Hi Jochen,
It would be great if we could get more layers available than "just" Google Maps.
I don't know if they can all be integrated but here is a list that often provides images for different library (not always but sometime then do).

- bing.com/maps/
- yandex.com/maps/
- digitalglobe (Maxar)
- Esri/Arcgis


This can be of great help as most satellite images suffer from deformation, shadows, quality, aged (in some area the environnement change a lot faster than in Europ), season (wet vs dry season in tropical area), etc.

OpenTopoMaps would also be a great addition.

Great news, thanks!

Hi Jochen,

Did you ever pushed this any further?

Something that could be (very) interesting is to add OpenTopoMap layer. OpenTopoMap map layer is more useful than GoogleMaps map layer... OpenTopoMap has terrain/hillshade/contours and one of the big advantage is that OpenTopoMap is directly related to OpenStreetMap project and anyone can edit/add some geographical information (very practical for expeditions).

Ich habe im neuesten CRP-Update OpenTopoMap natürlich gleich getestet. Super Sache! Danke Jochen!!

Was mir aufgefallen ist, dass gewisse Geländeflächen (auffälligerweise jeweils die "Schattenlagen") unscharf geblieben sind, auch nach 2 Minuten warten - siehe Screenshot. Diese einfach als Hinweis.

Hi Jochen,

Thanks for implementing this feature. This is great... really! I love it!

As a reminder for everyone, you can become an editor for OpenStreetMap project - OpenTopoMap being a layout of OSM - and that will give you the ability to improve the maps in your caving area(s)... obviously following OSM editor rules, but this is powerful :)


I have one issue but I guess this is because of my (very) low speed Internet... still hook up to the very end of an ADSL line here (they swear : optic fiber is coming... soon!). Anyway, I struggle to get the tiles downloaded.

Also, here is a few extra things that would be great to add if possible :
- Graphical scale
- UTM grid
- True North arrow
- Copyright feature for the survey data. Maybe this could be added in Settings: text box to let the user defines what the data/drawing copyright is.