Theo Tessier

in ros, a topic has a publisher and subscriber. In this topic exist one type of msg who is the same for pub and sub. So in your problem, the...

the problem is your tf tree. In Rviz, for seen the map, it show the tf "map". But here your frame map isn't active/powered. for the active this map, you...

in the readMe, it said "In Rviz, uncheck "Map (cloud)" and check "Map (global)". Also check "Odom GPS", which visualizes the GPS odometry. " it's maybe for that.

For me the problem is the name of yours frame. Because if you have the same problem, in use "ros2 topic echo /[name of your topic]" you see this data....

Okay, so your bag isn't a problem. The problem is the connection with the slam. Can you use "rqt_graph" when your launch your bag and your slam (it's for show...

Okay, so actually your bag and your slam don't talk to each other. I can to explain to you the actual problem. When i see your rqt_graph, it show the...

t'inquietes. Actually your slam is sub only to you imu (when i read the msg for your rviz, your slam is maybe sub to you gps but i not sure.)...