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<a href="OverlayLabeller_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">/**********************************************************************</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment"> * GEOS - Geometry Engine Open Source</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment"> * http://geos.osgeo.org</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment"> * Copyright (C) 2020 Paul Ramsey &lt;pramsey@cleverelephant.ca&gt;</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment"> * This is free software; you can redistribute and/or modify it under</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment"> * the terms of the GNU Lesser General Public Licence as published</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment"> * by the Free Software Foundation.</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment"> * See the COPYING file for more information.</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment"> **********************************************************************/</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;</div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="preprocessor">#pragma once</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;</div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="export_8h.html">geos/export.h</a>&gt;</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="Location_8h.html">geos/geom/Location.h</a>&gt;</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="OverlayGraph_8h.html">geos/operation/overlayng/OverlayGraph.h</a>&gt;</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="preprocessor">#include &lt;deque&gt;</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="comment">// Forward declarations</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacegeos.html">geos</a> {</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="keyword">namespace </span>geom {</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="keyword">class </span>Coordinate;</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;}</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="keyword">namespace </span>operation {</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="keyword">namespace </span>overlayng {</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="keyword">class </span>OverlayLabel;</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;<span class="keyword">class </span>OverlayGraph;</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;<span class="keyword">class </span>OverlayEdge;</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;<span class="keyword">class </span>InputGeometry;</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160;}</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;}</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;}</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160;</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacegeos.html">geos</a> { <span class="comment">// geos.</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160;<span class="keyword">namespace </span>operation { <span class="comment">// geos.operation</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160;<span class="keyword">namespace </span>overlayng { <span class="comment">// geos.operation.overlayng</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160;</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160;</div><div class="line"><a name="l00044"></a><span class="lineno"><a class="line" href="classgeos_1_1operation_1_1overlayng_1_1OverlayLabeller.html"> 44</a></span>&#160;<span class="keyword">class </span><a class="code" href="export_8h.html#ae36df939090171f6e9a28a8cb6254fea">GEOS_DLL</a> <a class="code" href="classgeos_1_1operation_1_1overlayng_1_1OverlayLabeller.html">OverlayLabeller</a> {</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160;</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160;<span class="keyword">private</span>:</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; <span class="comment">// Members</span></div><div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="classgeos_1_1operation_1_1overlayng_1_1OverlayLabeller.html#aef06c6a71ecaecc2b99768d31845c381"> 49</a></span>&#160; <a class="code" href="classgeos_1_1operation_1_1overlayng_1_1OverlayGraph.html">OverlayGraph</a>* <a class="code" href="classgeos_1_1operation_1_1overlayng_1_1OverlayLabeller.html#aef06c6a71ecaecc2b99768d31845c381">graph</a>;</div><div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="classgeos_1_1operation_1_1overlayng_1_1OverlayLabeller.html#a161df94add3571fd88bda5d9604b41f8"> 50</a></span>&#160; <a class="code" href="classgeos_1_1operation_1_1overlayng_1_1InputGeometry.html">InputGeometry</a>* <a class="code" href="classgeos_1_1operation_1_1overlayng_1_1OverlayLabeller.html#a161df94add3571fd88bda5d9604b41f8">inputGeometry</a>;</div><div class="line"><a name="l00051"></a><span class="lineno"><a class="line" href="classgeos_1_1operation_1_1overlayng_1_1OverlayLabeller.html#aa08db1145ce8e3cacd579b2989d2269b"> 51</a></span>&#160; std::vector&lt;OverlayEdge*&gt;&amp; <a class="code" href="classgeos_1_1operation_1_1overlayng_1_1OverlayLabeller.html#aa08db1145ce8e3cacd579b2989d2269b">edges</a>;</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; <span class="keyword">static</span> <a class="code" href="classgeos_1_1operation_1_1overlayng_1_1OverlayEdge.html">OverlayEdge</a>* findPropagationStartEdge(<a class="code" href="classgeos_1_1operation_1_1overlayng_1_1OverlayEdge.html">OverlayEdge</a>* nodeEdge, <span class="keywordtype">int</span> geomIndex);</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; <span class="keywordtype">void</span> labelCollapsedEdges();</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <span class="keywordtype">void</span> labelCollapsedEdge(<a class="code" href="classgeos_1_1operation_1_1overlayng_1_1OverlayEdge.html">OverlayEdge</a>* edge, <span class="keywordtype">int</span> geomIndex);</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160;</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; <span class="keywordtype">void</span> labelConnectedLinearEdges();</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; <span class="keywordtype">void</span> propagateLinearLocations(<span class="keywordtype">int</span> geomIndex);</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; <span class="keyword">static</span> <span class="keywordtype">void</span> propagateLinearLocationAtNode(<a class="code" href="classgeos_1_1operation_1_1overlayng_1_1OverlayEdge.html">OverlayEdge</a>* eNode, <span class="keywordtype">int</span> geomIndex, <span class="keywordtype">bool</span> isInputLine, std::deque&lt;OverlayEdge*&gt;&amp; edgeStack);</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160;</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; <span class="keyword">static</span> std::vector&lt;OverlayEdge*&gt; findLinearEdgesWithLocation(std::vector&lt;OverlayEdge*&gt;&amp; edges, <span class="keywordtype">int</span> geomIndex);</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160;</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; <span class="keywordtype">void</span> labelDisconnectedEdges();</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160;</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; <span class="keywordtype">void</span> labelDisconnectedEdge(<a class="code" href="classgeos_1_1operation_1_1overlayng_1_1OverlayEdge.html">OverlayEdge</a>* edge, <span class="keywordtype">int</span> geomIndex);</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160;</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; <a class="code" href="namespacegeos_1_1geom.html#ae55a225cd843a6b153a7b6ca5a4707c8">geom::Location</a> locateEdge(<span class="keywordtype">int</span> geomIndex, <a class="code" href="classgeos_1_1operation_1_1overlayng_1_1OverlayEdge.html">OverlayEdge</a>* edge);</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160;</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; <a class="code" href="namespacegeos_1_1geom.html#ae55a225cd843a6b153a7b6ca5a4707c8">geom::Location</a> locateEdgeBothEnds(<span class="keywordtype">int</span> geomIndex, <a class="code" href="classgeos_1_1operation_1_1overlayng_1_1OverlayEdge.html">OverlayEdge</a>* edge);</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160;</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; <span class="keywordtype">void</span> labelAreaNodeEdges(std::vector&lt;OverlayEdge*&gt;&amp; nodes);</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160;</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160;</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160;</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160;</div><div class="line"><a name="l00163"></a><span class="lineno"><a class="line" href="classgeos_1_1operation_1_1overlayng_1_1OverlayLabeller.html#a1708bdb321795fae917ff8d70bf6df59"> 163</a></span>&#160; <a class="code" href="classgeos_1_1operation_1_1overlayng_1_1OverlayLabeller.html#a1708bdb321795fae917ff8d70bf6df59">OverlayLabeller</a>(<a class="code" href="classgeos_1_1operation_1_1overlayng_1_1OverlayGraph.html">OverlayGraph</a>* p_graph, <a class="code" href="classgeos_1_1operation_1_1overlayng_1_1InputGeometry.html">InputGeometry</a>* p_inputGeometry)</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; : graph(p_graph)</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; , inputGeometry(p_inputGeometry)</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; , edges(p_graph-&gt;getEdges())</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; {}</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; <span class="keywordtype">void</span> computeLabelling();</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160;</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; <span class="keywordtype">void</span> propagateAreaLocations(<a class="code" href="classgeos_1_1operation_1_1overlayng_1_1OverlayEdge.html">OverlayEdge</a>* nodeEdge, <span class="keywordtype">int</span> geomIndex);</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160;</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; <span class="keywordtype">void</span> markResultAreaEdges(<span class="keywordtype">int</span> overlayOpCode);</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160;</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160; <span class="keywordtype">void</span> markInResultArea(<a class="code" href="classgeos_1_1operation_1_1overlayng_1_1OverlayEdge.html">OverlayEdge</a>* e, <span class="keywordtype">int</span> overlayOpCode);</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160;</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160; <span class="keywordtype">void</span> unmarkDuplicateEdgesFromResultArea();</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160;</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160;</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160;};</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160;</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160;</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160;} <span class="comment">// namespace geos.operation.overlayng</span></div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160;} <span class="comment">// namespace geos.operation</span></div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160;} <span class="comment">// namespace geos</span></div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160;</div><div class="ttc" id="classgeos_1_1operation_1_1overlayng_1_1OverlayLabeller_html_a161df94add3571fd88bda5d9604b41f8"><div class="ttname"><a href="classgeos_1_1operation_1_1overlayng_1_1OverlayLabeller.html#a161df94add3571fd88bda5d9604b41f8">geos::operation::overlayng::OverlayLabeller::inputGeometry</a></div><div class="ttdeci">InputGeometry * inputGeometry</div><div class="ttdef"><b>Definition:</b> <a href="OverlayLabeller_8h_source.html#l00050">OverlayLabeller.h:50</a></div></div>
<div class="ttc" id="export_8h_html_ae36df939090171f6e9a28a8cb6254fea"><div class="ttname"><a href="export_8h.html#ae36df939090171f6e9a28a8cb6254fea">GEOS_DLL</a></div><div class="ttdeci">#define GEOS_DLL</div><div class="ttdef"><b>Definition:</b> <a href="export_8h_source.html#l00028">export.h:28</a></div></div>
<div class="ttc" id="export_8h_html"><div class="ttname"><a href="export_8h.html">export.h</a></div></div>
<div class="ttc" id="classgeos_1_1operation_1_1overlayng_1_1OverlayGraph_html"><div class="ttname"><a href="classgeos_1_1operation_1_1overlayng_1_1OverlayGraph.html">geos::operation::overlayng::OverlayGraph</a></div><div class="ttdef"><b>Definition:</b> <a href="OverlayGraph_8h_source.html#l00054">OverlayGraph.h:54</a></div></div>
<div class="ttc" id="classgeos_1_1operation_1_1overlayng_1_1OverlayLabeller_html_a1708bdb321795fae917ff8d70bf6df59"><div class="ttname"><a href="classgeos_1_1operation_1_1overlayng_1_1OverlayLabeller.html#a1708bdb321795fae917ff8d70bf6df59">geos::operation::overlayng::OverlayLabeller::OverlayLabeller</a></div><div class="ttdeci">OverlayLabeller(OverlayGraph *p_graph, InputGeometry *p_inputGeometry)</div><div class="ttdef"><b>Definition:</b> <a href="OverlayLabeller_8h_source.html#l00163">OverlayLabeller.h:163</a></div></div>
<div class="ttc" id="OverlayGraph_8h_html"><div class="ttname"><a href="OverlayGraph_8h.html">OverlayGraph.h</a></div></div>
<div class="ttc" id="classgeos_1_1operation_1_1overlayng_1_1InputGeometry_html"><div class="ttname"><a href="classgeos_1_1operation_1_1overlayng_1_1InputGeometry.html">geos::operation::overlayng::InputGeometry</a></div><div class="ttdef"><b>Definition:</b> <a href="InputGeometry_8h_source.html#l00044">InputGeometry.h:44</a></div></div>
<div class="ttc" id="classgeos_1_1operation_1_1overlayng_1_1OverlayLabeller_html_aa08db1145ce8e3cacd579b2989d2269b"><div class="ttname"><a href="classgeos_1_1operation_1_1overlayng_1_1OverlayLabeller.html#aa08db1145ce8e3cacd579b2989d2269b">geos::operation::overlayng::OverlayLabeller::edges</a></div><div class="ttdeci">std::vector&lt; OverlayEdge * &gt; &amp; edges</div><div class="ttdef"><b>Definition:</b> <a href="OverlayLabeller_8h_source.html#l00051">OverlayLabeller.h:51</a></div></div>
<div class="ttc" id="namespacegeos_1_1geom_html_ae55a225cd843a6b153a7b6ca5a4707c8"><div class="ttname"><a href="namespacegeos_1_1geom.html#ae55a225cd843a6b153a7b6ca5a4707c8">geos::geom::Location</a></div><div class="ttdeci">Location</div><div class="ttdoc">Constants representing the location of a point relative to a geometry. </div><div class="ttdef"><b>Definition:</b> <a href="Location_8h_source.html#l00034">Location.h:34</a></div></div>
<div class="ttc" id="classgeos_1_1operation_1_1overlayng_1_1OverlayLabeller_html_aef06c6a71ecaecc2b99768d31845c381"><div class="ttname"><a href="classgeos_1_1operation_1_1overlayng_1_1OverlayLabeller.html#aef06c6a71ecaecc2b99768d31845c381">geos::operation::overlayng::OverlayLabeller::graph</a></div><div class="ttdeci">OverlayGraph * graph</div><div class="ttdef"><b>Definition:</b> <a href="OverlayLabeller_8h_source.html#l00049">OverlayLabeller.h:49</a></div></div>
<div class="ttc" id="namespacegeos_html"><div class="ttname"><a href="namespacegeos.html">geos</a></div><div class="ttdoc">Basic namespace for all GEOS functionalities. </div><div class="ttdef"><b>Definition:</b> <a href="IndexedNestedRingTester_8h_source.html#l00026">IndexedNestedRingTester.h:26</a></div></div>
<div class="ttc" id="classgeos_1_1operation_1_1overlayng_1_1OverlayEdge_html"><div class="ttname"><a href="classgeos_1_1operation_1_1overlayng_1_1OverlayEdge.html">geos::operation::overlayng::OverlayEdge</a></div><div class="ttdef"><b>Definition:</b> <a href="OverlayEdge_8h_source.html#l00049">OverlayEdge.h:49</a></div></div>
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