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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_0bc14b2fb119a11b6a0f32f4d350db61.html">geos</a></li><li class="navelem"><a class="el" href="dir_4d687f0db8fdbb16aacb13de07d89a60.html">simplify</a></li> </ul>
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<div class="title">DouglasPeuckerLineSimplifier.h</div> </div>
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<a href="DouglasPeuckerLineSimplifier_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) 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 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: simplify/DouglasPeuckerLineSimplifier.java rev. 1.4</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_SIMPLIFY_DOUBGLASPEUCKERLINESIMPLIFIER_H</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#define GEOS_SIMPLIFY_DOUBGLASPEUCKERLINESIMPLIFIER_H</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <<a class="code" href="export_8h.html">geos/export.h</a>></span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <vector></span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <memory></span> <span class="comment">// for unique_ptr</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">#ifdef _MSC_VER</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#pragma warning(push)</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</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="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#endif</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="keyword">namespace </span><a class="code" href="namespacegeos.html">geos</a> {</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">namespace </span>geom {</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">class </span>Coordinate;</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> <span class="keyword">namespace </span><a class="code" href="namespacegeos.html">geos</a> {</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="keyword">namespace </span>simplify { <span class="comment">// geos::simplify</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div><div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html"> 45</a></span> <span class="keyword">class </span><a class="code" href="export_8h.html#ae36df939090171f6e9a28a8cb6254fea">GEOS_DLL</a> <a class="code" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html">DouglasPeuckerLineSimplifier</a> {</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">public</span>:</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div><div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html#ab9953bd464fb44c20e6717f1218c0bb6"> 49</a></span>  <span class="keyword">typedef</span> std::vector<short int> <a class="code" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html#ab9953bd464fb44c20e6717f1218c0bb6">BoolVect</a>;</div><div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html#aa42868f76d813e17e9fbbc7312695424"> 50</a></span>  <span class="keyword">typedef</span> std::unique_ptr<BoolVect> <a class="code" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html#aa42868f76d813e17e9fbbc7312695424">BoolVectAutoPtr</a>;</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div><div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html#a0fd791bd65aa85331ab15ad8f7e6141f"> 52</a></span>  <span class="keyword">typedef</span> std::vector<geom::Coordinate> <a class="code" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html#a0fd791bd65aa85331ab15ad8f7e6141f">CoordsVect</a>;</div><div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html#ae9256e03175fa5df9ce2001cc3c646c0"> 53</a></span>  <span class="keyword">typedef</span> std::unique_ptr<CoordsVect> <a class="code" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html#ae9256e03175fa5df9ce2001cc3c646c0">CoordsVectAutoPtr</a>;</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> </div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">static</span> CoordsVectAutoPtr simplify(</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keyword">const</span> CoordsVect& nPts,</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordtype">double</span> distanceTolerance);</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>  <a class="code" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html">DouglasPeuckerLineSimplifier</a>(<span class="keyword">const</span> CoordsVect& nPts);</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordtype">void</span> setDistanceTolerance(<span class="keywordtype">double</span> nDistanceTolerance);</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  CoordsVectAutoPtr simplify();</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="keyword">private</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"><a class="line" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html#ab2f8eff8596d80924dd9d556f7118da3"> 84</a></span>  <span class="keyword">const</span> CoordsVect& <a class="code" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html#ab2f8eff8596d80924dd9d556f7118da3">pts</a>;</div><div class="line"><a name="l00085"></a><span class="lineno"><a class="line" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html#a85389f5258fc05b462393428a1662872"> 85</a></span>  BoolVectAutoPtr <a class="code" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html#a85389f5258fc05b462393428a1662872">usePt</a>;</div><div class="line"><a name="l00086"></a><span class="lineno"><a class="line" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html#a816f35ed321b645c9d5e58123f7c2322"> 86</a></span>  <span class="keywordtype">double</span> <a class="code" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html#a816f35ed321b645c9d5e58123f7c2322">distanceTolerance</a>;</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>  <span class="keywordtype">void</span> simplifySection(std::size_t i, std::size_t j);</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> </div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="comment">// Declare type as noncopyable</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <a class="code" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html">DouglasPeuckerLineSimplifier</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html">DouglasPeuckerLineSimplifier</a>& other) = <span class="keyword">delete</span>;</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <a class="code" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html">DouglasPeuckerLineSimplifier</a>& operator=(<span class="keyword">const</span> <a class="code" href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html">DouglasPeuckerLineSimplifier</a>& rhs) = <span class="keyword">delete</span>;</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> </div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> } <span class="comment">// namespace geos::simplify</span></div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> } <span class="comment">// namespace geos</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="preprocessor">#ifdef _MSC_VER</span></div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="preprocessor">#pragma warning(pop)</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="preprocessor">#endif // GEOS_SIMPLIFY_DOUBGLASPEUCKERLINESIMPLIFIER_H</span></div><div class="ttc" id="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier_html"><div class="ttname"><a href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html">geos::simplify::DouglasPeuckerLineSimplifier</a></div><div class="ttdoc">Simplifies a linestring (sequence of points) using the standard Douglas-Peucker algorithm. </div><div class="ttdef"><b>Definition:</b> <a href="DouglasPeuckerLineSimplifier_8h_source.html#l00045">DouglasPeuckerLineSimplifier.h:45</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="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_1simplify_1_1DouglasPeuckerLineSimplifier_html_aa42868f76d813e17e9fbbc7312695424"><div class="ttname"><a href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html#aa42868f76d813e17e9fbbc7312695424">geos::simplify::DouglasPeuckerLineSimplifier::BoolVectAutoPtr</a></div><div class="ttdeci">std::unique_ptr< BoolVect > BoolVectAutoPtr</div><div class="ttdef"><b>Definition:</b> <a href="DouglasPeuckerLineSimplifier_8h_source.html#l00050">DouglasPeuckerLineSimplifier.h:50</a></div></div>
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<div class="ttc" id="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier_html_ab9953bd464fb44c20e6717f1218c0bb6"><div class="ttname"><a href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html#ab9953bd464fb44c20e6717f1218c0bb6">geos::simplify::DouglasPeuckerLineSimplifier::BoolVect</a></div><div class="ttdeci">std::vector< short int > BoolVect</div><div class="ttdef"><b>Definition:</b> <a href="DouglasPeuckerLineSimplifier_8h_source.html#l00049">DouglasPeuckerLineSimplifier.h:49</a></div></div>
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<div class="ttc" id="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier_html_ab2f8eff8596d80924dd9d556f7118da3"><div class="ttname"><a href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html#ab2f8eff8596d80924dd9d556f7118da3">geos::simplify::DouglasPeuckerLineSimplifier::pts</a></div><div class="ttdeci">const CoordsVect & pts</div><div class="ttdef"><b>Definition:</b> <a href="DouglasPeuckerLineSimplifier_8h_source.html#l00084">DouglasPeuckerLineSimplifier.h:84</a></div></div>
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<div class="ttc" id="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier_html_ae9256e03175fa5df9ce2001cc3c646c0"><div class="ttname"><a href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html#ae9256e03175fa5df9ce2001cc3c646c0">geos::simplify::DouglasPeuckerLineSimplifier::CoordsVectAutoPtr</a></div><div class="ttdeci">std::unique_ptr< CoordsVect > CoordsVectAutoPtr</div><div class="ttdef"><b>Definition:</b> <a href="DouglasPeuckerLineSimplifier_8h_source.html#l00053">DouglasPeuckerLineSimplifier.h:53</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_1simplify_1_1DouglasPeuckerLineSimplifier_html_a85389f5258fc05b462393428a1662872"><div class="ttname"><a href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html#a85389f5258fc05b462393428a1662872">geos::simplify::DouglasPeuckerLineSimplifier::usePt</a></div><div class="ttdeci">BoolVectAutoPtr usePt</div><div class="ttdef"><b>Definition:</b> <a href="DouglasPeuckerLineSimplifier_8h_source.html#l00085">DouglasPeuckerLineSimplifier.h:85</a></div></div>
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<div class="ttc" id="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier_html_a0fd791bd65aa85331ab15ad8f7e6141f"><div class="ttname"><a href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html#a0fd791bd65aa85331ab15ad8f7e6141f">geos::simplify::DouglasPeuckerLineSimplifier::CoordsVect</a></div><div class="ttdeci">std::vector< geom::Coordinate > CoordsVect</div><div class="ttdef"><b>Definition:</b> <a href="DouglasPeuckerLineSimplifier_8h_source.html#l00052">DouglasPeuckerLineSimplifier.h:52</a></div></div>
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<div class="ttc" id="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier_html_a816f35ed321b645c9d5e58123f7c2322"><div class="ttname"><a href="classgeos_1_1simplify_1_1DouglasPeuckerLineSimplifier.html#a816f35ed321b645c9d5e58123f7c2322">geos::simplify::DouglasPeuckerLineSimplifier::distanceTolerance</a></div><div class="ttdeci">double distanceTolerance</div><div class="ttdef"><b>Definition:</b> <a href="DouglasPeuckerLineSimplifier_8h_source.html#l00086">DouglasPeuckerLineSimplifier.h:86</a></div></div>
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