# TextActor

VTKExamples/Java/GeometricObjects/TextActor

### Description

Java Program to demonstrate the use of vtkTextActor. TextActor can be set with properties such as FontSize, FontFamily, DisplayPosition and so on.

Other Languages

See (Cxx), (Python)

### Code

TextActor.java

    import java.awt.BorderLayout;
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;

    import javax.swing.JButton;
    import javax.swing.JFrame;
    import javax.swing.JPanel;
    import javax.swing.SwingUtilities;

    import vtk.vtkNativeLibrary;
    import vtk.vtkPanel;
    import vtk.vtkTextActor;
    import vtk.vtkNamedColors;

    public class TextActor extends JPanel implements ActionListener {
      private static final long serialVersionUID = 1L;
      private vtkPanel renWin;
      private JButton exitButton;

      // -----------------------------------------------------------------
      // 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 TextActor() {
        super(new BorderLayout());

        vtkNamedColors Color = new vtkNamedColors();
        //For Actor Color
        double ActorColor[] = new double[4];
        //For Renderer Background Color
        double BgColor[] = new double[4];

        //Change Color Name to Use your own Color for Change Actor Color
        Color.GetColor("Red",ActorColor);
        //Change Color Name to Use your own Color for Renderer Background
        Color.GetColor("Black",BgColor);

        vtkTextActor Text = new vtkTextActor();
        Text.SetInput("Hello World");
        Text.SetDisplayPosition(20, 30);
        Text.GetTextProperty().SetFontSize(40);
        Text.GetTextProperty().SetFontFamilyToArial();
        Text.GetTextProperty().BoldOn();
        Text.GetTextProperty().ShadowOn();
        Text.GetTextProperty().GetShadowOffset();
        Text.GetTextProperty().SetColor(ActorColor);

        renWin = new vtkPanel();
        renWin.GetRenderer().AddActor(Text);
        renWin.resetCamera();
        renWin.GetRenderer().SetBackground(BgColor);

        // Add Java UI components
        exitButton = new JButton("Exit");
        exitButton.addActionListener(this);

        add(renWin, BorderLayout.CENTER);
        add(exitButton, BorderLayout.SOUTH);
      }

      /** An ActionListener that listens to the button. */
      public void actionPerformed(ActionEvent e) {
        if (e.getSource().equals(exitButton)) {
          System.exit(0);
        }
      }

      public static void main(String s[]) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
              JFrame frame = new JFrame("Text Actor");
              frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
              frame.getContentPane().setLayout(new BorderLayout());
              frame.getContentPane().add(new TextActor(), BorderLayout.CENTER);
              frame.setSize(400, 400);
              frame.setLocationRelativeTo(null);
              frame.setVisible(true);
            }
          });
      }
    }