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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 
00028 // Forward declarations
00029 namespace geos {
00030         namespace geom {
00031                 class Coordinate;
00032                 class LinearRing;
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 GEOS_DLL SimpleNestedRingTester {
00050 private:
00051         geomgraph::GeometryGraph *graph;  // used to find non-node vertices
00052         std::vector<geom::LinearRing*> rings;
00053         geom::Coordinate *nestedPt;
00054 public:
00055         SimpleNestedRingTester(geomgraph::GeometryGraph *newGraph)
00056                 :
00057                 graph(newGraph),
00058                 rings(),
00059                 nestedPt(NULL)
00060         {}
00061 
00062         ~SimpleNestedRingTester() {
00063         }
00064 
00065         void add(geom::LinearRing *ring) {
00066                 rings.push_back(ring);
00067         }
00068 
00069         /*
00070          * Be aware that the returned Coordinate (if != NULL)
00071          * will point to storage owned by one of the LinearRing
00072          * previously added. If you destroy them, this
00073          * will point to an invalid memory address.
00074          */
00075         geom::Coordinate *getNestedPoint() {
00076                 return nestedPt;
00077         }
00078 
00079         bool isNonNested();
00080 };
00081 
00082 
00083 } // namespace geos.operation.valid
00084 } // namespace geos.operation
00085 } // namespace geos
00086 
00087 #endif // GEOS_OP_SIMPLENESTEDRINGTESTER_H
00088 
00089 /**********************************************************************
00090  * $Log$
00091  * Revision 1.1  2006/03/20 16:57:44  strk
00092  * spatialindex.h and opValid.h headers split
00093  *
00094  **********************************************************************/
00095 

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