debugging

							   iUVRef[1]=iUVdir[1]+directionsUV[iUVdir[2]][1];

							   double [][] refCell=PATTERN_GRID[iUVRef[1]][iUVRef[0]]; // should never be null as it is an old one

							   if (refCell==null){

								   System.out.println("refCell==null");

								   continue;

							   }

							   //found reference cell, calculate x/y, make sure it is inside the selection w/o borders

							   double [][] wv=new double [2][];

							   wv[0]=refCell[1];