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<a href="LineIntersector_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> <span class="comment">/**********************************************************************</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> *</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * GEOS - Geometry Engine Open Source</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * http://geos.osgeo.org</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * Copyright (C) 2005-2006 Refractions Research Inc.</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * Copyright (C) 2001-2002 Vivid Solutions Inc.</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> *</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * This is free software; you can redistribute and/or modify it under</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * the terms of the GNU Lesser General Public Licence as published</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * by the Free Software Foundation.</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * See the COPYING file for more information.</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> *</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> **********************************************************************</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * Last port: algorithm/RobustLineIntersector.java r785 (JTS-1.13+)</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> *</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> **********************************************************************/</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#ifndef GEOS_ALGORITHM_LINEINTERSECTOR_H</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#define GEOS_ALGORITHM_LINEINTERSECTOR_H</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <<a class="code" href="export_8h.html">geos/export.h</a>></span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <string></span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <<a class="code" href="Coordinate_8h.html">geos/geom/Coordinate.h</a>></span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment">// Forward declarations</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">namespace </span><a class="code" href="namespacegeos.html">geos</a> {</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">namespace </span>geom {</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">class </span>PrecisionModel;</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> }</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> }</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">namespace </span><a class="code" href="namespacegeos.html">geos</a> {</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">namespace </span>algorithm { <span class="comment">// geos::algorithm</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div><div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1LineIntersector.html"> 49</a></span> <span class="keyword">class </span><a class="code" href="export_8h.html#ae36df939090171f6e9a28a8cb6254fea">GEOS_DLL</a> <a class="code" href="classgeos_1_1algorithm_1_1LineIntersector.html">LineIntersector</a> {</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">static</span> <span class="keywordtype">double</span> interpolateZ(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p0, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p1);</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keyword">static</span> <span class="keywordtype">double</span> computeEdgeDistance(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p0, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p1);</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keyword">static</span> <span class="keywordtype">double</span> nonRobustComputeEdgeDistance(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p1,</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p2);</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div><div class="line"><a name="l00081"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1LineIntersector.html#ac1fbd5ba547c2f1d72991298d3aad68a"> 81</a></span>  <a class="code" href="classgeos_1_1algorithm_1_1LineIntersector.html#ac1fbd5ba547c2f1d72991298d3aad68a">LineIntersector</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1PrecisionModel.html">geom::PrecisionModel</a>* initialPrecisionModel = <span class="keyword">nullptr</span>)</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  :</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  precisionModel(initialPrecisionModel),</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  result(0),</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  isProperVar(false)</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  {}</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div><div class="line"><a name="l00088"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1LineIntersector.html#a7c09750ec291a520f724c848745a8cfd"> 88</a></span>  <a class="code" href="classgeos_1_1algorithm_1_1LineIntersector.html#a7c09750ec291a520f724c848745a8cfd">~LineIntersector</a>() {}</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> </div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordtype">bool</span> isInteriorIntersection();</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordtype">bool</span> isInteriorIntersection(<span class="keywordtype">size_t</span> inputLineIndex);</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordtype">void</span></div><div class="line"><a name="l00115"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1LineIntersector.html#a742294f2808e7d07387771ca31a6c07f"> 115</a></span>  <a class="code" href="classgeos_1_1algorithm_1_1LineIntersector.html#a742294f2808e7d07387771ca31a6c07f">setPrecisionModel</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1PrecisionModel.html">geom::PrecisionModel</a>* newPM)</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  {</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  precisionModel = newPM;</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  }</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordtype">void</span> computeIntersection(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p1, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p2);</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> hasIntersection(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p1, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p2);</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span> </div><div class="line"><a name="l00131"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1LineIntersector.html#a01e91decbc5f4c8410b965611f706a65"> 131</a></span>  <span class="keyword">enum</span> <a class="code" href="classgeos_1_1algorithm_1_1LineIntersector.html#a01e91decbc5f4c8410b965611f706a65">intersection_type</a> : uint8_t {</div><div class="line"><a name="l00133"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1LineIntersector.html#a01e91decbc5f4c8410b965611f706a65a41ea06e310475a259b08e43598705fed"> 133</a></span>  NO_INTERSECTION = 0,</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div><div class="line"><a name="l00136"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1LineIntersector.html#a01e91decbc5f4c8410b965611f706a65ac27172d289eac55bb325f5eb73564b56"> 136</a></span>  POINT_INTERSECTION = 1,</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div><div class="line"><a name="l00139"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1LineIntersector.html#a01e91decbc5f4c8410b965611f706a65a7feb3f604c1af5bfe7e422a084b0eade"> 139</a></span>  COLLINEAR_INTERSECTION = 2</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  };</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span> </div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordtype">void</span> computeIntersection(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p1, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p2,</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p3, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p4);</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  std::string toString() <span class="keyword">const</span>;</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordtype">bool</span></div><div class="line"><a name="l00154"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1LineIntersector.html#a6189821070c6a9081cb2bce8c3c54091"> 154</a></span>  <a class="code" href="classgeos_1_1algorithm_1_1LineIntersector.html#a6189821070c6a9081cb2bce8c3c54091">hasIntersection</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">return</span> result != NO_INTERSECTION;</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  }</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span> </div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordtype">size_t</span></div><div class="line"><a name="l00164"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1LineIntersector.html#afda5b273b82754400b154d1100866a2e"> 164</a></span>  <a class="code" href="classgeos_1_1algorithm_1_1LineIntersector.html#afda5b273b82754400b154d1100866a2e">getIntersectionNum</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordflow">return</span> result;</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  }</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>&</div><div class="line"><a name="l00177"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1LineIntersector.html#aa79d750d46c1bd0dd0d6091bed301c4e"> 177</a></span>  <a class="code" href="classgeos_1_1algorithm_1_1LineIntersector.html#aa79d750d46c1bd0dd0d6091bed301c4e">getIntersection</a>(<span class="keywordtype">size_t</span> intIndex)<span class="keyword"> const</span></div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordflow">return</span> intPt[intIndex];</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  }</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span> </div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> isSameSignAndNonZero(<span class="keywordtype">double</span> a, <span class="keywordtype">double</span> b);</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span> </div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keywordtype">bool</span> isIntersection(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& pt) <span class="keyword">const</span>;</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span> </div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordtype">bool</span></div><div class="line"><a name="l00215"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1LineIntersector.html#a19d15a24c61e942bd83be9ae43cda5fc"> 215</a></span>  <a class="code" href="classgeos_1_1algorithm_1_1LineIntersector.html#a19d15a24c61e942bd83be9ae43cda5fc">isProper</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keywordflow">return</span> hasIntersection() && isProperVar;</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  }</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span> </div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& getIntersectionAlongSegment(<span class="keywordtype">size_t</span> segmentIndex, <span class="keywordtype">size_t</span> intIndex);</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span> </div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordtype">size_t</span> getIndexAlongSegment(<span class="keywordtype">size_t</span> segmentIndex, <span class="keywordtype">size_t</span> intIndex);</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span> </div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keywordtype">double</span> getEdgeDistance(<span class="keywordtype">size_t</span> geomIndex, <span class="keywordtype">size_t</span> intIndex) <span class="keyword">const</span>;</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span> </div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span> </div><div class="line"><a name="l00260"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1LineIntersector.html#a6bb8df071978beb672d2afaeaa1e18d3"> 260</a></span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1PrecisionModel.html">geom::PrecisionModel</a>* <a class="code" href="classgeos_1_1algorithm_1_1LineIntersector.html#a6bb8df071978beb672d2afaeaa1e18d3">precisionModel</a>;</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span> </div><div class="line"><a name="l00262"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1LineIntersector.html#a736e0a797b44365e5c7217059849fbf6"> 262</a></span>  <span class="keywordtype">size_t</span> <a class="code" href="classgeos_1_1algorithm_1_1LineIntersector.html#a736e0a797b44365e5c7217059849fbf6">result</a>;</div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span> </div><div class="line"><a name="l00264"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1LineIntersector.html#a8197e180cd57c854434d8d97e4fcbeda"> 264</a></span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>* inputLines[2][2];</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span> </div><div class="line"><a name="l00270"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1LineIntersector.html#a5cc4fa20fb2307fefa4af83dda1fc50f"> 270</a></span>  <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> intPt[2];</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span> </div><div class="line"><a name="l00276"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1LineIntersector.html#ad80fa7e5ddffea6eebc7bd2e8e6fab81"> 276</a></span>  <span class="keywordtype">size_t</span> intLineIndex[2][2];</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span> </div><div class="line"><a name="l00278"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1LineIntersector.html#acb90a6e1bf1813c286b77d1bfcf0b1f0"> 278</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classgeos_1_1algorithm_1_1LineIntersector.html#acb90a6e1bf1813c286b77d1bfcf0b1f0">isProperVar</a>;</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="comment">//Coordinate &pa;</span></div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="comment">//Coordinate &pb;</span></div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span> </div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="keywordtype">bool</span></div><div class="line"><a name="l00283"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1LineIntersector.html#ad467b79d09ab198b889da9c3782e7120"> 283</a></span>  <a class="code" href="classgeos_1_1algorithm_1_1LineIntersector.html#ad467b79d09ab198b889da9c3782e7120">isCollinear</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keywordflow">return</span> result == COLLINEAR_INTERSECTION;</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  }</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span> </div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  uint8_t computeIntersect(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p1, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p2,</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& q1, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& q2);</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span> </div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="keywordtype">bool</span></div><div class="line"><a name="l00292"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1LineIntersector.html#af8138cb98f95d6414b2352caa026b3f1"> 292</a></span>  <a class="code" href="classgeos_1_1algorithm_1_1LineIntersector.html#af8138cb98f95d6414b2352caa026b3f1">isEndPoint</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="keywordflow">return</span> hasIntersection() && !isProperVar;</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  }</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span> </div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keywordtype">void</span> computeIntLineIndex();</div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span> </div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="keywordtype">void</span> computeIntLineIndex(<span class="keywordtype">size_t</span> segmentIndex);</div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span> </div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  uint8_t computeCollinearIntersection(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p1, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p2,</div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& q1, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& q2);</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span> </div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> intersection(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p1,</div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p2,</div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& q1,</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& q2) <span class="keyword">const</span>;</div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span> </div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="keywordtype">bool</span> isInSegmentEnvelopes(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& intPt) <span class="keyword">const</span>;</div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span> </div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span> </div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> intersectionSafe(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p1, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p2,</div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& q1, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& q2) <span class="keyword">const</span>;</div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span> </div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="keyword">static</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> nearestEndpoint(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p1,</div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p2,</div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& q1,</div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& q2);</div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span> </div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="keyword">static</span> <span class="keywordtype">double</span> zGet(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& q);</div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span> </div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="keyword">static</span> <span class="keywordtype">double</span> zGetOrInterpolate(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p,</div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p0,</div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p1);</div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span> </div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  <span class="keyword">static</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> zGetOrInterpolateCopy(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p,</div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p0,</div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p1);</div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span> </div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="keyword">static</span> <span class="keywordtype">double</span> zInterpolate(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p,</div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p0,</div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p1);</div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span> </div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="keyword">static</span> <span class="keywordtype">double</span> zInterpolate(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p,</div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p1,</div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p2,</div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& q1,</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& q2);</div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span> </div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span> };</div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span> </div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span> </div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span> } <span class="comment">// namespace geos::algorithm</span></div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span> } <span class="comment">// namespace geos</span></div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span> </div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span> </div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span> <span class="preprocessor">#endif // GEOS_ALGORITHM_LINEINTERSECTOR_H</span></div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span> </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>
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<div class="ttc" id="classgeos_1_1geom_1_1Coordinate_html"><div class="ttname"><a href="classgeos_1_1geom_1_1Coordinate.html">geos::geom::Coordinate</a></div><div class="ttdoc">Coordinate is the lightweight class used to store coordinates. </div><div class="ttdef"><b>Definition:</b> <a href="Coordinate_8h_source.html#l00060">Coordinate.h:60</a></div></div>
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<div class="ttc" id="export_8h_html"><div class="ttname"><a href="export_8h.html">export.h</a></div></div>
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<div class="ttc" id="classgeos_1_1geom_1_1PrecisionModel_html"><div class="ttname"><a href="classgeos_1_1geom_1_1PrecisionModel.html">geos::geom::PrecisionModel</a></div><div class="ttdoc">Specifies the precision model of the Coordinate in a Geometry. </div><div class="ttdef"><b>Definition:</b> <a href="PrecisionModel_8h_source.html#l00087">PrecisionModel.h:87</a></div></div>
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<div class="ttc" id="classgeos_1_1algorithm_1_1LineIntersector_html_a01e91decbc5f4c8410b965611f706a65"><div class="ttname"><a href="classgeos_1_1algorithm_1_1LineIntersector.html#a01e91decbc5f4c8410b965611f706a65">geos::algorithm::LineIntersector::intersection_type</a></div><div class="ttdeci">intersection_type</div><div class="ttdef"><b>Definition:</b> <a href="LineIntersector_8h_source.html#l00131">LineIntersector.h:131</a></div></div>
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<div class="ttc" id="classgeos_1_1algorithm_1_1LineIntersector_html_a19d15a24c61e942bd83be9ae43cda5fc"><div class="ttname"><a href="classgeos_1_1algorithm_1_1LineIntersector.html#a19d15a24c61e942bd83be9ae43cda5fc">geos::algorithm::LineIntersector::isProper</a></div><div class="ttdeci">bool isProper() const </div><div class="ttdoc">Tests whether an intersection is proper. </div><div class="ttdef"><b>Definition:</b> <a href="LineIntersector_8h_source.html#l00215">LineIntersector.h:215</a></div></div>
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<div class="ttc" id="classgeos_1_1algorithm_1_1LineIntersector_html"><div class="ttname"><a href="classgeos_1_1algorithm_1_1LineIntersector.html">geos::algorithm::LineIntersector</a></div><div class="ttdoc">A LineIntersector is an algorithm that can both test whether two line segments intersect and compute ...</div><div class="ttdef"><b>Definition:</b> <a href="LineIntersector_8h_source.html#l00049">LineIntersector.h:49</a></div></div>
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<div class="ttc" id="classgeos_1_1algorithm_1_1LineIntersector_html_af8138cb98f95d6414b2352caa026b3f1"><div class="ttname"><a href="classgeos_1_1algorithm_1_1LineIntersector.html#af8138cb98f95d6414b2352caa026b3f1">geos::algorithm::LineIntersector::isEndPoint</a></div><div class="ttdeci">bool isEndPoint() const </div><div class="ttdef"><b>Definition:</b> <a href="LineIntersector_8h_source.html#l00292">LineIntersector.h:292</a></div></div>
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<div class="ttc" id="classgeos_1_1algorithm_1_1LineIntersector_html_a6bb8df071978beb672d2afaeaa1e18d3"><div class="ttname"><a href="classgeos_1_1algorithm_1_1LineIntersector.html#a6bb8df071978beb672d2afaeaa1e18d3">geos::algorithm::LineIntersector::precisionModel</a></div><div class="ttdeci">const geom::PrecisionModel * precisionModel</div><div class="ttdef"><b>Definition:</b> <a href="LineIntersector_8h_source.html#l00260">LineIntersector.h:260</a></div></div>
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<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>
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<div class="ttc" id="classgeos_1_1algorithm_1_1LineIntersector_html_ad467b79d09ab198b889da9c3782e7120"><div class="ttname"><a href="classgeos_1_1algorithm_1_1LineIntersector.html#ad467b79d09ab198b889da9c3782e7120">geos::algorithm::LineIntersector::isCollinear</a></div><div class="ttdeci">bool isCollinear() const </div><div class="ttdef"><b>Definition:</b> <a href="LineIntersector_8h_source.html#l00283">LineIntersector.h:283</a></div></div>
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<div class="ttc" id="classgeos_1_1algorithm_1_1LineIntersector_html_acb90a6e1bf1813c286b77d1bfcf0b1f0"><div class="ttname"><a href="classgeos_1_1algorithm_1_1LineIntersector.html#acb90a6e1bf1813c286b77d1bfcf0b1f0">geos::algorithm::LineIntersector::isProperVar</a></div><div class="ttdeci">bool isProperVar</div><div class="ttdef"><b>Definition:</b> <a href="LineIntersector_8h_source.html#l00278">LineIntersector.h:278</a></div></div>
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<div class="ttc" id="classgeos_1_1algorithm_1_1LineIntersector_html_aa79d750d46c1bd0dd0d6091bed301c4e"><div class="ttname"><a href="classgeos_1_1algorithm_1_1LineIntersector.html#aa79d750d46c1bd0dd0d6091bed301c4e">geos::algorithm::LineIntersector::getIntersection</a></div><div class="ttdeci">const geom::Coordinate & getIntersection(size_t intIndex) const </div><div class="ttdef"><b>Definition:</b> <a href="LineIntersector_8h_source.html#l00177">LineIntersector.h:177</a></div></div>
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<div class="ttc" id="Coordinate_8h_html"><div class="ttname"><a href="Coordinate_8h.html">Coordinate.h</a></div></div>
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<div class="ttc" id="classgeos_1_1algorithm_1_1LineIntersector_html_a742294f2808e7d07387771ca31a6c07f"><div class="ttname"><a href="classgeos_1_1algorithm_1_1LineIntersector.html#a742294f2808e7d07387771ca31a6c07f">geos::algorithm::LineIntersector::setPrecisionModel</a></div><div class="ttdeci">void setPrecisionModel(const geom::PrecisionModel *newPM)</div><div class="ttdef"><b>Definition:</b> <a href="LineIntersector_8h_source.html#l00115">LineIntersector.h:115</a></div></div>
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<div class="ttc" id="classgeos_1_1algorithm_1_1LineIntersector_html_ac1fbd5ba547c2f1d72991298d3aad68a"><div class="ttname"><a href="classgeos_1_1algorithm_1_1LineIntersector.html#ac1fbd5ba547c2f1d72991298d3aad68a">geos::algorithm::LineIntersector::LineIntersector</a></div><div class="ttdeci">LineIntersector(const geom::PrecisionModel *initialPrecisionModel=nullptr)</div><div class="ttdef"><b>Definition:</b> <a href="LineIntersector_8h_source.html#l00081">LineIntersector.h:81</a></div></div>
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<div class="ttc" id="classgeos_1_1algorithm_1_1LineIntersector_html_a7c09750ec291a520f724c848745a8cfd"><div class="ttname"><a href="classgeos_1_1algorithm_1_1LineIntersector.html#a7c09750ec291a520f724c848745a8cfd">geos::algorithm::LineIntersector::~LineIntersector</a></div><div class="ttdeci">~LineIntersector()</div><div class="ttdef"><b>Definition:</b> <a href="LineIntersector_8h_source.html#l00088">LineIntersector.h:88</a></div></div>
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<div class="ttc" id="classgeos_1_1algorithm_1_1LineIntersector_html_a736e0a797b44365e5c7217059849fbf6"><div class="ttname"><a href="classgeos_1_1algorithm_1_1LineIntersector.html#a736e0a797b44365e5c7217059849fbf6">geos::algorithm::LineIntersector::result</a></div><div class="ttdeci">size_t result</div><div class="ttdef"><b>Definition:</b> <a href="LineIntersector_8h_source.html#l00262">LineIntersector.h:262</a></div></div>
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<div class="ttc" id="classgeos_1_1algorithm_1_1LineIntersector_html_a6189821070c6a9081cb2bce8c3c54091"><div class="ttname"><a href="classgeos_1_1algorithm_1_1LineIntersector.html#a6189821070c6a9081cb2bce8c3c54091">geos::algorithm::LineIntersector::hasIntersection</a></div><div class="ttdeci">bool hasIntersection() const </div><div class="ttdef"><b>Definition:</b> <a href="LineIntersector_8h_source.html#l00154">LineIntersector.h:154</a></div></div>
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<div class="ttc" id="classgeos_1_1algorithm_1_1LineIntersector_html_afda5b273b82754400b154d1100866a2e"><div class="ttname"><a href="classgeos_1_1algorithm_1_1LineIntersector.html#afda5b273b82754400b154d1100866a2e">geos::algorithm::LineIntersector::getIntersectionNum</a></div><div class="ttdeci">size_t getIntersectionNum() const </div><div class="ttdef"><b>Definition:</b> <a href="LineIntersector_8h_source.html#l00164">LineIntersector.h:164</a></div></div>
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