<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>GRASS GIS: v.mkgrid</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.mkgrid</b></em> - Creates a GRASS vector map of a user-defined grid. <h2>KEYWORDS</h2> vector <h2>SYNOPSIS</h2> <b>v.mkgrid</b><br> <b>v.mkgrid help</b><br> <b>v.mkgrid</b> [-<b>q</b>] <b>map</b>=<em>name</em> <b>grid</b>=<em>rows,columns</em> [<b>position</b>=<em>string</em>] [<b>coor</b>=<em>x,y</em>] [<b>box</b>=<em>width,height</em>] [<b>angle</b>=<em>float</em>] [--<b>overwrite</b>] [--<b>verbose</b>] [--<b>quiet</b>] <h3>Flags:</h3> <DL> <DT><b>-q</b></DT> <DD>Quiet; No chatter</DD> <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>map</b>=<em>name</em></DT> <DD>Name for output vector map</DD> <DT><b>grid</b>=<em>rows,columns</em></DT> <DD>Number of rows and columns in grid</DD> <DT><b>position</b>=<em>string</em></DT> <DD>Where to place the grid</DD> <DD>Options: <em>region,coor</em></DD> <DD>Default: <em>region</em></DD> <DD><b>region</b>: current region</DD> <DD><b>coor</b>: use 'coor' and 'box' options</DD> <DT><b>coor</b>=<em>x,y</em></DT> <DD>Lower left easting and northing coordinates of map</DD> <DT><b>box</b>=<em>width,height</em></DT> <DD>Width and height of boxes in grid</DD> <DT><b>angle</b>=<em>float</em></DT> <DD>Angle of rotation (in degrees counter-clockwise)</DD> <DD>Default: <em>0</em></DD> </DL> <H2>DESCRIPTION</H2> <EM>v.mkgrid</EM> will create a vector map representation of a regular coordinate grid. <H2>NOTES</H2> This is NOT to be used to generate a vector map of USGS quadrangles, because USGS quads are not exact rectangles. <H2>EXAMPLE</H2> Make a 4x3 grid, cells 20km a side, with lower left corner at 2716500,6447000: <div class="code"><pre> v.mkgrid map=coro_grid grid=4,3 position=coor coor=2716500,6447000 box=20000,20000 </pre></div> <H2>SEE ALSO</H2> <A HREF="v.patch.html">v.patch</A>, <A HREF="d.grid.html">d.grid</A> <H2>AUTHOR</H2> Michael Higgins, U.S.Army Construction Engineering Research Laboratory <P> Update for new vectors Radim Blazek 10/2004 <p><i>Last changed: $Date: 2006-01-02 15:44:52 +0100 (Mon, 02 Jan 2006) $</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>
