Start the world
source devel/setup.bashroslaunch rosbot_gazebo rosbot_world.launchAdd the rosbot model
source devel/setup.bashroslaunch rosbot_description rosbot_gazebo.launchStart the key operation
source devel/setup.bashroslaunch rosbot_navigation rosbot_teleop.launchIn a seperate terminal
rosrun rqt_tf_tree rqt_tf_tree