GEOS
3.3.6
|
00001 /********************************************************************** 00002 * $Id: CoordinateSequenceFilter.h 3255 2011-03-01 17:56:10Z 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: geom/CoordinateSequenceFilter.java rev. 1.3 (JTS-1.9) 00017 * 00018 **********************************************************************/ 00019 00020 #ifndef GEOS_GEOM_COORDINATESEQUENCEFILTER_H 00021 #define GEOS_GEOM_COORDINATESEQUENCEFILTER_H 00022 00023 #include <geos/export.h> 00024 #include <geos/inline.h> 00025 00026 #include <cassert> 00027 00028 // Forward declarations 00029 namespace geos { 00030 namespace geom { 00031 class CoordinateSequence; 00032 } 00033 } 00034 00035 namespace geos { 00036 namespace geom { // geos::geom 00037 00059 class GEOS_DLL CoordinateSequenceFilter { 00060 00061 public: 00062 00063 virtual ~CoordinateSequenceFilter() {} 00064 00072 virtual void filter_rw(CoordinateSequence& /*seq*/, std::size_t /*i*/) 00073 { assert(0); } 00074 00082 virtual void filter_ro(const CoordinateSequence& /*seq*/, std::size_t /*i*/) 00083 { assert(0); } 00084 00092 virtual bool isDone() const = 0; 00093 00094 00106 virtual bool isGeometryChanged() const = 0; 00107 00108 }; 00109 00110 } // namespace geos::geom 00111 } // namespace geos 00112 00113 00114 #endif // ndef GEOS_GEOM_COORDINATESEQUENCEFILTER_H 00115