[OSM-dev] Guys I trusted you, I removed my checks...

Gregory Williams gregory.williams at purplegeodesoftware.co.uk
Tue May 19 13:08:45 BST 2009

> -----Original Message-----
> From: dev-bounces at openstreetmap.org [mailto:dev-
> bounces at openstreetmap.org] On Behalf Of Stefan de Konink
> Sent: 18 May 2009 23:57
> To: OSM-Dev Openstreetmap
> Subject: [OSM-dev] Guys I trusted you, I removed my checks...
> ...but again this trust was misplaced. No, it is not Potlatch 0.9a, it
> cannot be Potlatch is the perfect user tool and introduction to OSM. It
> must be API 0.6 that didn't solve all our problems, as was promised.
> Instead but it opened the gates of hell, a parallel universe within
> OSM...[/melodramatic] [start fanfare tune + brass]
> http://api.openstreetmap.org/api/0.6/way/8115655/full
> http://api.openstreetmap.org/api/0.6/node/255483811/history
> I probably have to blame myself; I was a fool to speed up my converter
> by removing the consistency checks. But since when do we support more
> than -180/+180 ?

Looking at the data, it was modified on 2008-05-11. That was within the API 0.5 timeframe. So surely it was the 0.5 -> 0.6 upgrade process that didn't catch the data anomaly, rather than the current API 0.6 code? After all, the data hasn't been changed since API 0.6 went live.

It's good to see that Iván has posted a very plausible reason for why those particular longitudes were getting shown. I found the location of the lake in question on Wikipedia and see that the latitudes have changed significantly as well. I've written a little bit of code to revert the nodes to their most recent valid positions and committed the result after checking that it looked reasonable in JOSM.


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