Here is the source Code!!
import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.event.*;
import java.awt.GraphicsConfiguration;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.geometry.Sphere;
import com.sun.j3d.utils.geometry.ColorCube;
import com.sun.j3d.utils.universe.*;
import javax.media.j3d.*;
import javax.vecmath.*;
import java.awt.Color.*;
public class Solarsistema extends Applet {
private SimpleUniverse u = null;
public BranchGroup createSceneGraph() {
//Objetos que definen el grafo de escena
//Raiz del grafo de escena
BranchGroup Raiz = new BranchGroup();
TransformGroup SunGroup = new TransformGroup();
TransformGroup EarthGroup = new TransformGroup();
TransformGroup PGroup = new TransformGroup();
TransformGroup KGroup = new TransformGroup();
TransformGroup MoonGroup = new TransformGroup();
TransformGroup TGroup = new TransformGroup();
//Capabilities
//Vector desplazamiento que situa al planeta respecto del sol.
Vector3f t_sol_earth = new Vector3f(0.3f, 0.0f, 0.0f);
//Vector desplazamiento que situa la luna respecto del palenta.
Vector3f t_earth_moon = new Vector3f(0.3f, 0.0f, 0.0f);
//Para escalar el grafo de escena (Todos los objetos)
double valor_escala = 0.9f;
Transform3D escala = new Transform3D();
escala.setScale(valor_escala);
//Ejes de Rotacion
//Matriz que define el eje X de Rotacion Levogira
float mX[]={0.0f, 1.0f, 0.0f,
-1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 1.0f};
//Matriz que define el eje Z de Rotacion Levogira
float mZ[]={1.0f, 0.0f, 0.0f,
0.0f,0.0f, 1.0f,
0.0f, -1.0f, 0.0f};
Transform3D yAxis = new Transform3D();
Transform3D xAxis = new Transform3D();
xAxis.setRotation(new Matrix3f(mX));
Transform3D zAxis = new Transform3D();
zAxis.setRotation(new Matrix3f(mZ));
//Colores.
final Color3f Amarillo = new Color3f(java.awt.Color.yellow);
final Color3f Azul = new Color3f(java.awt.Color.blue);
final Color3f Blanco = new Color3f(java.awt.Color.white);
Color3f eColor = new Color3f(0.0f, 0.0f, 0.0f);
Color3f sColor = new Color3f(0.0f, 0.0f, 0.0f);
Color3f objColor = new Color3f(0.0f, 0.1f, 0.1f);
Color3f lColor1 = new Color3f(1.0f, 0.0f, 0.0f);
Color3f lColor2 = new Color3f(0.0f, 1.0f, 0.0f);
Color3f alColor = new Color3f(0.2f, 0.2f, 0.2f);
Color3f bgColor = new Color3f(0.05f, 0.05f, 0.2f);
Color3f sunEmision = new Color3f(0.0f,1.0f,1.0f);
//Cuerpos Celestes
//Behaviors
// Create a bounds for the background and lights
BoundingSphere bounds =
new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);
Alpha sun_around_alpha = new Alpha(-1, 2000);
Alpha earth_around_alpha = new Alpha(-1, 500);
Alpha axis_around_alpha = new Alpha(-1, 750);
RotationInterpolator around_sun =
new RotationInterpolator(sun_around_alpha,
PGroup, zAxis,
0.0f, (float) Math.PI*2.0f);
RotationInterpolator around_earth =
new RotationInterpolator(earth_around_alpha,
KGroup, yAxis,
(float) Math.PI*2.0f,0.0f);
RotationInterpolator earth_around_earth =
new RotationInterpolator(axis_around_alpha, TGroup, xAxis,
(float) Math.PI*2.0f,0.0f);
around_sun.setSchedulingBounds(bounds);
around_earth.setSchedulingBounds(bounds);
earth_around_earth.setSchedulingBounds(bounds);
ColorCube sunSphere = new ColorCube(0.06f);
ColorCube earthSphere = new ColorCube(0.025f);
ColorCube moonSphere = new ColorCube(0.01f);
Raiz.addChild(SunGroup);
SunGroup.addChild(sunSphere);
//Hay que tener en cuenta que el resto de objetos (luna y planeta),
//seran descendientes de SunGroup, y por lo tanto la siguiente
//transformacion tambien les afecta a todos ellos.
SunGroup.setTransform(escala);
SunGroup.addChild(PGroup);
PGroup.addChild(EarthGroup);
PGroup.addChild(around_sun);
Transform3D EarthTraslacion = new Transform3D();
EarthTraslacion.setTranslation(t_sol_earth);
EarthGroup.setTransform(EarthTraslacion);
EarthGroup.addChild(TGroup);
EarthGroup.addChild(KGroup);
TGroup.addChild(earthSphere);
TGroup.addChild(earth_around_earth);
KGroup.addChild(around_earth);
KGroup.addChild(MoonGroup);
MoonGroup.addChild(moonSphere);
Transform3D MoonTraslacion = new Transform3D();
MoonTraslacion.setTranslation(t_earth_moon);
MoonGroup.setTransform(MoonTraslacion);
//Capacidades para poder rotar los cuerpos
EarthGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
MoonGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
SunGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
EarthGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
MoonGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
SunGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
PGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
PGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
KGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
KGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
TGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
TGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
//SunGroup.addChild(around_sun);
Raiz.compile();
return Raiz;
}
public Solarsistema() {
}
public void init() {
setLayout(new BorderLayout());
GraphicsConfiguration config =
SimpleUniverse.getPreferredConfiguration();
Canvas3D c = new Canvas3D(config);
add("Center", c);
// Create a simple scene and attach it to the virtual universe
BranchGroup scene = createSceneGraph();
u = new SimpleUniverse(c);
// This will move the ViewPlatform back a bit so the
// objects in the scene can be viewed.
u.getViewingPlatform().setNominalViewingTransform();
u.addBranchGraph(scene);
}
public void destroy() {
u.removeAllLocales();
}
public static void main(String[] args) {
new MainFrame(new Solarsistema(), 556, 556);
}
}
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