[HOT] Image offset issue #1515

Kretzer kretzer at gmx.net
Thu Feb 18 23:04:32 UTC 2016

Sorry, with the link it's easier to find: http://tasks.hotosm.org/project/1515#task/30

> Gesendet: Donnerstag, 18. Februar 2016 um 23:41 Uhr
> Von: Kretzer <kretzer at gmx.net>
> An: "HOT Openstreetmap" <hot at openstreetmap.org>
> Betreff: Image offset issue #1515
> Hi,
> I started some tracing in task #1515 (Mochendi, Botswana). I opened a tile (#30) with all roads and many buildings already in place, all somewhat offset from the Bing imagery. Between them they were very consistent, so I figured it would make more sense to align the image than move alle the existing features. This I did and traced the missing buildings to the realigned image.
> Now this tile is pretty consistent in itself but not to the adjoining areas. So what next? 
> Can someone check the georeferencing of the Bing image? Or should the whole content be moved to fit to the current imagery? I did not check the whole area, but many roads seem to be similarly offset and many buildings aligned to the current Bing imagery.
> Thanks!
> K
> (feeling confused at the moment)

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