/* Auteur: Nicolas JANEY         */
/* nicolas.janey@univ-fcomte.fr  */
/* Novembre 2001                 */

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

public class SimplePolyLines extends Applet implements ActionListener {

  private Button b = new Button("        Points        ");
  private int aff = 0 ;
  private String [] mess = new String[7]; 
  private PointArray pa;
  private LineArray la;
  private TriangleArray ta;
  private QuadArray qa;
  private Shape3D shape;
  private LineStripArray lsa;
  private TriangleStripArray tsa;
  private TriangleFanArray tfa;

  public BranchGroup createSceneGraph(SimpleUniverse u) {
    BranchGroup objRoot = new BranchGroup();
    BoundingSphere bounds;
    bounds = new BoundingSphere(new Point3d(0.0,0.0,0.0),100.0);
    { TransformGroup objTrans1 = new TransformGroup();
      objRoot.addChild(objTrans1);
      objTrans1.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
      objTrans1.setCapability( TransformGroup.ALLOW_TRANSFORM_READ );
      objTrans1.setCapability(TransformGroup.ENABLE_PICK_REPORTING);
      MouseRotate behavior = new MouseRotate(objTrans1);
      objTrans1.addChild(behavior);
      behavior.setSchedulingBounds(bounds);
      Appearance a = new Appearance();
      PolygonAttributes attr = new PolygonAttributes();
      attr.setCullFace(PolygonAttributes.CULL_NONE);
      a.setPolygonAttributes(attr);
      shape = new Shape3D(pa,a);
      shape.setCapability(Shape3D.ALLOW_GEOMETRY_WRITE);
      TransformGroup objTrans2 = new TransformGroup();
      objTrans1.addChild(objTrans2);
      Transform3D t3D = new Transform3D();
      t3D.setRotation(new AxisAngle4d(1.0,1.0,0.0,Math.PI/5.0)) ;
      objTrans2.setTransform(t3D);
      objTrans2.addChild(shape); }
    objRoot.compile();
    return objRoot;
    }

  public SimplePolyLines() {
    Point3d [] pts = new Point3d[8];
    pts[0] = new Point3d(0.0,0.0,-0.1);
    pts[1] = new Point3d(0.5,0.2,-0.3);
    pts[2] = new Point3d(-0.2,0.6,-0.4);
    pts[3] = new Point3d(0.3,0.7,0.5);
    pts[4] = new Point3d(-0.4,-0.5,0.1);
    pts[5] = new Point3d(0.3,-0.6,0.6);
    pts[6] = new Point3d(-0.5,0.2,-0.2);
    pts[7] = new Point3d(-0.4,0.7,0.2);
    Point3d [] pts2 = new Point3d[6];
    pts2[0] = new Point3d(0.0,0.0,-0.1);
    pts2[1] = new Point3d(0.5,0.2,-0.3);
    pts2[2] = new Point3d(-0.2,0.6,-0.4);
    pts2[3] = new Point3d(0.3,0.7,0.5);
    pts2[4] = new Point3d(-0.4,-0.5,0.1);
    pts2[5] = new Point3d(0.3,-0.6,0.6);
    Color3f [] couls = new Color3f[8];
    couls[0] = new Color3f(0.0f,0.0f,1.0f);
    couls[1] = new Color3f(1.0f,0.0f,0.0f);
    couls[2] = new Color3f(0.0f,1.0f,0.0f);
    couls[3] = new Color3f(1.0f,0.0f,1.0f);
    couls[4] = new Color3f(1.0f,1.0f,0.0f);
    couls[5] = new Color3f(1.0f,1.0f,1.0f);
    couls[6] = new Color3f(1.0f,0.0f,1.0f);
    couls[7] = new Color3f(1.0f,0.0f,0.0f);
    Color3f [] couls2 = new Color3f[6];
    couls2[0] = new Color3f(0.0f,0.0f,1.0f);
    couls2[1] = new Color3f(1.0f,0.0f,0.0f);
    couls2[2] = new Color3f(0.0f,1.0f,0.0f);
    couls2[3] = new Color3f(1.0f,0.0f,1.0f);
    couls2[4] = new Color3f(1.0f,1.0f,0.0f);
    couls2[5] = new Color3f(1.0f,1.0f,1.0f);
    pa = new PointArray(8,PointArray.COORDINATES|PointArray.COLOR_3);
    pa.setCoordinates(0,pts);
    pa.setColors(0,couls);
    la = new LineArray(8,LineArray.COORDINATES|LineArray.COLOR_3);
    la.setCoordinates(0,pts);
    la.setColors(0,couls);
    ta = new TriangleArray(6,TriangleArray.COORDINATES|TriangleArray.COLOR_3);
    ta.setCoordinates(0,pts2);
    ta.setColors(0,couls2);
    qa = new QuadArray(8,QuadArray.COORDINATES|QuadArray.COLOR_3);
    qa.setCoordinates(0,pts);
    qa.setColors(0,couls);
    int count[] = new int[1];
    count[0] = 8;
    lsa = new LineStripArray(8,LineStripArray.COORDINATES|LineStripArray.COLOR_3,count);
    lsa.setCoordinates(0,pts);
    lsa.setColors(0,couls);
    tsa = new TriangleStripArray(8,TriangleStripArray.COORDINATES|TriangleStripArray.COLOR_3,count);
    tsa.setCoordinates(0,pts);
    tsa.setColors(0,couls);
    tfa = new TriangleFanArray(8,TriangleFanArray.COORDINATES|TriangleFanArray.COLOR_3,count);
    tfa.setCoordinates(0,pts);
    tfa.setColors(0,couls);
    mess[0]="        Points        ";
    mess[1]="      Segments        ";
    mess[2]="      Triangles       ";
    mess[3]="        Quads         ";
    mess[4]="   Ligne polygonale   ";
    mess[5]="     Triangle fan     ";
    mess[6]="    Triangle strip    ";
    setLayout(new BorderLayout());
    GraphicsConfiguration config;
    config = SimpleUniverse.getPreferredConfiguration();
    Canvas3D c = new Canvas3D(config);
    Container ct = new Container();
    ct.setLayout(new FlowLayout());
    b.addActionListener(this);
    add("Center",c);
    ct.add(b);
    add("South",ct);
    SimpleUniverse u = new SimpleUniverse(c);
    BranchGroup scene = createSceneGraph(u);
    u.getViewingPlatform().setNominalViewingTransform();
    u.addBranchGraph(scene);
    }

    public void actionPerformed(ActionEvent e) {
      if ( e.getSource() == b ) {
        aff = (aff+1)%7;
        switch ( aff ) {
          case 0: shape.setGeometry(pa);
                  break;
          case 1: shape.setGeometry(la);
                  break;
          case 2: shape.setGeometry(ta);
                  break;
          case 3: shape.setGeometry(qa);
                  break;
          case 4: shape.setGeometry(lsa);
                  break;
          case 5: shape.setGeometry(tfa);
                  break;
          case 6: shape.setGeometry(tsa);
                  break;}
        b.setLabel(mess[aff]);}
    }

  public static void main(String[] args) {
    new MainFrame(new SimplePolyLines(),250,250);
    }
  }