[Qgis-user] Offline background map for large regions

[abru345 at gmx.de]

Hi Greg,

thank you for all these valuable hints.

 > I have set this up in a way that will work offline (although that wasn't
 > my intent):
 >
 >    - osm file from geofabrik as pbf
 >    - postgis/postgresql
 >    - osm2pgsql toload
 >    - A style to render the map:
 >        https://github.com/yannos/Beautiful_OSM_in_QGIS/


This looks very interesting and I definitively will give it a try
tomorrow. Let's see how far I can get.

Andreas





Am 10.07.22 um 13:03 schrieb Greg Troxel via Qgis-user:
>
> Andreas via Qgis-user <qgis-user at lists.osgeo.org> writes:
>
>> Currently I have an older core i7 with 8 GB RAM running QGIS Desktop
>> 3.10 on Linux Mint 20.3, which I know is already obsolete but it's in
>> the repositories of this most recent Linux Mint LTS version, and I need
>> a stable system that does not break due to a library update etc.
>
> For reference I'm using a 2014 desktop, i7, 24G of RAM, qgis 3.22.8.
> Your hardware seems ok, but probably you can find a way to have 3.22 as
> a build independent from your out-of-date base system.
>
>> [wanting to have basemap for a very large area available offline]
>
> A few points:
>
>    - Tile services generally have usage rules, especially free ones.
>      Bulk downloading from openstreetmap.org is considered abuse, so
>      don't try that.
>
>    - Pre-downloading tiles is not going to work for continent-scale
>      basemap.  So you should be looking at vector data.
>
>    - Licensing is an issue for most sources other then openstreetmap
>      (besides some national-scale data in some countries).
>
> Therefore, you should be looking at OSM vector data.
>
>
> I have set this up in a way that will work offline (although that wasn't
> my intent):
>
>    - osm file from geofabrik as pbf
>    - postgis/postgresql
>    - osm2pgsql toload
>    - A style to render the map:
>        https://github.com/yannos/Beautiful_OSM_in_QGIS/
>
> This works well enough.  I did it so I could add things not in mapnik,
> and eventually I want to adjust rendering of many things, to produce
> printed maps of conservation areas.  But it works offline.  It was not
> really that hard, if you are used to postgresql.
>
>
> A completely different approach is to set up mapnik to render tiles on
> your laptop, with the same datain postgis (perhaps in the same form,
> perhaps not) and running tile generation as you need it.  From the qgis
> perspective the map is online but the other half is on your computer so
> no network required.
>
>
>
>
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