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<p style="margin: 0 0 1em 0; color: black; font-family: sans-serif;">On
November 20, 2017 11:45:57 AM Veronica Andreo <veroandreo@gmail.com>
wrote:</p>
<p style="margin: 0 0 1em 0; color: black; font-family: sans-serif;">>
2017-11-19 22:08 GMT+01:00 Veronica Andreo <veroandreo@gmail.com>:<br>
><br>
>> Hi Markus,<br>
>><br>
>> > The issue is the following: I apply a mask, then I do some
processing, I<br>
>>> remove the mask and when I display the resulting map, all the
pixels were<br>
>>> processed. I would expect that those pixels that I masked were
treated as<br>
>>> NULL and not considered exactly as the message says:<br>
>>><br>
>> ><br>
>>> >
"All subsequent raster operations will be limited to the MASK area.<br>
>>> Removing<br>
>>> > or renaming raster map named 'MASK' will restore raster
operations to<br>
>>> > normal."<br>
>>><br>
>>> A MASK affects only reading raster data, not writing raster
data.<br>
>>> Therefore r.mapcalc "test = 1" will always produce a map
without NULL cells.<br>
>>><br>
>><br>
>> Got it! That r.mapcalc expression was not reading any map. If I do
for<br>
>> example<br>
>><br>
>> r.mapcalc expression="elev1=elevation + 1"<br>
>><br>
>> and then remove the mask, it does work as I would have expected.<br>
>><br>
>> IMHO, the message is confusing then... not "all" subsequent raster<br>
>> operations are limited to the mask, only if you read a map...<br>
>> What about a mask also for writing raster data in GRASS 8 ? :))<br>
>><br>
><br>
> I have added it here: <a
href="https://trac.osgeo.org/grass/wiki/Grass8Planning">https://trac.osgeo.org/grass/wiki/Grass8Planning</a><br>
> Maybe someone else thinks this would be useful :)</p>
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<p style="margin: 0 0 1em 0; color: black;">+1<br>
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<p style="margin: 0 0 1em 0; color: black; font-family: sans-serif;"><br>
><br>
> Vero<br>
><br>
><br>
><br>
> ----------<br>
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<p style="margin: 0 0 1em 0; color: black;">______________________<br>
Send from my mobile<br>
Excuse my brevity<br>
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