I'll tackle problems 2 & 3, leave the colors to someone else!
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Second problem: the elevation map has no value labels for the categories. I
know I can add these one-by-one using r.support or r.reclass, but is there a
faster way of doing it? ie, I want to compute the label as a function of the
category number.
You need to write a clever little shell scripts to read each line of your cats
file and create a label entry based on the attribute value. awk might be the
tool of choice for this. (REAL Grass users are shell programmers in disguise -
just kidding!!) At least you would be able to use this in the future.
The man pages also talk about a green thru brown thru yellow colourtable for
elevation maps. Is this some sort of cartographers' standard? I was under the
impression that the literature in fact recommends grey scale as being easiest
to interpret.
Don't know the cartographer's answer, but the human eye is much more adept at
distinguishing colors than gray shades. Green thru brown seems to be frequently
used on globes, etc.
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Conn V Copas
Loughborough University of Technology tel : +44 (0)509 222689
Computer-Human Interaction Research Centre fax : +44 (0)509 610815
Leicestershire LE11 3TU e-mail - (Janet):C.V.Copas@uk.ac.lut
G Britain (Internet):C.V.Copas@lut.ac.uk
--
Malcolm D. Williamson - Research Assistant E-mail: malcolm@cast.uark.edu
Center for Advanced Spatial Technologies Telephone: (501) 575-6159
Ozark Rm. 12 Fax: (501) 575-3846
University of Arkansas
Fayetteville, AR 72701