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<h1>TaggedLineStringSimplifier.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: TaggedLineStringSimplifier.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/TaggedLineStringSimplifier.java rev. 1.8 (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: This class can be optimized to work with vector<Coordinate*></span>
<a name="l00021"></a>00021 <span class="comment"> * rather then with CoordinateSequence</span>
<a name="l00022"></a>00022 <span class="comment"> *</span>
<a name="l00023"></a>00023 <span class="comment"> **********************************************************************/</span>
<a name="l00024"></a>00024
<a name="l00025"></a>00025 <span class="preprocessor">#ifndef GEOS_SIMPLIFY_TAGGEDLINESTRINGSIMPLIFIER_H</span>
<a name="l00026"></a>00026 <span class="preprocessor"></span><span class="preprocessor">#define GEOS_SIMPLIFY_TAGGEDLINESTRINGSIMPLIFIER_H</span>
<a name="l00027"></a>00027 <span class="preprocessor"></span>
<a name="l00028"></a>00028 <span class="preprocessor">#include <geos/export.h></span>
<a name="l00029"></a>00029 <span class="preprocessor">#include <vector></span>
<a name="l00030"></a>00030 <span class="preprocessor">#include <memory></span>
<a name="l00031"></a>00031
<a name="l00032"></a>00032 <span class="comment">// Forward declarations</span>
<a name="l00033"></a>00033 <span class="keyword">namespace </span>geos {
<a name="l00034"></a>00034 <span class="keyword">namespace </span>algorithm {
<a name="l00035"></a>00035 <span class="keyword">class </span>LineIntersector;
<a name="l00036"></a>00036 }
<a name="l00037"></a>00037 <span class="keyword">namespace </span>geom {
<a name="l00038"></a>00038 <span class="keyword">class </span>CoordinateSequence;
<a name="l00039"></a>00039 <span class="keyword">class </span>LineSegment;
<a name="l00040"></a>00040 }
<a name="l00041"></a>00041 <span class="keyword">namespace </span>simplify {
<a name="l00042"></a>00042 <span class="keyword">class </span>TaggedLineSegment;
<a name="l00043"></a>00043 <span class="keyword">class </span>TaggedLineString;
<a name="l00044"></a>00044 <span class="keyword">class </span>LineSegmentIndex;
<a name="l00045"></a>00045 }
<a name="l00046"></a>00046 }
<a name="l00047"></a>00047
<a name="l00048"></a>00048 <span class="keyword">namespace </span>geos {
<a name="l00049"></a>00049 <span class="keyword">namespace </span>simplify { <span class="comment">// geos::simplify</span>
<a name="l00050"></a>00050
<a name="l00051"></a>00051
<a name="l00058"></a><a class="code" href="classgeos_1_1simplify_1_1TaggedLineStringSimplifier.html">00058</a> <span class="keyword">class </span>GEOS_DLL <a class="code" href="classgeos_1_1simplify_1_1TaggedLineStringSimplifier.html" title="Simplifies a TaggedLineString, preserving topology (in the sense that no new intersections are introd...">TaggedLineStringSimplifier</a> {
<a name="l00059"></a>00059
<a name="l00060"></a>00060 <span class="keyword">public</span>:
<a name="l00061"></a>00061
<a name="l00062"></a>00062 <a class="code" href="classgeos_1_1simplify_1_1TaggedLineStringSimplifier.html" title="Simplifies a TaggedLineString, preserving topology (in the sense that no new intersections are introd...">TaggedLineStringSimplifier</a>(LineSegmentIndex* inputIndex,
<a name="l00063"></a>00063 LineSegmentIndex* outputIndex);
<a name="l00064"></a>00064
<a name="l00073"></a>00073 <span class="keywordtype">void</span> setDistanceTolerance(<span class="keywordtype">double</span> d);
<a name="l00074"></a>00074
<a name="l00075"></a>00075 <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="l00076"></a>00076
<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="comment">// externally owned</span>
<a name="l00081"></a>00081 LineSegmentIndex* inputIndex;
<a name="l00082"></a>00082
<a name="l00083"></a>00083 <span class="comment">// externally owned</span>
<a name="l00084"></a>00084 LineSegmentIndex* outputIndex;
<a name="l00085"></a>00085
<a name="l00086"></a>00086 std::auto_ptr<algorithm::LineIntersector> li;
<a name="l00087"></a>00087
<a name="l00089"></a>00089 <a class="code" href="classgeos_1_1simplify_1_1TaggedLineString.html" title="Contains and owns a list of TaggedLineSegments.">TaggedLineString</a>* line;
<a name="l00090"></a>00090
<a name="l00091"></a>00091 <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1CoordinateSequence.html" title="The internal representation of a list of coordinates inside a Geometry.">geom::CoordinateSequence</a>* linePts;
<a name="l00092"></a>00092
<a name="l00093"></a>00093 <span class="keywordtype">double</span> distanceTolerance;
<a name="l00094"></a>00094
<a name="l00095"></a>00095 <span class="keywordtype">void</span> simplifySection(<span class="keywordtype">size_t</span> i, <span class="keywordtype">size_t</span> j,
<a name="l00096"></a>00096 <span class="keywordtype">size_t</span> depth);
<a name="l00097"></a>00097
<a name="l00098"></a>00098 <span class="keyword">static</span> <span class="keywordtype">size_t</span> findFurthestPoint(
<a name="l00099"></a>00099 <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1CoordinateSequence.html" title="The internal representation of a list of coordinates inside a Geometry.">geom::CoordinateSequence</a>* pts,
<a name="l00100"></a>00100 <span class="keywordtype">size_t</span> i, <span class="keywordtype">size_t</span> j,
<a name="l00101"></a>00101 <span class="keywordtype">double</span>& maxDistance);
<a name="l00102"></a>00102
<a name="l00103"></a>00103 <span class="keywordtype">bool</span> hasBadIntersection(<span class="keyword">const</span> <a class="code" href="classgeos_1_1simplify_1_1TaggedLineString.html" title="Contains and owns a list of TaggedLineSegments.">TaggedLineString</a>* parentLine,
<a name="l00104"></a>00104 <span class="keyword">const</span> std::vector<size_t>& sectionIndex,
<a name="l00105"></a>00105 <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1LineSegment.html">geom::LineSegment</a>& candidateSeg);
<a name="l00106"></a>00106
<a name="l00107"></a>00107 <span class="keywordtype">bool</span> hasBadInputIntersection(<span class="keyword">const</span> <a class="code" href="classgeos_1_1simplify_1_1TaggedLineString.html" title="Contains and owns a list of TaggedLineSegments.">TaggedLineString</a>* parentLine,
<a name="l00108"></a>00108 <span class="keyword">const</span> std::vector<size_t>& sectionIndex,
<a name="l00109"></a>00109 <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1LineSegment.html">geom::LineSegment</a>& candidateSeg);
<a name="l00110"></a>00110
<a name="l00111"></a>00111 <span class="keywordtype">bool</span> hasBadOutputIntersection(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1LineSegment.html">geom::LineSegment</a>& candidateSeg);
<a name="l00112"></a>00112
<a name="l00113"></a>00113 <span class="keywordtype">bool</span> hasInteriorIntersection(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1LineSegment.html">geom::LineSegment</a>& seg0,
<a name="l00114"></a>00114 <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1LineSegment.html">geom::LineSegment</a>& seg1) <span class="keyword">const</span>;
<a name="l00115"></a>00115
<a name="l00116"></a>00116 std::auto_ptr<TaggedLineSegment> flatten(
<a name="l00117"></a>00117 <span class="keywordtype">size_t</span> start, <span class="keywordtype">size_t</span> end);
<a name="l00118"></a>00118
<a name="l00127"></a>00127 <span class="keyword">static</span> <span class="keywordtype">bool</span> isInLineSection(
<a name="l00128"></a>00128 <span class="keyword">const</span> <a class="code" href="classgeos_1_1simplify_1_1TaggedLineString.html" title="Contains and owns a list of TaggedLineSegments.">TaggedLineString</a>* parentLine,
<a name="l00129"></a>00129 <span class="keyword">const</span> std::vector<size_t>& sectionIndex,
<a name="l00130"></a>00130 <span class="keyword">const</span> <a class="code" href="classgeos_1_1simplify_1_1TaggedLineSegment.html" title="A geom::LineSegment which is tagged with its location in a geom::Geometry.">TaggedLineSegment</a>* seg);
<a name="l00131"></a>00131
<a name="l00140"></a>00140 <span class="keywordtype">void</span> <span class="keyword">remove</span>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1simplify_1_1TaggedLineString.html" title="Contains and owns a list of TaggedLineSegments.">TaggedLineString</a>* line,
<a name="l00141"></a>00141 <span class="keywordtype">size_t</span> start,
<a name="l00142"></a>00142 <span class="keywordtype">size_t</span> end);
<a name="l00143"></a>00143
<a name="l00144"></a>00144 };
<a name="l00145"></a>00145
<a name="l00146"></a>00146 <span class="keyword">inline</span> <span class="keywordtype">void</span>
<a name="l00147"></a><a class="code" href="classgeos_1_1simplify_1_1TaggedLineStringSimplifier.html#ab032e26b22038a618c076a626cc6bdb9">00147</a> <a class="code" href="classgeos_1_1simplify_1_1TaggedLineStringSimplifier.html#ab032e26b22038a618c076a626cc6bdb9" title="Sets the distance tolerance for the simplification.">TaggedLineStringSimplifier::setDistanceTolerance</a>(<span class="keywordtype">double</span> d)
<a name="l00148"></a>00148 {
<a name="l00149"></a>00149 distanceTolerance = d;
<a name="l00150"></a>00150 }
<a name="l00151"></a>00151
<a name="l00152"></a>00152 } <span class="comment">// namespace geos::simplify</span>
<a name="l00153"></a>00153 } <span class="comment">// namespace geos</span>
<a name="l00154"></a>00154
<a name="l00155"></a>00155 <span class="preprocessor">#endif // GEOS_SIMPLIFY_TAGGEDLINESTRINGSIMPLIFIER_H</span>
<a name="l00156"></a>00156 <span class="preprocessor"></span>
<a name="l00157"></a>00157 <span class="comment">/**********************************************************************</span>
<a name="l00158"></a>00158 <span class="comment"> * $Log$</span>
<a name="l00159"></a>00159 <span class="comment"> * Revision 1.3 2006/04/13 21:52:34 strk</span>
<a name="l00160"></a>00160 <span class="comment"> * Many debugging lines and assertions added. Fixed bug in TaggedLineString class.</span>
<a name="l00161"></a>00161 <span class="comment"> *</span>
<a name="l00162"></a>00162 <span class="comment"> * Revision 1.2 2006/04/13 10:39:12 strk</span>
<a name="l00163"></a>00163 <span class="comment"> * Initial implementation of TaggedLinesSimplifier class</span>
<a name="l00164"></a>00164 <span class="comment"> *</span>
<a name="l00165"></a>00165 <span class="comment"> * Revision 1.1 2006/04/12 17:19:57 strk</span>
<a name="l00166"></a>00166 <span class="comment"> * Ported TaggedLineStringSimplifier class, made LineSegment class</span>
<a name="l00167"></a>00167 <span class="comment"> * polymorphic to fix derivation of TaggedLineSegment</span>
<a name="l00168"></a>00168 <span class="comment"> *</span>
<a name="l00169"></a>00169 <span class="comment"> **********************************************************************/</span>
</pre></div></div>
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