[OSM-newbies] GPX uploaded has problem

Ed Loach ed at loach.me.uk
Tue Mar 10 08:49:53 GMT 2009


H.S.Rai wrote:

> It says:
> 
> "loaded successfully with 6 out of a possible 1006 points. Of
> the
> failed points, 1000 lacked <time>"

I've downloaded the trace you mentioned in the previous email and
the message is correct. There are only 6 points in there with times
against them. 

The file begins with a lot of waypoints where the date and time
appears, but as text in the description field. It is then followed
by a lot of trackpoints which have no date or time, and then in a
section right at the end called ACTIVE LOG are 6 points with dates
and times.
 
> How to solve it?

The gpx file needs timestamps adding. I'm sure I've read somewhere
about utilities that support this. I've just tried downloading
Viking
http://sourceforge.net/projects/viking/
and already had EasyGPS. If EasyGPS can do it I can't see how.

If you load the gpx file in either of Viking or EasyGPS it shows it
contains three tracks (07-MAR-09, 08-MAR-09 and ACTIVE LOG) as well
as the waypoints.

You don't mention what GPS unit you are using. There is a blog post
here:
http://notions.okuda.ca/geotagging/selecting-a-gps/
about someone using an Etrex Legend who saved tracklogs to a storage
location but that stripped the times. He added them back manually,
which you probably don't want to do for 1000 points.

I've tried Google for 'gpx "insert timestamps"' but only find some
posts on this and talk list saying that inserting times is easy, but
not how to do it. But you need to somehow restore the missing
timestamps (they don't have to be accurate, but do need to be
increasing - I would suggest still using the correct date as per the
track names mentioned above).

Ed







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