[Qgis-developer] Data Download Framework [was [Qgis-user] SRTM-plug-in?]

[Tom Kralidis]

One option is to have metadata records which clearly articulate direct
/ actionable download links and make these metadata available via CSW.

Then, using MetaSearch, one can query a given CSW, get the metadata
back, display the links and download the data.

There's an existing ticket open in MetaSearch discussing this functionality [1].

I would recommend this as a standards-based option.  Assuming data
links are documented properly in metadata available via CSW, the rest
just works.  MetaSearch would need to be extended to action a download
link to download to disk, load, and son on.

..Tom

[1] https://hub.qgis.org/issues/11733



On Thu, Nov 19, 2015 at 12:31 PM, Alex M <tech_dev at wildintellect.com> wrote:
> Short summary, after brief discussion about if there was a plugin to
> pull SRTM (DEM) data for the canvas (which we never found), we turned to
> discussing the possibility of build a framework for public data
> downloading by canvas extent.
>
> We want to avoid duplication of the same common core functionality, and
> make it easy to plug new data in, and for users to be able to find what
> they're looking for.
>
> Ideally to me this is just an improvement to CSW, WCS and WFS. However
> many such data sets don't exist under services, and are just file based
> downloads.
>
> This email is to gauge interest in co-developing such an option in QGIS.
>
> Ideas welcome and encouraged.
>
> Thanks,
> Alex
>
>
> -------- Forwarded Message --------
> Subject: Re: [Qgis-user] SRTM-plug-in?
> Date: Thu, 19 Nov 2015 09:25:16 -0800
> From: Alex M <tech_dev at wildintellect.com>
> Reply-To: tech at wildintellect.com
> To: Paolo Cavallini <cavallini at faunalia.it>, qgis-user at lists.osgeo.org
>
> On 11/18/2015 10:21 PM, Paolo Cavallini wrote:
>> Il 18/11/2015 19:44, Alex M ha scritto:
>>> On 11/18/2015 06:14 AM, Bernd Vogelgesang wrote:
>>>> Hi,
>>>> there once was a plug-in in the repository, that downloaded SRTM-DEM
>>
>>> Did the plugin do 30m or 90m SRTM?
>>
>> Hi all,
>> agreed, it would be good to have it back. BTW, there is a growing number
>> of plugins dowloading data (e.g. from NASA, from FAO, etc.). it would be
>> good to have a general framework where a single service could be plugged
>> in, instead of developing over and over very similar stuff.
>> Any interested dev?
>> All the best.
>>
>
> A framework for the common parts would be nice, or an easily clone-able
> basic plugin that just needs a specialized function to each service.
>
> Of course, this is kind of the point of CSW, WCS and WFS standards. And
> we really should encourage the use of standards.
>
> This idea is similar to the getData function of the Raster package in R:
> http://www.rdocumentation.org/packages/raster/functions/getData
>
> Which does include the 90m SRTM already processed (CGIAR version
> http://srtm.csi.cgiar.org/)
>
> I'd be interested in moving this discussion to the developer list and
> participating. I'm involved with the management of the data for the
> above mentioned R function.
>
> Thanks,
> Alex
> _______________________________________________
> Qgis-user mailing list
> Qgis-user at lists.osgeo.org
> List info: http://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user
>
> _______________________________________________
> Qgis-developer mailing list
> Qgis-developer at lists.osgeo.org
> List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer
> Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer