This chapter is a brief description of how the user can interact with the simulator. There
are two form of possible interaction. The first one is on-line and consist in controlling
the execution the simulator: starting/stopping the robot controller, changing the point
of view over the robot, changing the robot, changing the ground,...
The other kind of user intervention with the simulator is off-line and consists in setting
different configuration files (ground, robot, landmarks) and selecting which ones to load
at startup.