Section 1. Browse Map backgrounds
The significance of the backgrounds indicated here is that they are available on your GPS in the car without the need to be connected to the internet or to have access to a computer. They do require some skills to get them added to your GPS and aligned to your maps. When you are in Browse Map it is possible to see your present GPS location on the map even with the custom background. It must be stressed that this tool is only available in planning through Browse Map and not during normal navigation. The making of custom backgrounds for Browse Map is explained by TomTom at this link under Map overlays. It is almost never possible to have a road reference on your map on the top left and bottom right, so we have developed an extrapolation formula to align backgrounds to the maps from two good reference points. In some cases you get a map that are not North aligned and we have developed a procedure to rotate such maps until they fit properly. We find the feature whereby you can select the zoom range when the custom background should be displayed very useful.
A site map has been added to the street map above. The result is in the map below. With the site map it is possible to locate a number of amenities at the resort.
This was a convenient way to start building the POI collections at SA POI and it can be used to (at least initially) place your custom POIs according to a tourist map. Fine tuning needs to be done on a computer and transferred back to the GPS.
Google Maps satellite imagery has been added to the street map above. The result is in the map below. With the satellite imagery it is possible to locate visual map detail directly on your GPS. This can assist in a number of applications like farms, business premises, large exhibitions (as shown on Tomtom website) and more.