Geografic-Information-System/scripts/v.in.gns/v.in.gns.html

<h2>DESCRIPTION</h2>

<em>v.in.gns</em> 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.

<h2>NOTES</h2>

The current DB connection is used to write the database table.
<P>
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 <em>db.connect</em>.
<P>
To filter outliers (points outside of a country), the <em>v.select</em>
module can be used to perform point-in-polygon tests. <em>v.select</em>
saves only the GNS points falling into a country polygon into the new
points map.

<h2>SEE ALSO</h2>

<em>
<a HREF="db.connect.html">db.connect</a>,
<a HREF="v.select.html">v.select</a>
</em>

<H2>REFERENCES</H2>

<a href="http://earth-info.nga.mil/gns/html/">GEOnet Names Server files for countries and territories</a><br>
<a href="http://earth-info.nga.mil/gns/html/help.htm">Column names explanations</a>

<h2>AUTHOR</h2>

Markus Neteler, <a href="http://mpa.itc.it/">MPBA Group, ITC-irst</a>

<p>
<i>Last changed: $Date$</i>