[GRASS-dev] r.colors -a rule sorting

Hamish hamish_b at yahoo.com
Mon Dec 1 23:25:41 EST 2008


Hi,

I am just trying out the new 'r.colors -a'. Results look good, visually
matches 'r.mapcalc abs($MAP)' + 'r.colors -g' exactly.


One thing I notice in the colr/ file, the positive/negative rules are interleaved: 

====
nv:255
*:255
1:0:0:255 1.1457610996:0:7:255
-1.1457610996:0:7:255 -1:0:0:255
1.1457610996:0:7:255 1.3127684973:0:15:255
-1.3127684973:0:15:255 -1.1457610996:0:7:255
1.3127684973:0:15:255 1.5041190769:0:22:255
...
-618328.3661061861:255:16:0 -539666.049353256:255:23:0
618328.3661061861:255:16:0 708456.5886435417:255:8:0
-708456.5886435417:255:8:0 -618328.3661061861:255:16:0
708456.5886435417:255:8:0 811721:255:0:0
-811721:255:0:0 -708456.5886435417:255:8:0
====

(this is r.watershed accumulation map for spearfish's elevation.10m)


is it any problem that they are not sorted min to max, or is it just
cosmetic?


Hamish


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