741 lines
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741 lines
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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_1LocationIndexedLine.html">LocationIndexedLine</a></li> </ul>
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<a href="#pub-methods">Public Member Functions</a> |
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<div class="title">geos::linearref::LocationIndexedLine Class Reference</div> </div>
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<p>Supports linear referencing along a linear <a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a> using <a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocations</a> as the index.
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<a href="classgeos_1_1linearref_1_1LocationIndexedLine.html#details">More...</a></p>
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<p><code>#include <<a class="el" href="LocationIndexedLine_8h_source.html">LocationIndexedLine.h</a>></code></p>
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Collaboration diagram for geos::linearref::LocationIndexedLine:</div>
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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:aafb7b2747c28e27780f7e89aa71fe528"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LocationIndexedLine.html#aafb7b2747c28e27780f7e89aa71fe528">LocationIndexedLine</a> (const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a> *p_linearGeom)</td></tr>
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<tr class="memdesc:aafb7b2747c28e27780f7e89aa71fe528"><td class="mdescLeft"> </td><td class="mdescRight">Constructs an object which allows linear referencing along a given linear <a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a>. <a href="#aafb7b2747c28e27780f7e89aa71fe528">More...</a><br /></td></tr>
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<tr class="separator:aafb7b2747c28e27780f7e89aa71fe528"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a697807a0d1851ca60707991fdf343499"><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_1LocationIndexedLine.html#a697807a0d1851ca60707991fdf343499">extractPoint</a> (const <a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a> &index) const </td></tr>
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<tr class="memdesc:a697807a0d1851ca60707991fdf343499"><td class="mdescLeft"> </td><td class="mdescRight">Computes the <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">Coordinate</a> for the point on the line at the given index. <a href="#a697807a0d1851ca60707991fdf343499">More...</a><br /></td></tr>
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<tr class="separator:a697807a0d1851ca60707991fdf343499"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:abbb5af4008a39c36cde036accf71bb2d"><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_1LocationIndexedLine.html#abbb5af4008a39c36cde036accf71bb2d">extractPoint</a> (const <a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a> &index, double offsetDistance) const </td></tr>
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<tr class="memdesc:abbb5af4008a39c36cde036accf71bb2d"><td class="mdescLeft"> </td><td class="mdescRight">Computes the <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">Coordinate</a> for the point on the line at the given index, offset by the given distance. <a href="#abbb5af4008a39c36cde036accf71bb2d">More...</a><br /></td></tr>
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<tr class="separator:abbb5af4008a39c36cde036accf71bb2d"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a1d5406c9af8e126396052603af1eed30"><td class="memItemLeft" align="right" valign="top">std::unique_ptr< <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_1LocationIndexedLine.html#a1d5406c9af8e126396052603af1eed30">extractLine</a> (const <a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a> &startIndex, const <a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a> &endIndex) const </td></tr>
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<tr class="memdesc:a1d5406c9af8e126396052603af1eed30"><td class="mdescLeft"> </td><td class="mdescRight">Computes the <a class="el" href="classgeos_1_1geom_1_1LineString.html">LineString</a> for the interval on the line between the given indices. <a href="#a1d5406c9af8e126396052603af1eed30">More...</a><br /></td></tr>
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<tr class="separator:a1d5406c9af8e126396052603af1eed30"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:af36058eb4bf3b9a9dd17df4165666f7e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LocationIndexedLine.html#af36058eb4bf3b9a9dd17df4165666f7e">indexOf</a> (const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> &pt) const </td></tr>
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<tr class="memdesc:af36058eb4bf3b9a9dd17df4165666f7e"><td class="mdescLeft"> </td><td class="mdescRight">Computes the index for a given point on the line. <a href="#af36058eb4bf3b9a9dd17df4165666f7e">More...</a><br /></td></tr>
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<tr class="separator:af36058eb4bf3b9a9dd17df4165666f7e"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a99e001504849e601400a5bac60697fe5"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LocationIndexedLine.html#a99e001504849e601400a5bac60697fe5">indexOfAfter</a> (const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> &pt, const <a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a> &minIndex) const </td></tr>
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<tr class="memdesc:a99e001504849e601400a5bac60697fe5"><td class="mdescLeft"> </td><td class="mdescRight">Finds the index for a point on the line which is greater than the given index. <a href="#a99e001504849e601400a5bac60697fe5">More...</a><br /></td></tr>
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<tr class="separator:a99e001504849e601400a5bac60697fe5"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a90296472f4dc4a9b6f0d8178b7cb4632"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LocationIndexedLine.html#a90296472f4dc4a9b6f0d8178b7cb4632">indicesOf</a> (const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a> *subLine) const </td></tr>
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<tr class="memdesc:a90296472f4dc4a9b6f0d8178b7cb4632"><td class="mdescLeft"> </td><td class="mdescRight">Computes the indices for a subline of the line. <a href="#a90296472f4dc4a9b6f0d8178b7cb4632">More...</a><br /></td></tr>
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<tr class="separator:a90296472f4dc4a9b6f0d8178b7cb4632"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a8250d38dfdcdd4d2d1c9864e8971ffb5"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LocationIndexedLine.html#a8250d38dfdcdd4d2d1c9864e8971ffb5">project</a> (const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> &pt) const </td></tr>
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<tr class="memdesc:a8250d38dfdcdd4d2d1c9864e8971ffb5"><td class="mdescLeft"> </td><td class="mdescRight">Computes the index for the closest point on the line to the given point. <a href="#a8250d38dfdcdd4d2d1c9864e8971ffb5">More...</a><br /></td></tr>
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<tr class="separator:a8250d38dfdcdd4d2d1c9864e8971ffb5"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:af358d7a08139a04628707228ca3c3765"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LocationIndexedLine.html#af358d7a08139a04628707228ca3c3765">getStartIndex</a> () const </td></tr>
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<tr class="memdesc:af358d7a08139a04628707228ca3c3765"><td class="mdescLeft"> </td><td class="mdescRight">Returns the index of the start of the line. <a href="#af358d7a08139a04628707228ca3c3765">More...</a><br /></td></tr>
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<tr class="separator:af358d7a08139a04628707228ca3c3765"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ab84bfb78f1dcec952c2feb44032b8819"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LocationIndexedLine.html#ab84bfb78f1dcec952c2feb44032b8819">getEndIndex</a> () const </td></tr>
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<tr class="memdesc:ab84bfb78f1dcec952c2feb44032b8819"><td class="mdescLeft"> </td><td class="mdescRight">Returns the index of the end of the line. <a href="#ab84bfb78f1dcec952c2feb44032b8819">More...</a><br /></td></tr>
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<tr class="separator:ab84bfb78f1dcec952c2feb44032b8819"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a5daedcb95e0f28750959b63995919896"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LocationIndexedLine.html#a5daedcb95e0f28750959b63995919896">isValidIndex</a> (const <a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a> &index) const </td></tr>
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<tr class="memdesc:a5daedcb95e0f28750959b63995919896"><td class="mdescLeft"> </td><td class="mdescRight">Tests whether an index is in the valid index range for the line. <a href="#a5daedcb95e0f28750959b63995919896">More...</a><br /></td></tr>
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<tr class="separator:a5daedcb95e0f28750959b63995919896"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a5766846f815b9af53875048ee95b65a2"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LocationIndexedLine.html#a5766846f815b9af53875048ee95b65a2">clampIndex</a> (const <a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a> &index) const </td></tr>
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<tr class="memdesc:a5766846f815b9af53875048ee95b65a2"><td class="mdescLeft"> </td><td class="mdescRight">Computes a valid index for this line by clamping the given index to the valid range of index values. <a href="#a5766846f815b9af53875048ee95b65a2">More...</a><br /></td></tr>
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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:ad73c0acee7fe10fc70edc8f500b4f474"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgeos_1_1linearref_1_1LocationIndexedLine.html#ad73c0acee7fe10fc70edc8f500b4f474">checkGeometryType</a> ()</td></tr>
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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:ae2469af7617ee8ce2cb57fd8156a830c"><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_1LocationIndexedLine.html#ae2469af7617ee8ce2cb57fd8156a830c">linearGeom</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>Supports linear referencing along a linear <a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a> using <a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocations</a> as the index. </p>
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<p>Definition at line <a class="el" href="LocationIndexedLine_8h_source.html#l00039">39</a> of file <a class="el" href="LocationIndexedLine_8h_source.html">LocationIndexedLine.h</a>.</p>
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</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<td class="memname">geos::linearref::LocationIndexedLine::LocationIndexedLine </td>
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<td>(</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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<td class="paramname"><em>p_linearGeom</em></td><td>)</td>
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<p>Constructs an object which allows linear referencing along a given linear <a class="el" href="classgeos_1_1geom_1_1Geometry.html">Geometry</a>. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">p_linearGeom</td><td>the linear geometry to reference along </td></tr>
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<p>Definition at line <a class="el" href="LocationIndexedLine_8h_source.html#l00060">60</a> of file <a class="el" href="LocationIndexedLine_8h_source.html">LocationIndexedLine.h</a>.</p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">void geos::linearref::LocationIndexedLine::checkGeometryType </td>
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<p>Definition at line <a class="el" href="LocationIndexedLine_8h_source.html#l00044">44</a> of file <a class="el" href="LocationIndexedLine_8h_source.html">LocationIndexedLine.h</a>.</p>
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<p>References <a class="el" href="Geometry_8h_source.html#l00356">geos::geom::Geometry::isLineal()</a>.</p>
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<td class="memname"><a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a> geos::linearref::LocationIndexedLine::clampIndex </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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<td class="paramname"><em>index</em></td><td>)</td>
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<p>Computes a valid index for this line by clamping the given index to the valid range of index values. </p>
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<dl class="section return"><dt>Returns</dt><dd>a valid index value </dd></dl>
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<p>Definition at line <a class="el" href="LocationIndexedLine_8h_source.html#l00268">268</a> of file <a class="el" href="LocationIndexedLine_8h_source.html">LocationIndexedLine.h</a>.</p>
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<p>References <a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html#ac1de5d7e436b7249e57c2227c566eafa">geos::linearref::LinearLocation::clamp()</a>.</p>
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<td class="memname">std::unique_ptr<<a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>> geos::linearref::LocationIndexedLine::extractLine </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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<td class="paramtype">const <a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a> & </td>
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<p>Computes the <a class="el" href="classgeos_1_1geom_1_1LineString.html">LineString</a> for the interval on the line between the given indices. </p>
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<p>If the endIndex lies before the startIndex, the computed geometry is reversed.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">startIndex</td><td>the index of the start of the interval </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>the linear interval between the indices </dd></dl>
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<p>Definition at line <a class="el" href="LocationIndexedLine_8h_source.html#l00128">128</a> of file <a class="el" href="LocationIndexedLine_8h_source.html">LocationIndexedLine.h</a>.</p>
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<p>References <a class="el" href="classgeos_1_1linearref_1_1ExtractLineByLocation.html#a3b7be088b267db30899dbdf4696407ca">geos::linearref::ExtractLineByLocation::extract()</a>.</p>
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<td class="memname"><a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> geos::linearref::LocationIndexedLine::extractPoint </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>Computes the <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">Coordinate</a> for the point on the line at the given index. </p>
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<p>If the index is out of range the first or last point on the line will be returned. The Z-ordinate of the computed point will be interpolated from the Z-ordinates of the line segment containing it, if they exist.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<dl class="section return"><dt>Returns</dt><dd>the Coordinate at the given index </dd></dl>
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<p>Definition at line <a class="el" href="LocationIndexedLine_8h_source.html#l00080">80</a> of file <a class="el" href="LocationIndexedLine_8h_source.html">LocationIndexedLine.h</a>.</p>
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<p>References <a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html#a50df7142413e9e0f71c08a17e44fb53a">geos::linearref::LinearLocation::getCoordinate()</a>.</p>
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<td class="memname"><a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> geos::linearref::LocationIndexedLine::extractPoint </td>
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<p>Computes the <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">Coordinate</a> for the point on the line at the given index, offset by the given distance. </p>
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<p>If the index is out of range the first or last point on the line will be returned. The computed point is offset to the left of the line if the offset distance is positive, to the right if negative.</p>
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<p>The Z-ordinate of the computed point will be interpolated from the Z-ordinates of the line segment containing it, if they exist.</p>
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<dl class="section return"><dt>Returns</dt><dd>the Coordinate at the given index </dd></dl>
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<p>Definition at line <a class="el" href="LocationIndexedLine_8h_source.html#l00105">105</a> of file <a class="el" href="LocationIndexedLine_8h_source.html">LocationIndexedLine.h</a>.</p>
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<p>References <a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html#af3303b29a06005f9aec33f98f13ba06a">geos::linearref::LinearLocation::getSegment()</a>, and <a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html#ab2ecfec59697bdd38274173e5fb847e4">geos::linearref::LinearLocation::getSegmentFraction()</a>.</p>
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<td class="memname"><a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a> geos::linearref::LocationIndexedLine::getEndIndex </td>
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<p>Returns the index of the end of the line. </p>
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<p>Definition at line <a class="el" href="LocationIndexedLine_8h_source.html#l00241">241</a> of file <a class="el" href="LocationIndexedLine_8h_source.html">LocationIndexedLine.h</a>.</p>
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<p>References <a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html#a017a305a4c32502bb87ab61cd569fbc7">geos::linearref::LinearLocation::getEndLocation()</a>.</p>
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<td class="memname"><a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a> geos::linearref::LocationIndexedLine::getStartIndex </td>
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<p>Returns the index of the start of the line. </p>
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<dl class="section return"><dt>Returns</dt><dd>the start index </dd></dl>
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<p>Definition at line <a class="el" href="LocationIndexedLine_8h_source.html#l00229">229</a> of file <a class="el" href="LocationIndexedLine_8h_source.html">LocationIndexedLine.h</a>.</p>
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|
||
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||
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|
||
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<p>Computes the index for a given point on the line. </p>
|
||
|
<p>The supplied point does not <em>necessarily</em> have to lie precisely on the line, but if it is far from the line the accuracy and performance of this function is not guaranteed. Use <a class="el" href="classgeos_1_1linearref_1_1LocationIndexedLine.html#a8250d38dfdcdd4d2d1c9864e8971ffb5">project</a> to compute a guaranteed result for points which may be far from the line.</p>
|
||
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|
||
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|
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<tr><td class="paramname">pt</td><td>a point on the line </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>the index of the point</dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="classgeos_1_1linearref_1_1LocationIndexedLine.html#a8250d38dfdcdd4d2d1c9864e8971ffb5" title="Computes the index for the closest point on the line to the given point. ">project</a> </dd></dl>
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<p>Definition at line <a class="el" href="LocationIndexedLine_8h_source.html#l00151">151</a> of file <a class="el" href="LocationIndexedLine_8h_source.html">LocationIndexedLine.h</a>.</p>
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<p>References <a class="el" href="classgeos_1_1linearref_1_1LocationIndexOfPoint.html#a02a74fcef91895e29a08ba509950e95f">geos::linearref::LocationIndexOfPoint::indexOf()</a>.</p>
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<td class="memname"><a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a> geos::linearref::LocationIndexedLine::indexOfAfter </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> & </td>
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<p>Finds the index for a point on the line which is greater than the given index. </p>
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<p>If no such index exists, returns <code>minIndex</code>. This method can be used to determine all indexes for a point which occurs more than once on a non-simple line. It can also be used to disambiguate cases where the given point lies slightly off the line and is equidistant from two different points on the line.</p>
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<p>The supplied point does not <em>necessarily</em> have to lie precisely on the line, but if it is far from the line the accuracy and performance of this function is not guaranteed. Use <a class="el" href="classgeos_1_1linearref_1_1LocationIndexedLine.html#a8250d38dfdcdd4d2d1c9864e8971ffb5">project</a> to compute a guaranteed result for points which may be far from the line.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<dl class="section return"><dt>Returns</dt><dd>the index of the point greater than the given minimum index</dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="classgeos_1_1linearref_1_1LocationIndexedLine.html#a8250d38dfdcdd4d2d1c9864e8971ffb5" title="Computes the index for the closest point on the line to the given point. ">project</a> </dd></dl>
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<p>Definition at line <a class="el" href="LocationIndexedLine_8h_source.html#l00181">181</a> of file <a class="el" href="LocationIndexedLine_8h_source.html">LocationIndexedLine.h</a>.</p>
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<p>References <a class="el" href="classgeos_1_1linearref_1_1LocationIndexOfPoint.html#ad6a5f8fbb298ead569b3befa6d99c159">geos::linearref::LocationIndexOfPoint::indexOfAfter()</a>.</p>
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<td class="memname"><a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a>* geos::linearref::LocationIndexedLine::indicesOf </td>
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<td>(</td>
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<p>Computes the indices for a subline of the line. </p>
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<p>(The subline must <b>conform</b> to the line; that is, all vertices in the subline (except possibly the first and last) must be vertices of the line and occur in the same order).</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<dl class="section return"><dt>Returns</dt><dd>a pair of indices for the start and end of the subline. </dd></dl>
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<p>Definition at line <a class="el" href="LocationIndexedLine_8h_source.html#l00199">199</a> of file <a class="el" href="LocationIndexedLine_8h_source.html">LocationIndexedLine.h</a>.</p>
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<p>References <a class="el" href="classgeos_1_1linearref_1_1LocationIndexOfLine.html#a38bd354832f0cc07c37e805526b11384">geos::linearref::LocationIndexOfLine::indicesOf()</a>.</p>
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<td class="memname">bool geos::linearref::LocationIndexedLine::isValidIndex </td>
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<td>(</td>
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<td class="paramname"><em>index</em></td><td>)</td>
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<td> const</td>
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<p>Tests whether an index is in the valid index range for the line. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">index</td><td>the index to test </td></tr>
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<dl class="section return"><dt>Returns</dt><dd><code>true</code> if the index is in the valid range </dd></dl>
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<p>Definition at line <a class="el" href="LocationIndexedLine_8h_source.html#l00254">254</a> of file <a class="el" href="LocationIndexedLine_8h_source.html">LocationIndexedLine.h</a>.</p>
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<p>References <a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html#a0a7f6a53225266e50cd5e9f74aacd975">geos::linearref::LinearLocation::isValid()</a>.</p>
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<td class="memname"><a class="el" href="classgeos_1_1linearref_1_1LinearLocation.html">LinearLocation</a> geos::linearref::LocationIndexedLine::project </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="classgeos_1_1geom_1_1Coordinate.html">geom::Coordinate</a> & </td>
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<td class="paramname"><em>pt</em></td><td>)</td>
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<p>Computes the index for the closest point on the line to the given point. </p>
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<p>If more than one point has the closest distance the first one along the line is returned. (The point does not necessarily have to lie precisely on the line.)</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<dl class="section return"><dt>Returns</dt><dd>the index of the point </dd></dl>
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<p>Definition at line <a class="el" href="LocationIndexedLine_8h_source.html#l00217">217</a> of file <a class="el" href="LocationIndexedLine_8h_source.html">LocationIndexedLine.h</a>.</p>
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<p>References <a class="el" href="classgeos_1_1linearref_1_1LocationIndexOfPoint.html#a02a74fcef91895e29a08ba509950e95f">geos::linearref::LocationIndexOfPoint::indexOf()</a>.</p>
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<h2 class="groupheader">Member Data Documentation</h2>
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<td class="memname">const <a class="el" href="classgeos_1_1geom_1_1Geometry.html">geom::Geometry</a>* geos::linearref::LocationIndexedLine::linearGeom</td>
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<p>Definition at line <a class="el" href="LocationIndexedLine_8h_source.html#l00041">41</a> of file <a class="el" href="LocationIndexedLine_8h_source.html">LocationIndexedLine.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="LocationIndexedLine_8h_source.html">LocationIndexedLine.h</a></li>
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