[GRASS-user] create a common colour scale

[Daniel Victoria]

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, <Raphael.Viscarra-Rossel at csiro.au> 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
>
>
>
>
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