation(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
  int   DataDimensions[2];
  unsigned short DataMask;
  int   SwapBytes;
  int   HeaderSize;
  vtkTransform *Transform;
 
  void TransformSlice (unsigned short *slice, unsigned short *pixels, int k, int dimensions[3], int bounds[3]);
  void ComputeTransformedDimensions(int dimensions[3]);
  void ComputeTransformedBounds(int bounds[6]);
  void ComputeTransformedSpacing(double Spacing[3]);
  void ComputeTransformedOrigin(double origin[3]);
  void AdjustSpacingAndOrigin(int dimensions[3], double Spacing[3], double origin[3]);
  void ReadImage(int ImageNumber, vtkUnsignedShortArray *);
  void ReadVolume(int FirstImage, int LastImage, vtkUnsignedShortArray *);
  int Read16BitImage(FILE *fp, unsigned short *pixels, int xsize, int ysize,
                     int skip, int swapBytes);
 
private:
  vtkVolume16Reader(const vtkVolume16Reader&);  // Not implemented.
  void operator=(const vtkVolume16Reader&);  // Not implemented.
};
 
#endif