GEOS 3.3.1
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00001 /********************************************************************** 00002 * $Id: SweepLineEvent.h 2556 2009-06-06 22:22:28Z strk $ 00003 * 00004 * GEOS - Geometry Engine Open Source 00005 * http://geos.refractions.net 00006 * 00007 * Copyright (C) 2006 Refractions Research Inc. 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 #ifndef GEOS_INDEX_SWEEPLINE_SWEEPLINEEVENT_H 00017 #define GEOS_INDEX_SWEEPLINE_SWEEPLINEEVENT_H 00018 00019 #include <geos/export.h> 00020 00021 // Forward declarations 00022 namespace geos { 00023 namespace index { 00024 namespace sweepline { 00025 class SweepLineInterval; 00026 } 00027 } 00028 } 00029 00030 namespace geos { 00031 namespace index { // geos.index 00032 namespace sweepline { // geos:index:sweepline 00033 00034 class GEOS_DLL SweepLineEvent { 00035 00036 public: 00037 00038 enum { 00039 INSERT_EVENT = 1, 00040 DELETE_EVENT 00041 }; 00042 00043 SweepLineEvent(double x, SweepLineEvent *newInsertEvent, 00044 SweepLineInterval *newSweepInt); 00045 00046 bool isInsert(); 00047 00048 bool isDelete(); 00049 00050 SweepLineEvent* getInsertEvent(); 00051 00052 int getDeleteEventIndex(); 00053 00054 void setDeleteEventIndex(int newDeleteEventIndex); 00055 00056 SweepLineInterval* getInterval(); 00057 00064 int compareTo(const SweepLineEvent *pe) const; 00065 00066 //int compareTo(void *o) const; 00067 00068 private: 00069 00070 double xValue; 00071 00072 int eventType; 00073 00075 SweepLineEvent *insertEvent; 00076 00077 int deleteEventIndex; 00078 00079 SweepLineInterval *sweepInt; 00080 00081 }; 00082 00083 // temp typedefs for backward compatibility 00084 //typedef SweepLineEvent indexSweepLineEvent; 00085 00086 struct GEOS_DLL SweepLineEventLessThen { 00087 bool operator() (const SweepLineEvent* first, const SweepLineEvent* second) const; 00088 }; 00089 00090 //bool isleLessThen(SweepLineEvent *first, SweepLineEvent *second); 00091 00092 00093 } // namespace geos:index:sweepline 00094 } // namespace geos:index 00095 } // namespace geos 00096 00097 #endif // GEOS_INDEX_SWEEPLINE_SWEEPLINEEVENT_H 00098 00099 /********************************************************************** 00100 * $Log$ 00101 * Revision 1.1 2006/03/21 10:01:30 strk 00102 * indexSweepline.h header split 00103 * 00104 **********************************************************************/ 00105