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RNS 510 Radio/Navigation System
Autozoom
This is a dynamic zoom function that is constantly
adapted. When it is switched on, the navigation
system calculates the best display scale depending on
the road class being used and the distance to the next
manoeuvre point.
The road classes are divided into the following five
categories:
- Residential roads
- Urban roads
- District roads
- Country roads
- Motorways
There are therefore five standard starting zoom
values. Depending on the type of manoeuvre point,
the autozoom function is also called crossroads or exit
zoom.
Manoeuvre points are all features that can occur on
the roads, for example, entrances, crossroads,
motorway slip roads and motorway junctions.
The largest possible zoom factor is set as you
approach a relevant manoeuvre point so that both
the current vehicle position and also the manoeuvre
point can be seen at the same time on the screen.
Once the manoeuvre point has been passed and the
next one is still a sufficient distance away, the system
switches back to the previous display scale or the
standard zoom value for that particular road class.
If the autozoom function is activated in an off-road
position, the current scale will be maintained until an
on-road position is recognised and the autozoom
function becomes active.
If the driver is using waypoint mode, i.e. driving to
route points set by the user, autozoom is not possible.
The driver or the user cannot influence the autozoom
function manually.
Automatic selection of the best display
size
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