54     for (std::map<std::string, visualization_msgs::Marker>::iterator it = 
markers_.begin();
 
   68       visualization_msgs::Marker clear_marker;
 
   69       clear_marker.id = 
getID(name);
 
   70       clear_marker.action = visualization_msgs::Marker::DELETE;
 
   77     for (std::map<std::string, visualization_msgs::Marker>::iterator it = 
markers_.begin();