cubeline2.java

Java3D程序,实现各种立体变换.适于基础编程.

import com.sun.j3d.utils.universe.SimpleUniverse; 
import com.sun.j3d.utils.geometry.*; 
import javax.media.j3d.*;
import javax.vecmath.Vector3f;

//import java.applet.Applet; 
public class CubeLine2
{
  public CubeLine2()
   {SimpleUniverse su=new SimpleUniverse();
    BranchGroup bg=new BranchGroup();
    
    TransformGroup tgAll=new TransformGroup();
    Transform3D tfAll=new Transform3D(); 
    Vector3f vectAll=new Vector3f(0.9f,0.9f,-10.0f);
    tfAll.setTranslation(vectAll);
    tgAll.setTransform(tfAll);
    bg.addChild(tgAll);
    
    int nr;
    float startX, startY, startZ, stepX, stepY, stepZ, startSize, stepSize;
    startX=-0.6f;
    startY=-0.6f;
    startZ=-0.0f;
    stepX=0.2f;
    stepY=0.1f;
    stepZ=0.0f;
    startSize = 0.1f;
    stepSize = 0.0f;
    
    for(nr=0;nr<7; nr++)
    	{ float s,x,y,z;
    	  x = startX + nr * stepX;
    	  y = startY + nr * stepY;
    	  z = startZ + nr * stepZ;
    	  s = startSize + nr * stepSize;
    	  tgAll.addChild(TGroup(s,x,y,z));  
    	}

    su.getViewingPlatform().setNominalViewingTransform();
    su.addBranchGraph(bg);

   }

public static void main(String[] args)
  {new CubeLine2();
  }

public TransformGroup TGroup(float size, float x, float y, float z)
{TransformGroup tg=new TransformGroup();
 ColorCube cc=new ColorCube(size);
 tg.addChild(cc); 
 Transform3D tf=new Transform3D(); 
 Vector3f vect=new Vector3f(x, y, z);
 tf.setTranslation(vect);
 tg.setTransform(tf);
 return tg;
}
}