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<p>Are you also able to load data via the GDAL driver?<br>
If so you could then try to show nodata using raster styling.<br>
<br>
e.g.: make sure that Nodata is not set to transparent: go to the
raster's layer properties -> transparency, untick nodata value.<br>
Then style in symbology settings.<br>
<br>
Best regards,<br>
Aron<br>
<br>
</p>
<div class="moz-cite-prefix">On 04-09-2023 09:57, Richard
Duivenvoorde via QGIS-Developer wrote:<br>
</div>
<blockquote type="cite"
cite="mid:d0c9e8656b46ab29b3d034e2a97fcdb5@duif.net">Hi,
<br>
<br>
My colleague is creating netcdf as output of some other modelling
software, and viewing/styling it in QGIS.
<br>
<br>
In some places the modelling software goes awry and produces NaN's
in de netcdf.
<br>
<br>
Anybody an idea to create a visualisation (in QGIS) to find out
WHICH part/cell's contain a NaN?
<br>
<br>
output of ncdump:
<br>
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0,·
<br>
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, NaNf, NaNf,
NaNf, 0, 0,·
<br>
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0,·
<br>
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0,·
<br>
0, 0, 0, 0, 0, 0,
<br>
<br>
Found:
<a class="moz-txt-link-freetext" href="https://github.com/lutraconsulting/MDAL/blob/master/mdal/frmts/mdal_netcdf.cpp#L100-L102">https://github.com/lutraconsulting/MDAL/blob/master/mdal/frmts/mdal_netcdf.cpp#L100-L102</a><br>
<br>
So apparently in MDAL this becomes
"std::numeric_limits<double>::quiet_NaN"
<br>
<br>
But how to find these in QGIS?
<br>
<br>
Looking in Layer Styling I could use non-numbes (like None, NaN or
whatever) in the inputs.
<br>
Same in Mesh calculator.
<br>
<br>
Any idea appreciated!
<br>
<br>
Regards,
<br>
<br>
Richard Duivenvoorde
<br>
<br>
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</blockquote>
<div class="moz-signature">-- <br>
<title>Email Signature</title>
<meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
Kind Regards,<br>
<br>
Aron Gergely<br>
+31 (0) 6 38 70 97 66<br>
<br>
<b>Rasterra</b> | <ahref="https: www.rasterra.nl"=""><a class="moz-txt-link-abbreviated" href="http://www.rasterra.nl">www.rasterra.nl</a><a><br>
</a></ahref="https:></div>
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