For CartoMobile, the Base Map is the portion of the map that is visible behind all of the layers. There can only be a single Base Map active at a time, but a given Map may have any number of Base Map options available to it, including server-based (WMS or OpenStreetMap-style) and stored on the device (using a wide variety of formats). Once added to a Map, CartoMobile displays the Base Maps in the gear menu directly below the Overlays list and it can be toggled at any time.
CartoMobile contains a variety of different Base Maps that are available through our mapping partner at MapBox. These include:
Default MapBox tiles
Topographical
Satellite Imagery
The Base Maps can be adjusted by editing the Default Base Map and changing the Variant.
Adjusting the Default Base Map
Choose from the menu to bring up the Change Map window
Tap the button
For all Local Maps, you will now see the blue chevron button (it looks like a >) on the right, providing the edit function for that map
Locate the Map you want to edit and tap the blue chevron.
The Map Editor will slide into view
Scroll down to the Base Maps section and locate the default base map
Tap on the blue chevron or the circle-i button to reveal the settings
The Base Map editor will slide into view
Adjust the tile source with the selector
Tap to finish your base map change
The Map Editor will slide back into view
Tap to commit your changes to the Map
The Map Editor will slide out, showing the Map list in edit mode
Tap to exit Map editing mode
Tap on your Map to resume work