[gdal-dev] GDAL WMTS detecting errors

[Even Rouault]

Le 28/08/2024 à 17:41, Michał Kowalczuk a écrit :
> Yes, but if you use C API function GdalRasterDatasetIO you don’t get 
> error. I noticed this error only in gdal logger. How I can catch this 
> error at runtime in code?
Really? That looks doubtful to me, because I don't see how 
gdal_translate would return in error otherwise, but I may miss some 
subtlety obviously. Can you demonstrate that with a self-contained 
reproducer?
>
>
> W dniu śr., 28.08.2024 o 17:38 Even Rouault 
> <even.rouault at spatialys.com> napisał(a):
>
>
>     Le 28/08/2024 à 17:26, Michał Kowalczuk a écrit :
>>     First produces correct output
>>     /gdal_translate -srcwin 33492026 20550638 8019970 4412002
>>     -outsize 1576 867
>>     "WMTS:https://basemap.nationalmap.gov/arcgis/rest/services/USGSImageryOnly/MapServer/WMTS/1.0.0/WMTSCapabilities.xml,layer=USGSImageryOnly,tilematrixset=GoogleMapsCompatible"
>>     tile_ok.png
>>     /
>>
>>     The following for higher level fails:
>>     /gdal_translate -srcwin 36228140 21140450 191172 105168 -outsize
>>     1576 867
>>     "WMTS:https://basemap.nationalmap.gov/arcgis/rest/services/USGSImageryOnly/MapServer/WMTS/1.0.0/WMTSCapabilities.xml,layer=USGSImageryOnly,tilematrixset=GoogleMapsCompatible"
>>     tile_error.png/
>
>     /yes, and ? gdal_translate returns in error as expected due to the
>     missing tiles. If you want HTTP 400 to be silently ignored, you
>     can do:/
>
>     /gdal_translate
>     "WMTS:https://basemap.nationalmap.gov/arcgis/rest/services/USGSImageryOnly/MapServer/WMTS/1.0.0/WMTSCapabilities.xml,layer=USGSImageryOnly,tilematrixset=GoogleMapsCompatible"
>     tmp.wmts -of wmts/
>
>     /and edit tmp.wtms to add 400 in <ZeroBlockHttpCodes>
>     /
>
>>
>>
>>
>>     śr., 28 sie 2024 o 17:07 Even Rouault
>>     <even.rouault at spatialys.com> napisał(a):
>>
>>         If you could provide a gdal_translate command line
>>         reproducing the issue (likely using -srcwin + -outsize or
>>         -srcwin + -ovr to select the appropriate tile), that would
>>         make investigation easier
>>
>>         Le 28/08/2024 à 16:52, Michał Kowalczuk via gdal-dev a écrit :
>>>         Dear GDAL friends,
>>>         any thoughts on this issue?
>>>
>>>         Regards,
>>>         Michał
>>>
>>>         wt., 27 sie 2024 o 17:40 Michał Kowalczuk
>>>         <michkowalczuk at gmail.com> napisał(a):
>>>
>>>             Hi!
>>>             I'm wondering if the last issue 10348 was fully solved.
>>>             Try use the following WMTS server and to zoom to level
>>>             9-10, e.g. small island in the Mediterranean
>>>
>>>             https://basemap.nationalmap.gov/arcgis/rest/services/USGSImageryOnly/MapServer/WMTS/1.0.0/WMTSCapabilities.xml
>>>             <https://basemap.nationalmap.gov/arcgis/rest/services/USGSImageryOnly/MapServer/WMTS/1.0.0/WMTSCapabilities.xml>
>>>
>>>             For a sample tile
>>>
>>>             https://basemap.nationalmap.gov/arcgis/rest/services/USGSImageryOnly/MapServer/WMTS/tile/1.0.0/USGSImageryOnly/default/GoogleMapsCompatible/10/392/514
>>>
>>>             arcgis server returns error code 400.
>>>
>>>
>>>             GDALRasterIO passes so I do not know if there was an
>>>             error inside. Only logger gives some information, but
>>>             how to detect such a situation?
>>>
>>>             A sample logger file attached
>>>
>>>
>>>             Kind regards,
>>>             Michał
>>>
>>>
>>>         _______________________________________________
>>>         gdal-dev mailing list
>>>         gdal-dev at lists.osgeo.org
>>>         https://lists.osgeo.org/mailman/listinfo/gdal-dev
>>
>>         -- 
>>         http://www.spatialys.com
>>         My software is free, but my time generally not.
>>
>     -- 
>     http://www.spatialys.com
>     My software is free, but my time generally not.
>
-- 
http://www.spatialys.com
My software is free, but my time generally not.
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