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# Glyph2D

VTKEx/Java/Filtering/Glyph2D

### Description

Copy a 2D glyph to every point in the input set. We use a hexagon for the demo.

Other languages

See (Cxx), (Python)

Question

If you have a simple question about this example contact us at VTKExProject If your question is more complex and may require extended discussion, please use the VTK Discourse Forum

### Code

Glyph2D.java

    import vtk.vtkNativeLibrary;
    import vtk.vtkRenderWindowInteractor;
    import vtk.vtkNamedColors;
    import vtk.vtkRenderWindow;
    import vtk.vtkRenderer;
    import vtk.vtkPolyDataMapper;
    import vtk.vtkActor;
    import vtk.vtkPoints;
    import vtk.vtkPolyData;
    import vtk.vtkGlyph2D;
    import vtk.vtkInteractorStyleImage;
    import vtk.vtkRegularPolygonSource;

    public class Glyph2D
    {
      // -----------------------------------------------------------------
      // Load VTK library and print which library was not properly loaded
      static
      {
        if (!vtkNativeLibrary.LoadAllNativeLibraries())
        {
          for (vtkNativeLibrary lib : vtkNativeLibrary.values())
          {
            if (!lib.IsLoaded())
            {
              System.out.println(lib.GetLibraryName() + " not loaded");
            }
          }
        }
        vtkNativeLibrary.DisableOutputWindow(null);
      }
      // -----------------------------------------------------------------

      public static void main(String s[])
      {
        vtkNamedColors Color = new vtkNamedColors();

        //For Renderer Background Color
        double BgColor[] = new double[4];

        //Change Color Name to Use your own Color for Renderer Background
        Color.GetColor("IndianRed",BgColor);

        vtkPoints Points = new vtkPoints();
        Points.InsertNextPoint(0, 0, 0);
        Points.InsertNextPoint(1, 1, 0);
        Points.InsertNextPoint(2, 2, 0);

        vtkPolyData PolyData = new vtkPolyData();
        PolyData.SetPoints(Points);

        vtkRegularPolygonSource PolygonSource = new vtkRegularPolygonSource();

        vtkGlyph2D Glyph2D = new vtkGlyph2D();
        Glyph2D.SetSourceConnection(PolygonSource.GetOutputPort());
        Glyph2D.SetInputData(PolyData);
        Glyph2D.Update();

        vtkPolyDataMapper Mapper = new vtkPolyDataMapper();
        Mapper.SetInputConnection(Glyph2D.GetOutputPort());
        Mapper.Update();

        vtkActor Actor = new vtkActor();
        Actor.SetMapper(Mapper);

        // Create the renderer, render window and interactor.
        vtkRenderer ren = new vtkRenderer();
        vtkRenderWindow renWin = new vtkRenderWindow();
        renWin.AddRenderer(ren);
        vtkRenderWindowInteractor iren = new vtkRenderWindowInteractor();
        iren.SetRenderWindow(renWin);

        // Visualise
        ren.AddActor(Actor);
        vtkInteractorStyleImage Style = new vtkInteractorStyleImage();
        iren.SetInteractorStyle(Style);

        ren.SetBackground(BgColor);
        ren.ResetCamera();

        renWin.SetSize(300,300);
        renWin.Render();

        iren.Initialize();
        iren.Start();
      }
    }