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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.5"/> <title>GEOS: TrianglePredicate.h Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td style="padding-left: 0.5em;"> <div id="projectname">GEOS  <span id="projectnumber">3.5.0</span> </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated 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class="header"> <div class="headertitle"> <div class="title">TrianglePredicate.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) 2012 Excensus LLC.</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 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: triangulate/quadedge/TrianglePredicate.java r524</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_TRIANGULATE_QUADEDGE_TRIANGLEPREDICATE_H</span></div> <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor"></span><span class="preprocessor">#define GEOS_TRIANGULATE_QUADEDGE_TRIANGLEPREDICATE_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="keyword">namespace </span>geos {</div> <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">namespace </span>geom { <span class="comment">// geos.geom</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">class </span>Coordinate;</div> <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div> <div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="classgeos_1_1geom_1_1TrianglePredicate.html"> 41</a></span> <span class="keyword">class </span><a class="code" href="classgeos_1_1geom_1_1TrianglePredicate.html">TrianglePredicate</a> </div> <div class="line"><a name="l00042"></a><span class="lineno"> 42</span> {</div> <div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="keyword">public</span>:</div> <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code" href="classgeos_1_1geom_1_1TrianglePredicate.html#a4d0ea01581335fb924a8d9ca07e79f62">isInCircleNonRobust</a>(</div> <div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">Coordinate</a> &a, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">Coordinate</a> &b, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">Coordinate</a> &c, </div> <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">Coordinate</a> &p);</div> <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  </div> <div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code" href="classgeos_1_1geom_1_1TrianglePredicate.html#af4ec435ac5d64e87e5ff744d005f3cf9">isInCircleNormalized</a>(</div> <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">Coordinate</a> &a, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">Coordinate</a> &b, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">Coordinate</a> &c, </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">Coordinate</a> &p);</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> <span class="keyword">private</span>: </div> <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keyword">static</span> <span class="keywordtype">double</span> triArea(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">Coordinate</a> &a,</div> <div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">Coordinate</a> &b, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">Coordinate</a> &c);</div> <div class="line"><a name="l00092"></a><span class="lineno"> 92</span> </div> <div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="keyword">public</span>:</div> <div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code" href="classgeos_1_1geom_1_1TrianglePredicate.html#aee361c581eb83e761cfcdb5844382876">isInCircleRobust</a>(</div> <div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">Coordinate</a> &a, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">Coordinate</a> &b, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">Coordinate</a> &c, </div> <div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">Coordinate</a> &p);</div> <div class="line"><a name="l00108"></a><span class="lineno"> 108</span> } ;</div> <div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div> <div class="line"><a name="l00110"></a><span class="lineno"> 110</span> } <span class="comment">// namespace geos.geom</span></div> <div class="line"><a name="l00111"></a><span class="lineno"> 111</span> } <span class="comment">// namespace geos</span></div> <div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div> <div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="preprocessor">#endif //GEOS_TRIANGULATE_QUADEDGE_TRIANGLEPREDICATE_H</span></div> <div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="preprocessor"></span></div> <div class="ttc" id="classgeos_1_1geom_1_1TrianglePredicate_html_a4d0ea01581335fb924a8d9ca07e79f62"><div class="ttname"><a href="classgeos_1_1geom_1_1TrianglePredicate.html#a4d0ea01581335fb924a8d9ca07e79f62">geos::geom::TrianglePredicate::isInCircleNonRobust</a></div><div class="ttdeci">static bool isInCircleNonRobust(const Coordinate &a, const Coordinate &b, const Coordinate &c, const Coordinate &p)</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_1geom_1_1TrianglePredicate_html_af4ec435ac5d64e87e5ff744d005f3cf9"><div class="ttname"><a href="classgeos_1_1geom_1_1TrianglePredicate.html#af4ec435ac5d64e87e5ff744d005f3cf9">geos::geom::TrianglePredicate::isInCircleNormalized</a></div><div class="ttdeci">static bool isInCircleNormalized(const Coordinate &a, const Coordinate &b, const Coordinate &c, const Coordinate &p)</div></div> <div class="ttc" id="classgeos_1_1geom_1_1TrianglePredicate_html"><div class="ttname"><a href="classgeos_1_1geom_1_1TrianglePredicate.html">geos::geom::TrianglePredicate</a></div><div class="ttdef"><b>Definition:</b> TrianglePredicate.h:41</div></div> <div class="ttc" id="classgeos_1_1geom_1_1TrianglePredicate_html_aee361c581eb83e761cfcdb5844382876"><div class="ttname"><a href="classgeos_1_1geom_1_1TrianglePredicate.html#aee361c581eb83e761cfcdb5844382876">geos::geom::TrianglePredicate::isInCircleRobust</a></div><div class="ttdeci">static bool isInCircleRobust(const Coordinate &a, const Coordinate &b, const Coordinate &c, const Coordinate &p)</div></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>