| 摘要 |
In a map drawing apparatus (100), a map database (101) stores data representing a first map element as internal data. A first acquisition unit (103) acquires the internal data from the map database (101). A second acquisition unit (104) receives, via a network such as the Internet, data representing a second map element as external data. A determination unit (105) determines whether or not the first map element represented by the internal data and the second map element represented by the external data received by the second acquisition unit (104) are identical map elements. A drawing unit (106) draws, when the first map element and the second map element are determined to be identical map elements by the determination unit (105), only either one of the first map element and the second map element on a map. |
