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<h1>PreparedLineStringIntersects.h</h1> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/**********************************************************************</span>
<a name="l00002"></a>00002 <span class="comment"> * $Id: PreparedLineStringIntersects.h 2812 2009-12-08 17:42:59Z strk $</span>
<a name="l00003"></a>00003 <span class="comment"> *</span>
<a name="l00004"></a>00004 <span class="comment"> * GEOS - Geometry Engine Open Source</span>
<a name="l00005"></a>00005 <span class="comment"> * http://geos.refractions.net</span>
<a name="l00006"></a>00006 <span class="comment"> *</span>
<a name="l00007"></a>00007 <span class="comment"> * Copyright (C) 2006 Refractions Research Inc.</span>
<a name="l00008"></a>00008 <span class="comment"> *</span>
<a name="l00009"></a>00009 <span class="comment"> * This is free software; you can redistribute and/or modify it under</span>
<a name="l00010"></a>00010 <span class="comment"> * the terms of the GNU Lesser General Public Licence as published</span>
<a name="l00011"></a>00011 <span class="comment"> * by the Free Software Foundation. </span>
<a name="l00012"></a>00012 <span class="comment"> * See the COPYING file for more information.</span>
<a name="l00013"></a>00013 <span class="comment"> *</span>
<a name="l00014"></a>00014 <span class="comment"> *</span>
<a name="l00015"></a>00015 <span class="comment"> **********************************************************************</span>
<a name="l00016"></a>00016 <span class="comment"> *</span>
<a name="l00017"></a>00017 <span class="comment"> * Last port: geom/prep/PreparedLineStringIntersects.java rev 1.2 (JTS-1.10)</span>
<a name="l00018"></a>00018 <span class="comment"> *</span>
<a name="l00019"></a>00019 <span class="comment"> **********************************************************************/</span>
<a name="l00020"></a>00020
<a name="l00021"></a>00021 <span class="preprocessor">#ifndef GEOS_GEOM_PREP_PREPAREDLINESTRINGINTERSECTS_H</span>
<a name="l00022"></a>00022 <span class="preprocessor"></span><span class="preprocessor">#define GEOS_GEOM_PREP_PREPAREDLINESTRINGINTERSECTS_H</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span>
<a name="l00024"></a>00024 <span class="preprocessor">#include <geos/geom/prep/PreparedLineString.h></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <geos/algorithm/PointLocator.h></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <geos/geom/util/ComponentCoordinateExtracter.h></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include <geos/geom/Coordinate.h></span>
<a name="l00028"></a>00028 <span class="preprocessor">#include <geos/noding/SegmentStringUtil.h></span>
<a name="l00029"></a>00029
<a name="l00030"></a>00030 <span class="keyword">using namespace </span>geos::algorithm;
<a name="l00031"></a>00031 <span class="keyword">using namespace </span>geos::geom::util;
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="keyword">namespace </span>geos {
<a name="l00034"></a>00034 <span class="keyword">namespace </span>geom { <span class="comment">// geos::geom</span>
<a name="l00035"></a>00035 <span class="keyword">namespace </span>prep { <span class="comment">// geos::geom::prep</span>
<a name="l00036"></a>00036
<a name="l00048"></a><a class="code" href="classgeos_1_1geom_1_1prep_1_1PreparedLineStringIntersects.html">00048</a> <span class="keyword">class </span><a class="code" href="classgeos_1_1geom_1_1prep_1_1PreparedLineStringIntersects.html" title="Computes the intersects spatial relationship predicate for a target PreparedLineString relative to al...">PreparedLineStringIntersects</a>
<a name="l00049"></a>00049 {
<a name="l00050"></a>00050 <span class="keyword">public</span>:
<a name="l00051"></a>00051
<a name="l00060"></a><a class="code" href="classgeos_1_1geom_1_1prep_1_1PreparedLineStringIntersects.html#a1c7740b4e55bd0c980455f55add7d732">00060</a> <span class="keyword">static</span> <span class="keywordtype">bool</span> intersects( <a class="code" href="classgeos_1_1geom_1_1prep_1_1PreparedLineString.html" title="A prepared version of LinearRing, LineString or MultiLineString geometries.">PreparedLineString</a> & prep, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a> * geom )
<a name="l00061"></a>00061 {
<a name="l00062"></a>00062 <a class="code" href="classgeos_1_1geom_1_1prep_1_1PreparedLineStringIntersects.html" title="Computes the intersects spatial relationship predicate for a target PreparedLineString relative to al...">PreparedLineStringIntersects</a> op( prep);
<a name="l00063"></a>00063 <span class="keywordflow">return</span> op.<a class="code" href="classgeos_1_1geom_1_1prep_1_1PreparedLineStringIntersects.html#a1c7740b4e55bd0c980455f55add7d732">intersects</a>( geom);
<a name="l00064"></a>00064 }
<a name="l00065"></a>00065
<a name="l00069"></a><a class="code" href="classgeos_1_1geom_1_1prep_1_1PreparedLineStringIntersects.html#a54c25312a16465abd9ee19cdb3471c1a">00069</a> <a class="code" href="classgeos_1_1geom_1_1prep_1_1PreparedLineStringIntersects.html" title="Computes the intersects spatial relationship predicate for a target PreparedLineString relative to al...">PreparedLineStringIntersects</a>(<a class="code" href="classgeos_1_1geom_1_1prep_1_1PreparedLineString.html" title="A prepared version of LinearRing, LineString or MultiLineString geometries.">PreparedLineString</a> & prep)
<a name="l00070"></a>00070 : prepLine( prep)
<a name="l00071"></a>00071 { }
<a name="l00072"></a>00072
<a name="l00079"></a>00079 <span class="keywordtype">bool</span> intersects(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a> * g) <span class="keyword">const</span>;
<a name="l00080"></a>00080
<a name="l00081"></a>00081 <span class="keyword">protected</span>:
<a name="l00082"></a>00082 <a class="code" href="classgeos_1_1geom_1_1prep_1_1PreparedLineString.html" title="A prepared version of LinearRing, LineString or MultiLineString geometries.">PreparedLineString</a> & prepLine;
<a name="l00083"></a>00083 <span class="comment">//PreparedLineString * prepLine;</span>
<a name="l00084"></a>00084
<a name="l00093"></a>00093 <span class="keywordtype">bool</span> isAnyTestPointInTarget(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a> * testGeom) <span class="keyword">const</span>;
<a name="l00094"></a>00094 <span class="comment">//{</span>
<a name="l00095"></a>00095 <span class="comment">// /**</span>
<a name="l00096"></a>00096 <span class="comment">// * This could be optimized by using the segment index on the lineal target.</span>
<a name="l00097"></a>00097 <span class="comment">// * However, it seems like the L/P case would be pretty rare in practice.</span>
<a name="l00098"></a>00098 <span class="comment">// */</span>
<a name="l00099"></a>00099 <span class="comment">// PointLocator * locator = new PointLocator();</span>
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <span class="comment">// geom::Coordinate::ConstVect coords;</span>
<a name="l00102"></a>00102 <span class="comment">// ComponentCoordinateExtracter::getCoordinates( *testGeom, coords);</span>
<a name="l00103"></a>00103
<a name="l00104"></a>00104 <span class="comment">// for (size_t i=0, n=coords.size(); i<n; i++)</span>
<a name="l00105"></a>00105 <span class="comment">// {</span>
<a name="l00106"></a>00106 <span class="comment">// geom::Coordinate c = *(coords[i]);</span>
<a name="l00107"></a>00107 <span class="comment">// if ( locator->intersects( c, &(prepLine->getGeometry()) ))</span>
<a name="l00108"></a>00108 <span class="comment">// return true;</span>
<a name="l00109"></a>00109 <span class="comment">// }</span>
<a name="l00110"></a>00110 <span class="comment">// return false;</span>
<a name="l00111"></a>00111 <span class="comment">//}</span>
<a name="l00112"></a>00112
<a name="l00113"></a>00113 <span class="comment">// Declare type as noncopyable</span>
<a name="l00114"></a>00114 <a class="code" href="classgeos_1_1geom_1_1prep_1_1PreparedLineStringIntersects.html" title="Computes the intersects spatial relationship predicate for a target PreparedLineString relative to al...">PreparedLineStringIntersects</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1prep_1_1PreparedLineStringIntersects.html" title="Computes the intersects spatial relationship predicate for a target PreparedLineString relative to al...">PreparedLineStringIntersects</a>& other);
<a name="l00115"></a>00115 <a class="code" href="classgeos_1_1geom_1_1prep_1_1PreparedLineStringIntersects.html" title="Computes the intersects spatial relationship predicate for a target PreparedLineString relative to al...">PreparedLineStringIntersects</a>& operator=(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1prep_1_1PreparedLineStringIntersects.html" title="Computes the intersects spatial relationship predicate for a target PreparedLineString relative to al...">PreparedLineStringIntersects</a>& rhs);
<a name="l00116"></a>00116 };
<a name="l00117"></a>00117
<a name="l00118"></a>00118 } <span class="comment">// namespace geos::geom::prep</span>
<a name="l00119"></a>00119 } <span class="comment">// namespace geos::geom</span>
<a name="l00120"></a>00120 } <span class="comment">// namespace geos</span>
<a name="l00121"></a>00121
<a name="l00122"></a>00122 <span class="preprocessor">#endif // GEOS_GEOM_PREP_PREPAREDLINESTRINGINTERSECTS_H</span>
<a name="l00123"></a>00123 <span class="preprocessor"></span><span class="comment">/**********************************************************************</span>
<a name="l00124"></a>00124 <span class="comment"> * $Log$</span>
<a name="l00125"></a>00125 <span class="comment"> **********************************************************************/</span>
<a name="l00126"></a>00126
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