When the stations at each end of the baseline had made their measurements, they communicated these to a plotting room (or fire control center) which used an analog tracking device called a plotting board to locate the position of the target. Later in World War II, the target bearings could be input to an electro-mechanical gun data computer, which calculated the position of the target and the required adjustments for things like ballistic factors and the locations of the guns that were to be fired.
Upon completion of measurements at each terminal point along the baseline, the data was transmitted to a plotting room (or fire control center), where an analog tracking device, known as a plotting board, was employed to determine the target's location. This process continued until World War II, when the target bearings were input into an electro-mechanical computer, which calculated the target's position and required adjustments for various factors.