Map.AddTile (gb.map)
Function AddTile ( Name As String, Pattern As String [ , Args As Collection, CacheName As String ] ) As _MapTile
 
Adds a new 
_MapTile Layer from remote server or local cache to the current Map
  - 
Name: defines Layer name
 
  - 
Pattern: Tileserver pattern. Depends on Tileserver's API and servers.
 
  - 
Args: Optional defines parameters to submit to TileServer. Depends on Tileserver's API.
 
  - 
CacheName: Optional defines local folder to store Tile (image) files.
 
  
Example
Private hMap as New Map
Public Sub _New()
  hMap.AddTile("OpenStreet", "http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png")
End
The above example retrieves Tiles from OpenStreetMap's servers, where {s} represents the server letter (a, b or c), {z} represents the Tiles's zoom level and {x},{y} are the Tiles coordinates.
TileServers
Check on Google for free TileServers or build your own 
locally. Examples:
If you use any of the above TileServers in your project, check their licenses!!! You've been warned...
See also