[Qgis-developer] Creating large datasets with PyQGIS

Matthias Kuhn matthias at opengis.ch
Tue Mar 24 23:22:02 PDT 2015


Did you have a look at spatialite?

It is a portable database format like dbf, has good support by qgis,
supports indexing...

Best
Matthias

On 03/24/2015 07:49 PM, Pedro Camargo wrote:
> Hi,
>        I am currently working with some large geographic files (~130Gb
> divided in thousands of files) and I need to output the result of the
> analysis in some sort of data format, which cannot be a relational
> database (because of the people that will be using this processing
> framework in the future).
>
>        Right now I am reading and writing to text files, which is
> EXTREMELY slow.  DBF is not really a good option because its many
> legacy issues, so I was thinking about hdf5 or something of that sort.
>
>     Is there anything in QGIS that would me allow to work with that?
>
>    I am on a Windows environment, so using my pytables installation is
> a pain in the neck.  Any suggestions?
>
>    BTW any advancements on how to install Python packages to QGIS own
> python installation?
>
> Thanks,
>
> Pedro
>
> PS - Sorry for using windows....  ;-)
>
>
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