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class="headertitle"> <div class="title">MinimumBoundingCircle.h</div> </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) 2019 Paul Ramsey <pramsey@cleverelephant.ca></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> <span class="comment"> * Last port: algorithm/MinimumBoundingCircle.java 2019-01-23</span></div> <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> *</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> </div> <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#ifndef GEOS_ALGORITHM_MINIMUMBOUNDINGCIRCLE_H</span></div> <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor"></span><span class="preprocessor">#define GEOS_ALGORITHM_MINIMUMBOUNDINGCIRCLE_H</span></div> <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor"></span></div> <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <geos/export.h></span></div> <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <geos/geom/Coordinate.h></span></div> <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <geos/geom/CoordinateSequence.h></span></div> <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <geos/geom/Geometry.h></span></div> <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <geos/geom/Point.h></span></div> <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <geos/geom/Triangle.h></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="preprocessor">#include <vector></span></div> <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div> <div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment">// Forward declarations</span></div> <div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment">// namespace geos {</span></div> <div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment">// namespace geom {</span></div> <div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment">// class GeometryCollection;</span></div> <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment">// }</span></div> <div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment">// }</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>geos {</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="l00042"></a><span class="lineno"> 42</span> <span class="keyword">class </span>GEOS_DLL MinimumBoundingCircle {</div> <div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div> <div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="keyword">private</span>:</div> <div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div> <div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="comment">// member variables</span></div> <div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">const</span> geom::Geometry* input;</div> <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  std::vector<geom::Coordinate> extremalPts;</div> <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  geom::Coordinate centre;</div> <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordtype">double</span> radius;</div> <div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div> <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordtype">void</span> computeCentre();</div> <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordtype">void</span> compute();</div> <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordtype">void</span> computeCirclePoints();</div> <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  geom::Coordinate lowestPoint(std::vector<geom::Coordinate>& pts);</div> <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  geom::Coordinate pointWitMinAngleWithX(std::vector<geom::Coordinate>& pts, geom::Coordinate& P);</div> <div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  geom::Coordinate pointWithMinAngleWithSegment(std::vector<geom::Coordinate>& pts,</div> <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  geom::Coordinate& P, geom::Coordinate& Q);</div> <div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div> <div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div> <div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="keyword">public</span>:</div> <div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div> <div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  MinimumBoundingCircle(<span class="keyword">const</span> geom::Geometry* geom):</div> <div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  input(nullptr),</div> <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  radius(0.0)</div> <div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  {</div> <div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  input = geom;</div> <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  centre.setNull();</div> <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  }</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>  ~MinimumBoundingCircle() {};</div> <div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div> <div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  std::unique_ptr<geom::Geometry> getCircle();</div> <div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div> <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  std::unique_ptr<geom::Geometry> getFarthestPoints();</div> <div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div> <div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  std::unique_ptr<geom::Geometry> getDiameter();</div> <div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div> <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  std::vector<geom::Coordinate> getExtremalPoints();</div> <div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div> <div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  geom::Coordinate getCentre();</div> <div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div> <div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordtype">double</span> getRadius();</div> <div class="line"><a name="l00132"></a><span class="lineno"> 132</span> </div> <div class="line"><a name="l00133"></a><span class="lineno"> 133</span> };</div> <div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div> <div class="line"><a name="l00135"></a><span class="lineno"> 135</span> } <span class="comment">// namespace geos::algorithm</span></div> <div class="line"><a name="l00136"></a><span class="lineno"> 136</span> } <span class="comment">// namespace geos</span></div> <div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div> <div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="preprocessor">#endif // GEOS_ALGORITHM_MINIMUMBOUNDINGCIRCLE_H</span></div> <div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="preprocessor"></span></div> </div><!-- fragment --></div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/> </a> 1.8.5 </small></address> </body> </html>