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) 2011 Sandro Santilli <strk@keybit.net> 00007 * Copyright (C) 2005-2006 Refractions Research Inc. 00008 * Copyright (C) 2001-2002 Vivid Solutions 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 * Last port: geomgraph/GraphComponent.java r428 (JTS-1.12+) 00018 * 00019 **********************************************************************/ 00020 00021 00022 #ifndef GEOS_GEOMGRAPH_GRAPHCOMPONENT_H 00023 #define GEOS_GEOMGRAPH_GRAPHCOMPONENT_H 00024 00025 #include <geos/export.h> 00026 #include <geos/inline.h> 00027 00028 #include <geos/geomgraph/Label.h> 00029 00030 // Forward declarations 00031 namespace geos { 00032 namespace geom { 00033 class IntersectionMatrix; 00034 } 00035 } 00036 00037 namespace geos { 00038 namespace geomgraph { // geos.geomgraph 00039 00040 00047 class GEOS_DLL GraphComponent { 00048 public: 00049 GraphComponent(); 00050 00051 /* 00052 * GraphComponent copies the given Label. 00053 */ 00054 GraphComponent(const Label& newLabel); 00055 virtual ~GraphComponent(); 00056 00057 Label& getLabel() { return label; } 00058 const Label& getLabel() const { return label; } 00059 void setLabel(const Label& newLabel) { label = newLabel; } 00060 00061 virtual void setInResult(bool isInResult) { isInResultVar=isInResult; } 00062 virtual bool isInResult() const { return isInResultVar; } 00063 virtual void setCovered(bool isCovered); 00064 virtual bool isCovered() const { return isCoveredVar; } 00065 virtual bool isCoveredSet() const { return isCoveredSetVar; } 00066 virtual bool isVisited() const { return isVisitedVar; } 00067 virtual void setVisited(bool isVisited) { isVisitedVar = isVisited; } 00068 virtual bool isIsolated() const=0; 00069 virtual void updateIM(geom::IntersectionMatrix& im); 00070 protected: 00071 Label label; 00072 virtual void computeIM(geom::IntersectionMatrix& im)=0; 00073 private: 00074 bool isInResultVar; 00075 bool isCoveredVar; 00076 bool isCoveredSetVar; 00077 bool isVisitedVar; 00078 }; 00079 00080 } // namespace geos.geomgraph 00081 } // namespace geos 00082 00083 #endif // ifndef GEOS_GEOMGRAPH_GRAPHCOMPONENT_H