| 摘要 |
This airspace-zone-information processing device (100) consolidates a plurality of airspace zones that have unspecified circumnavigation directions. From three or more reference points set apart from each other on a spherical surface, for each of said reference points, a vector generation unit (1) selects, from among one or more line segments constituting an airspace zone defined by a closed curve on the spherical surface, a line segment that can be drawn without intersecting another line segment. Also, for each of the three or more reference points, the vector generation unit (1) generates a vector pointing from the selected line segment to the reference point in question. Of the two regions on a sphere that are separated by the abovementioned closed curve, an airspace-zone recognition unit (2) recognizes the region containing the majority of the aforementioned vectors associated with the three or more reference points as the outside of an airspace zone and recognizes the other region as said airspace zone. |
