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> I've never seen this, but at a guess it could mean starting with 0 at
> one pole and counting to 180 at the other.
Yes, that makes sense; thanks!
But this scheme will certainly not be compatible to the distance fomula :-)
Mit freundlichem Gruß / With kind regards
Holger Klawitter
- --
lists <at> klawitter <dot> de
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