00001 /********************************************************************** 00002 * $Id: SingleInteriorIntersectionFinder.h 2778 2009-12-03 19:44:00Z mloskot $ 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_NODING_SINGLEINTERIORINTERSECTIONFINDER_H 00017 #define GEOS_NODING_SINGLEINTERIORINTERSECTIONFINDER_H 00018 00019 #include <geos/noding/SegmentIntersector.h> // for inheritance 00020 #include <geos/geom/Coordinate.h> // for composition 00021 00022 #include <vector> 00023 00024 // Forward declarations 00025 namespace geos { 00026 namespace algorithm { 00027 class LineIntersector; 00028 } 00029 namespace noding { 00030 class SegmentString; 00031 } 00032 } 00033 00034 namespace geos { 00035 namespace noding { // geos.noding 00036 00044 class SingleInteriorIntersectionFinder: public SegmentIntersector 00045 { 00046 00047 public: 00048 00055 SingleInteriorIntersectionFinder(algorithm::LineIntersector& newLi) 00056 : 00057 li(newLi), 00058 interiorIntersection(geom::Coordinate::getNull()) 00059 { 00060 } 00061 00067 bool hasIntersection() const 00068 { 00069 return !interiorIntersection.isNull(); 00070 } 00071 00078 const geom::Coordinate& getInteriorIntersection() const 00079 { 00080 return interiorIntersection; 00081 } 00082 00088 const std::vector<geom::Coordinate>& getIntersectionSegments() const 00089 { 00090 return intSegments; 00091 } 00092 00102 void processIntersections( 00103 SegmentString* e0, int segIndex0, 00104 SegmentString* e1, int segIndex1); 00105 00106 bool isDone() const 00107 { 00108 return !interiorIntersection.isNull(); 00109 } 00110 00111 private: 00112 algorithm::LineIntersector& li; 00113 geom::Coordinate interiorIntersection; 00114 std::vector<geom::Coordinate> intSegments; 00115 00116 // Declare type as noncopyable 00117 SingleInteriorIntersectionFinder(const SingleInteriorIntersectionFinder& other); 00118 SingleInteriorIntersectionFinder& operator=(const SingleInteriorIntersectionFinder& rhs); 00119 }; 00120 00121 } // namespace geos.noding 00122 } // namespace geos 00123 00124 #endif // GEOS_NODING_SINGLEINTERIORINTERSECTIONFINDER_H 00125 00126 /********************************************************************** 00127 * $Log$ 00128 **********************************************************************/