[vtkusers] Please help this beginner of the VTK

[ÿffffd6NDER AYDEMÿffffddR]

Hi all;
  I want to read a volume data and show that on the screen, (using C++) The voume data`s extension is .raw .I tried but I haven`t achieved yet. Could you tell me the problem?
  here my codes;
   
  #include "vtkImageReader2.h"
  #include "vtkImageViewer2.h"
  #include <iostream>
  void main ()
  {
  //Reading .raw volume data
  vtkImageReader2 *Reader=vtkImageReader2::New(); 
  vtkImageViewer2 *viewer = vtkImageViewer2::New(); 
  Reader->SetFilePrefix("C:\Documents and Settings\aydemir\Desktop\CAD");
  Reader->SetFilePattern("%s%.d.img");
  Reader->SetDataScalarTypeToUnsignedShort();
  Reader->SetDataByteOrderToBigEndian();
  Reader->SetDataExtent(0,255,0,255,1,28);//
  Reader->SetDataSpacing(1,1,1.7);
  Reader->Update(); 
  viewer->SetInput(Reader->GetOutput()); 
  int VolData_Images = viewer->GetWholeZMax (); 
   
  for (int i=1;i<VolData_Images;i++)
  {
  
  viewer->SetZSlice(i); 
  viewer->SetSize(512,512);
  viewer->SetPosition(500,0);
  viewer->SetColorWindow(512);
  viewer->SetColorLevel(256);
  viewer->Render();
  }
  }



 

 
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