GEOS  3.3.3
CoordinateSequenceFilter.h
1 /**********************************************************************
2  * $Id: CoordinateSequenceFilter.h 3255 2011-03-01 17:56:10Z mloskot $
3  *
4  * GEOS - Geometry Engine Open Source
5  * http://geos.refractions.net
6  *
7  * Copyright (C) 2009 Sandro Santilli <strk@keybit.net>
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: geom/CoordinateSequenceFilter.java rev. 1.3 (JTS-1.9)
17  *
18  **********************************************************************/
19 
20 #ifndef GEOS_GEOM_COORDINATESEQUENCEFILTER_H
21 #define GEOS_GEOM_COORDINATESEQUENCEFILTER_H
22 
23 #include <geos/export.h>
24 #include <geos/inline.h>
25 
26 #include <cassert>
27 
28 // Forward declarations
29 namespace geos {
30  namespace geom {
31  class CoordinateSequence;
32  }
33 }
34 
35 namespace geos {
36 namespace geom { // geos::geom
37 
59 class GEOS_DLL CoordinateSequenceFilter {
60 
61 public:
62 
63  virtual ~CoordinateSequenceFilter() {}
64 
72  virtual void filter_rw(CoordinateSequence& /*seq*/, std::size_t /*i*/)
73  { assert(0); }
74 
82  virtual void filter_ro(const CoordinateSequence& /*seq*/, std::size_t /*i*/)
83  { assert(0); }
84 
92  virtual bool isDone() const = 0;
93 
94 
106  virtual bool isGeometryChanged() const = 0;
107 
108 };
109 
110 } // namespace geos::geom
111 } // namespace geos
112 
113 
114 #endif // ndef GEOS_GEOM_COORDINATESEQUENCEFILTER_H
115