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00027 #ifndef MLN_CANVAS_BROWSING_HYPER_DIRECTIONAL_HH
00028 # define MLN_CANVAS_BROWSING_HYPER_DIRECTIONAL_HH
00029
00033
00034 # include <mln/core/concept/browsing.hh>
00035 # include <mln/core/concept/image.hh>
00036
00037 namespace mln
00038 {
00039
00040 namespace canvas
00041 {
00042
00043 namespace browsing
00044 {
00045
00047
00075 struct hyper_directional_t : public Browsing< hyper_directional_t >
00076 {
00077
00078
00079 hyper_directional_t();
00080
00081 template <typename F>
00082 void operator()(F& f) const;
00083 };
00084
00085 extern const hyper_directional_t hyper_directional;
00086
00087 # ifndef MLN_INCLUDE_ONLY
00088
00089 # ifndef MLN_WO_GLOBAL_VARS
00090
00091 const hyper_directional_t hyper_directional;
00092
00093 # endif // ! MLN_WO_GLOBAL_VARS
00094
00095
00096 inline
00097 hyper_directional_t::hyper_directional_t()
00098 {
00099 }
00100
00101 template <typename F>
00102 inline
00103 void
00104 hyper_directional_t::operator()(F& f) const
00105 {
00106 trace::entering("canvas::browsing::hyper_directional");
00107 mln_precondition(f.dir < f.dim);
00108 typedef typename F::I I;
00109
00110 mln_psite(I)
00111 pmin = f.input.domain().pmin(),
00112 pmax = f.input.domain().pmax();
00113
00114 f.p = pmin;
00115
00116 f.init();
00117
00118 do
00119 {
00120 f.next();
00121
00122 for (int c = F::dim - 1; c >= 0; --c)
00123 {
00124 if (c == int(f.dir))
00125 continue;
00126 if (f.p[c] != pmax[c])
00127 {
00128 ++f.p[c];
00129 break;
00130 }
00131 f.p[c] = pmin[c];
00132 }
00133 } while (f.p != pmin);
00134
00135 f.final();
00136 trace::exiting("canvas::browsing::hyper_directional");
00137 }
00138
00139 # endif // ! MLN_INCLUDE_ONLY
00140
00141 }
00142
00143 }
00144
00145 }
00146
00147 #endif // ! MLN_CANVAS_BROWSING_HYPER_DIRECTIONAL_HH