[QGIS-Developer] Raster calculator turns lowest row of pixels into nodata

Alessandro Pasotti apasotti at gmail.com
Wed Feb 12 05:47:48 PST 2020


Please file a ticket, then add the following information:

- attach offending raster
- attach formula
- check if enabling/disabling OpenCL acceleration makes any difference.




On Tue, Feb 11, 2020 at 1:33 PM Rahkonen Jukka (MML) <
jukka.rahkonen at maanmittauslaitos.fi> wrote:

> Hi,
>
>
>
> None of these does not seem to fit
> https://github.com/qgis/QGIS/issues?utf8=%E2%9C%93&q=is%3Aclosed+is%3Aissue+author%3Ajgrocha+
>
>
>
> I am running rather new master version, rev. 664ba234da
>
>
>
> -Jukka Rahkonen
>
>
>
>
>
> *Lähettäjä:* Luigi Pirelli <luipir at gmail.com>
> *Lähetetty:* tiistai 11. helmikuuta 2020 14.15
> *Vastaanottaja:* Rahkonen Jukka (MML) <jukka.rahkonen at maanmittauslaitos.fi
> >
> *Kopio:* qgis-developer at lists.osgeo.org
> *Aihe:* Re: [QGIS-Developer] Raster calculator turns lowest row of pixels
> into nodata
>
>
>
> che you check master version, AFAIR, alessandro pasotti fixed this basing
> on a issue report by Jorge Rocha
>
>
>
> Luigi Pirelli
>
>
> **************************************************************************************************
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> * GitHub: https://github.com/luipir
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>
> * Hire a team: http://www.qcooperative.net
>
> **************************************************************************************************
>
>
>
>
>
> On Tue, 11 Feb 2020 at 08:41, Rahkonen Jukka (MML) <
> jukka.rahkonen at maanmittauslaitos.fi> wrote:
>
> Hi,
>
>
>
> See
> https://gis.stackexchange.com/questions/349531/qgis-zonal-statistics-and-no-data/349559
>
>
>
> It seems that raster calculator turns the lowest pixel row of the image
> that covers the whole world in EPSG:4326 into nodata with value -3.4e+38
> which gives troubles afterwards. The original image does not have nodata at
> all and all pixels in the lowest row have value 0.
>
>
>
> -Jukka Rahkonen-
>
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-- 
Alessandro Pasotti
w3:   www.itopen.it
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