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to_upper_window.hh
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// Copyright (C) 2007, 2008, 2009 EPITA Research and Development Laboratory (LRDE)
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//
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// This file is part of Olena.
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//
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// Olena is free software: you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation, version 2 of the License.
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//
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// Olena is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Olena. If not, see <http://www.gnu.org/licenses/>.
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//
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// As a special exception, you may use this file as part of a free
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// software project without restriction. Specifically, if other files
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// instantiate templates or use macros or inline functions from this
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// file, or you compile this file and link it with other files to produce
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// an executable, this file does not by itself cause the resulting
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// executable to be covered by the GNU General Public License. This
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// exception does not however invalidate any other reasons why the
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// executable file might be covered by the GNU General Public License.
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#ifndef MLN_CONVERT_TO_UPPER_WINDOW_HH
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# define MLN_CONVERT_TO_UPPER_WINDOW_HH
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# include <mln/core/concept/delta_point_site.hh>
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# include <mln/core/concept/neighborhood.hh>
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# include <mln/core/window.hh>
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namespace
mln
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{
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namespace
convert
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{
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template
<
typename
W>
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window<mln_dpsite(W)>
to_upper_window
(
const
Window<W>& win);
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template
<
typename
N>
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window<mln_dpoint(N)>
to_upper_window
(
const
Neighborhood<N>& nbh);
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# ifndef MLN_INCLUDE_ONLY
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/* FIXME: According to milena/core/concepts/README, windows are
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not necessarily based on a set of dpoints. So the current
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algorithm won't work on non dpoint-set-based windows. In the
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general case (of windows not being a set of dpoints), the
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window resulting from this conversion (as well as the iterators
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based on such windows!) should depend on the initial
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neighborhood (i.e., delegate the actual iteration to the
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aggregated neighborhood). When this is fixed, document this in
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depth in milena/core/concepts/README. */
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template
<
typename
W>
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inline
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window<mln_dpsite(W)>
to_upper_window
(
const
Window<W>
& win_)
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{
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const
W& input_win = exact(win_);
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typedef
mln_dpsite(W) D;
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typedef
mln_point(D) P;
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window<D>
win;
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mln_qiter(W) q(input_win, P::origin);
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for_all(q)
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if
(q > P::origin)
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win.
insert
(q - P::origin);
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return
win;
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}
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template
<
typename
N>
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inline
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window<mln_dpoint(N)>
to_upper_window
(
const
Neighborhood<N>
& nbh_)
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{
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const
N& nbh = exact(nbh_);
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typedef
mln_dpoint(N) D;
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typedef
mln_point(D) P;
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window<D>
win;
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mln_niter(N) n(nbh, P::origin);
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for_all(n)
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if
(n > P::origin)
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win.
insert
(n - P::origin);
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return
win;
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}
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# endif // ! MLN_INCLUDE_ONLY
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}
// end of namespace mln::convert
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}
// end of namespace mln
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#endif // ! MLN_CONVERT_TO_UPPER_WINDOW_HH
mln
convert
to_upper_window.hh
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