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</div> </div><!--header--> <div class="contents"> <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) 2006 Refractions Research Inc.</span></div> <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> *</span></div> <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <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> <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> <span class="comment"> * by the Free Software Foundation. </span></div> <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * See the COPYING file for more information.</span></div> <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> *</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> </div> <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#ifndef GEOS_GEOM_PREP_SEGMENTINTERSECTIONDETECTOR_H</span></div> <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor"></span><span class="preprocessor">#define GEOS_GEOM_PREP_SEGMENTINTERSECTIONDETECTOR_H</span></div> <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor"></span></div> <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <geos/noding/SegmentIntersector.h></span></div> <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <geos/algorithm/LineIntersector.h></span></div> <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <geos/geom/Coordinate.h></span></div> <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <geos/geom/CoordinateSequence.h></span></div> <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <geos/noding/SegmentString.h></span></div> <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div> <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">using namespace </span>geos::algorithm;</div> <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div> <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">namespace </span>geos {</div> <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">namespace </span>noding { <span class="comment">// geos::noding</span></div> <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div> <div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="classgeos_1_1noding_1_1SegmentIntersectionDetector.html"> 43</a></span> <span class="keyword">class </span><a class="code" href="classgeos_1_1noding_1_1SegmentIntersectionDetector.html">SegmentIntersectionDetector</a> : <span class="keyword">public</span> <a class="code" href="classgeos_1_1noding_1_1SegmentIntersector.html">SegmentIntersector</a> </div> <div class="line"><a name="l00044"></a><span class="lineno"> 44</span> {</div> <div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="keyword">private</span>:</div> <div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <a class="code" href="classgeos_1_1algorithm_1_1LineIntersector.html">LineIntersector</a> * li;</div> <div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div> <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordtype">bool</span> findProper;</div> <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordtype">bool</span> findAllTypes;</div> <div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div> <div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordtype">bool</span> _hasIntersection;</div> <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordtype">bool</span> _hasProperIntersection;</div> <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordtype">bool</span> _hasNonProperIntersection;</div> <div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div> <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> * intPt;</div> <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <a class="code" href="classgeos_1_1geom_1_1CoordinateSequence.html">geom::CoordinateSequence</a> * intSegments;</div> <div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div> <div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="keyword">protected</span>:</div> <div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="keyword">public</span>:</div> <div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <a class="code" href="classgeos_1_1noding_1_1SegmentIntersectionDetector.html">SegmentIntersectionDetector</a>( <a class="code" href="classgeos_1_1algorithm_1_1LineIntersector.html">LineIntersector</a> * li) </div> <div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  :</div> <div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  li( li),</div> <div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  findProper(<span class="keyword">false</span>),</div> <div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  findAllTypes(<span class="keyword">false</span>),</div> <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  _hasIntersection(<span class="keyword">false</span>),</div> <div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  _hasProperIntersection(<span class="keyword">false</span>),</div> <div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  _hasNonProperIntersection(<span class="keyword">false</span>),</div> <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  intPt( NULL),</div> <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  intSegments( NULL)</div> <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  { }</div> <div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div> <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  ~<a class="code" href="classgeos_1_1noding_1_1SegmentIntersectionDetector.html">SegmentIntersectionDetector</a>()</div> <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  {</div> <div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="comment">//delete intPt;</span></div> <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keyword">delete</span> intSegments;</div> <div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  }</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> </div> <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordtype">void</span> setFindProper( <span class="keywordtype">bool</span> findProper)</div> <div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  {</div> <div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  this->findProper = findProper;</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>  </div> <div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordtype">void</span> setFindAllIntersectionTypes( <span class="keywordtype">bool</span> findAllTypes)</div> <div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  {</div> <div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  this->findAllTypes = findAllTypes;</div> <div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  }</div> <div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  </div> <div class="line"><a name="l00094"></a><span class="lineno"><a class="line" href="classgeos_1_1noding_1_1SegmentIntersectionDetector.html#adb04288ed28b12593d58f0d767ec9064"> 94</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classgeos_1_1noding_1_1SegmentIntersectionDetector.html#adb04288ed28b12593d58f0d767ec9064">hasIntersection</a>()<span class="keyword"> const</span></div> <div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="keyword"> </span>{ </div> <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">return</span> _hasIntersection; </div> <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  }</div> <div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  </div> <div class="line"><a name="l00104"></a><span class="lineno"><a class="line" href="classgeos_1_1noding_1_1SegmentIntersectionDetector.html#a506450066c5a2897ca109c269c47fd89"> 104</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classgeos_1_1noding_1_1SegmentIntersectionDetector.html#a506450066c5a2897ca109c269c47fd89">hasProperIntersection</a>()<span class="keyword"> const </span></div> <div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="keyword"> </span>{ </div> <div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">return</span> _hasProperIntersection; </div> <div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  }</div> <div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  </div> <div class="line"><a name="l00114"></a><span class="lineno"><a class="line" href="classgeos_1_1noding_1_1SegmentIntersectionDetector.html#aa7542ef3ed118313eabce3a8ddf766ed"> 114</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classgeos_1_1noding_1_1SegmentIntersectionDetector.html#aa7542ef3ed118313eabce3a8ddf766ed">hasNonProperIntersection</a>()<span class="keyword"> const</span></div> <div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="keyword"> </span>{ </div> <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">return</span> _hasNonProperIntersection; </div> <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  }</div> <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  </div> <div class="line"><a name="l00125"></a><span class="lineno"><a class="line" href="classgeos_1_1noding_1_1SegmentIntersectionDetector.html#aa13289ab24e47df9c67a503ce2880945"> 125</a></span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> * <span class="keyword">const</span> <a class="code" href="classgeos_1_1noding_1_1SegmentIntersectionDetector.html#aa13289ab24e47df9c67a503ce2880945">getIntersection</a>()<span class="keyword"> const</span></div> <div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="keyword"> </span>{ </div> <div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">return</span> intPt; </div> <div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  }</div> <div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div> <div class="line"><a name="l00130"></a><span class="lineno"> 130</span> </div> <div class="line"><a name="l00136"></a><span class="lineno"><a class="line" href="classgeos_1_1noding_1_1SegmentIntersectionDetector.html#a378dc2d15f6a4f759daf5d9b32e5f259"> 136</a></span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1CoordinateSequence.html">geom::CoordinateSequence</a> * <a class="code" href="classgeos_1_1noding_1_1SegmentIntersectionDetector.html#a378dc2d15f6a4f759daf5d9b32e5f259">getIntersectionSegments</a>()<span class="keyword"> const</span></div> <div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="keyword"> </span>{</div> <div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordflow">return</span> intSegments;</div> <div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  }</div> <div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  </div> <div class="line"><a name="l00141"></a><span class="lineno"><a class="line" href="classgeos_1_1noding_1_1SegmentIntersectionDetector.html#a7696b62e218cd0c5dd221d8737f275e9"> 141</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classgeos_1_1noding_1_1SegmentIntersectionDetector.html#a7696b62e218cd0c5dd221d8737f275e9">isDone</a>()<span class="keyword"> const</span></div> <div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="keyword"> </span>{ </div> <div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="comment">// If finding all types, we can stop</span></div> <div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="comment">// when both possible types have been found.</span></div> <div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">if</span> (findAllTypes)</div> <div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">return</span> _hasProperIntersection && _hasNonProperIntersection;</div> <div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div> <div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="comment">// If searching for a proper intersection, only stop if one is found</span></div> <div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordflow">if</span> (findProper)</div> <div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordflow">return</span> _hasProperIntersection;</div> <div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div> <div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">return</span> _hasIntersection;</div> <div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  }</div> <div class="line"><a name="l00154"></a><span class="lineno"> 154</span> </div> <div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordtype">void</span> processIntersections( <a class="code" href="classgeos_1_1noding_1_1SegmentString.html">noding::SegmentString</a> * e0, <span class="keywordtype">int</span> segIndex0,</div> <div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <a class="code" href="classgeos_1_1noding_1_1SegmentString.html">noding::SegmentString</a> * e1, <span class="keywordtype">int</span> segIndex1 );</div> <div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  </div> <div class="line"><a name="l00166"></a><span class="lineno"> 166</span> };</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> } <span class="comment">// namespace geos::noding</span></div> <div class="line"><a name="l00169"></a><span class="lineno"> 169</span> } <span class="comment">// namespace geos</span></div> <div class="line"><a name="l00170"></a><span class="lineno"> 170</span> </div> <div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="preprocessor">#endif // GEOS_GEOM_PREP_SEGMENTINTERSECTIONDETECTOR_H</span></div> <div class="ttc" id="classgeos_1_1noding_1_1SegmentIntersectionDetector_html"><div class="ttname"><a href="classgeos_1_1noding_1_1SegmentIntersectionDetector.html">geos::noding::SegmentIntersectionDetector</a></div><div class="ttdoc">Detects and records an intersection between two SegmentStrings, if one exists. </div><div class="ttdef"><b>Definition:</b> SegmentIntersectionDetector.h:43</div></div> <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> Coordinate.h:60</div></div> <div class="ttc" id="classgeos_1_1noding_1_1SegmentString_html"><div class="ttname"><a href="classgeos_1_1noding_1_1SegmentString.html">geos::noding::SegmentString</a></div><div class="ttdoc">An interface for classes which represent a sequence of contiguous line segments. </div><div class="ttdef"><b>Definition:</b> SegmentString.h:46</div></div> <div class="ttc" id="classgeos_1_1noding_1_1SegmentIntersectionDetector_html_aa7542ef3ed118313eabce3a8ddf766ed"><div class="ttname"><a href="classgeos_1_1noding_1_1SegmentIntersectionDetector.html#aa7542ef3ed118313eabce3a8ddf766ed">geos::noding::SegmentIntersectionDetector::hasNonProperIntersection</a></div><div class="ttdeci">bool hasNonProperIntersection() const </div><div class="ttdef"><b>Definition:</b> SegmentIntersectionDetector.h:114</div></div> <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> LineIntersector.h:49</div></div> <div class="ttc" id="classgeos_1_1noding_1_1SegmentIntersectionDetector_html_a378dc2d15f6a4f759daf5d9b32e5f259"><div class="ttname"><a href="classgeos_1_1noding_1_1SegmentIntersectionDetector.html#a378dc2d15f6a4f759daf5d9b32e5f259">geos::noding::SegmentIntersectionDetector::getIntersectionSegments</a></div><div class="ttdeci">const geom::CoordinateSequence * getIntersectionSegments() const </div><div class="ttdef"><b>Definition:</b> SegmentIntersectionDetector.h:136</div></div> <div class="ttc" id="classgeos_1_1noding_1_1SegmentIntersector_html"><div class="ttname"><a href="classgeos_1_1noding_1_1SegmentIntersector.html">geos::noding::SegmentIntersector</a></div><div class="ttdoc">Processes possible intersections detected by a Noder. </div><div class="ttdef"><b>Definition:</b> noding/SegmentIntersector.h:47</div></div> <div class="ttc" id="classgeos_1_1noding_1_1SegmentIntersectionDetector_html_aa13289ab24e47df9c67a503ce2880945"><div class="ttname"><a href="classgeos_1_1noding_1_1SegmentIntersectionDetector.html#aa13289ab24e47df9c67a503ce2880945">geos::noding::SegmentIntersectionDetector::getIntersection</a></div><div class="ttdeci">const geom::Coordinate *const getIntersection() const </div><div class="ttdef"><b>Definition:</b> SegmentIntersectionDetector.h:125</div></div> <div class="ttc" id="classgeos_1_1geom_1_1CoordinateSequence_html"><div class="ttname"><a href="classgeos_1_1geom_1_1CoordinateSequence.html">geos::geom::CoordinateSequence</a></div><div class="ttdoc">The internal representation of a list of coordinates inside a Geometry. </div><div class="ttdef"><b>Definition:</b> CoordinateSequence.h:59</div></div> <div class="ttc" id="classgeos_1_1noding_1_1SegmentIntersectionDetector_html_adb04288ed28b12593d58f0d767ec9064"><div class="ttname"><a href="classgeos_1_1noding_1_1SegmentIntersectionDetector.html#adb04288ed28b12593d58f0d767ec9064">geos::noding::SegmentIntersectionDetector::hasIntersection</a></div><div class="ttdeci">bool hasIntersection() const </div><div class="ttdef"><b>Definition:</b> SegmentIntersectionDetector.h:94</div></div> <div class="ttc" id="classgeos_1_1noding_1_1SegmentIntersectionDetector_html_a7696b62e218cd0c5dd221d8737f275e9"><div class="ttname"><a href="classgeos_1_1noding_1_1SegmentIntersectionDetector.html#a7696b62e218cd0c5dd221d8737f275e9">geos::noding::SegmentIntersectionDetector::isDone</a></div><div class="ttdeci">bool isDone() const </div><div class="ttdoc">Reports whether the client of this class needs to continue testing all intersections in an arrangemen...</div><div class="ttdef"><b>Definition:</b> SegmentIntersectionDetector.h:141</div></div> <div class="ttc" id="classgeos_1_1noding_1_1SegmentIntersectionDetector_html_a506450066c5a2897ca109c269c47fd89"><div class="ttname"><a href="classgeos_1_1noding_1_1SegmentIntersectionDetector.html#a506450066c5a2897ca109c269c47fd89">geos::noding::SegmentIntersectionDetector::hasProperIntersection</a></div><div class="ttdeci">bool hasProperIntersection() const </div><div class="ttdef"><b>Definition:</b> SegmentIntersectionDetector.h:104</div></div> </div><!-- 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