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<h1>NodeBase.h</h1> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/**********************************************************************</span>
<a name="l00002"></a>00002 <span class="comment"> * $Id: NodeBase.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/NodeBase.java rev 1.9 (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_NODEBASE_H</span>
<a name="l00021"></a>00021 <span class="preprocessor"></span><span class="preprocessor">#define GEOS_IDX_QUADTREE_NODEBASE_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 <vector></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <string></span>
<a name="l00026"></a>00026
<a name="l00027"></a>00027 <span class="comment">// Forward declarations</span>
<a name="l00028"></a>00028 <span class="keyword">namespace </span>geos {
<a name="l00029"></a>00029 <span class="keyword">namespace </span>geom {
<a name="l00030"></a>00030 <span class="keyword">class </span>Coordinate;
<a name="l00031"></a>00031 <span class="keyword">class </span>Envelope;
<a name="l00032"></a>00032 }
<a name="l00033"></a>00033 <span class="keyword">namespace </span>index {
<a name="l00034"></a>00034 <span class="keyword">class </span>ItemVisitor;
<a name="l00035"></a>00035 <span class="keyword">namespace </span>quadtree {
<a name="l00036"></a>00036 <span class="keyword">class </span>Node;
<a name="l00037"></a>00037 }
<a name="l00038"></a>00038 }
<a name="l00039"></a>00039 }
<a name="l00040"></a>00040
<a name="l00041"></a>00041 <span class="keyword">namespace </span>geos {
<a name="l00042"></a>00042 <span class="keyword">namespace </span>index { <span class="comment">// geos::index</span>
<a name="l00043"></a>00043 <span class="keyword">namespace </span>quadtree { <span class="comment">// geos::index::quadtree</span>
<a name="l00044"></a>00044
<a name="l00050"></a><a class="code" href="classgeos_1_1index_1_1quadtree_1_1NodeBase.html">00050</a> <span class="keyword">class </span>GEOS_DLL <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="l00051"></a>00051
<a name="l00052"></a>00052 <span class="keyword">private</span>:
<a name="l00053"></a>00053
<a name="l00054"></a>00054 <span class="keywordtype">void</span> visitItems(<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="l00055"></a>00055 <a class="code" href="classgeos_1_1index_1_1ItemVisitor.html" title="A visitor for items in an index.">ItemVisitor</a>& visitor);
<a name="l00056"></a>00056
<a name="l00057"></a>00057 <span class="keyword">public</span>:
<a name="l00058"></a>00058
<a name="l00059"></a>00059 <span class="keyword">static</span> <span class="keywordtype">int</span> getSubnodeIndex(<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="l00060"></a>00060 <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>& centre);
<a name="l00061"></a>00061
<a name="l00062"></a>00062 <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="l00063"></a>00063
<a name="l00064"></a>00064 <span class="keyword">virtual</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="l00065"></a>00065
<a name="l00066"></a>00066 std::vector<void*>& getItems();
<a name="l00067"></a>00067
<a name="l00070"></a>00070 <span class="keywordtype">void</span> add(<span class="keywordtype">void</span>* item);
<a name="l00071"></a>00071
<a name="l00073"></a>00073 std::vector<void*>& addAllItems(std::vector<void*>& resultItems) <span class="keyword">const</span>;
<a name="l00074"></a>00074
<a name="l00075"></a>00075 <span class="keyword">virtual</span> <span class="keywordtype">void</span> addAllItemsFromOverlapping(<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="l00076"></a>00076 std::vector<void*>& resultItems) <span class="keyword">const</span>;
<a name="l00077"></a>00077
<a name="l00078"></a>00078 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> depth() <span class="keyword">const</span>;
<a name="l00079"></a>00079
<a name="l00080"></a>00080 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> size() <span class="keyword">const</span>;
<a name="l00081"></a>00081
<a name="l00082"></a>00082 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getNodeCount() <span class="keyword">const</span>;
<a name="l00083"></a>00083
<a name="l00084"></a>00084 <span class="keyword">virtual</span> std::string toString() <span class="keyword">const</span>;
<a name="l00085"></a>00085
<a name="l00086"></a>00086 <span class="keyword">virtual</span> <span class="keywordtype">void</span> visit(<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 class="code" href="classgeos_1_1index_1_1ItemVisitor.html" title="A visitor for items in an index.">ItemVisitor</a>& visitor);
<a name="l00087"></a>00087
<a name="l00095"></a>00095 <span class="keywordtype">bool</span> <span class="keyword">remove</span>(<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>* itemEnv, <span class="keywordtype">void</span>* item);
<a name="l00096"></a>00096
<a name="l00097"></a>00097 <span class="keywordtype">bool</span> hasItems() <span class="keyword">const</span>;
<a name="l00098"></a>00098
<a name="l00099"></a>00099 <span class="keywordtype">bool</span> hasChildren() <span class="keyword">const</span>;
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <span class="keywordtype">bool</span> isPrunable() <span class="keyword">const</span>;
<a name="l00102"></a>00102
<a name="l00103"></a>00103 <span class="keyword">protected</span>:
<a name="l00104"></a>00104
<a name="l00106"></a><a class="code" href="classgeos_1_1index_1_1quadtree_1_1NodeBase.html#a56e32a714cf1120b06d323e6f35f732e">00106</a> std::vector<void*> items;
<a name="l00107"></a>00107
<a name="l00118"></a><a class="code" href="classgeos_1_1index_1_1quadtree_1_1NodeBase.html#aac005ed5f9aee3956d5ca10c1a6f914b">00118</a> <a class="code" href="classgeos_1_1index_1_1quadtree_1_1Node.html" title="Represents a node of a Quadtree.">Node</a>* subnode[4];
<a name="l00119"></a>00119
<a name="l00120"></a>00120 <span class="keyword">virtual</span> <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>=0;
<a name="l00121"></a>00121 };
<a name="l00122"></a>00122
<a name="l00123"></a>00123
<a name="l00124"></a>00124 <span class="comment">// INLINES, To be moved in NodeBase.inl</span>
<a name="l00125"></a>00125
<a name="l00126"></a>00126 <span class="keyword">inline</span> <span class="keywordtype">bool</span>
<a name="l00127"></a>00127 NodeBase::hasChildren()<span class="keyword"> const</span>
<a name="l00128"></a>00128 <span class="keyword"></span>{
<a name="l00129"></a>00129 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < 4; i++)
<a name="l00130"></a>00130 <span class="keywordflow">if</span> (<a class="code" href="classgeos_1_1index_1_1quadtree_1_1NodeBase.html#aac005ed5f9aee3956d5ca10c1a6f914b">subnode</a>[i]) <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00131"></a>00131 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00132"></a>00132 }
<a name="l00133"></a>00133
<a name="l00134"></a>00134 <span class="keyword">inline</span> <span class="keywordtype">bool</span>
<a name="l00135"></a>00135 NodeBase::isPrunable()<span class="keyword"> const</span>
<a name="l00136"></a>00136 <span class="keyword"></span>{
<a name="l00137"></a>00137 <span class="keywordflow">return</span> ! (hasChildren() || hasItems());
<a name="l00138"></a>00138 }
<a name="l00139"></a>00139
<a name="l00140"></a>00140 <span class="keyword">inline</span> <span class="keywordtype">bool</span>
<a name="l00141"></a>00141 NodeBase::hasItems()<span class="keyword"> const</span>
<a name="l00142"></a>00142 <span class="keyword"></span>{
<a name="l00143"></a>00143 <span class="keywordflow">return</span> ! <a class="code" href="classgeos_1_1index_1_1quadtree_1_1NodeBase.html#a56e32a714cf1120b06d323e6f35f732e" title="Actual items are NOT owned by this class.">items</a>.empty();
<a name="l00144"></a>00144 }
<a name="l00145"></a>00145
<a name="l00146"></a>00146 } <span class="comment">// namespace geos::index::quadtree</span>
<a name="l00147"></a>00147 } <span class="comment">// namespace geos::index</span>
<a name="l00148"></a>00148 } <span class="comment">// namespace geos</span>
<a name="l00149"></a>00149
<a name="l00150"></a>00150 <span class="preprocessor">#endif // GEOS_IDX_QUADTREE_NODEBASE_H</span>
<a name="l00151"></a>00151 <span class="preprocessor"></span>
<a name="l00152"></a>00152 <span class="comment">/**********************************************************************</span>
<a name="l00153"></a>00153 <span class="comment"> * $Log$</span>
<a name="l00154"></a>00154 <span class="comment"> * Revision 1.1 2006/03/22 12:22:50 strk</span>
<a name="l00155"></a>00155 <span class="comment"> * indexQuadtree.h split</span>
<a name="l00156"></a>00156 <span class="comment"> *</span>
<a name="l00157"></a>00157 <span class="comment"> **********************************************************************/</span>
<a name="l00158"></a>00158
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