[GRASSLIST:3221] Re: colors for d.his

[Hamish]

> 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