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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.5"/> <title>OGR: OGRCoordinateTransformation Class Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td style="padding-left: 0.5em;"> <div id="projectname">OGR </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.5 --> <div id="navrow1" class="tabs"> <ul class="tablist"> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> <li class="current"><a href="annotated.html"><span>Classes</span></a></li> <li><a href="files.html"><span>Files</span></a></li> </ul> </div> <div id="navrow2" class="tabs2"> <ul class="tablist"> <li><a href="annotated.html"><span>Class List</span></a></li> <li><a href="hierarchy.html"><span>Class Hierarchy</span></a></li> <li><a href="functions.html"><span>Class Members</span></a></li> </ul> </div> </div><!-- top --> <div class="header"> <div class="summary"> <a href="#pub-methods">Public Member Functions</a> | <a href="#pub-static-methods">Static Public Member Functions</a> | <a href="classOGRCoordinateTransformation-members.html">List of all members</a> </div> <div class="headertitle"> <div class="title">OGRCoordinateTransformation Class Reference<span class="mlabels"><span class="mlabel">abstract</span></span></div> </div> </div><!--header--> <div class="contents"> <p><code>#include <<a class="el" href="ogr__spatialref_8h_source.html">ogr_spatialref.h</a>></code></p> <div class="dynheader"> Inheritance diagram for OGRCoordinateTransformation:</div> <div class="dyncontent"> <div class="center"> <img src="classOGRCoordinateTransformation.png" usemap="#OGRCoordinateTransformation_map" alt=""/> <map id="OGRCoordinateTransformation_map" name="OGRCoordinateTransformation_map"> <area href="classOGRProj4CT.html" alt="OGRProj4CT" shape="rect" coords="0,56,185,80"/> </map> </div></div> <table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a> Public Member Functions</h2></td></tr> <tr class="memitem:ae907bc626507aa49a5bcd55c82a8a5c5"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classOGRSpatialReference.html">OGRSpatialReference</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classOGRCoordinateTransformation.html#ae907bc626507aa49a5bcd55c82a8a5c5">GetSourceCS</a> ()=0</td></tr> <tr class="separator:ae907bc626507aa49a5bcd55c82a8a5c5"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ae56218b826d186a8b7dcaf63d9b14fdd"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classOGRSpatialReference.html">OGRSpatialReference</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classOGRCoordinateTransformation.html#ae56218b826d186a8b7dcaf63d9b14fdd">GetTargetCS</a> ()=0</td></tr> <tr class="separator:ae56218b826d186a8b7dcaf63d9b14fdd"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:abf141396940b4f7b1f8118ea025d569b"><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classOGRCoordinateTransformation.html#abf141396940b4f7b1f8118ea025d569b">Transform</a> (int nCount, double *x, double *y, double *z=NULL)=0</td></tr> <tr class="separator:abf141396940b4f7b1f8118ea025d569b"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:aa8cc3f483b85d633dc88d56bd44f3cd1"><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classOGRCoordinateTransformation.html#aa8cc3f483b85d633dc88d56bd44f3cd1">TransformEx</a> (int nCount, double *x, double *y, double *z=NULL, int *pabSuccess=NULL)=0</td></tr> <tr class="separator:aa8cc3f483b85d633dc88d56bd44f3cd1"><td class="memSeparator" colspan="2"> </td></tr> </table><table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a> Static Public Member Functions</h2></td></tr> <tr class="memitem:a547d9277bf137105815ffb65a604fbe4"><td class="memItemLeft" align="right" valign="top">static void </td><td class="memItemRight" valign="bottom"><a class="el" href="classOGRCoordinateTransformation.html#a547d9277bf137105815ffb65a604fbe4">DestroyCT</a> (<a class="el" href="classOGRCoordinateTransformation.html">OGRCoordinateTransformation</a> *poCT)</td></tr> <tr class="memdesc:a547d9277bf137105815ffb65a604fbe4"><td class="mdescLeft"> </td><td class="mdescRight"><a class="el" href="classOGRCoordinateTransformation.html">OGRCoordinateTransformation</a> destructor. <a href="#a547d9277bf137105815ffb65a604fbe4">More...</a><br/></td></tr> <tr class="separator:a547d9277bf137105815ffb65a604fbe4"><td class="memSeparator" colspan="2"> </td></tr> </table> <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> <div class="textblock"><p>Interface for transforming between coordinate systems.</p> <p>Currently, the only implementation within OGR is <a class="el" href="classOGRProj4CT.html">OGRProj4CT</a>, which requires the PROJ.4 library to be available at run-time.</p> <p>Also, see <a class="el" href="ogr__spatialref_8h.html#aae11bd08e45cdb2e71e1d9c31f1e550f">OGRCreateCoordinateTransformation()</a> for creating transformations. </p> </div><h2 class="groupheader">Member Function Documentation</h2> <a class="anchor" id="a547d9277bf137105815ffb65a604fbe4"></a> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">void OGRCoordinateTransformation::DestroyCT </td> <td>(</td> <td class="paramtype"><a class="el" href="classOGRCoordinateTransformation.html">OGRCoordinateTransformation</a> * </td> <td class="paramname"><em>poCT</em></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">static</span></span> </td> </tr> </table> </div><div class="memdoc"> <p><a class="el" href="classOGRCoordinateTransformation.html">OGRCoordinateTransformation</a> destructor. </p> <p>This function is the same as OGRCoordinateTransformation::~OGRCoordinateTransformation() and <a class="el" href="ogr__srs__api_8h.html#a3477f1077954050ea96c028333120082" title="OGRCoordinateTransformation destructor. ">OCTDestroyCoordinateTransformation()</a></p> <p>This static method will destroy a <a class="el" href="classOGRCoordinateTransformation.html">OGRCoordinateTransformation</a>. It is equivalent to calling delete on the object, but it ensures that the deallocation is properly executed within the OGR libraries heap on platforms where this can matter (win32).</p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">poCT</td><td>the object to delete</td></tr> </table> </dd> </dl> <dl class="section since"><dt>Since</dt><dd>GDAL 1.7.0 </dd></dl> </div> </div> <a class="anchor" id="ae907bc626507aa49a5bcd55c82a8a5c5"></a> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">virtual <a class="el" href="classOGRSpatialReference.html">OGRSpatialReference</a>* OGRCoordinateTransformation::GetSourceCS </td> <td>(</td> <td class="paramname"></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">pure virtual</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Fetch internal source coordinate system. </p> <p>Implemented in <a class="el" href="classOGRProj4CT.html#a140e7abd0cb99bf01c49b28f8f67d232">OGRProj4CT</a>.</p> </div> </div> <a class="anchor" id="ae56218b826d186a8b7dcaf63d9b14fdd"></a> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">virtual <a class="el" href="classOGRSpatialReference.html">OGRSpatialReference</a>* OGRCoordinateTransformation::GetTargetCS </td> <td>(</td> <td class="paramname"></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">pure virtual</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Fetch internal target coordinate system. </p> <p>Implemented in <a class="el" href="classOGRProj4CT.html#ac4da7b3bbcee52eec307e53f06e8849f">OGRProj4CT</a>.</p> <p>Referenced by <a class="el" href="classOGRPoint.html#a351482d4852285a214ac1d55ec046356">OGRPoint::transform()</a>, <a class="el" href="classOGRLineString.html#a75675b1f158fd1d5d35cc431227ed000">OGRLineString::transform()</a>, <a class="el" href="classOGRPolygon.html#aa974efb0dd2bdc7b62fa23dfdc4f8c72">OGRPolygon::transform()</a>, and <a class="el" href="classOGRGeometryCollection.html#a39e5d3d2fbfbfccd7cdf5275f0373816">OGRGeometryCollection::transform()</a>.</p> </div> </div> <a class="anchor" id="abf141396940b4f7b1f8118ea025d569b"></a> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">virtual int OGRCoordinateTransformation::Transform </td> <td>(</td> <td class="paramtype">int </td> <td class="paramname"><em>nCount</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">double * </td> <td class="paramname"><em>x</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">double * </td> <td class="paramname"><em>y</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">double * </td> <td class="paramname"><em>z</em> = <code>NULL</code> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">pure virtual</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Transform points from source to destination space.</p> <p>This method is the same as the C function OCTTransform().</p> <p>The method <a class="el" href="classOGRCoordinateTransformation.html#aa8cc3f483b85d633dc88d56bd44f3cd1">TransformEx()</a> allows extended success information to be captured indicating which points failed to transform.</p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">nCount</td><td>number of points to transform. </td></tr> <tr><td class="paramname">x</td><td>array of nCount X vertices, modified in place. </td></tr> <tr><td class="paramname">y</td><td>array of nCount Y vertices, modified in place. </td></tr> <tr><td class="paramname">z</td><td>array of nCount Z vertices, modified in place. </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>TRUE on success, or FALSE if some or all points fail to transform. </dd></dl> <p>Implemented in <a class="el" href="classOGRProj4CT.html#a7c776e95b808163647fd8f4d3bcdf17b">OGRProj4CT</a>.</p> <p>Referenced by <a class="el" href="classOGRPoint.html#a351482d4852285a214ac1d55ec046356">OGRPoint::transform()</a>.</p> </div> </div> <a class="anchor" id="aa8cc3f483b85d633dc88d56bd44f3cd1"></a> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">virtual int OGRCoordinateTransformation::TransformEx </td> <td>(</td> <td class="paramtype">int </td> <td class="paramname"><em>nCount</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">double * </td> <td class="paramname"><em>x</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">double * </td> <td class="paramname"><em>y</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">double * </td> <td class="paramname"><em>z</em> = <code>NULL</code>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int * </td> <td class="paramname"><em>pabSuccess</em> = <code>NULL</code> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">pure virtual</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Transform points from source to destination space.</p> <p>This method is the same as the C function OCTTransformEx().</p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">nCount</td><td>number of points to transform. </td></tr> <tr><td class="paramname">x</td><td>array of nCount X vertices, modified in place. </td></tr> <tr><td class="paramname">y</td><td>array of nCount Y vertices, modified in place. </td></tr> <tr><td class="paramname">z</td><td>array of nCount Z vertices, modified in place. </td></tr> <tr><td class="paramname">pabSuccess</td><td>array of per-point flags set to TRUE if that point transforms, or FALSE if it does not.</td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>TRUE if some or all points transform successfully, or FALSE if if none transform. </dd></dl> <p>Implemented in <a class="el" href="classOGRProj4CT.html#a59945ebfdd224662f6e837120212d34f">OGRProj4CT</a>.</p> <p>Referenced by <a class="el" href="classOGRLineString.html#a75675b1f158fd1d5d35cc431227ed000">OGRLineString::transform()</a>.</p> </div> </div> <hr/>The documentation for this class was generated from the following files:<ul> <li><a class="el" href="ogr__spatialref_8h_source.html">ogr_spatialref.h</a></li> <li>ogrct.cpp</li> </ul> </div><!-- contents --> <hr> Generated for GDAL by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.8.5. </body> </html>