You should be able to do that using the -a_srs option

-Gaige

On Feb 22, 2010, at 1:48 PM, Kim Besson wrote:

> Thanks Mr Paulsen and Jukka
> 
> Ok I tried  the command and it seemed to work :) Thanks
> 
> By the way, if my image has no Coordinates system and my GCPs corresponds to 
> a certain projection/coordinate system, How I define now the coordinate 
> system in which that data is? 
> 
> Thank you
> 
> 
> 2010/2/22 Gaige B. Paulsen <[email protected]>
> Pixel and line in the description below are actually two different numbers, 
> one representing the pixel (x coordinate) and the line (y coordinate) of the 
> point in the image.
> 
> Hope this helps,
> -Gaige
> 
> 
> On Feb 22, 2010, at 12:31 PM, Kim Besson wrote:
> 
>> >Hi,
>> >Gdal_translation has on option
>> > [-gcp pixel line easting northing [elevation]]*
>> 
>> >I know it works with tiffs but I have not tried it with HDF4. Some working
>> >examples and considerations about this is hidden inside a document
>> >http://www.scangis.org/scangis2007/papers/r3_rahkonen.pdf
>> 
>> Thanks Jukka. Although why does it only requires pixel line? The dataset 
>> that I'm using, Easthing and Northing varies along pixel line. Shouldn't it 
>> be Pixel column and row (or pixel (x,y)?
>> 
>> Thanks
>> Kim
>> 
>> 
>> _______________________________________________
>> gdal-dev mailing list
>> [email protected]
>> http://lists.osgeo.org/mailman/listinfo/gdal-dev
> 
> 

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