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[Paparazzi-devel] Re: utm


From: Martin Mueller
Subject: [Paparazzi-devel] Re: utm
Date: Wed, 18 Apr 2007 12:59:05 +0200

Hi Pascal,

thanks for the fast reply!

> UTM coordinates are not used for SRTM: the SRTM files are aligned of 
> geographic (lat, long) coordinates.
> Unfortunately, data are missing for Norway, north of latitude 60° (see 
> for example, 
> http://www.caf.dlr.de/dlr/presse/archiv/sonderseiten/srtm/coverage.htm).
> 
> But, ..., I found another source
> 
>     http://www.viewfinderpanoramas.org/dem3.html
> 
> where the provided P31.zip contains the desired N60E005.hgt  (now 
> available from
> www.recherche.enac.fr/~brisset/N60E005.hgt.bz2 )
 >
> It seems almost correct (well the sea surface is about 15m in the 
> harbour !) and anyway should be enough for
> the GCS.

Thanks! Will get that when back home.

> PS: By the way, some other awfull problems are hidden behind UTM 
> coordinates usage in Paparazzi ...

You can not cross UTM zone borders and not navigate in the "special" "bigger" 
UTM zones in Norway and north?

See you,
Martin

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