No map messages received in Rviz when run this simulation with gmapping

[kktfox]

I run racecar.launch and gmapping, but I can't see map in Rviz when run gmapping.

Also, I find odom_frame is not connected with base_link in tf tree. Is this maybe the reason fo question? Could anyone konw how to fix it, really thx.

[devanshdhrafani]

Hi! Were you able to solve this issue?

[kktfox]

My problem is caused by wrong tf relations. you can check tf tree. It seems a little error exist in publishing tf between two frames.

[devanshdhrafani]

Hi! Thanks for your reply. I was able to solve the problem.

The issue was that no odom-->base_link transform was being published. Have a look at this post where I fixed the same. And here you can find the code for launching gmapping.