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# Subgraph.h

    00001 /**********************************************************************
    00002  * $Id: Subgraph.h 2784 2009-12-03 19:52:22Z mloskot $
    00003  *
    00004  * GEOS - Geometry Engine Open Source
    00005  * http://geos.refractions.net
    00006  *
    00007  * Copyright (C) 2001-2002 Vivid Solutions Inc.
    00008  * Copyright (C) 2005-2006 Refractions Research 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 #ifndef GEOS_PLANARGRAPH_SUBGRAPH_H
    00018 #define GEOS_PLANARGRAPH_SUBGRAPH_H
    00019
    00020 #include <geos/export.h>
    00021 #include <geos/planargraph/NodeMap.h> // for composition
    00022
    00023 #include <vector>
    00024
    00025 // Forward declarations
    00026 namespace geos {
    00027         namespace planargraph {
    00028                 class PlanarGraph;
    00029                 class DirectedEdge;
    00030                 class Edge;
    00031         }
    00032 }
    00033
    00034 namespace geos {
    00035 namespace planargraph { // geos.planargraph
    00036
    00038 //
    00049 class GEOS_DLL Subgraph
    00050 {
    00051 public:
    00057         Subgraph(PlanarGraph &parent)
    00058                 :
    00059                 parentGraph(parent)
    00060                 {}
    00061
    00068         PlanarGraph& getParent() const { return parentGraph; }
    00069
    00083         std::pair<std::set<Edge*>::iterator, bool> add(Edge *e);
    00084
    00093         std::vector<const DirectedEdge*>::iterator getDirEdgeBegin() {
    00094                 return dirEdges.begin();
    00095         }
    00096
    00097
    00106         std::set<Edge*>::iterator edgeBegin() { return edges.begin(); }
    00107         std::set<Edge*>::iterator edgeEnd() { return edges.end(); }
    00108
    00113         NodeMap::container::iterator nodeBegin() {
    00114                 return nodeMap.begin();
    00115         }
    00116         NodeMap::container::const_iterator nodeEnd() const {
    00117                 return nodeMap.end();
    00118         }
    00119         NodeMap::container::iterator nodeEnd() {
    00120                 return nodeMap.end();
    00121         }
    00122         NodeMap::container::const_iterator nodeBegin() const {
    00123                 return nodeMap.begin();
    00124         }
    00125
    00131         bool contains(Edge *e) { return (edges.find(e) != edges.end()); }
    00132
    00133 protected:
    00134
    00135         PlanarGraph &parentGraph;
    00136         std::set<Edge*> edges;
    00137         std::vector<const DirectedEdge*> dirEdges;
    00138         NodeMap nodeMap;
    00139
    00140     // Declare type as noncopyable
    00141     Subgraph(const Subgraph& other);
    00142     Subgraph& operator=(const Subgraph& rhs);
    00143 };
    00144
    00145
    00146 } // namespace geos::planargraph
    00147 } // namespace geos
    00148
    00149 #endif // GEOS_PLANARGRAPH_SUBGRAPH_H
    00150
    00151 /**********************************************************************
    00152  * $Log$
    00153  * Revision 1.1  2006/03/21 21:42:54  strk
    00154  * planargraph.h header split, planargraph:: classes renamed to match JTS symbols
    00155  *
    00156  **********************************************************************/
    00157