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package vtk.sample;
import java.awt.BorderLayout;
import java.io.File;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import vtk.vtkActor;
import vtk.vtkCanvas;
import vtk.vtkCellPicker;
import vtk.vtkImageData;
import vtk.vtkImagePlaneWidget;
import vtk.vtkNativeLibrary;
import vtk.vtkOutlineFilter;
import vtk.vtkPolyDataMapper;
import vtk.vtkVolume16Reader;
import vtk.vtkAlgorithmOutput;
/**
* Example of complex 3D widget in use.
*/
public class ImagePlaneWidget extends vtkCanvas {
private static final long serialVersionUID = 1L;
private int width = 512;
private int height = 512;
// -----------------------------------------------------------------
// 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 ImagePlaneWidget(String path) {
// Start by loading some data.
vtkVolume16Reader v16 = new vtkVolume16Reader();
v16.SetDataDimensions(64, 64);
v16.SetDataByteOrderToLittleEndian();
v16.SetFilePrefix(path);
v16.SetImageRange(1, 93);
v16.SetDataSpacing(3.2, 3.2, 1.5);
v16.Update();
setImageData(v16.GetOutput(), v16.GetOutputPort());
JPanel p = new JPanel();
p.setLayout(new BorderLayout());
p.add(this, BorderLayout.CENTER);
JFrame frame = new JFrame("ImagePlaneWidget Test");
frame.setBounds(10, 10, width, height);
frame.getContentPane().add(p, BorderLayout.CENTER);
frame.setVisible(true);
frame.pack();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public void setImageData(vtkImageData id, vtkAlgorithmOutput out) {
// The shared picker enables us to use 3 planes at one time
// and gets the picking order right
vtkCellPicker picker = new vtkCellPicker();
picker.SetTolerance(0.005);
// The 3 image plane widgets are used to probe the dataset.
vtkImagePlaneWidget planeWidgetX = new vtkImagePlaneWidget();
planeWidgetX.DisplayTextOn();
planeWidgetX.SetInputData(id);
planeWidgetX.SetInteractor(getRenderWindowInteractor());
planeWidgetX.SetPlaneOrientationToXAxes();
planeWidgetX.SetSliceIndex(32);
planeWidgetX.SetPicker(picker);
planeWidgetX.SetKeyPressActivationValue('x');
planeWidgetX.GetPlaneProperty().SetColor(1, 0, 0);
planeWidgetX.On();
vtkImagePlaneWidget planeWidgetY = new vtkImagePlaneWidget();
planeWidgetY.DisplayTextOn();
planeWidgetY.SetInputData(id);
planeWidgetY.SetInteractor(getRenderWindowInteractor());
planeWidgetY.SetPlaneOrientationToYAxes();
planeWidgetY.SetSliceIndex(32);
planeWidgetY.SetPicker(picker);
planeWidgetY.SetKeyPressActivationValue('y');
planeWidgetY.GetPlaneProperty().SetColor(1, 1, 0);
planeWidgetY.SetLookupTable(planeWidgetX.GetLookupTable());
planeWidgetY.On();
// for the z-slice, turn off texture interpolation:
// interpolation is now nearest neighbour, to demonstrate
// cross-hair cursor snapping to pixel centers
vtkImagePlaneWidget planeWidgetZ = new vtkImagePlaneWidget();
planeWidgetZ.DisplayTextOn();
planeWidgetZ.SetInputData(id);
planeWidgetZ.TextureInterpolateOff();
planeWidgetZ.SetInteractor(getRenderWindowInteractor());
planeWidgetZ.SetPlaneOrientationToZAxes();
planeWidgetZ.SetSliceIndex(46);
planeWidgetZ.SetPicker(picker);
planeWidgetZ.SetKeyPressActivationValue('z');
planeWidgetZ.GetPlaneProperty().SetColor(0, 0, 1);
planeWidgetZ.SetLookupTable(planeWidgetX.GetLookupTable());
planeWidgetZ.On();
// An outline is shown for context.
vtkOutlineFilter outline = new vtkOutlineFilter();
outline.SetInputConnection(out);
vtkPolyDataMapper outlineMapper = new vtkPolyDataMapper();
outlineMapper.SetInputConnection(outline.GetOutputPort());
vtkActor outlineActor = new vtkActor();
outlineActor.SetMapper(outlineMapper);
GetRenderer().AddActor(outlineActor);
// Add the outline actor to the renderer, set the background and size
GetRenderer().GetCullers().RemoveAllItems();
GetRenderer().SetBackground(0.1, 0.1, 0.2);
}
static public void printUsage(String err) {
if (!err.equals("")) {
System.err.println("Error: " + err);
}
System.err.println("Usage: java ImagePlaneWidget [-D path]");
System.err.println("Where:");
System.err.println(" path is location of your VTKData directory");
System.exit(-1);
}
public static void main(String[] argv) {
int argSize = argv.length;
String pathToVTKData = "";
int argCurrent = 0;
try {
while (argSize > argCurrent) {
if (argv[argCurrent].equals("-D")) {
++argCurrent;
pathToVTKData = argv[argCurrent];
++argCurrent;
} else {
ImagePlaneWidget.printUsage("");
}
}
} catch (Exception e) {
ImagePlaneWidget.printUsage("");
}
if (pathToVTKData.equals(""))
ImagePlaneWidget.printUsage("");
final File f = new File(pathToVTKData + "/Data/headsq");
if (!f.exists() || !f.canRead() || !f.isDirectory())
ImagePlaneWidget.printUsage(f.getAbsolutePath() + " does not exist or cannot be read.");
SwingUtilities.invokeLater(new Runnable() {
public void run() {
new ImagePlaneWidget(f.getAbsolutePath() + "/quarter");
}
});
}
}
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