Re: [Paparazzi-devel] log file UTM to WGS84 convert question

[Andreas Philipp]

Hi Kevin,

the letter for the latitudonal 8-degree band (T, R or S) may be 
calculated after converting UTM to WGS84. It is insignificant for that, 
since the utm_y is always the distance from the equator. For the utm_x 
value where you need the zone number (e.g. 50) this is different since 
it is the distance for the central meridian which depends on the zone. 
The letter describing the latitudonal band is just cosmetics. You can 
determine it after conversion to geographical coordinates:

the letters are "CDEFGHJKLMNPQRSTUVWXX" from 80 deg south in increasing 
order for each 8-deg-band. However there are exceptions over 
Scandinavia. May be better use a tool like:

http://trac.osgeo.org/proj/

linux pakage: proj-bin

Andreas



Am 07.07.2014 03:17, schrieb afishindouban:
> Hi everyone
>
> sorry for bother you, I have a confuse about log file pos covert.
>
> for example one line in a log file could be
>
> 130.5000 3 GPS 3 45628136 437386560 2918 20626 5 -6 1799 368074000 50 28
>
> so the utm_x=45628136 utm_y=437386560 utm_zone=50, but it should say 50T,
> 50R or 50S for I can use UTM2WGS84 convertor. How can I get this information
> by a log file ?
>
> Please help me. thanks a lot.
>
> Kevin
>
>
>
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