702 lines
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702 lines
35 KiB
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<div id="projectname">GEOS
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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_1relate.html">relate</a></li><li class="navelem"><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html">RelateComputer</a></li> </ul>
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<div class="title">geos::operation::relate::RelateComputer Class Reference</div> </div>
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<p>Computes the topological relationship between two Geometries.
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<a href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html#details">More...</a></p>
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<p><code>#include <<a class="el" href="RelateComputer_8h_source.html">RelateComputer.h</a>></code></p>
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Collaboration diagram for geos::operation::relate::RelateComputer:</div>
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<div class="center"><div class="zoom"><iframe scrolling="no" frameborder="0" src="classgeos_1_1operation_1_1relate_1_1RelateComputer__coll__graph.svg" width="100%" height="466"><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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Public Member Functions</h2></td></tr>
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<tr class="memitem:a92178f89ba59eabe39bbcf128ee2caf6"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html#a92178f89ba59eabe39bbcf128ee2caf6">RelateComputer</a> (std::vector< <a class="el" href="classgeos_1_1geomgraph_1_1GeometryGraph.html">geomgraph::GeometryGraph</a> * > *newArg)</td></tr>
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<tr class="separator:a92178f89ba59eabe39bbcf128ee2caf6"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aa132716fe7a4b6c9f0bf8052b2fa14be"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html#aa132716fe7a4b6c9f0bf8052b2fa14be">~RelateComputer</a> ()=default</td></tr>
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<tr class="separator:aa132716fe7a4b6c9f0bf8052b2fa14be"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a318f9f8bb5e273c20277bada6aaefaa8"><td class="memItemLeft" align="right" valign="top">std::unique_ptr< <a class="el" href="classgeos_1_1geom_1_1IntersectionMatrix.html">geom::IntersectionMatrix</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html#a318f9f8bb5e273c20277bada6aaefaa8">computeIM</a> ()</td></tr>
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<tr class="separator:a318f9f8bb5e273c20277bada6aaefaa8"><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="pri-methods"></a>
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Private Member Functions</h2></td></tr>
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<tr class="memitem:a13fa90d058f0eea82e1bea80087f277e"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html#a13fa90d058f0eea82e1bea80087f277e">insertEdgeEnds</a> (std::vector< <a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html">geomgraph::EdgeEnd</a> * > *ee)</td></tr>
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<tr class="separator:a13fa90d058f0eea82e1bea80087f277e"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a7c9a4dd537caf54ae75ea0531c389ade"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html#a7c9a4dd537caf54ae75ea0531c389ade">computeProperIntersectionIM</a> (<a class="el" href="classgeos_1_1geomgraph_1_1index_1_1SegmentIntersector.html">geomgraph::index::SegmentIntersector</a> *intersector, <a class="el" href="classgeos_1_1geom_1_1IntersectionMatrix.html">geom::IntersectionMatrix</a> *imX)</td></tr>
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<tr class="memitem:af9179f15ef4b94189c2fd8270e501103"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html#af9179f15ef4b94189c2fd8270e501103">copyNodesAndLabels</a> (int argIndex)</td></tr>
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<tr class="memitem:aaba7595139269973693b2df46bd9a03b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html#aaba7595139269973693b2df46bd9a03b">computeIntersectionNodes</a> (int argIndex)</td></tr>
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<tr class="memitem:a6cdbc0cc682cf9b18fd3937523ff7e05"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html#a6cdbc0cc682cf9b18fd3937523ff7e05">labelIntersectionNodes</a> (int argIndex)</td></tr>
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<tr class="memitem:a4baaee733f4835ea9bd0c5e0fccec3d8"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html#a4baaee733f4835ea9bd0c5e0fccec3d8">computeDisjointIM</a> (<a class="el" href="classgeos_1_1geom_1_1IntersectionMatrix.html">geom::IntersectionMatrix</a> *imX)</td></tr>
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<tr class="separator:a4baaee733f4835ea9bd0c5e0fccec3d8"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a70bcf4221ae5d92e838b092a10cce86b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html#a70bcf4221ae5d92e838b092a10cce86b">labelNodeEdges</a> ()</td></tr>
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<tr class="memitem:a31b6491261132811a1c6e812ca4a40c9"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html#a31b6491261132811a1c6e812ca4a40c9">updateIM</a> (<a class="el" href="classgeos_1_1geom_1_1IntersectionMatrix.html">geom::IntersectionMatrix</a> &imX)</td></tr>
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<tr class="memitem:a5ef4ecdda2a2d0d1ff0f64dd3c490c80"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html#a5ef4ecdda2a2d0d1ff0f64dd3c490c80">labelIsolatedEdges</a> (int thisIndex, int targetIndex)</td></tr>
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<tr class="memitem:a12b038f7b1f259496985b5d739f52a18"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html#a12b038f7b1f259496985b5d739f52a18">labelIsolatedEdge</a> (<a class="el" href="classgeos_1_1geomgraph_1_1Edge.html">geomgraph::Edge</a> *e, int targetIndex, const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a> *target)</td></tr>
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<tr class="memitem:a1309d24fd98e890b777640f21c87da55"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html#a1309d24fd98e890b777640f21c87da55">labelIsolatedNodes</a> ()</td></tr>
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<tr class="memitem:a622b93bbab6fe26044dd3483d0d07db7"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html#a622b93bbab6fe26044dd3483d0d07db7">labelIsolatedNode</a> (<a class="el" href="classgeos_1_1geomgraph_1_1Node.html">geomgraph::Node</a> *n, int targetIndex)</td></tr>
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<tr class="separator:a622b93bbab6fe26044dd3483d0d07db7"><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="pri-attribs"></a>
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Private Attributes</h2></td></tr>
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<tr class="memitem:ab15386c0874ae3d4895564bca3d57eb1"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classgeos_1_1algorithm_1_1LineIntersector.html">algorithm::LineIntersector</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html#ab15386c0874ae3d4895564bca3d57eb1">li</a></td></tr>
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<tr class="separator:ab15386c0874ae3d4895564bca3d57eb1"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:adb5e27f2140641a3763df2921f07e44b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classgeos_1_1algorithm_1_1PointLocator.html">algorithm::PointLocator</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html#adb5e27f2140641a3763df2921f07e44b">ptLocator</a></td></tr>
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<tr class="memitem:aab349765f0ba0ca0b3a8afac9eb631dd"><td class="memItemLeft" align="right" valign="top">std::vector< <a class="el" href="classgeos_1_1geomgraph_1_1GeometryGraph.html">geomgraph::GeometryGraph</a> * > * </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html#aab349765f0ba0ca0b3a8afac9eb631dd">arg</a></td></tr>
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<tr class="memdesc:aab349765f0ba0ca0b3a8afac9eb631dd"><td class="mdescLeft"> </td><td class="mdescRight">the arg(s) of the operation <a href="#aab349765f0ba0ca0b3a8afac9eb631dd">More...</a><br /></td></tr>
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<tr class="separator:aab349765f0ba0ca0b3a8afac9eb631dd"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a0610d6c7601519d3c8090fbb5bab6a61"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classgeos_1_1geomgraph_1_1NodeMap.html">geomgraph::NodeMap</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html#a0610d6c7601519d3c8090fbb5bab6a61">nodes</a></td></tr>
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<tr class="separator:a0610d6c7601519d3c8090fbb5bab6a61"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a2bdfd966e58f7337a0076fdab23a5084"><td class="memItemLeft" align="right" valign="top">std::unique_ptr< <a class="el" href="classgeos_1_1geom_1_1IntersectionMatrix.html">geom::IntersectionMatrix</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html#a2bdfd966e58f7337a0076fdab23a5084">im</a></td></tr>
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<tr class="memdesc:a2bdfd966e58f7337a0076fdab23a5084"><td class="mdescLeft"> </td><td class="mdescRight">this intersection matrix will hold the results compute for the relate <a href="#a2bdfd966e58f7337a0076fdab23a5084">More...</a><br /></td></tr>
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<tr class="separator:a2bdfd966e58f7337a0076fdab23a5084"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a2472dc3aafb09a4b5d18a432245a7b0c"><td class="memItemLeft" align="right" valign="top">std::vector< <a class="el" href="classgeos_1_1geomgraph_1_1Edge.html">geomgraph::Edge</a> * > </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html#a2472dc3aafb09a4b5d18a432245a7b0c">isolatedEdges</a></td></tr>
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<tr class="separator:a2472dc3aafb09a4b5d18a432245a7b0c"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a51c4928a0baf42f12663c1f9cf45b2df"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html#a51c4928a0baf42f12663c1f9cf45b2df">invalidPoint</a></td></tr>
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<tr class="memdesc:a51c4928a0baf42f12663c1f9cf45b2df"><td class="mdescLeft"> </td><td class="mdescRight">the intersection point found (if any) <a href="#a51c4928a0baf42f12663c1f9cf45b2df">More...</a><br /></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 topological relationship between two Geometries. </p>
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<p><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html" title="Computes the topological relationship between two Geometries. ">RelateComputer</a> does not need to build a complete graph structure to compute the IntersectionMatrix. The relationship between the geometries can be computed by simply examining the labelling of edges incident on each node.</p>
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<p><a class="el" href="classgeos_1_1operation_1_1relate_1_1RelateComputer.html" title="Computes the topological relationship between two Geometries. ">RelateComputer</a> does not currently support arbitrary GeometryCollections. This is because GeometryCollections can contain overlapping Polygons. In order to correct compute relate on overlapping Polygons, they would first need to be noded and merged (if not explicitly, at least implicitly). </p>
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<p>Definition at line <a class="el" href="RelateComputer_8h_source.html#l00075">75</a> of file <a class="el" href="RelateComputer_8h_source.html">RelateComputer.h</a>.</p>
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</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<td class="memname">geos::operation::relate::RelateComputer::RelateComputer </td>
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<td>(</td>
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<td class="paramtype">std::vector< <a class="el" href="classgeos_1_1geomgraph_1_1GeometryGraph.html">geomgraph::GeometryGraph</a> * > * </td>
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<td class="paramname"><em>newArg</em></td><td>)</td>
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<td class="memname">geos::operation::relate::RelateComputer::~RelateComputer </td>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">void geos::operation::relate::RelateComputer::computeDisjointIM </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="classgeos_1_1geom_1_1IntersectionMatrix.html">geom::IntersectionMatrix</a> * </td>
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<td class="paramname"><em>imX</em></td><td>)</td>
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<p>If the Geometries are disjoint, we need to enter their dimension and boundary dimension in the Ext rows in the IM </p>
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<td class="memname">std::unique_ptr<<a class="el" href="classgeos_1_1geom_1_1IntersectionMatrix.html">geom::IntersectionMatrix</a>> geos::operation::relate::RelateComputer::computeIM </td>
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<td class="memname">void geos::operation::relate::RelateComputer::computeIntersectionNodes </td>
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<td class="memname">void geos::operation::relate::RelateComputer::computeProperIntersectionIM </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="classgeos_1_1geomgraph_1_1index_1_1SegmentIntersector.html">geomgraph::index::SegmentIntersector</a> * </td>
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<td class="paramname"><em>intersector</em>, </td>
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<td class="memname">void geos::operation::relate::RelateComputer::copyNodesAndLabels </td>
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<td class="memname">void geos::operation::relate::RelateComputer::insertEdgeEnds </td>
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<td>(</td>
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<td class="paramtype">std::vector< <a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html">geomgraph::EdgeEnd</a> * > * </td>
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<td class="memname">void geos::operation::relate::RelateComputer::labelIntersectionNodes </td>
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<td class="memname">void geos::operation::relate::RelateComputer::labelIsolatedEdge </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="classgeos_1_1geomgraph_1_1Edge.html">geomgraph::Edge</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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<p>Label an isolated edge of a graph with its relationship to the target geometry. If the target has dim 2 or 1, the edge can either be in the interior or the exterior. If the target has dim 0, the edge must be in the exterior </p>
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<td class="memname">void geos::operation::relate::RelateComputer::labelIsolatedEdges </td>
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<td>(</td>
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<p>Processes isolated edges by computing their labelling and adding them to the isolated edges list. Isolated edges are guaranteed not to touch the boundary of the target (since if they did, they would have caused an intersection to be computed and hence would not be isolated) </p>
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<td class="memname">void geos::operation::relate::RelateComputer::labelIsolatedNode </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="classgeos_1_1geomgraph_1_1Node.html">geomgraph::Node</a> * </td>
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<p>Label an isolated node with its relationship to the target geometry. </p>
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<td class="memname">void geos::operation::relate::RelateComputer::labelIsolatedNodes </td>
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<p>Isolated nodes are nodes whose labels are incomplete (e.g. the location for one Geometry is null). This is the case because nodes in one graph which don't intersect nodes in the other are not completely labelled by the initial process of adding nodes to the nodeList. To complete the labelling we need to check for nodes that lie in the interior of edges, and in the interior of areas. </p>
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<td class="memname">void geos::operation::relate::RelateComputer::labelNodeEdges </td>
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<td class="memname">void geos::operation::relate::RelateComputer::updateIM </td>
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<td>(</td>
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<p>update the IM with the sum of the IMs for each component </p>
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<h2 class="groupheader">Member Data Documentation</h2>
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<td class="memname">std::vector<<a class="el" href="classgeos_1_1geomgraph_1_1GeometryGraph.html">geomgraph::GeometryGraph</a>*>* geos::operation::relate::RelateComputer::arg</td>
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<p>the arg(s) of the operation </p>
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<p>Definition at line <a class="el" href="RelateComputer_8h_source.html#l00088">88</a> of file <a class="el" href="RelateComputer_8h_source.html">RelateComputer.h</a>.</p>
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<td class="memname">std::unique_ptr<<a class="el" href="classgeos_1_1geom_1_1IntersectionMatrix.html">geom::IntersectionMatrix</a>> geos::operation::relate::RelateComputer::im</td>
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<p>this intersection matrix will hold the results compute for the relate </p>
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<p>Definition at line <a class="el" href="RelateComputer_8h_source.html#l00093">93</a> of file <a class="el" href="RelateComputer_8h_source.html">RelateComputer.h</a>.</p>
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<td class="memname"><a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> geos::operation::relate::RelateComputer::invalidPoint</td>
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<p>the intersection point found (if any) </p>
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<p>Definition at line <a class="el" href="RelateComputer_8h_source.html#l00098">98</a> of file <a class="el" href="RelateComputer_8h_source.html">RelateComputer.h</a>.</p>
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<td class="memname">std::vector<<a class="el" href="classgeos_1_1geomgraph_1_1Edge.html">geomgraph::Edge</a>*> geos::operation::relate::RelateComputer::isolatedEdges</td>
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<p>Definition at line <a class="el" href="RelateComputer_8h_source.html#l00095">95</a> of file <a class="el" href="RelateComputer_8h_source.html">RelateComputer.h</a>.</p>
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<td class="memname"><a class="el" href="classgeos_1_1algorithm_1_1LineIntersector.html">algorithm::LineIntersector</a> geos::operation::relate::RelateComputer::li</td>
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<p>Definition at line <a class="el" href="RelateComputer_8h_source.html#l00083">83</a> of file <a class="el" href="RelateComputer_8h_source.html">RelateComputer.h</a>.</p>
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<td class="memname"><a class="el" href="classgeos_1_1geomgraph_1_1NodeMap.html">geomgraph::NodeMap</a> geos::operation::relate::RelateComputer::nodes</td>
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<p>Definition at line <a class="el" href="RelateComputer_8h_source.html#l00090">90</a> of file <a class="el" href="RelateComputer_8h_source.html">RelateComputer.h</a>.</p>
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<td class="memname"><a class="el" href="classgeos_1_1algorithm_1_1PointLocator.html">algorithm::PointLocator</a> geos::operation::relate::RelateComputer::ptLocator</td>
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<p>Definition at line <a class="el" href="RelateComputer_8h_source.html#l00085">85</a> of file <a class="el" href="RelateComputer_8h_source.html">RelateComputer.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="RelateComputer_8h_source.html">RelateComputer.h</a></li>
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