If you just need the geometric center of a town or city, I agree that there is no need to add a point for that.
The renderers can already place labels in the geometric center. For example, the main OSM map style Mapnik already does this. See this example for Obando, Bulacan <http://osm.org/go/4zL__Wce->. As you can see, there are two labels for Obando, the geometric center to the upper left which was added automatically, and the manual label to the lower right which corresponds to where the downtown area is (where the Obando Church, town plaza, and the college, and the public market is). However, if you want to create a map like this one for Siquijor province <http://en.wikipedia.org/wiki/File:Ph_map_siquijor.png> (warning! the map is outdated. I created it before OSM even existed), where the town markers are located in the poblacion area, then you need a node to mark that location. The geometric center isn't useful for this kind of map at all. (Hmmm, I think I can recreate the Siquijor map using OSM data now. Just need to find the time to do it. :-) On 6/3/11, Jim Morgan <j...@datalude.com> wrote: > Just to play devil's advocate here ... I guess there's also a case for > marking a city, village, barangay as the exact geometric centre of the area. > That would certainly make sense at the lower zoom levels. > > Maybe some renderers already do this? In which case, as long as the boundary > area is tagged, then there's no need for the second, single point to be > tagged, which saves work. > > Jim > > _______________________________________________ > talk-ph mailing list > talk-ph@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk-ph > -- http://vaes9.codedgraphic.com _______________________________________________ talk-ph mailing list talk-ph@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ph
