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<a href="MinimumDiameter_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/MinimumDiameter.java r966</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_MINIMUMDIAMETER_H</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#define GEOS_ALGORITHM_MINIMUMDIAMETER_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="Coordinate_8h.html">geos/geom/Coordinate.h</a>></span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <<a class="code" href="LineSegment_8h.html">geos/geom/LineSegment.h</a>></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 <memory></span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <<a class="code" href="export_8h.html">geos/export.h</a>></span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">// Forward declarations</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">namespace </span><a class="code" href="namespacegeos.html">geos</a> {</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">namespace </span>geom {</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">class </span>Geometry;</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">class </span>LineString;</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">class </span>CoordinateSequence;</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> }</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> }</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="keyword">namespace </span><a class="code" href="namespacegeos.html">geos</a> {</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">namespace </span>algorithm { <span class="comment">// geos::algorithm</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div><div class="line"><a name="l00063"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1MinimumDiameter.html"> 63</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_1MinimumDiameter.html">MinimumDiameter</a> {</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00065"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1MinimumDiameter.html#ae8402e87a00a3b9ded585a3b49493932"> 65</a></span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* <a class="code" href="classgeos_1_1algorithm_1_1MinimumDiameter.html#ae8402e87a00a3b9ded585a3b49493932">inputGeom</a>;</div><div class="line"><a name="l00066"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1MinimumDiameter.html#a51d8fc7fd976b8e7be902ba1a59ab032"> 66</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classgeos_1_1algorithm_1_1MinimumDiameter.html#a51d8fc7fd976b8e7be902ba1a59ab032">isConvex</a>;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div><div class="line"><a name="l00068"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1MinimumDiameter.html#a5c6beef02f3a59549a517e6d236aa041"> 68</a></span>  std::unique_ptr<geom::CoordinateSequence> <a class="code" href="classgeos_1_1algorithm_1_1MinimumDiameter.html#a5c6beef02f3a59549a517e6d236aa041">convexHullPts</a>;</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div><div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1MinimumDiameter.html#a80f13938f12d0c94fbfebd791bf569fd"> 70</a></span>  <a class="code" href="classgeos_1_1geom_1_1LineSegment.html">geom::LineSegment</a> <a class="code" href="classgeos_1_1algorithm_1_1MinimumDiameter.html#a80f13938f12d0c94fbfebd791bf569fd">minBaseSeg</a>;</div><div class="line"><a name="l00071"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1MinimumDiameter.html#aeb38c30c98bbb8c6212e680e2a00e52e"> 71</a></span>  <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> <a class="code" href="classgeos_1_1algorithm_1_1MinimumDiameter.html#aeb38c30c98bbb8c6212e680e2a00e52e">minWidthPt</a>;</div><div class="line"><a name="l00072"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1MinimumDiameter.html#a9b7500666f38e22957c4a808e8d3a46f"> 72</a></span>  <span class="keywordtype">size_t</span> <a class="code" href="classgeos_1_1algorithm_1_1MinimumDiameter.html#a9b7500666f38e22957c4a808e8d3a46f">minPtIndex</a>;</div><div class="line"><a name="l00073"></a><span class="lineno"><a class="line" href="classgeos_1_1algorithm_1_1MinimumDiameter.html#a0fa35c41bc81ca2d0d4b51ce22a6e93f"> 73</a></span>  <span class="keywordtype">double</span> <a class="code" href="classgeos_1_1algorithm_1_1MinimumDiameter.html#a0fa35c41bc81ca2d0d4b51ce22a6e93f">minWidth</a>;</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordtype">void</span> computeMinimumDiameter();</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordtype">void</span> computeWidthConvex(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* geom);</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordtype">void</span> computeConvexRingMinDiameter(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1CoordinateSequence.html">geom::CoordinateSequence</a>* pts);</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>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> findMaxPerpDistance(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1CoordinateSequence.html">geom::CoordinateSequence</a>* pts,</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1LineSegment.html">geom::LineSegment</a>* seg, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> startIndex);</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getNextIndex(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1CoordinateSequence.html">geom::CoordinateSequence</a>* pts,</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> index);</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keyword">static</span> <span class="keywordtype">double</span> computeC(<span class="keywordtype">double</span> a, <span class="keywordtype">double</span> b, <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="l00093"></a><span class="lineno"> 93</span> </div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keyword">static</span> <a class="code" href="classgeos_1_1geom_1_1LineSegment.html">geom::LineSegment</a> computeSegmentForLine(<span class="keywordtype">double</span> a, <span class="keywordtype">double</span> b, <span class="keywordtype">double</span> c);</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  ~<a class="code" href="classgeos_1_1algorithm_1_1MinimumDiameter.html">MinimumDiameter</a>() = <span class="keywordflow">default</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"> 104</span>  <a class="code" href="classgeos_1_1algorithm_1_1MinimumDiameter.html">MinimumDiameter</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* newInputGeom);</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <a class="code" href="classgeos_1_1algorithm_1_1MinimumDiameter.html">MinimumDiameter</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* newInputGeom,</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> newIsConvex);</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordtype">double</span> getLength();</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> </div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& getWidthCoordinate();</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  std::unique_ptr<geom::LineString> getSupportingSegment();</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  std::unique_ptr<geom::LineString> getDiameter();</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  std::unique_ptr<geom::Geometry> getMinimumRectangle();</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span> </div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keyword">static</span> std::unique_ptr<geom::Geometry> getMinimumRectangle(<a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* geom);</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> </div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keyword">static</span> std::unique_ptr<geom::Geometry> getMinimumDiameter(<a class="code" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* geom);</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span> };</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span> </div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span> } <span class="comment">// namespace geos::algorithm</span></div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> } <span class="comment">// namespace geos</span></div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span> </div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="preprocessor">#endif // GEOS_ALGORITHM_MINIMUMDIAMETER_H</span></div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span> </div><div class="ttc" id="classgeos_1_1geom_1_1LineSegment_html"><div class="ttname"><a href="classgeos_1_1geom_1_1LineSegment.html">geos::geom::LineSegment</a></div><div class="ttdef"><b>Definition:</b> <a href="LineSegment_8h_source.html#l00059">LineSegment.h:59</a></div></div>
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<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_1algorithm_1_1MinimumDiameter_html_a51d8fc7fd976b8e7be902ba1a59ab032"><div class="ttname"><a href="classgeos_1_1algorithm_1_1MinimumDiameter.html#a51d8fc7fd976b8e7be902ba1a59ab032">geos::algorithm::MinimumDiameter::isConvex</a></div><div class="ttdeci">bool isConvex</div><div class="ttdef"><b>Definition:</b> <a href="MinimumDiameter_8h_source.html#l00066">MinimumDiameter.h:66</a></div></div>
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<div class="ttc" id="classgeos_1_1algorithm_1_1MinimumDiameter_html_a80f13938f12d0c94fbfebd791bf569fd"><div class="ttname"><a href="classgeos_1_1algorithm_1_1MinimumDiameter.html#a80f13938f12d0c94fbfebd791bf569fd">geos::algorithm::MinimumDiameter::minBaseSeg</a></div><div class="ttdeci">geom::LineSegment minBaseSeg</div><div class="ttdef"><b>Definition:</b> <a href="MinimumDiameter_8h_source.html#l00070">MinimumDiameter.h:70</a></div></div>
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<div class="ttc" id="classgeos_1_1algorithm_1_1MinimumDiameter_html_a0fa35c41bc81ca2d0d4b51ce22a6e93f"><div class="ttname"><a href="classgeos_1_1algorithm_1_1MinimumDiameter.html#a0fa35c41bc81ca2d0d4b51ce22a6e93f">geos::algorithm::MinimumDiameter::minWidth</a></div><div class="ttdeci">double minWidth</div><div class="ttdef"><b>Definition:</b> <a href="MinimumDiameter_8h_source.html#l00073">MinimumDiameter.h:73</a></div></div>
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<div class="ttc" id="classgeos_1_1geom_1_1Geometry_html"><div class="ttname"><a href="classgeos_1_1geom_1_1Geometry.html">geos::geom::Geometry</a></div><div class="ttdoc">Basic implementation of Geometry, constructed and destructed by GeometryFactory. </div><div class="ttdef"><b>Definition:</b> <a href="Geometry_8h_source.html#l00188">Geometry.h:188</a></div></div>
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<div class="ttc" id="classgeos_1_1algorithm_1_1MinimumDiameter_html_a9b7500666f38e22957c4a808e8d3a46f"><div class="ttname"><a href="classgeos_1_1algorithm_1_1MinimumDiameter.html#a9b7500666f38e22957c4a808e8d3a46f">geos::algorithm::MinimumDiameter::minPtIndex</a></div><div class="ttdeci">size_t minPtIndex</div><div class="ttdef"><b>Definition:</b> <a href="MinimumDiameter_8h_source.html#l00072">MinimumDiameter.h:72</a></div></div>
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<div class="ttc" id="classgeos_1_1algorithm_1_1MinimumDiameter_html_ae8402e87a00a3b9ded585a3b49493932"><div class="ttname"><a href="classgeos_1_1algorithm_1_1MinimumDiameter.html#ae8402e87a00a3b9ded585a3b49493932">geos::algorithm::MinimumDiameter::inputGeom</a></div><div class="ttdeci">const geom::Geometry * inputGeom</div><div class="ttdef"><b>Definition:</b> <a href="MinimumDiameter_8h_source.html#l00065">MinimumDiameter.h:65</a></div></div>
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<div class="ttc" id="LineSegment_8h_html"><div class="ttname"><a href="LineSegment_8h.html">LineSegment.h</a></div></div>
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<div class="ttc" id="classgeos_1_1algorithm_1_1MinimumDiameter_html_aeb38c30c98bbb8c6212e680e2a00e52e"><div class="ttname"><a href="classgeos_1_1algorithm_1_1MinimumDiameter.html#aeb38c30c98bbb8c6212e680e2a00e52e">geos::algorithm::MinimumDiameter::minWidthPt</a></div><div class="ttdeci">geom::Coordinate minWidthPt</div><div class="ttdef"><b>Definition:</b> <a href="MinimumDiameter_8h_source.html#l00071">MinimumDiameter.h:71</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_1MinimumDiameter_html"><div class="ttname"><a href="classgeos_1_1algorithm_1_1MinimumDiameter.html">geos::algorithm::MinimumDiameter</a></div><div class="ttdoc">Computes the minimum diameter of a geom::Geometry. </div><div class="ttdef"><b>Definition:</b> <a href="MinimumDiameter_8h_source.html#l00063">MinimumDiameter.h:63</a></div></div>
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<div class="ttc" id="classgeos_1_1algorithm_1_1MinimumDiameter_html_a5c6beef02f3a59549a517e6d236aa041"><div class="ttname"><a href="classgeos_1_1algorithm_1_1MinimumDiameter.html#a5c6beef02f3a59549a517e6d236aa041">geos::algorithm::MinimumDiameter::convexHullPts</a></div><div class="ttdeci">std::unique_ptr< geom::CoordinateSequence > convexHullPts</div><div class="ttdef"><b>Definition:</b> <a href="MinimumDiameter_8h_source.html#l00068">MinimumDiameter.h:68</a></div></div>
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<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> <a href="CoordinateSequence_8h_source.html#l00058">CoordinateSequence.h:58</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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