import java.awt.event.*;
import java.awt.*;
import java.net.*;

import javax.swing.event.*;
import javax.media.j3d.*;
import javax.vecmath.*;

import com.sun.j3d.utils.universe.*;
import com.sun.j3d.utils.image.*;
import com.sun.j3d.utils.geometry.*;
import com.sun.j3d.utils.behaviors.mouse.*;

public class Java3DWorld extends Canvas3D {

private Appearance appearance;
private Light ambientLight;
private Box shape;
private Color3f lightColor;
private Light directionalLight;
private Material material;
private SimpleUniverse simpleUniverse;
private TransformGroup transformGroup;
private String imageName;
private static final float x =  0.1f;
private static final float y =  0.2f;
private static final float z =  0.3f;



public Java3DWorld ( String imageFileName ) {
super( SimpleUniverse.getPreferredConfiguration() );
imageName=imageFileName;
simpleUniverse=new SimpleUniverse( this);
ViewingPlatform viewPlatform = simpleUniverse.getViewingPlatform();
viewPlatform.setNominalViewingTransform();
BranchGroup branchGroup = createScene();
simpleUniverse.addBranchGraph( branchGroup );
}

public BranchGroup createScene()
{
BranchGroup scene = new BranchGroup ();
transformGroup = new TransformGroup ();
transformGroup.setCapability(
TransformGroup.ALLOW_TRANSFORM_WRITE );
transformGroup.setCapability(
TransformGroup.ALLOW_TRANSFORM_READ );
scene.addChild( transformGroup );
BoundingSphere bounds = new BoundingSphere(
new Point3d( 0.0f, 0.0f, 0.0f ), 50.0 );


appearance=new Appearance();
material=new Material();
appearance.setMaterial( material );
String rgb = new String( "RGB" );



Box shape = new Box( x, y, z, Box.GENERATE_NORMALS | Box.GENERATE_TEXTURE_COORDS, appearance );



transformGroup.addChild( shape );
ambientLight = new AmbientLight();
ambientLight.setInfluencingBounds ( bounds );
directionalLight = new DirectionalLight ();
lightColor = new Color3f();
directionalLight.setColor( lightColor );
directionalLight.setCapability( DirectionalLight.ALLOW_DIRECTION_WRITE );
directionalLight.setCapability( DirectionalLight.ALLOW_DIRECTION_READ );
directionalLight.setCapability( DirectionalLight.ALLOW_COLOR_WRITE );
directionalLight.setCapability( DirectionalLight.ALLOW_COLOR_READ );
directionalLight.setInfluencingBounds( bounds );
scene.addChild( ambientLight );
scene.addChild( directionalLight );
MouseRotate rotateBehavior = new MouseRotate();


rotateBehavior.setTransformGroup( transformGroup );
rotateBehavior.setSchedulingBounds( bounds );
MouseTranslate translateBehavior = new MouseTranslate();
translateBehavior.setTransformGroup( transformGroup );
translateBehavior.setSchedulingBounds(
new BoundingBox( new Point3d( -1.0f, -1.0f, -1.0f ),
new Point3d( 1.0f, 1.0f, 1.0f ) ) );

MouseZoom scaleBehavior = new MouseZoom();
scaleBehavior.setTransformGroup( transformGroup );
scaleBehavior.setSchedulingBounds( bounds );
scene.addChild( scaleBehavior );
scene.addChild( rotateBehavior );
scene.addChild( translateBehavior );
scene.compile();
return scene;
}
public void changeColor( Color color )
{
lightColor.set( color );
directionalLight.setColor( lightColor );
}






public Dimension getPreferredSize()
{
return new Dimension( 500, 500 );
}
public Dimension getMinimumSize()
{
return getPreferredSize();
}

}