614 lines
35 KiB
HTML
614 lines
35 KiB
HTML
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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_1linearref.html">linearref</a></li><li class="navelem"><a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html">LinearIterator</a></li> </ul>
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<a href="#pub-methods">Public Member Functions</a> |
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<div class="title">geos::linearref::LinearIterator Class Reference</div> </div>
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<p>An iterator over the components and coordinates of a linear geometry (LineString or MultiLineString).
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<a href="classgeos_1_1linearref_1_1LinearIterator.html#details">More...</a></p>
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<p><code>#include <<a class="el" href="LinearIterator_8h_source.html">LinearIterator.h</a>></code></p>
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Collaboration diagram for geos::linearref::LinearIterator:</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:a632426abb87d5f3cc4b6c5fb23da7932"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html#a632426abb87d5f3cc4b6c5fb23da7932">LinearIterator</a> (const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a> *<a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html#a2138e21b499134f0b72184e26b36c0d0">linear</a>)</td></tr>
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<tr class="memdesc:a632426abb87d5f3cc4b6c5fb23da7932"><td class="mdescLeft"> </td><td class="mdescRight">Creates an iterator initialized to the start of a linear Geometry. <a href="#a632426abb87d5f3cc4b6c5fb23da7932">More...</a><br /></td></tr>
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<tr class="separator:a632426abb87d5f3cc4b6c5fb23da7932"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ac7c2eb87c4b3cbcff63999612d599daa"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html#ac7c2eb87c4b3cbcff63999612d599daa">LinearIterator</a> (const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a> *<a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html#a2138e21b499134f0b72184e26b36c0d0">linear</a>, const <a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a> &start)</td></tr>
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<tr class="memdesc:ac7c2eb87c4b3cbcff63999612d599daa"><td class="mdescLeft"> </td><td class="mdescRight">Creates an iterator starting at a <a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html" title="Represents a location along a LineString or MultiLineString. ">LinearLocation</a> on a linear <a class="el" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory. ">geom::Geometry</a>. <a href="#ac7c2eb87c4b3cbcff63999612d599daa">More...</a><br /></td></tr>
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<tr class="separator:ac7c2eb87c4b3cbcff63999612d599daa"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a81719560149c4a528b1a81ccdb24360f"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html#a81719560149c4a528b1a81ccdb24360f">LinearIterator</a> (const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a> *<a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html#a2138e21b499134f0b72184e26b36c0d0">linear</a>, size_t <a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html#ae050428011dfe6f609b108e7193a63f9">componentIndex</a>, size_t <a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html#ae8471c2444655e2233bf383ec57cc7cd">vertexIndex</a>)</td></tr>
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<tr class="memdesc:a81719560149c4a528b1a81ccdb24360f"><td class="mdescLeft"> </td><td class="mdescRight">Creates an iterator starting at a component and vertex in a linear <a class="el" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory. ">geom::Geometry</a>. <a href="#a81719560149c4a528b1a81ccdb24360f">More...</a><br /></td></tr>
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<tr class="separator:a81719560149c4a528b1a81ccdb24360f"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a3568ac2c513902a45d8fcd700adb8904"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html#a3568ac2c513902a45d8fcd700adb8904">hasNext</a> () const </td></tr>
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<tr class="memdesc:a3568ac2c513902a45d8fcd700adb8904"><td class="mdescLeft"> </td><td class="mdescRight">Tests whether there are any vertices left to iterator over. <a href="#a3568ac2c513902a45d8fcd700adb8904">More...</a><br /></td></tr>
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<tr class="separator:a3568ac2c513902a45d8fcd700adb8904"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:af71966c14f6a7ede1157c18a001a0af1"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html#af71966c14f6a7ede1157c18a001a0af1">next</a> ()</td></tr>
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<tr class="memdesc:af71966c14f6a7ede1157c18a001a0af1"><td class="mdescLeft"> </td><td class="mdescRight">Moves the iterator ahead to the next vertex and (possibly) linear component. <a href="#af71966c14f6a7ede1157c18a001a0af1">More...</a><br /></td></tr>
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<tr class="separator:af71966c14f6a7ede1157c18a001a0af1"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a6db3e2de613348d7fb28e26b288cb80a"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html#a6db3e2de613348d7fb28e26b288cb80a">isEndOfLine</a> () const </td></tr>
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<tr class="memdesc:a6db3e2de613348d7fb28e26b288cb80a"><td class="mdescLeft"> </td><td class="mdescRight">Checks whether the iterator cursor is pointing to the endpoint of a component <a class="el" href="classgeos_1_1geom_1_1LineString.html">geom::LineString</a>. <a href="#a6db3e2de613348d7fb28e26b288cb80a">More...</a><br /></td></tr>
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<tr class="separator:a6db3e2de613348d7fb28e26b288cb80a"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a540a187054e143d404a4ddd8f0c3dda9"><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html#a540a187054e143d404a4ddd8f0c3dda9">getComponentIndex</a> () const </td></tr>
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<tr class="memdesc:a540a187054e143d404a4ddd8f0c3dda9"><td class="mdescLeft"> </td><td class="mdescRight">The component index of the vertex the iterator is currently at. <a href="#a540a187054e143d404a4ddd8f0c3dda9">More...</a><br /></td></tr>
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<tr class="separator:a540a187054e143d404a4ddd8f0c3dda9"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:af74adfda6c19dbe1ddcf15339daa834a"><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html#af74adfda6c19dbe1ddcf15339daa834a">getVertexIndex</a> () const </td></tr>
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<tr class="memdesc:af74adfda6c19dbe1ddcf15339daa834a"><td class="mdescLeft"> </td><td class="mdescRight">The vertex index of the vertex the iterator is currently at. <a href="#af74adfda6c19dbe1ddcf15339daa834a">More...</a><br /></td></tr>
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<tr class="memitem:afa14565649421758be3d65ca32f8c77c"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="classgeos_1_1geom_1_1LineString.html">geom::LineString</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html#afa14565649421758be3d65ca32f8c77c">getLine</a> () const </td></tr>
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<tr class="memdesc:afa14565649421758be3d65ca32f8c77c"><td class="mdescLeft"> </td><td class="mdescRight">Gets the <a class="el" href="classgeos_1_1geom_1_1LineString.html">geom::LineString</a> component the iterator is current at. <a href="#afa14565649421758be3d65ca32f8c77c">More...</a><br /></td></tr>
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<tr class="memitem:ad4fa921b57685e846277c1fdc10017f8"><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_1linearref_1_1LinearIterator.html#ad4fa921b57685e846277c1fdc10017f8">getSegmentStart</a> () const </td></tr>
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<tr class="memdesc:ad4fa921b57685e846277c1fdc10017f8"><td class="mdescLeft"> </td><td class="mdescRight">Gets the first <a class="el" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates. ">geom::Coordinate</a> of the current segment. (the coordinate of the current vertex). <a href="#ad4fa921b57685e846277c1fdc10017f8">More...</a><br /></td></tr>
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<tr class="separator:ad4fa921b57685e846277c1fdc10017f8"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a90a909bbb22f34ebe2d260684cd3e89b"><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_1linearref_1_1LinearIterator.html#a90a909bbb22f34ebe2d260684cd3e89b">getSegmentEnd</a> () const </td></tr>
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<tr class="memdesc:a90a909bbb22f34ebe2d260684cd3e89b"><td class="mdescLeft"> </td><td class="mdescRight">Gets the second <a class="el" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates. ">geom::Coordinate</a> of the current segment. (the coordinate of the next vertex). If the iterator is at the end of a line, <code>null</code> is returned. <a href="#a90a909bbb22f34ebe2d260684cd3e89b">More...</a><br /></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:a1866f7614d1dd934321d4804eb34c7ea"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html#a1866f7614d1dd934321d4804eb34c7ea">loadCurrentLine</a> ()</td></tr>
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<tr class="memitem:a061849f52d864ff577d5276346a711a3"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html#a061849f52d864ff577d5276346a711a3">LinearIterator</a> (const <a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html">LinearIterator</a> &other)=delete</td></tr>
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<tr class="separator:a061849f52d864ff577d5276346a711a3"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ad12a463234c4db7576178b491a58054a"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html">LinearIterator</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html#ad12a463234c4db7576178b491a58054a">operator=</a> (const <a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html">LinearIterator</a> &rhs)=delete</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-static-methods"></a>
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Static Private Member Functions</h2></td></tr>
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<tr class="memitem:a6770d7d44d312b7bc5d38294e577571d"><td class="memItemLeft" align="right" valign="top">static size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html#a6770d7d44d312b7bc5d38294e577571d">segmentEndVertexIndex</a> (const <a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a> &loc)</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:a80a5765bf1d727fae7d675ed1451ac36"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="classgeos_1_1geom_1_1LineString.html">geom::LineString</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html#a80a5765bf1d727fae7d675ed1451ac36">currentLine</a></td></tr>
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<tr class="memitem:ae8471c2444655e2233bf383ec57cc7cd"><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html#ae8471c2444655e2233bf383ec57cc7cd">vertexIndex</a></td></tr>
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<tr class="memitem:ae050428011dfe6f609b108e7193a63f9"><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html#ae050428011dfe6f609b108e7193a63f9">componentIndex</a></td></tr>
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<tr class="memitem:a2138e21b499134f0b72184e26b36c0d0"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html#a2138e21b499134f0b72184e26b36c0d0">linear</a></td></tr>
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<tr class="memitem:aed6ac2df6ce216691a769a33955865da"><td class="memItemLeft" align="right" valign="top">const size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html#aed6ac2df6ce216691a769a33955865da">numLines</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>An iterator over the components and coordinates of a linear geometry (LineString or MultiLineString). </p>
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<p>The standard usage pattern for a <a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html" title="An iterator over the components and coordinates of a linear geometry (LineString or MultiLineString)...">LinearIterator</a> is:</p>
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<div class="fragment"><div class="line"><span class="keywordflow">for</span> (<a class="code" href="classgeos_1_1linearref_1_1LinearIterator.html#a632426abb87d5f3cc4b6c5fb23da7932">LinearIterator</a> it = <span class="keyword">new</span> <a class="code" href="classgeos_1_1linearref_1_1LinearIterator.html#a632426abb87d5f3cc4b6c5fb23da7932">LinearIterator</a>(...); it.hasNext(); it.next()) {</div><div class="line"> ...</div><div class="line"> <span class="keywordtype">int</span> ci = it.getComponentIndex(); <span class="comment">// for example</span></div><div class="line"> <span class="keywordtype">int</span> vi = it.getVertexIndex(); <span class="comment">// for example</span></div><div class="line"> ...</div><div class="line">}</div></div><!-- fragment --><dl class="section version"><dt>Version</dt><dd>1.7 </dd></dl>
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<p>Definition at line <a class="el" href="LinearIterator_8h_source.html#l00050">50</a> of file <a class="el" href="LinearIterator_8h_source.html">LinearIterator.h</a>.</p>
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</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<td class="memname">geos::linearref::LinearIterator::LinearIterator </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>Creates an iterator initialized to the start of a linear Geometry. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<td class="memname">geos::linearref::LinearIterator::LinearIterator </td>
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<td class="paramtype">const <a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a> & </td>
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<p>Creates an iterator starting at a <a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html" title="Represents a location along a LineString or MultiLineString. ">LinearLocation</a> on a linear <a class="el" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory. ">geom::Geometry</a>. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">linear</td><td>the linear geometry to iterate over </td></tr>
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<td>(</td>
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<p>Creates an iterator starting at a component and vertex in a linear <a class="el" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory. ">geom::Geometry</a>. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">componentIndex</td><td>the component to start at </td></tr>
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<tr><td class="paramname">vertexIndex</td><td>the vertex to start at </td></tr>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html">LinearIterator</a> & </td>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">size_t geos::linearref::LinearIterator::getComponentIndex </td>
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<p>The component index of the vertex the iterator is currently at. </p>
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<dl class="section return"><dt>Returns</dt><dd>the current component index </dd></dl>
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<p>Gets the <a class="el" href="classgeos_1_1geom_1_1LineString.html">geom::LineString</a> component the iterator is current at. </p>
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<dl class="section return"><dt>Returns</dt><dd>a linestring </dd></dl>
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<td class="memname"><a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> geos::linearref::LinearIterator::getSegmentEnd </td>
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<p>Gets the second <a class="el" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates. ">geom::Coordinate</a> of the current segment. (the coordinate of the next vertex). If the iterator is at the end of a line, <code>null</code> is returned. </p>
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<dl class="section return"><dt>Returns</dt><dd>a Coordinate or <code>null</code> </dd></dl>
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<td class="memname"><a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> geos::linearref::LinearIterator::getSegmentStart </td>
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<p>Gets the first <a class="el" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates. ">geom::Coordinate</a> of the current segment. (the coordinate of the current vertex). </p>
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<dl class="section return"><dt>Returns</dt><dd>a Coordinate </dd></dl>
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<td class="memname">size_t geos::linearref::LinearIterator::getVertexIndex </td>
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<p>The vertex index of the vertex the iterator is currently at. </p>
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<dl class="section return"><dt>Returns</dt><dd>the current vertex index </dd></dl>
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<p>Tests whether there are any vertices left to iterator over. </p>
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<dl class="section return"><dt>Returns</dt><dd><code>true</code> if there are more vertices to scan </dd></dl>
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<p>Checks whether the iterator cursor is pointing to the endpoint of a component <a class="el" href="classgeos_1_1geom_1_1LineString.html">geom::LineString</a>. </p>
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<dl class="section return"><dt>Returns</dt><dd><code>true</code> if the iterator is at an endpoint </dd></dl>
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<td class="memname">void geos::linearref::LinearIterator::loadCurrentLine </td>
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<p>Invariant: currentLine <> null if the iterator is pointing at a valid coordinate</p>
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<dl class="exception"><dt>Exceptions</dt><dd>
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<td class="memname">void geos::linearref::LinearIterator::next </td>
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<p>Moves the iterator ahead to the next vertex and (possibly) linear component. </p>
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<td class="memname"><a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html">LinearIterator</a>& geos::linearref::LinearIterator::operator= </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="classgeos_1_1linearref_1_1LinearIterator.html">LinearIterator</a> & </td>
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<td class="paramname"><em>rhs</em></td><td>)</td>
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<td class="memname">static size_t geos::linearref::LinearIterator::segmentEndVertexIndex </td>
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<h2 class="groupheader">Member Data Documentation</h2>
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<p>Definition at line <a class="el" href="LinearIterator_8h_source.html#l00138">138</a> of file <a class="el" href="LinearIterator_8h_source.html">LinearIterator.h</a>.</p>
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<td class="memname">const <a class="el" href="classgeos_1_1geom_1_1LineString.html">geom::LineString</a>* geos::linearref::LinearIterator::currentLine</td>
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<p>Definition at line <a class="el" href="LinearIterator_8h_source.html#l00136">136</a> of file <a class="el" href="LinearIterator_8h_source.html">LinearIterator.h</a>.</p>
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<p>Definition at line <a class="el" href="LinearIterator_8h_source.html#l00139">139</a> of file <a class="el" href="LinearIterator_8h_source.html">LinearIterator.h</a>.</p>
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<p>Definition at line <a class="el" href="LinearIterator_8h_source.html#l00140">140</a> of file <a class="el" href="LinearIterator_8h_source.html">LinearIterator.h</a>.</p>
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<td class="memname">size_t geos::linearref::LinearIterator::vertexIndex</td>
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<span class="mlabels"><span class="mlabel">private</span></span> </td>
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<p>Definition at line <a class="el" href="LinearIterator_8h_source.html#l00137">137</a> of file <a class="el" href="LinearIterator_8h_source.html">LinearIterator.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="LinearIterator_8h_source.html">LinearIterator.h</a></li>
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</a> 1.8.11
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