[OSM-talk] FW: [OpenStreetMap] #1327: Rendering non-existentdata

[Juan Lucas Dominguez Rubio]

"In Borges' story, the Aleph is a point in space that contains all other points. Anyone who gazes into it can see everything in the universe from every angle simultaneously, without distortion, overlapping or confusion. The story continues the theme of infinity found in several of Borges's other works, such as The Book of Sand." (Wikipedia, The Aleph)
 
cheers,
Lucas
 
________________________________

De: talk-bounces at openstreetmap.org en nombre de Dave Stubbs
Enviado el: jue 13/11/2008 11:40
Para: Steve Chilton
CC: talk at openstreetmap.org
Asunto: Re: [OSM-talk] FW: [OpenStreetMap] #1327: Rendering non-existentdata



On Thu, Nov 13, 2008 at 10:02 AM, Steve Chilton <S.L.Chilton at mdx.ac.uk> wrote:
> Trac #1327 below assigned to me but I can't resolve it.
> It is a minor nuisance of something rendering at origin:
> http://www.openstreetmap.org/?lat=0.000059&lon=-0.000016&zoom=18
> Shows as station on mapnik, car park on cycle, station on nonames, nothing on osma
> Editors show nothing there. Data layer says it is the API.
> Any thoughts.
> Just ignore it?
>

It's because the data isn't actually /there/ -- it's somewhere else.
When things go wrong it's not unusual for the projection code etc to
end up sticking stuff at 0,0. The API doesn't return it though.

For example, the station is node 32009797, located at -90 latitude...
the south pole.
There's also a BP petrol station at the north pole, a helpful
place=continent for Antartica, a helpful place for the North Pole, and
a number of parking nodes inserted by osm2pgsql from parking areas
that it obviously doesn't like.

So it's partially some bad data, and partially some odd behaviour on
the part of osm2pgsql/postgis/mapnik.
I'll have a go at correcting some of the data.

Dave

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