[QGIS-Developer] Processing: questions on temporary files

Paolo Cavallini cavallini at faunalia.it
Wed Dec 4 23:53:11 PST 2019


apparently it also has a GDAL driver:
https://gdal.org/drivers/vector/flatgeobuf.html
cheers

Il 05/12/19 08:35, Alexander Bruy ha scritto:
> There is a FlatGeoBuf [0], probably we can use it or at least get some ideas.
> 
> [0] https://github.com/bjornharrtell/flatgeobuf
> 
> чт, 5 груд. 2019 о 09:18 Richard Duivenvoorde <rdmailings at duif.net> пише:
>>
>> On 05/12/2019 01.01, Nyall Dawson wrote:
>>> What's needed/missing is a method for the memory data provider to
>>> detect when a layer is growing too large, and start writing this out
>>> to disk. (Important note: we CAN'T use any of the standard spatial
>>> formats for this (as they are lossy when compared to the memory
>>> provider support), so we'd need to directly serialize the memory layer
>>> features to a custom binary format, with indexing support for rapid
>>> retrieval of features.
>>
>> If I understand correct, FME is also working with (indexed) temp files?
>> I'm not an FME user, so I can bu wrong, but I always wondered what kind
>> of format that is...
>>
>> IF we (as FOSS community) could come up with some (new?) indexed file
>> format, it (besides being a in-between product for transformations) also
>> a potential data exchange format (maybe some zipped version of file+index?)?
>>
>> Anybody into this?
>>
>> Regards,
>>
>> Richard Duivenvoorde
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> 
> 
> 

-- 
Paolo Cavallini - www.faunalia.eu
QGIS.ORG Chair:
http://planet.qgis.org/planet/user/28/tag/qgis%20board/


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