Hi I have seen some raster files with this format
-4.983333 14.983333 -79.983333 -66.016667 0.03333333333333333 0.03333333333333333 -5.258 -5.301 -5.345 -5.393 -5.444 -5.499 -5.555 -5.615 -5.682 -5.752 -5.823 -5.886 -5.938 -5.986 -6.036 -6.093 -6.157 -6.226 -6.296 -6.358 -6.413 -6.462 -6.516 -6.574 -6.636 -6.700 -6.761 -6.819 -6.868 -6.901 -6.933 -6.962 -7.004 -7.069 -7.156 -7.263 -7.374 -7.479 -7.581 -7.669 -7.748 -7.814 -7.873 -7.923 -7.973 -8.027 -8.084 -8.143 -8.208 -8.278 -8.355 -8.447 -8.552 -8.670 -8.790 -8.911 ... The first line (six numbers) is the bounding box (4) and the grid steps (2), all in degrees. Then all the pixel values (as in AAIGrid format). If I try to run gdalinfo, I get ERROR 1: Maximum number of characters allowed reached. ERROR 1: Couldn't determine X spacing gdalinfo failed - unable to open 'file.txt'. However, if I change the first line with this command to convert it into a https://gdal.org/drivers/raster/aaigrid.html , is works awk 'NR==1 {print "NCOLS "($4-$3)/$6+1 "\nNROWS "($2-$1)/$5+1 "\nXLLCENTER "$3 "\nYLLCENTER "$1 "\nCELLSIZE "$6} NR>1 {print $0}' <source_file> Producing something like this: NCOLS 420 NROWS 600 XLLCENTER -79.983333 YLLCENTER -4.983333 CELLSIZE 0.03333333333333333 -5.258 -5.301 -5.345 -5.393 -5.444 -5.499 -5.555 -5.615 -5.682 -5.752 -5.823 -5.886 -5.938 -5.986 -6.036 -6.093 -6.157 -6.226 -6.296 -6.358 -6.413 -6.462 -6.516 -6.574 -6.636 -6.700 -6.761 -6.819 -6.868 -6.901 -6.933 -6.962 -7.004 -7.069 -7.156 -7.263 -7.374 -7.479 -7.581 -7.669 -7.748 -7.814 -7.873 -7.923 -7.973 -8.027 -8.084 -8.143 -8.208 -8.278 -8.355 -8.447 -8.552 -8.670 -8.790 -8.91 ... See that I am assuming that the coordinates in the first line are at the pixel center. Do you know what is that initial format? Is it a "variation" of "AAIGrid -- Arc/Info ASCII Grid"? Something else? Is it worth it to add it to GDAL? (maybe the awk script is enough) Thanks .___ ._ ..._ .. . ._. .___ .. __ . _. . __.. ... .... ._ .__
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