[QGIS-Developer] Proj 7 auto grid download

Andreas Neumann a.neumann at carto.net
Fri Mar 20 01:21:00 PDT 2020

Hi, Jürgen,

Thanks for explaining the situation. 500MB is definitely too large and 
it would be useless data for most users.

Might it be an option to store grid-shift files alternatively also in 
the QGIS user directory - I mean the folder where the user stores his 
settings, plugins, expressions. I agree that many users wouldn't have 
access to the main install directory.

Alternatively, would it be possible to integrate an additional 
step/choice in the standalone installer that would download grid-shift 
files of interest for the user?



Am 20.03.20 um 09:09 schrieb Jürgen E. Fischer:
> Hi Andreas,
> On Fri, 20. Mar 2020 at 08:12:35 +0100, Andreas Neumann wrote:
>> Isn't that potentially a quite large amount of data? Most QGIS users that I
>> know mainly work in one country or region and only need one gridshift file.
>> Of course there are exceptions.
> Yes. proj-dev-data is >500MB (also containing two extra huge grids with of 80
> MB & 73 MB each; the latter for just one state in Germany).
> Putting it in the regular proj directory from within QGIS might also not be
> possible, when a regular user runs QGIS.  And internet access to download is
> also not a given.
> In OSGeo4W this isn't a problem.  Downloading from within the standalone
> installer could be an option, but that kind of ruins the point of having a
> standalone installer.
> Jürgen

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