| 摘要 |
<p>The system has a display device for displaying a road map, and a processor that is designed for selecting isoline data and for displaying isolines (1, 2, 3) on the display device. The illustrated road map and the isolines corresponding to the illustrated road map are superimposed on the display device. The isoline data comprises elevation data in the form of contour lines of identical elevation. Areas bordered by the isoline are shaded with a different color value or a different gray-scale value in accordance with the numerical value. An independent claim is also included for a method for simultaneously illustrating isolines and a road map on the display device of a navigation system.</p> |
