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<h1>NodedSegmentString.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: NodedSegmentString.h 2778 2009-12-03 19:44:00Z 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 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"> *</span>
<a name="l00017"></a>00017 <span class="comment"> * Last port: noding/NodedSegmentString.java rev. 1.2 (JTS-1.9)</span>
<a name="l00018"></a>00018 <span class="comment"> *</span>
<a name="l00019"></a>00019 <span class="comment"> **********************************************************************/</span>
<a name="l00020"></a>00020
<a name="l00021"></a>00021 <span class="preprocessor">#ifndef GEOS_NODING_NODEDSEGMENTSTRING_H</span>
<a name="l00022"></a>00022 <span class="preprocessor"></span><span class="preprocessor">#define GEOS_NODING_NODEDSEGMENTSTRING_H</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span>
<a name="l00024"></a>00024 <span class="preprocessor">#include <geos/noding/NodableSegmentString.h></span> <span class="comment">// for inheritance</span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <geos/geom/CoordinateSequence.h></span> <span class="comment">// for inlines</span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <geos/algorithm/LineIntersector.h></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include <geos/noding/SegmentNode.h></span>
<a name="l00028"></a>00028 <span class="preprocessor">#include <geos/noding/SegmentNodeList.h></span>
<a name="l00029"></a>00029 <span class="preprocessor">#include <geos/noding/SegmentString.h></span>
<a name="l00030"></a>00030 <span class="comment">//#include <geos/noding/Octant.h></span>
<a name="l00031"></a>00031 <span class="preprocessor">#include <geos/geom/Coordinate.h></span>
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="preprocessor">#ifdef _MSC_VER</span>
<a name="l00034"></a>00034 <span class="preprocessor"></span><span class="preprocessor">#pragma warning(push)</span>
<a name="l00035"></a>00035 <span class="preprocessor"></span><span class="preprocessor">#pragma warning(disable: 4355) // warning C4355: 'this' : used in base member initializer list</span>
<a name="l00036"></a>00036 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00037"></a>00037 <span class="preprocessor"></span>
<a name="l00038"></a>00038 <span class="keyword">namespace </span>geos {
<a name="l00039"></a>00039 <span class="keyword">namespace </span>noding { <span class="comment">// geos::noding</span>
<a name="l00040"></a>00040
<a name="l00053"></a><a class="code" href="classgeos_1_1noding_1_1NodedSegmentString.html">00053</a> <span class="keyword">class </span><a class="code" href="classgeos_1_1noding_1_1NodedSegmentString.html" title="Represents a list of contiguous line segments, and supports noding the segments.">NodedSegmentString</a> : <span class="keyword">public</span> <a class="code" href="classgeos_1_1noding_1_1NodableSegmentString.html" title="An interface for classes which support adding nodes to a segment string.">NodableSegmentString</a>
<a name="l00054"></a>00054 {
<a name="l00055"></a>00055 <span class="keyword">public</span>:
<a name="l00056"></a>00056
<a name="l00057"></a>00057 <span class="keyword">static</span> <span class="keywordtype">void</span> getNodedSubstrings(SegmentString::ConstVect* segStrings,
<a name="l00058"></a>00058 SegmentString::NonConstVect* resultEdgelist)
<a name="l00059"></a>00059 {
<a name="l00060"></a>00060 <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i=0, n=segStrings->size(); i<n; i++)
<a name="l00061"></a>00061 {
<a name="l00062"></a>00062 <a class="code" href="classgeos_1_1noding_1_1NodedSegmentString.html" title="Represents a list of contiguous line segments, and supports noding the segments.">NodedSegmentString</a> * nss = (<a class="code" href="classgeos_1_1noding_1_1NodedSegmentString.html" title="Represents a list of contiguous line segments, and supports noding the segments.">NodedSegmentString</a> *)((*segStrings)[i]);
<a name="l00063"></a>00063 nss->getNodeList().<a class="code" href="classgeos_1_1noding_1_1SegmentNodeList.html#a715a173abafcdcc9685ed3ceab7c81aa">addSplitEdges</a>( resultEdgelist);
<a name="l00064"></a>00064 }
<a name="l00065"></a>00065 }
<a name="l00066"></a>00066
<a name="l00067"></a>00067 <span class="keyword">static</span> <span class="keywordtype">void</span> getNodedSubstrings(
<a name="l00068"></a>00068 <span class="keyword">const</span> SegmentString::NonConstVect& segStrings,
<a name="l00069"></a>00069 SegmentString::NonConstVect* resultEdgeList);
<a name="l00070"></a>00070
<a name="l00072"></a>00072 <span class="keyword">static</span> SegmentString::NonConstVect* getNodedSubstrings(
<a name="l00073"></a>00073 <span class="keyword">const</span> SegmentString::NonConstVect& segStrings);
<a name="l00074"></a>00074
<a name="l00075"></a>00075
<a name="l00085"></a><a class="code" href="classgeos_1_1noding_1_1NodedSegmentString.html#aaa4c2b7fb0d902f62412182e07ea81c2">00085</a> <a class="code" href="classgeos_1_1noding_1_1NodedSegmentString.html#aaa4c2b7fb0d902f62412182e07ea81c2">NodedSegmentString</a>(<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> *newPts,
<a name="l00086"></a>00086 <span class="keyword">const</span> <span class="keywordtype">void</span>* newContext)
<a name="l00087"></a>00087 :
<a name="l00088"></a>00088 <a class="code" href="classgeos_1_1noding_1_1NodableSegmentString.html" title="An interface for classes which support adding nodes to a segment string.">NodableSegmentString</a>(newContext),
<a name="l00089"></a>00089 nodeList(this),
<a name="l00090"></a>00090 pts(newPts)
<a name="l00091"></a>00091 { }
<a name="l00092"></a>00092
<a name="l00093"></a>00093 ~<a class="code" href="classgeos_1_1noding_1_1NodedSegmentString.html" title="Represents a list of contiguous line segments, and supports noding the segments.">NodedSegmentString</a>()
<a name="l00094"></a>00094 { }
<a name="l00095"></a>00095
<a name="l00105"></a><a class="code" href="classgeos_1_1noding_1_1NodedSegmentString.html#ac4a4cfb0eccf8e6d7a92d09035797612">00105</a> <a class="code" href="classgeos_1_1noding_1_1SegmentNode.html" title="Represents an intersection point between two NodedSegmentString.">SegmentNode</a> * <a class="code" href="classgeos_1_1noding_1_1NodedSegmentString.html#ac4a4cfb0eccf8e6d7a92d09035797612">addIntersectionNode</a>( <a class="code" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates.">geom::Coordinate</a> * intPt, <span class="keywordtype">size_t</span> segmentIndex)
<a name="l00106"></a>00106 {
<a name="l00107"></a>00107 <span class="keywordtype">size_t</span> normalizedSegmentIndex = segmentIndex;
<a name="l00108"></a>00108
<a name="l00109"></a>00109 <span class="comment">// normalize the intersection point location</span>
<a name="l00110"></a>00110 <span class="keywordtype">size_t</span> nextSegIndex = normalizedSegmentIndex + 1;
<a name="l00111"></a>00111 <span class="keywordflow">if</span> (nextSegIndex < size())
<a name="l00112"></a>00112 {
<a name="l00113"></a>00113 <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> &nextPt = getCoordinate( nextSegIndex);
<a name="l00114"></a>00114
<a name="l00115"></a>00115 <span class="comment">// Normalize segment index if intPt falls on vertex</span>
<a name="l00116"></a>00116 <span class="comment">// The check for point equality is 2D only - Z values are ignored</span>
<a name="l00117"></a>00117 <span class="keywordflow">if</span> ( intPt->equals2D( nextPt ))
<a name="l00118"></a>00118 {
<a name="l00119"></a>00119 normalizedSegmentIndex = nextSegIndex;
<a name="l00120"></a>00120 }
<a name="l00121"></a>00121 }
<a name="l00122"></a>00122
<a name="l00123"></a>00123 <span class="comment">// Add the intersection point to edge intersection list.</span>
<a name="l00124"></a>00124 <a class="code" href="classgeos_1_1noding_1_1SegmentNode.html" title="Represents an intersection point between two NodedSegmentString.">SegmentNode</a> * ei = getNodeList().<a class="code" href="classgeos_1_1noding_1_1SegmentNodeList.html#ae4084b8ba4dff203840f95198bd7a0c8">add</a>( *intPt, normalizedSegmentIndex);
<a name="l00125"></a>00125 <span class="keywordflow">return</span> ei;
<a name="l00126"></a>00126 }
<a name="l00127"></a>00127
<a name="l00128"></a>00128 <a class="code" href="classgeos_1_1noding_1_1SegmentNodeList.html" title="A list of the SegmentNode present along a NodedSegmentString.">SegmentNodeList</a>& getNodeList();
<a name="l00129"></a>00129
<a name="l00130"></a>00130 <span class="keyword">const</span> <a class="code" href="classgeos_1_1noding_1_1SegmentNodeList.html" title="A list of the SegmentNode present along a NodedSegmentString.">SegmentNodeList</a>& getNodeList() <span class="keyword">const</span>;
<a name="l00131"></a>00131
<a name="l00132"></a>00132 <span class="keyword">virtual</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> size()<span class="keyword"> const</span>
<a name="l00133"></a>00133 <span class="keyword"> </span>{
<a name="l00134"></a>00134 <span class="keywordflow">return</span> pts->size();
<a name="l00135"></a>00135 }
<a name="l00136"></a>00136
<a name="l00137"></a>00137 <span class="keyword">virtual</span> <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>& getCoordinate(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i) <span class="keyword">const</span>;
<a name="l00138"></a>00138
<a name="l00139"></a>00139 <span class="keyword">virtual</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>* <a class="code" href="classgeos_1_1noding_1_1NodedSegmentString.html#a7adec298a85c346af77b77aec279a89f" title="Return a pointer to the CoordinateSequence associated with this SegmentString.">getCoordinates</a>() <span class="keyword">const</span>;
<a name="l00140"></a>00140
<a name="l00141"></a>00141 <span class="keyword">virtual</span> <span class="keywordtype">bool</span> isClosed() <span class="keyword">const</span>;
<a name="l00142"></a>00142
<a name="l00143"></a>00143 <span class="keyword">virtual</span> std::ostream& print(std::ostream& os) <span class="keyword">const</span>;
<a name="l00144"></a>00144
<a name="l00145"></a>00145
<a name="l00153"></a>00153 <span class="keywordtype">int</span> <a class="code" href="classgeos_1_1noding_1_1NodedSegmentString.html#af44992664c992949c6679b822769b9a3" title="Gets the octant of the segment starting at vertex index.">getSegmentOctant</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> index) <span class="keyword">const</span>;
<a name="l00154"></a>00154
<a name="l00160"></a>00160 <span class="keywordtype">void</span> <a class="code" href="classgeos_1_1noding_1_1NodedSegmentString.html#a9abd446d12820eeabbf4fb03347edd5e" title="Add {SegmentNode}s for one or both intersections found for a segment of an edge to the edge intersect...">addIntersections</a>(<a class="code" href="classgeos_1_1algorithm_1_1LineIntersector.html" title="A LineIntersector is an algorithm that can both test whether two line segments intersect and compute ...">algorithm::LineIntersector</a> *li,
<a name="l00161"></a>00161 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> segmentIndex, <span class="keywordtype">int</span> geomIndex);
<a name="l00162"></a>00162
<a name="l00170"></a>00170 <span class="keywordtype">void</span> <a class="code" href="classgeos_1_1noding_1_1NodedSegmentString.html#a2acce3ebc6a3bf0297766ede66abca38" title="Add an SegmentNode for intersection intIndex.">addIntersection</a>(<a class="code" href="classgeos_1_1algorithm_1_1LineIntersector.html" title="A LineIntersector is an algorithm that can both test whether two line segments intersect and compute ...">algorithm::LineIntersector</a> *li,
<a name="l00171"></a>00171 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> segmentIndex,
<a name="l00172"></a>00172 <span class="keywordtype">int</span> geomIndex, <span class="keywordtype">int</span> intIndex);
<a name="l00173"></a>00173
<a name="l00181"></a>00181 <span class="keywordtype">void</span> <a class="code" href="classgeos_1_1noding_1_1NodedSegmentString.html#a2acce3ebc6a3bf0297766ede66abca38" title="Add an SegmentNode for intersection intIndex.">addIntersection</a>(<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>& intPt,
<a name="l00182"></a>00182 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> segmentIndex);
<a name="l00183"></a>00183
<a name="l00184"></a>00184
<a name="l00185"></a>00185 <span class="keyword">private</span>:
<a name="l00186"></a>00186
<a name="l00187"></a>00187 SegmentNodeList nodeList;
<a name="l00188"></a>00188
<a name="l00189"></a>00189 <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="l00190"></a>00190
<a name="l00191"></a>00191 };
<a name="l00192"></a>00192
<a name="l00193"></a>00193 } <span class="comment">// namespace geos::noding</span>
<a name="l00194"></a>00194 } <span class="comment">// namespace geos</span>
<a name="l00195"></a>00195
<a name="l00196"></a>00196 <span class="preprocessor">#ifdef _MSC_VER</span>
<a name="l00197"></a>00197 <span class="preprocessor"></span><span class="preprocessor">#pragma warning(pop)</span>
<a name="l00198"></a>00198 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00199"></a>00199 <span class="preprocessor"></span>
<a name="l00200"></a>00200 <span class="preprocessor">#endif // GEOS_NODING_NODEDSEGMENTSTRING_H</span>
<a name="l00201"></a>00201 <span class="preprocessor"></span><span class="comment">/**********************************************************************</span>
<a name="l00202"></a>00202 <span class="comment"> * $Log$</span>
<a name="l00203"></a>00203 <span class="comment"> **********************************************************************/</span>
<a name="l00204"></a>00204
</pre></div></div>
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