GEOS 3.2.2
SimpleNestedRingTester.h
00001 /**********************************************************************
00002  * $Id: SimpleNestedRingTester.h 2572 2009-06-08 22:10:55Z strk $
00003  *
00004  * GEOS - Geometry Engine Open Source
00005  * http://geos.refractions.net
00006  *
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: operation/valid/SimpleNestedRingTester.java rev. 1.14 (JTS-1.10)
00018  *
00019  **********************************************************************/
00020 
00021 #ifndef GEOS_OP_SIMPLENESTEDRINGTESTER_H
00022 #define GEOS_OP_SIMPLENESTEDRINGTESTER_H
00023 
00024 #include <geos/export.h>
00025 
00026 #include <vector>
00027 #include <cstddef>
00028 
00029 // Forward declarations
00030 namespace geos {
00031         namespace geom {
00032                 class Coordinate;
00033                 class LinearRing;
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 
00044 using namespace std;
00045 
00052 class GEOS_DLL SimpleNestedRingTester {
00053 private:
00054         geomgraph::GeometryGraph *graph;  // used to find non-node vertices
00055         std::vector<geom::LinearRing*> rings;
00056         geom::Coordinate *nestedPt;
00057 public:
00058         SimpleNestedRingTester(geomgraph::GeometryGraph *newGraph)
00059                 :
00060                 graph(newGraph),
00061                 rings(),
00062                 nestedPt(NULL)
00063         {}
00064 
00065         ~SimpleNestedRingTester() {
00066         }
00067 
00068         void add(geom::LinearRing *ring) {
00069                 rings.push_back(ring);
00070         }
00071 
00072         /*
00073          * Be aware that the returned Coordinate (if != NULL)
00074          * will point to storage owned by one of the LinearRing
00075          * previously added. If you destroy them, this
00076          * will point to an invalid memory address.
00077          */
00078         geom::Coordinate *getNestedPoint() {
00079                 return nestedPt;
00080         }
00081 
00082         bool isNonNested();
00083 };
00084 
00085 
00086 } // namespace geos.operation.valid
00087 } // namespace geos.operation
00088 } // namespace geos
00089 
00090 #endif // GEOS_OP_SIMPLENESTEDRINGTESTER_H
00091 
00092 /**********************************************************************
00093  * $Log$
00094  * Revision 1.1  2006/03/20 16:57:44  strk
00095  * spatialindex.h and opValid.h headers split
00096  *
00097  **********************************************************************/
00098