When the robot begins cleaning the floor, it will only go about 8-10 feet in a straight line and then turn around even though it has only gone half way across the open floor. Why?
The robot cleans a room in segments. It may decide to break the room into smaller segments based on what furniture is in the room and what it can see at its viewing point. There is no guarantee it will complete a room with one single segment. It will usually break it down into smaller map segments of 15’x15′ or less.