shade.rel.sh

[Simon Cox]

I suggest that you just open the script (it is an ascii file) and take a look.
The syntax of awk & sh are similar to other procedural languages,
and there are many books/sections of books which explain more.

>To anyone who knows:
>I am currently using GRASS4.1 for my masters thesis project at the
>University of Arizona.  I need information on how the shell script
>program called- shade.rel.sh -was created.  The formula is listed in the
>g.manual pages, but an explanation was not given as to the methodology
>behind it.  I am looking at how topography effects incoming solar
>radiation.  I need to know if the program looks at surrounding pixels and
>specifically how it creates the category file (0-dark, 100-light).
>Please, if there is anyone out there that can help me with this question
>I would greatly appreciate it.  Thank you.
>Just in case my e-mail address doesn't get passed along it is as follows:
>jps at neurobio.arizona.edu

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Dr Simon Cox                        __  \
CSIRO Exploration & Mining       ,~'  L_|\    Australian
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