[Qgis-user] problems with georeferencing results

G. Allegri giohappy at gmail.com
Tue Oct 25 10:04:36 PDT 2011


Hi all,
it was a long time I didn't use the Georeferencing plugin. The last time (a
couple of years ago) it did a great work, but now I'm having troubles with
it.
I'm tryin to reference a raster from a projected CRS to another projected
CRS (EPSG:3003 to ESPG:23032), thorugh a first order Polynomial.
It's just a test, so I fitted only a few points, but they should be enough
to give a plausible result.

Here it is the GCP list picture: http://bit.ly/suh5UL
(I wonder why ths srcY coordinates are shown as negative values)

The output is completely non-sense:

Upper Left  (-1002506.027,   -3813.852) (  4d22'40.86"W,  0d 2'0.82"S)
Lower Left  (-1002506.027,   -6287.920) (  4d22'40.88"W,  0d 3'19.20"S)
Upper Right (-1000330.363,   -3813.852) (  4d21'32.40"W,  0d 2'0.83"S)
Lower Right (-1000330.363,   -6287.920) (  4d21'32.41"W,  0d 3'19.22"S)
Center      (-1001418.195,   -5050.886) (  4d22'6.64"W,  0d 2'40.02"S)

Certainly I'm doing something wrong, but I can't find what...
giovanni
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