URL: https://svn.lrde.epita.fr/svn/oln/branches/cleanup-2008/milena ChangeLog: 2008-09-22 Matthieu Garrigues &lt;garrigues(a)lrde.epita.fr&gt; Add snake_vert browsing canvas. * mln/canvas/browsing/snake_vert.hh: New, snake vert browsing canvas. This canvas browse all the point of an image 'input' like this : 1 4 5 || /\ || || || || \/ || \/ 2 3 6 * tests/canvas/browsing/Makefile.am: Add snake_vert test. * tests/canvas/browsing/snake_vert.cc: New. The test. * mln/canvas/browsing/snake_fwd.hh: Desactivate check of dimension. --- mln/canvas/browsing/snake_fwd.hh | 8 + mln/canvas/browsing/snake_vert.hh | 166 ++++++++++++++++++++++++++++++++++++ tests/canvas/browsing/Makefile.am | 2 tests/canvas/browsing/snake_vert.cc | 96 ++++++++++++++++++++ 4 files changed, 269 insertions(+), 3 deletions(-) Index: branches/cleanup-2008/milena/tests/canvas/browsing/snake_vert.cc =================================================================== --- branches/cleanup-2008/milena/tests/canvas/browsing/snake_vert.cc (revision 0) +++ branches/cleanup-2008/milena/tests/canvas/browsing/snake_vert.cc (revision 2344) @@ -0,0 +1,96 @@ +// Copyright (C) 2007 EPITA Research and Development Laboratory +// +// This file is part of the Olena Library. This library is free +// software; you can redistribute it and/or modify it under the terms +// of the GNU General Public License version 2 as published by the +// Free Software Foundation. +// +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this library; see the file COPYING. If not, write to +// the Free Software Foundation, 51 Franklin Street, Fifth Floor, +// Boston, MA 02111-1307, USA. +// +// As a special exception, you may use this file as part of a free +// software library without restriction. Specifically, if other files +// instantiate templates or use macros or inline functions from this +// file, or you compile this file and link it with other files to +// produce an executable, this file does not by itself cause the +// resulting executable to be covered by the GNU General Public +// License. This exception does not however invalidate any other +// reasons why the executable file might be covered by the GNU General +// Public License. + +/*! \file tests/canvas/browsing/snake_vert.cc + * + * \brief Tests on mln::canvas::browsing::snake_vert. + */ + +#include <mln/core/image/image2d.hh> +#include <mln/canvas/browsing/snake_vert.hh> +#include <mln/fun/p2v/iota.hh> +#include <mln/debug/println.hh> + +// FIXME: Move code below into mln/canvas/browsing/iota.hh. + + +template <typename I, typename F> +struct assign_browsing_functor +{ + enum { dim = I::site::dim }; + + + I input; + F f; + + assign_browsing_functor(I& input, F f = F()) + : input(input), + f(f) + {} + + mln_psite(I) p; + + void init() {} + void final() {} + void next() + { + input(p) = f(p); +// mln_assertion(input(p) - 1 == p[0] * input.domain().ncols() +// + ( (p[0] % 2) ? input.domain().ncols() - 1 - p[1] : p[1])); + } + void fwd() { next(); } + void up() { next(); } + void down() { next(); } +}; + +namespace mln +{ + + template <typename I, typename F, typename B> + void my_test(Image<I>& ima_, + const Function_p2v<F>& f_, + const Browsing<B>& browse_) + { + I& ima = exact(ima_); + const F& f = exact(f_); + const B& browse = exact(browse_); + + assign_browsing_functor<I, F> fun(ima, f); + browse(fun); + } + +} + + +int main() +{ + using namespace mln; + image2d<unsigned> ima2(2, 7); + + my_test(ima2, fun::p2v::iota, canvas::browsing::snake_vert); + debug::println(ima2); +} Index: branches/cleanup-2008/milena/tests/canvas/browsing/Makefile.am =================================================================== --- branches/cleanup-2008/milena/tests/canvas/browsing/Makefile.am (revision 2343) +++ branches/cleanup-2008/milena/tests/canvas/browsing/Makefile.am (revision 2344) @@ -5,11 +5,13 @@ check_PROGRAMS = \ fwd \ snake_fwd \ + snake_vert \ directional \ dir_struct_elt_incr_update fwd_SOURCES = fwd.cc snake_fwd_SOURCES = snake_fwd.cc +snake_vert_SOURCES = snake_vert.cc directional_SOURCES = directional.cc dir_struct_elt_incr_update_SOURCES = dir_struct_elt_incr_update.cc Index: branches/cleanup-2008/milena/mln/canvas/browsing/snake_fwd.hh =================================================================== --- branches/cleanup-2008/milena/mln/canvas/browsing/snake_fwd.hh (revision 2343) +++ branches/cleanup-2008/milena/mln/canvas/browsing/snake_fwd.hh (revision 2344) @@ -101,7 +101,9 @@ void snake_fwd_t::operator()(F& f) const { - // FIXME: Check the dimension (2D) or generalize. + // Fixme: check the dimension of the input +// mlc_equal(mln_trait_image_dimension(I)(), +// trait::image::dimension::two_d)::check(); trace::entering("canvas::browsing::snake_fwd"); mln_precondition(f.input.has_data()); int @@ -141,9 +143,9 @@ while (col > min_col) { --col; - trace::entering("canvas::browsing::snake_fwd"); + trace::entering("canvas::browsing::snake_fwd::bkd"); f.bkd(); - trace::exiting("canvas::browsing::snake_fwd"); + trace::exiting("canvas::browsing::snake_fwd::bkd"); } // change browsing Index: branches/cleanup-2008/milena/mln/canvas/browsing/snake_vert.hh =================================================================== --- branches/cleanup-2008/milena/mln/canvas/browsing/snake_vert.hh (revision 0) +++ branches/cleanup-2008/milena/mln/canvas/browsing/snake_vert.hh (revision 2344) @@ -0,0 +1,166 @@ +// Copyright (C) 2007 EPITA Research and Development Laboratory +// +// This file is part of the Olena Library. This library is free +// software; you can redistribute it and/or modify it under the terms +// of the GNU General Public License version 2 as published by the +// Free Software Foundation. +// +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this library; see the file COPYING. If not, write to +// the Free Software Foundation, 51 Franklin Street, Fifth Floor, +// Boston, MA 02111-1307, USA. +// +// As a special exception, you may use this file as part of a free +// software library without restriction. Specifically, if other files +// instantiate templates or use macros or inline functions from this +// file, or you compile this file and link it with other files to +// produce an executable, this file does not by itself cause the +// resulting executable to be covered by the GNU General Public +// License. This exception does not however invalidate any other +// reasons why the executable file might be covered by the GNU General +// Public License. + +#ifndef MLN_CANVAS_BROWSING_SNAKE_VERT_HH +# define MLN_CANVAS_BROWSING_SNAKE_VERT_HH + +/*! \file mln/canvas/browsing/snake_vert.hh + * + * \brief Browsing in a snake-way, forward. + */ + +# include <mln/core/concept/browsing.hh> +# include <mln/geom/size2d.hh> + + +namespace mln +{ + + namespace canvas + { + + namespace browsing + { + + /*! + * \brief Browsing in a snake-way, forward. + * + * This canvas browse all the point of an image 'input' like + * this : + * + * | /\ | + * | | | + * \/ | \/ + * + * The fonctor should provide (In addition to 'input') four + * methods : + * + * - init() : Will be called at the beginning. + * - down() : Will be called after each moving down. + * - up() : Will ba called after each moving up. + * - fwd() : Will be called after each moving right. (will + * also be called once at the first point). + * + * This methods should acces to the current working point 'p' + * also provided by the functor. + * + * Warning: This canvas works only on 2D. + * + * F shall feature: \n + * { \n + * --- as attributes: \n + * input; \n + * p; \n + * --- as methods: \n + * void init(); \n + * void down(); \n + * void up(); \n + * void fwd(); \n + * } \n + * + */ + + struct snake_vert_t : public Browsing< snake_vert_t > + { + template <typename F> + void operator()(F& f) const; + } + + snake_vert; + + + +# ifndef MLN_INCLUDE_ONLY + + template <typename F> + inline + void + snake_vert_t::operator()(F& f) const + { + // Fixme: check the dimension of the input +// mlc_equal(mln_trait_image_dimension(I)(), +// trait::image::dimension::two_d)::check(); + trace::entering("canvas::browsing::snake_vert"); + mln_precondition(f.input.has_data()); + int + min_row = geom::min_row(f.input), max_row = geom::max_row(f.input), + min_col = geom::min_col(f.input), max_col = geom::max_col(f.input); + + // p + f.p = f.input.bbox().pmin(); + def::coord& row = f.p.row(); + def::coord& col = f.p.col(); + + // initialization + trace::entering("canvas::browsing::snake_vert::init"); + f.init(); + trace::exiting("canvas::browsing::snake_vert::init"); + + bool down = true; + for (col = min_col; col <= max_col; ++col) + // FIXME: Add "if (f.input.has(p))"? + { + // go fwd + trace::entering("canvas::browsing::snake_vert::init"); + f.fwd(); + trace::exiting("canvas::browsing::snake_vert::init"); + + if (down) + // browse col down. + while (row < max_row) + { + ++row; + trace::entering("canvas::browsing::snake_vert::down"); + f.down(); + trace::exiting("canvas::browsing::snake_vert::down"); + } + else + // browse col up. + while (row > min_row) + { + --row; + trace::entering("canvas::browsing::snake_vert::up"); + f.up(); + trace::exiting("canvas::browsing::snake_vert::up"); + } + + // change browsing + down = ! down; + } + trace::exiting("canvas::browsing::snake_vert"); + } + +# endif // ! MLN_INCLUDE_ONLY + + } // end of namespace mln::canvas::browsing + + } // end of namespace mln::canvas + +} // end of namespace mln + + +#endif // ! MLN_CANVAS_BROWSING_SNAKE_VERT_HH