A method of selectively providing cartographic features on a video display
of a navigation system for improved rendering is provided. The method
includes the steps of determining an operational mode of the navigation
system, selecting a desired cartographic entity for a cartographic
feature based upon the operational mode, and displaying the desired
cartographic entity on the video display. For example, less detailed
cartographic entities are selected for display when the navigation system
is in an operational mode that requires the video display to be updated
frequently ore a mode in which it is desirable to focus the user's
attention on a different cartographic entity. The less detailed
cartographic entity may have a lower intensity than or contrast less with
surrounding cartographic entities. In this manner, the user may be
provided the desired level of map details with the video display
regenerated rapidly.