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/*=========================================================================
Program: Visualization Toolkit
Module: vtkImageReader.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.
=========================================================================*/
// .NAME vtkImageReader - Superclass of transformable binary file readers.
// .SECTION Description
// vtkImageReader provides methods needed to read a region from a file.
// It supports both transforms and masks on the input data, but as a result
// is more complicated and slower than its parent class vtkImageReader2.
// .SECTION See Also
// vtkBMPReader vtkPNMReader vtkTIFFReader
#ifndef __vtkImageReader_h
#define __vtkImageReader_h
#include "vtkImageReader2.h"
class vtkTransform;
#define VTK_FILE_BYTE_ORDER_BIG_ENDIAN 0
#define VTK_FILE_BYTE_ORDER_LITTLE_ENDIAN 1
class VTK_IO_EXPORT vtkImageReader : public vtkImageReader2
{
public:
static vtkImageReader *New();
vtkTypeMacro(vtkImageReader,vtkImageReader2);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Set/get the data VOI. You can limit the reader to only
// read a subset of the data.
vtkSetVector6Macro(DataVOI,int);
vtkGetVector6Macro(DataVOI,int);
// Description:
// Set/Get the Data mask. The data mask is a simply integer whose bits are
// treated as a mask to the bits read from disk. That is, the data mask is
// bitwise-and'ed to the numbers read from disk. This ivar is stored as 64
// bits, the largest mask you will need. The mask will be truncated to the
// data size required to be read (using the least significant bits).
vtkGetMacro(DataMask, vtkTypeUInt64);
vtkSetMacro(DataMask, vtkTypeUInt64);
// Description:
// Set/Get transformation matrix to transform the data from slice space
// into world space. This matrix must be a permutation matrix. To qualify,
// the sums of the rows must be + or - 1.
virtual void SetTransform(vtkTransform*);
vtkGetObjectMacro(Transform,vtkTransform);
// Warning !!!
// following should only be used by methods or template helpers, not users
void ComputeInverseTransformedExtent(int inExtent[6],
int outExtent[6]);
void ComputeInverseTransformedIncrements(vtkIdType inIncr[3],
vtkIdType outIncr[3]);
int OpenAndSeekFile(int extent[6], int slice);
// Description:
// Set/get the scalar array name for this data set.
vtkSetStringMacro(ScalarArrayName);
vtkGetStringMacro(ScalarArrayName);
protected:
vtkImageReader();
~vtkImageReader();
vtkTypeUInt64 DataMask;
vtkTransform *Transform;
void ComputeTransformedSpacing (double Spacing[3]);
void ComputeTransformedOrigin (double origin[3]);
void ComputeTransformedExtent(int inExtent[6],
int outExtent[6]);
void ComputeTransformedIncrements(vtkIdType inIncr[3],
vtkIdType outIncr[3]);
int DataVOI[6];
char *ScalarArrayName;
virtual int RequestInformation(vtkInformation* request,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector);
void ExecuteData(vtkDataObject *data);
private:
vtkImageReader(const vtkImageReader&); // Not implemented.
void operator=(const vtkImageReader&); // Not implemented.
};
#endif
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