I have some 100K dlg files that I have imported with v.import.
When I plot them with d.vect I notice that there are lines at the
edges of each quad. I'd like to remove these lines.
I have tried v.rmedge, but it removes the information inside the quad as
well. I tried v.digit and could not select the edge lines.
How do I import these files so that when I patch them together the
edge lines will not be visible?
*******************************************************************
James Curry
Lawrence Livermore National Laboratory
P.O. Box 808, MS: L-183
Livermore, California 94550
jcurry@llnl.gov
Hi James,
If the category #s are the same on each side of these internal lines, then
using v.reclass with the -d option will dissolve lines where the same category
# is on each side (you can construct a reclass file from your dig_cats file).
If the category #s are not the same, but the label is the same (and the label
is a single descriptor like AB505), you can use the v.merge GRASS command that
will standardize category #s. The last information I had on the v.merge command
was that it would not deal with text strings as labels in the dig_cat files
(text separated by spaces). I worked around this by making a v.merge script tha
t
would deal with text strings, plus dissolve common lines. If you would like thi
s
script, I can make it available. Rick
On Mon, 25 Mar 1996, James Curry wrote:
I have some 100K dlg files that I have imported with v.import.
When I plot them with d.vect I notice that there are lines at the
edges of each quad. I'd like to remove these lines.
I have tried v.rmedge, but it removes the information inside the quad as
well. I tried v.digit and could not select the edge lines.
How do I import these files so that when I patch them together the
edge lines will not be visible?
------------------------------------------------------------------------
Rick Thompson- Research Specialist E-mail: rick@cast.uark.edu
Center for Advanced Spatial Technologies Telephone: (501) 575-6159
Ozark Hall Rm. 12 Fax: (501) 575-5218
University of Arkansas
Fayetteville, AR 72701
DISCLAIMER: Any opinions or comments about any product, organization,
or individual expressed in the above text are my own.