# OrientedGlyphs

VTKExamples/Cxx/Visualization/OrientedGlyphs

### Code

OrientedGlyphs.cxx

    #include <vtkVersion.h>
    #include <vtkSmartPointer.h>
    #include <vtkPointData.h>
    #include <vtkSphereSource.h>
    #include <vtkArrowSource.h>
    #include <vtkPolyData.h>
    #include <vtkPoints.h>
    #include <vtkGlyph3D.h>
    #include <vtkCellArray.h>
    #include <vtkPolyDataMapper.h>
    #include <vtkActor.h>
    #include <vtkRenderWindow.h>
    #include <vtkRenderer.h>
    #include <vtkRenderWindowInteractor.h>
    #include <vtkXMLPolyDataWriter.h>

    int main(int, char *[])
    {
      vtkSmartPointer<vtkSphereSource> sphereSource =
        vtkSmartPointer<vtkSphereSource>::New();
      sphereSource->Update();

      vtkSmartPointer<vtkPolyData> input =
        vtkSmartPointer<vtkPolyData>::New();
      input->ShallowCopy(sphereSource->GetOutput());

      vtkSmartPointer<vtkArrowSource> arrowSource =
        vtkSmartPointer<vtkArrowSource>::New();

      vtkSmartPointer<vtkGlyph3D> glyph3D =
        vtkSmartPointer<vtkGlyph3D>::New();
      glyph3D->SetSourceConnection(arrowSource->GetOutputPort());
      glyph3D->SetVectorModeToUseNormal();
    #if VTK_MAJOR_VERSION <= 5
      glyph3D->SetInput(input);
    #else
      glyph3D->SetInputData(input);
    #endif
      glyph3D->SetScaleFactor(.2);
      glyph3D->Update();

      // Visualize
      vtkSmartPointer<vtkPolyDataMapper> mapper =
        vtkSmartPointer<vtkPolyDataMapper>::New();
      mapper->SetInputConnection(glyph3D->GetOutputPort());

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

      vtkSmartPointer<vtkRenderer> renderer =
        vtkSmartPointer<vtkRenderer>::New();
      vtkSmartPointer<vtkRenderWindow> renderWindow =
        vtkSmartPointer<vtkRenderWindow>::New();
      renderWindow->AddRenderer(renderer);
      vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
        vtkSmartPointer<vtkRenderWindowInteractor>::New();
      renderWindowInteractor->SetRenderWindow(renderWindow);

      renderer->AddActor(actor);
      renderer->SetBackground(.3, .6, .3); // Background color green

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

      return EXIT_SUCCESS;
    }

### CMakeLists.txt

    cmake_minimum_required(VERSION 2.8)

    PROJECT(OrientedGlyphs)

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

    add_executable(OrientedGlyphs MACOSX_BUNDLE OrientedGlyphs.cxx )

    target_link_libraries(OrientedGlyphs ${VTK_LIBRARIES})

### Download and Build OrientedGlyphs

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

    cd OrientedGlyphs/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:

    ./OrientedGlyphs

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.