Attention: Answers.ros.org is deprecated as of August the 11th, 2023. Please visit robotics.stackexchange.com to ask a new question. This site will remain online in read-only mode during the transition and into the foreseeable future. Selected questions and answers have been migrated, and redirects have been put in place to direct users to the corresponding questions on Robotics Stack Exchange. Additional details are available here.

Revision history [back]

I would be very surprised if gmapping only outputs three values. You should have occupancies in the maps. Maybe you are doing something wrong in interpreting the raw data.

Also, the fact that you changed some line of code somewhere and "it doesn't work", doesn't encourage someone to properly help you.

ROS Answers is licensed under Creative Commons Attribution 3.0 Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.