//Vrml.java

import java.applet.Applet;

import java.awt.BorderLayout;

import com.sun.j3d.utils.applet.MainFrame;

import com.sun.j3d.utils.universe.*;

import javax.media.j3d.*;

import javax.vecmath.*;

import com.sun.j3d.loaders.Scene;

import com.sun.j3d.loaders.objectfile.ObjectFile;



public class Vrml extends Applet {

  public BranchGroup createSceneGraph()  {

 	  BranchGroup objRoot = new BranchGroup();

    TransformGroup objScale = new TransformGroup();

    Transform3D t3d = new Transform3D();

       t3d.setScale(0.8);

    objScale.setTransform(t3d);

    objRoot.addChild(objScale);



    BoundingSphere bounds = new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);

  

    Color3f lightColor = new Color3f(1.0f, 1.0f, 0.9f);

    Vector3f lightDirection  = new Vector3f(4.0f, -7.0f, -12.0f);

    DirectionalLight light = new DirectionalLight(lightColor, lightDirection);

       light.setInfluencingBounds(bounds);

    objRoot.addChild(light);



	  TransformGroup objTrans = new TransformGroup();

        objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);

	  objScale.addChild(objTrans);

     

    BranchGroup b = new  vrmlLoad("1.wrl");

    objTrans.addChild(b);	



    Transform3D yAxis = new Transform3D();

    Alpha rotationAlpha = new Alpha(-1, Alpha.INCREASING_ENABLE,

                  0, 0, 4000, 0, 0, 0, 0, 0);

    RotationInterpolator rotator = new RotationInterpolator(rotationAlpha, 

    	            objTrans, yAxis, 0.0f, (float) Math.PI*2.0f);

      

    rotator.setSchedulingBounds(bounds);

    objTrans.addChild(rotator);

    objRoot.compile();

	  return objRoot;

 }



 public Vrml(String args[]) {

   	setLayout(new BorderLayout());

	  Canvas3D c = new Canvas3D(null);

	  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 Vrml(args), 400,400);

 }

}

//end of Vrml.java