// ビックリ箱(Ｚバッファで隠面除去) [Box3.java] 
 //==================== 座標データ ==================== 
 public class Box3 { 
   final double L=50; 
   final double sin60=Math.sin(60*Math.PI/180.0)*L; 
   final double cos60=Math.cos(60*Math.PI/180.0)*L; 
   double [][] x={{0,0,L,L},{L,L,L,L},{0,0,L,L}, 
                  {0,0,0,0},{0,L,L,0},{0,L,L,0}}; 
   double [][] y={{0,L,L,0},{0,L,L,0},{L,L+sin60,L+sin60,L}, 
                  {0,0,L,L},{0,0,0,0},{0,0,L,L}}; 
   double [][] z={{0,0,0,0},{0,0,L,L},{0,cos60,cos60,0}, 
                  {0,L,L,0},{0,0,L,L},{L,L,L,L}}; 
 }//end Box3