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<h1>BufferInputLineSimplifier.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: BufferInputLineSimplifier.h 2809 2009-12-06 01:05:24Z 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) 2009 Sandro Santilli <strk@keybit.net></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: operation/buffer/BufferInputLineSimplifier.java rev 1.6 (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_OP_BUFFER_BUFFERINPUTLINESIMPLIFIER_H</span>
<a name="l00021"></a>00021 <span class="preprocessor"></span><span class="preprocessor">#define GEOS_OP_BUFFER_BUFFERINPUTLINESIMPLIFIER_H</span>
<a name="l00022"></a>00022 <span class="preprocessor"></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <geos/geom/CoordinateSequence.h></span> <span class="comment">// complete type required</span>
<a name="l00024"></a>00024 <span class="preprocessor">#include <geos/algorithm/CGAlgorithms.h></span> <span class="comment">// for enum</span>
<a name="l00025"></a>00025
<a name="l00026"></a>00026 <span class="preprocessor">#include <memory></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include <vector></span> <span class="comment">// for composition</span>
<a name="l00028"></a>00028
<a name="l00029"></a>00029
<a name="l00030"></a>00030 <span class="comment">// Forward declarations</span>
<a name="l00031"></a>00031 <span class="keyword">namespace </span>geos {
<a name="l00032"></a>00032 <span class="keyword">namespace </span>geom {
<a name="l00033"></a>00033 <span class="keyword">class </span>CoordinateSequence;
<a name="l00034"></a>00034 <span class="comment">//class PrecisionModel;</span>
<a name="l00035"></a>00035 }
<a name="l00036"></a>00036 }
<a name="l00037"></a>00037
<a name="l00038"></a>00038 <span class="keyword">namespace </span>geos {
<a name="l00039"></a>00039 <span class="keyword">namespace </span>operation { <span class="comment">// geos.operation</span>
<a name="l00040"></a>00040 <span class="keyword">namespace </span>buffer { <span class="comment">// geos.operation.buffer</span>
<a name="l00041"></a>00041
<a name="l00072"></a><a class="code" href="classgeos_1_1operation_1_1buffer_1_1BufferInputLineSimplifier.html">00072</a> <span class="keyword">class </span><a class="code" href="classgeos_1_1operation_1_1buffer_1_1BufferInputLineSimplifier.html" title="Simplifies a buffer input line to remove concavities with shallow depth.">BufferInputLineSimplifier</a>
<a name="l00073"></a>00073 {
<a name="l00074"></a>00074
<a name="l00075"></a>00075 <span class="keyword">public</span>:
<a name="l00076"></a>00076
<a name="l00089"></a>00089 <span class="keyword">static</span> std::auto_ptr<geom::CoordinateSequence> <a class="code" href="classgeos_1_1operation_1_1buffer_1_1BufferInputLineSimplifier.html#ac49af0a02dc230d43473c2bc2f2fed4e">simplify</a>(
<a name="l00090"></a>00090 <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>& inputLine, <span class="keywordtype">double</span> distanceTol);
<a name="l00091"></a>00091
<a name="l00092"></a>00092 <a class="code" href="classgeos_1_1operation_1_1buffer_1_1BufferInputLineSimplifier.html" title="Simplifies a buffer input line to remove concavities with shallow depth.">BufferInputLineSimplifier</a>(<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>& input);
<a name="l00093"></a>00093
<a name="l00104"></a>00104 std::auto_ptr<geom::CoordinateSequence> <a class="code" href="classgeos_1_1operation_1_1buffer_1_1BufferInputLineSimplifier.html#ac49af0a02dc230d43473c2bc2f2fed4e">simplify</a>(<span class="keywordtype">double</span> distanceTol);
<a name="l00105"></a>00105
<a name="l00106"></a>00106 <span class="keyword">private</span>:
<a name="l00107"></a>00107
<a name="l00114"></a>00114 <span class="keywordtype">bool</span> deleteShallowConcavities();
<a name="l00115"></a>00115
<a name="l00124"></a>00124 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> findNextNonDeletedIndex(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> index) <span class="keyword">const</span>;
<a name="l00125"></a>00125
<a name="l00126"></a>00126 std::auto_ptr<geom::CoordinateSequence> collapseLine() <span class="keyword">const</span>;
<a name="l00127"></a>00127
<a name="l00128"></a>00128 <span class="keywordtype">bool</span> isDeletable(<span class="keywordtype">int</span> i0, <span class="keywordtype">int</span> i1, <span class="keywordtype">int</span> i2, <span class="keywordtype">double</span> distanceTol) <span class="keyword">const</span>;
<a name="l00129"></a>00129
<a name="l00130"></a>00130 <span class="keywordtype">bool</span> isShallowConcavity(<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>& p0,
<a name="l00131"></a>00131 <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>& p1,
<a name="l00132"></a>00132 <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>& p2,
<a name="l00133"></a>00133 <span class="keywordtype">double</span> distanceTol) <span class="keyword">const</span>;
<a name="l00134"></a>00134
<a name="l00148"></a>00148 <span class="keywordtype">bool</span> isShallowSampled(<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>& p0,
<a name="l00149"></a>00149 <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>& p2,
<a name="l00150"></a>00150 <span class="keywordtype">int</span> i0, <span class="keywordtype">int</span> i2, <span class="keywordtype">double</span> distanceTol) <span class="keyword">const</span>;
<a name="l00151"></a>00151
<a name="l00152"></a>00152 <span class="keywordtype">bool</span> isShallow(<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>& p0,
<a name="l00153"></a>00153 <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>& p1,
<a name="l00154"></a>00154 <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>& p2,
<a name="l00155"></a>00155 <span class="keywordtype">double</span> distanceTol) <span class="keyword">const</span>;
<a name="l00156"></a>00156
<a name="l00157"></a>00157 <span class="keywordtype">bool</span> isConcave(<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>& p0,
<a name="l00158"></a>00158 <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>& p1,
<a name="l00159"></a>00159 <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>& p2) <span class="keyword">const</span>;
<a name="l00160"></a>00160
<a name="l00161"></a>00161 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> NUM_PTS_TO_CHECK = 10;
<a name="l00162"></a>00162
<a name="l00163"></a>00163 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> INIT = 0;
<a name="l00164"></a>00164 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> DELETE = 1;
<a name="l00165"></a>00165 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> KEEP = 1;
<a name="l00166"></a>00166
<a name="l00167"></a>00167 <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>& inputLine;
<a name="l00168"></a>00168 <span class="keywordtype">double</span> distanceTol;
<a name="l00169"></a>00169 std::vector<int> isDeleted;
<a name="l00170"></a>00170
<a name="l00171"></a>00171 <span class="keywordtype">int</span> angleOrientation;
<a name="l00172"></a>00172
<a name="l00173"></a>00173 <span class="comment">// Declare type as noncopyable</span>
<a name="l00174"></a>00174 <a class="code" href="classgeos_1_1operation_1_1buffer_1_1BufferInputLineSimplifier.html" title="Simplifies a buffer input line to remove concavities with shallow depth.">BufferInputLineSimplifier</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1operation_1_1buffer_1_1BufferInputLineSimplifier.html" title="Simplifies a buffer input line to remove concavities with shallow depth.">BufferInputLineSimplifier</a>& other);
<a name="l00175"></a>00175 <a class="code" href="classgeos_1_1operation_1_1buffer_1_1BufferInputLineSimplifier.html" title="Simplifies a buffer input line to remove concavities with shallow depth.">BufferInputLineSimplifier</a>& operator=(<span class="keyword">const</span> <a class="code" href="classgeos_1_1operation_1_1buffer_1_1BufferInputLineSimplifier.html" title="Simplifies a buffer input line to remove concavities with shallow depth.">BufferInputLineSimplifier</a>& rhs);
<a name="l00176"></a>00176 };
<a name="l00177"></a>00177
<a name="l00178"></a>00178
<a name="l00179"></a>00179 } <span class="comment">// namespace geos.operation.buffer</span>
<a name="l00180"></a>00180 } <span class="comment">// namespace geos.operation</span>
<a name="l00181"></a>00181 } <span class="comment">// namespace geos</span>
<a name="l00182"></a>00182
<a name="l00183"></a>00183
<a name="l00184"></a>00184 <span class="preprocessor">#endif // ndef GEOS_OP_BUFFER_BUFFERINPUTLINESIMPLIFIER_H</span>
<a name="l00185"></a>00185 <span class="preprocessor"></span>
<a name="l00186"></a>00186 <span class="comment">/**********************************************************************</span>
<a name="l00187"></a>00187 <span class="comment"> * $Log$</span>
<a name="l00188"></a>00188 <span class="comment"> **********************************************************************/</span>
<a name="l00189"></a>00189
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