[gdal-dev] Projection for OSGB36

Smart, Gary Gary.Smart at Goodrich.com
Thu Jan 28 06:39:17 EST 2010


> -----Original Message-----
> From: fwarmerdam at gmail.com [mailto:fwarmerdam at gmail.com] On Behalf Of
> Frank Warmerdam
> Sent: 28 January 2010 02:36
> To: Smart, Gary
> Cc: gdal-dev at lists.osgeo.org
> Subject: Re: [gdal-dev] Projection for OSGB36
> 
> On Wed, Jan 27, 2010 at 7:20 PM, Smart, Gary <Gary.Smart at goodrich.com>
> wrote:
> > I have a series of OS map TIF files with associated tfw files.  However,
> the
> > tif files contain no information about the projection.  I understand
> that
> > these files are using OSGB36 AIRY1830
> >
> >
> >
> > Can anyone tell me the precise text specification I need to be able to
> set
> > up this projection.
> >
> >
> >
> > An example tfw file is:
> >
> > 2.5
> >
> > 0
> >
> > 0
> >
> > -2.5
> >
> > 215000
> >
> > 254000
> 
> Gary,
> 
> I would suggest importFromEPSG() and using the
> code 27700 which is OSGB 1936 / British National Grid.
> 
> Good luck,
> --

Thanks for that - ALL SORTED!!! 
Regards, Gary


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