GEOS: DirectedEdgeStar.h Source File

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planargraph/DirectedEdgeStar.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_DIRECTEDEDGESTAR_H
17 #define GEOS_PLANARGRAPH_DIRECTEDEDGESTAR_H
18
19 #include <geos/export.h>
20
21 #include <vector>
22
23 #ifdef _MSC_VER
24 #pragma warning(push)
25 #pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
26 #endif
27
28 // Forward declarations
29 namespace geos {
30 namespace geom {
31 class Coordinate;
32 }
33 namespace planargraph {
34 class DirectedEdge;
35 class Edge;
36 }
37 }
38
39 namespace geos {
40 namespace planargraph { // geos.planargraph
41
43 class GEOS_DLL DirectedEdgeStar {
44 protected:
45
46 private:
50 mutable std::vector<DirectedEdge*> outEdges;
51 mutable bool sorted;
52 void sortEdges() const;
53
54 public:
58 DirectedEdgeStar(): sorted(false) {}
59
60 virtual ~DirectedEdgeStar() {}
61
65 void add(DirectedEdge *de);
66
70 void remove(DirectedEdge *de);
71
76 std::vector<DirectedEdge*>::iterator iterator() { return begin(); }
78 std::vector<DirectedEdge*>::iterator begin();
79
81 std::vector<DirectedEdge*>::iterator end();
82
84 std::vector<DirectedEdge*>::const_iterator begin() const;
85
87 std::vector<DirectedEdge*>::const_iterator end() const;
88
93 std::size_t getDegree() const { return outEdges.size(); }
94
99 geom::Coordinate& getCoordinate() const;
100
105 std::vector<DirectedEdge*>& getEdges();
106
112 int getIndex(const Edge *edge);
113
119 int getIndex(const DirectedEdge *dirEdge);
120
125 int getIndex(int i) const;
126
132 DirectedEdge* getNextEdge(DirectedEdge *dirEdge);
133 };
134
135 } // namespace geos::planargraph
136 } // namespace geos
137
138 #ifdef _MSC_VER
139 #pragma warning(pop)
140 #endif
141
142 #endif // GEOS_PLANARGRAPH_DIRECTEDEDGESTAR_H
geos::planargraph::DirectedEdgeStar::DirectedEdgeStar
DirectedEdgeStar()
Constructs a DirectedEdgeStar with no edges.
Definition: planargraph/DirectedEdgeStar.h:58
geos::planargraph::DirectedEdgeStar
A sorted collection of DirectedEdge which leave a Node in a PlanarGraph.
Definition: planargraph/DirectedEdgeStar.h:43
geos::geom::Coordinate
Coordinate is the lightweight class used to store coordinates.
Definition: Coordinate.h:60
geos::planargraph::DirectedEdge
Represents a directed edge in a PlanarGraph.
Definition: planargraph/DirectedEdge.h:46
geos::planargraph::DirectedEdgeStar::getDegree
std::size_t getDegree() const
Returns the number of edges around the Node associated with this DirectedEdgeStar.
Definition: planargraph/DirectedEdgeStar.h:93
geos::planargraph::DirectedEdgeStar::iterator
std::vector< DirectedEdge * >::iterator iterator()
Returns an Iterator over the DirectedEdges, in ascending order by angle with the positive x-axis...
Definition: planargraph/DirectedEdgeStar.h:76
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