<div dir="ltr"><div>Hi Joana,</div><div><br></div><div>I think this would be a great addition to QGIS.<br><br></div>Big +1 from me, and thanks for the proposal.<br><br><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Dec 14, 2017 at 1:49 PM, doublebyte <span dir="ltr"><<a href="mailto:joana@doublebyte.net" target="_blank">joana@doublebyte.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br>
<br>
Maybe some of you are aware of the  "geopackage" plugin<br>
<<a href="https://eos.geocat.net/gitlab/joana.simoes/foss4g_gpkg/blob/master/foss4g_gpkg.pdf" rel="noreferrer" target="_blank">https://eos.geocat.net/<wbr>gitlab/joana.simoes/foss4g_<wbr>gpkg/blob/master/foss4g_gpkg.<wbr>pdf</a>><br>
.The initial goal of this plugin was to enable users to save their QGIS<br>
projects, including style and associated resources<br>
 in a extended geopackage -  the qgis geopackage extension<br>
<<a href="https://github.com/pka/qgpkg/blob/master/qgis_geopackage_extension.md" rel="noreferrer" target="_blank">https://github.com/pka/qgpkg/<wbr>blob/master/qgis_geopackage_<wbr>extension.md</a>>   -,<br>
and load it onto another QGIS installation; on this approach, the project is<br>
encoded as qgs, in a database table. Later the plugin was forked to support<br>
a different geopackage exension -  the owc geopackage extension<br>
<<a href="https://github.com/pka/qgpkg/blob/master/owc_geopackage_extension.md" rel="noreferrer" target="_blank">https://github.com/pka/qgpkg/<wbr>blob/master/owc_geopackage_<wbr>extension.md</a>>   - ,<br>
which is standards-based; in this  approach<br>
<<a href="https://www.geocat.net/announcing-the-extended-geopackage-qgis-plugin/" rel="noreferrer" target="_blank">https://www.geocat.net/<wbr>announcing-the-extended-<wbr>geopackage-qgis-plugin/</a>>  ,<br>
the style is encoded as OGC:SLD and the project as OGC:OWS context. The goal<br>
of this approach is to support the migration of GIS projects, as we can<br>
implement this extension in any desktop or server side GIS (e.g.: ArcGIS<br>
Desktop).<br>
<br>
The fork was merged in August this year, and the latest release of the<br>
plugin <<a href="https://plugins.qgis.org/plugins/QgisGeopackage/" rel="noreferrer" target="_blank">https://plugins.qgis.org/<wbr>plugins/QgisGeopackage/</a>>   already contains<br>
both extensions, covering both use cases of porting QGIS projects and<br>
migrating GIS projects. Recently, it was added  support in the core to the<br>
"qgis geopackage extension"<br>
<<a href="https://github.com/qgis/QGIS/blob/master/src/providers/ogr/qgsogrprovider.cpp#L762" rel="noreferrer" target="_blank">https://github.com/qgis/QGIS/<wbr>blob/master/src/providers/ogr/<wbr>qgsogrprovider.cpp#L762</a>><br>
, in the qgsogrprovider class. This means that if a user loads a geopackage<br>
which was encoded using the "qgis geopackage extension", it will<br>
automatically load the QGIS project from it. We think that it makes sense to<br>
also add the  "ows geopackage extension" to the core; in that case, users<br>
could load projects exported from other GIS software seamlessly, without<br>
having to load the plugin. The mechanism would be very similar to what was<br>
already implemented for the  "qgis geopackage extension".<br>
<br>
Before preparing any Pull Request, we would like to understand first what is<br>
the general feeling of the community about this feature; is this something<br>
which seems useful and interesting to add to the QGIS core? If yes, we would<br>
also appreciate any comments regarding any details the implementation.<br>
<br>
Looking forward to hearing your feedback :-)<br>
<br>
                                     Joana<br>
<br>
<br>
<br>
--<br>
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