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# VisualizeRectilinearGrid

VTKEx/Java/RectilinearGrid/VisualizeRectilinearGrid

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### Code

VisualizeRectilinearGrid.java

    import vtk.vtkActor;
    import vtk.vtkNativeLibrary;
    import vtk.vtkRenderWindow;
    import vtk.vtkRenderWindowInteractor;
    import vtk.vtkRenderer;
    import vtk.vtkRectilinearGrid;
    import vtk.vtkDoubleArray;
    import vtk.vtkShrinkFilter;
    import vtk.vtkDataSetMapper;

    public class VisualizeRectilinearGrid
    {
      // -----------------------------------------------------------------
      // 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[])
      {
        // Create a grid
        vtkRectilinearGrid grid = new vtkRectilinearGrid();

        grid.SetDimensions(2,3,2);

        vtkDoubleArray xArray = new vtkDoubleArray();
        xArray.InsertNextValue(0.0);
        xArray.InsertNextValue(2.0);

        vtkDoubleArray yArray = new vtkDoubleArray();
        yArray.InsertNextValue(0.0);
        yArray.InsertNextValue(1.0);
        yArray.InsertNextValue(2.0);

        vtkDoubleArray zArray = new vtkDoubleArray();
        zArray.InsertNextValue(0.0);
        zArray.InsertNextValue(5.0);

        grid.SetXCoordinates(xArray);
        grid.SetYCoordinates(yArray);
        grid.SetZCoordinates(zArray);

        vtkShrinkFilter shrinkFilter = new vtkShrinkFilter();
        shrinkFilter.SetInputData(grid);
        shrinkFilter.SetShrinkFactor(.8);

        // Create a mapper and actor
        vtkDataSetMapper mapper = new vtkDataSetMapper();
        mapper.SetInputConnection(shrinkFilter.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);

        // Visualize
        ren.AddActor(actor);

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

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