On Wed, Aug 29, 2012 at 12:02 PM, Onkar Shinde <onkarshi...@gmail.com>wrote:
> On Wed, Aug 29, 2012 at 8:41 AM, Arun Ganesh <arun.plane...@gmail.com> > wrote: > > Using OSM is easy once you have the coordinates, but I'm wondering how > they > > synced the monument list with the coordinates in the first place. I can > just > > assume the list already came with coordinates, but in our case we need to > > geocode the list which is a bit of a task. > > If I understood the problem correctly you can approach it in following way. > 1. OSM has a key defined 'wikipedia' which will point to a wikipedia > article for any node. [1] > Only, all monuments do not have a wikipedia page. Actually it seems like only a minuscule portion of them do. Also, most of the descriptions are generic: "Two swivel guns belonging to the Mughal Nawwara" "Burial Cave" "Ruins" Its quite a task to actually locate them and map it with this information. This is a massive coordinated mapping project itself. If done, it would be an awesome database which even the government may not have. > 2. Tag all the monuments that are already mapped with this tag > (provided wikipedia page is already present). > 3. Use XAPI to retrieve all the nodes which have this tag within the > bbox of India. [2] > 4. From this OSM dump you can easily get coordinates using some XML > parsing. > > Example XAPI query (bbox is small, retrieves one node) > > http://open.mapquestapi.com/xapi/api/0.6/node[bbox=72.607,17.639,74.983,19.542][wikipedia=*] > > [1] http://wiki.openstreetmap.org/wiki/Wikipedia > [2] http://wiki.openstreetmap.org/wiki/XAPI#Nodes > > > Regards, > Onkar > -- > Passion - Some people climb mountains - others write Free software. > Don't ask why - the reason is the same. > > _______________________________________________ > Talk-in mailing list > Talk-in@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk-in > -- Arun Ganesh (planemad) <http://en.wikipedia.org/wiki/User:Planemad> Geography.Information.Design <http://j.mp/ArunGanesh>
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