protected void setObjectFormatter(ObjectFormatter obj) {
    this.objFormatter=obj;
    if (sectionMap!=null)
      for (CatNodeSection c: sectionMap.values())
        c.setObjectFormatter(obj);
    if (doppleGangers!=null)
      for (CatNodeSection dopple: doppleGangers)
        dopple.setObjectFormatter(obj);
  }