27 #ifndef MLN_CANVAS_BROWSING_BACKDIAGONAL2D_HH
28 # define MLN_CANVAS_BROWSING_BACKDIAGONAL2D_HH
34 # include <mln/core/concept/browsing.hh>
35 # include <mln/core/concept/image.hh>
100 # ifndef MLN_INCLUDE_ONLY
102 # ifndef MLN_WO_GLOBAL_VARS
106 # endif // ! MLN_WO_GLOBAL_VARS
113 template <
typename F>
118 mln_trace(
"canvas::browsing::backdiagonal2d");
120 typedef typename F::I I;
122 typedef mln_psite(I)
psite;
125 dpsite dp_first(-1, 0);
126 dpsite dp_second(0, 1);
127 dpsite dp_diag(1, 1);
129 mln_deduce(I, psite,
delta) diag;
132 pmin = f.input.domain().pmin(),
133 pmax = f.input.domain().pmax();
141 while (f.input.domain().has(f.
p))
143 psite start_diag = f.p;
146 while (f.input.domain().has(f.p))
153 f.p = start_diag + dp_first;
155 f.p = f.p - dp_first;
157 f.p = f.p + dp_second;
158 while (f.input.domain().has(f.p))
160 psite start_diag = f.p;
164 while (f.input.domain().has(f.p))
172 f.p = start_diag + dp_second;
178 # endif // ! MLN_INCLUDE_ONLY
186 #endif // ! MLN_CANVAS_BROWSING_BACKDIAGONAL2D_HH