[Kde-imaging] Xmas pressies - anyone recommend a good GPS device?

[Caulier Gilles]

Le mardi 12 décembre 2006 22:30, Julien Narboux a écrit :
> Angelo Naselli a écrit :
> > Alle 19:27, martedì 12 dicembre 2006, Julien Narboux ha scritto:
> >>>>> BTW, how does it work?
> >>>>
> >>>> The GPS just keeps a track with GPS position and date/time (very
> >>>> accurate in GPS devices). Then, the software (eg gpssync kipi-plugins
> >>>> or the windows software they provide) uses the date/time in the
> >>>> digital camera (usually not accurate at all) to get the right position
> >>>> :) So, it's independant of the manufacturer (but I don't know anything
> >>>> about their windows software).
> >>>>
> >>>> The only important point is to define precisely the date/time of the
> >>>> digital camera (at least once a week because it's not accurate at
> >>>> all). Somebody suggested to take a picture of a GPS date/time to check
> >>>> the time (if your GPS provides this feature) and I think it's a simple
> >>>> but great idea :)
> >>>
> >>> argh! I thought it was connected to the camera.... that should be
> >>> better... so it works if we remember to swith it on when we're using
> >>> our camera and if the camera is synked with the gps device...
> >>
> >> Note that the sync problem is solved if you know the position of at
> >> least one of the pictures.
> >
> > hmmm I was thinking to the time not the position
>
> I mean If you know the position of at least one picture.
> You can find to which points it corresponds to on the track. If there is
> only one point on the track that matches the position (that means that
> you did not went twice in that place) then you can deduce the time shift
> between the gps device and the camera. Once you have the time shift you
> can deduce the other positions.
>
> Julien

Angelo, like Julien explain, this is the way to use 'Max. Gap Time' and 'Max 
Distance Interpolation Time' oprion in GPS correlator :

http://www.kde-apps.org/content/preview.php?preview=3&id=16061&file1=16061-1.jpg&file2=16061-2.jpg&file3=16061-3.jpg&name=Kipi

Use widgets tooltip for details...

Gilles