An Object : Object Model « 3D « Java

An Object

An Object
// From:

import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.Frame;
import java.awt.GraphicsConfiguration;

import javax.vecmath.Color3f;
import javax.vecmath.Point3f;

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

public class FarbWurfelAsQuads extends Applet {

   * init Methoden fur die Darstellung als Applet
  public void init() {
    setLayout(new BorderLayout());
    GraphicsConfiguration config = SimpleUniverse
    canvas3D = new Canvas3D(config);
    add("Center", canvas3D);
    BranchGroup szene = macheSzene();
    universe = new SimpleUniverse(canvas3D);

   * Erstellt den Szenegraphen
   * @return BranchGroup
  public BranchGroup macheSzene() {
    BranchGroup objWurzel = new BranchGroup();
    // Transformation, 2 Rotationen:
    Transform3D drehung = new Transform3D();
    Transform3D drehung2 = new Transform3D();
    drehung.rotX(Math.PI / 4.0d);
    drehung2.rotY(Math.PI / 5.0d);
    TransformGroup objDreh = new TransformGroup(drehung);
    Shape3D shape = new Shape3D(makeCube(), makeAppearance());

    return objWurzel;

   * Erstellung des ColorCube
   * @return
  private QuadArray makeCube() {
    QuadArray plane = new QuadArray(24, GeometryArray.COORDINATES
        | GeometryArray.COLOR_3);
    // Punkte und Farben
    Point3f pa = new Point3f(-1.0f, 1.0f, -1.0f);
    Point3f pb = new Point3f(-1.0f, -1.0f, -1.0f);
    Point3f pc = new Point3f(1.0f, -1.0f, -1.0f);
    Point3f pd = new Point3f(1.0f, 1.0f, -1.0f);
    Point3f pe = new Point3f(-1.0f, 1.0f, 1.0f);
    Point3f pf = new Point3f(-1.0f, -1.0f, 1.0f);
    Point3f pg = new Point3f(1.0f, -1.0f, 1.0f);
    Point3f ph = new Point3f(1.0f, 1.0f, 1.0f);
    // Coloreigenschaften
    Color3f red = new Color3f(1.0f, 0.0f, 0.0f);
    Color3f blue = new Color3f(0.0f, 0.0f, 1.0f);
    Color3f green = new Color3f(0.0f, 1.0f, 0.0f);
    Color3f cyan = new Color3f(0.0f, 1.0f, 1.0f);
    Color3f yellow = new Color3f(1.0f, 1.0f, 0.0f);
    Color3f magenta = new Color3f(1.0f, 0.0f, 1.0f);

    // 1. Seite
    plane.setCoordinate(0, pa);
    plane.setColor(0, red);
    plane.setCoordinate(1, pb);
    plane.setColor(1, red);
    plane.setCoordinate(2, pc);
    plane.setColor(2, red);
    plane.setCoordinate(3, pd);
    plane.setColor(3, red);
    // 2. Seite
    plane.setCoordinate(4, pe);
    plane.setColor(4, blue);
    plane.setCoordinate(5, pf);
    plane.setColor(5, blue);
    plane.setCoordinate(6, pg);
    plane.setColor(6, blue);
    plane.setCoordinate(7, ph);
    plane.setColor(7, blue);
    // 3. Seite
    plane.setCoordinate(8, pe);
    plane.setColor(8, green);
    plane.setCoordinate(9, pf);
    plane.setColor(9, green);
    plane.setCoordinate(10, pb);
    plane.setColor(10, green);
    plane.setCoordinate(11, pa);
    plane.setColor(11, green);
    // 4. Seite
    plane.setCoordinate(12, pd);
    plane.setColor(12, cyan);
    plane.setCoordinate(13, pc);
    plane.setColor(13, cyan);
    plane.setCoordinate(14, pg);
    plane.setColor(14, cyan);
    plane.setCoordinate(15, ph);
    plane.setColor(15, cyan);
    // 5. Seite
    plane.setCoordinate(16, pe);
    plane.setColor(16, yellow);
    plane.setCoordinate(17, pa);
    plane.setColor(17, yellow);
    plane.setCoordinate(18, pd);
    plane.setColor(18, yellow);
    plane.setCoordinate(19, ph);
    plane.setColor(19, yellow);
    // 6. Seite
    plane.setCoordinate(20, pf);
    plane.setColor(20, magenta);
    plane.setCoordinate(21, pb);
    plane.setColor(21, magenta);
    plane.setCoordinate(22, pc);
    plane.setColor(22, magenta);
    plane.setCoordinate(23, pg);
    plane.setColor(23, magenta);
    // ubergib den Wurfel
    return plane;

   * Wurfeldarstellung
   * @return Appearance
  private Appearance makeAppearance() {
    Appearance a = new Appearance();
    PolygonAttributes p = new PolygonAttributes();
    return a;

   * gibt speicher frei
  public void destroy() {

  public static void main(String[] args) {
    frame = new MainFrame(new FarbWurfelAsQuads(), 500, 500);
    frame.setTitle("ColorCube mittels Geometrieklassen");

  //---- Attribute -----------------------
  private SimpleUniverse universe;

  private Canvas3D canvas3D;

  private static Frame frame;


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