> From: Ákos Maróy [mailto:[email protected]] > Subject: [OSM-dev] determining the boundaries of cities? > > Hi, > > I wonder what is the best way to determine city boundaries based on the > OSM dataset. What I want to do is simply to have each city colored in > light yellow (uniformly), with a black outline at the edge of each city.w > I'm not concerned about the streets inside the cities, etc. > > I looked at the OSM data for Hungary, and of course at the OSM Wiki, but > I'm still yet to be able to determine the best way to achieve the above. > > One possibility seemed to be to go with: > > boundary = administrative && admin_level = 8 > > > but this will actually create a full tiling of the map - the edges of > these areas not the edges of the cities themselves, but they 'fill up > the space' up to the neighboring such areas. basically the 'rural area' > between the cities is filled up
In many places this is correct. Frequently there is no land between cities - all the land is in a city. For example, in Greater Vancouver all the land belongs to one city or another, including the farmland. I can't answer definitively for Hungary, but it sounds like that's the case. _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
