[R-sig-Geo] Geocode for Bogota

Michal Palenik michal.palenik at freemap.sk
Thu Mar 11 13:34:43 CET 2010


or start your own www.openstreetmap.org geocoder
see
http://wiki.openstreetmap.org/wiki/Nominatim
if you take just the database for a part of the world (not the whole
several GB version), it is very fast

michal palenik
On Thu, Mar 11, 2010 at 09:26:23AM +0100, Tomislav Hengl wrote:
> Google has an API that allows you to geocode addresses (or anything that spatial coordinates in their database) e.g.:
> 
> > readLines(url("http://maps.google.com/maps/geo?q=1600+Amphitheatre+Parkway,+Mountain+View,+CA
> &output=csv&key=abcdefg"), n=1, warn=FALSE)
> [1] 200.00000 8.00000 37.42197 -122.08414
> 
> See also:
> 
> http://spatial-analyst.net/wiki/index.php?title=Mapping_research_hot-spots
> 
> They limit, however, the number of geocode requests to 15,000 in a 24 hour period. If the url connection breaks, then it might be a good idea to run the same loop one more time and set add a while command to look for the missing coordinates.
> 
> HTH,
> 
> T. Hengl
> http://home.medewerker.uva.nl/t.hengl/ 
> 
> 
> > -----Original Message-----
> > From: r-sig-geo-bounces at stat.math.ethz.ch [mailto:r-sig-geo-
> > bounces at stat.math.ethz.ch] On Behalf Of Juan Tomas Sayago
> > Sent: Wednesday, March 10, 2010 12:06 AM
> > To: r-sig-geo at stat.math.ethz.ch
> > Subject: [R-sig-Geo] Geocode for Bogota
> > 
> > Dear List,
> > I need to geocode or to convert from address to coordenates.
> > If someone knows what program I should use and some tips for  it.
> > Thanks
> > Juan
> > 
> > --
> > Juan Tomás Sayago
> > Universidad Central
> > http://sites.google.com/site/juantomassayago/
> > Objetivo: Garantizar a cada ser humano que habite en el país, una cantidad mínima
> > de agua con calidad segura para el consumo humano, en forma regular, permanente y
> > suficiente para la vida y la salud
> > 
> > 	[[alternative HTML version deleted]]
> 
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