<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>GRASS GIS: r3.null</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>r3.null</b></em> - Explicitly create the 3D NULL-value bitmap file. <h2>KEYWORDS</h2> raster3d, voxel <h2>SYNOPSIS</h2> <b>r3.null</b><br> <b>r3.null help</b><br> <b>r3.null</b> <b>map</b>=<em>string</em> [<b>setnull</b>=<em>val[-val]</em>[,<i>val[-val]</i>,...]] [<b>null</b>=<em>float</em>] [--<b>verbose</b>] [--<b>quiet</b>] <h3>Parameters:</h3> <DL> <DT><b>map</b>=<em>string</em></DT> <DD>3d raster map for which to modify null values</DD> <DT><b>setnull</b>=<em>val[-val][,<i>val[-val]</i>,...]</em></DT> <DD>List of cell values to be set to NULL</DD> <DT><b>null</b>=<em>float</em></DT> <DD>The value to replace the null value by</DD> </DL> <H2>DESCRIPTION</H2> Modifies the NULL values of <EM>map</EM>. <H2>SEE ALSO</H2> <EM><A HREF="r.null.html">r.null</A></EM><br> <H2>AUTHORS</H2> Roman Waupotitsch, Michael Shapiro, Helena Mitasova, Bill Brown, Lubos Mitas, Jaro Hofierka <p><i>Last changed: $Date: 2005-08-23 14:11:00 +0200 (Tue, 23 Aug 2005) $</i> <HR> <P><a href="index.html">Main index</a> - <a href="raster3D.html">raster3D 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>
