| 摘要 |
The invention relates to a navigation device (200) comprising a display (240) for displaying a digital map to a user, a processor (210) configured to access digital map data and cause a digital map to be displayed to a user using the display, and a user interface operable by a user to enable the user to interact with the apparatus. The user interface is arranged to allow a user to provide, on the displayed digital map displayed to the user, an indication of a selected region present in the digital map which the user wishes to include or exclude from a route calculation process. The processor (210) is arranged to determine digital map data relating to the selected region indicated by the user, and to calculate a route including or excluding the region.
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