Merge pull request #393 from chakravarthi589/Add_TransformFilter

Add transform filter

Former-commit-id: 2e5e3db4

src/Java.md

@@ -154,6 +154,7 @@ It would be appreciated if there are any Java VTK experts who could convert any
 [MeshQuality](/Java/PolyData/MeshQuality) | vtkMeshQuality | MeshQuality
 [ColorCellsWithRGB](/Java/PolyData/ColorCellsWithRGB) | vtkColorCellsWithRGB | ColorCellsWithRGB
 [Reflection](/Java/PolyData/Reflection) | vtkReflection | Reflection
+[TransformFilter](/Java/PolyData/TransformFilter) | vtkTransformFilter | Transforms points, associated normals and vectors
 
 
 | Example Name | Classes Demonstrated | Description | Image |

src/Java/PolyData/TransformFilter.java

+import vtk.vtkRenderWindow;
+import vtk.vtkActor;
+import vtk.vtkArrowSource;
+import vtk.vtkNativeLibrary;
+import vtk.vtkPolyDataMapper;
+import vtk.vtkNamedColors;
+import vtk.vtkRenderer;
+import vtk.vtkRenderWindowInteractor;
+import vtk.vtkTransform;
+import vtk.vtkTransformFilter;
+
+
+public class TransformFilter 
+{
+  //-----------------------------------------------------------------
+  // 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[]) 
+  {
+
+    vtkNamedColors colors = new vtkNamedColors();
+
+    //For Actor Color
+    double actorColor[] = new double[4];
+    //Renderer Background Color
+    double Bgcolor[] = new double[4];
+
+    colors.GetColor("SteelBlue", actorColor);
+    colors.GetColor("BurlyWood", Bgcolor);
+
+    //Create an Arrow
+    vtkArrowSource arrowSource = new vtkArrowSource();
+
+    vtkTransform Transform = new vtkTransform();
+    Transform.Scale(5, 1, 1);
+
+    vtkTransformFilter TransformFilter = new vtkTransformFilter();
+    TransformFilter.SetTransform(Transform);
+    TransformFilter.SetInputConnection(arrowSource.GetOutputPort());
+    TransformFilter.SetTransform(Transform);
+
+    vtkPolyDataMapper mapper = new vtkPolyDataMapper();
+    mapper.SetInputConnection(TransformFilter.GetOutputPort());
+    vtkActor actor = new vtkActor();
+    actor.SetMapper(mapper);
+    actor.GetProperty().SetColor(actorColor);
+
+    // 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 the actor
+    ren.AddActor(actor);
+    ren.SetBackground(Bgcolor);
+
+    renWin.SetSize(300, 300);
+    renWin.Render();
+
+    iren.Initialize();
+    iren.Start();
+  }
+}

src/Java/PolyData/TransformFilter.md

+### Description 
+
+vtkTransformFilter is an object to transform point coordinates, and associated point normals and vectors, as well as cell normals and vectors.
+
+Transformed data array will be stored in a float array or a double array. Other point and cel data are passed through the filter, unless TransformAllInputVectors is set to true, in this case all other 3 components arrays from point and cell data will be transformed as well.