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Satellite

publié le , mis à jour
Avatar Codeberg de yoyo34yoyo34

Now that Maptiler is no longer in use, the question arises as to which satellite layer can be used. The IGN layer is only for France and is therefore not suitable anymore, as Cartes is going international. Hosting freely available images is too expensive. The best solution would be to use ESRI. The licence is fairly open and allows every OSM editor (of which Cartes is one) to use it, as do other FOSS projects such as Bikerouter, OsmApp, Streetcomplete and MapComplete. The question now is how to implement it. How should national/local satellite layers like IGN be handled?

  1. Avatar Codeberg de laemlaem

    Now that Maptiler is no longer in use

    It is !

    The IGN layer is only for France and is therefore not suitable anymore

    No, it's more complicated than that. IGN has worlwide coverage but for low zoom. Maptiler completes the offer for high zoom.

    IGN's definition in any other zone than France is very low (Sentinel-2) @bristow

    image

    So we designed a custom maplibre protocol (CustomRasterProtocol.ts) to dynamically switch from IGN to MapLibre when necessary, in order to reduce the costs of the paid maplibre subscription, that costs between 30 and 80 with our relatively low user count.

    Expect 1000 €/month bill when we scale :/

  2. Avatar Codeberg de laemlaem

    The best solution would be to use ESRI. The licence is fairly open and allows every OSM editor (of which Cartes is one) to use it, as do other FOSS projects such as Bikerouter, OsmApp, Streetcomplete and MapComplete.

    Are you sure it can be used for non-editing purposes ? Can you share the link to an official source where this is mentioned ? What about precision, is it as good as Maptiler ?

  3. Avatar Codeberg de yoyo34yoyo34

    So you intend to use Maptiler Satellite for high zoom? Cause currently it's not the case.

    What about precision, is it as good as Maptiler?

    Yeah I think so, resolution is < 1 m: The map features Maxar imagery at 0.3m resolution for select metropolitan areas around the world, 0.5m resolution across the United States and parts of Western Europe, and 1m resolution imagery across the rest of the world (Source).

    License is here and it's also described in the OSM Wiki. Based on this license you could freely use the layer because vector data for OSM is created with cartes. However due to OSM Wiki it's anyway free to use if you have less than 1 million tiles/month requests and the app is non-commercial. I guess thats the reason also other non-OSM FOSS projects use it.

    WMTS Link | TMS Link

  4. Avatar Codeberg de laemlaem

    Oouuuuu thanks ! "Key usage restricted - Get your FREE key at https://cloud.maptiler.com/account/keys/"

    Something went wrong.

  5. Avatar Codeberg de laemlaem

    Just deployed with a new key

  6. Avatar Codeberg de laemlaem

    Thanks for the info about the license ! It looks like Esri is US-based, though. That's a problem for our project :/

  7. Avatar Codeberg de laemlaem

    Discussed in another thread : there is not free high-resolution satellite tiles available...

    but ! A NLnet grant should fix this. https://codeberg.org/cartes/web/issues/2072#issuecomment-14020787


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