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<h1>TaggedLinesSimplifier.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: TaggedLinesSimplifier.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/TaggedLinesSimplifier.java rev. 1.4 (JTS-1.7.1)</span>
<a name="l00017"></a>00017 <span class="comment"> *</span>
<a name="l00018"></a>00018 <span class="comment"> **********************************************************************</span>
<a name="l00019"></a>00019 <span class="comment"> *</span>
<a name="l00020"></a>00020 <span class="comment"> * NOTES: changed from JTS design adding a private</span>
<a name="l00021"></a>00021 <span class="comment"> * TaggedLineStringSimplifier member and making</span>
<a name="l00022"></a>00022 <span class="comment"> * simplify(collection) method become a templated</span>
<a name="l00023"></a>00023 <span class="comment"> * function.</span>
<a name="l00024"></a>00024 <span class="comment"> *</span>
<a name="l00025"></a>00025 <span class="comment"> **********************************************************************/</span>
<a name="l00026"></a>00026
<a name="l00027"></a>00027 <span class="preprocessor">#ifndef GEOS_SIMPLIFY_TAGGEDLINESSIMPLIFIER_H</span>
<a name="l00028"></a>00028 <span class="preprocessor"></span><span class="preprocessor">#define GEOS_SIMPLIFY_TAGGEDLINESSIMPLIFIER_H</span>
<a name="l00029"></a>00029 <span class="preprocessor"></span>
<a name="l00030"></a>00030 <span class="preprocessor">#include <geos/export.h></span>
<a name="l00031"></a>00031 <span class="preprocessor">#include <vector></span>
<a name="l00032"></a>00032 <span class="preprocessor">#include <memory></span>
<a name="l00033"></a>00033 <span class="preprocessor">#include <cassert></span>
<a name="l00034"></a>00034
<a name="l00035"></a>00035 <span class="preprocessor">#include <geos/simplify/LineSegmentIndex.h></span> <span class="comment">// for templated function body</span>
<a name="l00036"></a>00036 <span class="preprocessor">#include <geos/simplify/TaggedLineStringSimplifier.h></span>
<a name="l00037"></a>00037
<a name="l00038"></a>00038 <span class="comment">// Forward declarations</span>
<a name="l00039"></a>00039 <span class="keyword">namespace </span>geos {
<a name="l00040"></a>00040 <span class="keyword">namespace </span>simplify {
<a name="l00041"></a>00041 <span class="keyword">class </span>TaggedLineString;
<a name="l00042"></a>00042 }
<a name="l00043"></a>00043 }
<a name="l00044"></a>00044
<a name="l00045"></a>00045 <span class="keyword">namespace </span>geos {
<a name="l00046"></a>00046 <span class="keyword">namespace </span>simplify { <span class="comment">// geos::simplify</span>
<a name="l00047"></a>00047
<a name="l00052"></a><a class="code" href="classgeos_1_1simplify_1_1TaggedLinesSimplifier.html">00052</a> <span class="keyword">class </span>GEOS_DLL <a class="code" href="classgeos_1_1simplify_1_1TaggedLinesSimplifier.html" title="Simplifies a collection of TaggedLineStrings, preserving topology (in the sense that no new intersect...">TaggedLinesSimplifier</a> {
<a name="l00053"></a>00053
<a name="l00054"></a>00054 <span class="keyword">public</span>:
<a name="l00055"></a>00055
<a name="l00056"></a>00056 <a class="code" href="classgeos_1_1simplify_1_1TaggedLinesSimplifier.html" title="Simplifies a collection of TaggedLineStrings, preserving topology (in the sense that no new intersect...">TaggedLinesSimplifier</a>();
<a name="l00057"></a>00057
<a name="l00066"></a>00066 <span class="keywordtype">void</span> setDistanceTolerance(<span class="keywordtype">double</span> tolerance);
<a name="l00067"></a>00067
<a name="l00081"></a>00081 <span class="keyword">template</span> <<span class="keyword">class</span> iterator_type>
<a name="l00082"></a><a class="code" href="classgeos_1_1simplify_1_1TaggedLinesSimplifier.html#a44526e0154d12eb0cc1e49cf4ca551e2">00082</a> <span class="keywordtype">void</span> simplify(
<a name="l00083"></a>00083 iterator_type begin,
<a name="l00084"></a>00084 iterator_type end)
<a name="l00085"></a>00085 {
<a name="l00086"></a>00086 <span class="comment">// add lines to the index</span>
<a name="l00087"></a>00087 <span class="keywordflow">for</span> (iterator_type it=begin; it != end; ++it) {
<a name="l00088"></a>00088 assert(*it);
<a name="l00089"></a>00089 inputIndex->add(*(*it));
<a name="l00090"></a>00090 }
<a name="l00091"></a>00091
<a name="l00092"></a>00092 <span class="comment">// Simplify lines</span>
<a name="l00093"></a>00093 <span class="keywordflow">for</span> (iterator_type it=begin; it != end; ++it) {
<a name="l00094"></a>00094 assert(*it);
<a name="l00095"></a>00095 simplify(*(*it));
<a name="l00096"></a>00096 }
<a name="l00097"></a>00097 }
<a name="l00098"></a>00098
<a name="l00099"></a>00099
<a name="l00100"></a>00100 <span class="keyword">private</span>:
<a name="l00101"></a>00101
<a name="l00102"></a>00102 <span class="keywordtype">void</span> simplify(<a class="code" href="classgeos_1_1simplify_1_1TaggedLineString.html" title="Contains and owns a list of TaggedLineSegments.">TaggedLineString</a>& line);
<a name="l00103"></a>00103
<a name="l00104"></a>00104 std::auto_ptr<LineSegmentIndex> inputIndex;
<a name="l00105"></a>00105
<a name="l00106"></a>00106 std::auto_ptr<LineSegmentIndex> outputIndex;
<a name="l00107"></a>00107
<a name="l00108"></a>00108 std::auto_ptr<TaggedLineStringSimplifier> taggedlineSimplifier;
<a name="l00109"></a>00109
<a name="l00110"></a>00110 };
<a name="l00111"></a>00111
<a name="l00112"></a>00112
<a name="l00113"></a>00113 } <span class="comment">// namespace geos::simplify</span>
<a name="l00114"></a>00114 } <span class="comment">// namespace geos</span>
<a name="l00115"></a>00115
<a name="l00116"></a>00116 <span class="preprocessor">#endif // GEOS_SIMPLIFY_TAGGEDLINESSIMPLIFIER_H</span>
<a name="l00117"></a>00117 <span class="preprocessor"></span>
<a name="l00118"></a>00118 <span class="comment">/**********************************************************************</span>
<a name="l00119"></a>00119 <span class="comment"> * $Log$</span>
<a name="l00120"></a>00120 <span class="comment"> * Revision 1.4 2006/05/24 15:32:11 strk</span>
<a name="l00121"></a>00121 <span class="comment"> * * source/headers/geos/simplify/TaggedLinesSimplifier.h: added LineSegmentIndex.h include so that every use of the templated simplify() function get all the required definitions.</span>
<a name="l00122"></a>00122 <span class="comment"> *</span>
<a name="l00123"></a>00123 <span class="comment"> * Revision 1.3 2006/05/24 11:41:23 strk</span>
<a name="l00124"></a>00124 <span class="comment"> * * source/headers/geos/simplify/TaggedLinesSimplifier.h,</span>
<a name="l00125"></a>00125 <span class="comment"> * source/simplify/TaggedLinesSimplifier.cpp,</span>
<a name="l00126"></a>00126 <span class="comment"> * source/simplify/TopologyPreservingSimplifier.cpp:</span>
<a name="l00127"></a>00127 <span class="comment"> * fixed bug in TopologyPreservingSimplifier failing to</span>
<a name="l00128"></a>00128 <span class="comment"> * detect intersections, refactored TaggedLinesSimplifier</span>
<a name="l00129"></a>00129 <span class="comment"> * class to more closely match JTS and use templated</span>
<a name="l00130"></a>00130 <span class="comment"> * functions.</span>
<a name="l00131"></a>00131 <span class="comment"> *</span>
<a name="l00132"></a>00132 <span class="comment"> * Revision 1.2 2006/04/13 14:25:17 strk</span>
<a name="l00133"></a>00133 <span class="comment"> * TopologyPreservingSimplifier initial port</span>
<a name="l00134"></a>00134 <span class="comment"> *</span>
<a name="l00135"></a>00135 <span class="comment"> * Revision 1.1 2006/04/13 10:39:12 strk</span>
<a name="l00136"></a>00136 <span class="comment"> * Initial implementation of TaggedLinesSimplifier class</span>
<a name="l00137"></a>00137 <span class="comment"> *</span>
<a name="l00138"></a>00138 <span class="comment"> **********************************************************************/</span>
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