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

<H2>DESCRIPTION</H2>

<EM>v.in.mapgen</EM> allows the user to import Mapgen or Matlab vector maps 
into GRASS.

<H2>NOTES</H2>

This module only imports data into vector lines.
<P>
You can get coastline data in Mapgen or Matlab format from NOAA's Coastline 
Extractor at <a href="http://www.ngdc.noaa.gov/mgg/shorelines/shorelines.html">http://www.ngdc.noaa.gov/mgg/shorelines/shorelines.html</a>.
<P>
Matlab vector line maps are simply a series of "x y" data points. Lines
are separated by a row containing <tt>NaN NaN</tt>.

Output from Matlab with this command:
<BR>
<div class="code"><pre>
    save filename.txt arrayname -ASCII
</pre></div>
<P>
You can import 3D lines from Matlab by exporting a 3 column array and
using the <B>-z</B> flag.


<H2>SEE ALSO</H2>
<EM><A HREF="v.in.ascii.html">v.in.ascii</A></EM><BR>
<BR>

<P>
<H2>AUTHORS</H2>
Based on <em>v.in.mapgen.sh</em> for GRASS 5.0 by Andreas Lange
<BR>Rewritten for GRASS 6 by Hamish Bowman
<BR>

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