shapiro at zorro.cecer.army.mil
Sun Mar 7 00:27:00 EST 1993
In info.grass.user you write:
>These errors are probably occuring because of the region.
>The PNT_TO_AREA error occurs when an area is unable to be
>closed. This may be because a vector is getting cut out
>during the import. Try setting a larger region when you
I may be putting my foot into my mouth, but from what I understand
or GRASS vector processing, most of the processing ignores
the current region (except d.vect and v.to.rast). v.import doesn't
pay attention (this implies applying a function like v.cutter).
Your problem is a topolgy problem.
>I saw a message a while back about the matching error but
>I can't remember what the cure was. I've run into this on
>my files and if the labels are the same, ie;
>WARNING: area 3959 label: 255317 matched another label: 255317
>there seems to be no problem. But if they are different, as in
>your case I would be concerned.
>Depending on the size of your file, you may want to try to locate
>the areas in question, remove all labels from them in v.digit and
>then relabel them - just a suggestion.
>I'm not an expert on these problems but these are just some
>techniques I've used.
>FYI - feeney at vinny.cecer.army.mil
> (217) 373-4420 Ext. 320
Michael Shapiro U.S. Army CERL
P.O. Box 9005
Champaign, Ill. 61826-9005
email: shapiro at zorro.cecer.army.mil
phone: (217) 352-6511 ext 526
fax: (217) 373-7222
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