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<title>GEOS: geos::noding::IntersectionAdder Class Reference</title>
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<a href="#pub-methods">Public Member Functions</a> |
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<a href="#pub-attribs">Public Attributes</a> </div>
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<h1>geos::noding::IntersectionAdder Class Reference</h1> </div>
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<!-- doxytag: class="geos::noding::IntersectionAdder" --><!-- doxytag: inherits="geos::noding::SegmentIntersector" -->
<p><code>#include <<a class="el" href="IntersectionAdder_8h_source.html">IntersectionAdder.h</a>></code></p>
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Inheritance diagram for geos::noding::IntersectionAdder:</div>
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<img src="classgeos_1_1noding_1_1IntersectionAdder.png" usemap="#geos::noding::IntersectionAdder_map" alt=""/>
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<area href="classgeos_1_1noding_1_1SegmentIntersector.html" alt="geos::noding::SegmentIntersector" shape="rect" coords="0,0,197,24"/>
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<p><a href="classgeos_1_1noding_1_1IntersectionAdder-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"><a class="anchor" id="a2261aabc8f21db65c3c6dda7e245c955"></a><!-- doxytag: member="geos::noding::IntersectionAdder::IntersectionAdder" ref="a2261aabc8f21db65c3c6dda7e245c955" args="(algorithm::LineIntersector &newLi)" -->
</td><td class="memItemRight" valign="bottom"><b>IntersectionAdder</b> (<a class="el" href="classgeos_1_1algorithm_1_1LineIntersector.html">algorithm::LineIntersector</a> &newLi)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a4f9b105d999b63621d1856e425f98655"></a><!-- doxytag: member="geos::noding::IntersectionAdder::getLineIntersector" ref="a4f9b105d999b63621d1856e425f98655" args="()" -->
<a class="el" href="classgeos_1_1algorithm_1_1LineIntersector.html">algorithm::LineIntersector</a> & </td><td class="memItemRight" valign="bottom"><b>getLineIntersector</b> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const <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_1noding_1_1IntersectionAdder.html#a8343f416e551d07204b681a47bd5a2dc">getProperIntersectionPoint</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aa24647fa6f90433ae81c8109beddc829"></a><!-- doxytag: member="geos::noding::IntersectionAdder::hasIntersection" ref="aa24647fa6f90433ae81c8109beddc829" args="()" -->
bool </td><td class="memItemRight" valign="bottom"><b>hasIntersection</b> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1noding_1_1IntersectionAdder.html#a97e082438a0ca42ab804b7d061a752d3">hasProperIntersection</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1noding_1_1IntersectionAdder.html#a7226f13f231d0a496f0286a42d9e1ea4">hasProperInteriorIntersection</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1noding_1_1IntersectionAdder.html#a1b2affb36276fc054692f90196204377">hasInteriorIntersection</a> ()</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_1IntersectionAdder.html#a6bb3124a2ec395b39762eedcd5758de7">processIntersections</a> (<a class="el" href="classgeos_1_1noding_1_1SegmentString.html">SegmentString</a> *e0, int segIndex0, <a class="el" href="classgeos_1_1noding_1_1SegmentString.html">SegmentString</a> *e1, int segIndex1)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1noding_1_1IntersectionAdder.html#aa904563a2e9b0784cdd5b484d4704ac7">isDone</a> () const </td></tr>
<tr><td colspan="2"><h2><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="abc74e735907cdda6d390714678174a38"></a><!-- doxytag: member="geos::noding::IntersectionAdder::isAdjacentSegments" ref="abc74e735907cdda6d390714678174a38" args="(int i1, int i2)" -->
static bool </td><td class="memItemRight" valign="bottom"><b>isAdjacentSegments</b> (int i1, int i2)</td></tr>
<tr><td colspan="2"><h2><a name="pub-attribs"></a>
Public Attributes</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a496dabe962092df690ac70afbe69c9fe"></a><!-- doxytag: member="geos::noding::IntersectionAdder::numIntersections" ref="a496dabe962092df690ac70afbe69c9fe" args="" -->
int </td><td class="memItemRight" valign="bottom"><b>numIntersections</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ab075115ac08a8665d94ddabb73008640"></a><!-- doxytag: member="geos::noding::IntersectionAdder::numInteriorIntersections" ref="ab075115ac08a8665d94ddabb73008640" args="" -->
int </td><td class="memItemRight" valign="bottom"><b>numInteriorIntersections</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a3da93f0736166f59a1a14bd8e20240fb"></a><!-- doxytag: member="geos::noding::IntersectionAdder::numProperIntersections" ref="a3da93f0736166f59a1a14bd8e20240fb" args="" -->
int </td><td class="memItemRight" valign="bottom"><b>numProperIntersections</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a3ca6ef03f448f707e9fb8cdbb652a8bc"></a><!-- doxytag: member="geos::noding::IntersectionAdder::numTests" ref="a3ca6ef03f448f707e9fb8cdbb652a8bc" args="" -->
int </td><td class="memItemRight" valign="bottom"><b>numTests</b></td></tr>
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<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>Computes the intersections between two line segments in <a class="el" href="classgeos_1_1noding_1_1SegmentString.html" title="An interface for classes which represent a sequence of contiguous line segments.">SegmentString</a> and adds them to each string. The <a class="el" href="classgeos_1_1noding_1_1SegmentIntersector.html">SegmentIntersector</a> is passed to a <a class="el" href="classgeos_1_1noding_1_1Noder.html">Noder</a>. The <a class="el" href="">addIntersections</a> method is called whenever the <a class="el" href="classgeos_1_1noding_1_1Noder.html">Noder</a> detects that two SegmentStrings <em>might</em> intersect. This class is an example of the <em>Strategy</em> pattern. </p>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a8343f416e551d07204b681a47bd5a2dc"></a><!-- doxytag: member="geos::noding::IntersectionAdder::getProperIntersectionPoint" ref="a8343f416e551d07204b681a47bd5a2dc" args="()" -->
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<td class="memname">const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a>* geos::noding::IntersectionAdder::getProperIntersectionPoint </td>
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<td><code> [inline]</code></td>
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<dl class="return"><dt><b>Returns:</b></dt><dd>the proper intersection point, or <code>NULL</code> if none was found </dd></dl>
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<a class="anchor" id="a1b2affb36276fc054692f90196204377"></a><!-- doxytag: member="geos::noding::IntersectionAdder::hasInteriorIntersection" ref="a1b2affb36276fc054692f90196204377" args="()" -->
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<td class="memname">bool geos::noding::IntersectionAdder::hasInteriorIntersection </td>
<td>(</td>
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<td> ) </td>
<td><code> [inline]</code></td>
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<p>An interior intersection is an intersection which is in the interior of some segment. </p>
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<a class="anchor" id="a7226f13f231d0a496f0286a42d9e1ea4"></a><!-- doxytag: member="geos::noding::IntersectionAdder::hasProperInteriorIntersection" ref="a7226f13f231d0a496f0286a42d9e1ea4" args="()" -->
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<td class="memname">bool geos::noding::IntersectionAdder::hasProperInteriorIntersection </td>
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<td class="paramname"></td>
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<td><code> [inline]</code></td>
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<p>A proper interior intersection is a proper intersection which is <b>not</b> contained in the set of boundary nodes set for this <a class="el" href="classgeos_1_1noding_1_1SegmentIntersector.html" title="Processes possible intersections detected by a Noder.">SegmentIntersector</a>. </p>
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<a class="anchor" id="a97e082438a0ca42ab804b7d061a752d3"></a><!-- doxytag: member="geos::noding::IntersectionAdder::hasProperIntersection" ref="a97e082438a0ca42ab804b7d061a752d3" args="()" -->
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<td class="memname">bool geos::noding::IntersectionAdder::hasProperIntersection </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td><code> [inline]</code></td>
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<p>A proper intersection is an intersection which is interior to at least two line segments. Note that a proper intersection is not necessarily in the interior of the entire Geometry, since another edge may have an endpoint equal to the intersection, which according to SFS semantics can result in the point being on the Boundary of the Geometry. </p>
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<a class="anchor" id="aa904563a2e9b0784cdd5b484d4704ac7"></a><!-- doxytag: member="geos::noding::IntersectionAdder::isDone" ref="aa904563a2e9b0784cdd5b484d4704ac7" args="() const " -->
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<td class="memname">virtual bool geos::noding::IntersectionAdder::isDone </td>
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<td> const<code> [inline, virtual]</code></td>
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<p>Always process all intersections</p>
<dl class="return"><dt><b>Returns:</b></dt><dd>false always </dd></dl>
<p>Reimplemented from <a class="el" href="classgeos_1_1noding_1_1SegmentIntersector.html#a2402e2ce3a39edad9f5d283be73b5d1d">geos::noding::SegmentIntersector</a>.</p>
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<a class="anchor" id="a6bb3124a2ec395b39762eedcd5758de7"></a><!-- doxytag: member="geos::noding::IntersectionAdder::processIntersections" ref="a6bb3124a2ec395b39762eedcd5758de7" args="(SegmentString *e0, int segIndex0, SegmentString *e1, int segIndex1)" -->
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<td class="memname">void geos::noding::IntersectionAdder::processIntersections </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classgeos_1_1noding_1_1SegmentString.html">SegmentString</a> * </td>
<td class="paramname"> <em>e0</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>segIndex0</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classgeos_1_1noding_1_1SegmentString.html">SegmentString</a> * </td>
<td class="paramname"> <em>e1</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">int </td>
<td class="paramname"> <em>segIndex1</em></td><td> </td>
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<td></td>
<td>)</td>
<td></td><td></td><td><code> [virtual]</code></td>
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<p>This method is called by clients of the <a class="el" href="classgeos_1_1noding_1_1SegmentIntersector.html">SegmentIntersector</a> class to process intersections for two segments of the SegmentStrings being intersected. Note that some clients (such as MonotoneChains) may optimize away this call for segment pairs which they have determined do not intersect (e.g. by an disjoint envelope test). </p>
<p>Implements <a class="el" href="classgeos_1_1noding_1_1SegmentIntersector.html#a23998a6202706d84baf9aac78f9d2ee5">geos::noding::SegmentIntersector</a>.</p>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="IntersectionAdder_8h_source.html">IntersectionAdder.h</a></li>
</ul>
</div>
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