# VisualizeImageData

VTKExamples/Cxx/Visualization/VisualizeImageData

### Code

VisualizeImageData.cxx

    #include <vtkVersion.h>
    #include <vtkSmartPointer.h>
    #include <vtkImageData.h>
    #include <vtkDataSetMapper.h>
    #include <vtkActor.h>
    #include <vtkRenderWindow.h>
    #include <vtkRenderer.h>
    #include <vtkRenderWindowInteractor.h>

    int main(int, char*[])
    {
      // Create an image data
      vtkSmartPointer<vtkImageData> imageData =
        vtkSmartPointer<vtkImageData>::New();

      // Specify the size of the image data
      imageData->SetDimensions(3,3,2);
      imageData->SetSpacing(1.0, 1.0, 1.0);
      imageData->SetOrigin(0.0, 0.0, 0.0);

      vtkSmartPointer<vtkDataSetMapper> mapper =
        vtkSmartPointer<vtkDataSetMapper>::New();
    #if VTK_MAJOR_VERSION <= 5
      mapper->SetInputConnection(imageData->GetProducerPort());
    #else
      mapper->SetInputData(imageData);
    #endif
      vtkSmartPointer<vtkActor> actor =
        vtkSmartPointer<vtkActor>::New();
      actor->SetMapper(mapper);

      vtkSmartPointer<vtkRenderWindow> renderWindow =
        vtkSmartPointer<vtkRenderWindow>::New();

      vtkSmartPointer<vtkRenderer> renderer =
        vtkSmartPointer<vtkRenderer>::New();

      // Add both renderers to the window
      renderWindow->AddRenderer(renderer);

      // Add a sphere to the left and a cube to the right
      renderer->AddActor(actor);

      renderer->ResetCamera();

      vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
        vtkSmartPointer<vtkRenderWindowInteractor>::New();
      renderWindowInteractor->SetRenderWindow(renderWindow);
      renderWindow->Render();
      renderWindowInteractor->Start();

      return EXIT_SUCCESS;
    }

### CMakeLists.txt

    cmake_minimum_required(VERSION 2.8)

    PROJECT(VisualizeImageData)

    find_package(VTK REQUIRED)
    include(${VTK_USE_FILE})

    add_executable(VisualizeImageData MACOSX_BUNDLE VisualizeImageData.cxx )

    target_link_libraries(VisualizeImageData ${VTK_LIBRARIES})

### Download and Build VisualizeImageData

Click here to download VisualizeImageData and its CMakeLists.txt file. Once the tarball VisualizeImageData.tar has been downloaded and extracted,

    cd VisualizeImageData/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:

    ./VisualizeImageData

WINDOWS USERS

Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.