[OSM-talk] JOSM update / why does API return GPS points in descending order?
Karl Newman
siliconfiend at gmail.com
Fri Mar 28 20:34:35 GMT 2008
On Fri, Mar 28, 2008 at 12:37 PM, Andy Robinson (blackadder) <
blackadderajr at googlemail.com> wrote:
> Frederik Ramm wrote:
> >Sent: 28 March 2008 5:10 PM
> >To: Raphael Mack
> >Cc: talk at openstreetmap.org
> >Subject: Re: [OSM-talk] JOSM update / why does API return GPS points in
> >descending order?
> >
> >Hi,
> >
> >> mh, I guess this cannot be fixed in josm, since the the server returns
> >the
> >> stored gps points in arbitrary order. I would even suggest not to draw
> >any
> >> direction arrows for gps data from the server.
> >
> >But they can't be too arbitrary since drawing lines in between the
> >points would reveal a completely chaotic picture otherwise. I think
> >David Earl is right about sorting by timestamp since this is what's in
> >the API source:
>
> And since its rare for two people to have the same time period for the
> same
> area by chance it generally works (just back to front). But of course that
> cant be guaranteed, especially if the area is large.
>
> Cheers
>
> Andy
>
>
On the increasingly likely (as our userbase grows) chance that two or more
users upload tracks with overlapping times, would it be possible to do a
"group by" user so that the tracks will be logically clustered? I don't know
the table schema--I'm not even sure if that table has a "user" column.
Karl
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