[OSM-newbies] comparison between gpx results

[Francis Augusto Medeiros]

On 4/3/07, Dirk-Lüder Kreie <osm-list at deelkar.net> wrote:
>
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> Francis Augusto Medeiros schrieb:
> > On 4/3/07, Hakan Tandogan <hakan at gurkensalat.com> wrote:
> >
> >> How much was the offset? This could possibly be an error in the NMEA to
> >> GPX conversion. Does Mobile Trail allow you to save raw NMEA data? If
> so,
> >> you could convert the NMEA data to GPX yourself (with gpsbabel) and
> >> compare the results to the ones from GPS Track.
> >
> > I don't think so - it had KML or GPX, I guess...
>
> If there is a systematical error in your data it might be one of your
> GPS solutions does a ellipsoid conversion. All data entered to OSM
> should reference the WGS84 (GPS) ellipsoid.
>
>
> Dirk-Lüder "Deelkar" Kreie


I do know my GPS uses WGS84, but I'm not aware if the solutions I use make
any conversion.I also don't know if there's any error with the data, or one
is just more precise than the other...

Cheers,

Francis



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Francis Augusto Medeiros
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