ImageOrientation
VTKExamples/Cxx/Visualization/ImageOrientation
Code¶
ImageOrientation.cxx
#include <vtkSmartPointer.h> #include <vtkImageData.h> #include <vtkImageMapper3D.h> #include <vtkImagePermute.h> #include <vtkRenderWindow.h> #include <vtkRenderWindowInteractor.h> #include <vtkInteractorStyleImage.h> #include <vtkRenderer.h> #include <vtkImageActor.h> #include <vtkImageEllipsoidSource.h> #include <vtkImageCast.h> int main(int, char *[]) { // Create an image vtkSmartPointer<vtkImageEllipsoidSource > source = vtkSmartPointer<vtkImageEllipsoidSource >::New(); source->SetWholeExtent(0, 20, 0, 20, 0, 0); source->SetCenter(10,10,0); source->SetRadius(2,5,0); source->Update(); vtkSmartPointer<vtkImagePermute> permuteFilter = vtkSmartPointer<vtkImagePermute>::New(); permuteFilter->SetInputConnection(source->GetOutputPort()); permuteFilter->SetFilteredAxes(1,0,2); permuteFilter->Update(); // Create actors vtkSmartPointer<vtkImageActor> originalActor = vtkSmartPointer<vtkImageActor>::New(); originalActor->GetMapper()->SetInputConnection( source->GetOutputPort()); vtkSmartPointer<vtkImageActor> permutedActor = vtkSmartPointer<vtkImageActor>::New(); permutedActor->GetMapper()->SetInputConnection( permuteFilter->GetOutputPort()); // Define viewport ranges // (xmin, ymin, xmax, ymax) double originalViewport[4] = {0.0, 0.0, 0.5, 1.0}; double permutedViewport[4] = {0.5, 0.0, 1.0, 1.0}; // Setup renderers vtkSmartPointer<vtkRenderer> originalRenderer = vtkSmartPointer<vtkRenderer>::New(); originalRenderer->SetViewport(originalViewport); originalRenderer->AddActor(originalActor); originalRenderer->ResetCamera(); originalRenderer->SetBackground(.4, .5, .6); vtkSmartPointer<vtkRenderer> permutedRenderer = vtkSmartPointer<vtkRenderer>::New(); permutedRenderer->SetViewport(permutedViewport); permutedRenderer->AddActor(permutedActor); permutedRenderer->ResetCamera(); permutedRenderer->SetBackground(.4, .5, .7); vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->SetSize(600, 300); renderWindow->AddRenderer(originalRenderer); renderWindow->AddRenderer(permutedRenderer); vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); vtkSmartPointer<vtkInteractorStyleImage> style = vtkSmartPointer<vtkInteractorStyleImage>::New(); renderWindowInteractor->SetInteractorStyle(style); renderWindowInteractor->SetRenderWindow(renderWindow); renderWindowInteractor->Initialize(); renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(ImageOrientation) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(ImageOrientation MACOSX_BUNDLE ImageOrientation.cxx) target_link_libraries(ImageOrientation ${VTK_LIBRARIES})
Download and Build ImageOrientation¶
Danger
The generation of tar files has not been ported to the new VTKExamples. Some tarballs may be missing or out-of-date.
Click here to download ImageOrientation and its CMakeLists.txt file. Once the tarball ImageOrientation.tar has been downloaded and extracted,
cd ImageOrientation/build
If VTK is installed:
cmake ..
If VTK is not installed but compiled on your system, you will need to specify the path to your VTK build:
cmake -DVTK_DIR:PATH=/home/me/vtk_build ..
Build the project:
make
and run it:
./ImageOrientation
WINDOWS USERS PLEASE NOTE: Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.