[GRASSLIST:5098] Re: colored area map question

Xueming Wu xwu at cse.unl.edu
Wed Nov 27 15:50:50 EST 2002


You can convert you vector map into raster. Then use
r.reclass and r.color to color the states based on your
criteria and color scheme. Or just use v.reclass.

Hope this may be help.


On Wed, 27 Nov 2002, Ed Davison wrote:

> I have a map of the US with the states as areas in a grass vector map layer.
> I need to be able to color these states based upon some sort of criteria, 
> like number of requests from each state or population.  The criteria would
> be scaled and each breakdown would be given a color, e.g. from 1-10 = green,
> from 11-20 = yellow, from 21-30 = red, etc.  Or even a ramp from one color
> to another across the range.
> I cannot seem to be able to find anything like this.
> Does anyone know how this would be done?
> Ed

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