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163 lines
8.3 KiB
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<title>GEOS: geos::operation::polygonize::BuildArea Class Reference</title>
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 <span id="projectnumber">3.9.1dev</span>
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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_1operation.html">operation</a></li><li class="navelem"><a class="el" href="namespacegeos_1_1operation_1_1polygonize.html">polygonize</a></li><li class="navelem"><a class="el" href="classgeos_1_1operation_1_1polygonize_1_1BuildArea.html">BuildArea</a></li> </ul>
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<a href="#pub-methods">Public Member Functions</a> |
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<a href="classgeos_1_1operation_1_1polygonize_1_1BuildArea-members.html">List of all members</a> </div>
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<div class="headertitle">
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<div class="title">geos::operation::polygonize::BuildArea Class Reference</div> </div>
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<div class="contents">
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<p>Creates an areal geometry formed by the constituent linework of given geometry.
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<a href="classgeos_1_1operation_1_1polygonize_1_1BuildArea.html#details">More...</a></p>
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<p><code>#include <<a class="el" href="BuildArea_8h_source.html">BuildArea.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:aba3daa4ef6ba19fd8c483b918aaedebb"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1polygonize_1_1BuildArea.html#aba3daa4ef6ba19fd8c483b918aaedebb">BuildArea</a> ()=default</td></tr>
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<tr class="memdesc:aba3daa4ef6ba19fd8c483b918aaedebb"><td class="mdescLeft"> </td><td class="mdescRight">Create a <a class="el" href="classgeos_1_1operation_1_1polygonize_1_1BuildArea.html" title="Creates an areal geometry formed by the constituent linework of given geometry. ">BuildArea</a> object. <a href="#aba3daa4ef6ba19fd8c483b918aaedebb">More...</a><br /></td></tr>
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<tr class="separator:aba3daa4ef6ba19fd8c483b918aaedebb"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a290e98f4a5b8b354806d9fc71e0b66c0"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1polygonize_1_1BuildArea.html#a290e98f4a5b8b354806d9fc71e0b66c0">~BuildArea</a> ()=default</td></tr>
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<tr class="separator:a290e98f4a5b8b354806d9fc71e0b66c0"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ae555b1e1cfccb46170ee3299840a7326"><td class="memItemLeft" align="right" valign="top">std::unique_ptr< <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_1operation_1_1polygonize_1_1BuildArea.html#ae555b1e1cfccb46170ee3299840a7326">build</a> (const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a> *geom)</td></tr>
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<tr class="memdesc:ae555b1e1cfccb46170ee3299840a7326"><td class="mdescLeft"> </td><td class="mdescRight">Return the area built fromthe constituent linework of the input geometry. <a href="#ae555b1e1cfccb46170ee3299840a7326">More...</a><br /></td></tr>
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<tr class="separator:ae555b1e1cfccb46170ee3299840a7326"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>Creates an areal geometry formed by the constituent linework of given geometry. </p>
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<p>The return type can be a Polygon or MultiPolygon, depending on input. If the input lineworks do not form polygons NULL is returned. The inputs can be LINESTRINGS, MULTILINESTRINGS, POLYGONS, MULTIPOLYGONS, and GeometryCollections.</p>
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<p>This algorithm will assume all inner geometries represent holes</p>
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<p>This is the equivalent of the PostGIS ST_BuildArea() function. </p>
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<p>Definition at line <a class="el" href="BuildArea_8h_source.html#l00055">55</a> of file <a class="el" href="BuildArea_8h_source.html">BuildArea.h</a>.</p>
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</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<td class="memname">geos::operation::polygonize::BuildArea::BuildArea </td>
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<td>(</td>
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<td class="paramname"></td><td>)</td>
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<p>Create a <a class="el" href="classgeos_1_1operation_1_1polygonize_1_1BuildArea.html" title="Creates an areal geometry formed by the constituent linework of given geometry. ">BuildArea</a> object. </p>
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<td class="memname">geos::operation::polygonize::BuildArea::~BuildArea </td>
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<td>(</td>
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<td class="paramname"></td><td>)</td>
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<td></td>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">std::unique_ptr<<a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>> geos::operation::polygonize::BuildArea::build </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>geom</em></td><td>)</td>
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<p>Return the area built fromthe constituent linework of the input geometry. </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="BuildArea_8h_source.html">BuildArea.h</a></li>
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