Hi to all, I'm currently trying to load an empty map by directly publishing it in the form of nav_msgs/OccupancyGrid instead of using the map_server. Knowing amcl is combining all the 'tf' together, what should i do to pass the odom-to-map tf to amcl. With thanks, Zhiping -- View this message in context: http://ros-users.122217.n3.nabble.com/Loading-empty-map-to-move-base-tp2516192p2516192.html Sent from the ROS-Users mailing list archive at Nabble.com.