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381 lines
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<li class="navelem"><a class="el" href="namespacegeos.html">geos</a></li><li class="navelem"><a class="el" href="namespacegeos_1_1algorithm.html">algorithm</a></li><li class="navelem"><a class="el" href="namespacegeos_1_1algorithm_1_1locate.html">locate</a></li><li class="navelem"><a class="el" href="classgeos_1_1algorithm_1_1locate_1_1SimplePointInAreaLocator.html">SimplePointInAreaLocator</a></li> </ul>
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<div class="title">geos::algorithm::locate::SimplePointInAreaLocator Class Reference</div> </div>
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<p>Computes the location of points relative to a polygonal <a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a>, using a simple <code>O(n)</code> algorithm.
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<a href="classgeos_1_1algorithm_1_1locate_1_1SimplePointInAreaLocator.html#details">More...</a></p>
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<p><code>#include <<a class="el" href="SimplePointInAreaLocator_8h_source.html">SimplePointInAreaLocator.h</a>></code></p>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
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Public Member Functions</h2></td></tr>
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<tr class="memitem:aae56452c8ecd4f5d1264102d9f2282d0"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1algorithm_1_1locate_1_1SimplePointInAreaLocator.html#aae56452c8ecd4f5d1264102d9f2282d0">SimplePointInAreaLocator</a> (const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a> *p_g)</td></tr>
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<tr class="separator:aae56452c8ecd4f5d1264102d9f2282d0"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a1b80826dc303fd2e27db59339b25f11b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="namespacegeos_1_1geom.html#ae55a225cd843a6b153a7b6ca5a4707c8">geom::Location</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1algorithm_1_1locate_1_1SimplePointInAreaLocator.html#a1b80826dc303fd2e27db59339b25f11b">locate</a> (const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> *p) override</td></tr>
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<tr class="separator:a1b80826dc303fd2e27db59339b25f11b"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="inherit_header pub_methods_classgeos_1_1algorithm_1_1locate_1_1PointOnGeometryLocator"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classgeos_1_1algorithm_1_1locate_1_1PointOnGeometryLocator')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="classgeos_1_1algorithm_1_1locate_1_1PointOnGeometryLocator.html">geos::algorithm::locate::PointOnGeometryLocator</a></td></tr>
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<tr class="memitem:a42638ca7c44b96590848fd726941d800 inherit pub_methods_classgeos_1_1algorithm_1_1locate_1_1PointOnGeometryLocator"><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1algorithm_1_1locate_1_1PointOnGeometryLocator.html#a42638ca7c44b96590848fd726941d800">~PointOnGeometryLocator</a> ()</td></tr>
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<tr class="separator:a42638ca7c44b96590848fd726941d800 inherit pub_methods_classgeos_1_1algorithm_1_1locate_1_1PointOnGeometryLocator"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
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Static Public Member Functions</h2></td></tr>
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<tr class="memitem:a7b8d66c67c74550c0d49edab6ea3a954"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="namespacegeos_1_1geom.html#ae55a225cd843a6b153a7b6ca5a4707c8">geom::Location</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1algorithm_1_1locate_1_1SimplePointInAreaLocator.html#a7b8d66c67c74550c0d49edab6ea3a954">locate</a> (const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> &p, const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a> *geom)</td></tr>
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<tr class="separator:a7b8d66c67c74550c0d49edab6ea3a954"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a800f2b81da5d3b5955893210e54c8889"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="namespacegeos_1_1geom.html#ae55a225cd843a6b153a7b6ca5a4707c8">geom::Location</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1algorithm_1_1locate_1_1SimplePointInAreaLocator.html#a800f2b81da5d3b5955893210e54c8889">locatePointInPolygon</a> (const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> &p, const <a class="el" href="classgeos_1_1geom_1_1Polygon.html">geom::Polygon</a> *poly)</td></tr>
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<tr class="memdesc:a800f2b81da5d3b5955893210e54c8889"><td class="mdescLeft"> </td><td class="mdescRight">Determines the Location of a point in a <a class="el" href="classgeos_1_1geom_1_1Polygon.html">Polygon</a>. <a href="#a800f2b81da5d3b5955893210e54c8889">More...</a><br /></td></tr>
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<tr class="memitem:adde257165e9463dd80362c213490cd6b"><td class="memItemLeft" align="right" valign="top">static bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1algorithm_1_1locate_1_1SimplePointInAreaLocator.html#adde257165e9463dd80362c213490cd6b">isContained</a> (const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> &p, const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a> *geom)</td></tr>
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<tr class="memdesc:adde257165e9463dd80362c213490cd6b"><td class="mdescLeft"> </td><td class="mdescRight">Determines whether a point is contained in a <a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a>, or lies on its boundary. <a href="#adde257165e9463dd80362c213490cd6b">More...</a><br /></td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pri-static-methods"></a>
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Static Private Member Functions</h2></td></tr>
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<tr class="memitem:aa9557b6e2d38b73843567e1f4b17a94d"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="namespacegeos_1_1geom.html#ae55a225cd843a6b153a7b6ca5a4707c8">geom::Location</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1algorithm_1_1locate_1_1SimplePointInAreaLocator.html#aa9557b6e2d38b73843567e1f4b17a94d">locateInGeometry</a> (const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> &p, const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a> *geom)</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pri-attribs"></a>
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Private Attributes</h2></td></tr>
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<tr class="memitem:a0bb881bd007661d365616f053eb1d85a"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1algorithm_1_1locate_1_1SimplePointInAreaLocator.html#a0bb881bd007661d365616f053eb1d85a">g</a></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>Computes the location of points relative to a polygonal <a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a>, using a simple <code>O(n)</code> algorithm. </p>
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<p>The algorithm used reports if a point lies in the interior, exterior, or exactly on the boundary of the Geometry.</p>
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<p>Instance methods are provided to implement the interface <code>PointInAreaLocator</code>. However, they provide no performance advantage over the class methods.</p>
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<p>This algorithm is suitable for use in cases where only a few points will be tested. If many points will be tested, <a class="el" href="classgeos_1_1algorithm_1_1locate_1_1IndexedPointInAreaLocator.html" title="Determines the location of Coordinates relative to an areal geometry, using indexing for efficiency...">IndexedPointInAreaLocator</a> may provide better performance. </p>
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<p>Definition at line <a class="el" href="SimplePointInAreaLocator_8h_source.html#l00047">47</a> of file <a class="el" href="SimplePointInAreaLocator_8h_source.html">SimplePointInAreaLocator.h</a>.</p>
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</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<td class="memname">geos::algorithm::locate::SimplePointInAreaLocator::SimplePointInAreaLocator </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a> * </td>
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<td class="paramname"><em>p_g</em></td><td>)</td>
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<p>Definition at line <a class="el" href="SimplePointInAreaLocator_8h_source.html#l00091">91</a> of file <a class="el" href="SimplePointInAreaLocator_8h_source.html">SimplePointInAreaLocator.h</a>.</p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">static bool geos::algorithm::locate::SimplePointInAreaLocator::isContained </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> & </td>
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<td class="paramname"><em>p</em>, </td>
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<td class="paramtype">const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a> * </td>
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<p>Determines whether a point is contained in a <a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a>, or lies on its boundary. </p>
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<p>This is a convenience method for </p><pre class="fragment"> Location::EXTERIOR != locate(p, geom)
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</pre><dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">p</td><td>the point to test </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>true if the point lies in or on the geometry </dd></dl>
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<td class="memname">static <a class="el" href="namespacegeos_1_1geom.html#ae55a225cd843a6b153a7b6ca5a4707c8">geom::Location</a> geos::algorithm::locate::SimplePointInAreaLocator::locate </td>
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<td>(</td>
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<td>)</td>
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<td class="memname"><a class="el" href="namespacegeos_1_1geom.html#ae55a225cd843a6b153a7b6ca5a4707c8">geom::Location</a> geos::algorithm::locate::SimplePointInAreaLocator::locate </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> * </td>
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<p>Determines the <a class="el" href="namespacegeos_1_1geom.html#ae55a225cd843a6b153a7b6ca5a4707c8">Location</a> of a point in an areal <a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a>.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">p</td><td>the point to test </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>the location of the point in the geometry </dd></dl>
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<p>Implements <a class="el" href="classgeos_1_1algorithm_1_1locate_1_1PointOnGeometryLocator.html#a087b89fa4cd7ece8b07c8a8915523ca9">geos::algorithm::locate::PointOnGeometryLocator</a>.</p>
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<p>Definition at line <a class="el" href="SimplePointInAreaLocator_8h_source.html#l00096">96</a> of file <a class="el" href="SimplePointInAreaLocator_8h_source.html">SimplePointInAreaLocator.h</a>.</p>
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<td class="memname">static <a class="el" href="namespacegeos_1_1geom.html#ae55a225cd843a6b153a7b6ca5a4707c8">geom::Location</a> geos::algorithm::locate::SimplePointInAreaLocator::locateInGeometry </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> & </td>
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<td class="paramtype">const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a> * </td>
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<td class="paramname"><em>geom</em> </td>
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<td>)</td>
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<td class="memname">static <a class="el" href="namespacegeos_1_1geom.html#ae55a225cd843a6b153a7b6ca5a4707c8">geom::Location</a> geos::algorithm::locate::SimplePointInAreaLocator::locatePointInPolygon </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> & </td>
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<td class="paramtype">const <a class="el" href="classgeos_1_1geom_1_1Polygon.html">geom::Polygon</a> * </td>
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<p>Determines the Location of a point in a <a class="el" href="classgeos_1_1geom_1_1Polygon.html">Polygon</a>. </p>
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<p>The return value is one of:</p>
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<li><a class="el" href="namespacegeos_1_1geom.html#ae55a225cd843a6b153a7b6ca5a4707c8aff6036f8ea763cda3177ef14f633e396">geom::Location::INTERIOR</a> if the point is in the geometry interior</li>
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<li><a class="el" href="namespacegeos_1_1geom.html#ae55a225cd843a6b153a7b6ca5a4707c8aa52f733b0e51d9a568fababbc8d3a518">geom::Location::BOUNDARY</a> if the point lies exactly on the boundary</li>
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<li><a class="el" href="namespacegeos_1_1geom.html#ae55a225cd843a6b153a7b6ca5a4707c8a275ff52c0d43ea11e057b037be21d30e">geom::Location::EXTERIOR</a> if the point is outside the geometry</li>
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<p>Computes <code><a class="el" href="namespacegeos_1_1geom.html#ae55a225cd843a6b153a7b6ca5a4707c8aa52f733b0e51d9a568fababbc8d3a518">geom::Location::BOUNDARY</a></code> if the point lies exactly on the polygon boundary.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">p</td><td>the point to test </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>the Location of the point in the polygon </dd></dl>
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<h2 class="groupheader">Member Data Documentation</h2>
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<td class="memname">const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* geos::algorithm::locate::SimplePointInAreaLocator::g</td>
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<p>Definition at line <a class="el" href="SimplePointInAreaLocator_8h_source.html#l00106">106</a> of file <a class="el" href="SimplePointInAreaLocator_8h_source.html">SimplePointInAreaLocator.h</a>.</p>
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<hr/>The documentation for this class was generated from the following file:<ul>
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<li><a class="el" href="SimplePointInAreaLocator_8h_source.html">SimplePointInAreaLocator.h</a></li>
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