IteratedNoder.h

00001 /**********************************************************************
00002  *
00003  * GEOS - Geometry Engine Open Source
00004  * http://geos.osgeo.org
00005  *
00006  * Copyright (C) 2006      Refractions Research Inc.
00007  *
00008  * This is free software; you can redistribute and/or modify it under
00009  * the terms of the GNU Lesser General Public Licence as published
00010  * by the Free Software Foundation. 
00011  * See the COPYING file for more information.
00012  *
00013  **********************************************************************
00014  *
00015  * Last port: noding/IteratedNoder.java r591 (JTS-1.12+)
00016  *
00017  **********************************************************************/
00018 
00019 #ifndef GEOS_NODING_ITERATEDNODER_H
00020 #define GEOS_NODING_ITERATEDNODER_H
00021 
00022 #include <geos/export.h>
00023 
00024 #include <vector>
00025 #include <iostream>
00026 
00027 #include <geos/inline.h>
00028 
00029 #include <geos/algorithm/LineIntersector.h>
00030 #include <geos/noding/SegmentString.h> // due to inlines
00031 #include <geos/noding/Noder.h> // for inheritance
00032 
00033 // Forward declarations
00034 namespace geos {
00035         namespace geom {
00036                 class PrecisionModel;
00037         }
00038 }
00039 
00040 namespace geos {
00041 namespace noding { // geos::noding
00042 
00055 class GEOS_DLL IteratedNoder : public Noder { // implements Noder
00056 
00057 private:
00058         static const int MAX_ITER = 5;
00059 
00060 
00061         const geom::PrecisionModel *pm;
00062         algorithm::LineIntersector li;
00063         std::vector<SegmentString*>* nodedSegStrings;
00064         int maxIter;
00065 
00070         void node(std::vector<SegmentString*>* segStrings,
00071                         int *numInteriorIntersections);
00072 
00073 public:
00074 
00075         IteratedNoder(const geom::PrecisionModel *newPm)
00076                 :
00077                 pm(newPm),
00078                 li(pm),
00079                 maxIter(MAX_ITER)
00080         {
00081         }
00082 
00083         virtual ~IteratedNoder() {}
00084 
00094         void setMaximumIterations(int n) { maxIter = n; }
00095 
00096         std::vector<SegmentString*>* getNodedSubstrings() const {
00097                 return nodedSegStrings;
00098         }
00099  
00100 
00110         void computeNodes(std::vector<SegmentString*>* inputSegmentStrings); // throw(GEOSException);
00111 };
00112 
00113 } // namespace geos::noding
00114 } // namespace geos
00115 
00116 
00117 #endif // GEOS_NODING_ITERATEDNODER_H

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