# Actor2D

VTKExamples/Cxx/Images/Actor2D

### Code

Actor2D.cxx

    #include <vtkVersion.h>
    #include <vtkSmartPointer.h>
    #include <vtkCubeSource.h>
    #include <vtkPolyData.h>
    #include <vtkPoints.h>
    #include <vtkVertexGlyphFilter.h>
    #include <vtkRenderWindow.h>
    #include <vtkRenderer.h>
    #include <vtkRenderWindowInteractor.h>
    #include <vtkActor2D.h>
    #include <vtkPolyDataMapper2D.h>
    #include <vtkProperty2D.h>

    int main(int, char *[])
    {
      vtkSmartPointer<vtkPoints> points =
        vtkSmartPointer<vtkPoints>::New();
      points->InsertNextPoint(10,10,0);
      points->InsertNextPoint(100,100,0);
      points->InsertNextPoint(200,200,0);

      vtkSmartPointer<vtkPolyData> polydata =
        vtkSmartPointer<vtkPolyData>::New();
      polydata->SetPoints(points);

      vtkSmartPointer<vtkVertexGlyphFilter> glyphFilter =
        vtkSmartPointer<vtkVertexGlyphFilter>::New();
    #if VTK_MAJOR_VERSION <= 5
      glyphFilter->SetInputConnection(polydata->GetProducerPort());
    #else
      glyphFilter->SetInputData(polydata);
    #endif
      glyphFilter->Update();

      vtkSmartPointer<vtkPolyDataMapper2D> mapper =
        vtkSmartPointer<vtkPolyDataMapper2D>::New();
      mapper->SetInputConnection(glyphFilter->GetOutputPort());
      mapper->Update();

      vtkSmartPointer<vtkActor2D> actor =
        vtkSmartPointer<vtkActor2D>::New();
      actor->SetMapper(mapper);

      // Create a renderer, render window, and interactor
      vtkSmartPointer<vtkRenderer> renderer =
        vtkSmartPointer<vtkRenderer>::New();
      vtkSmartPointer<vtkRenderWindow> renderWindow =
        vtkSmartPointer<vtkRenderWindow>::New();
      renderWindow->AddRenderer(renderer);
      vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
        vtkSmartPointer<vtkRenderWindowInteractor>::New();
      renderWindowInteractor->SetRenderWindow(renderWindow);

      // Add the actor to the scene
      renderer->AddActor(actor);
      renderWindow->SetSize(300,300);
      actor->GetProperty()->SetColor(0,1,0);
      actor->GetProperty()->SetPointSize(3);

      // Render and interact
      renderWindow->Render();
      renderWindowInteractor->Start();

      return EXIT_SUCCESS;
    }

### CMakeLists.txt

    cmake_minimum_required(VERSION 2.8)

    PROJECT(Actor2D)

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

    add_executable(Actor2D MACOSX_BUNDLE Actor2D.cxx )

    target_link_libraries(Actor2D ${VTK_LIBRARIES})

### Download and Build Actor2D

Click here to download Actor2D and its CMakeLists.txt file. Once the tarball Actor2D.tar has been downloaded and extracted,

    cd Actor2D/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:

    ./Actor2D

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.