[GRASS-user] GPS Track Data Import
mlennert at club.worldonline.be
Sun Feb 4 15:14:43 EST 2007
On Sun, February 4, 2007 17:04, Carl Brown wrote:
> I'm using a USB-connected GPS receiver which outputs NMEA0183.
> Using gpsbabel, I converted the data to GPX format. QGIS handles the
> and projection conversion easily, but that does not get the data into a
> 3D vector layer. I tried gpx2shp -3 followed by v.in.ogr, but v.in.ogr
> create a useable output file.
> The whole process seems cumbersome, since the GPX data is already in an
> parsed, readable format. But v.in.ogr doesn't handle GPX, and apparently
> needs to create a new location because the target location is in UTM, not
> lat-lon, and v.proj won't work on the data until it is in a GRASS file. So
> the current workflow (which isn't working) is:
> gpsbabel -i nmea -o gpx
> gpx2shp -3
> v.in.ogr -z location=...
> v.proj (from LL location to UTM location)
> Is there a better way to import this type of data into GRASS?
> The optimum importation would preserve all of the metadata fields
> available in
> the GPX file; this receiver outputs time, course, speed, type of fix, # of
> satellites in view, hdop, vdop and pdop.
More information about the grass-user