[mkgmap-dev] vehicles in restriction relations

Mon Apr 7 16:56:34 BST 2014

Thanks Gerd, seems working fine.

I have set the following rules in my relation file (cycling map)
Because it's a bicycle routing only, I dont use motorcar tags from OSM and have to apply all bicycle restrictions for "motorcar" activity:

# remove restrictions for motorcar
type=restriction:motorcar  {delete type}
type=restriction & restriction:motorcar=* {delete restriction:motorcar}

#apply bicycle restrictions also for "motorcar"
type=restriction & restriction:bicycle=* {set restriction:motorcar='${restriction:bicycle}'}
type=restriction:bicycle {set type=restriction}
type=restriction & except ~ '.*bicycle'  {set except='${except};motorcar'}

Not sure if mkgmap recognize all these rules, I can hardly find any restrictions for bicycles.
The last rule with 'except bicycle' is working in "car mode" as intended.

> I thought about this again and found this solution:
> With r3172 you can add rules to the relations file to manipulate
> restriction relations,
> e.g. like this :
> type=restriction & except ~ '.*bicycle' {set
> except='${except};motorcar'}
> 
> The meaning of the restriction relation is now evaluated after style
> processing, so
> you can change or add or remove tags.
> If the restriction is not valid after that, it will be ignored.
> You probably have to add a few more rules to handle the cases like
> type=restriction:motorcar
> or
> restriction:motorcar=no_u_turn
> 
> I hope that works for all cases?