GEOS  3.4.2
IsSimpleOp.h
1 /**********************************************************************
2  *
3  * GEOS - Geometry Engine Open Source
4  * http://geos.osgeo.org
5  *
6  * Copyright (C) 2009 Sandro Santilli <strk@keybit.net>
7  * Copyright (C) 2005-2006 Refractions Research Inc.
8  * Copyright (C) 2001-2002 Vivid Solutions Inc.
9  *
10  * This is free software; you can redistribute and/or modify it under
11  * the terms of the GNU Lesser General Public Licence as published
12  * by the Free Software Foundation.
13  * See the COPYING file for more information.
14  *
15  **********************************************************************
16  *
17  * Last port: operation/IsSimpleOp.java rev. 1.22 (JTS-1.10)
18  *
19  **********************************************************************/
20 
21 #ifndef GEOS_OPERATION_ISSIMPLEOP_H
22 #define GEOS_OPERATION_ISSIMPLEOP_H
23 
24 #include <geos/export.h>
25 #include <geos/geom/Coordinate.h> // for dtor visibility by auto_ptr (compos)
26 
27 #include <map>
28 #include <memory> // for auto_ptr
29 
30 #ifdef _MSC_VER
31 #pragma warning(push)
32 #pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
33 #endif
34 
35 // Forward declarations
36 namespace geos {
37  namespace algorithm {
38  class BoundaryNodeRule;
39  }
40  namespace geom {
41  class LineString;
42  class MultiLineString;
43  class MultiPoint;
44  class Geometry;
45  struct CoordinateLessThen;
46  }
47  namespace geomgraph {
48  class GeometryGraph;
49  }
50  namespace operation {
51  class EndpointInfo;
52  }
53 }
54 
55 
56 namespace geos {
57 namespace operation { // geos.operation
58 
93 class GEOS_DLL IsSimpleOp
94 {
95 
96 public:
97 
104  IsSimpleOp();
105 
113  IsSimpleOp(const geom::Geometry& geom);
114 
122  IsSimpleOp(const geom::Geometry& geom,
123  const algorithm::BoundaryNodeRule& boundaryNodeRule);
124 
130  bool isSimple();
131 
143  {
144  return nonSimpleLocation.get();
145  }
146 
155  bool isSimple(const geom::LineString *geom);
156 
165  bool isSimple(const geom::MultiLineString *geom);
166 
172  bool isSimple(const geom::MultiPoint *mp);
173 
174  bool isSimpleLinearGeometry(const geom::Geometry *geom);
175 
176 private:
177 
184  bool hasNonEndpointIntersection(geomgraph::GeometryGraph &graph);
185 
194  bool hasClosedEndpointIntersection(geomgraph::GeometryGraph &graph);
195 
199  void addEndpoint(std::map<const geom::Coordinate*, EndpointInfo*,
200  geom::CoordinateLessThen>&endPoints,
201  const geom::Coordinate *p, bool isClosed);
202 
203  bool isClosedEndpointsInInterior;
204 
205  bool isSimpleMultiPoint(const geom::MultiPoint& mp);
206 
207  const geom::Geometry* geom;
208 
209  std::auto_ptr<geom::Coordinate> nonSimpleLocation;
210 };
211 
212 } // namespace geos.operation
213 } // namespace geos
214 
215 #ifdef _MSC_VER
216 #pragma warning(pop)
217 #endif
218 
219 #endif
Coordinate is the lightweight class used to store coordinates.
Definition: Coordinate.h:60
Strict weak ordering Functor for Coordinate.
Definition: Coordinate.h:127
Definition: GeometryGraph.h:72
const geom::Coordinate * getNonSimpleLocation() const
Definition: IsSimpleOp.h:142
Basic implementation of Geometry, constructed and destructed by GeometryFactory.
Definition: Geometry.h:167
Definition: LineString.h:70
Definition: BoundaryNodeRule.h:50
Definition: MultiPoint.h:55
Models a collection of (}s.
Definition: MultiLineString.h:51
Tests whether a Geometry is simple.
Definition: IsSimpleOp.h:93