[QGIS-Developer] [Qgis-developer] Adding default OSM backround maps

Jorge Gustavo Rocha jgr at di.uminho.pt
Tue Jun 6 03:21:44 PDT 2017

Hi Stéphane,

Your suggestion may complement or be an alternative to the default OSM
background maps.

Regarding the implementation of the initial proposal, it is not
difficult and have been done in PR#4352. It is basically one button to
add another layer to the map.

Creating a new vector tile service, provided by QGIS, seems quite more
difficult to me. We need to maintain a mirror of the planet. This means
a lot of resources (hw and ops).

Developing one style is not difficult but one that everybody likes is
much more difficult. We would end up as OSM did, with several styles,
for different users. But if the render is on the client side, there is
no problem to maintain more than one style.

In summary, providing the tile service seems more complicated to me, but
this can be further explored. If you would like to try it, I can help.


Jorge Gustavo

Às 10:57 de 06-06-2017, Stéphane Henriod escreveu:
> Hi all
> jumping (a bit late) on this...
> I realize that this would be much heavier and much more expensive to
> implement but what about developing a "QGIS style" for OSM-based tiles
> (that could, e.g., be hosted on QGIS.org)? That would take care of 3 issues:
>   * "Quality of the cartography": if we are not 100% happy with the
>     default OSM style as a background map, we could come up with a more
>     appropriate style
>   * "Quality of the service":  there is a risk that OSMF once shuts down
>     the service because we generate too much traffic. If "we" host the
>     tiles ourselves, the risks and associated decisions remain in "our"
>     hands
>   * "Frequency of updates": same, if it lies in "our" hands, we can
>     define ourselves what frequency would be appropriate
> I assume that developing a new style is not a huge task (there are
> probably enough people around with the necessary skills) and could be
> achieved either with a "small" budget or with sufficient participation
> of the community. But the long-term maintenance and hosting / serving of
> the tiles is probably an issue of a different magnitude... 
> Would that idea be worth exploring further? Or do you think it is
> completely not realistic ?
> Thanks and cheers
> Stéphane
> Le lundi 1 mai 2017, Paolo Cavallini <cavallini at faunalia.it
> <mailto:cavallini at faunalia.it>> a écrit :
>     Il 30/04/2017 19:28, Jorge Gustavo Rocha ha scritto:
>     > I did a PR [1], very simple. This discussion is now about the best
>     > approach to handle all settings, in all platforms. I'm working on
>     that.
>     FYI, summarized here:
>     https://issues.qgis.org/issues/16493
>     <https://issues.qgis.org/issues/16493>
>     Please add what is missing.
>     Thanks.
>     --
>     Paolo Cavallini - www.faunalia.eu <http://www.faunalia.eu>
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J. Gustavo
Jorge Gustavo Rocha
Departamento de Informática
Universidade do Minho
4710-057 Braga
Tel: +351 253604480
Fax: +351 253604471
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skype: nabocudnosor

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