> But with this I can subset one band data at a time. Is it somehow possible >to use i.group and region definition to obtain subsets of all bands? >Scripting might be an answer but I have no much idea about it.
what about working with different computational regions? http://grass.osgeo.org/grass64/manuals/html64_user/rasterintro.html : "[...] As a general rule in GRASS: * Raster output maps have their bounds and resolution equal to those of the current computational region. * Raster input maps are automatically cropped/padded and rescaled (using nearest-neighbour resampling) to match the current region. * Raster input maps are automatically masked if a raster map named MASK exists. The MASK is only applied when reading maps from the disk. [...]" so you can do calculations/run modules in different computational region without extracting of many subsets of your data before. best regards Helmut ___________________________________________________________ WEB.DE DSL Doppel-Flat ab 19,99 €/mtl.! Jetzt mit gratis Handy-Flat! http://produkte.web.de/go/DSL_Doppel_Flatrate/2
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