Did you get square degrees back?  Project to a meter or feet based projection 
to get a measure more meaningful.  

Cheers,
Tyler

On 2013-05-28, at 7:14 AM, "Federico Jurio" <federicoju...@suremptec.com.ar> 
wrote:



        Dear all, here I am with one question which I'm sure has such a simple 
answer that I already feel embarassed in advance! Here goes anyway... I'm 
trying to calculate the area length on a GeoTIFF file using GetArea() method of 
OGRPolygon class and i'm not sure which is the unit that returns.

        This is the information about the raster dataset

        "GEOGCS[\"WGS 84\",DATUM[\"WGS_1984\",SPHEROID[\"WGS 
84\",6378137,298.2572235630016,AUTHORITY[\"EPSG\",\"7030\"]],AUTHORITY[\"EPSG\",\"6326\"]],PRIMEM[\"Greenwich\",0],UNIT[\"degree\",0.0174532925199433],AUTHORITY[\"EPSG\",\"4326\"]]"

        Thanks for your patience
        

        -- 
        
        Federico Jurio
        
        SUR Emprendimientos Tecnológicos
        

        Perú 345  Piso 5to Oficina "B" (C1067AAG)
        
        Ciudad de Buenos Aires, Argentina
        Tel. +54 (11) 4342-2976/84
        federicoju...@suremptec.com.ar
        www.suremptec.com

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