[GRASSLIST:3226] Re: colors for d.his

[Markus Neteler]

On Mon, Apr 19, 2004 at 08:56:12PM +0000, Richard Greenwood wrote:
> Hamish wrote:
> >>Could anyone provide hints for creating a nice color ramp for the map 
> >>used as the hue parameter of d.his suitable for representing an alpine
> >>valley in which the lowest elevations would be green going to brown, 
> >>grey, and white for the highest elevations?
> >
> >
> >
> >see:
> >http://intevation.de/rt/webrt?serial_num=2072
> >
> >thus,
> >
> >r.colors map=xxxx col=rules << EOF
> >-11000 0 0 0
> >-500 0 0 30
> >-100 0 0 200
> >-1 150 150 255
> >0 0 150 0
> >270 90 165 90
> >300 90 175 90
> >500 50 180 50
> >500 70 170 70
> >1000 70 145 75
> >1000 70 155 75
> >2000 150 156 100
> >2800 220 220 220
> >3000 255 255 255
> >8850 255 255 255
> >nv 255 255 255
> >EOF
> >
> >
> >i.e. [elevation Red Green Blue]
> >
> >or for your suggested colors, use these rules:
> >
> >0% green
> >33.3% brown
> >66.7% grey
> >100% white
> >
> >
> >Hamish
> 
> 
> Thank you for the prompt reply. After reading the documentation it 
> proves to be much easier than I was making it. I am embarrassed to have 
> posted such a trivial question.

To make it less trivial, someone could implement above color table
into r.colors as 'terrain'... 

Markus