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.
12  * See the COPYING file for more information.
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