The apparatus recognizes line length of character strings and judges if a line is longer than a threshold length. According to this embodiment, each map image to be displayed is first georeferenced, to provide a set of conversion functions between each map’s internal coordinate system and a geographic coordinate system, which is latitudelongitude in the preferred embodiment. Dormant mode with paging is implemented in a protocol that supports dormant functionality and paging functionality but does not itself provide methods or standards for implementing such functionality, such as the IEEE 802. The present invention enables a seismic array to be maneuvered as the towing vessel maintains course, enables maintenance of specific array position and geometry in the presence of variable environmental factors and facilitates four-dimensional seismic data acquisition by sensing and storing the position of the array and each array element with respect to time. The method first executes a series of steps that causes a stepper motor connected to an axis of the mirror to move the mirror through a first coarse alignment procedure and then executes a second series of steps that that moves the mirror through a second fine alignment procedure.