[gdal-dev] projection with EPSG transformation

[Michele Beneventi]

Hi,

thanks very much jean-Claude.
this work fine for me

Best regars
Michele

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Michele Beneventi
GIS Technologist
LAT: 39° 18' 25"; LONG: 08 °33' 20"
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http://www.michelebeneventi.it/
http://it.linkedin.com/in/michelebeneventi


On Thu, Nov 11, 2010 at 1:15 PM, Jean-Claude Repetto <jrepetto at free.fr> wrote:
> Le 11/11/2010 12:26, Michele Beneventi a écrit :
>>
>> Hi list,
>>
>> I have to reproject with "gdalwarp" some tiff file from "+proj=tmerc
>> +lat_0=0.0 +lon_0=9.0 +k=0.9996 +x_0=500000.0 +y_0=0.0 +ellps=WGS84
>> +datum=WGS84 +units=m" (EPSG:32632) to "+proj=tmerc +lat_0=0.0
>> +lon_0=9.0 +k=0.9996 +x_0=1500000.0 +y_0=0.0 +ellps=intl +units=m"
>> (EPSG:3003).
>> To enhance the precision (<  4m) I would like to include in the command
>> line also the information about the local tranformation  (EPSG:1662).
>>
>> How can I include this information by the  command parameters?
>
> Hello,
>
> You must add a +togs84 parameter. Something like :
>
> +proj=tmerc +lat_0=0 +lon_0=9 +k=0.9996 +x_0=1500000 +y_0=0 +ellps=intl
> +towgs84=-104.1,-49.1,-9.9,0.971,-2.917,0.714,-11.68 +units=m +no_defs
>
> (These values are for EPSG:1660, not EPSG:1662).
>
> Jean-Claude
>