[GRASS-user] Need for a custom color map

[Markus Neteler]

Tom,

did you try the "differences" color map from r.colors [1]?
It is defined as

0% blue
0 white
100% red

It was added by Helena for such scopes.

Markus

[1] lib/gis/colors/differences


Thomas Adams wrote:
> 
> List:
> 
> I'm wondering if someone has a color map that has white in the middle 
> range and blue at one extreme and red at the other. I'm creating a 
> precipitation difference map for data quality control purposes and I'm 
> trying to identify areas of over- and under-estimation by radar 
> estimates relative to gauge-only estimates. Such a scale would be 
> helpful to those looking for differences.
> 
> Thanks,
> Tom
> 
> -- 
> Thomas E Adams
> National Weather Service
> Ohio River Forecast Center
> 1901 South State Route 134
> Wilmington, OH 45177
> 
> EMAIL:	thomas.adams at noaa.gov
> 
> VOICE:	937-383-0528
> FAX:	937-383-0033
> 

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