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<title>GEOS: geos::geom::GeometryComponentFilter Class Reference</title>
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<h1>geos::geom::GeometryComponentFilter Class Reference</h1> </div>
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<p><code>#include <<a class="el" href="GeometryComponentFilter_8h_source.html">GeometryComponentFilter.h</a>></code></p>
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Inheritance diagram for geos::geom::GeometryComponentFilter:</div>
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<img src="classgeos_1_1geom_1_1GeometryComponentFilter.png" usemap="#geos::geom::GeometryComponentFilter_map" alt=""/>
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<area href="classgeos_1_1geom_1_1util_1_1ComponentCoordinateExtracter.html" alt="geos::geom::util::ComponentCoordinateExtracter" shape="rect" coords="0,56,279,80"/>
<area href="classgeos_1_1geom_1_1util_1_1LinearComponentExtracter.html" alt="geos::geom::util::LinearComponentExtracter" shape="rect" coords="289,56,568,80"/>
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<p><a href="classgeos_1_1geom_1_1GeometryComponentFilter-members.html">List of all members.</a></p>
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Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geom_1_1GeometryComponentFilter.html#a7d097e27a5101d5335a25e1cd03a8296">filter_rw</a> (<a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a> *geom)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a34e54219dad07c95f7fe629d0cf6fa71"></a><!-- doxytag: member="geos::geom::GeometryComponentFilter::filter_ro" ref="a34e54219dad07c95f7fe629d0cf6fa71" args="(const Geometry *geom)" -->
virtual void </td><td class="memItemRight" valign="bottom"><b>filter_ro</b> (const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a> *geom)</td></tr>
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<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p><code><a class="el" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">Geometry</a></code> classes support the concept of applying a <code><a class="el" href="classgeos_1_1geom_1_1GeometryComponentFilter.html">GeometryComponentFilter</a></code> filter to the <code><a class="el" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">Geometry</a></code>. The filter is applied to every component of the <code><a class="el" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">Geometry</a></code> which is itself a <code><a class="el" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">Geometry</a></code>. A <code><a class="el" href="classgeos_1_1geom_1_1GeometryComponentFilter.html">GeometryComponentFilter</a></code> filter can either record information about the <code><a class="el" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">Geometry</a></code> or change the <code><a class="el" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">Geometry</a></code> in some way. <code><a class="el" href="classgeos_1_1geom_1_1GeometryComponentFilter.html">GeometryComponentFilter</a></code> is an example of the Gang-of-Four Visitor pattern. </p>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a7d097e27a5101d5335a25e1cd03a8296"></a><!-- doxytag: member="geos::geom::GeometryComponentFilter::filter_rw" ref="a7d097e27a5101d5335a25e1cd03a8296" args="(Geometry *geom)" -->
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<td class="memname">virtual void geos::geom::GeometryComponentFilter::filter_rw </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a> * </td>
<td class="paramname"> <em>geom</em></td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>Performs an operation with or on <code>geom</code>.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>geom</em> </td><td>a <code><a class="el" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">Geometry</a></code> to which the filter is applied. </td></tr>
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<p>Reimplemented in <a class="el" href="classgeos_1_1geom_1_1util_1_1ComponentCoordinateExtracter.html#a56aaab811309b663e9afffdebaec1aaa">geos::geom::util::ComponentCoordinateExtracter</a>, and <a class="el" href="classgeos_1_1geom_1_1util_1_1LinearComponentExtracter.html#ace7c1c443546b4198b162792c0fd0711">geos::geom::util::LinearComponentExtracter</a>.</p>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="GeometryComponentFilter_8h_source.html">GeometryComponentFilter.h</a></li>
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