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<h2>NAME</h2>
<em><b>r.region</b></em> - Sets the boundary definitions for a raster map.
<h2>KEYWORDS</h2>
raster
<h2>SYNOPSIS</h2>
<b>r.region</b><br>
<b>r.region help</b><br>
<b>r.region</b> [-<b>cd</b>] <b>map</b>=<em>name</em> [<b>region</b>=<em>name</em>] [<b>raster</b>=<em>name</em>] [<b>vector</b>=<em>name</em>] [<b>3dview</b>=<em>name</em>] [<b>n</b>=<em>value</em>] [<b>s</b>=<em>value</em>] [<b>e</b>=<em>value</em>] [<b>w</b>=<em>value</em>] [<b>align</b>=<em>name</em>] [--<b>verbose</b>] [--<b>quiet</b>]
<h3>Flags:</h3>
<DL>
<DT><b>-c</b></DT>
<DD>Set from current region</DD>
<DT><b>-d</b></DT>
<DD>Set from default region</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</em></DT>
<DD>Raster map to change</DD>
<DT><b>region</b>=<em>name</em></DT>
<DD>Set region from named region</DD>
<DT><b>raster</b>=<em>name</em></DT>
<DD>Set region to match this raster map</DD>
<DT><b>vector</b>=<em>name</em></DT>
<DD>Set region to match this vector map</DD>
<DT><b>3dview</b>=<em>name</em></DT>
<DD>Set region to match this 3dview file</DD>
<DT><b>n</b>=<em>value</em></DT>
<DD>Value for the northern edge (format dd:mm:ss{N|S})</DD>
<DT><b>s</b>=<em>value</em></DT>
<DD>Value for the southern edge (format dd:mm:ss{N|S})</DD>
<DT><b>e</b>=<em>value</em></DT>
<DD>Value for the eastern edge (format ddd:mm:ss{E|W})</DD>
<DT><b>w</b>=<em>value</em></DT>
<DD>Value for the western edge (format ddd:mm:ss{E|W})</DD>
<DT><b>align</b>=<em>name</em></DT>
<DD>Raster map to align to</DD>
</DL>
<H2>DESCRIPTION</H2>
The <EM>r.region</EM> program allows the user to manage the boundaries
of a raster map. These boundaries can be set by the user directly
and/or set from a region definition file (stored under the
<KBD>windows</KBD> directory in the user's current mapset), a raster
or vector map, or a 3dview file.
<P>
The <B>align</B> parameter allows to set the current resolution equal to
that of the named raster map, and align the boundaries to a row and column
edge in the named map. Alignment only moves the existing boundaries outward
to the edges of the next nearest cell in the named raster map -- not to the
named map's edges. To perform the latter function, use the
<B>raster=</B><EM>name</EM> option.
<H2>NOTE</H2>
After all updates have been applied, the raster map's resolution
settings are recomputed from the boundaries and the number of rows and
columns in the raster map.
<H2>SEE ALSO</H2>
<EM><A HREF="r.support.html">r.support</A></EM><br>
<EM><A HREF="g.region.html">g.region</A></EM>
<H2>AUTHOR</H2>
Glynn Clements
<BR>
Based upon g.region
<p><i>Last changed: $Date: 2006-04-21 14:45:09 +0200 (Fri, 21 Apr 2006) $</i>
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