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dox/IO/vtkImageReader.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkImageReader.h,v $
00005 
00006   Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
00007   All rights reserved.
00008   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
00009 
00010      This software is distributed WITHOUT ANY WARRANTY; without even
00011      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
00012      PURPOSE.  See the above copyright notice for more information.
00013 
00014 =========================================================================*/
00029 #ifndef __vtkImageReader_h
00030 #define __vtkImageReader_h
00031 
00032 #include "vtkImageReader2.h"
00033 
00034 class vtkTransform;
00035 
00036 #define VTK_FILE_BYTE_ORDER_BIG_ENDIAN 0
00037 #define VTK_FILE_BYTE_ORDER_LITTLE_ENDIAN 1
00038 
00039 class VTK_IO_EXPORT vtkImageReader : public vtkImageReader2
00040 {
00041 public:
00042   static vtkImageReader *New();
00043   vtkTypeRevisionMacro(vtkImageReader,vtkImageReader2);
00044   void PrintSelf(ostream& os, vtkIndent indent);   
00045 
00047 
00049   vtkSetVector6Macro(DataVOI,int);
00050   vtkGetVector6Macro(DataVOI,int);
00052   
00054 
00055   vtkGetMacro(DataMask,unsigned short);
00056   void SetDataMask(int val) 
00057     {
00058       if (val == this->DataMask)
00059         {
00060         return;
00061         }
00062       this->DataMask = static_cast<unsigned short>(val);
00063       this->Modified();
00064     }
00066   
00068 
00071   virtual void SetTransform(vtkTransform*);
00072   vtkGetObjectMacro(Transform,vtkTransform);
00074 
00075   // Warning !!!
00076   // following should only be used by methods or template helpers, not users
00077   void ComputeInverseTransformedExtent(int inExtent[6],
00078                                        int outExtent[6]);
00079   void ComputeInverseTransformedIncrements(vtkIdType inIncr[3],
00080                                            vtkIdType outIncr[3]);
00081 
00082   int OpenAndSeekFile(int extent[6], int slice);
00083   
00085 
00086   vtkSetStringMacro(ScalarArrayName);
00087   vtkGetStringMacro(ScalarArrayName);
00089   
00090 protected:
00091   vtkImageReader();
00092   ~vtkImageReader();
00093 
00094   unsigned short DataMask;  // Mask each pixel with ...
00095 
00096   vtkTransform *Transform;
00097 
00098   void ComputeTransformedSpacing (double Spacing[3]);
00099   void ComputeTransformedOrigin (double origin[3]);
00100   void ComputeTransformedExtent(int inExtent[6],
00101                                 int outExtent[6]);
00102   void ComputeTransformedIncrements(vtkIdType inIncr[3],
00103                                     vtkIdType outIncr[3]);
00104 
00105   int DataVOI[6];
00106   
00107   char *ScalarArrayName;
00108   
00109   virtual int RequestInformation(vtkInformation* request,
00110                                  vtkInformationVector** inputVector,
00111                                  vtkInformationVector* outputVector);
00112 
00113   void ExecuteData(vtkDataObject *data);
00114 private:
00115   vtkImageReader(const vtkImageReader&);  // Not implemented.
00116   void operator=(const vtkImageReader&);  // Not implemented.
00117 };
00118 
00119 #endif

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