App: Speed based auto zoom control

[devemux86]

@Ciutnik

Therefore, in addition to the min and max zoom settings, I would also like to set the corresponding min and max speeds. So, four parameters instead of two.

Are there any navigators that work with all those available options?

@Ciutnik

For example: I set zoom 17 at speeds below 15 km/h and zoom 14 at speeds above 100 km/h. Intermediate zoom values ​​could be interpolated, e.g. every 0.5 zoom value (or e.g. every 20 km/h if easier to implement).

Current implementation is not as primitive as described above - with only a simplistic interpolation.

@Ciutnik

In this way, everyone has adjusted levels based on own preferred speed, zoom and screen size (!)

The algorithm includes also visible distance based on screen size or else result would be awkward.