[Talk-us] Proposal: Sunset ref=* on ways in, favor of relations
penorman at mac.com
Mon Nov 9 02:04:46 UTC 2015
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. It's
complex enough that it might be a barrier to merging a pull request.
There is an osm2pgsql issue 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.
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