| 摘要 |
<p>PURPOSE:To facilitate display operation by displaying only the outline of the firearms effect range or radar coverage area and to improve the visibility when other symbols, etc., are displayed by superimposition. CONSTITUTION:When the effect distance of firearms, or the visibility distance of the radar, and the installation position of the firearms or the radar are inputted from an input means 1, an intersection calculation part 21 calculates all intersections where individual firearms effect ranges or radar coverage areas overlap with each other and an intersection removal part 22 removes the intersections present in the firearms effect ranges or radar coverage areas from the calculated intersections. A list structure calculation part 23 finds the relation of the firearms or radar in position relations wherein the firearms effect ranges or radar coverage areas overlap with each other in list structure from the installation position of the firearms or radar and a route retrieval part 24 retrieves a route which traces all the list structure anticlockwise from the rightest firearms or radar in the calculated list structure and returns to the initial point; and an outline extraction part 25 extracts the outline anticlockwise on the basis of the intersections calculated by the intersection calculation part 21 and intersection removal part 22 according to the route and a display means 3 displays the outline.</p> |
