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<h1>cpl_quad_tree.h</h1><a href="cpl__quad__tree_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/**********************************************************************</span>
<a name="l00002"></a>00002 <span class="comment"> * $Id: cpl_quad_tree.h 15067 2008-07-28 22:08:58Z rouault $</span>
<a name="l00003"></a>00003 <span class="comment"> *</span>
<a name="l00004"></a>00004 <span class="comment"> * Project: CPL - Common Portability Library</span>
<a name="l00005"></a>00005 <span class="comment"> * Purpose: Implementation of quadtree building and searching functions.</span>
<a name="l00006"></a>00006 <span class="comment"> * Derived from shapelib and mapserver implementations</span>
<a name="l00007"></a>00007 <span class="comment"> * Author: Frank Warmerdam, warmerdam@pobox.com</span>
<a name="l00008"></a>00008 <span class="comment"> * Even Rouault, <even dot rouault at mines dash paris dot org></span>
<a name="l00009"></a>00009 <span class="comment"> *</span>
<a name="l00010"></a>00010 <span class="comment"> ******************************************************************************</span>
<a name="l00011"></a>00011 <span class="comment"> * Copyright (c) 1999-2008, Frank Warmerdam</span>
<a name="l00012"></a>00012 <span class="comment"> *</span>
<a name="l00013"></a>00013 <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a</span>
<a name="l00014"></a>00014 <span class="comment"> * copy of this software and associated documentation files (the "Software"),</span>
<a name="l00015"></a>00015 <span class="comment"> * to deal in the Software without restriction, including without limitation</span>
<a name="l00016"></a>00016 <span class="comment"> * the rights to use, copy, modify, merge, publish, distribute, sublicense,</span>
<a name="l00017"></a>00017 <span class="comment"> * and/or sell copies of the Software, and to permit persons to whom the</span>
<a name="l00018"></a>00018 <span class="comment"> * Software is furnished to do so, subject to the following conditions:</span>
<a name="l00019"></a>00019 <span class="comment"> * </span>
<a name="l00020"></a>00020 <span class="comment"> * The above copyright notice and this permission notice shall be included</span>
<a name="l00021"></a>00021 <span class="comment"> * in all copies or substantial portions of the Software.</span>
<a name="l00022"></a>00022 <span class="comment"> * </span>
<a name="l00023"></a>00023 <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span>
<a name="l00024"></a>00024 <span class="comment"> * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span>
<a name="l00025"></a>00025 <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL</span>
<a name="l00026"></a>00026 <span class="comment"> * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span>
<a name="l00027"></a>00027 <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING</span>
<a name="l00028"></a>00028 <span class="comment"> * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER </span>
<a name="l00029"></a>00029 <span class="comment"> * DEALINGS IN THE SOFTWARE.</span>
<a name="l00030"></a>00030 <span class="comment"> ****************************************************************************/</span>
<a name="l00031"></a>00031
<a name="l00032"></a>00032 <span class="preprocessor">#ifndef _CPL_QUAD_TREE_H_INCLUDED</span>
<a name="l00033"></a>00033 <span class="preprocessor"></span><span class="preprocessor">#define _CPL_QUAD_TREE_H_INCLUDED</span>
<a name="l00034"></a>00034 <span class="preprocessor"></span>
<a name="l00035"></a>00035 <span class="preprocessor">#include "<a class="code" href="cpl__port_8h.html">cpl_port.h</a>"</span>
<a name="l00036"></a>00036
<a name="l00048"></a>00048 CPL_C_START
<a name="l00049"></a>00049
<a name="l00050"></a>00050 <span class="comment">/* Types */</span>
<a name="l00051"></a>00051
<a name="l00052"></a><a class="code" href="structCPLRectObj.html">00052</a> <span class="keyword">typedef</span> <span class="keyword">struct </span>{
<a name="l00053"></a>00053 <span class="keywordtype">double</span> minx, miny, maxx, maxy;
<a name="l00054"></a>00054 } <a class="code" href="structCPLRectObj.html">CPLRectObj</a>;
<a name="l00055"></a>00055
<a name="l00056"></a>00056 <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="struct__CPLQuadTree.html">_CPLQuadTree</a> <a class="code" href="struct__CPLQuadTree.html">CPLQuadTree</a>;
<a name="l00057"></a>00057
<a name="l00058"></a>00058 <span class="keyword">typedef</span> void (*CPLQuadTreeGetBoundsFunc)(<span class="keyword">const</span> <span class="keywordtype">void</span>* hFeature, <a class="code" href="structCPLRectObj.html">CPLRectObj</a>* pBounds);
<a name="l00059"></a>00059 <span class="keyword">typedef</span> int (*CPLQuadTreeForeachFunc)(<span class="keywordtype">void</span>* pElt, <span class="keywordtype">void</span>* pUserData);
<a name="l00060"></a>00060 <span class="keyword">typedef</span> void (*CPLQuadTreeDumpFeatureFunc)(<span class="keyword">const</span> <span class="keywordtype">void</span>* hFeature, <span class="keywordtype">int</span> nIndentLevel, <span class="keywordtype">void</span>* pUserData);
<a name="l00061"></a>00061
<a name="l00062"></a>00062 <span class="comment">/* Functions */</span>
<a name="l00063"></a>00063
<a name="l00064"></a>00064 <a class="code" href="struct__CPLQuadTree.html">CPLQuadTree</a> CPL_DLL *CPLQuadTreeCreate(<span class="keyword">const</span> <a class="code" href="structCPLRectObj.html">CPLRectObj</a>* pGlobalBounds,
<a name="l00065"></a>00065 CPLQuadTreeGetBoundsFunc pfnGetBounds);
<a name="l00066"></a>00066 <span class="keywordtype">void</span> CPL_DLL CPLQuadTreeDestroy(<a class="code" href="struct__CPLQuadTree.html">CPLQuadTree</a> *hQuadtree);
<a name="l00067"></a>00067
<a name="l00068"></a>00068 <span class="keywordtype">void</span> CPL_DLL CPLQuadTreeSetBucketCapacity(<a class="code" href="struct__CPLQuadTree.html">CPLQuadTree</a> *hQuadtree,
<a name="l00069"></a>00069 <span class="keywordtype">int</span> nBucketCapacity);
<a name="l00070"></a>00070 <span class="keywordtype">int</span> CPL_DLL CPLQuadTreeGetAdvisedMaxDepth(<span class="keywordtype">int</span> nExpectedFeatures);
<a name="l00071"></a>00071 <span class="keywordtype">void</span> CPL_DLL CPLQuadTreeSetMaxDepth(<a class="code" href="struct__CPLQuadTree.html">CPLQuadTree</a> *hQuadtree,
<a name="l00072"></a>00072 <span class="keywordtype">int</span> nMaxDepth);
<a name="l00073"></a>00073
<a name="l00074"></a>00074 <span class="keywordtype">void</span> CPL_DLL CPLQuadTreeInsert(<a class="code" href="struct__CPLQuadTree.html">CPLQuadTree</a> *hQuadtree,
<a name="l00075"></a>00075 <span class="keywordtype">void</span>* hFeature);
<a name="l00076"></a>00076
<a name="l00077"></a>00077 <span class="keywordtype">void</span> CPL_DLL **CPLQuadTreeSearch(<span class="keyword">const</span> <a class="code" href="struct__CPLQuadTree.html">CPLQuadTree</a> *hQuadtree,
<a name="l00078"></a>00078 <span class="keyword">const</span> <a class="code" href="structCPLRectObj.html">CPLRectObj</a>* pAoi,
<a name="l00079"></a>00079 <span class="keywordtype">int</span>* pnFeatureCount);
<a name="l00080"></a>00080
<a name="l00081"></a>00081 <span class="keywordtype">void</span> CPL_DLL CPLQuadTreeForeach(<span class="keyword">const</span> <a class="code" href="struct__CPLQuadTree.html">CPLQuadTree</a> *hQuadtree,
<a name="l00082"></a>00082 CPLQuadTreeForeachFunc pfnForeach,
<a name="l00083"></a>00083 <span class="keywordtype">void</span>* pUserData);
<a name="l00084"></a>00084
<a name="l00085"></a>00085 <span class="keywordtype">void</span> CPL_DLL CPLQuadTreeDump(<span class="keyword">const</span> <a class="code" href="struct__CPLQuadTree.html">CPLQuadTree</a> *hQuadtree,
<a name="l00086"></a>00086 CPLQuadTreeDumpFeatureFunc pfnDumpFeatureFunc,
<a name="l00087"></a>00087 <span class="keywordtype">void</span>* pUserData);
<a name="l00088"></a>00088 <span class="keywordtype">void</span> CPL_DLL CPLQuadTreeGetStats(<span class="keyword">const</span> <a class="code" href="struct__CPLQuadTree.html">CPLQuadTree</a> *hQuadtree,
<a name="l00089"></a>00089 <span class="keywordtype">int</span>* pnFeatureCount,
<a name="l00090"></a>00090 <span class="keywordtype">int</span>* pnNodeCount,
<a name="l00091"></a>00091 <span class="keywordtype">int</span>* pnMaxDepth,
<a name="l00092"></a>00092 <span class="keywordtype">int</span>* pnMaxBucketCapacity);
<a name="l00093"></a>00093
<a name="l00094"></a>00094 CPL_C_END
<a name="l00095"></a>00095
<a name="l00096"></a>00096 <span class="preprocessor">#endif</span>
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