protected void transformRects(ArrayList<RectF> rects){
  for (int i=0; i < rects.size(); i++)   transformRect(rects.get(i));
}

protected void transformRects ( ArrayList < RectF > rects ) { for ( int i = 0 ; i < rects . size ( ) ; i ++ ) transformRect ( rects . get ( i ) ) ; }
transforms multiple rects with all matrices
