annotate examples/java3d/hello8.java @ 8:5e3cbbf173aa tip

Reorganise some more

/*
		hello8.java

		Construct universe without using SimpleUniverse 
		utility class - this puts together the view
		group explicitly.

		Stereo pairs using 2 views in one window
 */

import samer.core.*;
import java.awt.event.*;
import java.awt.*;
import javax.media.j3d.*;
import javax.vecmath.*;

public class hello8 extends util implements Agent
{
	// create universe
	LocalUniverse	U=new LocalUniverse();
	BranchGroup		root=new BranchGroup();
	ViewPlatform	VP=new ViewPlatform();
	
	public static void main(String[] arse) { init(); new hello8(); }

	public hello8()
	{		
		// create scene
		root.addChild(createSceneGraph());
		// addBackground(root,new Background(0.1f,0.2f,0.15f));
		// addLights(root);

		{ // view platform placement			
			TransformGroup	VT=new TransformGroup();
			Transform3D		t=new Transform3D();

			t.lookAt(new Point3d(0,16,20), new Point3d(0,0,0),new Vector3d(0,1,0));
			t.invert();
			VT.setTransform(t);

			// !!! all key navigators seem to be slaved!			
			addKeyNavigator(VT,readwrite(VT));
			VT.addChild(VP);
			root.addChild(VT);
		}
		// setCapability(ALLOW_DETACH);
		// setCapability(ALLOW_CHILDREN_WRITE);
		// compile();


		// add two  Views on same platform
		new stereoview(VP);

		// root.setCapability(Group.ALLOW_CHILDREN_EXTEND);
		// root.setCapability(Group.ALLOW_CHILDREN_WRITE);
		root.compile();
		
		U.addGroup(root);

		Shell.registerAgent(this);
		Shell.exposeCommands(this);
	}

	public void getCommands(Agent.Registry r) { 
		r.add("view");
		r.setTarget(null); r.add("start").add("stop"); 
	}

	public void execute(String cmd, Environment env) throws Exception
	{
		if (cmd.equals("view")) new stereoview(VP); 
	}

	private static TransformGroup createSceneGraph()
	{
		Transform3D		r=new Transform3D();
		// r.rotX(Math.PI/2);
		// r.setScale(0.5);
		TransformGroup  t2=new TransformGroup(r);
		t2.addChild(yoyoGroup());

		TransformGroup	tg = new TransformGroup();
		addRotator(tg);
		tg.addChild(t2);
		return tg;
	}

	class stereoview  implements Agent 
	{
		eyeview			left,right;
		Shell.Window	win;


		public stereoview(ViewPlatform VP)
		{
			left=new eyeview(VP);
			right=new eyeview(VP);

			left.setMonoscopicViewPolicy(View.LEFT_EYE_VIEW);
			right.setMonoscopicViewPolicy(View.RIGHT_EYE_VIEW);

			win=Shell.getWindow("stereo");
			win.container().setLayout(new GridLayout(1,2));
			win.container().add(right.canvas);
			win.container().add(left.canvas);
			win.expose();
			win.addWindowListener(new WindowAdapter() {
				public void windowClosing(WindowEvent e) { dispose(); }	
			});

			Shell.registerAgent(this);
		}

		public void dispose() 
		{
			Shell.deregisterAgent(this);
			win.dispose(); 
		}						

		protected void finalize() { Shell.trace("finalizing view "+this); }

		public void getCommands(Agent.Registry r) { r.add("start").add("stop"); }
		public void execute(String cmd, Environment env) {
			if (cmd.equals("start")) { left.startView(); right.startView(); }
			else if (cmd.equals("stop")) { left.stopView(); right.stopView(); }
		}
	}

	public class eyeview extends View
	{
		Canvas3D		canvas;

		public eyeview(ViewPlatform VP)
		{
 			// create view bits
			canvas=new Canvas3D(getGraphicsConfiguration());

			addCanvas3D(canvas);
			setPhysicalBody(new PhysicalBody());
			setPhysicalEnvironment(new PhysicalEnvironment());
			setWindowEyepointPolicy(View.RELATIVE_TO_WINDOW);
			// setWindowResizePolicy(View.VIRTUAL_WORLD);
			// setWindowMovementPolicy(View.VIRTUAL_WORLD);
			setFrontClipDistance(0.1);
			setBackClipDistance(20);
			attachViewPlatform(VP);
		}
 	}
}