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grids.hh
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25 
26 #ifndef MLN_CORE_GRIDS_HH
27 # define MLN_CORE_GRIDS_HH
28 
32 
33 # include <mln/core/concept/regular_grid.hh>
34 # include <mln/core/def/coord.hh>
35 # include <mln/metal/bool.hh>
36 
37 
38 namespace mln
39 {
40 
42  namespace grid
43  {
44 
45  struct tick : public Regular_Grid< tick >
46  {
48  enum { dim = 1 };
49  };
50 
51  struct square : public Regular_Grid< square >
52  {
54  enum { dim = 2 };
55  };
56 
57  struct hexa : public Regular_Grid< hexa >
58  {
60  enum { dim = 2 };
61  };
62 
63  struct cube : public Regular_Grid< cube >
64  {
66  enum { dim = 3 };
67  };
68 
69  } // end of namespace mln::grid
70 
71 
72  // Function: dim -> regular grid.
73 
74  template <unsigned dim> struct regular_grid_from_dim_;
75 
76  template <> struct regular_grid_from_dim_<1> { typedef grid::tick ret; };
77  template <> struct regular_grid_from_dim_<2> { typedef grid::square ret; };
78  template <> struct regular_grid_from_dim_<3> { typedef grid::cube ret; };
79 
80 } // end of namespace mln
81 
82 
83 # define mln_regular_grid_from_dim(N) typename mln::regular_grid_from_dim_< N >::ret
84 
85 
86 #endif // ! MLN_CORE_GRIDS_HH