[vtkusers] vtkDICOMImageReader and vtkImageShiftScale

[Bill Lorensen]

double range[1];
should be
double range[2];

On Wed, Jun 24, 2009 at 9:14 AM, Alex Duţu<alex.dutu at gmail.com> wrote:
> Thank you Francois,
>
> I have one more problem at scale->SetInputConnection or scale->SetInput. My
> code looks like this:
>
>     vtkDICOMImageReader *dicomReader = vtkDICOMImageReader::New();
>     dicomReader->SetDirectoryName("D:/MANIX/CER-CT/AVEC I.V");
>     dicomReader->SetDataScalarTypeToUnsignedShort();
>     dicomReader->UpdateWholeExtent();
>     double range[1];
>     dicomReader->GetOutput()->GetPointData()->GetScalars()->GetRange(range);
>     //I could have used
>     //dicomReader->GetOutput()->GetScalarRange(range);
>
>     vtkImageShiftScale *scale = vtkImageShiftScale::New();
>     scale->SetInputConnection(dicomReader->GetOutputPort());
>     //scale->SetInput(dicomReader->GetOutput());
>     scale->SetShift(-range[0]);
>     scale->SetScale(VTK_UNSIGNED_SHORT_MAX/(range[1]-range[0]));
>     scale->SetOutputScalarTypeToUnsignedShort();
>     scale->Update();
>
> I got this error:
>
> Unhandled exception at 0x00594c21 in RayCast.exe: 0xC0000005: Access
> violation reading location 0x40a7fc34.
>
> at
>
> int vtkAlgorithm::GetNumberOfOutputPorts()
> {
>   return this->OutputPortInformation->GetNumberOfInformationObjects();
> }
>
> and if I used scale->SetInput(dicomReader->GetOutput()); I got:
>
> Unhandled exception at 0x0058dae3 in RayCast.exe: 0xC0000005: Access
> violation reading location 0x40a7fc2c.
>
> at
>
> int vtkAlgorithm::HasExecutive()
> {
>   return this->Executive ? 1 : 0;
> }
>
> Any thoughts?
>
> Thanks,
> Alex
>
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