# RTAnalyticSource

VTKExamples/Cxx/Images/RTAnalyticSource

### Code

RTAnalyticSource.cxx

    #include <vtkSmartPointer.h>
    #include <vtkActor.h>
    #include <vtkImageActor.h>
    #include <vtkImageMapper3D.h>
    #include <vtkImageData.h>
    #include <vtkInteractorStyleImage.h>
    #include <vtkRenderWindow.h>
    #include <vtkRenderWindowInteractor.h>
    #include <vtkRenderer.h>
    #include <vtkRTAnalyticSource.h>

    int main(int, char*[])
    {
      vtkSmartPointer<vtkRTAnalyticSource> analyticSource =
        vtkSmartPointer<vtkRTAnalyticSource>::New();
      analyticSource->SetWholeExtent(-10,10, -10,10, 0,0);

      vtkSmartPointer<vtkImageActor> imageActor =
        vtkSmartPointer<vtkImageActor>::New();
      imageActor->GetMapper()->SetInputConnection(
        analyticSource->GetOutputPort());

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

      vtkSmartPointer<vtkRenderWindowInteractor> interactor =
        vtkSmartPointer<vtkRenderWindowInteractor>::New();

      vtkSmartPointer<vtkInteractorStyleImage> style =
        vtkSmartPointer<vtkInteractorStyleImage>::New();
      interactor->SetInteractorStyle( style );

      interactor->SetRenderWindow(renderWindow);

      // Setup both renderers
      vtkSmartPointer<vtkRenderer> renderer =
        vtkSmartPointer<vtkRenderer>::New();
      renderer->SetBackground(1,0,0);
      renderWindow->AddRenderer(renderer);

      renderer->AddActor(imageActor);

      renderer->ResetCamera();

      renderWindow->Render();
      interactor->Start();

      return EXIT_SUCCESS;
    }

### CMakeLists.txt

    cmake_minimum_required(VERSION 2.8)

    PROJECT(RTAnalyticSource)

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

    add_executable(RTAnalyticSource MACOSX_BUNDLE RTAnalyticSource.cxx )

    target_link_libraries(RTAnalyticSource ${VTK_LIBRARIES})

### Download and Build RTAnalyticSource

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

    cd RTAnalyticSource/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:

    ./RTAnalyticSource

WINDOWS USERS

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