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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: HotPixel.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 by Doxygen 1.8.5 --> <div id="navrow1" class="tabs"> <ul class="tablist"> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> <li><a href="namespaces.html"><span>Namespaces</span></a></li> <li><a href="annotated.html"><span>Classes</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul> </div> <div id="navrow2" class="tabs2"> <ul class="tablist"> <li><a href="files.html"><span>File List</span></a></li> </ul> </div> <div id="nav-path" class="navpath"> <ul> <li class="navelem"><a class="el" href="dir_78009f08da3e03d86b70776dcc463e92.html">include</a></li><li class="navelem"><a class="el" href="dir_40c9e98f0599f998dfc16f8b0ec4bf37.html">geos</a></li><li class="navelem"><a class="el" href="dir_532943f043298e0a48be33fb828445b8.html">noding</a></li><li class="navelem"><a class="el" href="dir_7ae578324c6bed8cf39d96719d49ee4a.html">snapround</a></li> </ul> </div> </div><!-- top --> <div class="header"> <div class="headertitle"> <div class="title">HotPixel.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) 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> <span class="comment"> * Last port: noding/snapround/HotPixel.java r320 (JTS-1.12)</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_NODING_SNAPROUND_HOTPIXEL_H</span></div> <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor"></span><span class="preprocessor">#define GEOS_NODING_SNAPROUND_HOTPIXEL_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> </div> <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <geos/inline.h></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 <geos/geom/Coordinate.h></span> <span class="comment">// for composition</span></div> <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <geos/geom/Envelope.h></span> <span class="comment">// for auto_ptr</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">#ifdef _MSC_VER</span></div> <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor"></span><span class="preprocessor">#pragma warning(push)</span></div> <div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor"></span><span class="preprocessor">#pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class</span></div> <div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> <div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor"></span></div> <div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment">// Forward declarations</span></div> <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">namespace </span>geos {</div> <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keyword">namespace </span>geom {</div> <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keyword">class </span>Envelope;</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>algorithm {</div> <div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keyword">class </span>LineIntersector;</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">namespace </span>noding {</div> <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keyword">class </span>NodedSegmentString;</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> }</div> <div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div> <div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="keyword">namespace </span>geos {</div> <div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="keyword">namespace </span>noding { <span class="comment">// geos::noding</span></div> <div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="namespacegeos_1_1noding_1_1snapround.html"> 49</a></span> <span class="keyword">namespace </span>snapround { <span class="comment">// geos::noding::snapround</span></div> <div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div> <div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html"> 62</a></span> <span class="keyword">class </span>GEOS_DLL <a class="code" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html">HotPixel</a> {</div> <div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </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"> 65</span> </div> <div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <a class="code" href="classgeos_1_1algorithm_1_1LineIntersector.html">algorithm::LineIntersector</a>& li;</div> <div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div> <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> pt;</div> <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& originalPt;</div> <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> ptScaled;</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>  <span class="keyword">mutable</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> p0Scaled;</div> <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keyword">mutable</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> p1Scaled;</div> <div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div> <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordtype">double</span> scaleFactor;</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>  <span class="keywordtype">double</span> minx;</div> <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordtype">double</span> maxx;</div> <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordtype">double</span> miny;</div> <div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordtype">double</span> maxy;</div> <div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div> <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  std::vector<geom::Coordinate> corner;</div> <div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div> <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keyword">mutable</span> std::auto_ptr<geom::Envelope> safeEnv; </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="keywordtype">void</span> initCorners(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& pt);</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="keywordtype">double</span> scale(<span class="keywordtype">double</span> val) <span class="keyword">const</span>;</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>  <span class="keywordtype">void</span> copyScaled(<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="l00099"></a><span class="lineno"> 99</span>  <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& pScaled) <span class="keyword">const</span>;</div> <div class="line"><a name="l00100"></a><span class="lineno"> 100</span> </div> <div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordtype">bool</span> intersectsToleranceSquare(<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="l00123"></a><span class="lineno"> 123</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p1) <span class="keyword">const</span>;</div> <div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  </div> <div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div> <div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordtype">bool</span> intersectsPixelClosure(<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="l00141"></a><span class="lineno"> 141</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="l00142"></a><span class="lineno"> 142</span> </div> <div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordtype">bool</span> intersectsScaled(<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="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>& p1) <span class="keyword">const</span>;</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>  <span class="comment">// Declare type as noncopyable</span></div> <div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <a class="code" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html">HotPixel</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html">HotPixel</a>& other);</div> <div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <a class="code" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html">HotPixel</a>& operator=(<span class="keyword">const</span> <a class="code" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html">HotPixel</a>& rhs);</div> <div class="line"><a name="l00149"></a><span class="lineno"> 149</span> </div> <div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="keyword">public</span>:</div> <div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div> <div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <a class="code" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html">HotPixel</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& pt,</div> <div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordtype">double</span> scaleFact,</div> <div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <a class="code" href="classgeos_1_1algorithm_1_1LineIntersector.html">algorithm::LineIntersector</a>& li);</div> <div class="line"><a name="l00164"></a><span class="lineno"> 164</span> </div> <div class="line"><a name="l00168"></a><span class="lineno"><a class="line" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html#ad07c86000f662071ebc2ace9c43b318e"> 168</a></span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& <a class="code" href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html#ad07c86000f662071ebc2ace9c43b318e">getCoordinate</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> originalPt; }</div> <div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div> <div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Envelope.html">geom::Envelope</a>& getSafeEnvelope() <span class="keyword">const</span>;</div> <div class="line"><a name="l00178"></a><span class="lineno"> 178</span> </div> <div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordtype">bool</span> intersects(<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="l00187"></a><span class="lineno"> 187</span>  <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>& p1) <span class="keyword">const</span>;</div> <div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  </div> <div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordtype">bool</span> addSnappedNode(<a class="code" href="classgeos_1_1noding_1_1NodedSegmentString.html">NodedSegmentString</a>& segStr, std::size_t segIndex);</div> <div class="line"><a name="l00198"></a><span class="lineno"> 198</span> </div> <div class="line"><a name="l00199"></a><span class="lineno"> 199</span> };</div> <div class="line"><a name="l00200"></a><span class="lineno"> 200</span> </div> <div class="line"><a name="l00201"></a><span class="lineno"> 201</span> } <span class="comment">// namespace geos::noding::snapround</span></div> <div class="line"><a name="l00202"></a><span class="lineno"> 202</span> } <span class="comment">// namespace geos::noding</span></div> <div class="line"><a name="l00203"></a><span class="lineno"> 203</span> } <span class="comment">// namespace geos</span></div> <div class="line"><a name="l00204"></a><span class="lineno"> 204</span> </div> <div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="preprocessor">#ifdef _MSC_VER</span></div> <div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="preprocessor"></span><span class="preprocessor">#pragma warning(pop)</span></div> <div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> <div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="preprocessor"></span></div> <div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="preprocessor">#ifdef GEOS_INLINE</span></div> <div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="preprocessor"></span><span class="preprocessor"># include "geos/noding/snapround/HotPixel.inl"</span></div> <div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="preprocessor">#endif</span></div> <div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="preprocessor"></span></div> <div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="preprocessor">#endif // GEOS_NODING_SNAPROUND_HOTPIXEL_H</span></div> <div class="ttc" id="classgeos_1_1geom_1_1Envelope_html"><div class="ttname"><a href="classgeos_1_1geom_1_1Envelope.html">geos::geom::Envelope</a></div><div class="ttdoc">An Envelope defines a rectangulare region of the 2D coordinate plane. </div><div class="ttdef"><b>Definition:</b> Envelope.h:53</div></div> <div class="ttc" id="classgeos_1_1noding_1_1snapround_1_1HotPixel_html"><div class="ttname"><a href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html">geos::noding::snapround::HotPixel</a></div><div class="ttdoc">Implements a &quot;hot pixel&quot; as used in the Snap Rounding algorithm. </div><div class="ttdef"><b>Definition:</b> HotPixel.h:62</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_1snapround_1_1HotPixel_html_ad07c86000f662071ebc2ace9c43b318e"><div class="ttname"><a href="classgeos_1_1noding_1_1snapround_1_1HotPixel.html#ad07c86000f662071ebc2ace9c43b318e">geos::noding::snapround::HotPixel::getCoordinate</a></div><div class="ttdeci">const geom::Coordinate & getCoordinate() const </div><div class="ttdoc">Return reference to original Coordinate (the one provided at construction time) </div><div class="ttdef"><b>Definition:</b> HotPixel.h:168</div></div> <div class="ttc" id="classgeos_1_1noding_1_1NodedSegmentString_html"><div class="ttname"><a href="classgeos_1_1noding_1_1NodedSegmentString.html">geos::noding::NodedSegmentString</a></div><div class="ttdoc">Represents a list of contiguous line segments, and supports noding the segments. </div><div class="ttdef"><b>Definition:</b> NodedSegmentString.h:57</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><!-- fragment --></div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated by  <a 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