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766 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_1geom.html">geom</a></li><li class="navelem"><a class="el" href="namespacegeos_1_1geom_1_1util.html">util</a></li><li class="navelem"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html">GeometryTransformer</a></li> </ul>
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<div class="title">geos::geom::util::GeometryTransformer Class Reference</div> </div>
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<p>A framework for processes which transform an input <a class="el" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory. ">Geometry</a> into an output <a class="el" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory. ">Geometry</a>, possibly changing its structure and type(s).
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<a href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#details">More...</a></p>
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<p><code>#include <<a class="el" href="GeometryTransformer_8h_source.html">GeometryTransformer.h</a>></code></p>
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Inheritance diagram for geos::geom::util::GeometryTransformer:</div>
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Collaboration diagram for geos::geom::util::GeometryTransformer:</div>
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<div class="center"><div class="zoom"><iframe scrolling="no" frameborder="0" src="classgeos_1_1geom_1_1util_1_1GeometryTransformer__coll__graph.svg" width="100%" height="436"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe></div>
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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:a068a30d4bfec9e1cb612126378945573"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#a068a30d4bfec9e1cb612126378945573">GeometryTransformer</a> ()</td></tr>
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<tr class="separator:a068a30d4bfec9e1cb612126378945573"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ab46bac65f7658c6f35024a36f73e87ce"><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#ab46bac65f7658c6f35024a36f73e87ce">~GeometryTransformer</a> ()=default</td></tr>
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<tr class="separator:ab46bac65f7658c6f35024a36f73e87ce"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a8b8568148ed1dde8d90633b78528545e"><td class="memItemLeft" align="right" valign="top">std::unique_ptr< <a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#a8b8568148ed1dde8d90633b78528545e">transform</a> (const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a> *nInputGeom)</td></tr>
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<tr class="memitem:ada2f375416a5281601da809b9fb471df"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#ada2f375416a5281601da809b9fb471df">setSkipTransformedInvalidInteriorRings</a> (bool b)</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="pro-methods"></a>
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Protected Member Functions</h2></td></tr>
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<tr class="memitem:a964e87b4694f7c6273ee0fbf627adf6a"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classgeos_1_1geom_1_1CoordinateSequence.html#aca329cbbec92629bbc708360109949e1">CoordinateSequence::Ptr</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#a964e87b4694f7c6273ee0fbf627adf6a">createCoordinateSequence</a> (std::unique_ptr< std::vector< <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">Coordinate</a> > > coords)</td></tr>
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<tr class="memdesc:a964e87b4694f7c6273ee0fbf627adf6a"><td class="mdescLeft"> </td><td class="mdescRight">Convenience method which provides standard way of creating a <a class="el" href="classgeos_1_1geom_1_1CoordinateSequence.html" title="The internal representation of a list of coordinates inside a Geometry. ">CoordinateSequence</a>. <a href="#a964e87b4694f7c6273ee0fbf627adf6a">More...</a><br /></td></tr>
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<tr class="memitem:a4dcbbefc24b49ebe21d0e2e7f9fc64bc"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classgeos_1_1geom_1_1CoordinateSequence.html#aca329cbbec92629bbc708360109949e1">CoordinateSequence::Ptr</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#a4dcbbefc24b49ebe21d0e2e7f9fc64bc">transformCoordinates</a> (const <a class="el" href="classgeos_1_1geom_1_1CoordinateSequence.html">CoordinateSequence</a> *coords, const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a> *parent)</td></tr>
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<tr class="memitem:a4922db44c5613a41d492f918f2b54596"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classgeos_1_1geom_1_1Geometry.html#a57c6acd6bb0a8371356897f40247ed33">Geometry::Ptr</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#a4922db44c5613a41d492f918f2b54596">transformPoint</a> (const <a class="el" href="classgeos_1_1geom_1_1Point.html">Point</a> *geom, const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a> *parent)</td></tr>
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<tr class="memitem:a2a9ec892e6bbac4e10818e8ee392a0b8"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classgeos_1_1geom_1_1Geometry.html#a57c6acd6bb0a8371356897f40247ed33">Geometry::Ptr</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#a2a9ec892e6bbac4e10818e8ee392a0b8">transformMultiPoint</a> (const <a class="el" href="classgeos_1_1geom_1_1MultiPoint.html">MultiPoint</a> *geom, const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a> *parent)</td></tr>
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<tr class="memitem:a5f894b2e2168ba3e757f385156cce560"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classgeos_1_1geom_1_1Geometry.html#a57c6acd6bb0a8371356897f40247ed33">Geometry::Ptr</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#a5f894b2e2168ba3e757f385156cce560">transformLinearRing</a> (const <a class="el" href="classgeos_1_1geom_1_1LinearRing.html">LinearRing</a> *geom, const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a> *parent)</td></tr>
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<tr class="memitem:aacbcaf1052c48af214fa92bf023f9a5c"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classgeos_1_1geom_1_1Geometry.html#a57c6acd6bb0a8371356897f40247ed33">Geometry::Ptr</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#aacbcaf1052c48af214fa92bf023f9a5c">transformLineString</a> (const <a class="el" href="classgeos_1_1geom_1_1LineString.html">LineString</a> *geom, const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a> *parent)</td></tr>
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<tr class="memitem:af044753e836c6e3606a3e08da95abd14"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classgeos_1_1geom_1_1Geometry.html#a57c6acd6bb0a8371356897f40247ed33">Geometry::Ptr</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#af044753e836c6e3606a3e08da95abd14">transformMultiLineString</a> (const <a class="el" href="classgeos_1_1geom_1_1MultiLineString.html">MultiLineString</a> *geom, const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a> *parent)</td></tr>
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<tr class="memitem:a7a441054de8c2ea034fbecb838608b4f"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classgeos_1_1geom_1_1Geometry.html#a57c6acd6bb0a8371356897f40247ed33">Geometry::Ptr</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#a7a441054de8c2ea034fbecb838608b4f">transformPolygon</a> (const <a class="el" href="classgeos_1_1geom_1_1Polygon.html">Polygon</a> *geom, const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a> *parent)</td></tr>
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<tr class="memitem:aadf6299c96c889d88d1fff9a4cfa50bb"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classgeos_1_1geom_1_1Geometry.html#a57c6acd6bb0a8371356897f40247ed33">Geometry::Ptr</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#aadf6299c96c889d88d1fff9a4cfa50bb">transformMultiPolygon</a> (const <a class="el" href="classgeos_1_1geom_1_1MultiPolygon.html">MultiPolygon</a> *geom, const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a> *parent)</td></tr>
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<tr class="memitem:a69abd780faf935dcf6a351c51e2d170c"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classgeos_1_1geom_1_1Geometry.html#a57c6acd6bb0a8371356897f40247ed33">Geometry::Ptr</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#a69abd780faf935dcf6a351c51e2d170c">transformGeometryCollection</a> (const <a class="el" href="classgeos_1_1geom_1_1GeometryCollection.html">GeometryCollection</a> *geom, const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a> *parent)</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-attribs"></a>
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Protected Attributes</h2></td></tr>
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<tr class="memitem:a98686e191020238127d76c044ad97617"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="classgeos_1_1geom_1_1GeometryFactory.html">GeometryFactory</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#a98686e191020238127d76c044ad97617">factory</a></td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pri-methods"></a>
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Private Member Functions</h2></td></tr>
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<tr class="memitem:a872dd23c4efc74913abcdc18e78aeefd"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#a872dd23c4efc74913abcdc18e78aeefd">GeometryTransformer</a> (const <a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html">GeometryTransformer</a> &other)=delete</td></tr>
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<tr class="memitem:ae1e67fd8975576db5ebc66bbc74d6b13"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html">GeometryTransformer</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#ae1e67fd8975576db5ebc66bbc74d6b13">operator=</a> (const <a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html">GeometryTransformer</a> &rhs)=delete</td></tr>
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Private Attributes</h2></td></tr>
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<tr class="memitem:ae5b15bf9a6d02890d3423eecb48a7364"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#ae5b15bf9a6d02890d3423eecb48a7364">inputGeom</a></td></tr>
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<tr class="memitem:a76dfed4482c19d4c6bc0d64abc2715fb"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#a76dfed4482c19d4c6bc0d64abc2715fb">pruneEmptyGeometry</a></td></tr>
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<tr class="memitem:aa8635297e71d199be595ad3590871c34"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#aa8635297e71d199be595ad3590871c34">preserveGeometryCollectionType</a></td></tr>
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<tr class="memitem:ae17ca660cfc00c3874e675b35f3f5d90"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#ae17ca660cfc00c3874e675b35f3f5d90">preserveType</a></td></tr>
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<tr class="memitem:abcfd64826a2d4e6a149fb2d9e56587c4"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#abcfd64826a2d4e6a149fb2d9e56587c4">skipTransformedInvalidInteriorRings</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>A framework for processes which transform an input <a class="el" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory. ">Geometry</a> into an output <a class="el" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory. ">Geometry</a>, possibly changing its structure and type(s). </p>
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<p>This class is a framework for implementing subclasses which perform transformations on various different <a class="el" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory. ">Geometry</a> subclasses. It provides an easy way of applying specific transformations to given geometry types, while allowing unhandled types to be simply copied. Also, the framework ensures that if subcomponents change type the parent geometries types change appropriately to maintain valid structure. Subclasses will override whichever <code>transformX</code> methods they need to to handle particular <a class="el" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory. ">Geometry</a> types.</p>
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<p>A typically usage would be a transformation that may transform Polygons into Polygons, LineStrings or Points. This class would likely need to override the <code><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#aadf6299c96c889d88d1fff9a4cfa50bb">GeometryTransformer::transformMultiPolygon</a>(const MultiPolygon* geom, const Geometry* parent)</code> method to ensure that if input Polygons change type the result is a <a class="el" href="classgeos_1_1geom_1_1GeometryCollection.html" title="Represents a collection of heterogeneous Geometry objects. ">GeometryCollection</a>, not a <a class="el" href="classgeos_1_1geom_1_1MultiPolygon.html">MultiPolygon</a></p>
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<p>The default behaviour of this class is to simply recursively transform each <a class="el" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory. ">Geometry</a> component into an identical object by copying.</p>
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<p>Note that all <code>transformX</code> methods may return <code>null</code>, to avoid creating empty geometry objects. This will be handled correctly by the transformer. The <code><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html#a8b8568148ed1dde8d90633b78528545e">GeometryTransformer::transform(const Geometry* nInputGeom)</a></code> method itself will always return a geometry object.</p>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryEditor.html">GeometryEditor</a></dd></dl>
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<p>Possible extensions: getParent() method to return immediate parent e.g. of LinearRings in Polygons </p>
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<p>Definition at line <a class="el" href="GeometryTransformer_8h_source.html#l00089">89</a> of file <a class="el" href="GeometryTransformer_8h_source.html">GeometryTransformer.h</a>.</p>
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</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<td class="memname">virtual geos::geom::util::GeometryTransformer::~GeometryTransformer </td>
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<td class="paramtype">const <a class="el" href="classgeos_1_1geom_1_1util_1_1GeometryTransformer.html">GeometryTransformer</a> & </td>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname"><a class="el" href="classgeos_1_1geom_1_1CoordinateSequence.html#aca329cbbec92629bbc708360109949e1">CoordinateSequence::Ptr</a> geos::geom::util::GeometryTransformer::createCoordinateSequence </td>
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<p>Convenience method which provides standard way of creating a <a class="el" href="classgeos_1_1geom_1_1CoordinateSequence.html" title="The internal representation of a list of coordinates inside a Geometry. ">CoordinateSequence</a>. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<dl class="section return"><dt>Returns</dt><dd>a coordinate sequence for the array</dd></dl>
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<p>[final] </p>
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<p>Reimplemented in <a class="el" href="classgeos_1_1geom_1_1util_1_1Densifier_1_1DensifyTransformer.html#a0da73543df327611732bad128d8e37f0">geos::geom::util::Densifier::DensifyTransformer</a>.</p>
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<td class="memname">virtual <a class="el" href="classgeos_1_1geom_1_1Geometry.html#a57c6acd6bb0a8371356897f40247ed33">Geometry::Ptr</a> geos::geom::util::GeometryTransformer::transformMultiPolygon </td>
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<p>Reimplemented in <a class="el" href="classgeos_1_1geom_1_1util_1_1Densifier_1_1DensifyTransformer.html#af2305dd317398d72eda79afcdbc69d9c">geos::geom::util::Densifier::DensifyTransformer</a>.</p>
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<td class="memname">virtual <a class="el" href="classgeos_1_1geom_1_1Geometry.html#a57c6acd6bb0a8371356897f40247ed33">Geometry::Ptr</a> geos::geom::util::GeometryTransformer::transformPoint </td>
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<td class="memname">virtual <a class="el" href="classgeos_1_1geom_1_1Geometry.html#a57c6acd6bb0a8371356897f40247ed33">Geometry::Ptr</a> geos::geom::util::GeometryTransformer::transformPolygon </td>
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<p>Reimplemented in <a class="el" href="classgeos_1_1geom_1_1util_1_1Densifier_1_1DensifyTransformer.html#a6ea0b14643ea7d70636a797564c70fe8">geos::geom::util::Densifier::DensifyTransformer</a>.</p>
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<h2 class="groupheader">Member Data Documentation</h2>
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<p>Definition at line <a class="el" href="GeometryTransformer_8h_source.html#l00103">103</a> of file <a class="el" href="GeometryTransformer_8h_source.html">GeometryTransformer.h</a>.</p>
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<p>Definition at line <a class="el" href="GeometryTransformer_8h_source.html#l00155">155</a> of file <a class="el" href="GeometryTransformer_8h_source.html">GeometryTransformer.h</a>.</p>
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<p><code>true</code> if a homogenous collection result from a <a class="el" href="classgeos_1_1geom_1_1GeometryCollection.html">GeometryCollection</a> should still be a general <a class="el" href="classgeos_1_1geom_1_1GeometryCollection.html" title="Represents a collection of heterogeneous Geometry objects. ">GeometryCollection</a> </p>
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<p>Definition at line <a class="el" href="GeometryTransformer_8h_source.html#l00168">168</a> of file <a class="el" href="GeometryTransformer_8h_source.html">GeometryTransformer.h</a>.</p>
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<p><code>true</code> if the output from a collection argument should still be a collection <code>true</code> if the type of the input should be preserved </p>
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<p>Definition at line <a class="el" href="GeometryTransformer_8h_source.html#l00178">178</a> of file <a class="el" href="GeometryTransformer_8h_source.html">GeometryTransformer.h</a>.</p>
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<p><code>true</code> if empty geometries should not be included in the result </p>
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<p>Definition at line <a class="el" href="GeometryTransformer_8h_source.html#l00161">161</a> of file <a class="el" href="GeometryTransformer_8h_source.html">GeometryTransformer.h</a>.</p>
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<p><code>true</code> if transformed invalid interior rings should be skipped </p>
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<p>Definition at line <a class="el" href="GeometryTransformer_8h_source.html#l00183">183</a> of file <a class="el" href="GeometryTransformer_8h_source.html">GeometryTransformer.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="GeometryTransformer_8h_source.html">GeometryTransformer.h</a></li>
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