[OSM-dev] Sanity check please - ignore GPS-point duplicates intrack data

Joerg Ostertag (OSM Munich/Germany) openstreetmap at ostertag.name
Fri Jun 15 10:34:51 BST 2007

> There is also a method of ensuring that the original GPX file you upload to
> OSM is not over bloated with duplicate point data. I had this problem
> originally with my PDA which spits out two different NMEA sentences with
> the same location data in sequence. I fixed this problem by using gpsbabel
> with the track "merge" function enabled. I do this on the GPX file rather
> than on the original NMEA sentences file as for some reason that appears
> for me to be more reliable. Works a treat.

osmtrackfilter.pl is also doing this kind of filtering on nmea input. But 
directly on the nmea stream because i found this was more reliable.


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