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There is also the concept of "Shared local datasets":
<a class="moz-txt-link-freetext" href="https://docs.qfield.org/how-to/outside-layers/?h=local">https://docs.qfield.org/how-to/outside-layers/?h=local</a><br>
It is useful if you need the same dataset (orthophoto/basemap) in
different projects.<br>
<br>
Kind regards <br>
Roland<br>
<br>
<div class="moz-cite-prefix">On 10/14/24 16:00, Saber Razmjooei via
QGIS-User wrote:<br>
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<blockquote type="cite"
cite="mid:CAH=WbRC5S9Jp=HY+zUG6dSsc94ThjGYWaoF4xLGdNV7SSppgFA@mail.gmail.com">
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<div dir="ltr">If you use <a href="http://www.merginmaps.com"
moz-do-not-send="true">www.merginmaps.com</a> QGIS plugin, it
will allow you to download our own vector tiles generated from
OpenStreetMaps using OpenMapTiles schema for offline usage.
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<div><br>
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<div>Kind regards</div>
<div>Saber</div>
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<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Mon, 14 Oct 2024 at 14:59,
Greg Troxel via QGIS-User <<a
href="mailto:qgis-user@lists.osgeo.org"
moz-do-not-send="true" class="moz-txt-link-freetext">qgis-user@lists.osgeo.org</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote"
style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">"Huesmann,
Michaela via QGIS-User" <<a
href="mailto:qgis-user@lists.osgeo.org" target="_blank"
moz-do-not-send="true" class="moz-txt-link-freetext">qgis-user@lists.osgeo.org</a>>
writes:<br>
<br>
> I would like to record data with Qfield using my Android
mobile<br>
> phone. In order not to use too much data volume, the base
maps should<br>
> be downloaded via WiFi beforehand so that they can be
used offline<br>
> outside. However, GPS must be used for orientation during
the mobile<br>
> recording process. My questions about this:<br>
> 1. Which map material for Germany can be used offline as
base map in my qfield project and how can I download it?<br>
> 2. How do I ensure that the offline maps are used outside
and that no download takes place while I navigate with GPS?<br>
<br>
You didn't explain<br>
<br>
- How much data is too much?<br>
<br>
- What happens in terms of data if you just use an OSM
mapnik basemap<br>
+ in particualr, what if you open qfield on wifi and pan
around to<br>
all the places you are going to be, to cause it to fetch
data.<br>
Note that OSM requires that users of its tile service
cache data<br>
for a reasonable period of time (7 days?), and thus
QField should<br>
be caching.<br>
<br>
- What size area you are operating in?<br>
<br>
I mean to ask "are you really sure you have a problem that
needs<br>
solving?"<br>
<br>
It is straigthforward to make a raster image of a small area
and use<br>
that via "copy" in the now-oddly-named "cable" export. (I use
nextcloud<br>
to exchange bits, not an actual cable...)<br>
<br>
Making something that can cover a larger area at varying
resolution<br>
probably involves some sort of tiles-in-sqlite format.<br>
<br>
In general, the only map data that I'm aware of with licensing
that<br>
permits this sort of use is OpenStreetMap, and in the US,
government<br>
data from the federal government and a number of states. (I
have no<br>
<a href="http://knowledge.de" rel="noreferrer" target="_blank"
moz-do-not-send="true">knowledge.de</a>, but I'd expect
similar -- OSM and maybe government.)<br>
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<span class="gmail_signature_prefix">-- </span><br>
<div dir="ltr" class="gmail_signature">
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">Saber Razmjooei<br>
</div>
<div><a href="http://www.lutraconsulting.co.uk"
target="_blank" moz-do-not-send="true">www.lutraconsulting.co.uk</a><br>
<span>+44 (0)7568 129733</span><br>
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<div class="moz-signature">-- <br>
<p><b><span style="font-size:10pt;color:rgb(187,145,55)">Steiner
& Partner Landschaftsarchitektur GmbH</span></b><b><span
style="font-size:10pt"><br>
</span></b><span style="font-size:10pt;color:rgb(127,127,127)">Roland
Berger - Geschäftsführer Stv.<br>
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CH-3600 Thun<br>
Mobile: <a href="tel:+41%2079%20709%2056%2089"
value="+41797095689" target="_blank">+41 79 709 56 89</a><br>
Tel: <a href="tel:+41%2033%20335%2076%2053"
value="+41333357653" target="_blank">+41 33 335 76 53</a><br>
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