GDCM 2.2.1

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MPRViewer2.java
/*=========================================================================
Program: GDCM (Grassroots DICOM). A DICOM library
Copyright (c) 2006-2011 Mathieu Malaterre
All rights reserved.
See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
import vtk.*;
import gdcm.*;
import java.io.File;
/*
* Compilation:
* CLASSPATH=vtkgdcm.jar:/usr/share/java/vtk.jar javac MPRViewer2.java
*
* Usage:
* LD_LIBRARY_PATH=/usr/lib/jvm/java-6-openjdk/jre/lib/amd64/xawt:/usr/lib/jni:. CLASSPATH=/usr/share/java/vtk.jar:vtkgdcm.jar:gdcm.jar:. java MPRViewer2 BRAINX
*
*/
public class MPRViewer2
{
static {
// VTK
System.loadLibrary("vtkCommonJava");
System.loadLibrary("vtkFilteringJava");
System.loadLibrary("vtkIOJava");
System.loadLibrary("vtkImagingJava");
System.loadLibrary("vtkGraphicsJava");
System.loadLibrary("vtkRenderingJava");
System.loadLibrary("vtkHybridJava");
System.loadLibrary("vtkWidgetsJava");
// VTK-GDCM
System.loadLibrary("vtkgdcmJava");
}
static FilenamesType fns = new FilenamesType();
public static void process(String path)
{
fns.add( path );
}
// Process only files under dir
public static void visitAllFiles(File dir)
{
if (dir.isDirectory())
{
String[] children = dir.list();
for (int i=0; i<children.length; i++)
{
visitAllFiles(new File(dir, children[i]));
}
}
else
{
process(dir.getPath());
}
}
public void dointer(vtkImagePlaneWidget current_widget)
{
int cstat = current_widget.GetCursorDataStatus();
double[] v = current_widget.GetCurrentCursorPosition();
//System.out.println( cstat );
//System.out.println( v[0] );
//System.out.println( v[1] );
//System.out.println( v[2] );
planeWidgetX.SetSliceIndex( (int)v[0] );
planeWidgetY.SetSliceIndex( (int)v[1] );
planeWidgetZ.SetSliceIndex( (int)v[2] );
planeWidgetX.GetCurrentRenderer().ResetCameraClippingRange();
planeWidgetY.GetCurrentRenderer().ResetCameraClippingRange();
planeWidgetZ.GetCurrentRenderer().ResetCameraClippingRange();
}
public void startinterX()
{
dointer( planeWidgetX );
}
public void interX()
{
dointer( planeWidgetX );
}
public void endinterX()
{
}
public void startinterY()
{
dointer( planeWidgetY );
}
public void interY()
{
dointer( planeWidgetY );
}
public void endinterY()
{
}
public void startinterZ()
{
dointer( planeWidgetZ );
}
public void interZ()
{
dointer( planeWidgetZ );
}
public void endinterZ()
{
//System.out.println( "endinter" );
}
public static void AlignCamera(int slice_number, vtkImagePlaneWidget current_widget)
{
vtkImageData image = (vtkImageData)current_widget.GetInput();
vtkRenderer ren = current_widget.GetCurrentRenderer();
double[] origin = image.GetOrigin();
double ox = origin[0];
double oy = origin[1];
double oz = origin[2];
int wextent[] = image.GetWholeExtent();
int xMin = wextent[0];
int xMax = wextent[1];
int yMin = wextent[2];
int yMax = wextent[3];
int zMin = wextent[4];
int zMax = wextent[5];
double[] spacing = image.GetSpacing();
double sx = spacing[0];
double sy = spacing[1];
double sz = spacing[2];
double cx = ox+(0.5*(xMax-xMin))*sx;
double cy = oy+(0.5*(yMax-yMin))*sy;
double cz = oy+(0.5*(zMax-zMin))*sz;
double vx = 0, vy = 0, vz = 0;
double nx = 0, ny = 0, nz = 0;
int iaxis = current_widget.GetPlaneOrientation();
if ( iaxis == 0 ) {
vz = -1;
nx = ox + xMax*sx;
cx = ox + slice_number*sx;
}
else if ( iaxis == 1 ) {
vz = -1;
ny = oy+yMax*sy;
cy = oy+slice_number*sy;
}
else {
vy = 1;
nz = oz+zMax*sz;
cz = oz+slice_number*sz;
}
double px = cx+nx*2;
double py = cy+ny*2;
double pz = cz+nz*3;
vtkCamera camera = ren.GetActiveCamera();
camera.SetViewUp(vx, vy, vz);
camera.SetFocalPoint(cx, cy, cz);
camera.SetPosition(px, py, pz);
camera.OrthogonalizeViewUp();
ren.ResetCameraClippingRange();
}
private vtkImagePlaneWidget planeWidgetX = new vtkImagePlaneWidget();
private vtkImagePlaneWidget planeWidgetY = new vtkImagePlaneWidget();
private vtkImagePlaneWidget planeWidgetZ = new vtkImagePlaneWidget();
public void config()
{
//System.out.println( "config" );
planeWidgetX.GetCurrentRenderer().ResetCamera();
planeWidgetY.GetCurrentRenderer().ResetCamera();
planeWidgetZ.GetCurrentRenderer().ResetCamera();
}
public void Run(String dirname)
{
File dir = new File(dirname);
visitAllFiles(dir);
IPPSorter ipp = new IPPSorter();
ipp.SetComputeZSpacing( true );
ipp.SetZSpacingTolerance( 1e-3 );
boolean b = ipp.Sort( fns );
if(!b)
{
//throw new Exception("Could not scan");
}
double ippzspacing = ipp.GetZSpacing();
FilenamesType sorted = ipp.GetFilenames();
vtkStringArray files = new vtkStringArray();
long nfiles = sorted.size();
//for( String f : sorted )
for (int i = 0; i < nfiles; i++) {
String f = sorted.get(i);
files.InsertNextValue( f );
}
vtkGDCMImageReader reader = new vtkGDCMImageReader();
reader.SetFileNames( files );
reader.Update(); // get spacing value
double[] spacing = reader.GetOutput().GetSpacing();
vtkImageChangeInformation change = new vtkImageChangeInformation();
change.SetInputConnection( reader.GetOutputPort() );
change.SetOutputSpacing( spacing[0], spacing[1], ippzspacing );
change.Update();
System.out.println( change.GetOutput().toString() );
vtkRenderer ren1 = new vtkRenderer();
ren1.SetViewport(0., 0., 0.333, 1);
ren1.SetBackground(0.1,0.2,0.4);
vtkRenderer ren2 = new vtkRenderer();
ren2.SetViewport(0.333, 0., 0.667, 1);
ren2.SetBackground(0.1,0.2,0.4);
vtkRenderer ren3 = new vtkRenderer();
ren3.SetViewport(0.667, 0., 1., 1.);
ren3.SetBackground(0.1,0.2,0.4);
vtkRenderWindow renWin = new vtkRenderWindow();
renWin.AddRenderer(ren1);
renWin.AddRenderer(ren2);
renWin.AddRenderer(ren3);
vtkRenderWindowInteractor iren = new vtkRenderWindowInteractor();
iren.SetRenderWindow(renWin);
vtkInteractorStyleImage style = new vtkInteractorStyleImage();
iren.SetInteractorStyle( style );
vtkCellPicker picker = new vtkCellPicker();
picker.SetTolerance(0.005);
vtkProperty ipwProp = new vtkProperty();
//vtkImagePlaneWidget planeWidgetX = new vtkImagePlaneWidget();
planeWidgetX.SetInteractor(iren);
planeWidgetX.SetCurrentRenderer(ren1);
planeWidgetX.SetDefaultRenderer(ren1);
planeWidgetX.RestrictPlaneToVolumeOn();
planeWidgetX.SetTexturePlaneProperty(ipwProp);
//planeWidgetX.GetPlaneProperty().SetColor(1,0,0);
//planeWidgetX.TextureInterpolateOff();
//planeWidgetX.SetResliceInterpolateToNearestNeighbour();
planeWidgetX.SetInput(change.GetOutput());
planeWidgetX.SetPlaneOrientationToXAxes();
planeWidgetX.SetSliceIndex(62);
planeWidgetX.SetPicker(picker);
planeWidgetX.SetKeyPressActivationValue('x');
planeWidgetX.On();
planeWidgetX.InteractionOn();
//vtkImagePlaneWidget planeWidgetY = new vtkImagePlaneWidget();
planeWidgetY.SetInteractor(iren);
planeWidgetY.SetCurrentRenderer(ren2);
planeWidgetY.SetDefaultRenderer(ren2);
planeWidgetY.RestrictPlaneToVolumeOn();
planeWidgetY.SetTexturePlaneProperty(ipwProp);
//planeWidgetY.GetPlaneProperty().SetColor(1,0,0);
//planeWidgetY.TextureInterpolateOff();
//planeWidgetY.SetResliceInterpolateToNearestNeighbour();
planeWidgetY.SetInput(change.GetOutput());
planeWidgetY.SetLookupTable( planeWidgetX.GetLookupTable() );
planeWidgetY.SetPlaneOrientationToYAxes();
planeWidgetY.SetSliceIndex(32);
planeWidgetY.SetPicker(picker);
planeWidgetY.SetKeyPressActivationValue('y');
planeWidgetY.On();
//vtkImagePlaneWidget planeWidgetZ = new vtkImagePlaneWidget();
planeWidgetZ.SetInteractor(iren);
planeWidgetZ.SetCurrentRenderer(ren3);
planeWidgetZ.SetDefaultRenderer(ren3);
planeWidgetZ.RestrictPlaneToVolumeOn();
planeWidgetZ.SetTexturePlaneProperty(ipwProp);
//planeWidgetZ.GetPlaneProperty().SetColor(1,0,0);
//planeWidgetZ.TextureInterpolateOff();
//planeWidgetZ.SetResliceInterpolateToNearestNeighbour();
planeWidgetZ.SetInput(change.GetOutput());
planeWidgetZ.SetLookupTable( planeWidgetX.GetLookupTable() );
planeWidgetZ.SetPlaneOrientationToZAxes();
planeWidgetZ.SetSliceIndex(32);
planeWidgetZ.SetPicker(picker);
planeWidgetZ.SetKeyPressActivationValue('z');
planeWidgetZ.On();
iren.Initialize();
renWin.Render();
AlignCamera(52, planeWidgetX);
AlignCamera(32, planeWidgetY);
AlignCamera(32, planeWidgetZ);
planeWidgetX.GetCurrentRenderer().ResetCamera();
planeWidgetY.GetCurrentRenderer().ResetCamera();
planeWidgetZ.GetCurrentRenderer().ResetCamera();
renWin.Render();
planeWidgetX.AddObserver("StartInteractionEvent", this,"startinterX");
planeWidgetX.AddObserver("InteractionEvent", this,"interX");
planeWidgetX.AddObserver("EndInteractionEvent", this,"endinterX");
planeWidgetY.AddObserver("StartInteractionEvent", this,"startinterY");
planeWidgetY.AddObserver("InteractionEvent", this,"interY");
planeWidgetY.AddObserver("EndInteractionEvent", this,"endinterY");
planeWidgetZ.AddObserver("StartInteractionEvent", this,"startinterZ");
planeWidgetZ.AddObserver("InteractionEvent", this,"interZ");
planeWidgetZ.AddObserver("EndInteractionEvent", this,"endinterZ");
iren.AddObserver("ConfigureEvent", this,"config");
iren.Start();
}
public static void main(String[] args) throws Exception
{
String dirname = args[0];
if( !PosixEmulation.FileIsDirectory( dirname ) )
{
return;
}
MPRViewer2 me = new MPRViewer2();
me.Run( dirname );
}
}