I have a robot, it is a simple 2-wheeled+caster wheel diff drive robot. It works as a vacuum cleaner: 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.