<!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: DouglasPeuckerLineSimplifier.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>DouglasPeuckerLineSimplifier.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: DouglasPeuckerLineSimplifier.h 2785 2009-12-03 19:55:11Z mloskot $</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 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: simplify/DouglasPeuckerLineSimplifier.java rev. 1.4</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_SIMPLIFY_DOUBGLASPEUCKERLINESIMPLIFIER_H</span>
<a name="l00021"></a>00021 <span class="preprocessor"></span><span class="preprocessor">#define GEOS_SIMPLIFY_DOUBGLASPEUCKERLINESIMPLIFIER_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 <memory></span> <span class="comment">// for auto_ptr</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 }
<a name="l00032"></a>00032 }
<a name="l00033"></a>00033
<a name="l00034"></a>00034 <span class="keyword">namespace </span>geos {
<a name="l00035"></a>00035 <span class="keyword">namespace </span>simplify { <span class="comment">// geos::simplify</span>
<a name="l00036"></a>00036
<a name="l00041"></a><a class="code" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html">00041</a> <span class="keyword">class </span>GEOS_DLL <a class="code" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html" title="Simplifies a linestring (sequence of points) using the standard Douglas-Peucker algorithm.">DouglasPeuckerLineSimplifier</a> {
<a name="l00042"></a>00042
<a name="l00043"></a>00043 <span class="keyword">public</span>:
<a name="l00044"></a>00044
<a name="l00045"></a>00045 <span class="keyword">typedef</span> std::vector<short int> BoolVect;
<a name="l00046"></a>00046 <span class="keyword">typedef</span> std::auto_ptr<BoolVect> BoolVectAutoPtr;
<a name="l00047"></a>00047
<a name="l00048"></a>00048 <span class="keyword">typedef</span> std::vector<geom::Coordinate> CoordsVect;
<a name="l00049"></a>00049 <span class="keyword">typedef</span> std::auto_ptr<CoordsVect> CoordsVectAutoPtr;
<a name="l00050"></a>00050
<a name="l00051"></a>00051
<a name="l00056"></a>00056 <span class="keyword">static</span> CoordsVectAutoPtr simplify(
<a name="l00057"></a>00057 <span class="keyword">const</span> CoordsVect& nPts,
<a name="l00058"></a>00058 <span class="keywordtype">double</span> distanceTolerance);
<a name="l00059"></a>00059
<a name="l00060"></a>00060 <a class="code" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html" title="Simplifies a linestring (sequence of points) using the standard Douglas-Peucker algorithm.">DouglasPeuckerLineSimplifier</a>(<span class="keyword">const</span> CoordsVect& nPts);
<a name="l00061"></a>00061
<a name="l00070"></a>00070 <span class="keywordtype">void</span> setDistanceTolerance(<span class="keywordtype">double</span> nDistanceTolerance);
<a name="l00071"></a>00071
<a name="l00076"></a>00076 CoordsVectAutoPtr simplify();
<a name="l00077"></a>00077
<a name="l00078"></a>00078 <span class="keyword">private</span>:
<a name="l00079"></a>00079
<a name="l00080"></a>00080 <span class="keyword">const</span> CoordsVect& pts;
<a name="l00081"></a>00081 BoolVectAutoPtr usePt;
<a name="l00082"></a>00082 <span class="keywordtype">double</span> distanceTolerance;
<a name="l00083"></a>00083
<a name="l00084"></a>00084 <span class="keywordtype">void</span> simplifySection(<span class="keywordtype">size_t</span> i, <span class="keywordtype">size_t</span> j);
<a name="l00085"></a>00085
<a name="l00086"></a>00086 <span class="comment">// Declare type as noncopyable</span>
<a name="l00087"></a>00087 <a class="code" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html" title="Simplifies a linestring (sequence of points) using the standard Douglas-Peucker algorithm.">DouglasPeuckerLineSimplifier</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html" title="Simplifies a linestring (sequence of points) using the standard Douglas-Peucker algorithm.">DouglasPeuckerLineSimplifier</a>& other);
<a name="l00088"></a>00088 <a class="code" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html" title="Simplifies a linestring (sequence of points) using the standard Douglas-Peucker algorithm.">DouglasPeuckerLineSimplifier</a>& operator=(<span class="keyword">const</span> <a class="code" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html" title="Simplifies a linestring (sequence of points) using the standard Douglas-Peucker algorithm.">DouglasPeuckerLineSimplifier</a>& rhs);
<a name="l00089"></a>00089 };
<a name="l00090"></a>00090
<a name="l00091"></a>00091 } <span class="comment">// namespace geos::simplify</span>
<a name="l00092"></a>00092 } <span class="comment">// namespace geos</span>
<a name="l00093"></a>00093
<a name="l00094"></a>00094 <span class="preprocessor">#endif // GEOS_SIMPLIFY_DOUBGLASPEUCKERLINESIMPLIFIER_H</span>
<a name="l00095"></a>00095 <span class="preprocessor"></span>
<a name="l00096"></a>00096 <span class="comment">/**********************************************************************</span>
<a name="l00097"></a>00097 <span class="comment"> * $Log$</span>
<a name="l00098"></a>00098 <span class="comment"> * Revision 1.4 2006/07/10 10:16:06 strk</span>
<a name="l00099"></a>00099 <span class="comment"> * changed vector<bool> to vector<short int> (see bug#101)</span>
<a name="l00100"></a>00100 <span class="comment"> *</span>
<a name="l00101"></a>00101 <span class="comment"> * Revision 1.3 2006/06/12 11:29:23 strk</span>
<a name="l00102"></a>00102 <span class="comment"> * unsigned int => size_t</span>
<a name="l00103"></a>00103 <span class="comment"> *</span>
<a name="l00104"></a>00104 <span class="comment"> * Revision 1.2 2006/04/13 10:39:12 strk</span>
<a name="l00105"></a>00105 <span class="comment"> * Initial implementation of TaggedLinesSimplifier class</span>
<a name="l00106"></a>00106 <span class="comment"> *</span>
<a name="l00107"></a>00107 <span class="comment"> * Revision 1.1 2006/04/03 10:16:11 strk</span>
<a name="l00108"></a>00108 <span class="comment"> * DouglasPeuckerLineSimplifier class port</span>
<a name="l00109"></a>00109 <span class="comment"> *</span>
<a name="l00110"></a>00110 <span class="comment"> **********************************************************************/</span>
</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>
