[talk-au] GPS accuracy

[Ben Johnson]

That is absolutely fantastic - cant wait to see it. BJ

Sent from my iPhone

On 21/09/2012, at 12:20, Russell Edwards <russell at edwds.net> wrote:

> Hi all,
> 
> On this topic -- for what it's worth I have written a JOSM plugin to help with GPS accuracy in the case of having multiple tracks covering the same . You can highlight a set of GPX tracks along a straight path (or taken from a fixed position) and it will a) average them all to find their geometric centre and b) find the direction of maximum variation, to find the likely direction of the path along which they were recorded.
> 
> I hope to have it available within the next week or two. You should get an accuracy improvement factor of equal to or greater than the square root of the number of tracks.  When you have dozens or hundreds of tracks on the same paths, as I do (logs from my runs around town), then it should be a great help in pinning down any offset in the imagery (and potentially, rotation, too).
> 
> Russell
> 
> 
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