In Brazil, admin_level=4 is state level, so it would be state_capital=yes. I've never really thought about it in depth because Brazil only has 2 administrative levels with a "capital" city and the country only has 1 capital. This is how it looks like in Brazil now:
1. Node tagged as place=city+state_capital=yes, representing a state's capital city, placed (at least in theory) at the city's square one point. (Replace with capital=yes only for Brasília.) 2. Relation tagged as boundary_administrative+admin_level=8+place=city with an admin_centre role referencing the previous node. 3. Node tagged as place=state representing the state, placed at its geometrical center. * 4. Relation tagged as boundary=administrative+admin_level=4+place=state with a label role referencing the previous node and an admin_centre role referencing the first node. I know that Germany has more than 2 administrative levels, and probably that's why values are being used for a capital tag instead of many tags with a single "yes" value. It does make some sense for a renderer, but does any support more than just 2 visual styles for capitals right now? It would make more sense to require apps to check the relation for its admin_level tag, then it would be impossible to have the relation and the node contradict each other (say, by accident), and there would be no need for a capital tag (it's always the "admin_centre" of the country or of a state's boundary relation). This would require just a little extra effort for renderers (which must support multipolygon relations anyway) and geocoders, including routers (which must support boundary relations to know to which areas each POI belongs to). * This seems to be the practice in most countries in the world. So much so that we could probably get rid of such nodes and just let the rendered calculate the center and render the label there. On Wed, May 14, 2014 at 12:05 AM, Andreas Goss <andi...@t-online.de> wrote: > Am 5/14/14 04:51 , schrieb Fernando Trebien: > >> For a long time I believed that the >> only practical reason for placing "capital=yes" or "state_capital=yes" >> on a node was to help the renderer decide how to render the label; > > > And what happens when go to admin_level=4? > __________ > openstreetmap.org/user/AndiG88 > wiki.openstreetmap.org/wiki/User:AndiG88 > > > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging -- Fernando Trebien +55 (51) 9962-5409 "Nullius in verba." _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
