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) override;
 
  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, vtkTypeBool);
  vtkGetMacro(SwapBytes, vtkTypeBool);
  vtkBooleanMacro(SwapBytes, vtkTypeBool);
 
 
  virtual void SetTransform(vtkTransform*);
  vtkGetObjectMacro(Transform, vtkTransform);
 
  vtkImageData* GetImage(int ImageNumber) override;
 
protected:
  vtkVolume16Reader();
  ~vtkVolume16Reader() override;
 
  int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
  int RequestInformation(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
  int DataDimensions[2];
  unsigned short DataMask;
  vtkTypeBool 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&) = delete;
  void operator=(const vtkVolume16Reader&) = delete;
};
 
#endif