[OSM-talk] Nwecastle data

[Nick Black]

Hi Calum,

I think the chances are quite high.  The data was probably recorded in
OSGB using the Airy ellipoide.  AFAIK accurate transformation from
OSGB - WGS84 using GDAL (ogr2ogr etc) require a bit of additional
hacking.  If any one has scripts to help the transformation, they
would be much appeciated.

NIck

On 11/26/06, Calum Polwart <gps at wittongilbert.free-online.co.uk> wrote:
> This is fantastic news.
>
> The level of detail in the track logs is fantastic.  Routes which are repeated multiple times like Roundabouts on the A1(M) exits are beautiful and exactly like they look.
>
> HOWEVER, looking at some data I've already uploaded there seems to be a noticeable offset in the data.  I don't know for sure why this would be - but the difference looks similar to the effect seen when a GPS in using OSGB36 as the datum instead of WAG84.
>
> I haven't had a chance to look at in detail yet - but I wondered what the chances are that something like this might have happened?
>
> Calum
>
> On Sat, November 25, 2006 9:06 pm, SteveC wrote:
> > http://www.opengeodata.org/?p=111
> >
> > have fun,
> >
> > SteveC steve at asklater.com http://www.asklater.com/steve/
> >
> > _______________________________________________
> > talk mailing list
> > talk at openstreetmap.org
> > http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
> > --
> > This email has been verified as Virus free
> > Virus Protection and more available at http://www.plus.net
> >
>
>
> --
> Calum Polwart
>
>
> _______________________________________________
> talk mailing list
> talk at openstreetmap.org
> http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
>