13
Chapter 6: Maps and Data
6.1 Basemaps vs. Detailed Map
A basemap contains major map features such as highways and city centers. The
basemap that is built into the Magellan RoadMate has basic detail sufficient for
generally orienting oneself to a broad geographic area. The basemap is used when
navigating to a general area or point on the map outside of the detailed map area
covered on the preconfigured map SD card.
Detailed maps include all roads and highways, points of interest (POIs), geographic
features, railroads, and street addresses.
6.2 Basemap Routing vs. Detailed Map Routing
The Magellan RoadMate comes with a built-in basemap. The basemap contains
highways and city centers. The basemap does not contain street address information,
points of interest, or other map data (such as waterways, railroads, or parks). The
Magellan RoadMate can route via the basemap to a city center or point selected on
the screen using the available road data. Where there is no data, that is outside of
the detailed map area covered on the preconfigured map SD card, a thin, straight
line from point to point will be used with a flag indicating the start and finish of
normal street routing. You will be routed from your current position via a straight line
to the nearest major road or freeway on-ramp, along the freeway to the off-ramp
closest to your destination, and then via straight line to your destination.
With the detailed map, you are routed using turn-by-turn guidance on all city streets
and highways. Also, you have access to detailed map data and points of interest. As
you can see, with the detailed map the route becomes more direct using the surface
streets.
Destination
Current Position
Destination Selected fr
detailed map database
Current Position
