I have a robot (let's say it is a simple 2-wheeled+caster wheel diff drive robot). It works as a vacuum cleaner of a sort: moves over the "world", leaving behind a band of "clean carpet". My question is, how can I paint this path that robot covered, in a different color, so it can be easily seen? I would provide my ideas, but I have none: no idea how to do it right. I use ROS2, Python and Gazebo. Thank you.



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