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| <div class="titlepage"><div><div><h2 class="title" style="clear: both"> |
| <a name="geometry.introduction"></a><a class="link" href="introduction.html" title="Introduction">Introduction</a> |
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| <p> |
| Boost.Geometry (aka Generic Geometry Library, GGL), part of collection of the |
| Boost C++ Libraries, defines concepts, primitives and algorithms for solving |
| geometry problems. |
| </p> |
| <p> |
| Boost.Geometry contains a dimension-agnostic, coordinate-system-agnostic and |
| scalable kernel, based on concepts, meta-functions and tag dispatching. On |
| top of that kernel, algorithms are built: area, length, perimeter, centroid, |
| convex hull, intersection (clipping), within (point in polygon), distance, |
| envelope (bounding box), simplify, transform, and much more. The library supports |
| high precision arithmetic numbers, such as <a href="http://www.ttmath.org/" target="_top">ttmath</a>. |
| </p> |
| <p> |
| Boost.Geometry contains instantiable geometry classes, but library users can |
| also use their own. Using registration macros or traits classes their geometries |
| can be adapted to fulfil Boost.Geometry concepts. |
| </p> |
| <p> |
| Boost.Geometry might be used in all domains where geometry plays a role: mapping |
| and GIS, game development, computer graphics and widgets, robotics, astronomy |
| and more. The core is designed to be as generic as possible and support those |
| domains. For now, the development has been mostly GIS-oriented. |
| </p> |
| <p> |
| The library follows existing conventions: |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| conventions from boost |
| </li> |
| <li class="listitem"> |
| conventions from the std library |
| </li> |
| <li class="listitem"> |
| conventions and names from one of the <a href="http://www.opengeospatial.org" target="_top">OGC</a> |
| standards on geometry |
| </li> |
| </ul></div> |
| <p> |
| The library can be downloaded from <a href="http://svn.boost.org/svn/boost/trunk" target="_top">Boost.Trunk</a>, |
| from <a href="http://svn.boost.org/svn/boost/branches/release" target="_top">Boost.Release</a>, |
| or will come to you by the normal Boost distribution process. Note that <span class="bold"><strong>extensions</strong></span> are only distributed in Boost.Trunk, and |
| that they are subject to change. |
| </p> |
| <p> |
| Boost.Geometry was accepted by Boost at November 28, 2009 (<a href="http://permalink.gmane.org/gmane.comp.lib.boost.announce/246" target="_top">review |
| report</a>). |
| </p> |
| <p> |
| There are two mailing lists where Boost.Geometry is discussed: the boost developers |
| list, and also the <a href="http://lists.osgeo.org/mailman/listinfo/ggl" target="_top">GGL |
| mailing list</a> at osgeo, at which, at the moment of writing, more than |
| 70 people are subscribed. The mailing list is also accessible from <a href="http://boost-geometry.203548.n3.nabble.com/" target="_top">Nabble</a> |
| as Boost Geometry. |
| </p> |
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| <td align="right"><div class="copyright-footer">Copyright © 2011 Barend Gehrels, Bruno Lalande, Mateusz Loskot<p> |
| Distributed under the Boost Software License, Version 1.0. (See accompanying |
| file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) |
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