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v.in.gns.1grass
Langue: en
Version: 334500 (ubuntu - 24/10/10)
Section: 1 (Commandes utilisateur)
NAME
v.in.gns - Imports US-NGA GEOnet Names Server (GNS) country files into a GRASS vector points map.KEYWORDS
vector, import, gazetteerSYNOPSIS
v.in.gnsv.in.gns help
v.in.gns file=string [vect=string] [--overwrite] [--verbose] [--quiet]
Flags:
- --overwrite
Allow output files to overwrite existing files- --verbose
Verbose module output- --quiet
Quiet module output
Parameters:
- file=string
Uncompressed GNS file from NGA (with .txt extension)- vect=string
Name for output vector map
DESCRIPTION
v.in.gns imports US-NGA GEOnet Names Server (GNS) country files (Gazetteer data) into a GRASS vector points map. The country files can be downloaded from the NGA GNS Web Server (see below). The script generates a vector point map. Only original files can be processed (unzip compressed file first). These GNS files are encoded in UTF-8 which is maintained in the GRASS database.NOTES
The current DB connection is used to write the database table.Generally, column names longer that 10 characters are shortened to 10 characters to meet the DBF column name restrictions. If this is a problem consider choosing another database driver with db.connect.
To filter outliers (points outside of a country), the v.select module can be used to perform point-in-polygon tests. v.select saves only the GNS points falling into a country polygon into the new points map.
SEE ALSO
db.connect, v.selectREFERENCES
GEOnet Names Server files for countries and territoriesColumn names explanations
AUTHOR
Markus Neteler, MPBA Group, ITC-irstLast changed: $Date: 2008-03-13 09:01:14 +0100 (gio, 13 mar 2008) $
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