Hi Renoir:
That is another great help. Thank you!
When I run the program you give me, I found that if I start the program and
press the escape key to quit, it did not work (This might be why I could not
get it working before). To quit I have to use the mouse to rotate the image
once. This means that I have to evoke the MouseRotate behavior at least
once before I can successfully quit the program. Can I avoid that? What I
mean is just simply quit by pressing escape key without touching mouse?
Thank you! I have a box of beer for you, if you visit Brisbane.
Guang Bin Liu
VTHRC
Univ. of Queensland
St Lucia 4072
Brisbane, Australia
>import java.awt.*;
>import java.awt.event.*;
>import javax.swing.*;
>import javax.media.j3d.*;
>import javax.vecmath.*;
>
>public class EyeWindow extends JWindow
>{
> BorderLayout borderLayout1 = new BorderLayout();
>
> /**
> @param set to {@link EyeWindow#RIGHT_EYE} or {@link
>EyeWindow#LEFT_EYE}
> */
> public EyeWindow( final int eyeSide, final Group group )
> {
> enableEvents(AWTEvent.WINDOW_EVENT_MASK);
> try
> {
> itsEyeSide = eyeSide;
> jbInit();
>
> // both windows + blank interval must fill the screen
> Dimension screenSize = Toolkit . getDefaultToolkit() .
>getScreenSize( );
> int height = ( screenSize . height / 2 ) - ( BLANK_INTERVAL / 2
>);
> this.setSize(new Dimension( screenSize . width, height ) );
> // set window on top half or bottom half of screen depending
>which
> // eye view it will show
> // if you don't see a steroscopic effect, it is possible that you
>have
> // to swap the position of the window for each eye ( top ->
>bottom and
> // vice versa)
> // another good thing would be to fill the blank interal with the
>same
> // color as the background to avoid stripes on the screen when
>the
> // monitor beam is reseted but the image buffer is still read
> if( eyeSide == LEFT_EYE )
> {
> this . setLocation( 0, height + BLANK_INTERVAL );
> }
> else
> {
> this . setLocation( 0, 0 );
> }
>
> graphicsInit( group );
>
> setVisible( true );
> }
> catch(Exception e)
> {
> e.printStackTrace();
> }
> }
>
> //Init (generated by JBuilder)
> private void jbInit() throws Exception
> {
> this.getContentPane().setLayout(borderLayout1);
> this.addKeyListener(new java.awt.event.KeyAdapter()
> {
> public void keyTyped(KeyEvent e)
> {
> this_keyTyped(e);
> }
> });
> }
>
> private void
> graphicsInit( final Group group )
> {
> final GraphicsEnvironment theEnvironment =
> GraphicsEnvironment . getLocalGraphicsEnvironment( );
> final GraphicsConfiguration[] configs =
> theEnvironment . getDefaultScreenDevice( ) . getConfigurations(
>);
> final GraphicsConfigTemplate3D configTemplate =
> new GraphicsConfigTemplate3D( );
> final GraphicsConfiguration usedConfig =
> configTemplate . getBestConfiguration( configs );
> itsCanvas3D = new Canvas3D( usedConfig );
> getContentPane( ) . add( itsCanvas3D );
>
> itsCanvas3D.addKeyListener(new java.awt.event.KeyAdapter()
> {
> public void keyPressed(KeyEvent e)
> {
> if (e.getKeyCode() == KeyEvent.VK_ESCAPE) System.exit(0);
> }
> }
> );
>
> // seems not to work in compatibility mode
> // does it work if compatibility mode is off ? (Haven't tried it
>yet)
>/* if( itsEyeSide == RIGHT_EYE )
> {
> itsCanvas3D . setMonoscopicViewPolicy( View.RIGHT_EYE_VIEW );
> }
> else
> {
> itsCanvas3D .setMonoscopicViewPolicy( View.LEFT_EYE_VIEW );
> }
>*/
>
> final ViewPlatform viewPlatform = new ViewPlatform( );
> group . addChild( viewPlatform );
>
> itsView . setCompatibilityModeEnable( true );
> itsView . setProjectionPolicy( View .PERSPECTIVE_PROJECTION );
> itsView . setPhysicalBody( new PhysicalBody( ) );
> itsView . setPhysicalEnvironment( new PhysicalEnvironment( ) );
> itsView . addCanvas3D( itsCanvas3D );
> itsView . attachViewPlatform( viewPlatform );
> setCameraPosition( );
>
> // set viewing frustum
> Transform3D cameraView = new Transform3D( );
> // frustum takes parameters top, bottom, left, right
> // relation of ( top - bottom ) : (right - left ) should equal
> // ( 2 * height ) : width of Canvas3D to avoid distortions
> // why 2 * height: picture will be stretched when turning
>sterographic
> // mode on; (not realized here)
> cameraView . frustum( -0.45, 0.45, -0.45, 0.45, 1.0, 50.0 );
> itsView . setLeftProjection( cameraView );
> itsView . setRightProjection( cameraView );
> }
>
> private void
> setCameraPosition( )
> {
> // position camera
> // use < > keys to change paralax
> Transform3D cameraPosition = new Transform3D( );
> if( itsEyeSide == RIGHT_EYE )
> {
> cameraPosition . lookAt
> (
> new Point3d( itsParalax, 0, DISTANCE_TO_EYE_FOCUS )
> , new Point3d( 0.0, 0.0, 0.0 )
> , new Vector3d( 0.0, 1.0, 0.0 )
> );
> }
> else
> {
> cameraPosition . lookAt
> (
> new Point3d( -itsParalax, 0, DISTANCE_TO_EYE_FOCUS )
> , new Point3d( 0.0, 0.0, 0.0 )
> , new Vector3d( 0.0, 1.0, 0.0 )
> );
> }
>
> itsView . setVpcToEc( cameraPosition );
> }
>
> protected void processWindowEvent(WindowEvent e)
> {
> super.processWindowEvent(e);
> if(e.getID() == WindowEvent.WINDOW_CLOSING)
> {
> System.exit(0);
> }
> }
>
> /**
> use < > keys to change paralax
> */
> void this_keyTyped(KeyEvent e)
> {
> if( e .getKeyChar() == '<' )
> {
> itsParalax += 0.01;
> }
> else if( e .getKeyChar() == '>' )
> {
> itsParalax = ( itsParalax > 0.01 ) ? ( itsParalax - 0.01 ) :
>itsParalax;
> }
> setCameraPosition( );
> }
>
> Canvas3D itsCanvas3D = null;
>
> public static final int RIGHT_EYE = 0;
> public static final int LEFT_EYE = 1;
>
> /**
> change this constant until the 2 windows appear as one in stereo
>mode
> viewing
> depends on screen resolution and frequency
> real applications should enable the user to set this value
>interactively
> */
> private static final int BLANK_INTERVAL = 44;
>
> private static final double DISTANCE_TO_EYE_FOCUS = 20.0;
>
> private double itsParalax = 0.3;
> private int itsEyeSide = RIGHT_EYE;
>
> final View itsView = new View( );
>}
>//Titel: Stereo Test
>//Version:
>//Copyright: Copyright (c) 1999
>//Autor: Dipl. Ing. P. Szawlowski
>//Organisation: IMC, Universität Wien
>
>import javax.swing.UIManager;
>import java.awt.*;
>import javax.media.j3d.*;
>import javax.vecmath.*;
>import com.sun.j3d.utils.geometry.Sphere;
>import com.sun.j3d.utils.geometry.ColorCube;
>import com.sun.j3d.utils.behaviors.mouse.*;
>
>public class StereoTestMain
>{
> boolean packFrame = false;
>
> public StereoTestMain()
> {
> // viewpoint can be rotated with mouse ( hold left button and move )
> graphicsInit( );
> // instead of using two windows one could put 2 Canvas3D in one
>window.
> // But the 2 Canvases must be vertically symetrical in relation to
>the the
> // screen middle
> EyeWindow rightEye = new EyeWindow( EyeWindow.RIGHT_EYE,
>itsViewRotator );
> EyeWindow leftEye = new EyeWindow( EyeWindow.LEFT_EYE,
>itsViewRotator );
> itsCameraBranchGroup . compile( );
> itsLocale . addBranchGraph( itsCameraBranchGroup );
> }
>
> public static void main( String[ ] args )
> {
> try
> {
> UIManager.setLookAndFeel( UIManager .
>getSystemLookAndFeelClassName( ) );
> }
> catch( Exception e )
> {
> }
> new StereoTestMain( );
> }
>
> private void
> graphicsInit( )
> {
> // bounding sphere for animation and interactivity
> final BoundingSphere bounds =
> new BoundingSphere( new Point3d(0.0,0.0,0.0), 100.0 );
>
> // some stuff to allow rotation of the viewpoint
> itsViewRotator .setCapability( TransformGroup .
>ALLOW_TRANSFORM_WRITE );
> itsViewRotator .setCapability( TransformGroup . ALLOW_TRANSFORM_READ
>);
> itsCameraBranchGroup .addChild( itsViewRotator );
>
> MouseRotate rotBehavior = new MouseRotate( itsViewRotator );
> rotBehavior . setSchedulingBounds( bounds );
> itsCameraBranchGroup . addChild( rotBehavior );
>
> // objects in scene
> Alpha upDownAlpha = new Alpha
> (
> -1
> , Alpha . DECREASING_ENABLE | Alpha . INCREASING_ENABLE
> , 0
> , 0
> , 5000
> , 0
> , 0
> , 5000
> , 0
> , 0
> );
>
> TransformGroup pulsatingTransformGroup = new TransformGroup( );
> pulsatingTransformGroup . setCapability( TransformGroup .
>ALLOW_TRANSFORM_WRITE );
>// pulsatingTransformGroup . setCapability( TransformGroup .
>ALLOW_TRANSFORM_WRITE );
> ScaleInterpolator scaleSource = new ScaleInterpolator
> (
> upDownAlpha
> , pulsatingTransformGroup
> , new Transform3D( )
> , 1.0f
> , 2.0f
> );
> scaleSource . setSchedulingBounds( bounds );
> pulsatingTransformGroup . addChild( new ColorCube( 0.5f ) );
>
> Transform3D translation1 = new Transform3D( );
> translation1 . setRotation( new AxisAngle4d( 1, 1, 0, 3.14 / 2 ) );
> translation1 . setTranslation( new Vector3d( 0.0, 0.0, 3.0 ) );
> TransformGroup orbitTransformGroup1 = new TransformGroup(
>translation1 );
> orbitTransformGroup1 . addChild( new ColorCube( 0.5f ) );
>
> Transform3D translation2 = new Transform3D( );
> translation2 . setRotation( new AxisAngle4d( 0, 1, 1, 3.14 ) );
> translation2 . setTranslation( new Vector3d( 0.0, 1.0, 5.0 ) );
> TransformGroup orbitTransformGroup2 = new TransformGroup(
>translation2 );
> orbitTransformGroup2 . addChild( new ColorCube( 0.5f ) );
>
> Transform3D translation3 = new Transform3D( );
> translation3 . setRotation( new AxisAngle4d( 1, 0, 1, 3.14 / 3 ) );
> translation3 . setTranslation( new Vector3d( 0.2, 0.0, 7.0 ) );
> TransformGroup orbitTransformGroup3 = new TransformGroup(
>translation3 );
> orbitTransformGroup3 . addChild( new ColorCube( 0.5f ) );
>
> TransformGroup rotatingTransformGroup = new TransformGroup( );
> rotatingTransformGroup .setCapability( TransformGroup .
>ALLOW_TRANSFORM_WRITE );
>// rotatingTransformGroup .setCapability( TransformGroup .
>ALLOW_TRANSFORM_READ );
> Alpha rotAlpha = new Alpha( -1, 5000 );
> RotationInterpolator rotationSource =
> new RotationInterpolator( rotAlpha, rotatingTransformGroup );
> rotationSource . setSchedulingBounds( bounds );
> rotatingTransformGroup .addChild( orbitTransformGroup3 );
>
> itsRootBranchGroup . addChild( orbitTransformGroup2 );
> itsRootBranchGroup . addChild( orbitTransformGroup1 );
> itsRootBranchGroup . addChild( pulsatingTransformGroup );
> itsRootBranchGroup . addChild( rotatingTransformGroup );
> itsRootBranchGroup . addChild( rotationSource );
> itsRootBranchGroup . addChild( scaleSource );
>
> itsRootBranchGroup . compile( );
> itsLocale . addBranchGraph( itsRootBranchGroup );
> }
>
> private final Locale itsLocale = new Locale( new
>VirtualUniverse( ) );
> private final BranchGroup itsCameraBranchGroup = new BranchGroup(
>);
> private final TransformGroup itsViewRotator = new TransformGroup( );
> private final BranchGroup itsRootBranchGroup = new BranchGroup( );
>}
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Hi Liu,
I've attached the correctly working files, add package declarations at the top.
I did the following in EyeWindow.java:
- Changed JFrame to JWindow.
- I removed the setDefaultCloseOperation as this is not available for JWindow
- I added a KeyListener to the itCanvas3D object and overrode the keyPressed method.
Regards,
Renoir
--
Renoir Sewjee
Software Engineer
ISS International (Welkom)
Tel: +27 (0)57 912 2702
Fax: +27 (0)57 912 2652
--
