I'm trying to geo-reference a .tif image, but the corner coordinates don't change. I used gimp to get the pixel and lat/lng of 4 points on the image. I converted the lat/lng to the desired coordinates, then used this command: gdal_translate \ -a_srs epsg:3395 \ -gcp 1954 1085 -8682920.2818 4766363.8392 0 \ -gcp 1954 4581 -8682920.2818 4623698.8898 0 \ -gcp 7376 1085 -8460281.3002 4766363.8392 0 \ -gcp 7376 4581 -8460281.3002 4623698.8898 0 \ bw_unref.tif \ bw_ref.tif
That command produced an output file, but gdalinfo shows the corner coordinates are still in pixels: Corner Coordinates: Upper Left ( 0.0, 0.0) Lower Left ( 0.0, 5764.0) Upper Right ( 7995.0, 0.0) Lower Right ( 7995.0, 5764.0) not the easting/northing that I expect; other files that are geo-referenced have coordinates like this:: Corner Coordinates: Upper Left (-8710773.534, 4802386.689) ( 78d15'0.76"W, 39d45'0.87"N) Lower Left (-8710773.534, 4588376.402) ( 78d15'0.76"W, 38d15'0.77"N) Upper Right (-8460315.902, 4802386.689) ( 76d 0'1.12"W, 39d45'0.87"N) Lower Right (-8460315.902, 4588376.402) ( 76d 0'1.12"W, 38d15'0.77"N) Also, the coordinate system parameter in the geo-referenced file is a nicely formatted/indented hierarchy. In the one I tried to create it shows as one long string, with `' at the beginning, as if it isn't really parsed or a part of the file. What do I need to do to get the output file to have the correct coordinate system? Thanks, Wendell _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
