[OSM-talk] Hello

Francisco R. Santos frsantos at gmail.com
Thu Sep 13 20:12:54 BST 2007


2007/9/13, Fabrizio Giudici <Fabrizio.Giudici at tidalwave.it>:
>
>
> On Sep 13, 2007, at 13:38 , Raphaël Jacquot wrote:
>
> > Fabrizio Giudici wrote:
> >
> >> PS Also a technical question. My recorded tracks' data are sampled
> >> every 10 seconds - is it acceptable or is it too low?
> >
> > if enough tracks are using the same road, you can use it.
> > with one single person doing one road, depending on the speed, it
> > can be fairly useless :
> >
> > say the person is doing 90km/h, that's 25m/s, or a point every 250m.
> > as long as the road is perfectly straight, it's ok, if it turns,
> > you're screwed
>
> I know - it's the evaluation I did when I decided for those 10secs,
> usually I travel so fast only in highways and they are usually pretty
> straight. But of course in some very tight mountain bends it can be a
> problem. I'll change settings in future - what do you think is a good
> trade-off? And for the current tracks, do you prefer that I upload
> them all the same or would I make you waste time?


>From my experience, I prefer to record 1point/sg and then postprocess the
file with gpsbabel to simplify it wherever it is possible.

--
> Fabrizio Giudici, Ph.D. - Java Architect, Project Manager
> Tidalwave s.a.s. - "We make Java work. Everywhere."
> weblogs.java.net/blog/fabriziogiudici - www.tidalwave.it/blog
> Fabrizio.Giudici at tidalwave.it - mobile: +39 348.150.6941
>
>
>
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