Hello my fellow VTK users,
I want to embed an instance of vtkImageViewer2 into my Qt5 application to visualize a series of DICOM images. I’m currently experiencing some rendering issues because the widget doesn’t display anything.
When I’m using vtkImageViewer instead of vtkImageViewer2 it displays the first image of the series. However, I’d like to use vtkImageViewer2 because it adds a lot of functionality that I need.
Following is a self-contained code snippet that demonstrates the problem:
int main() {
QSurfaceFormat::setDefaultFormat(QVTKOpenGLNativeWidget::defaultFormat());
QApplication app(argc, argv);
QVTKOpenGLWidget widget;
vtkNew<vtkGenericOpenGLRenderWindow> renderWindow;
widget.SetRenderWindow(renderWindow);
vtkNew<vtkDICOMImageReader> reader;
reader->SetDirectoryName("/my/DICOM/images");
reader->Update();
// vtkNew<vtkImageViewer> imageViewer; // this works!!
vtkNew<vtkImageViewer2> imageViewer;
imageViewer->SetRenderWindow(renderWindow);
imageViewer->SetInputConnection(reader->GetOutputPort());
imageViewer->SetupInteractor(renderWindow->GetInteractor());
widget.show();
return app.exec();
}
P.S: Cross-post to https://stackoverflow.com/questions/57409267/rendering-issue-with-vtkimageviewer2-and-qt-works-with-vtkimageviewer