| 摘要 |
<p>PROBLEM TO BE SOLVED: To intelligibly display movement directions to targets existing out of a display range of a map.SOLUTION: A server device 12 comprises an acquisition unit 51, a generation unit 52, and an output unit 53. For targets whose positions are to be displayed on a map, the acquisition unit 51 acquires pieces of position information indicating positions of the targets. The generation unit 52 generates screen information that, for the targets whose pieces of acquired position information indicate positions in a display range of the map to be displayed on display means, displays their positions on the map, and for the targets whose pieces of position information indicate positions out of the display range of the map, counts the number of targets in preset areas out of the display range in predetermined directions from the display range and displays the counted number of targets with marks indicating the directions. The output unit 53 outputs the generated screen information to the display means.</p> |
