topic Re: Minimal offline map with gray background in Qt Maps SDK Questions

Minimal offline map with gray background

FatmaAkdemir — Wed, 19 Mar 2025 11:55:09 GMT

I need a gray background map (without tiles or tile package) on a PC without no internet. Is there a way to download such a map for offline usage? What would be the correct way, do I have to download vector tiles?

Re: Minimal offline map with gray background

MarkBockenhauer — Wed, 19 Mar 2025 13:54:10 GMT

I may need a bit more information to understand what you are looking for. For maps you can set a background color, it does not require any data.

Re: Minimal offline map with gray background

FatmaAkdemir — Thu, 20 Mar 2025 06:21:11 GMT

Hi @MarkBockenhauer , I was asking if there is a way to download BasemapStyle::ArcGISDarkGrayBase map for offline usage, or any other basemap.

Re: Minimal offline map with gray background

MarkBockenhauer — Thu, 20 Mar 2025 15:27:37 GMT

Yes, there are Esri basemap for that purpose. This one for example. https://runtimecoretest.maps.arcgis.com/home/item.html?id=3175cf5b9e9f47f284c7b7d3c8d5b387

Here is a sample that shows how to generate an offline map. https://developers.arcgis.com/qt/cpp/sample-code/generate-offline-map/ This sample which shows the use of overrides shows how to get the desired level of detail. https://developers.arcgis.com/qt/cpp/sample-code/generate-offline-map-overrides/

If you don't actually need map features... just a super lightweight gray background of world extent, I created these in ArcGIS Pro that you can use. They are just 'gray boxes' at world extent (Web Mercator WGS84 auxillary sphere) in .tpkx and .vtpk format.

https://www.arcgis.com/home/item.html?id=2d1bcf22fbb84f53ba16c9305108c4df

https://www.arcgis.com/home/item.html?id=8ef1a7377bd343e2b97f53f3d50d1a36

Re: Minimal offline map with gray background

FatmaAkdemir — Fri, 21 Mar 2025 06:46:42 GMT

Thank you very much @MarkBockenhauer . I downloaded the tile packages you created, and I'll use them.