myswitch.java

java 3d 系列源码

//MySwitch.java
import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.event.*;
import java.awt.GraphicsConfiguration;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.geometry.*;
import com.sun.j3d.utils.universe.*;
import javax.media.j3d.*;
import javax.vecmath.*;
import com.sun.j3d.utils.behaviors.mouse.*;
import java.awt.GraphicsConfiguration;

public class MySwitch extends Applet {
  public Switch s;
  
  public BranchGroup createSceneGraph() {
    BranchGroup objRoot=new BranchGroup();
    Transform3D t0=new Transform3D();
    t0.rotX(0.3f);
    TransformGroup objTrans=new TransformGroup(t0);
    objRoot.addChild(objTrans);
    
    BoundingSphere bounds=new BoundingSphere(new Point3d(0.0,0.0,0.0),100.0);
    
    Appearance app=new Appearance();
    Material mat=new Material();
    mat.setDiffuseColor(new Color3f(1.0f,1.0f,0.0f));
    app.setMaterial(mat);
    
    Color3f bgColor=new Color3f(0.0f,0.0f,0.0f);
    Background bg=new Background(bgColor);
    bg.setApplicationBounds(bounds);
    objRoot.addChild(bg);
    
    Color3f DirectionalColor=new Color3f(1.f,1.f,1.f);
    Vector3f vec=new Vector3f(0.f,0.f,-1.0f);
    DirectionalLight directionalLight=new DirectionalLight(DirectionalColor,vec);
    directionalLight.setInfluencingBounds(bounds);
    objRoot.addChild(directionalLight);
    
    s=new Switch();
    s.setWhichChild(Switch.CHILD_ALL);
    s.setCapability(Switch.ALLOW_SWITCH_WRITE);
    
    
    Transform3D t1=new Transform3D();
    t1.setTranslation(new Vector3f(0.0f,0.3f,0.0f));
    TransformGroup gsphere=new TransformGroup(t1);
    gsphere.addChild(new Sphere(0.2f,app));
    
    Transform3D t2=new Transform3D();
    t2.setTranslation(new Vector3f(0.0f,0.0f,0.0f));
    TransformGroup gcone=new TransformGroup(t2);
    gcone.addChild(new Cone(0.3f,0.6f,1,app));
    
    TransformGroup trans=new TransformGroup();
    trans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    trans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
    objRoot.addChild(trans);
    
    
    s.addChild(gsphere);
    s.addChild(gcone);
        
    MouseRotate behavior = new MouseRotate();
    behavior.setTransformGroup(trans);
    objRoot.addChild(behavior);
    behavior.setSchedulingBounds(bounds);

    MouseZoom behavior2 = new MouseZoom();
    behavior2.setTransformGroup(trans);
    objRoot.addChild(behavior2);
    behavior2.setSchedulingBounds(bounds);

    MouseTranslate behavior3 = new MouseTranslate();
    behavior3.setTransformGroup(trans);
    objRoot.addChild(behavior3);
    behavior3.setSchedulingBounds(bounds);

    trans.addChild(s);	    
    
    switchBehavior b=new switchBehavior(s);
    b.setSchedulingBounds(bounds);
    objRoot.addChild(b);
    
    objRoot.compile();
    return objRoot;
  }
  
  public MySwitch() {
    setLayout(new BorderLayout());
    GraphicsConfiguration config = 
               SimpleUniverse.getPreferredConfiguration();
    Canvas3D c=new Canvas3D(config);
    add("Center",c);
    BranchGroup scene=createSceneGraph();
    SimpleUniverse u=new SimpleUniverse(c);
    u.getViewingPlatform().setNominalViewingTransform();
    u.addBranchGraph(scene);
  }
  
  public static void main(String[] args) {
    new MainFrame(new MySwitch(),200,200);
  }
}//end of MySwitch.java