Volume Rendering

[Asa'd Abu-Tarif]

Hi,
I was trying to volume render the head data set using the volProt.cxx
example. The example runs fine. However, when I change the following code:
/////////////
vtkStructuredPointsReader *reader = vtkStructuredPointsReader::New();
  reader->SetFileName("c:\\vtk\\vtkdata\\ironProt.vtk");
  reader->Update();
/////////////////////

to the following:

////////////////////
vtkVolume16Reader *v16 = vtkVolume16Reader::New();
    v16->SetDataDimensions(64,64);
    v16->SetDataByteOrderToLittleEndian();
    v16->SetFilePrefix ("c:\\vtk\\vtkdata\\headsq\\quarter");
    v16->SetImageRange(1, 93);
    v16->SetDataSpacing (3.2, 3.2, 1.5);
 v16->Update();
////////////////////

the program crashes.

Can anyone tell me what I'm doing wrong?

Thanks

Asad

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