GEOS  3.8.0dev
ConnectedElementPointFilter.h
1 /**********************************************************************
2  *
3  * GEOS - Geometry Engine Open Source
4  * http://geos.osgeo.org
5  *
6  * Copyright (C) 2006 Refractions Research Inc.
7  *
8  * This is free software; you can redistribute and/or modify it under
9  * the terms of the GNU Lesser General Public Licence as published
10  * by the Free Software Foundation.
11  * See the COPYING file for more information.
12  *
13  **********************************************************************
14  *
15  * Last port: operation/distance/ConnectedElementPointFilter.java rev. 1.7 (JTS-1.10)
16  *
17  **********************************************************************/
18 
19 #ifndef GEOS_OP_DISTANCE_CONNECTEDELEMENTPOINTFILTER_H
20 #define GEOS_OP_DISTANCE_CONNECTEDELEMENTPOINTFILTER_H
21 
22 #include <geos/export.h>
23 
24 #include <geos/geom/GeometryFilter.h> // for inheritance
25 
26 #include <vector>
27 
28 // Forward declarations
29 namespace geos {
30 namespace geom {
31 class Coordinate;
32 class Geometry;
33 }
34 }
35 
36 
37 namespace geos {
38 namespace operation { // geos::operation
39 namespace distance { // geos::operation::distance
40 
48 
49 private:
50  std::vector<const geom::Coordinate*>* pts;
51 
52 public:
58  static std::vector<const geom::Coordinate*>* getCoordinates(const geom::Geometry* geom);
59 
60  ConnectedElementPointFilter(std::vector<const geom::Coordinate*>* newPts)
61  :
62  pts(newPts)
63  {}
64 
65  void filter_ro(const geom::Geometry* geom) override;
66 
67  //void filter_rw(geom::Geometry * /*geom*/) {};
68 };
69 
70 
71 } // namespace geos::operation::distance
72 } // namespace geos::operation
73 } // namespace geos
74 
75 #endif // GEOS_OP_DISTANCE_CONNECTEDELEMENTPOINTFILTER_H
76 
Geometry classes support the concept of applying a Geometry filter to the Geometry.
Definition: GeometryFilter.h:47
Basic implementation of Geometry, constructed and destructed by GeometryFactory.
Definition: Geometry.h:187
Basic namespace for all GEOS functionalities.
Definition: IndexedNestedRingTester.h:25
Extracts a single point from each connected element in a Geometry (e.g. a polygon, linestring or point) and returns them in a list.
Definition: ConnectedElementPointFilter.h:47