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: operation/valid/IndexedNestedRingTester.java r399 (JTS-1.12) 00016 * 00017 **********************************************************************/ 00018 00019 #ifndef GEOS_OP_VALID_OFFSETCURVEVERTEXLIST_H 00020 #define GEOS_OP_VALID_OFFSETCURVEVERTEXLIST_H 00021 00022 #include <vector> // for composition 00023 00024 // Forward declarations 00025 namespace geos { 00026 namespace geom { 00027 //class Envelope; 00028 class Coordinate; 00029 class LinearRing; 00030 } 00031 namespace index { 00032 class SpatialIndex; 00033 } 00034 namespace geomgraph { 00035 class GeometryGraph; 00036 } 00037 } 00038 00039 namespace geos { 00040 namespace operation { // geos.operation 00041 namespace valid { // geos.operation.valid 00042 00049 class IndexedNestedRingTester 00050 { 00051 public: 00052 // @param newGraph : ownership retained by caller 00053 IndexedNestedRingTester(geomgraph::GeometryGraph* newGraph) 00054 : 00055 graph(newGraph), 00056 //totalEnv(0), 00057 index(0), 00058 nestedPt(0) 00059 { 00060 } 00061 00062 ~IndexedNestedRingTester(); 00063 00064 /* 00065 * Be aware that the returned Coordinate (if != NULL) 00066 * will point to storage owned by one of the LinearRing 00067 * previously added. If you destroy them, this 00068 * will point to an invalid memory address. 00069 */ 00070 const geom::Coordinate* getNestedPoint() const 00071 { 00072 return nestedPt; 00073 } 00074 00076 void add(const geom::LinearRing* ring) 00077 { 00078 rings.push_back(ring); 00079 } 00080 00081 bool isNonNested(); 00082 00083 private: 00084 00086 geomgraph::GeometryGraph* graph; 00087 00089 std::vector<const geom::LinearRing*> rings; 00090 00091 // CHECK: Owned by (seems unused)? 00092 //geom::Envelope* totalEnv; 00093 00094 // Owned by us (use auto_ptr ?) 00095 geos::index::SpatialIndex* index; // 'index' in JTS 00096 00097 // Externally owned, if not null 00098 const geom::Coordinate *nestedPt; 00099 00100 void buildIndex(); 00101 }; 00102 00103 } // namespace geos.operation.valid 00104 } // namespace geos.operation 00105 } // namespace geos 00106 00107 #endif // GEOS_OP_VALID_OFFSETCURVEVERTEXLIST_H