GEOS  3.8.0dev
Label.h
1 /**********************************************************************
2  *
3  * GEOS - Geometry Engine Open Source
4  * http://geos.osgeo.org
5  *
6  * Copyright (C) 2005-2006 Refractions Research Inc.
7  * Copyright (C) 2001-2002 Vivid Solutions 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.
13  *
14  **********************************************************************
15  *
16  * Last port: geomgraph/Label.java r428 (JTS-1.12+)
17  *
18  **********************************************************************/
19
20
21 #ifndef GEOS_GEOMGRAPH_LABEL_H
22 #define GEOS_GEOMGRAPH_LABEL_H
23
24 #include <geos/export.h>
25 #include <geos/geom/Location.h>
26 #include <geos/geomgraph/TopologyLocation.h>
27
28 #include <geos/inline.h>
29
30 #include <iosfwd> // for operator<<
31
32 namespace geos {
33 namespace geomgraph { // geos.geomgraph
34
58 class GEOS_DLL Label {
59
60 public:
61
62  friend std::ostream& operator<< (std::ostream&, const Label&);
63
69  static Label toLineLabel(const Label& label);
70
74  Label(geom::Location onLoc);
75
83  Label(int geomIndex, geom::Location onLoc);
84
90  Label(geom::Location onLoc, geom::Location leftLoc, geom::Location rightLoc);
91
93  Label(const Label& l);
94
95  Label& operator= (const Label& l);
96
102  Label();
103
110  Label(int geomIndex, geom::Location onLoc, geom::Location leftLoc, geom::Location rightLoc);
111
112  void flip();
113
114  geom::Location getLocation(int geomIndex, int posIndex) const;
115
116  geom::Location getLocation(int geomIndex) const;
117
118  void setLocation(int geomIndex, int posIndex, geom::Location location);
119
120  void setLocation(int geomIndex, geom::Location location);
121
122  void setAllLocations(int geomIndex, geom::Location location);
123
124  void setAllLocationsIfNull(int geomIndex, geom::Location location);
125
126  void setAllLocationsIfNull(geom::Location location);
127
134  void merge(const Label& lbl);
135
136  int getGeometryCount() const;
137
138  bool isNull() const;
139
140  bool isNull(int geomIndex) const;
141
142  bool isAnyNull(int geomIndex) const;
143
144  bool isArea() const;
145
146  bool isArea(int geomIndex) const;
147
148  bool isLine(int geomIndex) const;
149
150  bool isEqualOnSide(const Label& lbl, int side) const;
151
152  bool allPositionsEqual(int geomIndex, geom::Location loc) const;
153
157  void toLine(int geomIndex);
158
159  std::string toString() const;
160
161 private:
162
163  TopologyLocation elt[2];
164 };
165
166 std::ostream& operator<< (std::ostream&, const Label&);
167
168 } // namespace geos.geomgraph
169 } // namespace geos
170
171
172 //#ifdef GEOS_INLINE
173 //# include "geos/geomgraph/Label.inl"
174 //#endif
175
176 #endif // ifndef GEOS_GEOMGRAPH_LABEL_H
177
A TopologyLocation is the labelling of a GraphComponent's topological relationship to a single Geomet...
Definition: TopologyLocation.h:59
Location
Constants representing the location of a point relative to a geometry.
Definition: Location.h:33
A Label indicates the topological relationship of a component of a topology graph to a given Geometry...
Definition: Label.h:58
Basic namespace for all GEOS functionalities.
Definition: IndexedNestedRingTester.h:25