00001 /********************************************************************** 00002 * $Id: BoundaryNodeRule.h 2809 2009-12-06 01:05:24Z mloskot $ 00003 * 00004 * GEOS - Geometry Engine Open Source 00005 * http://geos.refractions.net 00006 * 00007 * Copyright (C) 2009 Sandro Santilli <strk@keybit.net> 00008 * 00009 * This is free software; you can redistribute and/or modify it under 00010 * the terms of the GNU Lesser General Public Licence as published 00011 * by the Free Software Foundation. 00012 * See the COPYING file for more information. 00013 * 00014 ********************************************************************** 00015 * 00016 * Last port: algorithm/BoundaryNodeRule.java rev 1.4 (JTS-1.10) 00017 * 00018 **********************************************************************/ 00019 00020 #ifndef GEOS_ALGORITHM_BOUNDARYNODERULE_H 00021 #define GEOS_ALGORITHM_BOUNDARYNODERULE_H 00022 00023 // Forward declarations 00024 // ... 00025 00026 namespace geos { 00027 namespace algorithm { // geos::algorithm 00028 00029 00049 class BoundaryNodeRule { 00050 00051 public: 00052 00053 // virtual classes should always have a virtual destructor.. 00054 virtual ~BoundaryNodeRule() {} 00055 00066 virtual bool isInBoundary(int boundaryCount) const=0; 00067 00074 static const BoundaryNodeRule& MOD2_BOUNDARY_RULE; 00075 00081 static const BoundaryNodeRule& ENDPOINT_BOUNDARY_RULE; 00082 00088 static const BoundaryNodeRule& MULTIVALENT_ENDPOINT_BOUNDARY_RULE; 00089 00095 static const BoundaryNodeRule& MONOVALENT_ENDPOINT_BOUNDARY_RULE; 00096 00103 static const BoundaryNodeRule& OGC_SFS_BOUNDARY_RULE; 00104 00105 }; 00106 00107 } // namespace geos::algorithm 00108 } // namespace geos 00109 00110 #endif // GEOS_ALGORITHM_BOUNDARYNODERULE_H 00111