<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <title>GRASS GIS 6.3.0 Reference Manual</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <meta name="Author" content="GRASS Development Team"> <link rel="stylesheet" href="grassdocs.css" type="text/css"> </head> <body bgcolor="#FFFFFF"> <!-- this file is generated by tools/build_html_index.sh --> <img src="grass_logo.png" alt="GRASS logo"><hr align=center size=6 noshade> <h2>GRASS GIS 6.3.0 Reference Manual</h2> <p> <em>Geographic Resources Analysis Support System</em>, commonly referred to as <a href="http://grass.osgeo.org">GRASS</a>, is a Geographic Information System (GIS) used for geospatial data management and analysis, image processing, graphics/maps production, spatial modeling, and visualization. GRASS is currently used in academic and commercial settings around the world, as well as by many governmental agencies and environmental consulting companies.</p> <p>This reference manual details the use of modules distributed with Geographic Resources Analysis Support System (GRASS), an open source (GNU GPL'ed), image processing and geographic information system (GIS).</p> <h3>Quick Introduction</h3> <!-- the files grass6.html & helptext.html file live in lib/init/ --> <ul> <li><a href="grass6.html">GRASS startup manual page</a></li> <li><a href="helptext.html">How to start with GRASS</a></li> <li>Introductions <ul> <li><a href="rasterintro.html">2D raster map processing</a></li> <li><a href="raster3dintro.html">3D raster map (voxel) processing</a></li> <li><a href="imageryintro.html">Image processing</a></li> <li><a href="databaseintro.html">Database management</a></li> <li><a href="vectorintro.html">Vector map processing and network analysis</a></li> <li><a href="projectionintro.html">Projections and spatial transformations</a></li> <li><a href="sql.html">SQL support</a></li> <li><a href="displaydrivers.html">Display drivers</a></li> <li><a href="variables.html">GRASS variables and environment variables</a></li> </ul> <li><a href="gem/index.html">The GRASS Extensions Manager (GEM)</a></li> </ul> <P> <h3>Manual sections:</h3> <ul> <li><a href="display.html">display commands</a></li> <li><a href="database.html">database commands</a></li> <li><a href="general.html">general commands</a></li> <li><a href="imagery.html">imagery commands</a></li> <li><a href="misc.html">misc commands</a></li> <li><a href="photo.html">photo commands</a></li> <li><a href="postscript.html">postscript commands</a></li> <li><a href="raster.html">raster commands</a></li> <li><a href="raster3D.html">raster3D commands</a></li> <li><a href="vector.html">vector commands</a></li> <li><a href="gis.m.html">gis.m</a> and <a href="d.m.html">d.m</a> GIS managers</li> <li><a href="nviz.html">nviz</a> visualization and animation tool</li> <li><a href="wxGUI.html">wxGUI</a> wxPython-based GUI frontend</li> <li><a href="xganim.html">xganim</a> tool for animating a raster map series</li> </ul> <!-- GEM Extensions StartHTML. Do not delete or change this comment! --> <hr> <p><a href="index.html">Help Index</a> | <a href="full_index.html">Full Index</a><br> © 2003-2008 <a href="http://grass.osgeo.org">GRASS Development Team</a></p> </body> </html>