[mkgmap-dev] Multiple relation names

Mon Mar 25 20:26:42 GMT 2013

On Mon, Mar 25, Geoff Sherlock wrote:

> Hi Thorsten,
> 
> Apologies, this is the first time I have worked with relations and I need 
> some clarity.
> 
> Firstly:
> >set route_display_name='${route_display_name}'
> >
> >This will overwrite the old route_display_name, you need to
> >add it.
> 
> I was under the impression this would add route_display_name to the line 
> setting it to route_display_name from the relation

Yes, it adds route_display_name to the line with the 
route_display_name name of the relation, by overwriting the
existing one.

> Next:
> Looking at your code it simply seems to concatenate relation tags: 
> route_blue_name, osmc:name, distance and name in various combinations 
> depending which exist.

Correct.

> I see osmc:name is an internal variable; is this not created internally by 
> mkgmap? Perhaps it stands for the concatenation of the names of relations 
> sharing this way, is this what you mean?

No, osmc:name is an official OSM tag for hiking relations.
In my case, route_blue_name is a new tag with all the names.

  Thorsten

> -----Original Message----- 
> From: Thorsten Kukuk
> Sent: Monday, March 25, 2013 7:41 PM
> To: Development list for mkgmap
> Subject: Re: [mkgmap-dev] Multiple relation names
> 
> On Mon, Mar 25, Geoff Sherlock wrote:
> 
> > I’m sure I’ve read on this list that this is possible. For walking maps I 
> > would the way name to consist of all possible related names for that way. 
> > For instance for the relations named ‘Icknield Way’ and ‘Chiltern Way’, I 
> > would like a way that is contained in both relations to be named ‘Icknield 
> > Way Chiltern Way’.
> >
> > Currently I am displaying names for relations using the following in the 
> > relations style file:
> > type=route {
> >     apply {
> >         set route_display_name='${name}';
> >     }
> > }
> >
> > Then I changed the names of tracks, bridleways, cycleways and footways in 
> > the lines file with:
> > type=route & route_display_name=* {
> >     apply {
> >         set route_display_name='${route_display_name}'
> >     }
> > }
> > (highway=track | highway=bridleway | highway=cycleway | highway=footway) & 
> > route_display_name=* {set name='${route_display_name}' continue 
> > with_actions}
> >
> > This is working fine except for two points:
> >
> > 1. Where a way shares two relations only one name is shown (presumably the 
> > last alphabetically).
> 
> 
> set route_display_name='${route_display_name}'
> 
> This will overwrite the old route_display_name, you need to
> add it.
> For example what I do:
> (route=foot | route=hiking) &
>         (osmc:symbol=blue | osmc:symbol ~ 'blue:.*') &
>         (name=* | osmc:name=*) &
>         (network=iwn | network=nwn | network=rwn | network=lwn) {
>         apply { set route_blue='$(route_blue):${osmc:symbol}'|
>                                  '${osmc:symbol}';
>                 set route_blue_type='${network}';
>                 set route_blue_name=
>                     '$(route_blue_name), ${osmc:name} (${distance})' |
>                     '$(route_blue_name), ${osmc:name}' |
>                     '${osmc:name} (${distance})' | '${osmc:name} |'
>                     '$(route_blue_name), ${name} (${distance})' |
>                     '$(route_blue_name), ${name}' |
>                     '${name} (${distance})' | '${name}'
>               }
> }
> 
> So route_blue_name contains afterwards a comma seperated list
> with all osmc:name of all routes.
> 
>   Thorsten
> 
> -- 
> Thorsten Kukuk, Project Manager/Release Manager SLES
> SUSE LINUX Products GmbH, Maxfeldstr. 5, D-90409 Nuernberg
> GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB 16746 (AG Nürnberg)
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-- 
Thorsten Kukuk, Project Manager/Release Manager SLES
SUSE LINUX Products GmbH, Maxfeldstr. 5, D-90409 Nuernberg
GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB 16746 (AG Nürnberg)