我正在使用 itk 阅读 DICOM 系列并将它们转换为 VTK 以进行可视化。即使我设法在具有 3 个不同方向(XY、XZ 和 YZ)的 3 个不同窗口中可视化 DICOM 系列,我什至无法单击窗口。当我单击或尝试更改查看的切片时,我的代码给出了访问冲突错误。我正在使用 ImageViewer2 来可视化切片。当我试图找出错误所在时,打开了一个名为 itkVTKImageExportBase.cxx 的文件。所指的线路是:
void VTKImageExportBase::UpdateInformationCallbackFunction(void* userData)
{
static_cast<VTKImageExportBase*>
(userData)->UpdateInformationCallback();
}
我的代码如下:
typedef itk::VTKImageExport< ImageType > ExportFilterType;
ExportFilterType::Pointer itkExporter = ExportFilterType::New();
itkExporter->SetInput( reader->GetOutput() );
// Create the vtkImageImport and connect it to the itk::VTKImageExport instance.
vtkImageImport* vtkImporter = vtkImageImport::New();
ConnectPipelines(itkExporter, vtkImporter);
pViewerXY->SetInput(vtkImporter->GetOutput());
pViewerXY->SetSlice(3);
pViewerXY->SetSliceOrientationToXY();
pViewerXY->SetupInteractor(m_pVTKWindow_1);
pViewerXY->UpdateDisplayExtent();
m_pVTKWindow_1->AddObserver(vtkCommand::KeyPressEvent, m_pVTKWindow_1_CallbackCommand);
m_pVTKWindow_1->Update();
pViewerXZ->SetInput (vtkImporter->GetOutput());
pViewerXZ->SetSliceOrientationToXZ();
pViewerXZ->SetupInteractor(m_pVTKWindow_2);
pViewerXZ->UpdateDisplayExtent();
m_pVTKWindow_2->AddObserver(vtkCommand::KeyPressEvent, m_pVTKWindow_2_CallbackCommand);
m_pVTKWindow_2->Update();
pViewerYZ->SetInput (vtkImporter->GetOutput());
pViewerYZ->SetSliceOrientationToYZ();
pViewerYZ->SetupInteractor(m_pVTKWindow_3);
pViewerYZ->UpdateDisplayExtent();
m_pVTKWindow_3->AddObserver(vtkCommand::KeyPressEvent, m_pVTKWindow_3_CallbackCommand);
m_pVTKWindow_3->Update();
pViewerXX 窗口是 imageviewer2 对象,而 m_pVTKWindow_X 是指在 wxWidgets GUI 包中使用的 wxVTK 对象。
可选:我的出口商和进口商如下:
template <typename ITK_Exporter, typename VTK_Importer>
void ConnectPipelines(ITK_Exporter exporter, VTK_Importer* importer)
{
importer->SetUpdateInformationCallback(exporter->GetUpdateInformationCallback());
importer->SetPipelineModifiedCallback(exporter->GetPipelineModifiedCallback());
importer->SetWholeExtentCallback(exporter->GetWholeExtentCallback());
importer->SetSpacingCallback(exporter->GetSpacingCallback());
importer->SetOriginCallback(exporter->GetOriginCallback());
importer->SetScalarTypeCallback(exporter->GetScalarTypeCallback());
importer->SetNumberOfComponentsCallback(exporter->GetNumberOfComponentsCallback());
importer->SetPropagateUpdateExtentCallback(exporter->GetPropagateUpdateExtentCallback());
importer->SetUpdateDataCallback(exporter->GetUpdateDataCallback());
importer->SetDataExtentCallback(exporter->GetDataExtentCallback());
importer->SetBufferPointerCallback(exporter->GetBufferPointerCallback());
importer->SetCallbackUserData(exporter->GetCallbackUserData());
}
/**
* This function will connect the given vtkImageExport filter to
* the given itk::VTKImageImport filter.
*/
template <typename VTK_Exporter, typename ITK_Importer>
void ConnectPipelines(VTK_Exporter* exporter, ITK_Importer importer)
{
importer->SetUpdateInformationCallback(exporter->GetUpdateInformationCallback());
importer->SetPipelineModifiedCallback(exporter->GetPipelineModifiedCallback());
importer->SetWholeExtentCallback(exporter->GetWholeExtentCallback());
importer->SetSpacingCallback(exporter->GetSpacingCallback());
importer->SetOriginCallback(exporter->GetOriginCallback());
importer->SetScalarTypeCallback(exporter->GetScalarTypeCallback());
importer->SetNumberOfComponentsCallback(exporter->GetNumberOfComponentsCallback());
importer->SetPropagateUpdateExtentCallback(exporter->GetPropagateUpdateExtentCallback());
importer->SetUpdateDataCallback(exporter->GetUpdateDataCallback());
importer->SetDataExtentCallback(exporter->GetDataExtentCallback());
importer->SetBufferPointerCallback(exporter->GetBufferPointerCallback());
importer->SetCallbackUserData(exporter->GetCallbackUserData());
}