[Talk-us] Proposal: Sunset ref=* on ways in, favor of relations

Richard Welty rwelty at averillpark.net
Mon Nov 9 02:19:36 UTC 2015

On 11/8/15 9:04 PM, Paul Norman wrote:
> On 11/7/2015 10:18 AM, Kevin Kenny wrote:
>> I find lately that it needs a patched Mapnik, because Mapnik (sensibly)
>> went to a read-only database connection, and one of Phil's stored
>> procedures modifies the database the first time that a shield cluster
>> is requested. One of these times I'll fix it.
>> I'm a little disappointed that none of the 'standard' renderers
>> picked this up. 
> Phil's demo was an excellent proof of concept of pictorial shields
> from route relations, but isn't something that can be reasonably
> incorporated into a stylesheet as-is.
> https://github.com/gravitystorm/openstreetmap-carto/issues/596 is the
> OpenStreetMap Carto issue for shields from relations,
> https://github.com/gravitystorm/openstreetmap-carto/issues/508 is the
> one for pictorial shields.
> When matching shield colours to highway types, it becomes necessary
> use fairly complicated SQL to get route relation information[1]. It's
> complex enough that it might be a barrier to merging a pull request.
> There is an osm2pgsql issue[2] that would make it simpler, but no one
> has expressed an interest in taking that on.
> With no one stepping up to work on the issue, nothing will change. I
> can't speak with certainty on what other stylesheets have planned, but
> I don't expect the HOT style, osm FR, OSM German Carto, OSM Bright or
> any other open-source style to be any closer to an implementation, and
> I think the proprietary stylesheets are the same.
there are those of us who are interested, but i know that Phil got pretty
busy with other stuff and i know i have less than no available time.

so while i'd love to see it happen, negative available time is a major


rwelty at averillpark.net
 Averill Park Networking - GIS & IT Consulting
 OpenStreetMap - PostgreSQL - Linux
 Java - Web Applications - Search

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