[Qgis-user] Modifying raster information?

Agustin Lobo alobolistas at gmail.com
Tue Oct 25 06:47:35 EDT 2011


Yes! That's really a good trick! Thanks,
Agus


2011/10/25 G. Allegri <giohappy at gmail.com>:
> PS: for affine transformation you could also use the world file parameters
> from your georeferenced raster...
>
> 2011/10/25 G. Allegri <giohappy at gmail.com>
>>
>> Hi Agus,
>> AFAIK you cannot do it with a ready to use tool in Qgis. You could use the
>> Raster->Conversion->Formats Conversion frontend to gdal_translate and set
>> the image output dimensions proportional to the pizel size ratio from
>> between your source and the required output pixel size. Otherwise you could
>> manually set the -tr option inside the gdalwarp frontend,
>> Raster->Projection->Reprojection, like this: http://bit.ly/tr3mGU
>> giovanni
>> [2] http://www.gdal.org/gdalwarp.html
>>
>> 2011/10/25 Agustin Lobo <alobolistas at gmail.com>
>>>
>>> Hi!
>>>
>>> We have a raster layer with wrong settings (in particular, wrong pixel
>>> size). Is it possible
>>> to edit these values? We have changed the resolution in R and it would
>>> be possible
>>> with grass also, but could this be done in qgis directly?
>>>
>>> Agus
>>> _______________________________________________
>>> Qgis-user mailing list
>>> Qgis-user at lists.osgeo.org
>>> http://lists.osgeo.org/mailman/listinfo/qgis-user
>>
>
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