From grass-lists-owner@max.cecer.army.mil Tue Mar 22 19:26:33 1994
From: rick@cast.uark.edu (Rick Thompson)
Subject: Area Edge vs. Line ?
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Date: Tue, 22 Mar 94 21:11:20 CST
Cc: rick@cast.uark.edu (Rick Thompson)
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Content-Length: 795Hello. A dig_att file for a vector file digitized in "line" type looks the
same as one digitized in "area" type. There appears no visible difference
here, but v.reclass will work on the former not the latter regarding
reclassing labelled lines. Does anyone know a shortcut for changing a vector
file from area edge to line type other than doing too many manually in v.digit.
I've inherited lots of lines in the area edge type. Am I missing something?
------------------------------------------------------------------------
Rick Thompson- Research Assistant E-mail: rick@cast.uark.edu
Center for Advanced Spatial Technologies Telephone: (501) 575-5736
Ozark Hall Rm. 12 Fax: 575-3846
University of Arkansas
Fayetteville, AR 72701
The dig att file won't tell you whether it is a line or an area edge.
You need to v.out.ascii. In that file, "L" is a line, "l" is an
erased line, "A" is an area edge, and "a" is an erased area edge.
Use vi or awk or whatever to change L to A.
If you want to have both, I suggest you use v.digit, or change all
to whichever is most common and then v.in.ascii, and v.digit the
rest back.
-sue
CEDR - REGIS
UC Berkeley