This is just another try to upgrade gpsapp!

From the discussions here I learned that weak map data is the key issue preventing gpsapp to improve substantially. As I live in Germany it is not useable for me right now.

The best map data found so far seems to be from Teleatlas but several tries to cope with this data have not been successful. But Teleatlas should be the preferred map source, in the best case stored on the hdd with the possibility to calculate routes on the road.

Now I found an interesting website:
http://www.ertico.com/links/gdf/gdf.htm

Here you find the specifications on the GDF map data format which is used by Teleatlas together with some sample files and explanations.

Additionally I found a Linux project on car navigation and some interesting links on this site:
http://www.geocities.com/linuxcar/GPS_car_Nav_EN.html

Probably some code of this project can be reused for the gpsapp.

The third thing I found is a dissertation on GPS, which is only available in German but contains some interesting information:
www.geod.uni-bonn.de/geowoche/sessions/2/Czommer.pdf

With this information is there anybody out there who can (and wants to) develop the actual gpsapp to use Teleatlas map data? (as I’m not famous in coding)

Juergen