[QGIS-Developer] [Qgis-user] HDF Bug [Was: Raster formats in Qgis 3.4]

[Alex M]

Jorge,

Thanks for testing, after your note I tried on another machine 3.4.2 and
it works. However my original test machine did get the 3.4.2 update and
is still broken.

Both machines are Ubuntu 16.04, QGIS 3.2.4, GDAL 2.2.2
qgis.org + ubuntugis unstable repos

The only difference is the broken one is a chroot env, and not a full
system install. But to me that should be cleaner.

I'm going to try and find additional systems, maybe even windows and
test some more. If others on list can try that would be helpful too.

Thanks,
Alex

On 11/28/18 13:41, Jorge Gustavo Rocha wrote:
> Hi Alex,
> 
> Thanks for the example. I was able to read it without any problem (in
> current QGIS master version).
> 
> I'm still using GDAL 2.2.3.
> 
> You can see the dialog at
> https://gist.github.com/jgrocha/347e8fee0828d3c3176ed1644d76f897
> 
> I didn't trace the fix, but the problem is already solved (I think).
> 
> Regards,
> 
> Jorge Gustavo
> 
> Às 18:30 de 28/11/18, Alex M escreveu:
>> On Qgis-user an issue was reported with loading HDF5 files in QGIS 3.4
>> no Windows 10.
>>
>> I was able to confirm that HDF5 files fail in QGIS 3.4.1, on Linux also.
>> Not just the user's file but file I also have. In both cases the files
>> work fine in QGIS 2.18.
>>
>> This appears to be a regression related to subdatasets (sublayers). No
>> dialog comes up asking the user which subdataset to load, and hence the
>> load fails with a Provider is not Valid message.
>>
>> Only bug info I can find was an old patch that solved this 7 years ago:
>> https://issues.qgis.org/issues/5041
>>
>> Here's a MODIS image in HDF5 for people to test with.
>> https://drive.google.com/open?id=1hQEi3cRdVRlxih06nbo0gygAvJE08ft7
>>
>> A secondary, minor issue, the Browser doesn't see the file if it has an
>> extension beyond .hdf, in this the case .h5 was what the user supplied.
>>
>> Thanks,
>> Alex
>>
>> On 11/27/18 10:26, Alex M wrote:
>>> Yes, please share with the group.
>>>
>>> Thanks,
>>> Alex
>>>
>>> On 11/27/18 10:20, Anabel Lamaro wrote:
>>>>  Thank you very much for your answer. I use Windows 10 and I have just
>>>> installed version 3.14 Madeira of the Qgis software. I enclose the error
>>>> message in a screenshot. I'll see if I can send you a link to the image.
>>>> Thank you very much Anabel
>>>>
>>>> El mar., 27 nov. 2018 a las 14:33, Alex M (<tech_dev at wildintellect.com>)
>>>> escribió:
>>>>
>>>>> Anabel,
>>>>>
>>>>> QGIS 3 supports all the same formats, however the loading dialog did
>>>>> change.
>>>>> https://www.gdal.org/formats_list.html
>>>>>
>>>>> Sometimes there can also be a slight variation in which drivers are
>>>>> included in the gdal install, though that usually only applies to
>>>>> proprietary formats like MrSID and ECW.
>>>>>
>>>>> What operating system are you using, which version of QGIS 3.4.?, and
>>>>> can you send a link with an example file others can test with?
>>>>>
>>>>> Do you get an error message? Please explain more about how it's not
>>>>> working.
>>>>>
>>>>> Thanks,
>>>>> Alex
>>>>>
>>>>> On 11/27/18 09:17, Anabel Lamaro wrote:
>>>>>> Good afternoon: I need to open some radar satellite images (Cosmo Skymed)
>>>>>> that are in .h5 format (of the hdf type). With the previous version 2.18
>>>>> it
>>>>>> could open without inconvenience. I need help on this. Is there any
>>>>> add-on
>>>>>> to open this type of raster format? Thank you in advance! Anabel
>>>>>>
>>>>>> <
>>>>> http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail
>>>>>>
>>>>>> Libre
>>>>>> de virus. www.avg.com
>>>>>> <
>>>>> http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail
>>>>>>
>>>>>> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>>>>>>
>>>>>>
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