How to generate /map topic?

asked 2019-07-02 22:10:28 -0600

goateehige gravatar image


I was trying to follow some tutorials regarding navigation and mapping, and I realized that they all add the topic /map to the RVIZ Map tab. However, if I look at my active topics list I can't see a topic named /map. Is there a specific node I need to launch to get that topic? or a specific procedure that need to be followed?

Any help would be appreciated.

Thank you.

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Almost all navigation packages rely on localization, which is usually provided by either a SLAM algorithm (like gmapping, slam_karto, ...) creating the map or localization algorithm like amcl which needs a map to work, that is usually published from the map_server.

There are quite some tutorials available that explain both cases.

Please follow up with more concrete questions (and a link to the tutorial you are following) if this is not sufficient.

mgruhler gravatar image mgruhler  ( 2019-07-03 01:09:24 -0600 )edit