FIELD: physics.
SUBSTANCE: plurality of navigation control devices is arranged along a plurality of the linear antennas and controls, at least, the transverse position of the linear antennas. At least, one of the navigation control devices arranged along the first linear acoustic antenna performs the following steps: obtaining (81, 82) a local angle measurement of the pen or the parameter associated with the pen angle; local measuring associated with, at least, one of the navigation control devices arranged along the first linear acoustic antenna (51); calculating (83) the lateral force depending on the obtained local measurement, and applying (84) the calculated lateral force.
EFFECT: improved method.
16 cl, 10 dwg
