[mkgmap-dev] road-speed

Sat Jan 28 21:54:25 GMT 2017

El 28/01/17 a las 15:41, Michael Poesdorf escribió:
>
> Dear all,
>
> maybe you could help me, as I did not find hints on the internet.
>
> I wonder if it is possible to have different road_speeds for different 
> vehicles in one map.
>
> Background:
>
> Currently I have one map for car use on my device and a second one for 
> vacation when travelling with the caravan. The second map has lower 
> road_speeds as I’m not that fast with the trailer.
>
> To save tiles and memory, the second map is quite reduced (less 
> points, also less minor streets, tracks, etc).
>
> For compiling and memory reason I would like to merge the speed aspect 
> into one map.
>
> Would it be possible to have something like
>
>    highway=* & type.equals("motorcycle") { add mkgmap:road-speed = '-2' }
>
> An additional aspect to consider would be that this command would be 
> needed multiple times, as from my experience it is not possible to do 
> „-2“ in general. Also there would be an issue with minor roads, that 
> have a low road_speed, as it might get negative.
>
> Any hint is greatly appreciated. If it is not doable at all, tell also 
> ,please.
>
> Thanks, Michael
>
>
I don't have an answer for your main question (and I would really like 
to, as I also build maps for two kind of vehicles in successive runs of 
mkgmap). Regarding your concern about negative values, you can use 
mkgmap:road-speed-min to set a minimum value mkgmap:road_speed can reach.