替换新的map.yaml以及map.pgm

[baiyeha]

Hello, may I ask if I need to replace new maps map.yaml and map.pgm, how should I correctly operate them?

I tried the new map. Yaml and map. The PGM replacement to/catkin_ws/SRC/turtlebot3 / turtlebot3_navigation/maps, then run the roslaunch dwa_planner demo. The launch, Although the map is loaded, the point cloud data displayed is still the shape of the old map, how to solve it?