[maemo-users] Looking for gps logger for n810

From: Andrew Daviel advax at triumf.ca
Date: Tue Jul 28 11:00:51 EEST 2009
On Sat, 11 Apr 2009, Tuukka Tolvanen wrote:

> gpsbabel does filters and conversion, e.g. for a decent gmapsible track, 
> gpsbabel -i gpx -f bleh.gpx -x simplify,error=.05k -o kml,units=m -F bleh.kml

Thanks; found it in Yum.

"gpsbabel -i gpx -f old.gpx -x simplify,error=1m -o gpx -F new.gpx"
seems to work nicely to remove redundant midpoints from Maemo Mapper 
tracks, at least if what I want to do is plot them, e.g. input to
merkaartor for OSM.

> ...now I'm reminded I have a "lag" filter patch sitting around somewhere that 
> does the acceleration points along a straight line thing too, whereas the 
> filters I've found in gpsbabel only deal with the shape of the track. Should 
> dig that up...

For tagging photos I'd want to preserve the time information (and maybe 
in general, elevation too), i.e. only remove midpoints if they can be 
reconstructed by linear interpolation. Is that what you mean ?

Andrew Daviel, TRIUMF, Canada
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