[gdal-dev] Re: Add GCP's to a file

[Gaige B. Paulsen]

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
> 
> 
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