The one in Indonesia is the work of human mappers. There has been an effort going on to map all the buildings in Padang for the past 9 months or so.
It does look like some cleanup does need to be done of the area due to some duplicate nodes and other problems. But overall I think it has been a really great effort of a lot of folks to help. If you look at HOT's Tasking Manager you can see there is a large area that has been worked on that is almost finished. It is an area HOT bought high resolution satellite imagery for through a grant. -Kate On Sun, May 27, 2012 at 5:30 PM, Frederik Ramm <frede...@remote.org> wrote: > Hi, > > if you render the world on zoom level 16, there are 67 million "meta > tiles" (each covering an area of 8x8 tiles). The majority of them are in the > sea, obviously, and unlikely to have any data. 20 million meta tiles are not > in the sea; of these, 4.4 million have at least one node. > > As of 27th May 2012, only 142 of these meta tiles have more than 100,000 > nodes on them; the front-runner has a whopping 227,000. 105 are in France, > 26 in the US, 3 each in Italy and Brazil, and one each in Spain, Japan, > Denmark, Austria, and Indonesia. > > This count is a side effect of something else I was doing and I apologise > for not making a proper map of it; I've only dumped and reverse-geocoded the > top 142 regions: > > http://fred.dev.openstreetmap.org/density/ > > I'd be interested to know how many of these are actually the work of human > mappers. Most of the French ones are probably imported buildings, but the > others? > > If anyone wants to do something interesting with it, the full file of all > 4.4 million metatiles and how many nodes on them is available on request (or > the rather primitive script that makes the list from a planet file). > > Bye > Frederik > > -- > Frederik Ramm ## eMail frede...@remote.org ## N49°00'09" E008°23'33" > > _______________________________________________ > talk mailing list > talk@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
