USGS DLG files
Mike Hanratty
hanra001 at gold.tc.umn.edu
Mon Sep 30 08:00:00 EDT 1996
> From: Ed Davison <bfdi533 at spice.cc.utexas.edu>
> Date: Fri, 27 Sep 1996 16:33:58 -0500
> To: grassu-list at max.cecer.army.mil
> Subject: USGS DLG files
>
> How do I import USGS DLG files into a GRASS data set?
>
> Ed Davison
> edavison at febc.comland.com
>
Steps for importing USGS DLG files
1. Download from EROS Data Center (keep .gz suffix)
2. Unzip file using gzip -d fname
3. Divide into 80 character lines: fold fname > newfname
4. Import into GRASS: v.import
Options:
1
newfname
y UTM projection (sometimes not asked)
n Lines, not Areas
n Don't do multiple attribute (runs out of memory on my machine)
n Don't snap
Michael Hanratty Phone: (612) 627-4590
Dept. of Civil Engineering (612) 626-0024
University of Minnesota Fax: (612) 627-4609
St. Anthony Falls Laboratory
Mississippi River at 3rd Ave SE
Minneapolis, MN 55414
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