Hi, in case you use GRASS 7, r.colors accepts multiple maps or a file with the map names. So this should do it: r.colors map=precip1,precip2,precip3 color=precipitation
Also, have a look at temporal modules (GRASS 7 only). You can register the series of maps as a dataset (t.create, t.register) and then you can easily get the min, max values for the entire series and there is also t.rast.colors. Anna On Tue, Jul 22, 2014 at 9:41 PM, Daniel Victoria <[email protected]> wrote: > Hi Raphael, > > This is what I did some time ago when I had the same problem > 1) Find out the overall minimun and maximum precipitation over all maps. > 2) Use r.colors with the rules option to compose a colortable that cover > my entire precip range. > 3) Apply the same colortable to all maps > 4) plot and be happy > > Hope it helps > Daniel > > > On Tue, Jul 22, 2014 at 10:01 PM, <[email protected]> > wrote: > >> Hello >> I wonder if anyone knows how to create a common colour scale for >> different raster maps? >> I want to display all six maps on the same page with the single colour >> scale but I cannot find how to do this in GRASS. >> >> More specifically, I have six raster maps of rainfall for different >> time periods (each has a different range of values) and I would like to >> display them all with the same colour scale. The colour scale needs to be >> constructed using the min and max values of the set of six maps (and not >> just individual maps. >> >> Will appreciate any input please. Thank you, >> >> Raphael. >> >> __________________________ >> >> Raphael *VISCARRA ROSSEL* | Principal Research Scientist | CSIRO Land >> and Water | Bruce E. Butler Laboratory, Clunies Ross St, Black Mountain, >> Acton ACT 2601 | PO BOX 1666 Canberra ACT 2600 | t. +61 2 6246 5945 | m. +61 >> 467 769 364 | Chair International Union of Soil Science Working Group on >> Proximal Soil Sensing | www.researcherid.com/rid/B-4061-2011 | >> scholar.google.com.au/citations?hl=en&user=KpJdvKEAAAAJ >> >> >> >> >> _______________________________________________ >> grass-user mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/grass-user >> > > > _______________________________________________ > grass-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/grass-user >
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