[Qgis-user] problems with georeferencing results

[Barend Köbben]

Hi Giovanni,

I don't understand: you want to change a projected raster (in CRS 3003) to
another projection (23023), so why do you need the georeferencing plugin?
The data is already referenced, so it sounds to me you just want to
re-project it, using the Raster > Warp menu.

Or am I missing something...?

Yours,

--
Barend Köbben (Senior Lecturer)
ITC - University of Twente, Faculty of Geo-Information
Science and Earth Observation
PO Box 217, 7500AE Enschede (The Netherlands)
+31-(0)53 4874 253



On 25-10-11 21:23, "G. Allegri" <giohappy at gmail.com> wrote:

>Thanks for the reply.My raster infos are:
>
>PROJCS["Monte Mario / Italy zone 1",
>    GEOGCS["Monte Mario",
>        DATUM["Monte_Mario",
>            SPHEROID["International 1924",6378388,297.0000000000014,
>                AUTHORITY["EPSG","7022"]],
>            AUTHORITY["EPSG","6265"]],
>        PRIMEM["Greenwich",0],
>        UNIT["degree",0.0174532925199433],
>        AUTHORITY["EPSG","4265"]],
>    PROJECTION["Transverse_Mercator"],
>    PARAMETER["latitude_of_origin",0],
>    PARAMETER["central_meridian",9],
>    PARAMETER["scale_factor",0.9996],
>    PARAMETER["false_easting",1500000],
>    PARAMETER["false_northing",0],
>    UNIT["metre",1,
>        AUTHORITY["EPSG","9001"]],
>    AUTHORITY["EPSG","3003"]]
>Origin = (1554747.231034494200000,4924790.769999999600000)
>Pixel Size = (100.000000000000000,-100.000000000000000)
>Metadata:
>  AREA_OR_POINT=Area
>Image Structure Metadata:
>  INTERLEAVE=BAND
>Corner Coordinates:
>Upper Left  ( 1554747.231, 4924790.770) (  9d41'17.95"E, 44d28'24.73"N)
>Lower Left  ( 1554747.231, 4678290.770) (  9d39'49.22"E, 42d15'14.92"N)
>Upper Right ( 1771747.231, 4924790.770) ( 12d24'49.32"E, 44d25'28.44"N)
>Lower Right ( 1771747.231, 4678290.770) ( 12d17'30.22"E, 42d12'31.70"N)
>Center      ( 1663247.231, 4801540.770) ( 11d 0'50.84"E, 43d20'53.55"N)
>Band 1 Block=2170x1 Type=Float32, ColorInterp=Gray
>  Min=-3.876 Max=2051.503
>  Minimum=-3.876, Maximum=2051.503, Mean=152.789, StdDev=265.873
>  NoData Value=0
>  Metadata:
>    STATISTICS_MINIMUM=-3.8761155605316
>    STATISTICS_MAXIMUM=2051.5034179688
>    STATISTICS_MEAN=152.78946158147
>    STATISTICS_STDDEV=265.87340110007
>
>
>As you can see the CRS is correctly defined, and the other metadata are
>correct.
>OTFR works fine, the raster is correctly reprojected on the 23032
>reference.
>No tfw or aux files in the same folder....
>
>It's making me crazy!
>giovanni
>
>
>2011/10/25 Richard Duivenvoorde <rdmailings at duif.net>
>
>On 2011-10-25 19:04, G. Allegri wrote:
>> Here it is the GCP list picture: http://bit.ly/suh5UL
>> (I wonder why ths srcY coordinates are shown as negative values)
>
>
>What is projection of your raster, is it really epsg:3003 (to be tested
>with 'gdalinfo yourraster'.)
>
>Is there maybe a tfw file hanging around which determines another extent
>four your source raster? If seen this behaviour recently while using the
>plugin.
>
>Try to set your tiff aside from other files, create a fresh epsg:23032
>project with 'on the fly' and try again?
>
>Hope this helps.
>
>Regards,
>
>Richard Duivenvoorde
>
>
>
>
>


Faculty of Geo-Information Science and Earth Observation (ITC)
University of Twente
Chamber of Commerce: 501305360000

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