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IndexedNestedRingTester.h

00001 /**********************************************************************
00002  * $Id: IndexedNestedRingTester.h 2809 2009-12-06 01:05:24Z mloskot $
00003  *
00004  * GEOS - Geometry Engine Open Source
00005  * http://geos.refractions.net
00006  *
00007  * Copyright (C) 2009 Sandro Santilli <strk@keybit.net>
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  * Last port: operation/valid/IndexedNestedRingTester.java rev. 1.1 (JTS-1.10)
00017  *
00018  **********************************************************************/
00019 
00020 #ifndef GEOS_OP_VALID_OFFSETCURVEVERTEXLIST_H
00021 #define GEOS_OP_VALID_OFFSETCURVEVERTEXLIST_H
00022 
00023 #include <vector> // for composition
00024 
00025 // Forward declarations
00026 namespace geos {
00027         namespace geom {
00028                 //class Envelope;
00029                 class Coordinate;
00030                 class LinearRing;
00031         }
00032         namespace index {
00033                 class SpatialIndex;
00034         }
00035         namespace geomgraph {
00036                 class GeometryGraph;
00037         }
00038 }
00039 
00040 namespace geos {
00041 namespace operation { // geos.operation
00042 namespace valid { // geos.operation.valid
00043 
00050 class IndexedNestedRingTester
00051 {
00052 public:
00053         // @param newGraph : ownership retained by caller
00054         IndexedNestedRingTester(geomgraph::GeometryGraph* newGraph)
00055                 :
00056                 graph(newGraph),
00057                 //totalEnv(0),
00058                 index(0),
00059                 nestedPt(0)
00060         {
00061         }
00062 
00063         ~IndexedNestedRingTester();
00064 
00065         /*
00066          * Be aware that the returned Coordinate (if != NULL)
00067          * will point to storage owned by one of the LinearRing
00068          * previously added. If you destroy them, this
00069          * will point to an invalid memory address.
00070          */
00071         const geom::Coordinate* getNestedPoint() const
00072         {
00073                 return nestedPt;
00074         }
00075 
00077         void add(const geom::LinearRing* ring)
00078         {
00079                 rings.push_back(ring);
00080         }
00081 
00082         bool isNonNested();
00083 
00084 private:
00085 
00087         geomgraph::GeometryGraph* graph; 
00088 
00090         std::vector<const geom::LinearRing*> rings;
00091 
00092         // CHECK: Owned by (seems unused)?
00093         //geom::Envelope* totalEnv; 
00094 
00095         // Owned by us (use auto_ptr ?)
00096         geos::index::SpatialIndex* index; // 'index' in JTS
00097 
00098         // Externally owned, if not null
00099         const geom::Coordinate *nestedPt; 
00100 
00101         void buildIndex();
00102 };
00103 
00104 } // namespace geos.operation.valid
00105 } // namespace geos.operation
00106 } // namespace geos
00107 
00108 #endif // GEOS_OP_VALID_OFFSETCURVEVERTEXLIST_H
00109 
00110 /**********************************************************************
00111  * $Log$
00112  **********************************************************************/
00113 

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