[gdal-dev] Re: gdal-dev Digest, Vol 68, Issue 56

[Eli Adam]

Gary, 
      I don't know that projection or the specifics with your tfw.  This website might help you research the projection and get the proper parameters.  I'm not sure if this is the projection that you are after but it is similar.
http://spatialreference.org/ref/epsg/7405/

Regards, Eli

   3. Projection for OSGB36 (Smart, Gary)

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Message: 3
Date: Wed, 27 Jan 2010 11:20:45 -0000
From: "Smart, Gary" <Gary.Smart at goodrich.com>
Subject: [gdal-dev] Projection for OSGB36
To: <gdal-dev at lists.osgeo.org>
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	<F52876411F027A4FA646577165F65C1617875B at NHC2EX13.goodrich.root.local>
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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 

 

I tried to importFromWkt with the string from the gdal/data/ecw_cs.wkt
but this did not seem to work.  I don't believe that OSGB36 is one of
the WellKnownGeogCS either.

 

Gary

 

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