import javax.swing.JPanel;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.*; 
import java.awt.*;


public class MyWorldView extends JPanel { 
   
   public MyWorldView(MyWorld w){
      world = w;    
   }

   public void paintComponent(Graphics g){
      Graphics2D g2 = (Graphics2D)g;
      super.paintComponent(g); // it paints the background
      g2.setStroke(new BasicStroke(0.02f));
   }


   private MyWorld world;




   }
// END declarations to use metric coordinate system (not pixels)