<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>GRASS GIS: v.what</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.what</b></em> - Queries a vector map layer at given locations. <h2>KEYWORDS</h2> vector, querying <h2>SYNOPSIS</h2> <b>v.what</b><br> <b>v.what help</b><br> <b>v.what</b> [-<b>da</b>] <b>map</b>=<em>name</em>[,<i>name</i>,...] [<b>east_north</b>=<em>east,north</em>[,<i>east,north</i>,...]] [<b>distance</b>=<em>float</em>] [--<b>verbose</b>] [--<b>quiet</b>] <h3>Flags:</h3> <DL> <DT><b>-d</b></DT> <DD>Print topological information (debugging)</DD> <DT><b>-a</b></DT> <DD>Print attribute information</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>map</b>=<em>name[,<i>name</i>,...]</em></DT> <DD>Name of input vector map</DD> <DT><b>east_north</b>=<em>east,north[,<i>east,north</i>,...]</em></DT> <DD>Coordinates for query</DD> <DD>If not given reads from standard input</DD> <DT><b>distance</b>=<em>float</em></DT> <DD>Query threshold distance</DD> <DD>Default: <em>0</em></DD> </DL> <h2>DESCRIPTION</h2> <em>v.what</em> Outputs the category number value(s) associated with user-specified location(s) in user-specified vector map layer(s). This module was derived from the <em>d.what.vect</em> module by removing all interactive code and modification of the output for easy parsing. <h2>EXAMPLE</h2> Spearfish example: <div class="code"><pre> v.what fields east_north=599121.75,4922981.125 </pre></div> <h2>SEE ALSO</h2> <em><a HREF="d.what.vect.html">d.what.vect</a></em> <h2>AUTHOR</h2> Trevor Wiens<br> Edmonton, Alberta, Canada <p><i>Last changed: $Date: 2007-04-25 23:07:10 +0200 (Wed, 25 Apr 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>© 2003-2008 <a href="http://grass.osgeo.org">GRASS Development Team</a></p> </body> </html>
