# WritePLY

VTKExamples/Java/IO/WritePLY

### Description

vtkPLYWriter object writes polygonal data in Stanford University PLY format.

The data can be written in either binary (little or big endian) or ASCII representation. As for PointData and CellData, vtkPLYWriter cannot handle normals or vectors. It only handles RGB PointData and CellData

Other Languages

See (Cxx), (Python)

### Code

WritePLY.java

    import vtk.vtkNativeLibrary;
    import vtk.vtkRenderWindow;
    import vtk.vtkRenderWindowInteractor;
    import vtk.vtkRenderer;
    import vtk.vtkActor;
    import vtk.vtkNamedColors;
    import vtk.vtkPolyDataMapper;
    import vtk.vtkPLYReader;
    import vtk.vtkPLYWriter;
    import vtk.vtkSphereSource;

    public class WritePLY
    {
      // -----------------------------------------------------------------
      // 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 args[])
      {

        //parse command line arguments
        if (args.length != 1)
        {
          System.err.println("Usage: java -classpath ... Filename(.ply) e.g sphere.ply");
          return;
        }
        String Filename = args[0];

        vtkNamedColors Color = new vtkNamedColors();

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

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

        vtkSphereSource sphereSource = new vtkSphereSource();
        sphereSource.Update();

        vtkPLYWriter plyWriter = new vtkPLYWriter();
        plyWriter.SetFileName(Filename);
        plyWriter.SetInputConnection(sphereSource.GetOutputPort());
        plyWriter.Write();

        //Read and display for verification
        vtkPLYReader reader = new vtkPLYReader();
        reader.SetFileName(Filename);
        reader.Update();

        //Create a mapper and actor
        vtkPolyDataMapper mapper = new vtkPolyDataMapper();
        mapper.SetInputConnection(reader.GetOutputPort());

        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);

        ren.AddActor(actor);
        ren.SetBackground(BgColor);

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

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

      }
    }