<!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: Node.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>Node.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: Node.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) 2006 Refractions Research Inc.</span> <a name="l00008"></a>00008 <span class="comment"> *</span> <a name="l00009"></a>00009 <span class="comment"> * This is free software; you can redistribute and/or modify it under</span> <a name="l00010"></a>00010 <span class="comment"> * the terms of the GNU Lesser General Public Licence as published</span> <a name="l00011"></a>00011 <span class="comment"> * by the Free Software Foundation. </span> <a name="l00012"></a>00012 <span class="comment"> * See the COPYING file for more information.</span> <a name="l00013"></a>00013 <span class="comment"> *</span> <a name="l00014"></a>00014 <span class="comment"> **********************************************************************</span> <a name="l00015"></a>00015 <span class="comment"> *</span> <a name="l00016"></a>00016 <span class="comment"> * Last port: index/quadtree/Node.java rev 1.8 (JTS-1.10)</span> <a name="l00017"></a>00017 <span class="comment"> *</span> <a name="l00018"></a>00018 <span class="comment"> **********************************************************************/</span> <a name="l00019"></a>00019 <a name="l00020"></a>00020 <span class="preprocessor">#ifndef GEOS_IDX_QUADTREE_NODE_H</span> <a name="l00021"></a>00021 <span class="preprocessor"></span><span class="preprocessor">#define GEOS_IDX_QUADTREE_NODE_H</span> <a name="l00022"></a>00022 <span class="preprocessor"></span> <a name="l00023"></a>00023 <span class="preprocessor">#include <geos/export.h></span> <a name="l00024"></a>00024 <span class="preprocessor">#include <geos/index/quadtree/NodeBase.h></span> <span class="comment">// for inheritance</span> <a name="l00025"></a>00025 <span class="preprocessor">#include <geos/geom/Coordinate.h></span> <span class="comment">// for composition</span> <a name="l00026"></a>00026 <span class="preprocessor">#include <geos/geom/Envelope.h></span> <span class="comment">// for inline</span> <a name="l00027"></a>00027 <a name="l00028"></a>00028 <span class="preprocessor">#include <string></span> <a name="l00029"></a>00029 <span class="preprocessor">#include <memory></span> <a name="l00030"></a>00030 <a name="l00031"></a>00031 <span class="comment">// Forward declarations</span> <a name="l00032"></a>00032 <span class="keyword">namespace </span>geos { <a name="l00033"></a>00033 <span class="keyword">namespace </span>geom { <a name="l00034"></a>00034 <span class="comment">//class Coordinate;</span> <a name="l00035"></a>00035 <span class="keyword">class </span>Envelope; <a name="l00036"></a>00036 } <a name="l00037"></a>00037 } <a name="l00038"></a>00038 <a name="l00039"></a>00039 <span class="keyword">namespace </span>geos { <a name="l00040"></a>00040 <span class="keyword">namespace </span>index { <span class="comment">// geos::index</span> <a name="l00041"></a>00041 <span class="keyword">namespace </span>quadtree { <span class="comment">// geos::index::quadtree</span> <a name="l00042"></a>00042 <a name="l00051"></a><a class="code" href="classgeos_1_1index_1_1quadtree_1_1Node.html">00051</a> <span class="keyword">class </span>GEOS_DLL <a class="code" href="classgeos_1_1index_1_1quadtree_1_1Node.html" title="Represents a node of a Quadtree.">Node</a>: <span class="keyword">public</span> <a class="code" href="classgeos_1_1index_1_1quadtree_1_1NodeBase.html" title="The base class for nodes in a Quadtree.">NodeBase</a> { <a name="l00052"></a>00052 <a name="l00053"></a>00053 <span class="keyword">private</span>: <a name="l00054"></a>00054 <a name="l00056"></a>00056 std::auto_ptr<geom::Envelope> env; <a name="l00057"></a>00057 <a name="l00058"></a>00058 <a class="code" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates.">geom::Coordinate</a> centre; <a name="l00059"></a>00059 <a name="l00060"></a>00060 <span class="keywordtype">int</span> level; <a name="l00061"></a>00061 <a name="l00068"></a>00068 <a class="code" href="classgeos_1_1index_1_1quadtree_1_1Node.html" title="Represents a node of a Quadtree.">Node</a>* getSubnode(<span class="keywordtype">int</span> index); <a name="l00069"></a>00069 <a name="l00070"></a>00070 std::auto_ptr<Node> createSubnode(<span class="keywordtype">int</span> index); <a name="l00071"></a>00071 <a name="l00072"></a>00072 <span class="keyword">protected</span>: <a name="l00073"></a>00073 <a name="l00074"></a>00074 <span class="keywordtype">bool</span> isSearchMatch(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Envelope.html" title="An Envelope defines a rectangulare region of the 2D coordinate plane.">geom::Envelope</a>& searchEnv)<span class="keyword"> const </span>{ <a name="l00075"></a>00075 <span class="keywordflow">return</span> env->intersects(searchEnv); <a name="l00076"></a>00076 } <a name="l00077"></a>00077 <a name="l00078"></a>00078 <span class="keyword">public</span>: <a name="l00079"></a>00079 <a name="l00080"></a>00080 <span class="comment">// Create a node computing level from given envelope</span> <a name="l00081"></a>00081 <span class="keyword">static</span> std::auto_ptr<Node> createNode(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Envelope.html" title="An Envelope defines a rectangulare region of the 2D coordinate plane.">geom::Envelope</a>& env); <a name="l00082"></a>00082 <a name="l00084"></a>00084 <span class="comment">//</span> <a name="l00088"></a>00088 <span class="comment"></span> <span class="keyword">static</span> std::auto_ptr<Node> createExpanded(std::auto_ptr<Node> node, <a name="l00089"></a>00089 <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Envelope.html" title="An Envelope defines a rectangulare region of the 2D coordinate plane.">geom::Envelope</a>& addEnv); <a name="l00090"></a>00090 <a name="l00091"></a>00091 <a class="code" href="classgeos_1_1index_1_1quadtree_1_1Node.html" title="Represents a node of a Quadtree.">Node</a>(std::auto_ptr<geom::Envelope> nenv, <span class="keywordtype">int</span> nlevel) <a name="l00092"></a>00092 : <a name="l00093"></a>00093 env(nenv), <a name="l00094"></a>00094 centre((env-><a class="code" href="classgeos_1_1geom_1_1Envelope.html#ad66764b72fd8a239a6081f7831e7def3">getMinX</a>()+env-><a class="code" href="classgeos_1_1geom_1_1Envelope.html#ac736024440af1b467ba2ba4308280b1b">getMaxX</a>())/2, <a name="l00095"></a>00095 (env-><a class="code" href="classgeos_1_1geom_1_1Envelope.html#ae8f01c5ddb0eb2aaeff5510eaebee3ab">getMinY</a>()+env-><a class="code" href="classgeos_1_1geom_1_1Envelope.html#afe346be1da764bd27d2769a64ed99fa6">getMaxY</a>())/2), <a name="l00096"></a>00096 level(nlevel) <a name="l00097"></a>00097 { <a name="l00098"></a>00098 } <a name="l00099"></a>00099 <a name="l00100"></a>00100 <span class="keyword">virtual</span> ~<a class="code" href="classgeos_1_1index_1_1quadtree_1_1Node.html" title="Represents a node of a Quadtree.">Node</a>() {} <a name="l00101"></a>00101 <a name="l00104"></a><a class="code" href="classgeos_1_1index_1_1quadtree_1_1Node.html#a36420223c53f2f816b332d19392d8eab">00104</a> <a class="code" href="classgeos_1_1geom_1_1Envelope.html" title="An Envelope defines a rectangulare region of the 2D coordinate plane.">geom::Envelope</a>* <a class="code" href="classgeos_1_1index_1_1quadtree_1_1Node.html#a36420223c53f2f816b332d19392d8eab">getEnvelope</a>() { <span class="keywordflow">return</span> env.get(); } <a name="l00105"></a>00105 <a name="l00111"></a>00111 <a class="code" href="classgeos_1_1index_1_1quadtree_1_1Node.html" title="Represents a node of a Quadtree.">Node</a>* getNode(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Envelope.html" title="An Envelope defines a rectangulare region of the 2D coordinate plane.">geom::Envelope</a> *searchEnv); <a name="l00112"></a>00112 <a name="l00117"></a>00117 <a class="code" href="classgeos_1_1index_1_1quadtree_1_1NodeBase.html" title="The base class for nodes in a Quadtree.">NodeBase</a>* find(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Envelope.html" title="An Envelope defines a rectangulare region of the 2D coordinate plane.">geom::Envelope</a> *searchEnv); <a name="l00118"></a>00118 <a name="l00119"></a>00119 <span class="keywordtype">void</span> insertNode(std::auto_ptr<Node> node); <a name="l00120"></a>00120 <a name="l00121"></a>00121 std::string toString() <span class="keyword">const</span>; <a name="l00122"></a>00122 <a name="l00123"></a>00123 }; <a name="l00124"></a>00124 <a name="l00125"></a>00125 } <span class="comment">// namespace geos::index::quadtree</span> <a name="l00126"></a>00126 } <span class="comment">// namespace geos::index</span> <a name="l00127"></a>00127 } <span class="comment">// namespace geos</span> <a name="l00128"></a>00128 <a name="l00129"></a>00129 <span class="preprocessor">#endif // GEOS_IDX_QUADTREE_NODE_H</span> <a name="l00130"></a>00130 <span class="preprocessor"></span> <a name="l00131"></a>00131 <span class="comment">/**********************************************************************</span> <a name="l00132"></a>00132 <span class="comment"> * $Log$</span> <a name="l00133"></a>00133 <span class="comment"> * Revision 1.1 2006/03/22 12:22:50 strk</span> <a name="l00134"></a>00134 <span class="comment"> * indexQuadtree.h split</span> <a name="l00135"></a>00135 <span class="comment"> *</span> <a name="l00136"></a>00136 <span class="comment"> **********************************************************************/</span> <a name="l00137"></a>00137 </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>