EVOLUTION-MANAGER
Edit File: gdal_contour.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.5"/> <title>My Project: gdal_contour</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="search/search.js"></script> <script type="text/javascript"> $(document).ready(function() { searchBox.OnSelectItem(0); }); </script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td style="padding-left: 0.5em;"> <div id="projectname">My Project </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.5 --> <script type="text/javascript"> var searchBox = new SearchBox("searchBox", "search",false,'Search'); </script> <div id="navrow1" class="tabs"> <ul class="tablist"> <li><a href="index.html"><span>Main Page</span></a></li> <li class="current"><a href="pages.html"><span>Related Pages</span></a></li> <li><a href="annotated.html"><span>Classes</span></a></li> <li><a href="files.html"><span>Files</span></a></li> <li> <div id="MSearchBox" class="MSearchBoxInactive"> <span class="left"> <img id="MSearchSelect" src="search/mag_sel.png" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" alt=""/> <input type="text" id="MSearchField" value="Search" accesskey="S" onfocus="searchBox.OnSearchFieldFocus(true)" onblur="searchBox.OnSearchFieldFocus(false)" onkeyup="searchBox.OnSearchFieldChange(event)"/> </span><span class="right"> <a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a> </span> </div> </li> </ul> </div> <!-- window showing the filter options --> <div id="MSearchSelectWindow" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> <a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark"> </span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark"> </span>Classes</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark"> </span>Pages</a></div> <!-- iframe showing the search results (closed by default) --> <div id="MSearchResultsWindow"> <iframe src="javascript:void(0)" frameborder="0" name="MSearchResults" id="MSearchResults"> </iframe> </div> </div><!-- top --> <div class="header"> <div class="headertitle"> <div class="title">gdal_contour </div> </div> </div><!--header--> <div class="contents"> <div class="textblock"><p>builds vector contour lines from a raster elevation model</p> <h1><a class="anchor" id="gdal_contour_synopsis"></a> SYNOPSIS</h1> <pre class="fragment">Usage: gdal_contour [-b <band>] [-a <attribute_name>] [-3d] [-inodata] [-snodata n] [-i <interval>] [-f <formatname>] [[-dsco NAME=VALUE] ...] [[-lco NAME=VALUE] ...] [-off <offset>] [-fl <level> <level>...] [-nln <outlayername>] <src_filename> <dst_filename> </pre><h1><a class="anchor" id="gdal_contour_description"></a> DESCRIPTION</h1> <p>This program generates a vector contour file from the input raster elevation model (DEM).</p> <p>Starting from version 1.7 the contour line-strings will be oriented consistently. The high side will be on the right, i.e. a line string goes clockwise around a top.</p> <dl> <dt><b>-b</b> <em>band</em>:</dt> <dd><p class="startdd">picks a particular band to get the DEM from. Defaults to band 1.</p> <p class="enddd"></p> </dd> <dt><b>-a</b> <em>name</em>:</dt> <dd>provides a name for the attribute in which to put the elevation. If not provided no elevation attribute is attached. </dd> <dt><b>-3d</b>: </dt> <dd><p class="startdd">Force production of 3D vectors instead of 2D. Includes elevation at every vertex.</p> <p class="enddd"></p> </dd> <dt><b>-inodata</b>: </dt> <dd><p class="startdd">Ignore any nodata value implied in the dataset - treat all values as valid.</p> <p class="enddd"></p> </dd> <dt><b>-snodata</b> <em>value</em>:</dt> <dd><p class="startdd">Input pixel value to treat as "nodata". </p> <p class="enddd"></p> </dd> <dt><b>-f</b> <em>format</em>: </dt> <dd><p class="startdd">create output in a particular format, default is shapefiles.</p> <p class="enddd"></p> </dd> <dt><b>-dsco</b> <em>NAME=VALUE</em>:</dt> <dd>Dataset creation option (format specific) </dd> <dt><b>-lco</b> <em>NAME=VALUE</em>:</dt> <dd><p class="startdd">Layer creation option (format specific)</p> <p class="enddd"></p> </dd> <dt><b>-i</b> <em>interval</em>:</dt> <dd><p class="startdd">elevation interval between contours.</p> <p class="enddd"></p> </dd> <dt><b>-off</b> <em>offset</em>:</dt> <dd><p class="startdd">Offset from zero relative to which to interpret intervals.</p> <p class="enddd"></p> </dd> <dt><b>-fl</b> <em>level</em>: </dt> <dd>Name one or more "fixed levels" to extract. </dd> <dt><b>-nln</b> <em>outlayername</em>: </dt> <dd>Provide a name for the output vector layer. Defaults to "contour". </dd> </dl> <h1><a class="anchor" id="gdal_contour_example"></a> EXAMPLE</h1> <p>This would create 10meter contours from the DEM data in dem.tif and produce a shapefile in contour.shp/shx/dbf with the contour elevations in the "elev" attribute.</p> <pre class="fragment">gdal_contour -a elev dem.tif contour.shp -i 10.0 </pre> </div></div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/> </a> 1.8.5 </small></address> </body> </html>