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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">I was making some tests with filegdb raster from
</span><a href="https://www.fs.usda.gov/detail/r5/communityforests/?cid=fseprd1009698"><span lang="EN-US">Region 5 - State (usda.gov)</span></a><span lang="EN-US">, file
<a href="https://usfs-public.box.com/shared/static/q96eev9gnsa9hw5bwpmwpmxerbdat0vi.zip">
https://usfs-public.box.com/shared/static/q96eev9gnsa9hw5bwpmwpmxerbdat0vi.zip</a><br>
I converted the data into GeoTIFF, added overviews, and noticed, that the GeoTIFF is very slow to browse with QGIS at small scales. I noticed that it is because gdal_translate creates an external .msk mask band, and gdaladdo does not create overviews for the
mask.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Is is somehow possible to create overviews for the .msk mask either automatically or manually? Or would it create a bad mask that would not match with the corresponding overviews of the data bands?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">-Jukka Rahkonen-<o:p></o:p></span></p>
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