GEOS
3.4.2
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00001 /********************************************************************** 00002 * 00003 * GEOS - Geometry Engine Open Source 00004 * http://geos.osgeo.org 00005 * 00006 * Copyright (C) 2009 Sandro Santilli <strk@keybit.net> 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: geom/CoordinateSequenceFilter.java rev. 1.3 (JTS-1.9) 00016 * 00017 **********************************************************************/ 00018 00019 #ifndef GEOS_GEOM_COORDINATESEQUENCEFILTER_H 00020 #define GEOS_GEOM_COORDINATESEQUENCEFILTER_H 00021 00022 #include <geos/export.h> 00023 #include <geos/inline.h> 00024 00025 #include <cassert> 00026 00027 // Forward declarations 00028 namespace geos { 00029 namespace geom { 00030 class CoordinateSequence; 00031 } 00032 } 00033 00034 namespace geos { 00035 namespace geom { // geos::geom 00036 00058 class GEOS_DLL CoordinateSequenceFilter { 00059 00060 public: 00061 00062 virtual ~CoordinateSequenceFilter() {} 00063 00071 virtual void filter_rw(CoordinateSequence& /*seq*/, std::size_t /*i*/) 00072 { assert(0); } 00073 00081 virtual void filter_ro(const CoordinateSequence& /*seq*/, std::size_t /*i*/) 00082 { assert(0); } 00083 00091 virtual bool isDone() const = 0; 00092 00093 00105 virtual bool isGeometryChanged() const = 0; 00106 00107 }; 00108 00109 } // namespace geos::geom 00110 } // namespace geos 00111 00112 00113 #endif // ndef GEOS_GEOM_COORDINATESEQUENCEFILTER_H 00114