Hi Hans (&navigation experts),

There are 2 different aspects to think of. route-navigation and route-guidance. The navigation (how do I drive from A to B) seems to be different from route guidance (your GPS receiver tells you where you are, and you are goiing to B).

suppose we have a navigation program. The GPS tells position. What database access routines do we need to tell the rest of the story. I can think of the following

getLocation( GpsPosition, CurrentNavPosition)
NavEvent = ComputeNavRoute( CurrentNavPosition, TargetNavPosition)




BTW there is one more aspect when writing a navigation tool: the availability of data. SDAL format CD's are not very common (due to lack of market penetration. Only Pioneer uses this format), but you can get them. Carin is in the netherlands very common, and easyly to get.
Prices are at the same level.


interested in board computers