Hi Martin,

I would suspect a missing datum shift in the grid projection. Probably the map 
is not plain UTM with WGS84 datum.

Oliver

-------- Original-Nachricht --------
> Datum: Sat, 26 Jan 2013 01:00:41 +0000
> Von: Martin Swift <[email protected]>
> An: QLandkarteGT users mailing list <[email protected]>
> Betreff: [Qlandkartegt-users] UTM grid offset

> Hey Oliver,
> 
> A quick question on the grid feature. I was just putting together a
> bunch of UTM gridded maps but they ended up not matching properly on
> the edges. To see this better I overlaid the QLGT grid on top oft the
> map to see how the map grid matched the QLGT grid.
> 
> The odd thing is that there seems to be an offset in the north-south
> direction across all the maps (spanning most of Iceland, crossing the
> boundary of UTM 27 and 28). See attached.
> 
> The maps match well with tracks that I've overlaid on the maps. Any
> chance there is a slight bug in the grid algorithm?
> 
> Cheers,
> Martin
> 
> Ps. The grid feature really comes in handy matching up and fine-tuning
> maps.

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