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5 Glossary
2D/3D GPS reception
The GPS receiver uses satellite signals to calculate its (your)
position and needs at least four signals to give a three-
dimensional position, including elevation. Because the satellites
are moving and because objects can block the signals, your
GPS device might not receive four signals. If three satellites are
available, the receiver can calculate the horizontal GPS position
but the accuracy is lower and the GPS device does not give you
elevation data: only 2D reception is possible.
Active route
The currently navigated route. Whenever the destination is set,
the route is active until you delete it, reach your destination or
you quit the software. See also: Route.
City Center
The city/town center is not the geometric center of the city but
an arbitrary point the map creators have chosen. In towns and
villages, it is usually the most important intersection; in larger
cities, it is one of the important intersections.
Color theme
Your software comes with different color themes for daytime or
night use of the map and menu screens. Themes are custom
graphic settings and they can have different colors for streets,
blocks or surface waters in 2D and 3D modes, and they display
shades or shadows in different ways in 3D mode.
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