| 摘要 |
PROBLEM TO BE SOLVED: To grasp the degree of concentration of specific facilities in a region around peripheral facilities by searching the region having the specific facilities based on map information and by displaying the degree of concentration of the specific facilities. SOLUTION: This navigation device comprises: a map information storage means for storing information relating to specific facilities; a retrieval means for retrieving the specific facilities by accessing the map information storage means to set the region with the specific facilities concentrated as a specific facility region; and a display control means for displaying the plurality of peripheral facilities, and the degree of concentration of the specific facilities in the specific facility concentration region corresponding to the respective peripheral facilities. COPYRIGHT: (C)2004,JPO |
