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<title>GEOS: geos::noding::IteratedNoder Class Reference</title>
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<h1>geos::noding::IteratedNoder Class Reference</h1> </div>
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<!-- doxytag: class="geos::noding::IteratedNoder" --><!-- doxytag: inherits="geos::noding::Noder" -->
<p><code>#include <<a class="el" href="IteratedNoder_8h_source.html">IteratedNoder.h</a>></code></p>
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Inheritance diagram for geos::noding::IteratedNoder:</div>
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<img src="classgeos_1_1noding_1_1IteratedNoder.png" usemap="#geos::noding::IteratedNoder_map" alt=""/>
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<area href="classgeos_1_1noding_1_1Noder.html" alt="geos::noding::Noder" shape="rect" coords="0,0,166,24"/>
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<p><a href="classgeos_1_1noding_1_1IteratedNoder-members.html">List of all members.</a></p>
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<tr><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a524b346ee06e4c6ab8034f3dacfcba40"></a><!-- doxytag: member="geos::noding::IteratedNoder::IteratedNoder" ref="a524b346ee06e4c6ab8034f3dacfcba40" args="(const geom::PrecisionModel *newPm)" -->
</td><td class="memItemRight" valign="bottom"><b>IteratedNoder</b> (const <a class="el" href="classgeos_1_1geom_1_1PrecisionModel.html">geom::PrecisionModel</a> *newPm)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1noding_1_1IteratedNoder.html#a4e667d1b92701dd1b60ca7ec3ba2b1b0">setMaximumIterations</a> (int n)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">std::vector< <a class="el" href="classgeos_1_1noding_1_1SegmentString.html">SegmentString</a> * > * </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1noding_1_1IteratedNoder.html#a14f8d4ac6d7e8059d9b5e92c5158d354">getNodedSubstrings</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns a <a class="el" href="">Collection</a> of fully noded <a class="el" href="">SegmentStrings</a>. The SegmentStrings have the same context as their parent. <a href="#a14f8d4ac6d7e8059d9b5e92c5158d354"></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_1noding_1_1IteratedNoder.html#aec453e0935ccd8971cd3030e03229714">computeNodes</a> (std::vector< <a class="el" href="classgeos_1_1noding_1_1SegmentString.html">SegmentString</a> * > *inputSegmentStrings)</td></tr>
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<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>Nodes a set of SegmentStrings completely. The set of segmentStrings is fully noded; i.e. noding is repeated until no further intersections are detected. </p>
<p>Iterated noding using a FLOATING precision model is not guaranteed to converge, due to roundoff error. This problem is detected and an exception is thrown. Clients can choose to rerun the noding using a lower precision model. </p>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="aec453e0935ccd8971cd3030e03229714"></a><!-- doxytag: member="geos::noding::IteratedNoder::computeNodes" ref="aec453e0935ccd8971cd3030e03229714" args="(std::vector< SegmentString * > *inputSegmentStrings)" -->
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<td class="memname">void geos::noding::IteratedNoder::computeNodes </td>
<td>(</td>
<td class="paramtype">std::vector< <a class="el" href="classgeos_1_1noding_1_1SegmentString.html">SegmentString</a> * > * </td>
<td class="paramname"> <em>inputSegmentStrings</em></td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>Fully nodes a list of <a class="el" href="">SegmentStrings</a>, i.e. peforms noding iteratively until no intersections are found between segments. Maintains labelling of edges correctly through the noding.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>segStrings</em> </td><td>a collection of SegmentStrings to be noded </td></tr>
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</dd>
</dl>
<dl><dt><b>Exceptions:</b></dt><dd>
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<tr><td valign="top"></td><td valign="top"><em>TopologyException</em> </td><td>if the iterated noding fails to converge. </td></tr>
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</dd>
</dl>
<p>Implements <a class="el" href="classgeos_1_1noding_1_1Noder.html#a42da20658cf8a969a1cbb15fd2de725d">geos::noding::Noder</a>.</p>
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<a class="anchor" id="a14f8d4ac6d7e8059d9b5e92c5158d354"></a><!-- doxytag: member="geos::noding::IteratedNoder::getNodedSubstrings" ref="a14f8d4ac6d7e8059d9b5e92c5158d354" args="() const " -->
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<td class="memname">std::vector<<a class="el" href="classgeos_1_1noding_1_1SegmentString.html">SegmentString</a>*>* geos::noding::IteratedNoder::getNodedSubstrings </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td> const<code> [inline, virtual]</code></td>
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<p>Returns a <a class="el" href="">Collection</a> of fully noded <a class="el" href="">SegmentStrings</a>. The SegmentStrings have the same context as their parent. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>a newly allocated std::vector of const SegmentStrings. Caller is responsible to delete it </dd></dl>
<p>Implements <a class="el" href="classgeos_1_1noding_1_1Noder.html#a47dfe5a95741c2c9809d94f8ba39fa89">geos::noding::Noder</a>.</p>
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<a class="anchor" id="a4e667d1b92701dd1b60ca7ec3ba2b1b0"></a><!-- doxytag: member="geos::noding::IteratedNoder::setMaximumIterations" ref="a4e667d1b92701dd1b60ca7ec3ba2b1b0" args="(int n)" -->
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<td class="memname">void geos::noding::IteratedNoder::setMaximumIterations </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>n</em></td>
<td> ) </td>
<td><code> [inline]</code></td>
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<p>Sets the maximum number of noding iterations performed before the noding is aborted. Experience suggests that this should rarely need to be changed from the default. The default is MAX_ITER.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>n</em> </td><td>the maximum number of iterations to perform </td></tr>
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</dd>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="IteratedNoder_8h_source.html">IteratedNoder.h</a></li>
</ul>
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