Online maps are not stored completely in the device; instead, they are downloaded from the internet as you check the various areas.
The downloaded cells are stored on the device (computer or smartphone), so if you revisit that area, the cells won’t have to be downloaded again. This feature is called “caching”, and is limited by the amount of memory it can occupy (adjustable). When this limit is exceeded, the oldest cells will be overwritten.
Land and the TwoNav app offer several online maps. These maps can be classified based on various criteria:
- Coverage area: they can span the entire world, one country or a specific area.
- Topo/Ortho: there are topographic and orthophoto (aerial images) maps, and even Google-type urban maps.
- Freeware or payware: all the maps are free except those in the French IGN geo-portal.
- See-through or not: some maps display certain information (e.g. paths) but leave the remaining surface transparent so you can see the background that is loaded underneath. Such is the case of Lonvia Hiking and Cycling maps, which show the paths you’ll see marked during your hiking and cycling outings. For example, the red/white marks on GR paths.
Online maps are accessed in Land via the data tree.
Land also offers the option to grab sections of online maps to create local maps that can be loaded into a GPS device that does not have internet (more info).
On the TwoNav app, online maps are accessed through the map list.