Use Maps Without an Internet Connection
In many instances, VTScada will be running on a computer where internet access is forbidden or severely restricted. You can still use slippy maps by copying the map tiles that you need from a computer that has internet access to the computer that does not. The following method works because each time you view the same map again, VTScada will use the tiles that are in the cache, rather than pulling new copies from the Internet.
Due to licensing restrictions, Trihedral cannot supply map tiles. The files must be downloaded.
- On a computer that has Internet access and a copy of VTScada (possibly a trial version or VTScadaLight), view all map areas that will be required for your application. Ensure that you view all areas at all zoom factors.
- Copy the folder and sub-folders C:\VTScada\Data\SlippyMapTiles[N] (where N matches the map style you are using) to the station that does not have Internet access.
For networked applications, ensure that the map tiles are copied to the primary server. All other workstations and backup servers will copy their tiles from the current primary server rather than downloading the tiles from the Internet. If using the advanced mode of the Edit Server Lists dialog, look for SlippyMapService.
The names of the folders and the map tiles match the area and zoom factor viewed and are not unique to your computer or VTScada in any way.
VTScada will expect the map tiles to use the .PNG file format.
Troubleshooting:
- The steps were followed, but the map is not displayed.
Ensure that the tile images are in the folder "Data\SlippyMapTiles" under your VTScada installation.
Ensure that you are attempting to view an area that matches what was saved in the map tiles.
MobileSlippyMapTilesSource1 - Control the location where map tiles are stores.