GEOS: Edge.h Source File

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planargraph/Edge.h
1 /**********************************************************************
2 *
3 * GEOS - Geometry Engine Open Source
4 * http://geos.osgeo.org
5 *
6 * Copyright (C) 2001-2002 Vivid Solutions Inc.
7 * Copyright (C) 2005-2006 Refractions Research Inc.
8 *
9 * This is free software; you can redistribute and/or modify it under
10 * the terms of the GNU Lesser General Public Licence as published
11 * by the Free Software Foundation.
12 * See the COPYING file for more information.
13 *
14 **********************************************************************/
15
16 #ifndef GEOS_PLANARGRAPH_EDGE_H
17 #define GEOS_PLANARGRAPH_EDGE_H
18
19 #include <geos/export.h>
20
21 #include <geos/planargraph/GraphComponent.h> // for inheritance
22
23 #include <vector> // for typedefs
24 #include <set> // for typedefs
25 #include <iosfwd> // ostream
26
27 #ifdef _MSC_VER
28 #pragma warning(push)
29 #pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
30 #endif
31
32 // Forward declarations
33 namespace geos {
34 namespace planargraph {
35 class DirectedEdgeStar;
36 class DirectedEdge;
37 class Edge;
38 class Node;
39 }
40 }
41
42 namespace geos {
43 namespace planargraph { // geos.planargraph
44
54 class GEOS_DLL Edge: public GraphComponent {
55
56 public:
57
58 friend std::ostream& operator<< (std::ostream& os, const Node&);
59
61 typedef std::set<const Edge *> ConstSet;
62
64 typedef std::set<Edge *> NonConstSet;
65
67 typedef std::vector<Edge *> NonConstVect;
68
70 typedef std::vector<const Edge *> ConstVect;
71
72 protected:
73
75 std::vector<DirectedEdge*> dirEdge;
76
83 public:
84
92 Edge(): dirEdge() {}
93
100 Edge(DirectedEdge *de0, DirectedEdge *de1)
101 :
102 dirEdge()
103 {
104 setDirectedEdges(de0, de1);
105 }
106
114 void setDirectedEdges(DirectedEdge *de0, DirectedEdge *de1);
115
120 DirectedEdge* getDirEdge(int i);
121
127 DirectedEdge* getDirEdge(Node *fromNode);
128
133 Node* getOppositeNode(Node *node);
134 };
135
137 std::ostream& operator<<(std::ostream& os, const Edge& n);
138
140 //typedef Edge planarEdge;
141
142 } // namespace geos::planargraph
143 } // namespace geos
144
145 #ifdef _MSC_VER
146 #pragma warning(pop)
147 #endif
148
149 #endif // GEOS_PLANARGRAPH_EDGE_H
geos::planargraph::Edge::ConstSet
std::set< const Edge * > ConstSet
Set of const Edges pointers.
Definition: planargraph/Edge.h:61
geos::planargraph::DirectedEdge
Represents a directed edge in a PlanarGraph.
Definition: planargraph/DirectedEdge.h:46
geos::planargraph::Edge::NonConstSet
std::set< Edge * > NonConstSet
Set of non-const Edges pointers.
Definition: planargraph/Edge.h:64
geos::planargraph::Edge::Edge
Edge(DirectedEdge *de0, DirectedEdge *de1)
Constructs an Edge initialized with the given DirectedEdges.
Definition: planargraph/Edge.h:100
geos::planargraph::Edge::dirEdge
std::vector< DirectedEdge * > dirEdge
The two DirectedEdges associated with this Edge.
Definition: planargraph/Edge.h:75
geos::planargraph::Edge::Edge
Edge()
Constructs an Edge whose DirectedEdges are not yet set.
Definition: planargraph/Edge.h:92
geos
Basic namespace for all GEOS functionalities.
Definition: IndexedNestedRingTester.h:25
geos::planargraph::Edge
Represents an undirected edge of a PlanarGraph.
Definition: planargraph/Edge.h:54
geos::planargraph::Edge::NonConstVect
std::vector< Edge * > NonConstVect
Vector of non-const Edges pointers.
Definition: planargraph/Edge.h:67
geos::planargraph::GraphComponent
The base class for all graph component classes.
Definition: planargraph/GraphComponent.h:46
geos::planargraph::Node
A node in a PlanarGraph is a location where 0 or more Edge meet.
Definition: planargraph/Node.h:45
geos::planargraph::operator<<
std::ostream & operator<<(std::ostream &, const DirectedEdge &)
Output operator.
geos::planargraph::Edge::ConstVect
std::vector< const Edge * > ConstVect
Vector of const Edges pointers.
Definition: planargraph/Edge.h:70