[OSM-newbies] Data layer doesn't look like track shape

[Andy Robinson]

On 22/04/2008, Anne Wilson <cannewilson at googlemail.com> wrote:
> On Monday 21 April 2008 23:45:54 Andy Robinson (blackadder) wrote:
>  > Anne Wilson wrote:
>  > >Sent: 21 April 2008 9:53 PM
>  > >To: newbies at openstreetmap.org
>  > >Subject: Re: [OSM-newbies] Data layer doesn't look like track shape
>  > >
>  > >On Monday 21 April 2008 21:25:00 Christoph Eckert wrote:
>  > >> Hi,
>  > >>
>  > >> > I've opened track1 and track1-waypoints in josm, but when I convert
>  > >> > track1 to a data layer it looks like a child's scribble, joining the
>  > >
>  > >dots
>  > >
>  > >> > of a grid - long, zig-zags that bear no relationship to the walk I
>  > >> > did. What's wrong?
>  > >>
>  > >> no clue. Can you upload the track somewhere and provide a link?
>  > >
>  > >http://www.lydgate.org/images/TrackPurged.gpx
>  > >
>  > >> BTW: Tracks first should get purged before converting them. gpsbabel (or
>  > >
>  > >a
>  > >
>  > >> GUI for it like gebabbel.sf.net) can do this for you. Try
>  > >> gpsbabel -t
>  > >> -i gpx -f TrackOriginal.gpx
>  > >> -x simplify,error=0.001k
>  > >> -o gpx -F TrackPurged.gpx
>  > >>
>  > >> Best regards,
>  > >
>  > >There doesn't look to be much info there, considering I was walking for 32
>  > >minutes.
>  >
>  > Ann,
>  >
>  > Can you confirm what you have the tracklog interval set at. If its not set
>  > to 1 second interval then do so and take a walk around the block (after
>  > getting a good fix). Then for a small walk like this don't try to convert
>  > the GPX to a data layer, instead draw over the top to the alignment that
>  > looks right. Walking usually gives jagged traces, cycling/driving gives
>  > better results in that respect.
>  >
>
> Hi, Andy.  I'm fairly sure that the fault is mine.  I think I only downloaded
>  the minute or two when I was trying to remember how to turn off recording :-)
>  I've saved the whole log now.  I have to be out most of today, so it may be
>  tomorrow before I get to it, but I'm betting that the output will be a great
>  deal larger.  I'll let you know how it goes.
>

I'm forgetting which etrex you brought. Normally though you should not
download the "saved" track as it doesn't have the timestamps. Download
the active contents of the GPS memory is what you need. This remains
in memory even when the GPS is turned off.

Andy


>
>  Anne
>
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-- 
Andy Robinson