962 lines
45 KiB
HTML
962 lines
45 KiB
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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_1geomgraph.html">geomgraph</a></li><li class="navelem"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html">EdgeEnd</a></li> </ul>
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<div class="title">geos::geomgraph::EdgeEnd Class Reference</div> </div>
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<p>Models the end of an edge incident on a node.
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<a href="classgeos_1_1geomgraph_1_1EdgeEnd.html#details">More...</a></p>
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<p><code>#include <<a class="el" href="EdgeEnd_8h_source.html">EdgeEnd.h</a>></code></p>
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Inheritance diagram for geos::geomgraph::EdgeEnd:</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:a0c62e8235b62dcfa88b283acb791bd25"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#a0c62e8235b62dcfa88b283acb791bd25">EdgeEnd</a> ()</td></tr>
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<tr class="separator:a0c62e8235b62dcfa88b283acb791bd25"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a4b966cf72e97d4704b0550daa23454fd"><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#a4b966cf72e97d4704b0550daa23454fd">~EdgeEnd</a> ()</td></tr>
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<tr class="separator:a4b966cf72e97d4704b0550daa23454fd"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a35aeeb8d5e54f14b1deb352bb0bc9933"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#a35aeeb8d5e54f14b1deb352bb0bc9933">EdgeEnd</a> (<a class="el" href="classgeos_1_1geomgraph_1_1Edge.html">Edge</a> *newEdge, const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> &newP0, const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> &newP1, const <a class="el" href="classgeos_1_1geomgraph_1_1Label.html">Label</a> &newLabel)</td></tr>
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<tr class="memitem:a8e1d7310f89a3f625a4f1a32414b5c41"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#a8e1d7310f89a3f625a4f1a32414b5c41">EdgeEnd</a> (<a class="el" href="classgeos_1_1geomgraph_1_1Edge.html">Edge</a> *newEdge, const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> &newP0, const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> &newP1)</td></tr>
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<tr class="separator:a8e1d7310f89a3f625a4f1a32414b5c41"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aff0c66f13c0bbacb9847c196da53f088"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classgeos_1_1geomgraph_1_1Edge.html">Edge</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#aff0c66f13c0bbacb9847c196da53f088">getEdge</a> ()</td></tr>
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<tr class="memitem:a0b1ee990496b236bea40dfb356f92f68"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classgeos_1_1geomgraph_1_1Label.html">Label</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#a0b1ee990496b236bea40dfb356f92f68">getLabel</a> ()</td></tr>
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<tr class="memitem:a872a25b1fcb701c67d62791699aa5e95"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="classgeos_1_1geomgraph_1_1Label.html">Label</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#a872a25b1fcb701c67d62791699aa5e95">getLabel</a> () const </td></tr>
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<tr class="memitem:a3d51741bca0671cf06228aacd23ebd11"><td class="memItemLeft" align="right" valign="top">virtual <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_1geomgraph_1_1EdgeEnd.html#a3d51741bca0671cf06228aacd23ebd11">getCoordinate</a> ()</td></tr>
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<tr class="memitem:a784517be0e5b2e0b5ec2d45dcf58ccfd"><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_1geomgraph_1_1EdgeEnd.html#a784517be0e5b2e0b5ec2d45dcf58ccfd">getCoordinate</a> () const </td></tr>
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<tr class="separator:a784517be0e5b2e0b5ec2d45dcf58ccfd"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a50a5796fbb3d671e3e50a20f2656b5a3"><td class="memItemLeft" align="right" valign="top">virtual <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_1geomgraph_1_1EdgeEnd.html#a50a5796fbb3d671e3e50a20f2656b5a3">getDirectedCoordinate</a> ()</td></tr>
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<tr class="memitem:acfeda56d10e8668a2aad821382dfba8d"><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#acfeda56d10e8668a2aad821382dfba8d">getQuadrant</a> ()</td></tr>
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<tr class="memitem:adfbaafacddeffc1435242382e0bc679a"><td class="memItemLeft" align="right" valign="top">virtual double </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#adfbaafacddeffc1435242382e0bc679a">getDx</a> ()</td></tr>
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<tr class="memitem:a9738e5b4d0ccf5a2fb914c799125c902"><td class="memItemLeft" align="right" valign="top">virtual double </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#a9738e5b4d0ccf5a2fb914c799125c902">getDy</a> ()</td></tr>
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<tr class="memitem:aa251db0ab3d450da06f8111d1febaee2"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#aa251db0ab3d450da06f8111d1febaee2">setNode</a> (<a class="el" href="classgeos_1_1geomgraph_1_1Node.html">Node</a> *newNode)</td></tr>
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<tr class="memitem:ad2100bbdecc7f133c6f0e5be682f427f"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classgeos_1_1geomgraph_1_1Node.html">Node</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#ad2100bbdecc7f133c6f0e5be682f427f">getNode</a> ()</td></tr>
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<tr class="memitem:a7eec4d3946390ede0c646ecb0b70c7c7"><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#a7eec4d3946390ede0c646ecb0b70c7c7">compareTo</a> (const <a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html">EdgeEnd</a> *e) const </td></tr>
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<tr class="memitem:ad46b4d1b7ce84f902d30e0efe8fe03b2"><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#ad46b4d1b7ce84f902d30e0efe8fe03b2">compareDirection</a> (const <a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html">EdgeEnd</a> *e) const </td></tr>
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<tr class="memitem:a5ec160c8cfb4b60a2124e82f5bb8b28e"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#a5ec160c8cfb4b60a2124e82f5bb8b28e">computeLabel</a> (const <a class="el" href="classgeos_1_1algorithm_1_1BoundaryNodeRule.html">algorithm::BoundaryNodeRule</a> &bnr)</td></tr>
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<tr class="memitem:a30c327045836e66194fb4b4d1c08db9c"><td class="memItemLeft" align="right" valign="top">virtual std::string </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#a30c327045836e66194fb4b4d1c08db9c">print</a> () const </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:a8aab4a7f531bf736baf120801555c5e9"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#a8aab4a7f531bf736baf120801555c5e9">EdgeEnd</a> (<a class="el" href="classgeos_1_1geomgraph_1_1Edge.html">Edge</a> *newEdge)</td></tr>
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<tr class="memitem:a225d6b7f43e98404add159c7eb6ed738"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#a225d6b7f43e98404add159c7eb6ed738">init</a> (const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> &newP0, const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> &newP1)</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-attribs"></a>
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Protected Attributes</h2></td></tr>
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<tr class="memitem:aa26313ad95dc64861be26631570da42e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classgeos_1_1geomgraph_1_1Edge.html">Edge</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#aa26313ad95dc64861be26631570da42e">edge</a></td></tr>
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<tr class="memitem:aef0a7db293e4542058072ff5df9db5f3"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classgeos_1_1geomgraph_1_1Label.html">Label</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#aef0a7db293e4542058072ff5df9db5f3">label</a></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:ace6d5e0764fc358fccc612c9a9c8ef59"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classgeos_1_1geomgraph_1_1Node.html">Node</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#ace6d5e0764fc358fccc612c9a9c8ef59">node</a></td></tr>
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<tr class="memdesc:ace6d5e0764fc358fccc612c9a9c8ef59"><td class="mdescLeft"> </td><td class="mdescRight">the node this edge end originates at <a href="#ace6d5e0764fc358fccc612c9a9c8ef59">More...</a><br /></td></tr>
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<tr class="memitem:a7d133808dbcb69b477ed19412c6cb237"><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_1geomgraph_1_1EdgeEnd.html#a7d133808dbcb69b477ed19412c6cb237">p0</a></td></tr>
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<tr class="memdesc:a7d133808dbcb69b477ed19412c6cb237"><td class="mdescLeft"> </td><td class="mdescRight">points of initial line segment. FIXME: do we need a copy here ? <a href="#a7d133808dbcb69b477ed19412c6cb237">More...</a><br /></td></tr>
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<tr class="memitem:a6c503633cd4e821d5984bf912a3871c0"><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_1geomgraph_1_1EdgeEnd.html#a6c503633cd4e821d5984bf912a3871c0">p1</a></td></tr>
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<tr class="memitem:a8eb5c34e4a0b1ff1a91f405b1c6d6f19"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#a8eb5c34e4a0b1ff1a91f405b1c6d6f19">dx</a></td></tr>
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<tr class="memdesc:a8eb5c34e4a0b1ff1a91f405b1c6d6f19"><td class="mdescLeft"> </td><td class="mdescRight">the direction vector for this edge from its starting point <a href="#a8eb5c34e4a0b1ff1a91f405b1c6d6f19">More...</a><br /></td></tr>
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<tr class="memitem:acee29a12f324dfe7f030c94ca5614883"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#acee29a12f324dfe7f030c94ca5614883">dy</a></td></tr>
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<tr class="memitem:a7a3be97eb7f8a94ed08bbabc616a3fc8"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#a7a3be97eb7f8a94ed08bbabc616a3fc8">quadrant</a></td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="friends"></a>
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Friends</h2></td></tr>
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<tr class="memitem:aff90a31d50a02fcb654149f4b1e23f3a"><td class="memItemLeft" align="right" valign="top">std::ostream & </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html#aff90a31d50a02fcb654149f4b1e23f3a">operator<<</a> (std::ostream &, const <a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html">EdgeEnd</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>Models the end of an edge incident on a node. </p>
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<p>EdgeEnds have a direction determined by the direction of the ray from the initial point to the next point. EdgeEnds are comparable under the ordering "a has a greater angle with the x-axis than b". This ordering is used to sort EdgeEnds around a node. </p>
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<p>Definition at line <a class="el" href="EdgeEnd_8h_source.html#l00056">56</a> of file <a class="el" href="EdgeEnd_8h_source.html">EdgeEnd.h</a>.</p>
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</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<td class="memname">virtual geos::geomgraph::EdgeEnd::~EdgeEnd </td>
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<td>(</td>
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<p>Definition at line <a class="el" href="EdgeEnd_8h_source.html#l00065">65</a> of file <a class="el" href="EdgeEnd_8h_source.html">EdgeEnd.h</a>.</p>
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<td class="memname">geos::geomgraph::EdgeEnd::EdgeEnd </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="classgeos_1_1geomgraph_1_1Edge.html">Edge</a> * </td>
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<p>NOTES:</p><ul>
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<li>Copies the given <a class="el" href="classgeos_1_1geomgraph_1_1Label.html" title="A Label indicates the topological relationship of a component of a topology graph to a given Geometry...">Label</a></li>
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<li>keeps a pointer to given <a class="el" href="classgeos_1_1geomgraph_1_1Edge.html">Edge</a>, make sure it's not deleted before the <a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html" title="Models the end of an edge incident on a node. ">EdgeEnd</a>.</li>
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<td class="paramtype"><a class="el" href="classgeos_1_1geomgraph_1_1Edge.html">Edge</a> * </td>
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<p>NOTES:</p><ul>
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<li>keeps a pointer to given <a class="el" href="classgeos_1_1geomgraph_1_1Edge.html">Edge</a>, make sure it's not deleted before the <a class="el" href="classgeos_1_1geomgraph_1_1EdgeEnd.html" title="Models the end of an edge incident on a node. ">EdgeEnd</a>.</li>
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<h2 class="groupheader">Member Function Documentation</h2>
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<p>Implements the total order relation:</p>
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<p>a has a greater angle with the positive x-axis than b</p>
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<p>Using the obvious algorithm of simply computing the angle is not robust, since the angle calculation is obviously susceptible to roundoff. A robust algorithm is:</p><ul>
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<li>first compare the quadrant. If the quadrants are different, it it trivial to determine which vector is "greater".</li>
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<td class="memname">virtual int geos::geomgraph::EdgeEnd::compareTo </td>
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<p>Referenced by <a class="el" href="EdgeEnd_8h_source.html#l00181">geos::geomgraph::EdgeEndLT::operator()()</a>.</p>
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<p>Reimplemented in <a class="el" href="classgeos_1_1operation_1_1relate_1_1EdgeEndBundle.html#a71d2058d17a7132c0c3417b1f2bf23cc">geos::operation::relate::EdgeEndBundle</a>.</p>
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<p>Definition at line <a class="el" href="EdgeEnd_8h_source.html#l00106">106</a> of file <a class="el" href="EdgeEnd_8h_source.html">EdgeEnd.h</a>.</p>
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<p>Definition at line <a class="el" href="EdgeEnd_8h_source.html#l00111">111</a> of file <a class="el" href="EdgeEnd_8h_source.html">EdgeEnd.h</a>.</p>
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<td class="memname"><a class="el" href="classgeos_1_1geomgraph_1_1Edge.html">Edge</a>* geos::geomgraph::EdgeEnd::getEdge </td>
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<p>Definition at line <a class="el" href="EdgeEnd_8h_source.html#l00088">88</a> of file <a class="el" href="EdgeEnd_8h_source.html">EdgeEnd.h</a>.</p>
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<p>Definition at line <a class="el" href="EdgeEnd_8h_source.html#l00095">95</a> of file <a class="el" href="EdgeEnd_8h_source.html">EdgeEnd.h</a>.</p>
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<p>Definition at line <a class="el" href="EdgeEnd_8h_source.html#l00101">101</a> of file <a class="el" href="EdgeEnd_8h_source.html">EdgeEnd.h</a>.</p>
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<p>Reimplemented in <a class="el" href="classgeos_1_1geomgraph_1_1DirectedEdge.html#a80f04fa774f4642a464b77ad35a68c7a">geos::geomgraph::DirectedEdge</a>, and <a class="el" href="classgeos_1_1operation_1_1relate_1_1EdgeEndBundle.html#a8f04a3311dacac7b25c1619d6f9c64cc">geos::operation::relate::EdgeEndBundle</a>.</p>
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<h2 class="groupheader">Friends And Related Function Documentation</h2>
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<h2 class="groupheader">Member Data Documentation</h2>
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<p>the direction vector for this edge from its starting point </p>
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<p>Definition at line <a class="el" href="EdgeEnd_8h_source.html#l00172">172</a> of file <a class="el" href="EdgeEnd_8h_source.html">EdgeEnd.h</a>.</p>
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<p>Definition at line <a class="el" href="EdgeEnd_8h_source.html#l00172">172</a> of file <a class="el" href="EdgeEnd_8h_source.html">EdgeEnd.h</a>.</p>
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<p>Definition at line <a class="el" href="EdgeEnd_8h_source.html#l00154">154</a> of file <a class="el" href="EdgeEnd_8h_source.html">EdgeEnd.h</a>.</p>
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<p>Definition at line <a class="el" href="EdgeEnd_8h_source.html#l00156">156</a> of file <a class="el" href="EdgeEnd_8h_source.html">EdgeEnd.h</a>.</p>
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<p>the node this edge end originates at </p>
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<p>Definition at line <a class="el" href="EdgeEnd_8h_source.html#l00166">166</a> of file <a class="el" href="EdgeEnd_8h_source.html">EdgeEnd.h</a>.</p>
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<p>points of initial line segment. FIXME: do we need a copy here ? </p>
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<p>Definition at line <a class="el" href="EdgeEnd_8h_source.html#l00169">169</a> of file <a class="el" href="EdgeEnd_8h_source.html">EdgeEnd.h</a>.</p>
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<p>Definition at line <a class="el" href="EdgeEnd_8h_source.html#l00169">169</a> of file <a class="el" href="EdgeEnd_8h_source.html">EdgeEnd.h</a>.</p>
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<p>Definition at line <a class="el" href="EdgeEnd_8h_source.html#l00174">174</a> of file <a class="el" href="EdgeEnd_8h_source.html">EdgeEnd.h</a>.</p>
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<hr/>The documentation for this class was generated from the following file:<ul>
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