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          <span>pgRouting Manual (2.1.0)</span></a></h1>
        <h2 class="heading"><span>Introduction</span></h2>
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  <div class="section" id="introduction">
<span id="id1"></span><h1>Introduction<a class="headerlink" href="#introduction" title="Permalink to this headline"></a></h1>
<p>pgRouting is an extension of <a class="reference external" href="http://postgis.net">PostGIS</a> and <a class="reference external" href="http://postgresql.org">PostgreSQL</a> geospatial database and adds routing and other network analysis functionality. A predecessor of pgRouting – pgDijkstra, written by Sylvain Pasche from <a class="reference external" href="http://camptocamp.com">Camptocamp</a>, was later extended by <a class="reference external" href="http://www.orkney.co.jp">Orkney</a> and renamed to pgRouting. The project is now supported and maintained by <a class="reference external" href="http://georepublic.info">Georepublic</a>, <a class="reference external" href="http://imaptools.com/">iMaptools</a> and a broad user community.</p>
<p>pgRouting is an <a class="reference external" href="http://wiki.osgeo.org/wiki/OSGeo_Labs">OSGeo Labs</a> project of the <a class="reference external" href="http://osgeo.org">OSGeo Foundation</a> and included on <a class="reference external" href="http://live.osgeo.org/">OSGeo Live</a>.</p>
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<tr class="row-even"><td>GNU General Public License, version 2</td>
<td>Most features of pgRouting are available under <a class="reference external" href="http://www.gnu.org/licenses/gpl-2.0.html">GNU General Public License, version 2</a>.</td>
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<tr class="row-odd"><td>Boost Software License - Version 1.0</td>
<td>Some Boost extensions are available under <a class="reference external" href="http://www.boost.org/LICENSE_1_0.txt">Boost Software License - Version 1.0</a>.</td>
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<td>Some code contributed by iMaptools.com is available under MIT-X license.</td>
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<tr class="row-odd"><td>Creative Commons Attribution-Share Alike 3.0 License</td>
<td>The pgRouting Manual is licensed under a <a class="reference external" href="http://creativecommons.org/licenses/by-sa/3.0/">Creative Commons Attribution-Share Alike 3.0 License</a>.</td>
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<div class="section" id="contributors">
<h2>Contributors<a class="headerlink" href="#contributors" title="Permalink to this headline"></a></h2>
<div class="section" id="individuals-in-alphabetical-order">
<h3>Individuals (in alphabetical order)<a class="headerlink" href="#individuals-in-alphabetical-order" title="Permalink to this headline"></a></h3>
<blockquote>
<div>Akio Takubo, Anton Patrushev, Ashraf Hossain, Christian Gonzalez, Daniel Kastl, Dave Potts, David Techer, Ema Miyawaki, Florian Thurkow, Frederic Junod, Gerald Fenoy, Jay Mahadeokar, Jinfu Leng, Kai Behncke, Kishore Kumar, Ko Nagase, Mario Basa, Martin Wiesenhaan, Razequl Islam, Stephen Woodbridge, Sylvain Housseman, Sylvain Pasche, Virginia Vergara</div></blockquote>
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<h3>Corporate Sponsors (in alphabetical order)<a class="headerlink" href="#corporate-sponsors-in-alphabetical-order" title="Permalink to this headline"></a></h3>
<p>These are corporate entities that have contributed developer time, hosting, or direct monetary funding to the pgRouting project:</p>
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<li>Camptocamp</li>
<li>CSIS (University of Tokyo)</li>
<li>Georepublic</li>
<li>Google Summer of Code</li>
<li>iMaptools</li>
<li>Orkney</li>
<li>Paragon Corporation</li>
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<h2>More Information<a class="headerlink" href="#more-information" title="Permalink to this headline"></a></h2>
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<li>The latest software, documentation and news items are available at the pgRouting web site <a class="reference external" href="http://pgrouting.org">http://pgrouting.org</a>.</li>
<li>PostgreSQL database server at the PostgreSQL main site <a class="reference external" href="http://www.postgresql.org">http://www.postgresql.org</a>.</li>
<li>PostGIS extension at the PostGIS project web site <a class="reference external" href="http://postgis.net">http://postgis.net</a>.</li>
<li>Boost C++ source libraries at <a class="reference external" href="http://www.boost.org">http://www.boost.org</a>.</li>
<li>Computational Geometry Algorithms Library (CGAL) at <a class="reference external" href="http://www.cgal.org">http://www.cgal.org</a>.</li>
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