<!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"/> <title>GEOS: ConvexHull.h Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="doxygen.css" rel="stylesheet" type="text/css"/> </head> <body> <!-- Generated by Doxygen 1.7.1 --> <div class="navigation" id="top"> <div class="tabs"> <ul class="tablist"> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> <li><a href="namespaces.html"><span>Namespaces</span></a></li> <li><a href="annotated.html"><span>Classes</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul> </div> <div class="tabs2"> <ul class="tablist"> <li><a href="files.html"><span>File List</span></a></li> </ul> </div> <div class="header"> <div class="headertitle"> <h1>ConvexHull.h</h1> </div> </div> <div class="contents"> <div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/**********************************************************************</span> <a name="l00002"></a>00002 <span class="comment"> * $Id: ConvexHull.h 2556 2009-06-06 22:22:28Z strk $</span> <a name="l00003"></a>00003 <span class="comment"> *</span> <a name="l00004"></a>00004 <span class="comment"> * GEOS - Geometry Engine Open Source</span> <a name="l00005"></a>00005 <span class="comment"> * http://geos.refractions.net</span> <a name="l00006"></a>00006 <span class="comment"> *</span> <a name="l00007"></a>00007 <span class="comment"> * Copyright (C) 2005-2006 Refractions Research Inc.</span> <a name="l00008"></a>00008 <span class="comment"> * Copyright (C) 2001-2002 Vivid Solutions Inc.</span> <a name="l00009"></a>00009 <span class="comment"> *</span> <a name="l00010"></a>00010 <span class="comment"> * This is free software; you can redistribute and/or modify it under</span> <a name="l00011"></a>00011 <span class="comment"> * the terms of the GNU Lesser General Public Licence as published</span> <a name="l00012"></a>00012 <span class="comment"> * by the Free Software Foundation. </span> <a name="l00013"></a>00013 <span class="comment"> * See the COPYING file for more information.</span> <a name="l00014"></a>00014 <span class="comment"> *</span> <a name="l00015"></a>00015 <span class="comment"> **********************************************************************/</span> <a name="l00016"></a>00016 <a name="l00017"></a>00017 <span class="preprocessor">#ifndef GEOS_ALGORITHM_CONVEXHULL_H</span> <a name="l00018"></a>00018 <span class="preprocessor"></span><span class="preprocessor">#define GEOS_ALGORITHM_CONVEXHULL_H</span> <a name="l00019"></a>00019 <span class="preprocessor"></span> <a name="l00020"></a>00020 <span class="preprocessor">#include <geos/export.h></span> <a name="l00021"></a>00021 <span class="preprocessor">#include <vector></span> <a name="l00022"></a>00022 <a name="l00023"></a>00023 <span class="comment">// FIXME: avoid using Cordinate:: typedefs to avoid full include</span> <a name="l00024"></a>00024 <span class="preprocessor">#include <geos/geom/Coordinate.h></span> <a name="l00025"></a>00025 <a name="l00026"></a>00026 <span class="comment">// Forward declarations</span> <a name="l00027"></a>00027 <span class="keyword">namespace </span>geos { <a name="l00028"></a>00028 <span class="keyword">namespace </span>geom { <a name="l00029"></a>00029 <span class="keyword">class </span>Geometry; <a name="l00030"></a>00030 <span class="keyword">class </span>GeometryFactory; <a name="l00031"></a>00031 <span class="keyword">class </span>CoordinateSequence; <a name="l00032"></a>00032 } <a name="l00033"></a>00033 } <a name="l00034"></a>00034 <a name="l00035"></a>00035 <span class="keyword">namespace </span>geos { <a name="l00036"></a>00036 <span class="keyword">namespace </span>algorithm { <span class="comment">// geos::algorithm</span> <a name="l00037"></a>00037 <a name="l00049"></a><a class="code" href="classgeos_1_1algorithm_1_1ConvexHull.html">00049</a> <span class="keyword">class </span>GEOS_DLL <a class="code" href="classgeos_1_1algorithm_1_1ConvexHull.html">ConvexHull</a> { <a name="l00050"></a>00050 <span class="keyword">private</span>: <a name="l00051"></a>00051 <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1GeometryFactory.html" title="Supplies a set of utility methods for building Geometry objects from CoordinateSequence or other Geom...">geom::GeometryFactory</a> *geomFactory; <a name="l00052"></a>00052 <a class="code" href="classgeos_1_1geom_1_1Coordinate.html#a1735d833ea7d033b82c317f883948525" title="A vector of const Coordinate pointers.">geom::Coordinate::ConstVect</a> inputPts; <a name="l00053"></a>00053 <a name="l00054"></a>00054 <span class="keywordtype">void</span> extractCoordinates(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a> *geom); <a name="l00055"></a>00055 <a name="l00060"></a>00060 <a class="code" href="classgeos_1_1geom_1_1CoordinateSequence.html" title="The internal representation of a list of coordinates inside a Geometry.">geom::CoordinateSequence</a> *toCoordinateSequence(<a class="code" href="classgeos_1_1geom_1_1Coordinate.html#a1735d833ea7d033b82c317f883948525" title="A vector of const Coordinate pointers.">geom::Coordinate::ConstVect</a> &cv); <a name="l00061"></a>00061 <a name="l00062"></a>00062 <span class="keywordtype">void</span> computeOctPts(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html#a1735d833ea7d033b82c317f883948525" title="A vector of const Coordinate pointers.">geom::Coordinate::ConstVect</a> &src, <a name="l00063"></a>00063 <a class="code" href="classgeos_1_1geom_1_1Coordinate.html#a1735d833ea7d033b82c317f883948525" title="A vector of const Coordinate pointers.">geom::Coordinate::ConstVect</a> &tgt); <a name="l00064"></a>00064 <a name="l00065"></a>00065 <span class="keywordtype">bool</span> computeOctRing(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html#a1735d833ea7d033b82c317f883948525" title="A vector of const Coordinate pointers.">geom::Coordinate::ConstVect</a> &src, <a name="l00066"></a>00066 <a class="code" href="classgeos_1_1geom_1_1Coordinate.html#a1735d833ea7d033b82c317f883948525" title="A vector of const Coordinate pointers.">geom::Coordinate::ConstVect</a> &tgt); <a name="l00067"></a>00067 <a name="l00090"></a>00090 <span class="keywordtype">void</span> reduce(<a class="code" href="classgeos_1_1geom_1_1Coordinate.html#a1735d833ea7d033b82c317f883948525" title="A vector of const Coordinate pointers.">geom::Coordinate::ConstVect</a> &pts); <a name="l00091"></a>00091 <a name="l00092"></a>00092 <a name="l00094"></a>00094 <span class="keywordtype">void</span> preSort(<a class="code" href="classgeos_1_1geom_1_1Coordinate.html#a1735d833ea7d033b82c317f883948525" title="A vector of const Coordinate pointers.">geom::Coordinate::ConstVect</a> &pts); <a name="l00095"></a>00095 <a name="l00113"></a>00113 <span class="keywordtype">int</span> polarCompare(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates.">geom::Coordinate</a> &o, <a name="l00114"></a>00114 <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates.">geom::Coordinate</a> &p, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates.">geom::Coordinate</a> &q); <a name="l00115"></a>00115 <a name="l00116"></a>00116 <span class="keywordtype">void</span> grahamScan(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html#a1735d833ea7d033b82c317f883948525" title="A vector of const Coordinate pointers.">geom::Coordinate::ConstVect</a> &c, <a name="l00117"></a>00117 <a class="code" href="classgeos_1_1geom_1_1Coordinate.html#a1735d833ea7d033b82c317f883948525" title="A vector of const Coordinate pointers.">geom::Coordinate::ConstVect</a> &ps); <a name="l00118"></a>00118 <a name="l00128"></a>00128 <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a>* lineOrPolygon(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html#a1735d833ea7d033b82c317f883948525" title="A vector of const Coordinate pointers.">geom::Coordinate::ConstVect</a> &vertices); <a name="l00129"></a>00129 <a name="l00134"></a>00134 <span class="keywordtype">void</span> cleanRing(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html#a1735d833ea7d033b82c317f883948525" title="A vector of const Coordinate pointers.">geom::Coordinate::ConstVect</a> &input, <a name="l00135"></a>00135 <a class="code" href="classgeos_1_1geom_1_1Coordinate.html#a1735d833ea7d033b82c317f883948525" title="A vector of const Coordinate pointers.">geom::Coordinate::ConstVect</a> &cleaned); <a name="l00136"></a>00136 <a name="l00141"></a>00141 <span class="keywordtype">bool</span> isBetween(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates.">geom::Coordinate</a>& c1, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates.">geom::Coordinate</a>& c2, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates.">geom::Coordinate</a>& c3); <a name="l00142"></a>00142 <a name="l00143"></a>00143 <span class="keyword">public</span>: <a name="l00144"></a>00144 <a name="l00148"></a>00148 <a class="code" href="classgeos_1_1algorithm_1_1ConvexHull.html">ConvexHull</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a> *newGeometry); <a name="l00149"></a>00149 <a name="l00150"></a>00150 <a name="l00151"></a>00151 ~<a class="code" href="classgeos_1_1algorithm_1_1ConvexHull.html">ConvexHull</a>(); <a name="l00152"></a>00152 <a name="l00165"></a>00165 <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a>* getConvexHull(); <a name="l00166"></a>00166 }; <a name="l00167"></a>00167 <a name="l00168"></a>00168 } <span class="comment">// namespace geos::algorithm</span> <a name="l00169"></a>00169 } <span class="comment">// namespace geos</span> <a name="l00170"></a>00170 <a name="l00171"></a>00171 <span class="preprocessor">#ifdef GEOS_INLINE</span> <a name="l00172"></a>00172 <span class="preprocessor"></span><span class="preprocessor"># include "geos/algorithm/ConvexHull.inl"</span> <a name="l00173"></a>00173 <span class="preprocessor">#endif</span> <a name="l00174"></a>00174 <span class="preprocessor"></span> <a name="l00175"></a>00175 <span class="preprocessor">#endif // GEOS_ALGORITHM_CONVEXHULL_H</span> <a name="l00176"></a>00176 <span class="preprocessor"></span> <a name="l00177"></a>00177 <span class="comment">/**********************************************************************</span> <a name="l00178"></a>00178 <span class="comment"> * $Log$</span> <a name="l00179"></a>00179 <span class="comment"> * Revision 1.2 2006/03/24 09:52:41 strk</span> <a name="l00180"></a>00180 <span class="comment"> * USE_INLINE => GEOS_INLINE</span> <a name="l00181"></a>00181 <span class="comment"> *</span> <a name="l00182"></a>00182 <span class="comment"> * Revision 1.1 2006/03/09 16:46:48 strk</span> <a name="l00183"></a>00183 <span class="comment"> * geos::geom namespace definition, first pass at headers split</span> <a name="l00184"></a>00184 <span class="comment"> *</span> <a name="l00185"></a>00185 <span class="comment"> **********************************************************************/</span> <a name="l00186"></a>00186 </pre></div></div> </div> <hr class="footer"/><address class="footer"><small>Generated on Thu Jul 22 2010 for GEOS by <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.1 </small></address> </body> </html>