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[gpsd-users] Position accuracy of AIS data in gpsd json?

From: Sven Geggus
Subject: [gpsd-users] Position accuracy of AIS data in gpsd json?
Date: Thu, 9 Aug 2018 17:33:37 +0200
User-agent: Mutt/1.5.23 (2014-03-12)


looking at the code, I see, that lat/lon positions are truncated after the
fourth decimal place (%.4f) when running in scaled mode.

Looking at the spec, the accuracy of the messages should be 0.0001’ which
would be 0.0000017°

So whats the rationale behind this behaviour?

Would'nt %.6f be a more correct joice?



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