[OSM-talk] Trace type

[Ed Avis]

Martin Simon <grenzdebil <at> gmail.com> writes:

>>I would suggest a series of checkboxes when uploading a trace file

>[ ] barometric elevation data

Can't the presence of this data be seen by examining the GPX file to see if
there are <ele> sub-elements inside each <trkpt> element?  The user doesn't
need to specify it manually.

>[ ] no geoid undulation (common on cheap gps mice and mobile phones)

I think it would be better to specify the model of GPS device you used, which
can then be matched against a database of model quirks including such things
as whether it undulates the geoid correctly.  Because 90% of users (even on a
pretty technical site like osm.org) will have no idea what geoid undulation is
or whether their GPS device does it.

-- 
Ed Avis <eda at waniasset.com>