v.support response

GRASS GRASS user
1

I have recently digitized landuse areas using v.digit. On running v.support
I get the following error message:

    Warning: area 141 label: 205 matched another label 205
    Warning: area 143 label: 201 matched another label 205

       # of lines: 272
       # of nodes: 271
       # of areas: 272
       # of isles: 271
       # of atts: 402
       # of unattached atts: 0
       Snapped lines: 0

After running v.clean on the data, I still got the same warnings. What does
this mean and how do I fix the data. There are many of these warning
messages.

Thank you,
Daphne

This occurs when there are two labels for the same area. I have had this
occur when I have run v.support on a file originating from v.patch. I have
also seen this with frenquintly edited vector files. I don't worry about
the ones that have the same label, but you should worry about matches of
different labels. The only way I have found to fix this is to unlable in
V.digit all problem areas, exit, run v.support again, then go back to v.digit
and see if these problem areas are labeled ( whether correct or not).
Unfortunately, the area numbers reported by v.support are not usable as a
reference. Good Luck!!!!

Marty McKimmey
baxter.uark.edu

University of Arkansas, Fayetteville.
Soil Physics Laboratory 501 575-3590