[Qgis-user] maps rotated and reversed.

[Árni Geirsson]

I have found that it is necessary to have the scanned map image oriented
roughly the right way - I don't know what the limit is. In other words that
the georeferencer can not cope with upside down or sideways images. So I
use photo editing software to get the image close and then the
georeferencer works just fine.

Arni


Árni Geirsson
*Alta ehf* // +354 582 5000 // +354 897 9549

On 26 February 2017 at 18:48, Nicolas Cadieux <nicolas.cadieux at archeotec.ca>
wrote:

> Hi,
>
> You have CRS problem.  Your map is probably in a coordinate reference
> system that uses  x,y, but you are probably selecting a CRS that uses y,x.
> Ex: latitude/longitude vs long/lat. that would explain everything.
>
> Nicolas
>
> Le 26 févr. 2017 à 10:33, Randal Hale [via OSGeo.org] <[hidden email]
> <http:///user/SendEmail.jtp?type=node&node=5309565&i=0>> a écrit :
>
> Make sure your CRS of the georeferencer and the CRS of QGIS are the same.
> I bet you're mixing stateplane/utm with WGS84 (4326).
>
> Randy
>
>
> On 02/26/2017 10:04 AM, Charles Barrows wrote:
>
> I am using  the Georeferencer plugin on a jpg map.  Everything goes
> smoothly, but the resultant map file in QGIS has been rotated 90 degrees
> and reversed.  The rotation is easy to handle but I can’t figure out how to
> reverse the reverse.  What am I doing wrong?
>
> Charley
>
>
>
>
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> --
> ------------------------------------------------
> Randal Hale
> North River Geographic Systems, Inchttp://www.northrivergeographic.com
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