I have some site lists that I want to use in GRASS.
Getting them in is not a problem, but then it looks
like you are on your own. Are there any buffering/masking
operators for site data, or do you have to convert to rasters
using s.menu?
And, how to cope with multiple attributes for each site?
It looks like this needs multiple site lists? Am I right?
Last time I tried to get rim and s.db.rim working I wasted
a few days with no reward. What do other people do?
Simon Cox
----
___________________________________________________
__ L Dr Simon Cox
,~' L_|\ VIEPS Department of Earth Sciences,
,-' \ Monash University, Clayton Vic 3168
( \ Australia
\ ___ / Phone +61 3 905 5762
L,~' "\_x/ Fax +61 3 905 5062
u simon@artemis.earth.monash.edu.au
___________________________________________________
Simon Cox (simon@artemis.earth.monash.edu.au) writes on 5 Jan 94:
I have some site lists that I want to use in GRASS.
Getting them in is not a problem, but then it looks
like you are on your own. Are there any buffering/masking
operators for site data, or do you have to convert to rasters
using s.menu?
I'm sure of exactly what you are looking for, but
I recall two separate utilities for creating
vector circles around site data (one with variable
radii, presumably using the third field to define
this). This may be the start of a buffering solution.
Regarding masking and multiple attributes, it's
probably to your advantage to become real familiar
with awk (if you aren't already). E.g., to mask out
values between a high and low range:
s.out.ascii -d siteslist | \
awk '{if ($3 >= hi || $3 <= lo) print $0}' hi=30 lo=20 | \
s.in.ascii maskedsitelist
For multiple attributes, I just separate each by a pipe '|'
and work on the sites list directly:
awk -F'|' '{print $1,$2,$(field+2)}' field=8 $LOCATION/site_lists/file | \
s.in.ascii sitelist8
(this breaks if you're working with sites in another mapset, but
there are ways around this).
Other than rim and awk, I'm afraid the answer is negative.
--Darrell
P.S. I've never gotten rim to work either, but because of the
learning curve and the availability of awk, I've lacked the
motivation.