You can try gdal_calc.py http://smathermather.wordpress.com/2011/12/01/gdal_calc-py-raster-calculator-using-numby-functions/
- Nathan On Fri, Apr 6, 2012 at 4:35 PM, Swapnil Chaudhari <[email protected]>wrote: > Dear QGIS User Team, > > I have sets of grid files, corresponding to monthly mean temperature for > few years. > > I am working on scaling the raw data and modifying the extent of output > file from -180,180,-90,90 to -180,180,-60, 90. > > The process of doing this with Raster Calculator is straight and very > simple, where you have to give raster calculation expression, output extent > and name of output with its format. > The scaling equation for doing so e.g. is, (cru_tmp_clim_1961-1970_05@1 > *0.51)-85 > > Although very simple, its very time consuming since I have data for around > 6 to 7 dacads. > > I would be very glad if some one can help me find the python script for > doing this in loop. So that I can process whole directory in single go. > > In addition to that, I would also request you to inform mannaul, guide to > learn python scripting for simple raster and vector operations. > > You efforts in helping with this is much appreciated. > > Thank you very much. > > Best, > > Swapnil > o__ > _> /__ > (_) \(_)....... live healthy > > > _______________________________________________ > Qgis-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-user > >
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