einfachesuniversum.java

java3d api 空间坐标系的点的显示

/*
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 * and open the template in the editor.
 */

package javatest3d;
import java.applet.*;
import java.applet.Applet;
import java.awt.*;
import javax.media.j3d.*;
import com.sun.j3d.utils.universe.*;
import com.sun.j3d.utils.geometry.*;
import javax.swing.JFrame;
import javax.vecmath.*;
/**
 *
 * @author xu04
 */
public class EinfachesUniversum extends Applet{

    public BranchGroup erzeugeWuefel()
    {
    //
    BranchGroup objRoot=new BranchGroup();
    ColorCube colorcube=new ColorCube(0.4);
    Transform3D rotation_x=new Transform3D();
    Transform3D rotation_y=new Transform3D();
    
    rotation_x.rotX(Math.PI/4.0d);
    rotation_y.rotY(Math.PI/5.0d);
    rotation_x.mul(rotation_y);
    //Transform Gruppenknoten erzeugt
    TransformGroup objRotation=new TransformGroup(rotation_x);
    //verbinden der einzelnen Gruppenknoten
    objRoot.addChild(objRotation);
    //colorcube an Transformgruppe haengen
    objRotation.addChild(colorcube);
    //Teilbaum kompilieren (optimierung)
    objRoot.compile();
    return objRoot;
    }
    public BranchGroup erzeugeText()
    {
    //erzeugt den obersten Gruppenknoten des Objekts
    BranchGroup objRoot=new BranchGroup();
    
    Transform3D translation=new Transform3D();
    translation.setTranslation(new Vector3d(-0.6,0.1,0.42));//(-0.6,0.1,0.42));
    TransformGroup objTranslation=new TransformGroup(translation);

    objRoot.addChild(objTranslation);
    objTranslation.addChild(new Text2D("CCCCC  DDDD",
                                        new Color3f(0f,1f,1f),
                                        "Helvetica",
                                        40,
                                        0));
    objRoot.compile();
    return objRoot;
    }
    public EinfachesUniversum()
    {
        setLayout(new BorderLayout());
        
        GraphicsConfiguration config=
                SimpleUniverse.getPreferredConfiguration();
        
        Canvas3D canvas3D=new Canvas3D(config);
//         GraphicsConfiguration config =
//    SimpleUniverse.getPreferredConfiguration();
//    Canvas3D c =new Canvas3D(config);
//    
        add("Center",canvas3D);
        SimpleUniverse simpleUniverse =new SimpleUniverse(canvas3D);
        simpleUniverse.getViewingPlatform().setNominalViewingTransform();
        
        BranchGroup wuerfelbranchgroup = erzeugeWuefel();
        BranchGroup textbranchgroup = erzeugeText();
        
        simpleUniverse.addBranchGraph(wuerfelbranchgroup);
        simpleUniverse.addBranchGraph(textbranchgroup);
    }
    
}