$extrastylesheet
Olena  User documentation 2.1
An Image Processing Platform
 All Classes Namespaces Functions Variables Typedefs Enumerations Enumerator Friends Groups Pages
chess.hh
1 // Copyright (C) 2007, 2008, 2009 EPITA Research and Development Laboratory (LRDE)
2 //
3 // This file is part of Olena.
4 //
5 // Olena is free software: you can redistribute it and/or modify it under
6 // the terms of the GNU General Public License as published by the Free
7 // Software Foundation, version 2 of the License.
8 //
9 // Olena is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 // General Public License for more details.
13 //
14 // You should have received a copy of the GNU General Public License
15 // along with Olena. If not, see <http://www.gnu.org/licenses/>.
16 //
17 // As a special exception, you may use this file as part of a free
18 // software project without restriction. Specifically, if other files
19 // instantiate templates or use macros or inline functions from this
20 // file, or you compile this file and link it with other files to produce
21 // an executable, this file does not by itself cause the resulting
22 // executable to be covered by the GNU General Public License. This
23 // exception does not however invalidate any other reasons why the
24 // executable file might be covered by the GNU General Public License.
25 
26 #ifndef MLN_FUN_P2B_CHESS_HH
27 # define MLN_FUN_P2B_CHESS_HH
28 
32 
33 # include <mln/core/concept/function.hh>
34 # include <mln/core/alias/point2d.hh>
35 
36 
37 namespace mln
38 {
39 
40  namespace fun
41  {
42 
43  namespace p2b
44  {
45 
46  // FIXME: Doc!
47 
48  struct chess : public Function_v2b< chess >
49  {
50  typedef bool result;
51  bool operator()(const point2d& p) const;
52  };
53 
54 
55 # ifndef MLN_INCLUDE_ONLY
56 
57  inline
58  bool
59  chess::operator()(const point2d& p) const
60  {
61  return (p.row() + p.col()) % 2 == 0;
62  }
63 
64 # endif // ! MLN_INCLUDE_ONLY
65 
66  } // end of namespace mln::fun::p2b
67 
68  } // end of namespace mln::fun
69 
70 } // end of namespace mln
71 
72 
73 #endif // ! MLN_FUN_P2B_CHESS_HH