<!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"/> <title>GEOS: SnapOverlayOp.h Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="doxygen.css" rel="stylesheet" type="text/css"/> </head> <body> <!-- Generated by Doxygen 1.7.1 --> <div class="navigation" id="top"> <div 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><a href="namespaces.html"><span>Namespaces</span></a></li> <li><a href="annotated.html"><span>Classes</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul> </div> <div class="tabs2"> <ul class="tablist"> <li><a href="files.html"><span>File List</span></a></li> </ul> </div> <div class="header"> <div class="headertitle"> <h1>SnapOverlayOp.h</h1> </div> </div> <div class="contents"> <div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/**********************************************************************</span> <a name="l00002"></a>00002 <span class="comment"> * $Id: SnapOverlayOp.h 2809 2009-12-06 01:05:24Z mloskot $</span> <a name="l00003"></a>00003 <span class="comment"> *</span> <a name="l00004"></a>00004 <span class="comment"> * GEOS - Geometry Engine Open Source</span> <a name="l00005"></a>00005 <span class="comment"> * http://geos.refractions.net</span> <a name="l00006"></a>00006 <span class="comment"> *</span> <a name="l00007"></a>00007 <span class="comment"> * Copyright (C) 2009 Sandro Santilli <strk@keybit.net></span> <a name="l00008"></a>00008 <span class="comment"> *</span> <a name="l00009"></a>00009 <span class="comment"> * This is free software; you can redistribute and/or modify it under</span> <a name="l00010"></a>00010 <span class="comment"> * the terms of the GNU Lesser General Public Licence as published</span> <a name="l00011"></a>00011 <span class="comment"> * by the Free Software Foundation. </span> <a name="l00012"></a>00012 <span class="comment"> * See the COPYING file for more information.</span> <a name="l00013"></a>00013 <span class="comment"> *</span> <a name="l00014"></a>00014 <span class="comment"> ***********************************************************************</span> <a name="l00015"></a>00015 <span class="comment"> *</span> <a name="l00016"></a>00016 <span class="comment"> * Last port: operation/overlay/snap/SnapOverlayOp.java rev 1.4 (JTS-1.10)</span> <a name="l00017"></a>00017 <span class="comment"> *</span> <a name="l00018"></a>00018 <span class="comment"> **********************************************************************/</span> <a name="l00019"></a>00019 <a name="l00020"></a>00020 <span class="preprocessor">#ifndef GEOS_OP_OVERLAY_SNAP_SNAPOVERLAYOP_H</span> <a name="l00021"></a>00021 <span class="preprocessor"></span><span class="preprocessor">#define GEOS_OP_OVERLAY_SNAP_SNAPOVERLAYOP_H</span> <a name="l00022"></a>00022 <span class="preprocessor"></span> <a name="l00023"></a>00023 <span class="preprocessor">#include <geos/operation/overlay/OverlayOp.h></span> <span class="comment">// for enums </span> <a name="l00024"></a>00024 <span class="preprocessor">#include <geos/precision/CommonBitsRemover.h></span> <span class="comment">// for dtor visibility by auto_ptr</span> <a name="l00025"></a>00025 <a name="l00026"></a>00026 <span class="preprocessor">#include <memory></span> <span class="comment">// for auto_ptr</span> <a name="l00027"></a>00027 <a name="l00028"></a>00028 <span class="comment">// Forward declarations</span> <a name="l00029"></a>00029 <span class="keyword">namespace </span>geos { <a name="l00030"></a>00030 <span class="keyword">namespace </span>geom { <a name="l00031"></a>00031 <span class="keyword">class </span>Geometry; <a name="l00032"></a>00032 } <a name="l00033"></a>00033 } <a name="l00034"></a>00034 <a name="l00035"></a>00035 <span class="keyword">namespace </span>geos { <a name="l00036"></a>00036 <span class="keyword">namespace </span>operation { <span class="comment">// geos::operation</span> <a name="l00037"></a>00037 <span class="keyword">namespace </span>overlay { <span class="comment">// geos::operation::overlay</span> <a name="l00038"></a>00038 <span class="keyword">namespace </span>snap { <span class="comment">// geos::operation::overlay::snap</span> <a name="l00039"></a>00039 <a name="l00051"></a><a class="code" href="classgeos_1_1operation_1_1overlay_1_1snap_1_1SnapOverlayOp.html">00051</a> <span class="keyword">class </span>GEOS_DLL <a class="code" href="classgeos_1_1operation_1_1overlay_1_1snap_1_1SnapOverlayOp.html" title="Performs an overlay operation using snapping and enhanced precision to improve the robustness of the ...">SnapOverlayOp</a> <a name="l00052"></a>00052 { <a name="l00053"></a>00053 <a name="l00054"></a>00054 <span class="keyword">public</span>: <a name="l00055"></a>00055 <a name="l00056"></a>00056 <span class="keyword">static</span> std::auto_ptr<geom::Geometry> <a name="l00057"></a>00057 <a class="code" href="structgeos_1_1operation_1_1overlay_1_1overlayOp.html" title="OverlayOp::overlayOp Adapter for use with geom::BinaryOp.">overlayOp</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a>& g0, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a>& g1, <a name="l00058"></a>00058 <a class="code" href="classgeos_1_1operation_1_1overlay_1_1OverlayOp.html#a1f2552b975ce852f0b192dc00997b131" title="The spatial functions supported by this class.">OverlayOp::OpCode</a> opCode) <a name="l00059"></a>00059 { <a name="l00060"></a>00060 <a class="code" href="classgeos_1_1operation_1_1overlay_1_1snap_1_1SnapOverlayOp.html" title="Performs an overlay operation using snapping and enhanced precision to improve the robustness of the ...">SnapOverlayOp</a> op(g0, g1); <a name="l00061"></a>00061 <span class="keywordflow">return</span> op.getResultGeometry(opCode); <a name="l00062"></a>00062 } <a name="l00063"></a>00063 <a name="l00064"></a>00064 <span class="keyword">static</span> std::auto_ptr<geom::Geometry> <a name="l00065"></a>00065 intersection(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a>& g0, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a>& g1) <a name="l00066"></a>00066 { <a name="l00067"></a>00067 <span class="keywordflow">return</span> <a class="code" href="structgeos_1_1operation_1_1overlay_1_1overlayOp.html" title="OverlayOp::overlayOp Adapter for use with geom::BinaryOp.">overlayOp</a>(g0, g1, OverlayOp::opINTERSECTION); <a name="l00068"></a>00068 } <a name="l00069"></a>00069 <a name="l00070"></a>00070 <span class="keyword">static</span> std::auto_ptr<geom::Geometry> <a name="l00071"></a>00071 Union(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a>& g0, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a>& g1) <a name="l00072"></a>00072 { <a name="l00073"></a>00073 <span class="keywordflow">return</span> <a class="code" href="structgeos_1_1operation_1_1overlay_1_1overlayOp.html" title="OverlayOp::overlayOp Adapter for use with geom::BinaryOp.">overlayOp</a>(g0, g1, OverlayOp::opUNION); <a name="l00074"></a>00074 } <a name="l00075"></a>00075 <a name="l00076"></a>00076 <span class="keyword">static</span> std::auto_ptr<geom::Geometry> <a name="l00077"></a>00077 difference(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a>& g0, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a>& g1) <a name="l00078"></a>00078 { <a name="l00079"></a>00079 <span class="keywordflow">return</span> <a class="code" href="structgeos_1_1operation_1_1overlay_1_1overlayOp.html" title="OverlayOp::overlayOp Adapter for use with geom::BinaryOp.">overlayOp</a>(g0, g1, OverlayOp::opDIFFERENCE); <a name="l00080"></a>00080 } <a name="l00081"></a>00081 <a name="l00082"></a>00082 <span class="keyword">static</span> std::auto_ptr<geom::Geometry> <a name="l00083"></a>00083 symDifference(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a>& g0, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a>& g1) <a name="l00084"></a>00084 { <a name="l00085"></a>00085 <span class="keywordflow">return</span> <a class="code" href="structgeos_1_1operation_1_1overlay_1_1overlayOp.html" title="OverlayOp::overlayOp Adapter for use with geom::BinaryOp.">overlayOp</a>(g0, g1, OverlayOp::opSYMDIFFERENCE); <a name="l00086"></a>00086 } <a name="l00087"></a>00087 <a name="l00088"></a>00088 <a class="code" href="classgeos_1_1operation_1_1overlay_1_1snap_1_1SnapOverlayOp.html" title="Performs an overlay operation using snapping and enhanced precision to improve the robustness of the ...">SnapOverlayOp</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a>& g1, <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a>& g2) <a name="l00089"></a>00089 : <a name="l00090"></a>00090 geom0(g1), <a name="l00091"></a>00091 geom1(g2) <a name="l00092"></a>00092 { <a name="l00093"></a>00093 computeSnapTolerance(); <a name="l00094"></a>00094 } <a name="l00095"></a>00095 <a name="l00096"></a>00096 <a name="l00097"></a>00097 <span class="keyword">typedef</span> std::auto_ptr<geom::Geometry> GeomPtr; <a name="l00098"></a>00098 <a name="l00099"></a>00099 GeomPtr getResultGeometry(<a class="code" href="classgeos_1_1operation_1_1overlay_1_1OverlayOp.html#a1f2552b975ce852f0b192dc00997b131" title="The spatial functions supported by this class.">OverlayOp::OpCode</a> opCode); <a name="l00100"></a>00100 <a name="l00101"></a>00101 <span class="keyword">private</span>: <a name="l00102"></a>00102 <a name="l00103"></a>00103 <span class="keywordtype">void</span> computeSnapTolerance(); <a name="l00104"></a>00104 <a name="l00105"></a>00105 <span class="keyword">typedef</span> std::pair<GeomPtr, GeomPtr> GeomPtrPair; <a name="l00106"></a>00106 <a name="l00107"></a>00107 <span class="keywordtype">void</span> snap(GeomPtrPair& ret); <a name="l00108"></a>00108 <a name="l00109"></a>00109 <span class="keywordtype">void</span> removeCommonBits(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a>& geom0, <a name="l00110"></a>00110 <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a>& geom1, GeomPtrPair& ret); <a name="l00111"></a>00111 <a name="l00112"></a>00112 <span class="comment">// re-adds common bits to the given geom</span> <a name="l00113"></a>00113 <span class="keywordtype">void</span> prepareResult(<a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a>& geom); <a name="l00114"></a>00114 <a name="l00115"></a>00115 <a name="l00116"></a>00116 <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a>& geom0; <a name="l00117"></a>00117 <span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Geometry.html" title="Basic implementation of Geometry, constructed and destructed by GeometryFactory.">geom::Geometry</a>& geom1; <a name="l00118"></a>00118 <a name="l00119"></a>00119 <span class="keywordtype">double</span> snapTolerance; <a name="l00120"></a>00120 <a name="l00121"></a>00121 std::auto_ptr<precision::CommonBitsRemover> cbr; <a name="l00122"></a>00122 <a name="l00123"></a>00123 <span class="comment">// Declare type as noncopyable</span> <a name="l00124"></a>00124 <a class="code" href="classgeos_1_1operation_1_1overlay_1_1snap_1_1SnapOverlayOp.html" title="Performs an overlay operation using snapping and enhanced precision to improve the robustness of the ...">SnapOverlayOp</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1operation_1_1overlay_1_1snap_1_1SnapOverlayOp.html" title="Performs an overlay operation using snapping and enhanced precision to improve the robustness of the ...">SnapOverlayOp</a>& other); <a name="l00125"></a>00125 <a class="code" href="classgeos_1_1operation_1_1overlay_1_1snap_1_1SnapOverlayOp.html" title="Performs an overlay operation using snapping and enhanced precision to improve the robustness of the ...">SnapOverlayOp</a>& operator=(<span class="keyword">const</span> <a class="code" href="classgeos_1_1operation_1_1overlay_1_1snap_1_1SnapOverlayOp.html" title="Performs an overlay operation using snapping and enhanced precision to improve the robustness of the ...">SnapOverlayOp</a>& rhs); <a name="l00126"></a>00126 }; <a name="l00127"></a>00127 <a name="l00128"></a>00128 <a name="l00129"></a>00129 } <span class="comment">// namespace geos::operation::overlay::snap</span> <a name="l00130"></a>00130 } <span class="comment">// namespace geos::operation::overlay</span> <a name="l00131"></a>00131 } <span class="comment">// namespace geos::operation</span> <a name="l00132"></a>00132 } <span class="comment">// namespace geos</span> <a name="l00133"></a>00133 <a name="l00134"></a>00134 <span class="preprocessor">#endif // ndef GEOS_OP_OVERLAY_SNAP_SNAPOVERLAYOP_H</span> <a name="l00135"></a>00135 <span class="preprocessor"></span> <a name="l00136"></a>00136 <span class="comment">/**********************************************************************</span> <a name="l00137"></a>00137 <span class="comment"> * $Log$</span> <a name="l00138"></a>00138 <span class="comment"> **********************************************************************/</span> <a name="l00139"></a>00139 </pre></div></div> </div> <hr class="footer"/><address class="footer"><small>Generated on Thu Jul 22 2010 for GEOS by <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.1 </small></address> </body> </html>