Swapnil, You missed the --format option with gdal_calc. If you don't mention it, it assumes the default format, GeoTiff.
Since the operation is simple, you should be able to do that using gdal_translate using the -scale option. It also has the -projwin option to select the extents. On Fri, May 11, 2012 at 9:59 AM, Swapnil Chaudhari <[email protected]>wrote: > Dear All, > > I would like to get your advise on running gdal_calc using shell. > I am finding it difficult, mostly because the command requires you to > define what -A stands for etc. which is quite different from > gdal_translate or such similar tools, so is the case with Raster > package in R. > > I wish to scale all the temperature ascii grids that I have for quite > a few number of folders. > > I wrote following sh file > > for f in *.tif > do > echo "Processing $f" > gdal_calc -A $f --outfile=$f_scaled.asc --calc=A/10 > done > > > However, I am making a mistake somewhere, it does not read above > script as a command. I wish to divide all the rasters with 10 and also > equally wish to make all output files extent as "-projwin -180.0 90.0 > 180.0 -60.0" and column 720 with rows 300 > > I would be really thankful if you can give some suggestion on this. > > Thanks a ton. > > Swapnil Chaudhari > > o__ > _> /__ > (_) \(_)....... live healthy > _______________________________________________ > gdal-dev mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/gdal-dev > -- Best regards, Chaitanya kumar CH. +91-9494447584 17.2416N 80.1426E
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