00001 /********************************************************************** 00002 * $Id: UniqueCoordinateArrayFilter.h 2786 2009-12-03 19:57:24Z mloskot $ 00003 * 00004 * GEOS - Geometry Engine Open Source 00005 * http://geos.refractions.net 00006 * 00007 * Copyright (C) 2001-2002 Vivid Solutions Inc. 00008 * Copyright (C) 2006 Refractions Research Inc. 00009 * 00010 * This is free software; you can redistribute and/or modify it under 00011 * the terms of the GNU Lesser General Public Licence as published 00012 * by the Free Software Foundation. 00013 * See the COPYING file for more information. 00014 * 00015 **********************************************************************/ 00016 00017 #ifndef GEOS_UTIL_UNIQUECOORDINATEARRAYFILTER_H 00018 #define GEOS_UTIL_UNIQUECOORDINATEARRAYFILTER_H 00019 00020 #include <geos/export.h> 00021 #include <cassert> 00022 #include <set> 00023 #include <vector> 00024 00025 #include <geos/geom/CoordinateFilter.h> 00026 #include <geos/geom/CoordinateSequence.h> 00027 #include <geos/geom/Coordinate.h> 00028 00029 namespace geos { 00030 namespace util { // geos::util 00031 00032 /* 00033 * A CoordinateFilter that fills a vector of Coordinate const pointers. 00034 * The set of coordinates contains no duplicate points. 00035 * 00036 * Last port: util/UniqueCoordinateArrayFilter.java rev. 1.17 00037 */ 00038 class GEOS_DLL UniqueCoordinateArrayFilter: public geom::CoordinateFilter 00039 { 00040 public: 00046 UniqueCoordinateArrayFilter(geom::Coordinate::ConstVect &target) 00047 : pts(target) 00048 {} 00049 00056 virtual ~UniqueCoordinateArrayFilter() {} 00057 00063 virtual void filter_ro(const geom::Coordinate *coord) 00064 { 00065 if ( uniqPts.insert(coord).second ) 00066 { 00067 pts.push_back(coord); 00068 } 00069 } 00070 00071 private: 00072 geom::Coordinate::ConstVect &pts; // target set reference 00073 geom::Coordinate::ConstSet uniqPts; // unique points set 00074 00075 // Declare type as noncopyable 00076 UniqueCoordinateArrayFilter(const UniqueCoordinateArrayFilter& other); 00077 UniqueCoordinateArrayFilter& operator=(const UniqueCoordinateArrayFilter& rhs); 00078 }; 00079 00080 } // namespace geos::util 00081 } // namespace geos 00082 00083 #endif // GEOS_UTIL_UNIQUECOORDINATEARRAYFILTER_H 00084 00085 /********************************************************************** 00086 * $Log$ 00087 * Revision 1.4 2006/06/19 23:33:03 strk 00088 * Don't *require* CoordinateFilters to define both read-only and read-write methods. 00089 * 00090 * Revision 1.3 2006/06/12 10:10:39 strk 00091 * Fixed getGeometryN() to take size_t rather then int, changed unsigned int parameters to size_t. 00092 * 00093 * Revision 1.2 2006/04/10 09:21:23 mloskot 00094 * Added new test for UniqueCoordinateArrayFilter class. Small fixes related to signed/unsigned comparison. 00095 * 00096 * Revision 1.1 2006/03/09 16:46:49 strk 00097 * geos::geom namespace definition, first pass at headers split 00098 * 00099 **********************************************************************/