cursor position is not equal to the real position

[antenna]

The cursor position lags always behind the real position which can be quite confusing.

Does it help to update the position more often or could there be some kind of projection depending on the current speed to set the cursor approximately to the real position?

[korrosa]

Hi antenna!

Just in case you haven't seen it in the logs, dandor/tegzed has a theory as to why this might be. ​http://irclogs.navit.ie/%23navit-2011-06-10.log

In essence, find the vehicle_gpsd.c file (vehicle/gpsd/vehicle_gpsd.c) and modify line 224

gps_stream(priv->gps, WATCH_ENABLE|WATCH_NMEA|WATCH_JSON, NULL);

by removing the WATCH_NMEA string:

gps_stream(priv->gps, WATCH_ENABLE|WATCH_JSON, NULL);

I haven't tried it yet, but let us know if this works for you!

Note: This will disable nmea logging...

[robin seidel]

If I understand this correctly you can only change this if you compile the code afterwards (as I didn't find a file name called vehicle_gpsd.c with my standart ipk installation of navit on the freerunner). As I also experience this lag of position it would be great if the WATCH_NMEA could be removed in the standard edition, for people like me, who are not capable of building their own compilation change. Maybe two navit versions could be published.

[korrosa]

Patched in r4568.

​http://navit.svn.sourceforge.net/navit/?rev=4568&view=rev

robin: As this change is in the svn trunk, you will still need to compile for the device yourself. Sorry!

[korrosa]

Please also check lag attribute in the <vehicle ... > tag: ​http://wiki.navit-project.org/index.php/Configuring_Navit/Full_list_of_options