[gdal-dev] GDAL WMTS detecting errors

[Michał Kowalczuk]

Sorry, my bad!
I missed to check output CPL Error from GdalRasterIO 🤦

You mentioned about *ZeroBlockHttpCodes *property. Can I set it
programmatically, as a configuration option?

As always great thank you!

śr., 28 sie 2024 o 17:51 Even Rouault <even.rouault at spatialys.com>
napisał(a):

>
> 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
>> <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
>> <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
>> <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
>>>>
>>>> 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 listgdal-dev at lists.osgeo.orghttps://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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