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如何在JavaFX应用程序中嵌入Canvas3D?

java-3d javafx-8 javafx swing java

1

DPM · 技术社区 · 7 年前

我正在开发一个JavaFX桌面应用程序。我想在其中显示一些java 3D对象。

据我所知,实现这一点的方法是使用JavaFX的SwingNode。Java 3d也必须集成在Swing组件中。所以这是一个两步过程。

将Java 3D对象与Java Swing集成

import java.awt.BorderLayout;

import javax.swing.JFrame;

public class JFrameWithCanvas3D extends JFrame {
   public JFrameWithCanvas3D() {
      super("Swing JFrame Wraps Canvas3D");
      setLayout(new BorderLayout());

      BallPanel panel = new BallPanel();
      add(panel, BorderLayout.CENTER);
      setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      pack();
      setVisible(true);
   }

   public static void main(String[] args) {
      System.setProperty("sun.awt.noerasebackground", "true");
      javax.swing.SwingUtilities.invokeLater(new Runnable() {
         @SuppressWarnings("unused")
         @Override
         public void run() {
            new JFrameWithCanvas3D();
         }
      });
   }  
}

public class BallPanel extends JPanel {

   public BallPanel() {
      setLayout(new BorderLayout());
      setPreferredSize(new Dimension(500, 500));
      add(makeCanvas());

   }

   private static Canvas3D makeCanvas() {
      BranchGroup group = new BranchGroup();
      group.addChild(makeLight());
      group.addChild(new Sphere(5));

      Canvas3D canvas3D = new Canvas3D(SimpleUniverse.getPreferredConfiguration());
      SimpleUniverse universe = new SimpleUniverse(canvas3D);
      Transform3D viewTransform = new Transform3D();
      viewTransform.setTranslation(new Vector3d(0, 0, 20)); //move "back" a little
      universe.getViewingPlatform().getViewPlatformTransform().setTransform(viewTransform);
      universe.addBranchGraph(group);
      return canvas3D;
   }

   private static DirectionalLight makeLight() {
      DirectionalLight light = new DirectionalLight(new Color3f(Color.WHITE), new Vector3f(-1.0f, -1.0f, -1.0f));
      light.setInfluencingBounds(new BoundingSphere(new Point3d(0, 0, 0), 100));
      return light;
   }

}

在JavaFX应用程序中集成BallPanel

public class FXAppWithSwingPanel extends Application {
   @Override
   public void start(Stage stage) {
       final SwingNode swingNode = new SwingNode();

       JPanel panel = new JPanel();       
       panel.setLayout(new BorderLayout());
       panel.setPreferredSize(new Dimension(450, 450));
       panel.add(new BallPanel(), BorderLayout.CENTER);
       swingNode.setContent(panel);

       Pane pane = new Pane();
       pane.getChildren().add(swingNode);

       stage.setScene(new Scene(pane, 500, 500));
       stage.show();
   }

   public static void main(String[] args) {
       launch(args);
   }

}

我看到的只是一个灰色背景,球体应该在那里。我尝试了几种不同的变体,但没有成功。在网上找不到关于Java 3D类和JavaFX之间这种特殊集成的任何信息。

我知道JavaFX有3D图形,但我一点也不喜欢。

2 回复 | 直到 7 年前

1

DPM 7 年前

我最终使用JCanvas3D实现了它。这项建议归功于@gouessej。非常感谢。

这是新的 makeCanvas

   private void makeCanvas() {
      GraphicsConfigTemplate3D gCT = new GraphicsConfigTemplate3D();
      JCanvas3D jCanvas3D = new JCanvas3D(gCT);
      Dimension canvasDim = new Dimension(400, 400);
      jCanvas3D.setPreferredSize(canvasDim);
      jCanvas3D.setSize(canvasDim);
      add(jCanvas3D, BorderLayout.CENTER);          
      Canvas3D canvas3D =  jCanvas3D.getOffscreenCanvas3D(); 

      View view = new View();
      view.setPhysicalBody(new PhysicalBody());
      view.setPhysicalEnvironment(new PhysicalEnvironment());
      view.addCanvas3D(canvas3D);

      ViewPlatform vp = new ViewPlatform();
      view.attachViewPlatform(vp);


      Transform3D viewTransform = new Transform3D();
      viewTransform.setTranslation(new Vector3d(0, 0, 20)); //move "back" a little

      TransformGroup viewTG = new TransformGroup();
      viewTG.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
      viewTG.setTransform(viewTransform);

      viewTG.addChild(vp);


      viewTG.addChild(makeLight());
      viewTG.addChild(new Sphere(5));

      BranchGroup group = new BranchGroup();
      group.addChild(viewTG);
      group.addChild(makeLight());
      group.addChild(new Sphere(5));

      VirtualUniverse vu = new VirtualUniverse();
      Locale locale = new Locale(vu);  
      locale.addBranchGraph(group);
   }

Canvas3D 由于无法在 JavaFX SwingNode 因为它是一个重量级组件。

这个 SwingNode javadoc

2

0

mipa 7 年前

我只是看到你说你知道JavaFX 3D图形,但你不喜欢它。你能更具体一点说你不喜欢什么吗?