Hi, I tried this demo, and load the default default.rviz, but I cannot restore the demo!

[FanZhenhui]

Hi, I tried this demo, and load the default default.rviz, but I cannot restore the demo you released, there is no the particle and the occupied map!
Can you guide how to show the particle and the map?

[FanZhenhui]

following are the topic list, but the /pf_localization/grid_map /pf_localization/grid_map_updates
and the /pf_localization/particles has no message(I used rostopic echo /, but get no message)
/clicked_point
/clock
/initialpose
/mbot/encoder
/mbot/odometry
/move_base_simple/goal
/pf_localization/grid_map
/pf_localization/grid_map_updates
/pf_localization/particles
/rosout
/rosout_agg
/scan
/tf
/tf_static