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<title>GEOS: geos::operation::linemerge::LineMerger Class Reference</title>
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<li><a class="el" href="namespacegeos_1_1operation.html">operation</a> </li>
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<li><a class="el" href="classgeos_1_1operation_1_1linemerge_1_1LineMerger.html">geos::operation::linemerge::LineMerger</a> </li>
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<h1>geos::operation::linemerge::LineMerger Class Reference</h1> </div>
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<p>Sews together a set of fully noded LineStrings.
<a href="#_details">More...</a></p>
<p><code>#include <<a class="el" href="LineMerger_8h_source.html">LineMerger.h</a>></code></p>
<p><a href="classgeos_1_1operation_1_1linemerge_1_1LineMerger-members.html">List of all members.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1linemerge_1_1LineMerger.html#a133367982309eedd7db5189decebce82">add</a> (std::vector< <a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a> * > *geometries)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Adds a collection of Geometries to be processed. May be called multiple times. <a href="#a133367982309eedd7db5189decebce82"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1linemerge_1_1LineMerger.html#aee0b2093559603c50e2870499b2518c1">add</a> (const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a> *geometry)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Adds a Geometry to be processed. May be called multiple times. <a href="#aee0b2093559603c50e2870499b2518c1"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="afb7ebccffa1bb8beb67e1157f05663aa"></a><!-- doxytag: member="geos::operation::linemerge::LineMerger::getMergedLineStrings" ref="afb7ebccffa1bb8beb67e1157f05663aa" args="()" -->
std::vector< <a class="el" href="classgeos_1_1geom_1_1LineString.html">geom::LineString</a> * > * </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1linemerge_1_1LineMerger.html#afb7ebccffa1bb8beb67e1157f05663aa">getMergedLineStrings</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the LineStrings built by the merging process. Ownership of vector _and_ its elements to caller. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a91f6969326f2e584de43251c04e76d5f"></a><!-- doxytag: member="geos::operation::linemerge::LineMerger::add" ref="a91f6969326f2e584de43251c04e76d5f" args="(const geom::LineString *lineString)" -->
void </td><td class="memItemRight" valign="bottom"><b>add</b> (const <a class="el" href="classgeos_1_1geom_1_1LineString.html">geom::LineString</a> *lineString)</td></tr>
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<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>Sews together a set of fully noded LineStrings. </p>
<p>Sewing stops at nodes of degree 1 or 3 or more. The exception is an isolated loop, which only has degree-2 nodes, in which case a node is simply chosen as a starting point. The direction of each merged LineString will be that of the majority of the LineStrings from which it was derived.</p>
<p>Any dimension of Geometry is handled. The constituent linework is extracted to form the edges. The edges must be correctly noded; that is, they must only meet at their endpoints.</p>
<p>The <a class="el" href="classgeos_1_1operation_1_1linemerge_1_1LineMerger.html" title="Sews together a set of fully noded LineStrings.">LineMerger</a> will still run on incorrectly noded input but will not form polygons from incorrected noded edges. </p>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a133367982309eedd7db5189decebce82"></a><!-- doxytag: member="geos::operation::linemerge::LineMerger::add" ref="a133367982309eedd7db5189decebce82" args="(std::vector< geom::Geometry * > *geometries)" -->
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<td class="memname">void geos::operation::linemerge::LineMerger::add </td>
<td>(</td>
<td class="paramtype">std::vector< <a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a> * > * </td>
<td class="paramname"> <em>geometries</em></td>
<td> ) </td>
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<p>Adds a collection of Geometries to be processed. May be called multiple times. </p>
<p>Any dimension of Geometry may be added; the constituent linework will be extracted. </p>
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<a class="anchor" id="aee0b2093559603c50e2870499b2518c1"></a><!-- doxytag: member="geos::operation::linemerge::LineMerger::add" ref="aee0b2093559603c50e2870499b2518c1" args="(const geom::Geometry *geometry)" -->
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<td class="memname">void geos::operation::linemerge::LineMerger::add </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a> * </td>
<td class="paramname"> <em>geometry</em></td>
<td> ) </td>
<td></td>
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<div class="memdoc">
<p>Adds a Geometry to be processed. May be called multiple times. </p>
<p>Any dimension of Geometry may be added; the constituent linework will be extracted. </p>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="LineMerger_8h_source.html">LineMerger.h</a></li>
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