Create JPEGReader.java

Former-commit-id: 52c5e0a1

src/Java/IO/JPEGReader.java

+import vtk.vtkNativeLibrary;
+import vtk.vtkRenderWindowInteractor;
+import vtk.vtkJPEGReader;
+import vtk.vtkImageViewer2;
+
+public class JPEGReader
+{
+  // -----------------------------------------------------------------
+  // 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(.jpg) e.g Pileated.jpg ");
+      return;
+    }
+   
+    String inputFilename = args[0];
+    
+    //Read the image
+    vtkJPEGReader jpegReader = new vtkJPEGReader();
+    jpegReader.SetFileName (inputFilename);
+
+    // Visualize
+    vtkImageViewer2 imageViewer = new vtkImageViewer2();
+    imageViewer.SetInputConnection( jpegReader.GetOutputPort() );
+    vtkRenderWindowInteractor renderWindowInteractor = new vtkRenderWindowInteractor();
+    imageViewer.SetupInteractor(renderWindowInteractor);
+    imageViewer.Render();
+    imageViewer.GetRenderer().ResetCamera();
+    imageViewer.Render();
+    
+    renderWindowInteractor.Start();
+  }
+ }