static Pair<CirclesAndLines, Canvas> showWeb(WebNode node) {
  ret showWeb(node.web);
}

static Pair<CirclesAndLines, Canvas> showWeb(Web web) {
  ret showWebWithAutoLayout(web);
}

static Pair<CirclesAndLines, Canvas> showWeb(Web web, int w, int h) {
  ret showWebWithAutoLayout(web, w, h);
}

static Pair<CirclesAndLines, Canvas> showWeb(S calStructures) {
  ret showWeb(webFromCALStructures_noMerge(calStructures));
}

static Pair<CirclesAndLines, Canvas> showWeb(S title, Web web) {
  Pair<CirclesAndLines, Canvas> p = showWeb(web);
  frameTitle(p.b, title);
  ret p;
}