static Pair<CirclesAndLines, Canvas> showWeb_noAutoLayout(Web web) {
  CirclesAndLines cal = webToCAL(web);
  ret pair(cal, showCAL(cal));
}

static Pair<CirclesAndLines, Canvas> showWeb_noAutoLayout(Web web, int w, int h) {
  CirclesAndLines cal = webToCAL(web);
  ret pair(cal, showCAL(cal, w, h));
}