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
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