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<h1>ScaledNoder.h</h1> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/**********************************************************************</span>
<a name="l00002"></a>00002 <span class="comment"> * $Id: ScaledNoder.h 2778 2009-12-03 19:44:00Z 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) 2006 Refractions Research Inc.</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: noding/ScaledNoder.java rev. 1.3 (JTS-1.7.1)</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_NODING_SCALEDNODER_H</span>
<a name="l00021"></a>00021 <span class="preprocessor"></span><span class="preprocessor">#define GEOS_NODING_SCALEDNODER_H</span>
<a name="l00022"></a>00022 <span class="preprocessor"></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <geos/export.h></span>
<a name="l00024"></a>00024
<a name="l00025"></a>00025 <span class="preprocessor">#include <cassert></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <vector></span>
<a name="l00027"></a>00027
<a name="l00028"></a>00028 <span class="preprocessor">#include <geos/inline.h></span>
<a name="l00029"></a>00029 <span class="preprocessor">#include <geos/noding/Noder.h></span> <span class="comment">// for inheritance</span>
<a name="l00030"></a>00030 <span class="comment">//#include <geos/geom/CoordinateFilter.h> // for inheritance</span>
<a name="l00031"></a>00031 <span class="preprocessor">#include <geos/util.h></span>
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="comment">// Forward declarations</span>
<a name="l00034"></a>00034 <span class="keyword">namespace </span>geos {
<a name="l00035"></a>00035 <span class="keyword">namespace </span>geom {
<a name="l00036"></a>00036 <span class="keyword">class </span>Coordinate;
<a name="l00037"></a>00037 <span class="keyword">class </span>CoordinateSequence;
<a name="l00038"></a>00038 }
<a name="l00039"></a>00039 <span class="keyword">namespace </span>noding {
<a name="l00040"></a>00040 <span class="keyword">class </span>SegmentString;
<a name="l00041"></a>00041 }
<a name="l00042"></a>00042 }
<a name="l00043"></a>00043
<a name="l00044"></a>00044 <span class="keyword">namespace </span>geos {
<a name="l00045"></a>00045 <span class="keyword">namespace </span>noding { <span class="comment">// geos.noding</span>
<a name="l00046"></a>00046
<a name="l00057"></a><a class="code" href="classgeos_1_1noding_1_1ScaledNoder.html">00057</a> <span class="keyword">class </span>GEOS_DLL <a class="code" href="classgeos_1_1noding_1_1ScaledNoder.html" title="Wraps a Noder and transforms its input into the integer domain.">ScaledNoder</a> : <span class="keyword">public</span> <a class="code" href="classgeos_1_1noding_1_1Noder.html" title="Computes all intersections between segments in a set of SegmentString.">Noder</a> { <span class="comment">// , public geom::CoordinateFilter { // implements Noder</span>
<a name="l00058"></a>00058
<a name="l00059"></a>00059 <span class="keyword">public</span>:
<a name="l00060"></a>00060
<a name="l00061"></a>00061 <span class="keywordtype">bool</span> isIntegerPrecision() { <span class="keywordflow">return</span> (scaleFactor == 1.0); }
<a name="l00062"></a>00062
<a name="l00063"></a>00063 <a class="code" href="classgeos_1_1noding_1_1ScaledNoder.html" title="Wraps a Noder and transforms its input into the integer domain.">ScaledNoder</a>(<a class="code" href="classgeos_1_1noding_1_1Noder.html" title="Computes all intersections between segments in a set of SegmentString.">Noder</a>& n, <span class="keywordtype">double</span> nScaleFactor,
<a name="l00064"></a>00064 <span class="keywordtype">double</span> nOffsetX=0.0, <span class="keywordtype">double</span> nOffsetY=0.0)
<a name="l00065"></a>00065 :
<a name="l00066"></a>00066 noder(n),
<a name="l00067"></a>00067 scaleFactor(nScaleFactor),
<a name="l00068"></a>00068 offsetX(nOffsetX),
<a name="l00069"></a>00069 offsetY(nOffsetY),
<a name="l00070"></a>00070 isScaled(nScaleFactor!=1.0)
<a name="l00071"></a>00071 {}
<a name="l00072"></a>00072
<a name="l00073"></a>00073 ~<a class="code" href="classgeos_1_1noding_1_1ScaledNoder.html" title="Wraps a Noder and transforms its input into the integer domain.">ScaledNoder</a>();
<a name="l00074"></a>00074
<a name="l00075"></a>00075 std::vector<SegmentString*>* getNodedSubstrings() <span class="keyword">const</span>;
<a name="l00076"></a>00076
<a name="l00077"></a>00077 <span class="keywordtype">void</span> computeNodes(std::vector<SegmentString*>* inputSegStr);
<a name="l00078"></a>00078
<a name="l00079"></a>00079 <span class="comment">//void filter(Coordinate& c);</span>
<a name="l00080"></a>00080
<a name="l00081"></a>00081 <span class="keywordtype">void</span> filter_ro(<span class="keyword">const</span> <a class="code" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates.">geom::Coordinate</a>* c)
<a name="l00082"></a>00082 {
<a name="l00083"></a>00083 ::geos::ignore_unused_variable_warning(c);
<a name="l00084"></a>00084 assert(0);
<a name="l00085"></a>00085 }
<a name="l00086"></a>00086
<a name="l00087"></a>00087 <span class="keywordtype">void</span> filter_rw(<a class="code" href="classgeos_1_1geom_1_1Coordinate.html" title="Coordinate is the lightweight class used to store coordinates.">geom::Coordinate</a>* c) <span class="keyword">const</span>;
<a name="l00088"></a>00088
<a name="l00089"></a>00089 <span class="keyword">private</span>:
<a name="l00090"></a>00090
<a name="l00091"></a>00091 <a class="code" href="classgeos_1_1noding_1_1Noder.html" title="Computes all intersections between segments in a set of SegmentString.">Noder</a>& noder;
<a name="l00092"></a>00092
<a name="l00093"></a>00093 <span class="keywordtype">double</span> scaleFactor;
<a name="l00094"></a>00094
<a name="l00095"></a>00095 <span class="keywordtype">double</span> offsetX;
<a name="l00096"></a>00096
<a name="l00097"></a>00097 <span class="keywordtype">double</span> offsetY;
<a name="l00098"></a>00098
<a name="l00099"></a>00099 <span class="keywordtype">bool</span> isScaled;
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <span class="keywordtype">void</span> rescale(std::vector<SegmentString*>& segStrings) <span class="keyword">const</span>;
<a name="l00102"></a>00102
<a name="l00103"></a>00103 <span class="keywordtype">void</span> scale(std::vector<SegmentString*>& segStrings) <span class="keyword">const</span>;
<a name="l00104"></a>00104
<a name="l00105"></a>00105 <span class="keyword">class </span>Scaler;
<a name="l00106"></a>00106
<a name="l00107"></a>00107 <span class="keyword">class </span>ReScaler;
<a name="l00108"></a>00108
<a name="l00109"></a>00109 <span class="keyword">friend</span> <span class="keyword">class </span>ScaledNoder::Scaler;
<a name="l00110"></a>00110
<a name="l00111"></a>00111 <span class="keyword">friend</span> <span class="keyword">class </span>ScaledNoder::ReScaler;
<a name="l00112"></a>00112
<a name="l00113"></a>00113 <span class="keyword">mutable</span> std::vector<geom::CoordinateSequence*> newCoordSeq;
<a name="l00114"></a>00114
<a name="l00115"></a>00115 <span class="comment">// Declare type as noncopyable</span>
<a name="l00116"></a>00116 <a class="code" href="classgeos_1_1noding_1_1ScaledNoder.html" title="Wraps a Noder and transforms its input into the integer domain.">ScaledNoder</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1noding_1_1ScaledNoder.html" title="Wraps a Noder and transforms its input into the integer domain.">ScaledNoder</a>& other);
<a name="l00117"></a>00117 <a class="code" href="classgeos_1_1noding_1_1ScaledNoder.html" title="Wraps a Noder and transforms its input into the integer domain.">ScaledNoder</a>& operator=(<span class="keyword">const</span> <a class="code" href="classgeos_1_1noding_1_1ScaledNoder.html" title="Wraps a Noder and transforms its input into the integer domain.">ScaledNoder</a>& rhs);
<a name="l00118"></a>00118 };
<a name="l00119"></a>00119
<a name="l00120"></a>00120 } <span class="comment">// namespace geos.noding</span>
<a name="l00121"></a>00121 } <span class="comment">// namespace geos</span>
<a name="l00122"></a>00122
<a name="l00123"></a>00123
<a name="l00124"></a>00124 <span class="comment">//#ifdef GEOS_INLINE</span>
<a name="l00125"></a>00125 <span class="comment">//# include "geos/noding/ScaledNoder.inl"</span>
<a name="l00126"></a>00126 <span class="comment">//#endif</span>
<a name="l00127"></a>00127
<a name="l00128"></a>00128 <span class="preprocessor">#endif // GEOS_NODING_SCALEDNODER_H</span>
<a name="l00129"></a>00129 <span class="preprocessor"></span>
<a name="l00130"></a>00130 <span class="comment">/**********************************************************************</span>
<a name="l00131"></a>00131 <span class="comment"> * $Log$</span>
<a name="l00132"></a>00132 <span class="comment"> * Revision 1.8 2006/06/19 23:33:03 strk</span>
<a name="l00133"></a>00133 <span class="comment"> * Don't *require* CoordinateFilters to define both read-only and read-write methods.</span>
<a name="l00134"></a>00134 <span class="comment"> *</span>
<a name="l00135"></a>00135 <span class="comment"> * Revision 1.7 2006/05/04 06:36:00 strk</span>
<a name="l00136"></a>00136 <span class="comment"> * Extended definition to take new CoordinateSequence tracking into account</span>
<a name="l00137"></a>00137 <span class="comment"> *</span>
<a name="l00138"></a>00138 <span class="comment"> * Revision 1.6 2006/05/03 15:04:33 strk</span>
<a name="l00139"></a>00139 <span class="comment"> * removed reduntant port info</span>
<a name="l00140"></a>00140 <span class="comment"> *</span>
<a name="l00141"></a>00141 <span class="comment"> * Revision 1.5 2006/05/03 15:00:42 strk</span>
<a name="l00142"></a>00142 <span class="comment"> * Fixed scale() function to remove repeated points *after* rounding. Added brief doxygen class description.</span>
<a name="l00143"></a>00143 <span class="comment"> *</span>
<a name="l00144"></a>00144 <span class="comment"> * Revision 1.4 2006/05/03 09:14:22 strk</span>
<a name="l00145"></a>00145 <span class="comment"> * * source/operation/buffer/OffsetCurveSetBuilder.cpp: used auto_ptr to protect leaks of CoordinateSequence</span>
<a name="l00146"></a>00146 <span class="comment"> * * source/noding/ScaledNoder.cpp, source/headers/geos/noding/ScaledNoder.h: ported JTS bugfix in scale method.</span>
<a name="l00147"></a>00147 <span class="comment"> *</span>
<a name="l00148"></a>00148 <span class="comment"> * Revision 1.3 2006/03/24 09:52:41 strk</span>
<a name="l00149"></a>00149 <span class="comment"> * USE_INLINE => GEOS_INLINE</span>
<a name="l00150"></a>00150 <span class="comment"> *</span>
<a name="l00151"></a>00151 <span class="comment"> * Revision 1.2 2006/03/13 21:19:51 strk</span>
<a name="l00152"></a>00152 <span class="comment"> * Fixed bug in ScaledNoder scaling mechanism (hugly code, due to CoordinateSequence visitor pattern design). Tests are still failing so this possibly needs some other fix. Streamlined includes by implementation file.</span>
<a name="l00153"></a>00153 <span class="comment"> *</span>
<a name="l00154"></a>00154 <span class="comment"> * Revision 1.1 2006/03/09 16:46:49 strk</span>
<a name="l00155"></a>00155 <span class="comment"> * geos::geom namespace definition, first pass at headers split</span>
<a name="l00156"></a>00156 <span class="comment"> *</span>
<a name="l00157"></a>00157 <span class="comment"> **********************************************************************/</span>
<a name="l00158"></a>00158
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