[Insight-users] Converting from 3DS model to DICOM image

[Bill Lorensen]

3D Studio models are made of of triangles. The DICOM implementation
only supports images.

On Wed, Oct 29, 2008 at 8:04 AM, Víctor Rodrigo Córdoba
<vrcordoba at gmail.com> wrote:
> Hi all.
>
> I'm doing an application to convert 3ds liver models to DICOM images. I
> think the main code must look like this (First import to vtk and then import
> to itk):
>
>     // Import to VTK
>     vtk3DSImporter *importer = vtk3DSImporter::New();
>     importer->SetFileName(dirIn);
>     importer->ComputeNormalsOn();
>     importer->Read();
>     vtkImplicitModeller* polyToImage = vtkImplicitModeller::New();
>     polyToImage->SetInput((vtkDataSet*)importer->MeshList->aPolyData);
>     polyToImage->SetSampleDimensions(10, 10, 10);
>     polyToImage->SetMaximumDistance(0.25);
>     vtkImageData* vtkData = polyToImage->GetOutput();
>     vtkData->Update();
>
>     // Import to ITK
>     typedef itk::Image<signed short,3> imageDICOM;
>     typedef itk::VTKImageToImageFilter<imageDICOM> VTK2ITKFilter;
>     VTK2ITKFilter::Pointer vtk2itk = VTK2ITKFilter::New();
>     vtk2itk->SetInput(vtkData);
>     vtk2itk->Update();
>
>     // Saving like DICOM
>     typedef itk::ImageFileWriter < imageDICOM > WriterType;
>     typedef itk::GDCMImageIO ImageIOType;
>     ImageIOType::Pointer gdcmImageIO = ImageIOType::New();
>     WriterType::Pointer writer = WriterType::New();
>     strncpy(dirOut,dirIn,tamanyoDir);
>     strcat(dirOut,".dcm");
>     writer->SetFileName(dirOut);
>     writer->SetInput(vtk2itk->GetOutput());
>     writer->SetImageIO(gdcmImageIO);
>     try {
>             writer->Update();
>         }
>     catch ( itk::ExceptionObject & anException ) {
>         std::cerr << "\n\n** Exception in File Writer:  " << anException
>         << " **\n\n" << std::endl;
>         return EXIT_FAILURE;
>         };
>
> This code crash at vtk2itk->Update(); and I don't know what to do.
> All suggestions will be welcomed.
>
> Thanks.
>
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