# Cutter

VTKExamples/Cxx/VisualizationAlgorithms/Cutter

### Code

Cutter.cxx

    #include <vtkSmartPointer.h>
    #include <vtkCubeSource.h>
    #include <vtkPolyDataMapper.h>
    #include <vtkPlane.h>
    #include <vtkCutter.h>
    #include <vtkProperty.h>
    #include <vtkActor.h>
    #include <vtkRenderer.h>
    #include <vtkRenderWindow.h>
    #include <vtkRenderWindowInteractor.h>

    int main(int, char *[])
    {
      vtkSmartPointer<vtkCubeSource> cube =
        vtkSmartPointer<vtkCubeSource>::New();
      cube->SetXLength(40);
      cube->SetYLength(30);
      cube->SetZLength(20);
      vtkSmartPointer<vtkPolyDataMapper> cubeMapper =
        vtkSmartPointer<vtkPolyDataMapper>::New();
      cubeMapper->SetInputConnection(cube->GetOutputPort());

      // Create a plane to cut,here it cuts in the XZ direction (xz normal=(1,0,0);XY =(0,0,1),YZ =(0,1,0)
      vtkSmartPointer<vtkPlane> plane =
        vtkSmartPointer<vtkPlane>::New();
      plane->SetOrigin(10,0,0);
      plane->SetNormal(1,0,0);

      // Create cutter
      vtkSmartPointer<vtkCutter> cutter =
        vtkSmartPointer<vtkCutter>::New();
      cutter->SetCutFunction(plane);
      cutter->SetInputConnection(cube->GetOutputPort());
      cutter->Update();

      vtkSmartPointer<vtkPolyDataMapper> cutterMapper =
        vtkSmartPointer<vtkPolyDataMapper>::New();
      cutterMapper->SetInputConnection( cutter->GetOutputPort());

      // Create plane actor
      vtkSmartPointer<vtkActor> planeActor =
        vtkSmartPointer<vtkActor>::New();
      planeActor->GetProperty()->SetColor(1.0,1,0);
      planeActor->GetProperty()->SetLineWidth(2);
      planeActor->SetMapper(cutterMapper);

      // Create cube actor
      vtkSmartPointer<vtkActor> cubeActor =
        vtkSmartPointer<vtkActor>::New();
      cubeActor->GetProperty()->SetColor(0.5,1,0.5);
      cubeActor->GetProperty()->SetOpacity(0.5);
      cubeActor->SetMapper(cubeMapper);

      // Create renderers and add actors of plane and cube
      vtkSmartPointer<vtkRenderer> renderer =
        vtkSmartPointer<vtkRenderer>::New();
      renderer->AddActor(planeActor); //display the rectangle resulting from the cut
      renderer->AddActor(cubeActor); //display the cube

      // Add renderer to renderwindow and render
      vtkSmartPointer<vtkRenderWindow> renderWindow =
        vtkSmartPointer<vtkRenderWindow>::New();
      renderWindow->AddRenderer(renderer);
      renderWindow->SetSize(600, 600);

      vtkSmartPointer<vtkRenderWindowInteractor> interactor =
        vtkSmartPointer<vtkRenderWindowInteractor>::New();
      interactor->SetRenderWindow(renderWindow);
      renderer->SetBackground(0,0,0);
      renderWindow->Render();

      interactor->Start();

      return EXIT_SUCCESS;
    }

### CMakeLists.txt

    cmake_minimum_required(VERSION 2.8)

    PROJECT(Cutter)

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

    add_executable(Cutter MACOSX_BUNDLE Cutter.cxx )

    target_link_libraries(Cutter ${VTK_LIBRARIES})

### Download and Build Cutter

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

    cd Cutter/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:

    ./Cutter

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.