Sophie

Sophie

distrib > Fedora > 13 > i386 > by-pkgid > 413e0bdb3c48563b2d8d9038d07d5533 > files > 2263

grass-6.3.0-15.fc13.i686.rpm

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>GRASS GIS: v.split</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<link rel="stylesheet" href="grassdocs.css" type="text/css">
</head>
<body bgcolor="white">

<img src="grass_logo.png" alt="GRASS logo"><hr align=center size=6 noshade>

<h2>NAME</h2>
<em><b>v.split</b></em>  - Split lines to shorter segments.
<h2>KEYWORDS</h2>
vector, geometry
<h2>SYNOPSIS</h2>
<b>v.split</b><br>
<b>v.split help</b><br>
<b>v.split</b> <b>input</b>=<em>name</em> <b>output</b>=<em>name</em>  [<b>length</b>=<em>float</em>]   [<b>vertices</b>=<em>integer</em>]   [--<b>overwrite</b>]  [--<b>verbose</b>]  [--<b>quiet</b>] 

<h3>Flags:</h3>
<DL>
<DT><b>--overwrite</b></DT>
<DD>Allow output files to overwrite existing files</DD>
<DT><b>--verbose</b></DT>
<DD>Verbose module output</DD>
<DT><b>--quiet</b></DT>
<DD>Quiet module output</DD>
</DL>

<h3>Parameters:</h3>
<DL>
<DT><b>input</b>=<em>name</em></DT>
<DD>Name of input vector map</DD>

<DT><b>output</b>=<em>name</em></DT>
<DD>Name for output vector map</DD>

<DT><b>length</b>=<em>float</em></DT>
<DD>Maximum segment length.</DD>

<DT><b>vertices</b>=<em>integer</em></DT>
<DD>Maximum number of vertices in segment.</DD>

</DL>
<h2>DESCRIPTION</h2>

<em>v.split</em> split vector lines into shorter segments using a
maximal distance between nodes.

<h2>EXAMPLE</h2>

Spearfish location:

<div class="code"><pre>
# insert kilometric nodes to railroad map:
v.extract railroads out=myrr list=1

# join segments into polyline
v.build.polylines myrr out=myrr_pol
v.category myrr out=myrailroads option=add

# show line, category, direction (to find the beginning)
d.vect myrailroads disp=shape,cat,dir

# insert nodes at 1000m distance (max)
v.split railroads out=myrailroads_split length=1000
d.vect myrailroads_split disp=shape,topo
</pre></div>

<h2>SEE ALSO</h2>

<em>
<a href="v.build.polylines.html">v.build.polylines</a>,
<a href="v.segment.html">v.segment</a>
</em>

<h2>AUTHOR</h2>

Radim Blazek

<p><i>Last changed: $Date: 2007-05-01 12:32:53 +0200 (Tue, 01 May 2007) $</i>
<HR>
<P><a href="index.html">Main index</a> - <a href="vector.html">vector index</a> - <a href="full_index.html">Full index</a></P>
<P>&copy; 2003-2008 <a href="http://grass.osgeo.org">GRASS Development Team</a></p>
</body>
</html>