我最近在我的VTK Java程序中实现了剪辑。我使用BoxWidget来控制应该裁剪的内容。然而,我有一个问题与vtkRenderWindowInteractor附加到BoxWidget。程序在renderWindowInteractor.Start()
语句处冻结(我已经在我的代码中注释过了)。
这是我的重新模拟代码:
import java.awt.BorderLayout;
import java.awt.Dimension;
import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
import vtk.*;
public class VTKWindowInteractor extends JPanel {
static {
if (!vtkNativeLibrary.LoadAllNativeLibraries()) {
for (vtkNativeLibrary lib : vtkNativeLibrary.values()) {
if (!lib.IsLoaded()) {
System.out.println(lib.GetLibraryName() + " not loaded");
}
}
System.out.println("Make sure the search path is correct: ");
System.out.println(System.getProperty("java.library.path"));
}
vtkNativeLibrary.DisableOutputWindow(null);
}
private vtkPanel renWin;
private vtkRenderWindowInteractor renderWindowInteractor;
private vtkPolyDataMapper mapper;
private vtkActor coneActor;
private vtkPlanes planes;
private vtkBoxWidget boxWidget;
public VTKWindowInteractor() {
setLayout(new BorderLayout());
renWin = new vtkPanel();
add(renWin, BorderLayout.CENTER);
renWin.setMinimumSize(new Dimension(50, 50));
renWin.GetRenderer().SetBackground(0, 0, 0); // black
renWin.GetRenderWindow().AddRenderer(renWin.GetRenderer());
}
public void render() {
mapper = new vtkPolyDataMapper();
vtkConeSource cone = new vtkConeSource();
cone.SetHeight(3.0);
cone.SetRadius(1.0);
cone.SetResolution(10);
mapper.SetInputConnection(cone.GetOutputPort());
coneActor = new vtkActor();
coneActor.SetMapper(mapper);
renWin.GetRenderer().AddActor(coneActor);
planes = new vtkPlanes();
renderWindowInteractor = new vtkRenderWindowInteractor();
renderWindowInteractor.SetRenderWindow(renWin.GetRenderWindow());
boxWidget = new vtkBoxWidget();
boxWidget.SetInteractor(renderWindowInteractor);
boxWidget.SetPlaceFactor(1.25);
boxWidget.PlaceWidget(coneActor.GetBounds());
boxWidget.AddObserver("InteractionEvent", this, "executeClipping");
renderWindowInteractor.Initialize();
boxWidget.On();
renWin.Render();
renWin.resetCamera();
/**************************************/
// This is where the freeze come from //
// //
/************************************/
renderWindowInteractor.Start(); // if i comment out this line, the program works but the boxWidget cannot be resized or rescale or moved
}
public void executeClipping() {
planes = new vtkPlanes();
boxWidget.GetPlanes(planes);
mapper.SetClippingPlanes(planes);
planes.Delete();
}
public static final int WINDOW_WIDTH = 1000;
public static final int WINDOW_HEIGHT = 500;
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
VTKWindowInteractor _vtkRendererPanel = new VTKWindowInteractor();
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setTitle("......");
frame.setSize(WINDOW_WIDTH, WINDOW_HEIGHT);
frame.setVisible(true);
frame.setLayout(new BorderLayout());
frame.add(_vtkRendererPanel);
_vtkRendererPanel.render();
}
});
}
}
我一直在寻找我的错误数小时和沮丧,因此来这里寻求帮助。如果有人经历过这个或知道我做错了什么,请纠正我。谢谢! !
VTK version: 6.2.0
OK。我终于解决了这个问题。以下是vtkPanel.java
/**
* Java AWT组件,封装vtkRenderWindow, vtkRenderer, vtkCamera,
* vtkLight。
*
*如果需要vtkInteractor,请使用vtkCanvas代替。当
*使用Widget和Picker。
*
* @author Kitware */
所以我改变了
vtkPanel
vtkCanvas
和
renderWindowInteractor = new vtkRenderWindowInteractor();
renderWindowInteractor = renWin.getRenderWindowInteractor();
它解决了这个问题。
谢谢,这是给那些将来会遇到和我一样问题的人的