VTK三维重建 使用VTK读取DICOM,并动态输出

 1 int main(int argc, char* argv[])
 2 {
 3    // Verify input arguments
 4    if ( argc != 2 )
 5    {
 6       std::cout << "Usage: " << argv[0]
 7       << " FolderName" << std::endl;
 8       return EXIT_FAILURE;
 9    }
10  
11    std::string folder = argv[1];
12  
13    // Read all the DICOM files in the specified directory.
14    vtkSmartPointer<vtkDICOMImageReader> reader =
15       vtkSmartPointer<vtkDICOMImageReader>::New();
16    reader->SetDirectoryName(folder.c_str());
17    reader->Update();
18  
19    // Visualize
20    vtkSmartPointer<vtkImageViewer2> imageViewer =
21       vtkSmartPointer<vtkImageViewer2>::New();
22    imageViewer->SetInputConnection(reader->GetOutputPort());
23  
24    // slice status message
25    vtkSmartPointer<vtkTextProperty> sliceTextProp = vtkSmartPointer<vtkTextProperty>::New();
26    sliceTextProp->SetFontFamilyToCourier();
27    sliceTextProp->SetFontSize(20);
28    sliceTextProp->SetVerticalJustificationToBottom();
29    sliceTextProp->SetJustificationToLeft();
30  
31    vtkSmartPointer<vtkTextMapper> sliceTextMapper = vtkSmartPointer<vtkTextMapper>::New();
32    std::string msg = StatusMessage::Format(imageViewer->GetSliceMin(), imageViewer->GetSliceMax());
33    sliceTextMapper->SetInput(msg.c_str());
34    sliceTextMapper->SetTextProperty(sliceTextProp);
35  
36    vtkSmartPointer<vtkActor2D> sliceTextActor = vtkSmartPointer<vtkActor2D>::New();
37    sliceTextActor->SetMapper(sliceTextMapper);
38    sliceTextActor->SetPosition(15, 10);
39  
40    // usage hint message
41    vtkSmartPointer<vtkTextProperty> usageTextProp = vtkSmartPointer<vtkTextProperty>::New();
42    usageTextProp->SetFontFamilyToCourier();
43    usageTextProp->SetFontSize(14);
44    usageTextProp->SetVerticalJustificationToTop();
45    usageTextProp->SetJustificationToLeft();
46  
47    vtkSmartPointer<vtkTextMapper> usageTextMapper = vtkSmartPointer<vtkTextMapper>::New();
48    usageTextMapper->SetInput("- Slice with mouse wheel\n  or Up/Down-Key\n- Zoom with pressed right\n  mouse button while dragging");
49    usageTextMapper->SetTextProperty(usageTextProp);
50  
51    vtkSmartPointer<vtkActor2D> usageTextActor = vtkSmartPointer<vtkActor2D>::New();
52    usageTextActor->SetMapper(usageTextMapper);
53    usageTextActor->GetPositionCoordinate()->SetCoordinateSystemToNormalizedDisplay();
54    usageTextActor->GetPositionCoordinate()->SetValue( 0.05, 0.95);
55  
56    vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
57       vtkSmartPointer<vtkRenderWindowInteractor>::New();
58  
59    vtkSmartPointer<myVtkInteractorStyleImage> myInteractorStyle =
60       vtkSmartPointer<myVtkInteractorStyleImage>::New();
61  
62    myInteractorStyle->SetImageViewer(imageViewer);
63    myInteractorStyle->SetStatusMapper(sliceTextMapper);
64  
65    imageViewer->SetupInteractor(renderWindowInteractor);
66    renderWindowInteractor->SetInteractorStyle(myInteractorStyle);
67  
68    imageViewer->GetRenderer()->AddActor2D(sliceTextActor);
69    imageViewer->GetRenderer()->AddActor2D(usageTextActor);
70  
71    imageViewer->Render();
72    imageViewer->GetRenderer()->ResetCamera();
73    imageViewer->Render();
74    renderWindowInteractor->Start();
75    return EXIT_SUCCESS;
76 }